1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/soc/tegra/pmc.c
5 * Copyright (c) 2010 Google, Inc
6 * Copyright (c) 2018-2023, NVIDIA CORPORATION. All rights reserved.
12 #define pr_fmt(fmt) "tegra-pmc: " fmt
14 #include <linux/arm-smccc.h>
15 #include <linux/clk.h>
16 #include <linux/clk-provider.h>
17 #include <linux/clkdev.h>
18 #include <linux/clk/clk-conf.h>
19 #include <linux/clk/tegra.h>
20 #include <linux/debugfs.h>
21 #include <linux/delay.h>
22 #include <linux/device.h>
23 #include <linux/err.h>
24 #include <linux/export.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
28 #include <linux/iopoll.h>
29 #include <linux/irqdomain.h>
30 #include <linux/irq.h>
31 #include <linux/kernel.h>
32 #include <linux/of_address.h>
33 #include <linux/of_clk.h>
35 #include <linux/of_irq.h>
36 #include <linux/of_platform.h>
37 #include <linux/pinctrl/pinconf-generic.h>
38 #include <linux/pinctrl/pinconf.h>
39 #include <linux/pinctrl/pinctrl.h>
40 #include <linux/platform_device.h>
41 #include <linux/pm_domain.h>
42 #include <linux/pm_opp.h>
43 #include <linux/power_supply.h>
44 #include <linux/reboot.h>
45 #include <linux/regmap.h>
46 #include <linux/reset.h>
47 #include <linux/seq_file.h>
48 #include <linux/slab.h>
49 #include <linux/spinlock.h>
50 #include <linux/syscore_ops.h>
52 #include <soc/tegra/common.h>
53 #include <soc/tegra/fuse.h>
54 #include <soc/tegra/pmc.h>
56 #include <dt-bindings/interrupt-controller/arm-gic.h>
57 #include <dt-bindings/pinctrl/pinctrl-tegra-io-pad.h>
58 #include <dt-bindings/gpio/tegra186-gpio.h>
59 #include <dt-bindings/gpio/tegra194-gpio.h>
60 #include <dt-bindings/gpio/tegra234-gpio.h>
61 #include <dt-bindings/soc/tegra-pmc.h>
64 #define PMC_CNTRL_INTR_POLARITY BIT(17) /* inverts INTR polarity */
65 #define PMC_CNTRL_CPU_PWRREQ_OE BIT(16) /* CPU pwr req enable */
66 #define PMC_CNTRL_CPU_PWRREQ_POLARITY BIT(15) /* CPU pwr req polarity */
67 #define PMC_CNTRL_SIDE_EFFECT_LP0 BIT(14) /* LP0 when CPU pwr gated */
68 #define PMC_CNTRL_SYSCLK_OE BIT(11) /* system clock enable */
69 #define PMC_CNTRL_SYSCLK_POLARITY BIT(10) /* sys clk polarity */
70 #define PMC_CNTRL_PWRREQ_POLARITY BIT(8)
71 #define PMC_CNTRL_BLINK_EN 7
72 #define PMC_CNTRL_MAIN_RST BIT(4)
74 #define PMC_WAKE_MASK 0x0c
75 #define PMC_WAKE_LEVEL 0x10
76 #define PMC_WAKE_STATUS 0x14
77 #define PMC_SW_WAKE_STATUS 0x18
78 #define PMC_DPD_PADS_ORIDE 0x1c
79 #define PMC_DPD_PADS_ORIDE_BLINK 20
81 #define DPD_SAMPLE 0x020
82 #define DPD_SAMPLE_ENABLE BIT(0)
83 #define DPD_SAMPLE_DISABLE (0 << 0)
85 #define PWRGATE_TOGGLE 0x30
86 #define PWRGATE_TOGGLE_START BIT(8)
88 #define REMOVE_CLAMPING 0x34
90 #define PWRGATE_STATUS 0x38
92 #define PMC_BLINK_TIMER 0x40
93 #define PMC_IMPL_E_33V_PWR 0x40
95 #define PMC_PWR_DET 0x48
97 #define PMC_SCRATCH0_MODE_RECOVERY BIT(31)
98 #define PMC_SCRATCH0_MODE_BOOTLOADER BIT(30)
99 #define PMC_SCRATCH0_MODE_RCM BIT(1)
100 #define PMC_SCRATCH0_MODE_MASK (PMC_SCRATCH0_MODE_RECOVERY | \
101 PMC_SCRATCH0_MODE_BOOTLOADER | \
102 PMC_SCRATCH0_MODE_RCM)
104 #define PMC_CPUPWRGOOD_TIMER 0xc8
105 #define PMC_CPUPWROFF_TIMER 0xcc
106 #define PMC_COREPWRGOOD_TIMER 0x3c
107 #define PMC_COREPWROFF_TIMER 0xe0
109 #define PMC_PWR_DET_VALUE 0xe4
111 #define PMC_USB_DEBOUNCE_DEL 0xec
112 #define PMC_USB_AO 0xf0
114 #define PMC_SCRATCH37 0x130
115 #define PMC_SCRATCH41 0x140
117 #define PMC_WAKE2_MASK 0x160
118 #define PMC_WAKE2_LEVEL 0x164
119 #define PMC_WAKE2_STATUS 0x168
120 #define PMC_SW_WAKE2_STATUS 0x16c
122 #define PMC_CLK_OUT_CNTRL 0x1a8
123 #define PMC_CLK_OUT_MUX_MASK GENMASK(1, 0)
124 #define PMC_SENSOR_CTRL 0x1b0
125 #define PMC_SENSOR_CTRL_SCRATCH_WRITE BIT(2)
126 #define PMC_SENSOR_CTRL_ENABLE_RST BIT(1)
128 #define PMC_RST_STATUS_POR 0
129 #define PMC_RST_STATUS_WATCHDOG 1
130 #define PMC_RST_STATUS_SENSOR 2
131 #define PMC_RST_STATUS_SW_MAIN 3
132 #define PMC_RST_STATUS_LP0 4
133 #define PMC_RST_STATUS_AOTAG 5
135 #define IO_DPD_REQ 0x1b8
136 #define IO_DPD_REQ_CODE_IDLE (0U << 30)
137 #define IO_DPD_REQ_CODE_OFF (1U << 30)
138 #define IO_DPD_REQ_CODE_ON (2U << 30)
139 #define IO_DPD_REQ_CODE_MASK (3U << 30)
141 #define IO_DPD_STATUS 0x1bc
142 #define IO_DPD2_REQ 0x1c0
143 #define IO_DPD2_STATUS 0x1c4
144 #define SEL_DPD_TIM 0x1c8
146 #define PMC_UTMIP_UHSIC_TRIGGERS 0x1ec
147 #define PMC_UTMIP_UHSIC_SAVED_STATE 0x1f0
149 #define PMC_UTMIP_TERM_PAD_CFG 0x1f8
150 #define PMC_UTMIP_UHSIC_SLEEP_CFG 0x1fc
151 #define PMC_UTMIP_UHSIC_FAKE 0x218
153 #define PMC_SCRATCH54 0x258
154 #define PMC_SCRATCH54_DATA_SHIFT 8
155 #define PMC_SCRATCH54_ADDR_SHIFT 0
157 #define PMC_SCRATCH55 0x25c
158 #define PMC_SCRATCH55_RESET_TEGRA BIT(31)
159 #define PMC_SCRATCH55_CNTRL_ID_SHIFT 27
160 #define PMC_SCRATCH55_PINMUX_SHIFT 24
161 #define PMC_SCRATCH55_16BITOP BIT(15)
162 #define PMC_SCRATCH55_CHECKSUM_SHIFT 16
163 #define PMC_SCRATCH55_I2CSLV1_SHIFT 0
165 #define PMC_UTMIP_UHSIC_LINE_WAKEUP 0x26c
167 #define PMC_UTMIP_BIAS_MASTER_CNTRL 0x270
168 #define PMC_UTMIP_MASTER_CONFIG 0x274
169 #define PMC_UTMIP_UHSIC2_TRIGGERS 0x27c
170 #define PMC_UTMIP_MASTER2_CONFIG 0x29c
172 #define GPU_RG_CNTRL 0x2d4
174 #define PMC_UTMIP_PAD_CFG0 0x4c0
175 #define PMC_UTMIP_UHSIC_SLEEP_CFG1 0x4d0
176 #define PMC_UTMIP_SLEEPWALK_P3 0x4e0
177 /* Tegra186 and later */
178 #define WAKE_AOWAKE_CNTRL(x) (0x000 + ((x) << 2))
179 #define WAKE_AOWAKE_CNTRL_LEVEL (1 << 3)
180 #define WAKE_AOWAKE_CNTRL_SR_CAPTURE_EN (1 << 1)
181 #define WAKE_AOWAKE_MASK_W(x) (0x180 + ((x) << 2))
182 #define WAKE_AOWAKE_MASK_R(x) (0x300 + ((x) << 2))
183 #define WAKE_AOWAKE_STATUS_W(x) (0x30c + ((x) << 2))
184 #define WAKE_AOWAKE_STATUS_R(x) (0x48c + ((x) << 2))
185 #define WAKE_AOWAKE_TIER0_ROUTING(x) (0x4b4 + ((x) << 2))
186 #define WAKE_AOWAKE_TIER1_ROUTING(x) (0x4c0 + ((x) << 2))
187 #define WAKE_AOWAKE_TIER2_ROUTING(x) (0x4cc + ((x) << 2))
188 #define WAKE_AOWAKE_SW_STATUS_W_0 0x49c
189 #define WAKE_AOWAKE_SW_STATUS(x) (0x4a0 + ((x) << 2))
190 #define WAKE_LATCH_SW 0x498
192 #define WAKE_AOWAKE_CTRL 0x4f4
193 #define WAKE_AOWAKE_CTRL_INTR_POLARITY BIT(0)
195 #define SW_WAKE_ID 83 /* wake83 */
198 #define TEGRA_SMC_PMC 0xc2fffe00
199 #define TEGRA_SMC_PMC_READ 0xaa
200 #define TEGRA_SMC_PMC_WRITE 0xbb
209 #define to_pmc_clk(_hw) container_of(_hw, struct pmc_clk, hw)
211 struct pmc_clk_gate {
217 #define to_pmc_clk_gate(_hw) container_of(_hw, struct pmc_clk_gate, hw)
219 struct pmc_clk_init_data {
221 const char *const *parents;
228 static const char * const clk_out1_parents[] = { "osc", "osc_div2",
229 "osc_div4", "extern1",
232 static const char * const clk_out2_parents[] = { "osc", "osc_div2",
233 "osc_div4", "extern2",
236 static const char * const clk_out3_parents[] = { "osc", "osc_div2",
237 "osc_div4", "extern3",
240 static const struct pmc_clk_init_data tegra_pmc_clks_data[] = {
242 .name = "pmc_clk_out_1",
243 .parents = clk_out1_parents,
244 .num_parents = ARRAY_SIZE(clk_out1_parents),
245 .clk_id = TEGRA_PMC_CLK_OUT_1,
250 .name = "pmc_clk_out_2",
251 .parents = clk_out2_parents,
252 .num_parents = ARRAY_SIZE(clk_out2_parents),
253 .clk_id = TEGRA_PMC_CLK_OUT_2,
255 .force_en_shift = 10,
258 .name = "pmc_clk_out_3",
259 .parents = clk_out3_parents,
260 .num_parents = ARRAY_SIZE(clk_out3_parents),
261 .clk_id = TEGRA_PMC_CLK_OUT_3,
263 .force_en_shift = 18,
267 struct tegra_powergate {
268 struct generic_pm_domain genpd;
269 struct tegra_pmc *pmc;
272 unsigned int num_clks;
273 unsigned long *clk_rates;
274 struct reset_control *reset;
277 struct tegra_io_pad_soc {
278 enum tegra_io_pad id;
280 unsigned int request;
282 unsigned int voltage;
286 struct tegra_pmc_regs {
287 unsigned int scratch0;
288 unsigned int rst_status;
289 unsigned int rst_source_shift;
290 unsigned int rst_source_mask;
291 unsigned int rst_level_shift;
292 unsigned int rst_level_mask;
295 struct tegra_wake_event {
300 unsigned int instance;
305 #define TEGRA_WAKE_SIMPLE(_name, _id) \
311 .instance = UINT_MAX, \
316 #define TEGRA_WAKE_IRQ(_name, _id, _irq) \
322 .instance = UINT_MAX, \
327 #define TEGRA_WAKE_GPIO(_name, _id, _instance, _pin) \
333 .instance = _instance, \
338 struct tegra_pmc_soc {
339 unsigned int num_powergates;
340 const char *const *powergates;
341 unsigned int num_cpu_powergates;
342 const u8 *cpu_powergates;
344 bool has_tsense_reset;
346 bool needs_mbist_war;
347 bool has_impl_33v_pwr;
350 const struct tegra_io_pad_soc *io_pads;
351 unsigned int num_io_pads;
353 const struct pinctrl_pin_desc *pin_descs;
354 unsigned int num_pin_descs;
356 const struct tegra_pmc_regs *regs;
357 void (*init)(struct tegra_pmc *pmc);
358 void (*setup_irq_polarity)(struct tegra_pmc *pmc,
359 struct device_node *np,
361 void (*set_wake_filters)(struct tegra_pmc *pmc);
362 int (*irq_set_wake)(struct irq_data *data, unsigned int on);
363 int (*irq_set_type)(struct irq_data *data, unsigned int type);
364 int (*powergate_set)(struct tegra_pmc *pmc, unsigned int id,
367 const char * const *reset_sources;
368 unsigned int num_reset_sources;
369 const char * const *reset_levels;
370 unsigned int num_reset_levels;
373 * These describe events that can wake the system from sleep (i.e.
374 * LP0 or SC7). Wakeup from other sleep states (such as LP1 or LP2)
375 * are dealt with in the LIC.
377 const struct tegra_wake_event *wake_events;
378 unsigned int num_wake_events;
379 unsigned int max_wake_events;
380 unsigned int max_wake_vectors;
382 const struct pmc_clk_init_data *pmc_clks_data;
383 unsigned int num_pmc_clks;
384 bool has_blink_output;
385 bool has_usb_sleepwalk;
386 bool supports_core_domain;
390 * struct tegra_pmc - NVIDIA Tegra PMC
391 * @dev: pointer to PMC device structure
392 * @base: pointer to I/O remapped register region
393 * @wake: pointer to I/O remapped region for WAKE registers
394 * @aotag: pointer to I/O remapped region for AOTAG registers
395 * @scratch: pointer to I/O remapped region for scratch registers
396 * @clk: pointer to pclk clock
397 * @soc: pointer to SoC data structure
398 * @tz_only: flag specifying if the PMC can only be accessed via TrustZone
399 * @debugfs: pointer to debugfs entry
400 * @rate: currently configured rate of pclk
401 * @suspend_mode: lowest suspend mode available
402 * @cpu_good_time: CPU power good time (in microseconds)
403 * @cpu_off_time: CPU power off time (in microsecends)
404 * @core_osc_time: core power good OSC time (in microseconds)
405 * @core_pmu_time: core power good PMU time (in microseconds)
406 * @core_off_time: core power off time (in microseconds)
407 * @corereq_high: core power request is active-high
408 * @sysclkreq_high: system clock request is active-high
409 * @combined_req: combined power request for CPU & core
410 * @cpu_pwr_good_en: CPU power good signal is enabled
411 * @lp0_vec_phys: physical base address of the LP0 warm boot code
412 * @lp0_vec_size: size of the LP0 warm boot code
413 * @powergates_available: Bitmap of available power gates
414 * @powergates_lock: mutex for power gate register access
415 * @pctl_dev: pin controller exposed by the PMC
416 * @domain: IRQ domain provided by the PMC
417 * @irq: chip implementation for the IRQ domain
418 * @clk_nb: pclk clock changes handler
419 * @core_domain_state_synced: flag marking the core domain's state as synced
420 * @core_domain_registered: flag marking the core domain as registered
421 * @wake_type_level_map: Bitmap indicating level type for non-dual edge wakes
422 * @wake_type_dual_edge_map: Bitmap indicating if a wake is dual-edge or not
423 * @wake_sw_status_map: Bitmap to hold raw status of wakes without mask
424 * @wake_cntrl_level_map: Bitmap to hold wake levels to be programmed in
425 * cntrl register associated with each wake during system suspend.
432 void __iomem *scratch;
434 struct dentry *debugfs;
436 const struct tegra_pmc_soc *soc;
441 enum tegra_suspend_mode suspend_mode;
450 bool cpu_pwr_good_en;
453 DECLARE_BITMAP(powergates_available, TEGRA_POWERGATE_MAX);
455 struct mutex powergates_lock;
457 struct pinctrl_dev *pctl_dev;
459 struct irq_domain *domain;
462 struct notifier_block clk_nb;
464 bool core_domain_state_synced;
465 bool core_domain_registered;
467 unsigned long *wake_type_level_map;
468 unsigned long *wake_type_dual_edge_map;
469 unsigned long *wake_sw_status_map;
470 unsigned long *wake_cntrl_level_map;
471 struct syscore_ops syscore;
474 static struct tegra_pmc *pmc = &(struct tegra_pmc) {
476 .suspend_mode = TEGRA_SUSPEND_NOT_READY,
479 static inline struct tegra_powergate *
480 to_powergate(struct generic_pm_domain *domain)
482 return container_of(domain, struct tegra_powergate, genpd);
485 static u32 tegra_pmc_readl(struct tegra_pmc *pmc, unsigned long offset)
487 struct arm_smccc_res res;
490 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_READ, offset, 0, 0,
494 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
497 pr_warn("%s(): SMC failed: %lu\n", __func__,
504 return readl(pmc->base + offset);
507 static void tegra_pmc_writel(struct tegra_pmc *pmc, u32 value,
508 unsigned long offset)
510 struct arm_smccc_res res;
513 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_WRITE, offset,
514 value, 0, 0, 0, 0, &res);
517 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
520 pr_warn("%s(): SMC failed: %lu\n", __func__,
524 writel(value, pmc->base + offset);
528 static u32 tegra_pmc_scratch_readl(struct tegra_pmc *pmc, unsigned long offset)
531 return tegra_pmc_readl(pmc, offset);
533 return readl(pmc->scratch + offset);
536 static void tegra_pmc_scratch_writel(struct tegra_pmc *pmc, u32 value,
537 unsigned long offset)
540 tegra_pmc_writel(pmc, value, offset);
542 writel(value, pmc->scratch + offset);
546 * TODO Figure out a way to call this with the struct tegra_pmc * passed in.
547 * This currently doesn't work because readx_poll_timeout() can only operate
548 * on functions that take a single argument.
550 static inline bool tegra_powergate_state(int id)
552 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
553 return (tegra_pmc_readl(pmc, GPU_RG_CNTRL) & 0x1) == 0;
555 return (tegra_pmc_readl(pmc, PWRGATE_STATUS) & BIT(id)) != 0;
558 static inline bool tegra_powergate_is_valid(struct tegra_pmc *pmc, int id)
560 return (pmc->soc && pmc->soc->powergates[id]);
563 static inline bool tegra_powergate_is_available(struct tegra_pmc *pmc, int id)
565 return test_bit(id, pmc->powergates_available);
568 static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name)
572 if (!pmc || !pmc->soc || !name)
575 for (i = 0; i < pmc->soc->num_powergates; i++) {
576 if (!tegra_powergate_is_valid(pmc, i))
579 if (!strcmp(name, pmc->soc->powergates[i]))
586 static int tegra20_powergate_set(struct tegra_pmc *pmc, unsigned int id,
589 unsigned int retries = 100;
594 * As per TRM documentation, the toggle command will be dropped by PMC
595 * if there is contention with a HW-initiated toggling (i.e. CPU core
596 * power-gated), the command should be retried in that case.
599 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
601 /* wait for PMC to execute the command */
602 ret = readx_poll_timeout(tegra_powergate_state, id, status,
603 status == new_state, 1, 10);
604 } while (ret == -ETIMEDOUT && retries--);
609 static inline bool tegra_powergate_toggle_ready(struct tegra_pmc *pmc)
611 return !(tegra_pmc_readl(pmc, PWRGATE_TOGGLE) & PWRGATE_TOGGLE_START);
614 static int tegra114_powergate_set(struct tegra_pmc *pmc, unsigned int id,
620 /* wait while PMC power gating is contended */
621 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
622 status == true, 1, 100);
626 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
628 /* wait for PMC to accept the command */
629 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
630 status == true, 1, 100);
634 /* wait for PMC to execute the command */
635 err = readx_poll_timeout(tegra_powergate_state, id, status,
636 status == new_state, 10, 100000);
644 * tegra_powergate_set() - set the state of a partition
645 * @pmc: power management controller
647 * @new_state: new state of the partition
649 static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id,
654 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
657 mutex_lock(&pmc->powergates_lock);
659 if (tegra_powergate_state(id) == new_state) {
660 mutex_unlock(&pmc->powergates_lock);
664 err = pmc->soc->powergate_set(pmc, id, new_state);
666 mutex_unlock(&pmc->powergates_lock);
671 static int __tegra_powergate_remove_clamping(struct tegra_pmc *pmc,
676 mutex_lock(&pmc->powergates_lock);
679 * On Tegra124 and later, the clamps for the GPU are controlled by a
680 * separate register (with different semantics).
682 if (id == TEGRA_POWERGATE_3D) {
683 if (pmc->soc->has_gpu_clamps) {
684 tegra_pmc_writel(pmc, 0, GPU_RG_CNTRL);
690 * Tegra 2 has a bug where PCIE and VDE clamping masks are
691 * swapped relatively to the partition ids
693 if (id == TEGRA_POWERGATE_VDEC)
694 mask = (1 << TEGRA_POWERGATE_PCIE);
695 else if (id == TEGRA_POWERGATE_PCIE)
696 mask = (1 << TEGRA_POWERGATE_VDEC);
700 tegra_pmc_writel(pmc, mask, REMOVE_CLAMPING);
703 mutex_unlock(&pmc->powergates_lock);
708 static int tegra_powergate_prepare_clocks(struct tegra_powergate *pg)
710 unsigned long safe_rate = 100 * 1000 * 1000;
714 for (i = 0; i < pg->num_clks; i++) {
715 pg->clk_rates[i] = clk_get_rate(pg->clks[i]);
717 if (!pg->clk_rates[i]) {
722 if (pg->clk_rates[i] <= safe_rate)
726 * We don't know whether voltage state is okay for the
727 * current clock rate, hence it's better to temporally
728 * switch clock to a safe rate which is suitable for
729 * all voltages, before enabling the clock.
731 err = clk_set_rate(pg->clks[i], safe_rate);
740 clk_set_rate(pg->clks[i], pg->clk_rates[i]);
745 static int tegra_powergate_unprepare_clocks(struct tegra_powergate *pg)
750 for (i = 0; i < pg->num_clks; i++) {
751 err = clk_set_rate(pg->clks[i], pg->clk_rates[i]);
759 static void tegra_powergate_disable_clocks(struct tegra_powergate *pg)
763 for (i = 0; i < pg->num_clks; i++)
764 clk_disable_unprepare(pg->clks[i]);
767 static int tegra_powergate_enable_clocks(struct tegra_powergate *pg)
772 for (i = 0; i < pg->num_clks; i++) {
773 err = clk_prepare_enable(pg->clks[i]);
782 clk_disable_unprepare(pg->clks[i]);
787 static int tegra_powergate_power_up(struct tegra_powergate *pg,
792 err = reset_control_assert(pg->reset);
796 usleep_range(10, 20);
798 err = tegra_powergate_set(pg->pmc, pg->id, true);
802 usleep_range(10, 20);
804 err = tegra_powergate_prepare_clocks(pg);
808 err = tegra_powergate_enable_clocks(pg);
812 usleep_range(10, 20);
814 err = __tegra_powergate_remove_clamping(pg->pmc, pg->id);
818 usleep_range(10, 20);
820 err = reset_control_deassert(pg->reset);
824 usleep_range(10, 20);
826 if (pg->pmc->soc->needs_mbist_war)
827 err = tegra210_clk_handle_mbist_war(pg->id);
832 tegra_powergate_disable_clocks(pg);
834 err = tegra_powergate_unprepare_clocks(pg);
841 tegra_powergate_disable_clocks(pg);
842 usleep_range(10, 20);
845 tegra_powergate_unprepare_clocks(pg);
848 tegra_powergate_set(pg->pmc, pg->id, false);
853 static int tegra_powergate_power_down(struct tegra_powergate *pg)
857 err = tegra_powergate_prepare_clocks(pg);
861 err = tegra_powergate_enable_clocks(pg);
865 usleep_range(10, 20);
867 err = reset_control_assert(pg->reset);
871 usleep_range(10, 20);
873 tegra_powergate_disable_clocks(pg);
875 usleep_range(10, 20);
877 err = tegra_powergate_set(pg->pmc, pg->id, false);
881 err = tegra_powergate_unprepare_clocks(pg);
888 tegra_powergate_enable_clocks(pg);
889 usleep_range(10, 20);
890 reset_control_deassert(pg->reset);
891 usleep_range(10, 20);
894 tegra_powergate_disable_clocks(pg);
897 tegra_powergate_unprepare_clocks(pg);
902 static int tegra_genpd_power_on(struct generic_pm_domain *domain)
904 struct tegra_powergate *pg = to_powergate(domain);
905 struct device *dev = pg->pmc->dev;
908 err = tegra_powergate_power_up(pg, true);
910 dev_err(dev, "failed to turn on PM domain %s: %d\n",
911 pg->genpd.name, err);
915 reset_control_release(pg->reset);
921 static int tegra_genpd_power_off(struct generic_pm_domain *domain)
923 struct tegra_powergate *pg = to_powergate(domain);
924 struct device *dev = pg->pmc->dev;
927 err = reset_control_acquire(pg->reset);
929 dev_err(dev, "failed to acquire resets for PM domain %s: %d\n",
930 pg->genpd.name, err);
934 err = tegra_powergate_power_down(pg);
936 dev_err(dev, "failed to turn off PM domain %s: %d\n",
937 pg->genpd.name, err);
938 reset_control_release(pg->reset);
945 * tegra_powergate_power_on() - power on partition
948 int tegra_powergate_power_on(unsigned int id)
950 if (!tegra_powergate_is_available(pmc, id))
953 return tegra_powergate_set(pmc, id, true);
955 EXPORT_SYMBOL(tegra_powergate_power_on);
958 * tegra_powergate_power_off() - power off partition
961 int tegra_powergate_power_off(unsigned int id)
963 if (!tegra_powergate_is_available(pmc, id))
966 return tegra_powergate_set(pmc, id, false);
968 EXPORT_SYMBOL(tegra_powergate_power_off);
971 * tegra_powergate_is_powered() - check if partition is powered
972 * @pmc: power management controller
975 static int tegra_powergate_is_powered(struct tegra_pmc *pmc, unsigned int id)
977 if (!tegra_powergate_is_valid(pmc, id))
980 return tegra_powergate_state(id);
984 * tegra_powergate_remove_clamping() - remove power clamps for partition
987 int tegra_powergate_remove_clamping(unsigned int id)
989 if (!tegra_powergate_is_available(pmc, id))
992 return __tegra_powergate_remove_clamping(pmc, id);
994 EXPORT_SYMBOL(tegra_powergate_remove_clamping);
997 * tegra_powergate_sequence_power_up() - power up partition
999 * @clk: clock for partition
1000 * @rst: reset for partition
1002 * Must be called with clk disabled, and returns with clk enabled.
1004 int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
1005 struct reset_control *rst)
1007 struct tegra_powergate *pg;
1010 if (!tegra_powergate_is_available(pmc, id))
1013 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1017 pg->clk_rates = kzalloc(sizeof(*pg->clk_rates), GFP_KERNEL);
1018 if (!pg->clk_rates) {
1029 err = tegra_powergate_power_up(pg, false);
1031 dev_err(pmc->dev, "failed to turn on partition %d: %d\n", id,
1034 kfree(pg->clk_rates);
1039 EXPORT_SYMBOL(tegra_powergate_sequence_power_up);
1042 * tegra_get_cpu_powergate_id() - convert from CPU ID to partition ID
1043 * @pmc: power management controller
1044 * @cpuid: CPU partition ID
1046 * Returns the partition ID corresponding to the CPU partition ID or a
1047 * negative error code on failure.
1049 static int tegra_get_cpu_powergate_id(struct tegra_pmc *pmc,
1052 if (pmc->soc && cpuid < pmc->soc->num_cpu_powergates)
1053 return pmc->soc->cpu_powergates[cpuid];
1059 * tegra_pmc_cpu_is_powered() - check if CPU partition is powered
1060 * @cpuid: CPU partition ID
1062 bool tegra_pmc_cpu_is_powered(unsigned int cpuid)
1066 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1070 return tegra_powergate_is_powered(pmc, id);
1074 * tegra_pmc_cpu_power_on() - power on CPU partition
1075 * @cpuid: CPU partition ID
1077 int tegra_pmc_cpu_power_on(unsigned int cpuid)
1081 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1085 return tegra_powergate_set(pmc, id, true);
1089 * tegra_pmc_cpu_remove_clamping() - remove power clamps for CPU partition
1090 * @cpuid: CPU partition ID
1092 int tegra_pmc_cpu_remove_clamping(unsigned int cpuid)
1096 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1100 return tegra_powergate_remove_clamping(id);
1103 static void tegra_pmc_program_reboot_reason(const char *cmd)
1107 value = tegra_pmc_scratch_readl(pmc, pmc->soc->regs->scratch0);
1108 value &= ~PMC_SCRATCH0_MODE_MASK;
1111 if (strcmp(cmd, "recovery") == 0)
1112 value |= PMC_SCRATCH0_MODE_RECOVERY;
1114 if (strcmp(cmd, "bootloader") == 0)
1115 value |= PMC_SCRATCH0_MODE_BOOTLOADER;
1117 if (strcmp(cmd, "forced-recovery") == 0)
1118 value |= PMC_SCRATCH0_MODE_RCM;
1121 tegra_pmc_scratch_writel(pmc, value, pmc->soc->regs->scratch0);
1124 static int tegra_pmc_reboot_notify(struct notifier_block *this,
1125 unsigned long action, void *data)
1127 if (action == SYS_RESTART)
1128 tegra_pmc_program_reboot_reason(data);
1133 static struct notifier_block tegra_pmc_reboot_notifier = {
1134 .notifier_call = tegra_pmc_reboot_notify,
1137 static void tegra_pmc_restart(void)
1141 /* reset everything but PMC_SCRATCH0 and PMC_RST_STATUS */
1142 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1143 value |= PMC_CNTRL_MAIN_RST;
1144 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1147 static int tegra_pmc_restart_handler(struct sys_off_data *data)
1149 tegra_pmc_restart();
1154 static int tegra_pmc_power_off_handler(struct sys_off_data *data)
1157 * Reboot Nexus 7 into special bootloader mode if USB cable is
1158 * connected in order to display battery status and power off.
1160 if (of_machine_is_compatible("asus,grouper") &&
1161 power_supply_is_system_supplied()) {
1162 const u32 go_to_charger_mode = 0xa5a55a5a;
1164 tegra_pmc_writel(pmc, go_to_charger_mode, PMC_SCRATCH37);
1165 tegra_pmc_restart();
1171 static int powergate_show(struct seq_file *s, void *data)
1176 seq_printf(s, " powergate powered\n");
1177 seq_printf(s, "------------------\n");
1179 for (i = 0; i < pmc->soc->num_powergates; i++) {
1180 status = tegra_powergate_is_powered(pmc, i);
1184 seq_printf(s, " %9s %7s\n", pmc->soc->powergates[i],
1185 status ? "yes" : "no");
1191 DEFINE_SHOW_ATTRIBUTE(powergate);
1193 static int tegra_powergate_debugfs_init(void)
1195 pmc->debugfs = debugfs_create_file("powergate", S_IRUGO, NULL, NULL,
1203 static int tegra_powergate_of_get_clks(struct tegra_powergate *pg,
1204 struct device_node *np)
1207 unsigned int i, count;
1210 count = of_clk_get_parent_count(np);
1214 pg->clks = kcalloc(count, sizeof(clk), GFP_KERNEL);
1218 pg->clk_rates = kcalloc(count, sizeof(*pg->clk_rates), GFP_KERNEL);
1219 if (!pg->clk_rates) {
1224 for (i = 0; i < count; i++) {
1225 pg->clks[i] = of_clk_get(np, i);
1226 if (IS_ERR(pg->clks[i])) {
1227 err = PTR_ERR(pg->clks[i]);
1232 pg->num_clks = count;
1238 clk_put(pg->clks[i]);
1240 kfree(pg->clk_rates);
1246 static int tegra_powergate_of_get_resets(struct tegra_powergate *pg,
1247 struct device_node *np, bool off)
1249 struct device *dev = pg->pmc->dev;
1252 pg->reset = of_reset_control_array_get_exclusive_released(np);
1253 if (IS_ERR(pg->reset)) {
1254 err = PTR_ERR(pg->reset);
1255 dev_err(dev, "failed to get device resets: %d\n", err);
1259 err = reset_control_acquire(pg->reset);
1261 pr_err("failed to acquire resets: %d\n", err);
1266 err = reset_control_assert(pg->reset);
1268 err = reset_control_deassert(pg->reset);
1272 reset_control_release(pg->reset);
1277 reset_control_release(pg->reset);
1278 reset_control_put(pg->reset);
1284 static int tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
1286 struct device *dev = pmc->dev;
1287 struct tegra_powergate *pg;
1291 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1295 id = tegra_powergate_lookup(pmc, np->name);
1297 dev_err(dev, "powergate lookup failed for %pOFn: %d\n", np, id);
1303 * Clear the bit for this powergate so it cannot be managed
1304 * directly via the legacy APIs for controlling powergates.
1306 clear_bit(id, pmc->powergates_available);
1309 pg->genpd.name = np->name;
1310 pg->genpd.power_off = tegra_genpd_power_off;
1311 pg->genpd.power_on = tegra_genpd_power_on;
1314 off = !tegra_powergate_is_powered(pmc, pg->id);
1316 err = tegra_powergate_of_get_clks(pg, np);
1318 dev_err(dev, "failed to get clocks for %pOFn: %d\n", np, err);
1322 err = tegra_powergate_of_get_resets(pg, np, off);
1324 dev_err(dev, "failed to get resets for %pOFn: %d\n", np, err);
1328 if (!IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
1330 WARN_ON(tegra_powergate_power_up(pg, true));
1335 err = pm_genpd_init(&pg->genpd, NULL, off);
1337 dev_err(dev, "failed to initialise PM domain %pOFn: %d\n", np,
1342 err = of_genpd_add_provider_simple(np, &pg->genpd);
1344 dev_err(dev, "failed to add PM domain provider for %pOFn: %d\n",
1349 dev_dbg(dev, "added PM domain %s\n", pg->genpd.name);
1354 pm_genpd_remove(&pg->genpd);
1357 reset_control_put(pg->reset);
1360 while (pg->num_clks--)
1361 clk_put(pg->clks[pg->num_clks]);
1366 set_bit(id, pmc->powergates_available);
1374 bool tegra_pmc_core_domain_state_synced(void)
1376 return pmc->core_domain_state_synced;
1380 tegra_pmc_core_pd_set_performance_state(struct generic_pm_domain *genpd,
1383 struct dev_pm_opp *opp;
1386 opp = dev_pm_opp_find_level_ceil(&genpd->dev, &level);
1388 dev_err(&genpd->dev, "failed to find OPP for level %u: %pe\n",
1390 return PTR_ERR(opp);
1393 mutex_lock(&pmc->powergates_lock);
1394 err = dev_pm_opp_set_opp(pmc->dev, opp);
1395 mutex_unlock(&pmc->powergates_lock);
1397 dev_pm_opp_put(opp);
1400 dev_err(&genpd->dev, "failed to set voltage to %duV: %d\n",
1409 tegra_pmc_core_pd_opp_to_performance_state(struct generic_pm_domain *genpd,
1410 struct dev_pm_opp *opp)
1412 return dev_pm_opp_get_level(opp);
1415 static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
1417 struct generic_pm_domain *genpd;
1418 const char *rname[] = { "core", NULL};
1421 genpd = devm_kzalloc(pmc->dev, sizeof(*genpd), GFP_KERNEL);
1425 genpd->name = "core";
1426 genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state;
1427 genpd->opp_to_performance_state = tegra_pmc_core_pd_opp_to_performance_state;
1429 err = devm_pm_opp_set_regulators(pmc->dev, rname);
1431 return dev_err_probe(pmc->dev, err,
1432 "failed to set core OPP regulator\n");
1434 err = pm_genpd_init(genpd, NULL, false);
1436 dev_err(pmc->dev, "failed to init core genpd: %d\n", err);
1440 err = of_genpd_add_provider_simple(np, genpd);
1442 dev_err(pmc->dev, "failed to add core genpd: %d\n", err);
1446 pmc->core_domain_registered = true;
1451 pm_genpd_remove(genpd);
1456 static int tegra_powergate_init(struct tegra_pmc *pmc,
1457 struct device_node *parent)
1459 struct of_phandle_args child_args, parent_args;
1460 struct device_node *np, *child;
1464 * Core power domain is the parent of powergate domains, hence it
1465 * should be registered first.
1467 np = of_get_child_by_name(parent, "core-domain");
1469 err = tegra_pmc_core_pd_add(pmc, np);
1475 np = of_get_child_by_name(parent, "powergates");
1479 for_each_child_of_node(np, child) {
1480 err = tegra_powergate_add(pmc, child);
1486 if (of_parse_phandle_with_args(child, "power-domains",
1487 "#power-domain-cells",
1491 child_args.np = child;
1492 child_args.args_count = 0;
1494 err = of_genpd_add_subdomain(&parent_args, &child_args);
1495 of_node_put(parent_args.np);
1507 static void tegra_powergate_remove(struct generic_pm_domain *genpd)
1509 struct tegra_powergate *pg = to_powergate(genpd);
1511 reset_control_put(pg->reset);
1513 while (pg->num_clks--)
1514 clk_put(pg->clks[pg->num_clks]);
1518 set_bit(pg->id, pmc->powergates_available);
1523 static void tegra_powergate_remove_all(struct device_node *parent)
1525 struct generic_pm_domain *genpd;
1526 struct device_node *np, *child;
1528 np = of_get_child_by_name(parent, "powergates");
1532 for_each_child_of_node(np, child) {
1533 of_genpd_del_provider(child);
1535 genpd = of_genpd_remove_last(child);
1539 tegra_powergate_remove(genpd);
1544 np = of_get_child_by_name(parent, "core-domain");
1546 of_genpd_del_provider(np);
1547 of_genpd_remove_last(np);
1551 static const struct tegra_io_pad_soc *
1552 tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id)
1556 for (i = 0; i < pmc->soc->num_io_pads; i++)
1557 if (pmc->soc->io_pads[i].id == id)
1558 return &pmc->soc->io_pads[i];
1563 static int tegra_io_pad_prepare(struct tegra_pmc *pmc,
1564 const struct tegra_io_pad_soc *pad,
1565 unsigned long *request,
1566 unsigned long *status,
1569 unsigned long rate, value;
1571 if (pad->dpd == UINT_MAX)
1574 *request = pad->request;
1575 *status = pad->status;
1576 *mask = BIT(pad->dpd);
1581 dev_err(pmc->dev, "failed to get clock rate\n");
1585 tegra_pmc_writel(pmc, DPD_SAMPLE_ENABLE, DPD_SAMPLE);
1587 /* must be at least 200 ns, in APB (PCLK) clock cycles */
1588 value = DIV_ROUND_UP(1000000000, rate);
1589 value = DIV_ROUND_UP(200, value);
1590 tegra_pmc_writel(pmc, value, SEL_DPD_TIM);
1596 static int tegra_io_pad_poll(struct tegra_pmc *pmc, unsigned long offset,
1597 u32 mask, u32 val, unsigned long timeout)
1601 timeout = jiffies + msecs_to_jiffies(timeout);
1603 while (time_after(timeout, jiffies)) {
1604 value = tegra_pmc_readl(pmc, offset);
1605 if ((value & mask) == val)
1608 usleep_range(250, 1000);
1614 static void tegra_io_pad_unprepare(struct tegra_pmc *pmc)
1617 tegra_pmc_writel(pmc, DPD_SAMPLE_DISABLE, DPD_SAMPLE);
1621 * tegra_io_pad_power_enable() - enable power to I/O pad
1622 * @id: Tegra I/O pad ID for which to enable power
1624 * Returns: 0 on success or a negative error code on failure.
1626 int tegra_io_pad_power_enable(enum tegra_io_pad id)
1628 const struct tegra_io_pad_soc *pad;
1629 unsigned long request, status;
1633 pad = tegra_io_pad_find(pmc, id);
1635 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1639 mutex_lock(&pmc->powergates_lock);
1641 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1643 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1647 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_OFF | mask, request);
1649 err = tegra_io_pad_poll(pmc, status, mask, 0, 250);
1651 dev_err(pmc->dev, "failed to enable I/O pad: %d\n", err);
1655 tegra_io_pad_unprepare(pmc);
1658 mutex_unlock(&pmc->powergates_lock);
1661 EXPORT_SYMBOL(tegra_io_pad_power_enable);
1664 * tegra_io_pad_power_disable() - disable power to I/O pad
1665 * @id: Tegra I/O pad ID for which to disable power
1667 * Returns: 0 on success or a negative error code on failure.
1669 int tegra_io_pad_power_disable(enum tegra_io_pad id)
1671 const struct tegra_io_pad_soc *pad;
1672 unsigned long request, status;
1676 pad = tegra_io_pad_find(pmc, id);
1678 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1682 mutex_lock(&pmc->powergates_lock);
1684 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1686 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1690 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_ON | mask, request);
1692 err = tegra_io_pad_poll(pmc, status, mask, mask, 250);
1694 dev_err(pmc->dev, "failed to disable I/O pad: %d\n", err);
1698 tegra_io_pad_unprepare(pmc);
1701 mutex_unlock(&pmc->powergates_lock);
1704 EXPORT_SYMBOL(tegra_io_pad_power_disable);
1706 static int tegra_io_pad_is_powered(struct tegra_pmc *pmc, enum tegra_io_pad id)
1708 const struct tegra_io_pad_soc *pad;
1709 unsigned long status;
1712 pad = tegra_io_pad_find(pmc, id);
1714 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1718 if (pad->dpd == UINT_MAX)
1721 status = pad->status;
1722 mask = BIT(pad->dpd);
1724 value = tegra_pmc_readl(pmc, status);
1726 return !(value & mask);
1729 static int tegra_io_pad_set_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id,
1732 const struct tegra_io_pad_soc *pad;
1735 pad = tegra_io_pad_find(pmc, id);
1739 if (pad->voltage == UINT_MAX)
1742 mutex_lock(&pmc->powergates_lock);
1744 if (pmc->soc->has_impl_33v_pwr) {
1745 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1747 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1748 value &= ~BIT(pad->voltage);
1750 value |= BIT(pad->voltage);
1752 tegra_pmc_writel(pmc, value, PMC_IMPL_E_33V_PWR);
1754 /* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
1755 value = tegra_pmc_readl(pmc, PMC_PWR_DET);
1756 value |= BIT(pad->voltage);
1757 tegra_pmc_writel(pmc, value, PMC_PWR_DET);
1759 /* update I/O voltage */
1760 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1762 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1763 value &= ~BIT(pad->voltage);
1765 value |= BIT(pad->voltage);
1767 tegra_pmc_writel(pmc, value, PMC_PWR_DET_VALUE);
1770 mutex_unlock(&pmc->powergates_lock);
1772 usleep_range(100, 250);
1777 static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id)
1779 const struct tegra_io_pad_soc *pad;
1782 pad = tegra_io_pad_find(pmc, id);
1786 if (pad->voltage == UINT_MAX)
1789 if (pmc->soc->has_impl_33v_pwr)
1790 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1792 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1794 if ((value & BIT(pad->voltage)) == 0)
1795 return TEGRA_IO_PAD_VOLTAGE_1V8;
1797 return TEGRA_IO_PAD_VOLTAGE_3V3;
1801 * tegra_io_rail_power_on() - enable power to I/O rail
1802 * @id: Tegra I/O pad ID for which to enable power
1804 * See also: tegra_io_pad_power_enable()
1806 int tegra_io_rail_power_on(unsigned int id)
1808 return tegra_io_pad_power_enable(id);
1810 EXPORT_SYMBOL(tegra_io_rail_power_on);
1813 * tegra_io_rail_power_off() - disable power to I/O rail
1814 * @id: Tegra I/O pad ID for which to disable power
1816 * See also: tegra_io_pad_power_disable()
1818 int tegra_io_rail_power_off(unsigned int id)
1820 return tegra_io_pad_power_disable(id);
1822 EXPORT_SYMBOL(tegra_io_rail_power_off);
1824 #ifdef CONFIG_PM_SLEEP
1825 enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
1827 return pmc->suspend_mode;
1830 void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode)
1832 if (mode < TEGRA_SUSPEND_NONE || mode >= TEGRA_MAX_SUSPEND_MODE)
1835 pmc->suspend_mode = mode;
1838 void tegra_pmc_enter_suspend_mode(enum tegra_suspend_mode mode)
1840 unsigned long long rate = 0;
1845 case TEGRA_SUSPEND_LP1:
1849 case TEGRA_SUSPEND_LP2:
1857 if (WARN_ON_ONCE(rate == 0))
1860 ticks = pmc->cpu_good_time * rate + USEC_PER_SEC - 1;
1861 do_div(ticks, USEC_PER_SEC);
1862 tegra_pmc_writel(pmc, ticks, PMC_CPUPWRGOOD_TIMER);
1864 ticks = pmc->cpu_off_time * rate + USEC_PER_SEC - 1;
1865 do_div(ticks, USEC_PER_SEC);
1866 tegra_pmc_writel(pmc, ticks, PMC_CPUPWROFF_TIMER);
1868 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1869 value &= ~PMC_CNTRL_SIDE_EFFECT_LP0;
1870 value |= PMC_CNTRL_CPU_PWRREQ_OE;
1871 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1875 static int tegra_pmc_parse_dt(struct tegra_pmc *pmc, struct device_node *np)
1877 u32 value, values[2];
1879 if (of_property_read_u32(np, "nvidia,suspend-mode", &value)) {
1880 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1884 pmc->suspend_mode = TEGRA_SUSPEND_LP0;
1888 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1892 pmc->suspend_mode = TEGRA_SUSPEND_LP2;
1896 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1901 pmc->suspend_mode = tegra_pm_validate_suspend_mode(pmc->suspend_mode);
1903 if (of_property_read_u32(np, "nvidia,cpu-pwr-good-time", &value))
1904 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1906 pmc->cpu_good_time = value;
1908 if (of_property_read_u32(np, "nvidia,cpu-pwr-off-time", &value))
1909 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1911 pmc->cpu_off_time = value;
1913 if (of_property_read_u32_array(np, "nvidia,core-pwr-good-time",
1914 values, ARRAY_SIZE(values)))
1915 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1917 pmc->core_osc_time = values[0];
1918 pmc->core_pmu_time = values[1];
1920 if (of_property_read_u32(np, "nvidia,core-pwr-off-time", &value))
1921 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1923 pmc->core_off_time = value;
1925 pmc->corereq_high = of_property_read_bool(np,
1926 "nvidia,core-power-req-active-high");
1928 pmc->sysclkreq_high = of_property_read_bool(np,
1929 "nvidia,sys-clock-req-active-high");
1931 pmc->combined_req = of_property_read_bool(np,
1932 "nvidia,combined-power-req");
1934 pmc->cpu_pwr_good_en = of_property_read_bool(np,
1935 "nvidia,cpu-pwr-good-en");
1937 if (of_property_read_u32_array(np, "nvidia,lp0-vec", values,
1938 ARRAY_SIZE(values)))
1939 if (pmc->suspend_mode == TEGRA_SUSPEND_LP0)
1940 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1942 pmc->lp0_vec_phys = values[0];
1943 pmc->lp0_vec_size = values[1];
1948 static int tegra_pmc_init(struct tegra_pmc *pmc)
1950 if (pmc->soc->max_wake_events > 0) {
1951 pmc->wake_type_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1952 if (!pmc->wake_type_level_map)
1955 pmc->wake_type_dual_edge_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1956 if (!pmc->wake_type_dual_edge_map)
1959 pmc->wake_sw_status_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1960 if (!pmc->wake_sw_status_map)
1963 pmc->wake_cntrl_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1964 if (!pmc->wake_cntrl_level_map)
1969 pmc->soc->init(pmc);
1974 static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc)
1976 static const char disabled[] = "emergency thermal reset disabled";
1977 u32 pmu_addr, ctrl_id, reg_addr, reg_data, pinmux;
1978 struct device *dev = pmc->dev;
1979 struct device_node *np;
1980 u32 value, checksum;
1982 if (!pmc->soc->has_tsense_reset)
1985 np = of_get_child_by_name(pmc->dev->of_node, "i2c-thermtrip");
1987 dev_warn(dev, "i2c-thermtrip node not found, %s.\n", disabled);
1991 if (of_property_read_u32(np, "nvidia,i2c-controller-id", &ctrl_id)) {
1992 dev_err(dev, "I2C controller ID missing, %s.\n", disabled);
1996 if (of_property_read_u32(np, "nvidia,bus-addr", &pmu_addr)) {
1997 dev_err(dev, "nvidia,bus-addr missing, %s.\n", disabled);
2001 if (of_property_read_u32(np, "nvidia,reg-addr", ®_addr)) {
2002 dev_err(dev, "nvidia,reg-addr missing, %s.\n", disabled);
2006 if (of_property_read_u32(np, "nvidia,reg-data", ®_data)) {
2007 dev_err(dev, "nvidia,reg-data missing, %s.\n", disabled);
2011 if (of_property_read_u32(np, "nvidia,pinmux-id", &pinmux))
2014 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
2015 value |= PMC_SENSOR_CTRL_SCRATCH_WRITE;
2016 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
2018 value = (reg_data << PMC_SCRATCH54_DATA_SHIFT) |
2019 (reg_addr << PMC_SCRATCH54_ADDR_SHIFT);
2020 tegra_pmc_writel(pmc, value, PMC_SCRATCH54);
2022 value = PMC_SCRATCH55_RESET_TEGRA;
2023 value |= ctrl_id << PMC_SCRATCH55_CNTRL_ID_SHIFT;
2024 value |= pinmux << PMC_SCRATCH55_PINMUX_SHIFT;
2025 value |= pmu_addr << PMC_SCRATCH55_I2CSLV1_SHIFT;
2028 * Calculate checksum of SCRATCH54, SCRATCH55 fields. Bits 23:16 will
2029 * contain the checksum and are currently zero, so they are not added.
2031 checksum = reg_addr + reg_data + (value & 0xff) + ((value >> 8) & 0xff)
2032 + ((value >> 24) & 0xff);
2034 checksum = 0x100 - checksum;
2036 value |= checksum << PMC_SCRATCH55_CHECKSUM_SHIFT;
2038 tegra_pmc_writel(pmc, value, PMC_SCRATCH55);
2040 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
2041 value |= PMC_SENSOR_CTRL_ENABLE_RST;
2042 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
2044 dev_info(pmc->dev, "emergency thermal reset enabled\n");
2050 static int tegra_io_pad_pinctrl_get_groups_count(struct pinctrl_dev *pctl_dev)
2052 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2054 return pmc->soc->num_io_pads;
2057 static const char *tegra_io_pad_pinctrl_get_group_name(struct pinctrl_dev *pctl,
2060 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl);
2062 return pmc->soc->io_pads[group].name;
2065 static int tegra_io_pad_pinctrl_get_group_pins(struct pinctrl_dev *pctl_dev,
2067 const unsigned int **pins,
2068 unsigned int *num_pins)
2070 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2072 *pins = &pmc->soc->io_pads[group].id;
2078 static const struct pinctrl_ops tegra_io_pad_pinctrl_ops = {
2079 .get_groups_count = tegra_io_pad_pinctrl_get_groups_count,
2080 .get_group_name = tegra_io_pad_pinctrl_get_group_name,
2081 .get_group_pins = tegra_io_pad_pinctrl_get_group_pins,
2082 .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
2083 .dt_free_map = pinconf_generic_dt_free_map,
2086 static int tegra_io_pad_pinconf_get(struct pinctrl_dev *pctl_dev,
2087 unsigned int pin, unsigned long *config)
2089 enum pin_config_param param = pinconf_to_config_param(*config);
2090 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2091 const struct tegra_io_pad_soc *pad;
2095 pad = tegra_io_pad_find(pmc, pin);
2100 case PIN_CONFIG_POWER_SOURCE:
2101 ret = tegra_io_pad_get_voltage(pmc, pad->id);
2108 case PIN_CONFIG_MODE_LOW_POWER:
2109 ret = tegra_io_pad_is_powered(pmc, pad->id);
2120 *config = pinconf_to_config_packed(param, arg);
2125 static int tegra_io_pad_pinconf_set(struct pinctrl_dev *pctl_dev,
2126 unsigned int pin, unsigned long *configs,
2127 unsigned int num_configs)
2129 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2130 const struct tegra_io_pad_soc *pad;
2131 enum pin_config_param param;
2136 pad = tegra_io_pad_find(pmc, pin);
2140 for (i = 0; i < num_configs; ++i) {
2141 param = pinconf_to_config_param(configs[i]);
2142 arg = pinconf_to_config_argument(configs[i]);
2145 case PIN_CONFIG_MODE_LOW_POWER:
2147 err = tegra_io_pad_power_disable(pad->id);
2149 err = tegra_io_pad_power_enable(pad->id);
2153 case PIN_CONFIG_POWER_SOURCE:
2154 if (arg != TEGRA_IO_PAD_VOLTAGE_1V8 &&
2155 arg != TEGRA_IO_PAD_VOLTAGE_3V3)
2157 err = tegra_io_pad_set_voltage(pmc, pad->id, arg);
2169 static const struct pinconf_ops tegra_io_pad_pinconf_ops = {
2170 .pin_config_get = tegra_io_pad_pinconf_get,
2171 .pin_config_set = tegra_io_pad_pinconf_set,
2175 static struct pinctrl_desc tegra_pmc_pctl_desc = {
2176 .pctlops = &tegra_io_pad_pinctrl_ops,
2177 .confops = &tegra_io_pad_pinconf_ops,
2180 static int tegra_pmc_pinctrl_init(struct tegra_pmc *pmc)
2184 if (!pmc->soc->num_pin_descs)
2187 tegra_pmc_pctl_desc.name = dev_name(pmc->dev);
2188 tegra_pmc_pctl_desc.pins = pmc->soc->pin_descs;
2189 tegra_pmc_pctl_desc.npins = pmc->soc->num_pin_descs;
2191 pmc->pctl_dev = devm_pinctrl_register(pmc->dev, &tegra_pmc_pctl_desc,
2193 if (IS_ERR(pmc->pctl_dev)) {
2194 err = PTR_ERR(pmc->pctl_dev);
2195 dev_err(pmc->dev, "failed to register pin controller: %d\n",
2203 static ssize_t reset_reason_show(struct device *dev,
2204 struct device_attribute *attr, char *buf)
2208 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2209 value &= pmc->soc->regs->rst_source_mask;
2210 value >>= pmc->soc->regs->rst_source_shift;
2212 if (WARN_ON(value >= pmc->soc->num_reset_sources))
2213 return sprintf(buf, "%s\n", "UNKNOWN");
2215 return sprintf(buf, "%s\n", pmc->soc->reset_sources[value]);
2218 static DEVICE_ATTR_RO(reset_reason);
2220 static ssize_t reset_level_show(struct device *dev,
2221 struct device_attribute *attr, char *buf)
2225 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2226 value &= pmc->soc->regs->rst_level_mask;
2227 value >>= pmc->soc->regs->rst_level_shift;
2229 if (WARN_ON(value >= pmc->soc->num_reset_levels))
2230 return sprintf(buf, "%s\n", "UNKNOWN");
2232 return sprintf(buf, "%s\n", pmc->soc->reset_levels[value]);
2235 static DEVICE_ATTR_RO(reset_level);
2237 static void tegra_pmc_reset_sysfs_init(struct tegra_pmc *pmc)
2239 struct device *dev = pmc->dev;
2242 if (pmc->soc->reset_sources) {
2243 err = device_create_file(dev, &dev_attr_reset_reason);
2246 "failed to create attr \"reset_reason\": %d\n",
2250 if (pmc->soc->reset_levels) {
2251 err = device_create_file(dev, &dev_attr_reset_level);
2254 "failed to create attr \"reset_level\": %d\n",
2259 static int tegra_pmc_irq_translate(struct irq_domain *domain,
2260 struct irq_fwspec *fwspec,
2261 unsigned long *hwirq,
2264 if (WARN_ON(fwspec->param_count < 2))
2267 *hwirq = fwspec->param[0];
2268 *type = fwspec->param[1];
2273 static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
2274 unsigned int num_irqs, void *data)
2276 struct tegra_pmc *pmc = domain->host_data;
2277 const struct tegra_pmc_soc *soc = pmc->soc;
2278 struct irq_fwspec *fwspec = data;
2282 if (WARN_ON(num_irqs > 1))
2285 for (i = 0; i < soc->num_wake_events; i++) {
2286 const struct tegra_wake_event *event = &soc->wake_events[i];
2288 /* IRQ and simple wake events */
2289 if (fwspec->param_count == 2) {
2290 struct irq_fwspec spec;
2292 if (event->id != fwspec->param[0])
2295 err = irq_domain_set_hwirq_and_chip(domain, virq,
2301 /* simple hierarchies stop at the PMC level */
2302 if (event->irq == 0) {
2303 err = irq_domain_disconnect_hierarchy(domain->parent, virq);
2307 spec.fwnode = &pmc->dev->of_node->fwnode;
2308 spec.param_count = 3;
2309 spec.param[0] = GIC_SPI;
2310 spec.param[1] = event->irq;
2311 spec.param[2] = fwspec->param[1];
2313 err = irq_domain_alloc_irqs_parent(domain, virq,
2319 /* GPIO wake events */
2320 if (fwspec->param_count == 3) {
2321 if (event->gpio.instance != fwspec->param[0] ||
2322 event->gpio.pin != fwspec->param[1])
2325 err = irq_domain_set_hwirq_and_chip(domain, virq,
2329 /* GPIO hierarchies stop at the PMC level */
2330 if (!err && domain->parent)
2331 err = irq_domain_disconnect_hierarchy(domain->parent,
2337 /* If there is no wake-up event, there is no PMC mapping */
2338 if (i == soc->num_wake_events)
2339 err = irq_domain_disconnect_hierarchy(domain, virq);
2344 static const struct irq_domain_ops tegra_pmc_irq_domain_ops = {
2345 .translate = tegra_pmc_irq_translate,
2346 .alloc = tegra_pmc_irq_alloc,
2349 static int tegra210_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2351 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2352 unsigned int offset, bit;
2355 offset = data->hwirq / 32;
2356 bit = data->hwirq % 32;
2358 /* clear wake status */
2359 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE_STATUS);
2360 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE2_STATUS);
2362 tegra_pmc_writel(pmc, 0, PMC_WAKE_STATUS);
2363 tegra_pmc_writel(pmc, 0, PMC_WAKE2_STATUS);
2365 /* enable PMC wake */
2366 if (data->hwirq >= 32)
2367 offset = PMC_WAKE2_MASK;
2369 offset = PMC_WAKE_MASK;
2371 value = tegra_pmc_readl(pmc, offset);
2378 tegra_pmc_writel(pmc, value, offset);
2383 static int tegra210_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2385 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2386 unsigned int offset, bit;
2389 offset = data->hwirq / 32;
2390 bit = data->hwirq % 32;
2392 if (data->hwirq >= 32)
2393 offset = PMC_WAKE2_LEVEL;
2395 offset = PMC_WAKE_LEVEL;
2397 value = tegra_pmc_readl(pmc, offset);
2400 case IRQ_TYPE_EDGE_RISING:
2401 case IRQ_TYPE_LEVEL_HIGH:
2405 case IRQ_TYPE_EDGE_FALLING:
2406 case IRQ_TYPE_LEVEL_LOW:
2410 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2418 tegra_pmc_writel(pmc, value, offset);
2423 static void tegra186_pmc_set_wake_filters(struct tegra_pmc *pmc)
2427 /* SW Wake (wake83) needs SR_CAPTURE filter to be enabled */
2428 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID));
2429 value |= WAKE_AOWAKE_CNTRL_SR_CAPTURE_EN;
2430 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID));
2431 dev_dbg(pmc->dev, "WAKE_AOWAKE_CNTRL_83 = 0x%x\n", value);
2434 static int tegra186_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2436 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2437 unsigned int offset, bit;
2440 offset = data->hwirq / 32;
2441 bit = data->hwirq % 32;
2443 /* clear wake status */
2444 writel(0x1, pmc->wake + WAKE_AOWAKE_STATUS_W(data->hwirq));
2446 /* route wake to tier 2 */
2447 value = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2450 value &= ~(1 << bit);
2454 writel(value, pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2456 /* enable wakeup event */
2457 writel(!!on, pmc->wake + WAKE_AOWAKE_MASK_W(data->hwirq));
2462 static int tegra186_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2464 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2467 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2470 case IRQ_TYPE_EDGE_RISING:
2471 case IRQ_TYPE_LEVEL_HIGH:
2472 value |= WAKE_AOWAKE_CNTRL_LEVEL;
2473 set_bit(data->hwirq, pmc->wake_type_level_map);
2474 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2477 case IRQ_TYPE_EDGE_FALLING:
2478 case IRQ_TYPE_LEVEL_LOW:
2479 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
2480 clear_bit(data->hwirq, pmc->wake_type_level_map);
2481 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2484 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2485 value ^= WAKE_AOWAKE_CNTRL_LEVEL;
2486 clear_bit(data->hwirq, pmc->wake_type_level_map);
2487 set_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2494 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2499 static void tegra_irq_mask_parent(struct irq_data *data)
2501 if (data->parent_data)
2502 irq_chip_mask_parent(data);
2505 static void tegra_irq_unmask_parent(struct irq_data *data)
2507 if (data->parent_data)
2508 irq_chip_unmask_parent(data);
2511 static void tegra_irq_eoi_parent(struct irq_data *data)
2513 if (data->parent_data)
2514 irq_chip_eoi_parent(data);
2517 static int tegra_irq_set_affinity_parent(struct irq_data *data,
2518 const struct cpumask *dest,
2521 if (data->parent_data)
2522 return irq_chip_set_affinity_parent(data, dest, force);
2527 static int tegra_pmc_irq_init(struct tegra_pmc *pmc)
2529 struct irq_domain *parent = NULL;
2530 struct device_node *np;
2532 np = of_irq_find_parent(pmc->dev->of_node);
2534 parent = irq_find_host(np);
2541 pmc->irq.name = dev_name(pmc->dev);
2542 pmc->irq.irq_mask = tegra_irq_mask_parent;
2543 pmc->irq.irq_unmask = tegra_irq_unmask_parent;
2544 pmc->irq.irq_eoi = tegra_irq_eoi_parent;
2545 pmc->irq.irq_set_affinity = tegra_irq_set_affinity_parent;
2546 pmc->irq.irq_set_type = pmc->soc->irq_set_type;
2547 pmc->irq.irq_set_wake = pmc->soc->irq_set_wake;
2549 pmc->domain = irq_domain_add_hierarchy(parent, 0, 96, pmc->dev->of_node,
2550 &tegra_pmc_irq_domain_ops, pmc);
2552 dev_err(pmc->dev, "failed to allocate domain\n");
2559 static int tegra_pmc_clk_notify_cb(struct notifier_block *nb,
2560 unsigned long action, void *ptr)
2562 struct tegra_pmc *pmc = container_of(nb, struct tegra_pmc, clk_nb);
2563 struct clk_notifier_data *data = ptr;
2566 case PRE_RATE_CHANGE:
2567 mutex_lock(&pmc->powergates_lock);
2570 case POST_RATE_CHANGE:
2571 pmc->rate = data->new_rate;
2574 case ABORT_RATE_CHANGE:
2575 mutex_unlock(&pmc->powergates_lock);
2580 return notifier_from_errno(-EINVAL);
2586 static void pmc_clk_fence_udelay(u32 offset)
2588 tegra_pmc_readl(pmc, offset);
2589 /* pmc clk propagation delay 2 us */
2593 static u8 pmc_clk_mux_get_parent(struct clk_hw *hw)
2595 struct pmc_clk *clk = to_pmc_clk(hw);
2598 val = tegra_pmc_readl(pmc, clk->offs) >> clk->mux_shift;
2599 val &= PMC_CLK_OUT_MUX_MASK;
2604 static int pmc_clk_mux_set_parent(struct clk_hw *hw, u8 index)
2606 struct pmc_clk *clk = to_pmc_clk(hw);
2609 val = tegra_pmc_readl(pmc, clk->offs);
2610 val &= ~(PMC_CLK_OUT_MUX_MASK << clk->mux_shift);
2611 val |= index << clk->mux_shift;
2612 tegra_pmc_writel(pmc, val, clk->offs);
2613 pmc_clk_fence_udelay(clk->offs);
2618 static int pmc_clk_is_enabled(struct clk_hw *hw)
2620 struct pmc_clk *clk = to_pmc_clk(hw);
2623 val = tegra_pmc_readl(pmc, clk->offs) & BIT(clk->force_en_shift);
2628 static void pmc_clk_set_state(unsigned long offs, u32 shift, int state)
2632 val = tegra_pmc_readl(pmc, offs);
2633 val = state ? (val | BIT(shift)) : (val & ~BIT(shift));
2634 tegra_pmc_writel(pmc, val, offs);
2635 pmc_clk_fence_udelay(offs);
2638 static int pmc_clk_enable(struct clk_hw *hw)
2640 struct pmc_clk *clk = to_pmc_clk(hw);
2642 pmc_clk_set_state(clk->offs, clk->force_en_shift, 1);
2647 static void pmc_clk_disable(struct clk_hw *hw)
2649 struct pmc_clk *clk = to_pmc_clk(hw);
2651 pmc_clk_set_state(clk->offs, clk->force_en_shift, 0);
2654 static const struct clk_ops pmc_clk_ops = {
2655 .get_parent = pmc_clk_mux_get_parent,
2656 .set_parent = pmc_clk_mux_set_parent,
2657 .determine_rate = __clk_mux_determine_rate,
2658 .is_enabled = pmc_clk_is_enabled,
2659 .enable = pmc_clk_enable,
2660 .disable = pmc_clk_disable,
2664 tegra_pmc_clk_out_register(struct tegra_pmc *pmc,
2665 const struct pmc_clk_init_data *data,
2666 unsigned long offset)
2668 struct clk_init_data init;
2669 struct pmc_clk *pmc_clk;
2671 pmc_clk = devm_kzalloc(pmc->dev, sizeof(*pmc_clk), GFP_KERNEL);
2673 return ERR_PTR(-ENOMEM);
2675 init.name = data->name;
2676 init.ops = &pmc_clk_ops;
2677 init.parent_names = data->parents;
2678 init.num_parents = data->num_parents;
2679 init.flags = CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT |
2680 CLK_SET_PARENT_GATE;
2682 pmc_clk->hw.init = &init;
2683 pmc_clk->offs = offset;
2684 pmc_clk->mux_shift = data->mux_shift;
2685 pmc_clk->force_en_shift = data->force_en_shift;
2687 return clk_register(NULL, &pmc_clk->hw);
2690 static int pmc_clk_gate_is_enabled(struct clk_hw *hw)
2692 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2694 return tegra_pmc_readl(pmc, gate->offs) & BIT(gate->shift) ? 1 : 0;
2697 static int pmc_clk_gate_enable(struct clk_hw *hw)
2699 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2701 pmc_clk_set_state(gate->offs, gate->shift, 1);
2706 static void pmc_clk_gate_disable(struct clk_hw *hw)
2708 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2710 pmc_clk_set_state(gate->offs, gate->shift, 0);
2713 static const struct clk_ops pmc_clk_gate_ops = {
2714 .is_enabled = pmc_clk_gate_is_enabled,
2715 .enable = pmc_clk_gate_enable,
2716 .disable = pmc_clk_gate_disable,
2720 tegra_pmc_clk_gate_register(struct tegra_pmc *pmc, const char *name,
2721 const char *parent_name, unsigned long offset,
2724 struct clk_init_data init;
2725 struct pmc_clk_gate *gate;
2727 gate = devm_kzalloc(pmc->dev, sizeof(*gate), GFP_KERNEL);
2729 return ERR_PTR(-ENOMEM);
2732 init.ops = &pmc_clk_gate_ops;
2733 init.parent_names = &parent_name;
2734 init.num_parents = 1;
2737 gate->hw.init = &init;
2738 gate->offs = offset;
2739 gate->shift = shift;
2741 return clk_register(NULL, &gate->hw);
2744 static void tegra_pmc_clock_register(struct tegra_pmc *pmc,
2745 struct device_node *np)
2748 struct clk_onecell_data *clk_data;
2749 unsigned int num_clks;
2752 num_clks = pmc->soc->num_pmc_clks;
2753 if (pmc->soc->has_blink_output)
2759 clk_data = devm_kmalloc(pmc->dev, sizeof(*clk_data), GFP_KERNEL);
2763 clk_data->clks = devm_kcalloc(pmc->dev, TEGRA_PMC_CLK_MAX,
2764 sizeof(*clk_data->clks), GFP_KERNEL);
2765 if (!clk_data->clks)
2768 clk_data->clk_num = TEGRA_PMC_CLK_MAX;
2770 for (i = 0; i < TEGRA_PMC_CLK_MAX; i++)
2771 clk_data->clks[i] = ERR_PTR(-ENOENT);
2773 for (i = 0; i < pmc->soc->num_pmc_clks; i++) {
2774 const struct pmc_clk_init_data *data;
2776 data = pmc->soc->pmc_clks_data + i;
2778 clk = tegra_pmc_clk_out_register(pmc, data, PMC_CLK_OUT_CNTRL);
2780 dev_warn(pmc->dev, "unable to register clock %s: %d\n",
2781 data->name, PTR_ERR_OR_ZERO(clk));
2785 err = clk_register_clkdev(clk, data->name, NULL);
2788 "unable to register %s clock lookup: %d\n",
2793 clk_data->clks[data->clk_id] = clk;
2796 if (pmc->soc->has_blink_output) {
2797 tegra_pmc_writel(pmc, 0x0, PMC_BLINK_TIMER);
2798 clk = tegra_pmc_clk_gate_register(pmc,
2799 "pmc_blink_override",
2802 PMC_DPD_PADS_ORIDE_BLINK);
2805 "unable to register pmc_blink_override: %d\n",
2806 PTR_ERR_OR_ZERO(clk));
2810 clk = tegra_pmc_clk_gate_register(pmc, "pmc_blink",
2811 "pmc_blink_override",
2813 PMC_CNTRL_BLINK_EN);
2816 "unable to register pmc_blink: %d\n",
2817 PTR_ERR_OR_ZERO(clk));
2821 err = clk_register_clkdev(clk, "pmc_blink", NULL);
2824 "unable to register pmc_blink lookup: %d\n",
2829 clk_data->clks[TEGRA_PMC_CLK_BLINK] = clk;
2832 err = of_clk_add_provider(np, of_clk_src_onecell_get, clk_data);
2834 dev_warn(pmc->dev, "failed to add pmc clock provider: %d\n",
2838 static const struct regmap_range pmc_usb_sleepwalk_ranges[] = {
2839 regmap_reg_range(PMC_USB_DEBOUNCE_DEL, PMC_USB_AO),
2840 regmap_reg_range(PMC_UTMIP_UHSIC_TRIGGERS, PMC_UTMIP_UHSIC_SAVED_STATE),
2841 regmap_reg_range(PMC_UTMIP_TERM_PAD_CFG, PMC_UTMIP_UHSIC_FAKE),
2842 regmap_reg_range(PMC_UTMIP_UHSIC_LINE_WAKEUP, PMC_UTMIP_UHSIC_LINE_WAKEUP),
2843 regmap_reg_range(PMC_UTMIP_BIAS_MASTER_CNTRL, PMC_UTMIP_MASTER_CONFIG),
2844 regmap_reg_range(PMC_UTMIP_UHSIC2_TRIGGERS, PMC_UTMIP_MASTER2_CONFIG),
2845 regmap_reg_range(PMC_UTMIP_PAD_CFG0, PMC_UTMIP_UHSIC_SLEEP_CFG1),
2846 regmap_reg_range(PMC_UTMIP_SLEEPWALK_P3, PMC_UTMIP_SLEEPWALK_P3),
2849 static const struct regmap_access_table pmc_usb_sleepwalk_table = {
2850 .yes_ranges = pmc_usb_sleepwalk_ranges,
2851 .n_yes_ranges = ARRAY_SIZE(pmc_usb_sleepwalk_ranges),
2854 static int tegra_pmc_regmap_readl(void *context, unsigned int offset, unsigned int *value)
2856 struct tegra_pmc *pmc = context;
2858 *value = tegra_pmc_readl(pmc, offset);
2862 static int tegra_pmc_regmap_writel(void *context, unsigned int offset, unsigned int value)
2864 struct tegra_pmc *pmc = context;
2866 tegra_pmc_writel(pmc, value, offset);
2870 static const struct regmap_config usb_sleepwalk_regmap_config = {
2871 .name = "usb_sleepwalk",
2876 .rd_table = &pmc_usb_sleepwalk_table,
2877 .wr_table = &pmc_usb_sleepwalk_table,
2878 .reg_read = tegra_pmc_regmap_readl,
2879 .reg_write = tegra_pmc_regmap_writel,
2882 static int tegra_pmc_regmap_init(struct tegra_pmc *pmc)
2884 struct regmap *regmap;
2887 if (pmc->soc->has_usb_sleepwalk) {
2888 regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config);
2889 if (IS_ERR(regmap)) {
2890 err = PTR_ERR(regmap);
2891 dev_err(pmc->dev, "failed to allocate register map (%d)\n", err);
2899 static void tegra_pmc_reset_suspend_mode(void *data)
2901 pmc->suspend_mode = TEGRA_SUSPEND_NOT_READY;
2904 static int tegra_pmc_probe(struct platform_device *pdev)
2907 struct resource *res;
2911 * Early initialisation should have configured an initial
2912 * register mapping and setup the soc data pointer. If these
2913 * are not valid then something went badly wrong!
2915 if (WARN_ON(!pmc->base || !pmc->soc))
2918 err = tegra_pmc_parse_dt(pmc, pdev->dev.of_node);
2922 err = devm_add_action_or_reset(&pdev->dev, tegra_pmc_reset_suspend_mode,
2927 /* take over the memory region from the early initialization */
2928 base = devm_platform_ioremap_resource(pdev, 0);
2930 return PTR_ERR(base);
2932 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wake");
2934 pmc->wake = devm_ioremap_resource(&pdev->dev, res);
2935 if (IS_ERR(pmc->wake))
2936 return PTR_ERR(pmc->wake);
2941 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aotag");
2943 pmc->aotag = devm_ioremap_resource(&pdev->dev, res);
2944 if (IS_ERR(pmc->aotag))
2945 return PTR_ERR(pmc->aotag);
2950 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scratch");
2952 pmc->scratch = devm_ioremap_resource(&pdev->dev, res);
2953 if (IS_ERR(pmc->scratch))
2954 return PTR_ERR(pmc->scratch);
2956 pmc->scratch = base;
2959 pmc->clk = devm_clk_get_optional(&pdev->dev, "pclk");
2960 if (IS_ERR(pmc->clk))
2961 return dev_err_probe(&pdev->dev, PTR_ERR(pmc->clk),
2962 "failed to get pclk\n");
2965 * PMC should be last resort for restarting since it soft-resets
2966 * CPU without resetting everything else.
2968 err = devm_register_reboot_notifier(&pdev->dev,
2969 &tegra_pmc_reboot_notifier);
2971 dev_err(&pdev->dev, "unable to register reboot notifier, %d\n",
2976 err = devm_register_sys_off_handler(&pdev->dev,
2977 SYS_OFF_MODE_RESTART,
2979 tegra_pmc_restart_handler, NULL);
2981 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
2987 * PMC should be primary power-off method if it soft-resets CPU,
2988 * asking bootloader to shutdown hardware.
2990 err = devm_register_sys_off_handler(&pdev->dev,
2991 SYS_OFF_MODE_POWER_OFF,
2992 SYS_OFF_PRIO_FIRMWARE,
2993 tegra_pmc_power_off_handler, NULL);
2995 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
3001 * PCLK clock rate can't be retrieved using CLK API because it
3002 * causes lockup if CPU enters LP2 idle state from some other
3003 * CLK notifier, hence we're caching the rate's value locally.
3006 pmc->clk_nb.notifier_call = tegra_pmc_clk_notify_cb;
3007 err = clk_notifier_register(pmc->clk, &pmc->clk_nb);
3010 "failed to register clk notifier\n");
3014 pmc->rate = clk_get_rate(pmc->clk);
3017 pmc->dev = &pdev->dev;
3019 err = tegra_pmc_init(pmc);
3021 dev_err(&pdev->dev, "failed to initialize PMC: %d\n", err);
3025 tegra_pmc_init_tsense_reset(pmc);
3027 tegra_pmc_reset_sysfs_init(pmc);
3029 if (IS_ENABLED(CONFIG_DEBUG_FS)) {
3030 err = tegra_powergate_debugfs_init();
3035 err = tegra_pmc_pinctrl_init(pmc);
3037 goto cleanup_debugfs;
3039 err = tegra_pmc_regmap_init(pmc);
3041 goto cleanup_debugfs;
3043 err = tegra_powergate_init(pmc, pdev->dev.of_node);
3045 goto cleanup_powergates;
3047 err = tegra_pmc_irq_init(pmc);
3049 goto cleanup_powergates;
3051 mutex_lock(&pmc->powergates_lock);
3054 mutex_unlock(&pmc->powergates_lock);
3056 tegra_pmc_clock_register(pmc, pdev->dev.of_node);
3057 platform_set_drvdata(pdev, pmc);
3058 tegra_pm_init_suspend();
3060 /* Some wakes require specific filter configuration */
3061 if (pmc->soc->set_wake_filters)
3062 pmc->soc->set_wake_filters(pmc);
3067 tegra_powergate_remove_all(pdev->dev.of_node);
3069 debugfs_remove(pmc->debugfs);
3071 device_remove_file(&pdev->dev, &dev_attr_reset_reason);
3072 device_remove_file(&pdev->dev, &dev_attr_reset_level);
3073 clk_notifier_unregister(pmc->clk, &pmc->clk_nb);
3079 * Ensures that sufficient time is passed for a register write to
3080 * serialize into the 32KHz domain.
3082 static void wke_32kwritel(struct tegra_pmc *pmc, u32 value, unsigned int offset)
3084 writel(value, pmc->wake + offset);
3088 static void wke_write_wake_level(struct tegra_pmc *pmc, int wake, int level)
3090 unsigned int offset = WAKE_AOWAKE_CNTRL(wake);
3093 value = readl(pmc->wake + offset);
3095 value |= WAKE_AOWAKE_CNTRL_LEVEL;
3097 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
3099 writel(value, pmc->wake + offset);
3102 static void wke_write_wake_levels(struct tegra_pmc *pmc)
3106 for (i = 0; i < pmc->soc->max_wake_events; i++)
3107 wke_write_wake_level(pmc, i, test_bit(i, pmc->wake_cntrl_level_map));
3110 static void wke_clear_sw_wake_status(struct tegra_pmc *pmc)
3112 wke_32kwritel(pmc, 1, WAKE_AOWAKE_SW_STATUS_W_0);
3115 static void wke_read_sw_wake_status(struct tegra_pmc *pmc)
3117 unsigned long status;
3118 unsigned int wake, i;
3120 for (i = 0; i < pmc->soc->max_wake_events; i++)
3121 wke_write_wake_level(pmc, i, 0);
3123 wke_clear_sw_wake_status(pmc);
3125 wke_32kwritel(pmc, 1, WAKE_LATCH_SW);
3128 * WAKE_AOWAKE_SW_STATUS is edge triggered, so in order to
3129 * obtain the current status of the input wake signals, change
3130 * the polarity of the wake level from 0->1 while latching to force
3131 * a positive edge if the sampled signal is '1'.
3133 for (i = 0; i < pmc->soc->max_wake_events; i++)
3134 wke_write_wake_level(pmc, i, 1);
3137 * Wait for the update to be synced into the 32kHz domain,
3138 * and let enough time lapse, so that the wake signals have time to
3143 wke_32kwritel(pmc, 0, WAKE_LATCH_SW);
3145 bitmap_zero(pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3147 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3148 status = readl(pmc->wake + WAKE_AOWAKE_SW_STATUS(i));
3150 for_each_set_bit(wake, &status, 32)
3151 set_bit(wake + (i * 32), pmc->wake_sw_status_map);
3155 static void wke_clear_wake_status(struct tegra_pmc *pmc)
3157 unsigned long status;
3158 unsigned int i, wake;
3161 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3162 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3163 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3165 for_each_set_bit(wake, &status, 32)
3166 wke_32kwritel(pmc, 0x1, WAKE_AOWAKE_STATUS_W((i * 32) + wake));
3170 /* translate sc7 wake sources back into IRQs to catch edge triggered wakeups */
3171 static void tegra186_pmc_process_wake_events(struct tegra_pmc *pmc, unsigned int index,
3172 unsigned long status)
3176 dev_dbg(pmc->dev, "Wake[%d:%d] status=%#lx\n", (index * 32) + 31, index * 32, status);
3178 for_each_set_bit(wake, &status, 32) {
3179 irq_hw_number_t hwirq = wake + 32 * index;
3180 struct irq_desc *desc;
3183 irq = irq_find_mapping(pmc->domain, hwirq);
3185 desc = irq_to_desc(irq);
3186 if (!desc || !desc->action || !desc->action->name) {
3187 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, IRQ %d\n", hwirq, irq);
3191 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, %s\n", hwirq, desc->action->name);
3192 generic_handle_irq(irq);
3196 static void tegra186_pmc_wake_syscore_resume(void)
3201 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3202 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3203 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3205 tegra186_pmc_process_wake_events(pmc, i, status);
3209 static int tegra186_pmc_wake_syscore_suspend(void)
3211 wke_read_sw_wake_status(pmc);
3213 /* flip the wakeup trigger for dual-edge triggered pads
3214 * which are currently asserting as wakeups
3216 bitmap_andnot(pmc->wake_cntrl_level_map, pmc->wake_type_dual_edge_map,
3217 pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3218 bitmap_or(pmc->wake_cntrl_level_map, pmc->wake_cntrl_level_map,
3219 pmc->wake_type_level_map, pmc->soc->max_wake_events);
3221 /* Clear PMC Wake Status registers while going to suspend */
3222 wke_clear_wake_status(pmc);
3223 wke_write_wake_levels(pmc);
3228 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
3229 static int tegra_pmc_suspend(struct device *dev)
3231 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3233 tegra_pmc_writel(pmc, virt_to_phys(tegra_resume), PMC_SCRATCH41);
3238 static int tegra_pmc_resume(struct device *dev)
3240 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3242 tegra_pmc_writel(pmc, 0x0, PMC_SCRATCH41);
3247 static SIMPLE_DEV_PM_OPS(tegra_pmc_pm_ops, tegra_pmc_suspend, tegra_pmc_resume);
3251 static const char * const tegra20_powergates[] = {
3252 [TEGRA_POWERGATE_CPU] = "cpu",
3253 [TEGRA_POWERGATE_3D] = "td",
3254 [TEGRA_POWERGATE_VENC] = "venc",
3255 [TEGRA_POWERGATE_VDEC] = "vdec",
3256 [TEGRA_POWERGATE_PCIE] = "pcie",
3257 [TEGRA_POWERGATE_L2] = "l2",
3258 [TEGRA_POWERGATE_MPE] = "mpe",
3261 static const struct tegra_pmc_regs tegra20_pmc_regs = {
3263 .rst_status = 0x1b4,
3264 .rst_source_shift = 0x0,
3265 .rst_source_mask = 0x7,
3266 .rst_level_shift = 0x0,
3267 .rst_level_mask = 0x0,
3270 static void tegra20_pmc_init(struct tegra_pmc *pmc)
3272 u32 value, osc, pmu, off;
3274 /* Always enable CPU power request */
3275 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3276 value |= PMC_CNTRL_CPU_PWRREQ_OE;
3277 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3279 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3281 if (pmc->sysclkreq_high)
3282 value &= ~PMC_CNTRL_SYSCLK_POLARITY;
3284 value |= PMC_CNTRL_SYSCLK_POLARITY;
3286 if (pmc->corereq_high)
3287 value &= ~PMC_CNTRL_PWRREQ_POLARITY;
3289 value |= PMC_CNTRL_PWRREQ_POLARITY;
3291 /* configure the output polarity while the request is tristated */
3292 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3294 /* now enable the request */
3295 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3296 value |= PMC_CNTRL_SYSCLK_OE;
3297 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3299 /* program core timings which are applicable only for suspend state */
3300 if (pmc->suspend_mode != TEGRA_SUSPEND_NONE) {
3301 osc = DIV_ROUND_UP(pmc->core_osc_time * 8192, 1000000);
3302 pmu = DIV_ROUND_UP(pmc->core_pmu_time * 32768, 1000000);
3303 off = DIV_ROUND_UP(pmc->core_off_time * 32768, 1000000);
3304 tegra_pmc_writel(pmc, ((osc << 8) & 0xff00) | (pmu & 0xff),
3305 PMC_COREPWRGOOD_TIMER);
3306 tegra_pmc_writel(pmc, off, PMC_COREPWROFF_TIMER);
3310 static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3311 struct device_node *np,
3316 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3319 value |= PMC_CNTRL_INTR_POLARITY;
3321 value &= ~PMC_CNTRL_INTR_POLARITY;
3323 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3326 static const struct tegra_pmc_soc tegra20_pmc_soc = {
3327 .supports_core_domain = true,
3328 .num_powergates = ARRAY_SIZE(tegra20_powergates),
3329 .powergates = tegra20_powergates,
3330 .num_cpu_powergates = 0,
3331 .cpu_powergates = NULL,
3332 .has_tsense_reset = false,
3333 .has_gpu_clamps = false,
3334 .needs_mbist_war = false,
3335 .has_impl_33v_pwr = false,
3336 .maybe_tz_only = false,
3341 .regs = &tegra20_pmc_regs,
3342 .init = tegra20_pmc_init,
3343 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3344 .powergate_set = tegra20_powergate_set,
3345 .reset_sources = NULL,
3346 .num_reset_sources = 0,
3347 .reset_levels = NULL,
3348 .num_reset_levels = 0,
3349 .pmc_clks_data = NULL,
3351 .has_blink_output = true,
3352 .has_usb_sleepwalk = true,
3355 static const char * const tegra30_powergates[] = {
3356 [TEGRA_POWERGATE_CPU] = "cpu0",
3357 [TEGRA_POWERGATE_3D] = "td",
3358 [TEGRA_POWERGATE_VENC] = "venc",
3359 [TEGRA_POWERGATE_VDEC] = "vdec",
3360 [TEGRA_POWERGATE_PCIE] = "pcie",
3361 [TEGRA_POWERGATE_L2] = "l2",
3362 [TEGRA_POWERGATE_MPE] = "mpe",
3363 [TEGRA_POWERGATE_HEG] = "heg",
3364 [TEGRA_POWERGATE_SATA] = "sata",
3365 [TEGRA_POWERGATE_CPU1] = "cpu1",
3366 [TEGRA_POWERGATE_CPU2] = "cpu2",
3367 [TEGRA_POWERGATE_CPU3] = "cpu3",
3368 [TEGRA_POWERGATE_CELP] = "celp",
3369 [TEGRA_POWERGATE_3D1] = "td2",
3372 static const u8 tegra30_cpu_powergates[] = {
3373 TEGRA_POWERGATE_CPU,
3374 TEGRA_POWERGATE_CPU1,
3375 TEGRA_POWERGATE_CPU2,
3376 TEGRA_POWERGATE_CPU3,
3379 static const char * const tegra30_reset_sources[] = {
3387 static const struct tegra_pmc_soc tegra30_pmc_soc = {
3388 .supports_core_domain = true,
3389 .num_powergates = ARRAY_SIZE(tegra30_powergates),
3390 .powergates = tegra30_powergates,
3391 .num_cpu_powergates = ARRAY_SIZE(tegra30_cpu_powergates),
3392 .cpu_powergates = tegra30_cpu_powergates,
3393 .has_tsense_reset = true,
3394 .has_gpu_clamps = false,
3395 .needs_mbist_war = false,
3396 .has_impl_33v_pwr = false,
3397 .maybe_tz_only = false,
3402 .regs = &tegra20_pmc_regs,
3403 .init = tegra20_pmc_init,
3404 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3405 .powergate_set = tegra20_powergate_set,
3406 .reset_sources = tegra30_reset_sources,
3407 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3408 .reset_levels = NULL,
3409 .num_reset_levels = 0,
3410 .pmc_clks_data = tegra_pmc_clks_data,
3411 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3412 .has_blink_output = true,
3413 .has_usb_sleepwalk = true,
3416 static const char * const tegra114_powergates[] = {
3417 [TEGRA_POWERGATE_CPU] = "crail",
3418 [TEGRA_POWERGATE_3D] = "td",
3419 [TEGRA_POWERGATE_VENC] = "venc",
3420 [TEGRA_POWERGATE_VDEC] = "vdec",
3421 [TEGRA_POWERGATE_MPE] = "mpe",
3422 [TEGRA_POWERGATE_HEG] = "heg",
3423 [TEGRA_POWERGATE_CPU1] = "cpu1",
3424 [TEGRA_POWERGATE_CPU2] = "cpu2",
3425 [TEGRA_POWERGATE_CPU3] = "cpu3",
3426 [TEGRA_POWERGATE_CELP] = "celp",
3427 [TEGRA_POWERGATE_CPU0] = "cpu0",
3428 [TEGRA_POWERGATE_C0NC] = "c0nc",
3429 [TEGRA_POWERGATE_C1NC] = "c1nc",
3430 [TEGRA_POWERGATE_DIS] = "dis",
3431 [TEGRA_POWERGATE_DISB] = "disb",
3432 [TEGRA_POWERGATE_XUSBA] = "xusba",
3433 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3434 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3437 static const u8 tegra114_cpu_powergates[] = {
3438 TEGRA_POWERGATE_CPU0,
3439 TEGRA_POWERGATE_CPU1,
3440 TEGRA_POWERGATE_CPU2,
3441 TEGRA_POWERGATE_CPU3,
3444 static const struct tegra_pmc_soc tegra114_pmc_soc = {
3445 .supports_core_domain = false,
3446 .num_powergates = ARRAY_SIZE(tegra114_powergates),
3447 .powergates = tegra114_powergates,
3448 .num_cpu_powergates = ARRAY_SIZE(tegra114_cpu_powergates),
3449 .cpu_powergates = tegra114_cpu_powergates,
3450 .has_tsense_reset = true,
3451 .has_gpu_clamps = false,
3452 .needs_mbist_war = false,
3453 .has_impl_33v_pwr = false,
3454 .maybe_tz_only = false,
3459 .regs = &tegra20_pmc_regs,
3460 .init = tegra20_pmc_init,
3461 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3462 .powergate_set = tegra114_powergate_set,
3463 .reset_sources = tegra30_reset_sources,
3464 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3465 .reset_levels = NULL,
3466 .num_reset_levels = 0,
3467 .pmc_clks_data = tegra_pmc_clks_data,
3468 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3469 .has_blink_output = true,
3470 .has_usb_sleepwalk = true,
3473 static const char * const tegra124_powergates[] = {
3474 [TEGRA_POWERGATE_CPU] = "crail",
3475 [TEGRA_POWERGATE_3D] = "3d",
3476 [TEGRA_POWERGATE_VENC] = "venc",
3477 [TEGRA_POWERGATE_PCIE] = "pcie",
3478 [TEGRA_POWERGATE_VDEC] = "vdec",
3479 [TEGRA_POWERGATE_MPE] = "mpe",
3480 [TEGRA_POWERGATE_HEG] = "heg",
3481 [TEGRA_POWERGATE_SATA] = "sata",
3482 [TEGRA_POWERGATE_CPU1] = "cpu1",
3483 [TEGRA_POWERGATE_CPU2] = "cpu2",
3484 [TEGRA_POWERGATE_CPU3] = "cpu3",
3485 [TEGRA_POWERGATE_CELP] = "celp",
3486 [TEGRA_POWERGATE_CPU0] = "cpu0",
3487 [TEGRA_POWERGATE_C0NC] = "c0nc",
3488 [TEGRA_POWERGATE_C1NC] = "c1nc",
3489 [TEGRA_POWERGATE_SOR] = "sor",
3490 [TEGRA_POWERGATE_DIS] = "dis",
3491 [TEGRA_POWERGATE_DISB] = "disb",
3492 [TEGRA_POWERGATE_XUSBA] = "xusba",
3493 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3494 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3495 [TEGRA_POWERGATE_VIC] = "vic",
3496 [TEGRA_POWERGATE_IRAM] = "iram",
3499 static const u8 tegra124_cpu_powergates[] = {
3500 TEGRA_POWERGATE_CPU0,
3501 TEGRA_POWERGATE_CPU1,
3502 TEGRA_POWERGATE_CPU2,
3503 TEGRA_POWERGATE_CPU3,
3506 #define TEGRA_IO_PAD(_id, _dpd, _request, _status, _voltage, _name) \
3507 ((struct tegra_io_pad_soc) { \
3510 .request = (_request), \
3511 .status = (_status), \
3512 .voltage = (_voltage), \
3516 #define TEGRA_IO_PIN_DESC(_id, _name) \
3517 ((struct pinctrl_pin_desc) { \
3522 static const struct tegra_io_pad_soc tegra124_io_pads[] = {
3523 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, UINT_MAX, "audio"),
3524 TEGRA_IO_PAD(TEGRA_IO_PAD_BB, 15, 0x1b8, 0x1bc, UINT_MAX, "bb"),
3525 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, UINT_MAX, "cam"),
3526 TEGRA_IO_PAD(TEGRA_IO_PAD_COMP, 22, 0x1b8, 0x1bc, UINT_MAX, "comp"),
3527 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3528 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3529 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3530 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3531 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3532 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3533 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3534 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3535 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3536 TEGRA_IO_PAD(TEGRA_IO_PAD_HV, 6, 0x1c0, 0x1c4, UINT_MAX, "hv"),
3537 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3538 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3539 TEGRA_IO_PAD(TEGRA_IO_PAD_NAND, 13, 0x1b8, 0x1bc, UINT_MAX, "nand"),
3540 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3541 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3542 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3543 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x1c0, 0x1c4, UINT_MAX, "pex-cntrl"),
3544 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, UINT_MAX, "sdmmc1"),
3545 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, UINT_MAX, "sdmmc3"),
3546 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 3, 0x1c0, 0x1c4, UINT_MAX, "sdmmc4"),
3547 TEGRA_IO_PAD(TEGRA_IO_PAD_SYS_DDC, 26, 0x1c0, 0x1c4, UINT_MAX, "sys_ddc"),
3548 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, UINT_MAX, "uart"),
3549 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3550 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3551 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3552 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb_bias"),
3555 static const struct pinctrl_pin_desc tegra124_pin_descs[] = {
3556 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3557 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_BB, "bb"),
3558 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3559 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_COMP, "comp"),
3560 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3561 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3562 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3563 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3564 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3565 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3566 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3567 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3568 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3569 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HV, "hv"),
3570 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3571 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3572 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_NAND, "nand"),
3573 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3574 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3575 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3576 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3577 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3578 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3579 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3580 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SYS_DDC, "sys_ddc"),
3581 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3582 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3583 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3584 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3585 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb_bias"),
3588 static const struct tegra_pmc_soc tegra124_pmc_soc = {
3589 .supports_core_domain = false,
3590 .num_powergates = ARRAY_SIZE(tegra124_powergates),
3591 .powergates = tegra124_powergates,
3592 .num_cpu_powergates = ARRAY_SIZE(tegra124_cpu_powergates),
3593 .cpu_powergates = tegra124_cpu_powergates,
3594 .has_tsense_reset = true,
3595 .has_gpu_clamps = true,
3596 .needs_mbist_war = false,
3597 .has_impl_33v_pwr = false,
3598 .maybe_tz_only = false,
3599 .num_io_pads = ARRAY_SIZE(tegra124_io_pads),
3600 .io_pads = tegra124_io_pads,
3601 .num_pin_descs = ARRAY_SIZE(tegra124_pin_descs),
3602 .pin_descs = tegra124_pin_descs,
3603 .regs = &tegra20_pmc_regs,
3604 .init = tegra20_pmc_init,
3605 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3606 .powergate_set = tegra114_powergate_set,
3607 .reset_sources = tegra30_reset_sources,
3608 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3609 .reset_levels = NULL,
3610 .num_reset_levels = 0,
3611 .pmc_clks_data = tegra_pmc_clks_data,
3612 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3613 .has_blink_output = true,
3614 .has_usb_sleepwalk = true,
3617 static const char * const tegra210_powergates[] = {
3618 [TEGRA_POWERGATE_CPU] = "crail",
3619 [TEGRA_POWERGATE_3D] = "3d",
3620 [TEGRA_POWERGATE_VENC] = "venc",
3621 [TEGRA_POWERGATE_PCIE] = "pcie",
3622 [TEGRA_POWERGATE_MPE] = "mpe",
3623 [TEGRA_POWERGATE_SATA] = "sata",
3624 [TEGRA_POWERGATE_CPU1] = "cpu1",
3625 [TEGRA_POWERGATE_CPU2] = "cpu2",
3626 [TEGRA_POWERGATE_CPU3] = "cpu3",
3627 [TEGRA_POWERGATE_CPU0] = "cpu0",
3628 [TEGRA_POWERGATE_C0NC] = "c0nc",
3629 [TEGRA_POWERGATE_SOR] = "sor",
3630 [TEGRA_POWERGATE_DIS] = "dis",
3631 [TEGRA_POWERGATE_DISB] = "disb",
3632 [TEGRA_POWERGATE_XUSBA] = "xusba",
3633 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3634 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3635 [TEGRA_POWERGATE_VIC] = "vic",
3636 [TEGRA_POWERGATE_IRAM] = "iram",
3637 [TEGRA_POWERGATE_NVDEC] = "nvdec",
3638 [TEGRA_POWERGATE_NVJPG] = "nvjpg",
3639 [TEGRA_POWERGATE_AUD] = "aud",
3640 [TEGRA_POWERGATE_DFD] = "dfd",
3641 [TEGRA_POWERGATE_VE2] = "ve2",
3644 static const u8 tegra210_cpu_powergates[] = {
3645 TEGRA_POWERGATE_CPU0,
3646 TEGRA_POWERGATE_CPU1,
3647 TEGRA_POWERGATE_CPU2,
3648 TEGRA_POWERGATE_CPU3,
3651 static const struct tegra_io_pad_soc tegra210_io_pads[] = {
3652 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, 5, "audio"),
3653 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x1c0, 0x1c4, 18, "audio-hv"),
3654 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, 10, "cam"),
3655 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3656 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3657 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 10, 0x1c0, 0x1c4, UINT_MAX, "csic"),
3658 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 11, 0x1c0, 0x1c4, UINT_MAX, "csid"),
3659 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3660 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 13, 0x1c0, 0x1c4, UINT_MAX, "csif"),
3661 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x1b8, 0x1bc, 19, "dbg"),
3662 TEGRA_IO_PAD(TEGRA_IO_PAD_DEBUG_NONAO, 26, 0x1b8, 0x1bc, UINT_MAX, "debug-nonao"),
3663 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC, 18, 0x1c0, 0x1c4, 20, "dmic"),
3664 TEGRA_IO_PAD(TEGRA_IO_PAD_DP, 19, 0x1c0, 0x1c4, UINT_MAX, "dp"),
3665 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3666 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3667 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3668 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3669 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC, 3, 0x1c0, 0x1c4, UINT_MAX, "emmc"),
3670 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC2, 5, 0x1c0, 0x1c4, UINT_MAX, "emmc2"),
3671 TEGRA_IO_PAD(TEGRA_IO_PAD_GPIO, 27, 0x1b8, 0x1bc, 21, "gpio"),
3672 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3673 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3674 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3675 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3676 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3677 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3678 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3679 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, UINT_MAX, UINT_MAX, UINT_MAX, 11, "pex-cntrl"),
3680 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, 12, "sdmmc1"),
3681 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, 13, "sdmmc3"),
3682 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 14, 0x1c0, 0x1c4, 22, "spi"),
3683 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI_HV, 15, 0x1c0, 0x1c4, 23, "spi-hv"),
3684 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, 2, "uart"),
3685 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3686 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3687 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3688 TEGRA_IO_PAD(TEGRA_IO_PAD_USB3, 18, 0x1b8, 0x1bc, UINT_MAX, "usb3"),
3689 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb-bias"),
3692 static const struct pinctrl_pin_desc tegra210_pin_descs[] = {
3693 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3694 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3695 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3696 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3697 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3698 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3699 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3700 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3701 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3702 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3703 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DEBUG_NONAO, "debug-nonao"),
3704 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC, "dmic"),
3705 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DP, "dp"),
3706 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3707 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3708 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3709 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3710 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC, "emmc"),
3711 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC2, "emmc2"),
3712 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GPIO, "gpio"),
3713 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3714 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3715 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3716 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3717 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3718 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3719 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3720 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3721 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3722 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3723 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3724 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI_HV, "spi-hv"),
3725 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3726 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3727 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3728 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3729 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB3, "usb3"),
3730 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3733 static const char * const tegra210_reset_sources[] = {
3742 static const struct tegra_wake_event tegra210_wake_events[] = {
3743 TEGRA_WAKE_IRQ("rtc", 16, 2),
3744 TEGRA_WAKE_IRQ("pmu", 51, 86),
3747 static const struct tegra_pmc_soc tegra210_pmc_soc = {
3748 .supports_core_domain = false,
3749 .num_powergates = ARRAY_SIZE(tegra210_powergates),
3750 .powergates = tegra210_powergates,
3751 .num_cpu_powergates = ARRAY_SIZE(tegra210_cpu_powergates),
3752 .cpu_powergates = tegra210_cpu_powergates,
3753 .has_tsense_reset = true,
3754 .has_gpu_clamps = true,
3755 .needs_mbist_war = true,
3756 .has_impl_33v_pwr = false,
3757 .maybe_tz_only = true,
3758 .num_io_pads = ARRAY_SIZE(tegra210_io_pads),
3759 .io_pads = tegra210_io_pads,
3760 .num_pin_descs = ARRAY_SIZE(tegra210_pin_descs),
3761 .pin_descs = tegra210_pin_descs,
3762 .regs = &tegra20_pmc_regs,
3763 .init = tegra20_pmc_init,
3764 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3765 .powergate_set = tegra114_powergate_set,
3766 .irq_set_wake = tegra210_pmc_irq_set_wake,
3767 .irq_set_type = tegra210_pmc_irq_set_type,
3768 .reset_sources = tegra210_reset_sources,
3769 .num_reset_sources = ARRAY_SIZE(tegra210_reset_sources),
3770 .reset_levels = NULL,
3771 .num_reset_levels = 0,
3772 .num_wake_events = ARRAY_SIZE(tegra210_wake_events),
3773 .wake_events = tegra210_wake_events,
3774 .pmc_clks_data = tegra_pmc_clks_data,
3775 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3776 .has_blink_output = true,
3777 .has_usb_sleepwalk = true,
3780 static const struct tegra_io_pad_soc tegra186_io_pads[] = {
3781 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3782 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3783 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x74, 0x78, UINT_MAX, "dsi"),
3784 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3785 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3786 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3787 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3788 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3789 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x74, 0x78, UINT_MAX, "usb0"),
3790 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x74, 0x78, UINT_MAX, "usb1"),
3791 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x74, 0x78, UINT_MAX, "usb2"),
3792 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x74, 0x78, UINT_MAX, "usb-bias"),
3793 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3794 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3795 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x74, 0x78, UINT_MAX, "hsic"),
3796 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
3797 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3798 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3799 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3800 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC2_HV, 2, 0x7c, 0x80, 5, "sdmmc2-hv"),
3801 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
3802 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
3803 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 8, 0x7c, 0x80, UINT_MAX, "dsib"),
3804 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 9, 0x7c, 0x80, UINT_MAX, "dsic"),
3805 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 10, 0x7c, 0x80, UINT_MAX, "dsid"),
3806 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
3807 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
3808 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
3809 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
3810 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
3811 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
3812 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC_HV, 20, 0x7c, 0x80, 2, "dmic-hv"),
3813 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
3814 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
3815 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
3816 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
3817 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
3818 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
3821 static const struct pinctrl_pin_desc tegra186_pin_descs[] = {
3822 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3823 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3824 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3825 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3826 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
3827 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
3828 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3829 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3830 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3831 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3832 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3833 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3834 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3835 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3836 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3837 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3838 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
3839 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
3840 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3841 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC2_HV, "sdmmc2-hv"),
3842 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3843 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3844 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3845 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3846 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3847 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3848 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3849 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3850 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3851 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3852 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
3853 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC_HV, "dmic-hv"),
3854 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
3855 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
3856 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
3857 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
3858 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3859 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
3862 static const struct tegra_pmc_regs tegra186_pmc_regs = {
3865 .rst_source_shift = 0x2,
3866 .rst_source_mask = 0x3c,
3867 .rst_level_shift = 0x0,
3868 .rst_level_mask = 0x3,
3871 static void tegra186_pmc_init(struct tegra_pmc *pmc)
3873 pmc->syscore.suspend = tegra186_pmc_wake_syscore_suspend;
3874 pmc->syscore.resume = tegra186_pmc_wake_syscore_resume;
3876 register_syscore_ops(&pmc->syscore);
3879 static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3880 struct device_node *np,
3883 struct resource regs;
3888 index = of_property_match_string(np, "reg-names", "wake");
3890 dev_err(pmc->dev, "failed to find PMC wake registers\n");
3894 of_address_to_resource(np, index, ®s);
3896 wake = ioremap(regs.start, resource_size(®s));
3898 dev_err(pmc->dev, "failed to map PMC wake registers\n");
3902 value = readl(wake + WAKE_AOWAKE_CTRL);
3905 value |= WAKE_AOWAKE_CTRL_INTR_POLARITY;
3907 value &= ~WAKE_AOWAKE_CTRL_INTR_POLARITY;
3909 writel(value, wake + WAKE_AOWAKE_CTRL);
3914 static const char * const tegra186_reset_sources[] = {
3932 static const char * const tegra186_reset_levels[] = {
3933 "L0", "L1", "L2", "WARM"
3936 static const struct tegra_wake_event tegra186_wake_events[] = {
3937 TEGRA_WAKE_IRQ("pmu", 24, 209),
3938 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA186_AON_GPIO(FF, 0)),
3939 TEGRA_WAKE_IRQ("rtc", 73, 10),
3942 static const struct tegra_pmc_soc tegra186_pmc_soc = {
3943 .supports_core_domain = false,
3944 .num_powergates = 0,
3946 .num_cpu_powergates = 0,
3947 .cpu_powergates = NULL,
3948 .has_tsense_reset = false,
3949 .has_gpu_clamps = false,
3950 .needs_mbist_war = false,
3951 .has_impl_33v_pwr = true,
3952 .maybe_tz_only = false,
3953 .num_io_pads = ARRAY_SIZE(tegra186_io_pads),
3954 .io_pads = tegra186_io_pads,
3955 .num_pin_descs = ARRAY_SIZE(tegra186_pin_descs),
3956 .pin_descs = tegra186_pin_descs,
3957 .regs = &tegra186_pmc_regs,
3958 .init = tegra186_pmc_init,
3959 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
3960 .set_wake_filters = tegra186_pmc_set_wake_filters,
3961 .irq_set_wake = tegra186_pmc_irq_set_wake,
3962 .irq_set_type = tegra186_pmc_irq_set_type,
3963 .reset_sources = tegra186_reset_sources,
3964 .num_reset_sources = ARRAY_SIZE(tegra186_reset_sources),
3965 .reset_levels = tegra186_reset_levels,
3966 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
3967 .num_wake_events = ARRAY_SIZE(tegra186_wake_events),
3968 .wake_events = tegra186_wake_events,
3969 .max_wake_events = 96,
3970 .max_wake_vectors = 3,
3971 .pmc_clks_data = NULL,
3973 .has_blink_output = false,
3974 .has_usb_sleepwalk = false,
3977 static const struct tegra_io_pad_soc tegra194_io_pads[] = {
3978 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3979 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3980 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3981 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3982 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3983 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3984 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3985 TEGRA_IO_PAD(TEGRA_IO_PAD_EQOS, 8, 0x74, 0x78, UINT_MAX, "eqos"),
3986 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2_BIAS, 9, 0x74, 0x78, UINT_MAX, "pex-clk-2-bias"),
3987 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2, 10, 0x74, 0x78, UINT_MAX, "pex-clk-2"),
3988 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP3, 11, 0x74, 0x78, UINT_MAX, "dap3"),
3989 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP5, 12, 0x74, 0x78, UINT_MAX, "dap5"),
3990 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3991 TEGRA_IO_PAD(TEGRA_IO_PAD_PWR_CTL, 15, 0x74, 0x78, UINT_MAX, "pwr-ctl"),
3992 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO53, 16, 0x74, 0x78, UINT_MAX, "soc-gpio53"),
3993 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3994 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM2, 18, 0x74, 0x78, UINT_MAX, "gp-pwm2"),
3995 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM3, 19, 0x74, 0x78, UINT_MAX, "gp-pwm3"),
3996 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO12, 20, 0x74, 0x78, UINT_MAX, "soc-gpio12"),
3997 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO13, 21, 0x74, 0x78, UINT_MAX, "soc-gpio13"),
3998 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO10, 22, 0x74, 0x78, UINT_MAX, "soc-gpio10"),
3999 TEGRA_IO_PAD(TEGRA_IO_PAD_UART4, 23, 0x74, 0x78, UINT_MAX, "uart4"),
4000 TEGRA_IO_PAD(TEGRA_IO_PAD_UART5, 24, 0x74, 0x78, UINT_MAX, "uart5"),
4001 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
4002 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP3, 26, 0x74, 0x78, UINT_MAX, "hdmi-dp3"),
4003 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP2, 27, 0x74, 0x78, UINT_MAX, "hdmi-dp2"),
4004 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
4005 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
4006 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
4007 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CTL2, 1, 0x7c, 0x80, UINT_MAX, "pex-ctl2"),
4008 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L0_RST, 2, 0x7c, 0x80, UINT_MAX, "pex-l0-rst"),
4009 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L1_RST, 3, 0x7c, 0x80, UINT_MAX, "pex-l1-rst"),
4010 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
4011 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L5_RST, 5, 0x7c, 0x80, UINT_MAX, "pex-l5-rst"),
4012 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
4013 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
4014 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
4015 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
4016 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
4017 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
4018 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
4019 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 18, 0x7c, 0x80, UINT_MAX, "csig"),
4020 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 19, 0x7c, 0x80, UINT_MAX, "csih"),
4021 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
4022 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
4023 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
4024 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
4025 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
4026 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4029 static const struct pinctrl_pin_desc tegra194_pin_descs[] = {
4030 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
4031 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
4032 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
4033 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
4034 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
4035 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
4036 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
4037 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EQOS, "eqos"),
4038 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2_BIAS, "pex-clk-2-bias"),
4039 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2, "pex-clk-2"),
4040 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP3, "dap3"),
4041 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP5, "dap5"),
4042 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
4043 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PWR_CTL, "pwr-ctl"),
4044 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO53, "soc-gpio53"),
4045 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
4046 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM2, "gp-pwm2"),
4047 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM3, "gp-pwm3"),
4048 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO12, "soc-gpio12"),
4049 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO13, "soc-gpio13"),
4050 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO10, "soc-gpio10"),
4051 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART4, "uart4"),
4052 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART5, "uart5"),
4053 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
4054 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP3, "hdmi-dp3"),
4055 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP2, "hdmi-dp2"),
4056 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4057 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
4058 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
4059 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CTL2, "pex-ctl2"),
4060 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L0_RST, "pex-l0-rst"),
4061 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L1_RST, "pex-l1-rst"),
4062 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
4063 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L5_RST, "pex-l5-rst"),
4064 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
4065 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4066 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4067 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4068 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4069 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
4070 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4071 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4072 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4073 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4074 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4075 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4076 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
4077 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4078 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4081 static const struct tegra_pmc_regs tegra194_pmc_regs = {
4084 .rst_source_shift = 0x2,
4085 .rst_source_mask = 0x7c,
4086 .rst_level_shift = 0x0,
4087 .rst_level_mask = 0x3,
4090 static const char * const tegra194_reset_sources[] = {
4114 static const struct tegra_wake_event tegra194_wake_events[] = {
4115 TEGRA_WAKE_IRQ("pmu", 24, 209),
4116 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA194_AON_GPIO(EE, 4)),
4117 TEGRA_WAKE_IRQ("rtc", 73, 10),
4118 TEGRA_WAKE_SIMPLE("usb3-port-0", 76),
4119 TEGRA_WAKE_SIMPLE("usb3-port-1", 77),
4120 TEGRA_WAKE_SIMPLE("usb3-port-2-3", 78),
4121 TEGRA_WAKE_SIMPLE("usb2-port-0", 79),
4122 TEGRA_WAKE_SIMPLE("usb2-port-1", 80),
4123 TEGRA_WAKE_SIMPLE("usb2-port-2", 81),
4124 TEGRA_WAKE_SIMPLE("usb2-port-3", 82),
4127 static const struct tegra_pmc_soc tegra194_pmc_soc = {
4128 .supports_core_domain = false,
4129 .num_powergates = 0,
4131 .num_cpu_powergates = 0,
4132 .cpu_powergates = NULL,
4133 .has_tsense_reset = false,
4134 .has_gpu_clamps = false,
4135 .needs_mbist_war = false,
4136 .has_impl_33v_pwr = true,
4137 .maybe_tz_only = false,
4138 .num_io_pads = ARRAY_SIZE(tegra194_io_pads),
4139 .io_pads = tegra194_io_pads,
4140 .num_pin_descs = ARRAY_SIZE(tegra194_pin_descs),
4141 .pin_descs = tegra194_pin_descs,
4142 .regs = &tegra194_pmc_regs,
4143 .init = tegra186_pmc_init,
4144 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4145 .set_wake_filters = tegra186_pmc_set_wake_filters,
4146 .irq_set_wake = tegra186_pmc_irq_set_wake,
4147 .irq_set_type = tegra186_pmc_irq_set_type,
4148 .reset_sources = tegra194_reset_sources,
4149 .num_reset_sources = ARRAY_SIZE(tegra194_reset_sources),
4150 .reset_levels = tegra186_reset_levels,
4151 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4152 .num_wake_events = ARRAY_SIZE(tegra194_wake_events),
4153 .wake_events = tegra194_wake_events,
4154 .max_wake_events = 96,
4155 .max_wake_vectors = 3,
4156 .pmc_clks_data = NULL,
4158 .has_blink_output = false,
4159 .has_usb_sleepwalk = false,
4162 static const struct tegra_io_pad_soc tegra234_io_pads[] = {
4163 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0xe0c0, 0xe0c4, UINT_MAX, "csia"),
4164 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0xe0c0, 0xe0c4, UINT_MAX, "csib"),
4165 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 0, 0xe0d0, 0xe0d4, UINT_MAX, "hdmi-dp0"),
4166 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 2, 0xe0c0, 0xe0c4, UINT_MAX, "csic"),
4167 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 3, 0xe0c0, 0xe0c4, UINT_MAX, "csid"),
4168 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 4, 0xe0c0, 0xe0c4, UINT_MAX, "csie"),
4169 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 5, 0xe0c0, 0xe0c4, UINT_MAX, "csif"),
4170 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 0, 0xe064, 0xe068, UINT_MAX, "ufs"),
4171 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 1, 0xe05c, 0xe060, UINT_MAX, "edp"),
4172 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 0, 0xe054, 0xe058, 4, "sdmmc1-hv"),
4173 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, UINT_MAX, UINT_MAX, UINT_MAX, 6, "sdmmc3-hv"),
4174 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 1, "audio-hv"),
4175 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4176 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 6, 0xe0c0, 0xe0c4, UINT_MAX, "csig"),
4177 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 7, 0xe0c0, 0xe0c4, UINT_MAX, "csih"),
4180 static const struct pinctrl_pin_desc tegra234_pin_descs[] = {
4181 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
4182 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
4183 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4184 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4185 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4186 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4187 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4188 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4189 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4190 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4191 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4192 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4193 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4194 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4195 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4198 static const struct tegra_pmc_regs tegra234_pmc_regs = {
4201 .rst_source_shift = 0x2,
4202 .rst_source_mask = 0xfc,
4203 .rst_level_shift = 0x0,
4204 .rst_level_mask = 0x3,
4207 static const char * const tegra234_reset_sources[] = {
4208 "SYS_RESET_N", /* 0x0 */
4232 "CSITE_SW", /* 0x18 */
4240 "FSI_R52C0WDT", /* 0x20 */
4245 "FSI_VMON", /* 0x25 */
4248 static const struct tegra_wake_event tegra234_wake_events[] = {
4249 TEGRA_WAKE_IRQ("pmu", 24, 209),
4250 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
4251 TEGRA_WAKE_GPIO("mgbe", 56, 0, TEGRA234_MAIN_GPIO(Y, 3)),
4252 TEGRA_WAKE_IRQ("rtc", 73, 10),
4255 static const struct tegra_pmc_soc tegra234_pmc_soc = {
4256 .supports_core_domain = false,
4257 .num_powergates = 0,
4259 .num_cpu_powergates = 0,
4260 .cpu_powergates = NULL,
4261 .has_tsense_reset = false,
4262 .has_gpu_clamps = false,
4263 .needs_mbist_war = false,
4264 .has_impl_33v_pwr = true,
4265 .maybe_tz_only = false,
4266 .num_io_pads = ARRAY_SIZE(tegra234_io_pads),
4267 .io_pads = tegra234_io_pads,
4268 .num_pin_descs = ARRAY_SIZE(tegra234_pin_descs),
4269 .pin_descs = tegra234_pin_descs,
4270 .regs = &tegra234_pmc_regs,
4271 .init = tegra186_pmc_init,
4272 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4273 .set_wake_filters = tegra186_pmc_set_wake_filters,
4274 .irq_set_wake = tegra186_pmc_irq_set_wake,
4275 .irq_set_type = tegra186_pmc_irq_set_type,
4276 .reset_sources = tegra234_reset_sources,
4277 .num_reset_sources = ARRAY_SIZE(tegra234_reset_sources),
4278 .reset_levels = tegra186_reset_levels,
4279 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4280 .num_wake_events = ARRAY_SIZE(tegra234_wake_events),
4281 .wake_events = tegra234_wake_events,
4282 .max_wake_events = 96,
4283 .max_wake_vectors = 3,
4284 .pmc_clks_data = NULL,
4286 .has_blink_output = false,
4289 static const struct of_device_id tegra_pmc_match[] = {
4290 { .compatible = "nvidia,tegra234-pmc", .data = &tegra234_pmc_soc },
4291 { .compatible = "nvidia,tegra194-pmc", .data = &tegra194_pmc_soc },
4292 { .compatible = "nvidia,tegra186-pmc", .data = &tegra186_pmc_soc },
4293 { .compatible = "nvidia,tegra210-pmc", .data = &tegra210_pmc_soc },
4294 { .compatible = "nvidia,tegra132-pmc", .data = &tegra124_pmc_soc },
4295 { .compatible = "nvidia,tegra124-pmc", .data = &tegra124_pmc_soc },
4296 { .compatible = "nvidia,tegra114-pmc", .data = &tegra114_pmc_soc },
4297 { .compatible = "nvidia,tegra30-pmc", .data = &tegra30_pmc_soc },
4298 { .compatible = "nvidia,tegra20-pmc", .data = &tegra20_pmc_soc },
4302 static void tegra_pmc_sync_state(struct device *dev)
4307 * Newer device-trees have power domains, but we need to prepare all
4308 * device drivers with runtime PM and OPP support first, otherwise
4309 * state syncing is unsafe.
4311 if (!pmc->soc->supports_core_domain)
4315 * Older device-trees don't have core PD, and thus, there are
4316 * no dependencies that will block the state syncing. We shouldn't
4317 * mark the domain as synced in this case.
4319 if (!pmc->core_domain_registered)
4322 pmc->core_domain_state_synced = true;
4324 /* this is a no-op if core regulator isn't used */
4325 mutex_lock(&pmc->powergates_lock);
4326 err = dev_pm_opp_sync_regulators(dev);
4327 mutex_unlock(&pmc->powergates_lock);
4330 dev_err(dev, "failed to sync regulators: %d\n", err);
4333 static struct platform_driver tegra_pmc_driver = {
4335 .name = "tegra-pmc",
4336 .suppress_bind_attrs = true,
4337 .of_match_table = tegra_pmc_match,
4338 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
4339 .pm = &tegra_pmc_pm_ops,
4341 .sync_state = tegra_pmc_sync_state,
4343 .probe = tegra_pmc_probe,
4345 builtin_platform_driver(tegra_pmc_driver);
4347 static bool __init tegra_pmc_detect_tz_only(struct tegra_pmc *pmc)
4351 saved = readl(pmc->base + pmc->soc->regs->scratch0);
4352 value = saved ^ 0xffffffff;
4354 if (value == 0xffffffff)
4357 /* write pattern and read it back */
4358 writel(value, pmc->base + pmc->soc->regs->scratch0);
4359 value = readl(pmc->base + pmc->soc->regs->scratch0);
4361 /* if we read all-zeroes, access is restricted to TZ only */
4363 pr_info("access to PMC is restricted to TZ\n");
4367 /* restore original value */
4368 writel(saved, pmc->base + pmc->soc->regs->scratch0);
4374 * Early initialization to allow access to registers in the very early boot
4377 static int __init tegra_pmc_early_init(void)
4379 const struct of_device_id *match;
4380 struct device_node *np;
4381 struct resource regs;
4385 mutex_init(&pmc->powergates_lock);
4387 np = of_find_matching_node_and_match(NULL, tegra_pmc_match, &match);
4390 * Fall back to legacy initialization for 32-bit ARM only. All
4391 * 64-bit ARM device tree files for Tegra are required to have
4394 * This is for backwards-compatibility with old device trees
4395 * that didn't contain a PMC node. Note that in this case the
4396 * SoC data can't be matched and therefore powergating is
4399 if (IS_ENABLED(CONFIG_ARM) && soc_is_tegra()) {
4400 pr_warn("DT node not found, powergating disabled\n");
4402 regs.start = 0x7000e400;
4403 regs.end = 0x7000e7ff;
4404 regs.flags = IORESOURCE_MEM;
4406 pr_warn("Using memory region %pR\n", ®s);
4409 * At this point we're not running on Tegra, so play
4410 * nice with multi-platform kernels.
4416 * Extract information from the device tree if we've found a
4419 if (of_address_to_resource(np, 0, ®s) < 0) {
4420 pr_err("failed to get PMC registers\n");
4426 pmc->base = ioremap(regs.start, resource_size(®s));
4428 pr_err("failed to map PMC registers\n");
4433 if (of_device_is_available(np)) {
4434 pmc->soc = match->data;
4436 if (pmc->soc->maybe_tz_only)
4437 pmc->tz_only = tegra_pmc_detect_tz_only(pmc);
4439 /* Create a bitmap of the available and valid partitions */
4440 for (i = 0; i < pmc->soc->num_powergates; i++)
4441 if (pmc->soc->powergates[i])
4442 set_bit(i, pmc->powergates_available);
4445 * Invert the interrupt polarity if a PMC device tree node
4446 * exists and contains the nvidia,invert-interrupt property.
4448 invert = of_property_read_bool(np, "nvidia,invert-interrupt");
4450 pmc->soc->setup_irq_polarity(pmc, np, invert);
4457 early_initcall(tegra_pmc_early_init);