1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/soc/tegra/pmc.c
5 * Copyright (c) 2010 Google, Inc
6 * Copyright (c) 2018-2024, 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;
387 bool has_single_mmio_aperture;
391 * struct tegra_pmc - NVIDIA Tegra PMC
392 * @dev: pointer to PMC device structure
393 * @base: pointer to I/O remapped register region
394 * @wake: pointer to I/O remapped region for WAKE registers
395 * @aotag: pointer to I/O remapped region for AOTAG registers
396 * @scratch: pointer to I/O remapped region for scratch registers
397 * @clk: pointer to pclk clock
398 * @soc: pointer to SoC data structure
399 * @tz_only: flag specifying if the PMC can only be accessed via TrustZone
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;
435 const struct tegra_pmc_soc *soc;
440 enum tegra_suspend_mode suspend_mode;
449 bool cpu_pwr_good_en;
452 DECLARE_BITMAP(powergates_available, TEGRA_POWERGATE_MAX);
454 struct mutex powergates_lock;
456 struct pinctrl_dev *pctl_dev;
458 struct irq_domain *domain;
461 struct notifier_block clk_nb;
463 bool core_domain_state_synced;
464 bool core_domain_registered;
466 unsigned long *wake_type_level_map;
467 unsigned long *wake_type_dual_edge_map;
468 unsigned long *wake_sw_status_map;
469 unsigned long *wake_cntrl_level_map;
470 struct syscore_ops syscore;
473 static struct tegra_pmc *pmc = &(struct tegra_pmc) {
475 .suspend_mode = TEGRA_SUSPEND_NOT_READY,
478 static inline struct tegra_powergate *
479 to_powergate(struct generic_pm_domain *domain)
481 return container_of(domain, struct tegra_powergate, genpd);
484 static u32 tegra_pmc_readl(struct tegra_pmc *pmc, unsigned long offset)
486 struct arm_smccc_res res;
489 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_READ, offset, 0, 0,
493 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
496 pr_warn("%s(): SMC failed: %lu\n", __func__,
503 return readl(pmc->base + offset);
506 static void tegra_pmc_writel(struct tegra_pmc *pmc, u32 value,
507 unsigned long offset)
509 struct arm_smccc_res res;
512 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_WRITE, offset,
513 value, 0, 0, 0, 0, &res);
516 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
519 pr_warn("%s(): SMC failed: %lu\n", __func__,
523 writel(value, pmc->base + offset);
527 static u32 tegra_pmc_scratch_readl(struct tegra_pmc *pmc, unsigned long offset)
530 return tegra_pmc_readl(pmc, offset);
532 return readl(pmc->scratch + offset);
535 static void tegra_pmc_scratch_writel(struct tegra_pmc *pmc, u32 value,
536 unsigned long offset)
539 tegra_pmc_writel(pmc, value, offset);
541 writel(value, pmc->scratch + offset);
545 * TODO Figure out a way to call this with the struct tegra_pmc * passed in.
546 * This currently doesn't work because readx_poll_timeout() can only operate
547 * on functions that take a single argument.
549 static inline bool tegra_powergate_state(int id)
551 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
552 return (tegra_pmc_readl(pmc, GPU_RG_CNTRL) & 0x1) == 0;
554 return (tegra_pmc_readl(pmc, PWRGATE_STATUS) & BIT(id)) != 0;
557 static inline bool tegra_powergate_is_valid(struct tegra_pmc *pmc, int id)
559 return (pmc->soc && pmc->soc->powergates[id]);
562 static inline bool tegra_powergate_is_available(struct tegra_pmc *pmc, int id)
564 return test_bit(id, pmc->powergates_available);
567 static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name)
571 if (!pmc || !pmc->soc || !name)
574 for (i = 0; i < pmc->soc->num_powergates; i++) {
575 if (!tegra_powergate_is_valid(pmc, i))
578 if (!strcmp(name, pmc->soc->powergates[i]))
585 static int tegra20_powergate_set(struct tegra_pmc *pmc, unsigned int id,
588 unsigned int retries = 100;
593 * As per TRM documentation, the toggle command will be dropped by PMC
594 * if there is contention with a HW-initiated toggling (i.e. CPU core
595 * power-gated), the command should be retried in that case.
598 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
600 /* wait for PMC to execute the command */
601 ret = readx_poll_timeout(tegra_powergate_state, id, status,
602 status == new_state, 1, 10);
603 } while (ret == -ETIMEDOUT && retries--);
608 static inline bool tegra_powergate_toggle_ready(struct tegra_pmc *pmc)
610 return !(tegra_pmc_readl(pmc, PWRGATE_TOGGLE) & PWRGATE_TOGGLE_START);
613 static int tegra114_powergate_set(struct tegra_pmc *pmc, unsigned int id,
619 /* wait while PMC power gating is contended */
620 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
621 status == true, 1, 100);
625 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
627 /* wait for PMC to accept the command */
628 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
629 status == true, 1, 100);
633 /* wait for PMC to execute the command */
634 err = readx_poll_timeout(tegra_powergate_state, id, status,
635 status == new_state, 10, 100000);
643 * tegra_powergate_set() - set the state of a partition
644 * @pmc: power management controller
646 * @new_state: new state of the partition
648 static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id,
653 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
656 mutex_lock(&pmc->powergates_lock);
658 if (tegra_powergate_state(id) == new_state) {
659 mutex_unlock(&pmc->powergates_lock);
663 err = pmc->soc->powergate_set(pmc, id, new_state);
665 mutex_unlock(&pmc->powergates_lock);
670 static int __tegra_powergate_remove_clamping(struct tegra_pmc *pmc,
675 mutex_lock(&pmc->powergates_lock);
678 * On Tegra124 and later, the clamps for the GPU are controlled by a
679 * separate register (with different semantics).
681 if (id == TEGRA_POWERGATE_3D) {
682 if (pmc->soc->has_gpu_clamps) {
683 tegra_pmc_writel(pmc, 0, GPU_RG_CNTRL);
689 * Tegra 2 has a bug where PCIE and VDE clamping masks are
690 * swapped relatively to the partition ids
692 if (id == TEGRA_POWERGATE_VDEC)
693 mask = (1 << TEGRA_POWERGATE_PCIE);
694 else if (id == TEGRA_POWERGATE_PCIE)
695 mask = (1 << TEGRA_POWERGATE_VDEC);
699 tegra_pmc_writel(pmc, mask, REMOVE_CLAMPING);
702 mutex_unlock(&pmc->powergates_lock);
707 static int tegra_powergate_prepare_clocks(struct tegra_powergate *pg)
709 unsigned long safe_rate = 100 * 1000 * 1000;
713 for (i = 0; i < pg->num_clks; i++) {
714 pg->clk_rates[i] = clk_get_rate(pg->clks[i]);
716 if (!pg->clk_rates[i]) {
721 if (pg->clk_rates[i] <= safe_rate)
725 * We don't know whether voltage state is okay for the
726 * current clock rate, hence it's better to temporally
727 * switch clock to a safe rate which is suitable for
728 * all voltages, before enabling the clock.
730 err = clk_set_rate(pg->clks[i], safe_rate);
739 clk_set_rate(pg->clks[i], pg->clk_rates[i]);
744 static int tegra_powergate_unprepare_clocks(struct tegra_powergate *pg)
749 for (i = 0; i < pg->num_clks; i++) {
750 err = clk_set_rate(pg->clks[i], pg->clk_rates[i]);
758 static void tegra_powergate_disable_clocks(struct tegra_powergate *pg)
762 for (i = 0; i < pg->num_clks; i++)
763 clk_disable_unprepare(pg->clks[i]);
766 static int tegra_powergate_enable_clocks(struct tegra_powergate *pg)
771 for (i = 0; i < pg->num_clks; i++) {
772 err = clk_prepare_enable(pg->clks[i]);
781 clk_disable_unprepare(pg->clks[i]);
786 static int tegra_powergate_power_up(struct tegra_powergate *pg,
791 err = reset_control_assert(pg->reset);
795 usleep_range(10, 20);
797 err = tegra_powergate_set(pg->pmc, pg->id, true);
801 usleep_range(10, 20);
803 err = tegra_powergate_prepare_clocks(pg);
807 err = tegra_powergate_enable_clocks(pg);
811 usleep_range(10, 20);
813 err = __tegra_powergate_remove_clamping(pg->pmc, pg->id);
817 usleep_range(10, 20);
819 err = reset_control_deassert(pg->reset);
823 usleep_range(10, 20);
825 if (pg->pmc->soc->needs_mbist_war)
826 err = tegra210_clk_handle_mbist_war(pg->id);
831 tegra_powergate_disable_clocks(pg);
833 err = tegra_powergate_unprepare_clocks(pg);
840 tegra_powergate_disable_clocks(pg);
841 usleep_range(10, 20);
844 tegra_powergate_unprepare_clocks(pg);
847 tegra_powergate_set(pg->pmc, pg->id, false);
852 static int tegra_powergate_power_down(struct tegra_powergate *pg)
856 err = tegra_powergate_prepare_clocks(pg);
860 err = tegra_powergate_enable_clocks(pg);
864 usleep_range(10, 20);
866 err = reset_control_assert(pg->reset);
870 usleep_range(10, 20);
872 tegra_powergate_disable_clocks(pg);
874 usleep_range(10, 20);
876 err = tegra_powergate_set(pg->pmc, pg->id, false);
880 err = tegra_powergate_unprepare_clocks(pg);
887 tegra_powergate_enable_clocks(pg);
888 usleep_range(10, 20);
889 reset_control_deassert(pg->reset);
890 usleep_range(10, 20);
893 tegra_powergate_disable_clocks(pg);
896 tegra_powergate_unprepare_clocks(pg);
901 static int tegra_genpd_power_on(struct generic_pm_domain *domain)
903 struct tegra_powergate *pg = to_powergate(domain);
904 struct device *dev = pg->pmc->dev;
907 err = tegra_powergate_power_up(pg, true);
909 dev_err(dev, "failed to turn on PM domain %s: %d\n",
910 pg->genpd.name, err);
914 reset_control_release(pg->reset);
920 static int tegra_genpd_power_off(struct generic_pm_domain *domain)
922 struct tegra_powergate *pg = to_powergate(domain);
923 struct device *dev = pg->pmc->dev;
926 err = reset_control_acquire(pg->reset);
928 dev_err(dev, "failed to acquire resets for PM domain %s: %d\n",
929 pg->genpd.name, err);
933 err = tegra_powergate_power_down(pg);
935 dev_err(dev, "failed to turn off PM domain %s: %d\n",
936 pg->genpd.name, err);
937 reset_control_release(pg->reset);
944 * tegra_powergate_power_on() - power on partition
947 int tegra_powergate_power_on(unsigned int id)
949 if (!tegra_powergate_is_available(pmc, id))
952 return tegra_powergate_set(pmc, id, true);
954 EXPORT_SYMBOL(tegra_powergate_power_on);
957 * tegra_powergate_power_off() - power off partition
960 int tegra_powergate_power_off(unsigned int id)
962 if (!tegra_powergate_is_available(pmc, id))
965 return tegra_powergate_set(pmc, id, false);
967 EXPORT_SYMBOL(tegra_powergate_power_off);
970 * tegra_powergate_is_powered() - check if partition is powered
971 * @pmc: power management controller
974 static int tegra_powergate_is_powered(struct tegra_pmc *pmc, unsigned int id)
976 if (!tegra_powergate_is_valid(pmc, id))
979 return tegra_powergate_state(id);
983 * tegra_powergate_remove_clamping() - remove power clamps for partition
986 int tegra_powergate_remove_clamping(unsigned int id)
988 if (!tegra_powergate_is_available(pmc, id))
991 return __tegra_powergate_remove_clamping(pmc, id);
993 EXPORT_SYMBOL(tegra_powergate_remove_clamping);
996 * tegra_powergate_sequence_power_up() - power up partition
998 * @clk: clock for partition
999 * @rst: reset for partition
1001 * Must be called with clk disabled, and returns with clk enabled.
1003 int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
1004 struct reset_control *rst)
1006 struct tegra_powergate *pg;
1009 if (!tegra_powergate_is_available(pmc, id))
1012 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1016 pg->clk_rates = kzalloc(sizeof(*pg->clk_rates), GFP_KERNEL);
1017 if (!pg->clk_rates) {
1028 err = tegra_powergate_power_up(pg, false);
1030 dev_err(pmc->dev, "failed to turn on partition %d: %d\n", id,
1033 kfree(pg->clk_rates);
1038 EXPORT_SYMBOL(tegra_powergate_sequence_power_up);
1041 * tegra_get_cpu_powergate_id() - convert from CPU ID to partition ID
1042 * @pmc: power management controller
1043 * @cpuid: CPU partition ID
1045 * Returns the partition ID corresponding to the CPU partition ID or a
1046 * negative error code on failure.
1048 static int tegra_get_cpu_powergate_id(struct tegra_pmc *pmc,
1051 if (pmc->soc && cpuid < pmc->soc->num_cpu_powergates)
1052 return pmc->soc->cpu_powergates[cpuid];
1058 * tegra_pmc_cpu_is_powered() - check if CPU partition is powered
1059 * @cpuid: CPU partition ID
1061 bool tegra_pmc_cpu_is_powered(unsigned int cpuid)
1065 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1069 return tegra_powergate_is_powered(pmc, id);
1073 * tegra_pmc_cpu_power_on() - power on CPU partition
1074 * @cpuid: CPU partition ID
1076 int tegra_pmc_cpu_power_on(unsigned int cpuid)
1080 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1084 return tegra_powergate_set(pmc, id, true);
1088 * tegra_pmc_cpu_remove_clamping() - remove power clamps for CPU partition
1089 * @cpuid: CPU partition ID
1091 int tegra_pmc_cpu_remove_clamping(unsigned int cpuid)
1095 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1099 return tegra_powergate_remove_clamping(id);
1102 static void tegra_pmc_program_reboot_reason(const char *cmd)
1106 value = tegra_pmc_scratch_readl(pmc, pmc->soc->regs->scratch0);
1107 value &= ~PMC_SCRATCH0_MODE_MASK;
1110 if (strcmp(cmd, "recovery") == 0)
1111 value |= PMC_SCRATCH0_MODE_RECOVERY;
1113 if (strcmp(cmd, "bootloader") == 0)
1114 value |= PMC_SCRATCH0_MODE_BOOTLOADER;
1116 if (strcmp(cmd, "forced-recovery") == 0)
1117 value |= PMC_SCRATCH0_MODE_RCM;
1120 tegra_pmc_scratch_writel(pmc, value, pmc->soc->regs->scratch0);
1123 static int tegra_pmc_reboot_notify(struct notifier_block *this,
1124 unsigned long action, void *data)
1126 if (action == SYS_RESTART)
1127 tegra_pmc_program_reboot_reason(data);
1132 static struct notifier_block tegra_pmc_reboot_notifier = {
1133 .notifier_call = tegra_pmc_reboot_notify,
1136 static void tegra_pmc_restart(void)
1140 /* reset everything but PMC_SCRATCH0 and PMC_RST_STATUS */
1141 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1142 value |= PMC_CNTRL_MAIN_RST;
1143 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1146 static int tegra_pmc_restart_handler(struct sys_off_data *data)
1148 tegra_pmc_restart();
1153 static int tegra_pmc_power_off_handler(struct sys_off_data *data)
1156 * Reboot Nexus 7 into special bootloader mode if USB cable is
1157 * connected in order to display battery status and power off.
1159 if (of_machine_is_compatible("asus,grouper") &&
1160 power_supply_is_system_supplied()) {
1161 const u32 go_to_charger_mode = 0xa5a55a5a;
1163 tegra_pmc_writel(pmc, go_to_charger_mode, PMC_SCRATCH37);
1164 tegra_pmc_restart();
1170 static int powergate_show(struct seq_file *s, void *data)
1175 seq_printf(s, " powergate powered\n");
1176 seq_printf(s, "------------------\n");
1178 for (i = 0; i < pmc->soc->num_powergates; i++) {
1179 status = tegra_powergate_is_powered(pmc, i);
1183 seq_printf(s, " %9s %7s\n", pmc->soc->powergates[i],
1184 status ? "yes" : "no");
1190 DEFINE_SHOW_ATTRIBUTE(powergate);
1192 static int tegra_powergate_of_get_clks(struct tegra_powergate *pg,
1193 struct device_node *np)
1196 unsigned int i, count;
1199 count = of_clk_get_parent_count(np);
1203 pg->clks = kcalloc(count, sizeof(clk), GFP_KERNEL);
1207 pg->clk_rates = kcalloc(count, sizeof(*pg->clk_rates), GFP_KERNEL);
1208 if (!pg->clk_rates) {
1213 for (i = 0; i < count; i++) {
1214 pg->clks[i] = of_clk_get(np, i);
1215 if (IS_ERR(pg->clks[i])) {
1216 err = PTR_ERR(pg->clks[i]);
1221 pg->num_clks = count;
1227 clk_put(pg->clks[i]);
1229 kfree(pg->clk_rates);
1235 static int tegra_powergate_of_get_resets(struct tegra_powergate *pg,
1236 struct device_node *np, bool off)
1238 struct device *dev = pg->pmc->dev;
1241 pg->reset = of_reset_control_array_get_exclusive_released(np);
1242 if (IS_ERR(pg->reset)) {
1243 err = PTR_ERR(pg->reset);
1244 dev_err(dev, "failed to get device resets: %d\n", err);
1248 err = reset_control_acquire(pg->reset);
1250 pr_err("failed to acquire resets: %d\n", err);
1255 err = reset_control_assert(pg->reset);
1257 err = reset_control_deassert(pg->reset);
1261 reset_control_release(pg->reset);
1266 reset_control_release(pg->reset);
1267 reset_control_put(pg->reset);
1273 static int tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
1275 struct device *dev = pmc->dev;
1276 struct tegra_powergate *pg;
1280 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1284 id = tegra_powergate_lookup(pmc, np->name);
1286 dev_err(dev, "powergate lookup failed for %pOFn: %d\n", np, id);
1292 * Clear the bit for this powergate so it cannot be managed
1293 * directly via the legacy APIs for controlling powergates.
1295 clear_bit(id, pmc->powergates_available);
1298 pg->genpd.name = np->name;
1299 pg->genpd.power_off = tegra_genpd_power_off;
1300 pg->genpd.power_on = tegra_genpd_power_on;
1303 off = !tegra_powergate_is_powered(pmc, pg->id);
1305 err = tegra_powergate_of_get_clks(pg, np);
1307 dev_err(dev, "failed to get clocks for %pOFn: %d\n", np, err);
1311 err = tegra_powergate_of_get_resets(pg, np, off);
1313 dev_err(dev, "failed to get resets for %pOFn: %d\n", np, err);
1317 if (!IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
1319 WARN_ON(tegra_powergate_power_up(pg, true));
1324 err = pm_genpd_init(&pg->genpd, NULL, off);
1326 dev_err(dev, "failed to initialise PM domain %pOFn: %d\n", np,
1331 err = of_genpd_add_provider_simple(np, &pg->genpd);
1333 dev_err(dev, "failed to add PM domain provider for %pOFn: %d\n",
1338 dev_dbg(dev, "added PM domain %s\n", pg->genpd.name);
1343 pm_genpd_remove(&pg->genpd);
1346 reset_control_put(pg->reset);
1349 while (pg->num_clks--)
1350 clk_put(pg->clks[pg->num_clks]);
1355 set_bit(id, pmc->powergates_available);
1363 bool tegra_pmc_core_domain_state_synced(void)
1365 return pmc->core_domain_state_synced;
1369 tegra_pmc_core_pd_set_performance_state(struct generic_pm_domain *genpd,
1372 struct dev_pm_opp *opp;
1375 opp = dev_pm_opp_find_level_ceil(&genpd->dev, &level);
1377 dev_err(&genpd->dev, "failed to find OPP for level %u: %pe\n",
1379 return PTR_ERR(opp);
1382 mutex_lock(&pmc->powergates_lock);
1383 err = dev_pm_opp_set_opp(pmc->dev, opp);
1384 mutex_unlock(&pmc->powergates_lock);
1386 dev_pm_opp_put(opp);
1389 dev_err(&genpd->dev, "failed to set voltage to %duV: %d\n",
1397 static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
1399 struct generic_pm_domain *genpd;
1400 const char *rname[] = { "core", NULL};
1403 genpd = devm_kzalloc(pmc->dev, sizeof(*genpd), GFP_KERNEL);
1407 genpd->name = "core";
1408 genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state;
1410 err = devm_pm_opp_set_regulators(pmc->dev, rname);
1412 return dev_err_probe(pmc->dev, err,
1413 "failed to set core OPP regulator\n");
1415 err = pm_genpd_init(genpd, NULL, false);
1417 dev_err(pmc->dev, "failed to init core genpd: %d\n", err);
1421 err = of_genpd_add_provider_simple(np, genpd);
1423 dev_err(pmc->dev, "failed to add core genpd: %d\n", err);
1427 pmc->core_domain_registered = true;
1432 pm_genpd_remove(genpd);
1437 static int tegra_powergate_init(struct tegra_pmc *pmc,
1438 struct device_node *parent)
1440 struct of_phandle_args child_args, parent_args;
1441 struct device_node *np;
1445 * Core power domain is the parent of powergate domains, hence it
1446 * should be registered first.
1448 np = of_get_child_by_name(parent, "core-domain");
1450 err = tegra_pmc_core_pd_add(pmc, np);
1456 np = of_get_child_by_name(parent, "powergates");
1460 for_each_child_of_node_scoped(np, child) {
1461 err = tegra_powergate_add(pmc, child);
1465 if (of_parse_phandle_with_args(child, "power-domains",
1466 "#power-domain-cells",
1470 child_args.np = child;
1471 child_args.args_count = 0;
1473 err = of_genpd_add_subdomain(&parent_args, &child_args);
1474 of_node_put(parent_args.np);
1484 static void tegra_powergate_remove(struct generic_pm_domain *genpd)
1486 struct tegra_powergate *pg = to_powergate(genpd);
1488 reset_control_put(pg->reset);
1490 while (pg->num_clks--)
1491 clk_put(pg->clks[pg->num_clks]);
1495 set_bit(pg->id, pmc->powergates_available);
1500 static void tegra_powergate_remove_all(struct device_node *parent)
1502 struct generic_pm_domain *genpd;
1503 struct device_node *np, *child;
1505 np = of_get_child_by_name(parent, "powergates");
1509 for_each_child_of_node(np, child) {
1510 of_genpd_del_provider(child);
1512 genpd = of_genpd_remove_last(child);
1516 tegra_powergate_remove(genpd);
1521 np = of_get_child_by_name(parent, "core-domain");
1523 of_genpd_del_provider(np);
1524 of_genpd_remove_last(np);
1528 static const struct tegra_io_pad_soc *
1529 tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id)
1533 for (i = 0; i < pmc->soc->num_io_pads; i++)
1534 if (pmc->soc->io_pads[i].id == id)
1535 return &pmc->soc->io_pads[i];
1540 static int tegra_io_pad_prepare(struct tegra_pmc *pmc,
1541 const struct tegra_io_pad_soc *pad,
1542 unsigned long *request,
1543 unsigned long *status,
1546 unsigned long rate, value;
1548 if (pad->dpd == UINT_MAX)
1551 *request = pad->request;
1552 *status = pad->status;
1553 *mask = BIT(pad->dpd);
1558 dev_err(pmc->dev, "failed to get clock rate\n");
1562 tegra_pmc_writel(pmc, DPD_SAMPLE_ENABLE, DPD_SAMPLE);
1564 /* must be at least 200 ns, in APB (PCLK) clock cycles */
1565 value = DIV_ROUND_UP(1000000000, rate);
1566 value = DIV_ROUND_UP(200, value);
1567 tegra_pmc_writel(pmc, value, SEL_DPD_TIM);
1573 static int tegra_io_pad_poll(struct tegra_pmc *pmc, unsigned long offset,
1574 u32 mask, u32 val, unsigned long timeout)
1578 timeout = jiffies + msecs_to_jiffies(timeout);
1580 while (time_after(timeout, jiffies)) {
1581 value = tegra_pmc_readl(pmc, offset);
1582 if ((value & mask) == val)
1585 usleep_range(250, 1000);
1591 static void tegra_io_pad_unprepare(struct tegra_pmc *pmc)
1594 tegra_pmc_writel(pmc, DPD_SAMPLE_DISABLE, DPD_SAMPLE);
1598 * tegra_io_pad_power_enable() - enable power to I/O pad
1599 * @id: Tegra I/O pad ID for which to enable power
1601 * Returns: 0 on success or a negative error code on failure.
1603 int tegra_io_pad_power_enable(enum tegra_io_pad id)
1605 const struct tegra_io_pad_soc *pad;
1606 unsigned long request, status;
1610 pad = tegra_io_pad_find(pmc, id);
1612 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1616 mutex_lock(&pmc->powergates_lock);
1618 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1620 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1624 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_OFF | mask, request);
1626 err = tegra_io_pad_poll(pmc, status, mask, 0, 250);
1628 dev_err(pmc->dev, "failed to enable I/O pad: %d\n", err);
1632 tegra_io_pad_unprepare(pmc);
1635 mutex_unlock(&pmc->powergates_lock);
1638 EXPORT_SYMBOL(tegra_io_pad_power_enable);
1641 * tegra_io_pad_power_disable() - disable power to I/O pad
1642 * @id: Tegra I/O pad ID for which to disable power
1644 * Returns: 0 on success or a negative error code on failure.
1646 int tegra_io_pad_power_disable(enum tegra_io_pad id)
1648 const struct tegra_io_pad_soc *pad;
1649 unsigned long request, status;
1653 pad = tegra_io_pad_find(pmc, id);
1655 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1659 mutex_lock(&pmc->powergates_lock);
1661 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1663 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1667 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_ON | mask, request);
1669 err = tegra_io_pad_poll(pmc, status, mask, mask, 250);
1671 dev_err(pmc->dev, "failed to disable I/O pad: %d\n", err);
1675 tegra_io_pad_unprepare(pmc);
1678 mutex_unlock(&pmc->powergates_lock);
1681 EXPORT_SYMBOL(tegra_io_pad_power_disable);
1683 static int tegra_io_pad_is_powered(struct tegra_pmc *pmc, enum tegra_io_pad id)
1685 const struct tegra_io_pad_soc *pad;
1686 unsigned long status;
1689 pad = tegra_io_pad_find(pmc, id);
1691 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1695 if (pad->dpd == UINT_MAX)
1698 status = pad->status;
1699 mask = BIT(pad->dpd);
1701 value = tegra_pmc_readl(pmc, status);
1703 return !(value & mask);
1706 static int tegra_io_pad_set_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id,
1709 const struct tegra_io_pad_soc *pad;
1712 pad = tegra_io_pad_find(pmc, id);
1716 if (pad->voltage == UINT_MAX)
1719 mutex_lock(&pmc->powergates_lock);
1721 if (pmc->soc->has_impl_33v_pwr) {
1722 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1724 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1725 value &= ~BIT(pad->voltage);
1727 value |= BIT(pad->voltage);
1729 tegra_pmc_writel(pmc, value, PMC_IMPL_E_33V_PWR);
1731 /* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
1732 value = tegra_pmc_readl(pmc, PMC_PWR_DET);
1733 value |= BIT(pad->voltage);
1734 tegra_pmc_writel(pmc, value, PMC_PWR_DET);
1736 /* update I/O voltage */
1737 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1739 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1740 value &= ~BIT(pad->voltage);
1742 value |= BIT(pad->voltage);
1744 tegra_pmc_writel(pmc, value, PMC_PWR_DET_VALUE);
1747 mutex_unlock(&pmc->powergates_lock);
1749 usleep_range(100, 250);
1754 static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id)
1756 const struct tegra_io_pad_soc *pad;
1759 pad = tegra_io_pad_find(pmc, id);
1763 if (pad->voltage == UINT_MAX)
1766 if (pmc->soc->has_impl_33v_pwr)
1767 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1769 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1771 if ((value & BIT(pad->voltage)) == 0)
1772 return TEGRA_IO_PAD_VOLTAGE_1V8;
1774 return TEGRA_IO_PAD_VOLTAGE_3V3;
1777 #ifdef CONFIG_PM_SLEEP
1778 enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
1780 return pmc->suspend_mode;
1783 void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode)
1785 if (mode < TEGRA_SUSPEND_NONE || mode >= TEGRA_MAX_SUSPEND_MODE)
1788 pmc->suspend_mode = mode;
1791 void tegra_pmc_enter_suspend_mode(enum tegra_suspend_mode mode)
1793 unsigned long long rate = 0;
1798 case TEGRA_SUSPEND_LP1:
1802 case TEGRA_SUSPEND_LP2:
1810 if (WARN_ON_ONCE(rate == 0))
1813 ticks = pmc->cpu_good_time * rate + USEC_PER_SEC - 1;
1814 do_div(ticks, USEC_PER_SEC);
1815 tegra_pmc_writel(pmc, ticks, PMC_CPUPWRGOOD_TIMER);
1817 ticks = pmc->cpu_off_time * rate + USEC_PER_SEC - 1;
1818 do_div(ticks, USEC_PER_SEC);
1819 tegra_pmc_writel(pmc, ticks, PMC_CPUPWROFF_TIMER);
1821 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1822 value &= ~PMC_CNTRL_SIDE_EFFECT_LP0;
1823 value |= PMC_CNTRL_CPU_PWRREQ_OE;
1824 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1828 static int tegra_pmc_parse_dt(struct tegra_pmc *pmc, struct device_node *np)
1830 u32 value, values[2];
1832 if (of_property_read_u32(np, "nvidia,suspend-mode", &value)) {
1833 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1837 pmc->suspend_mode = TEGRA_SUSPEND_LP0;
1841 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1845 pmc->suspend_mode = TEGRA_SUSPEND_LP2;
1849 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1854 pmc->suspend_mode = tegra_pm_validate_suspend_mode(pmc->suspend_mode);
1856 if (of_property_read_u32(np, "nvidia,cpu-pwr-good-time", &value))
1857 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1859 pmc->cpu_good_time = value;
1861 if (of_property_read_u32(np, "nvidia,cpu-pwr-off-time", &value))
1862 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1864 pmc->cpu_off_time = value;
1866 if (of_property_read_u32_array(np, "nvidia,core-pwr-good-time",
1867 values, ARRAY_SIZE(values)))
1868 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1870 pmc->core_osc_time = values[0];
1871 pmc->core_pmu_time = values[1];
1873 if (of_property_read_u32(np, "nvidia,core-pwr-off-time", &value))
1874 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1876 pmc->core_off_time = value;
1878 pmc->corereq_high = of_property_read_bool(np,
1879 "nvidia,core-power-req-active-high");
1881 pmc->sysclkreq_high = of_property_read_bool(np,
1882 "nvidia,sys-clock-req-active-high");
1884 pmc->combined_req = of_property_read_bool(np,
1885 "nvidia,combined-power-req");
1887 pmc->cpu_pwr_good_en = of_property_read_bool(np,
1888 "nvidia,cpu-pwr-good-en");
1890 if (of_property_read_u32_array(np, "nvidia,lp0-vec", values,
1891 ARRAY_SIZE(values)))
1892 if (pmc->suspend_mode == TEGRA_SUSPEND_LP0)
1893 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1895 pmc->lp0_vec_phys = values[0];
1896 pmc->lp0_vec_size = values[1];
1901 static int tegra_pmc_init(struct tegra_pmc *pmc)
1903 if (pmc->soc->max_wake_events > 0) {
1904 pmc->wake_type_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1905 if (!pmc->wake_type_level_map)
1908 pmc->wake_type_dual_edge_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1909 if (!pmc->wake_type_dual_edge_map)
1912 pmc->wake_sw_status_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1913 if (!pmc->wake_sw_status_map)
1916 pmc->wake_cntrl_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1917 if (!pmc->wake_cntrl_level_map)
1922 pmc->soc->init(pmc);
1927 static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc)
1929 static const char disabled[] = "emergency thermal reset disabled";
1930 u32 pmu_addr, ctrl_id, reg_addr, reg_data, pinmux;
1931 struct device *dev = pmc->dev;
1932 struct device_node *np;
1933 u32 value, checksum;
1935 if (!pmc->soc->has_tsense_reset)
1938 np = of_get_child_by_name(pmc->dev->of_node, "i2c-thermtrip");
1940 dev_warn(dev, "i2c-thermtrip node not found, %s.\n", disabled);
1944 if (of_property_read_u32(np, "nvidia,i2c-controller-id", &ctrl_id)) {
1945 dev_err(dev, "I2C controller ID missing, %s.\n", disabled);
1949 if (of_property_read_u32(np, "nvidia,bus-addr", &pmu_addr)) {
1950 dev_err(dev, "nvidia,bus-addr missing, %s.\n", disabled);
1954 if (of_property_read_u32(np, "nvidia,reg-addr", ®_addr)) {
1955 dev_err(dev, "nvidia,reg-addr missing, %s.\n", disabled);
1959 if (of_property_read_u32(np, "nvidia,reg-data", ®_data)) {
1960 dev_err(dev, "nvidia,reg-data missing, %s.\n", disabled);
1964 if (of_property_read_u32(np, "nvidia,pinmux-id", &pinmux))
1967 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
1968 value |= PMC_SENSOR_CTRL_SCRATCH_WRITE;
1969 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
1971 value = (reg_data << PMC_SCRATCH54_DATA_SHIFT) |
1972 (reg_addr << PMC_SCRATCH54_ADDR_SHIFT);
1973 tegra_pmc_writel(pmc, value, PMC_SCRATCH54);
1975 value = PMC_SCRATCH55_RESET_TEGRA;
1976 value |= ctrl_id << PMC_SCRATCH55_CNTRL_ID_SHIFT;
1977 value |= pinmux << PMC_SCRATCH55_PINMUX_SHIFT;
1978 value |= pmu_addr << PMC_SCRATCH55_I2CSLV1_SHIFT;
1981 * Calculate checksum of SCRATCH54, SCRATCH55 fields. Bits 23:16 will
1982 * contain the checksum and are currently zero, so they are not added.
1984 checksum = reg_addr + reg_data + (value & 0xff) + ((value >> 8) & 0xff)
1985 + ((value >> 24) & 0xff);
1987 checksum = 0x100 - checksum;
1989 value |= checksum << PMC_SCRATCH55_CHECKSUM_SHIFT;
1991 tegra_pmc_writel(pmc, value, PMC_SCRATCH55);
1993 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
1994 value |= PMC_SENSOR_CTRL_ENABLE_RST;
1995 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
1997 dev_info(pmc->dev, "emergency thermal reset enabled\n");
2003 static int tegra_io_pad_pinctrl_get_groups_count(struct pinctrl_dev *pctl_dev)
2005 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2007 return pmc->soc->num_io_pads;
2010 static const char *tegra_io_pad_pinctrl_get_group_name(struct pinctrl_dev *pctl,
2013 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl);
2015 return pmc->soc->io_pads[group].name;
2018 static int tegra_io_pad_pinctrl_get_group_pins(struct pinctrl_dev *pctl_dev,
2020 const unsigned int **pins,
2021 unsigned int *num_pins)
2023 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2025 *pins = &pmc->soc->io_pads[group].id;
2031 static const struct pinctrl_ops tegra_io_pad_pinctrl_ops = {
2032 .get_groups_count = tegra_io_pad_pinctrl_get_groups_count,
2033 .get_group_name = tegra_io_pad_pinctrl_get_group_name,
2034 .get_group_pins = tegra_io_pad_pinctrl_get_group_pins,
2035 .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
2036 .dt_free_map = pinconf_generic_dt_free_map,
2039 static int tegra_io_pad_pinconf_get(struct pinctrl_dev *pctl_dev,
2040 unsigned int pin, unsigned long *config)
2042 enum pin_config_param param = pinconf_to_config_param(*config);
2043 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2044 const struct tegra_io_pad_soc *pad;
2048 pad = tegra_io_pad_find(pmc, pin);
2053 case PIN_CONFIG_POWER_SOURCE:
2054 ret = tegra_io_pad_get_voltage(pmc, pad->id);
2061 case PIN_CONFIG_MODE_LOW_POWER:
2062 ret = tegra_io_pad_is_powered(pmc, pad->id);
2073 *config = pinconf_to_config_packed(param, arg);
2078 static int tegra_io_pad_pinconf_set(struct pinctrl_dev *pctl_dev,
2079 unsigned int pin, unsigned long *configs,
2080 unsigned int num_configs)
2082 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2083 const struct tegra_io_pad_soc *pad;
2084 enum pin_config_param param;
2089 pad = tegra_io_pad_find(pmc, pin);
2093 for (i = 0; i < num_configs; ++i) {
2094 param = pinconf_to_config_param(configs[i]);
2095 arg = pinconf_to_config_argument(configs[i]);
2098 case PIN_CONFIG_MODE_LOW_POWER:
2100 err = tegra_io_pad_power_disable(pad->id);
2102 err = tegra_io_pad_power_enable(pad->id);
2106 case PIN_CONFIG_POWER_SOURCE:
2107 if (arg != TEGRA_IO_PAD_VOLTAGE_1V8 &&
2108 arg != TEGRA_IO_PAD_VOLTAGE_3V3)
2110 err = tegra_io_pad_set_voltage(pmc, pad->id, arg);
2122 static const struct pinconf_ops tegra_io_pad_pinconf_ops = {
2123 .pin_config_get = tegra_io_pad_pinconf_get,
2124 .pin_config_set = tegra_io_pad_pinconf_set,
2128 static struct pinctrl_desc tegra_pmc_pctl_desc = {
2129 .pctlops = &tegra_io_pad_pinctrl_ops,
2130 .confops = &tegra_io_pad_pinconf_ops,
2133 static int tegra_pmc_pinctrl_init(struct tegra_pmc *pmc)
2137 if (!pmc->soc->num_pin_descs)
2140 tegra_pmc_pctl_desc.name = dev_name(pmc->dev);
2141 tegra_pmc_pctl_desc.pins = pmc->soc->pin_descs;
2142 tegra_pmc_pctl_desc.npins = pmc->soc->num_pin_descs;
2144 pmc->pctl_dev = devm_pinctrl_register(pmc->dev, &tegra_pmc_pctl_desc,
2146 if (IS_ERR(pmc->pctl_dev)) {
2147 err = PTR_ERR(pmc->pctl_dev);
2148 dev_err(pmc->dev, "failed to register pin controller: %d\n",
2156 static ssize_t reset_reason_show(struct device *dev,
2157 struct device_attribute *attr, char *buf)
2161 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2162 value &= pmc->soc->regs->rst_source_mask;
2163 value >>= pmc->soc->regs->rst_source_shift;
2165 if (WARN_ON(value >= pmc->soc->num_reset_sources))
2166 return sprintf(buf, "%s\n", "UNKNOWN");
2168 return sprintf(buf, "%s\n", pmc->soc->reset_sources[value]);
2171 static DEVICE_ATTR_RO(reset_reason);
2173 static ssize_t reset_level_show(struct device *dev,
2174 struct device_attribute *attr, char *buf)
2178 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2179 value &= pmc->soc->regs->rst_level_mask;
2180 value >>= pmc->soc->regs->rst_level_shift;
2182 if (WARN_ON(value >= pmc->soc->num_reset_levels))
2183 return sprintf(buf, "%s\n", "UNKNOWN");
2185 return sprintf(buf, "%s\n", pmc->soc->reset_levels[value]);
2188 static DEVICE_ATTR_RO(reset_level);
2190 static void tegra_pmc_reset_sysfs_init(struct tegra_pmc *pmc)
2192 struct device *dev = pmc->dev;
2195 if (pmc->soc->reset_sources) {
2196 err = device_create_file(dev, &dev_attr_reset_reason);
2199 "failed to create attr \"reset_reason\": %d\n",
2203 if (pmc->soc->reset_levels) {
2204 err = device_create_file(dev, &dev_attr_reset_level);
2207 "failed to create attr \"reset_level\": %d\n",
2212 static int tegra_pmc_irq_translate(struct irq_domain *domain,
2213 struct irq_fwspec *fwspec,
2214 unsigned long *hwirq,
2217 if (WARN_ON(fwspec->param_count < 2))
2220 *hwirq = fwspec->param[0];
2221 *type = fwspec->param[1];
2226 static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
2227 unsigned int num_irqs, void *data)
2229 struct tegra_pmc *pmc = domain->host_data;
2230 const struct tegra_pmc_soc *soc = pmc->soc;
2231 struct irq_fwspec *fwspec = data;
2235 if (WARN_ON(num_irqs > 1))
2238 for (i = 0; i < soc->num_wake_events; i++) {
2239 const struct tegra_wake_event *event = &soc->wake_events[i];
2241 /* IRQ and simple wake events */
2242 if (fwspec->param_count == 2) {
2243 struct irq_fwspec spec;
2245 if (event->id != fwspec->param[0])
2248 err = irq_domain_set_hwirq_and_chip(domain, virq,
2254 /* simple hierarchies stop at the PMC level */
2255 if (event->irq == 0) {
2256 err = irq_domain_disconnect_hierarchy(domain->parent, virq);
2260 spec.fwnode = &pmc->dev->of_node->fwnode;
2261 spec.param_count = 3;
2262 spec.param[0] = GIC_SPI;
2263 spec.param[1] = event->irq;
2264 spec.param[2] = fwspec->param[1];
2266 err = irq_domain_alloc_irqs_parent(domain, virq,
2272 /* GPIO wake events */
2273 if (fwspec->param_count == 3) {
2274 if (event->gpio.instance != fwspec->param[0] ||
2275 event->gpio.pin != fwspec->param[1])
2278 err = irq_domain_set_hwirq_and_chip(domain, virq,
2282 /* GPIO hierarchies stop at the PMC level */
2283 if (!err && domain->parent)
2284 err = irq_domain_disconnect_hierarchy(domain->parent,
2290 /* If there is no wake-up event, there is no PMC mapping */
2291 if (i == soc->num_wake_events)
2292 err = irq_domain_disconnect_hierarchy(domain, virq);
2297 static const struct irq_domain_ops tegra_pmc_irq_domain_ops = {
2298 .translate = tegra_pmc_irq_translate,
2299 .alloc = tegra_pmc_irq_alloc,
2302 static int tegra210_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2304 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2305 unsigned int offset, bit;
2308 offset = data->hwirq / 32;
2309 bit = data->hwirq % 32;
2311 /* clear wake status */
2312 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE_STATUS);
2313 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE2_STATUS);
2315 tegra_pmc_writel(pmc, 0, PMC_WAKE_STATUS);
2316 tegra_pmc_writel(pmc, 0, PMC_WAKE2_STATUS);
2318 /* enable PMC wake */
2319 if (data->hwirq >= 32)
2320 offset = PMC_WAKE2_MASK;
2322 offset = PMC_WAKE_MASK;
2324 value = tegra_pmc_readl(pmc, offset);
2331 tegra_pmc_writel(pmc, value, offset);
2336 static int tegra210_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2338 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2339 unsigned int offset, bit;
2342 offset = data->hwirq / 32;
2343 bit = data->hwirq % 32;
2345 if (data->hwirq >= 32)
2346 offset = PMC_WAKE2_LEVEL;
2348 offset = PMC_WAKE_LEVEL;
2350 value = tegra_pmc_readl(pmc, offset);
2353 case IRQ_TYPE_EDGE_RISING:
2354 case IRQ_TYPE_LEVEL_HIGH:
2358 case IRQ_TYPE_EDGE_FALLING:
2359 case IRQ_TYPE_LEVEL_LOW:
2363 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2371 tegra_pmc_writel(pmc, value, offset);
2376 static void tegra186_pmc_set_wake_filters(struct tegra_pmc *pmc)
2380 /* SW Wake (wake83) needs SR_CAPTURE filter to be enabled */
2381 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID));
2382 value |= WAKE_AOWAKE_CNTRL_SR_CAPTURE_EN;
2383 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(SW_WAKE_ID));
2384 dev_dbg(pmc->dev, "WAKE_AOWAKE_CNTRL_83 = 0x%x\n", value);
2387 static int tegra186_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2389 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2390 unsigned int offset, bit;
2393 offset = data->hwirq / 32;
2394 bit = data->hwirq % 32;
2396 /* clear wake status */
2397 writel(0x1, pmc->wake + WAKE_AOWAKE_STATUS_W(data->hwirq));
2399 /* route wake to tier 2 */
2400 value = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2403 value &= ~(1 << bit);
2407 writel(value, pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2409 /* enable wakeup event */
2410 writel(!!on, pmc->wake + WAKE_AOWAKE_MASK_W(data->hwirq));
2415 static int tegra186_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2417 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2420 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2423 case IRQ_TYPE_EDGE_RISING:
2424 case IRQ_TYPE_LEVEL_HIGH:
2425 value |= WAKE_AOWAKE_CNTRL_LEVEL;
2426 set_bit(data->hwirq, pmc->wake_type_level_map);
2427 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2430 case IRQ_TYPE_EDGE_FALLING:
2431 case IRQ_TYPE_LEVEL_LOW:
2432 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
2433 clear_bit(data->hwirq, pmc->wake_type_level_map);
2434 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2437 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2438 value ^= WAKE_AOWAKE_CNTRL_LEVEL;
2439 clear_bit(data->hwirq, pmc->wake_type_level_map);
2440 set_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2447 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2452 static void tegra_irq_mask_parent(struct irq_data *data)
2454 if (data->parent_data)
2455 irq_chip_mask_parent(data);
2458 static void tegra_irq_unmask_parent(struct irq_data *data)
2460 if (data->parent_data)
2461 irq_chip_unmask_parent(data);
2464 static void tegra_irq_eoi_parent(struct irq_data *data)
2466 if (data->parent_data)
2467 irq_chip_eoi_parent(data);
2470 static int tegra_irq_set_affinity_parent(struct irq_data *data,
2471 const struct cpumask *dest,
2474 if (data->parent_data)
2475 return irq_chip_set_affinity_parent(data, dest, force);
2480 static int tegra_pmc_irq_init(struct tegra_pmc *pmc)
2482 struct irq_domain *parent = NULL;
2483 struct device_node *np;
2485 np = of_irq_find_parent(pmc->dev->of_node);
2487 parent = irq_find_host(np);
2494 pmc->irq.name = dev_name(pmc->dev);
2495 pmc->irq.irq_mask = tegra_irq_mask_parent;
2496 pmc->irq.irq_unmask = tegra_irq_unmask_parent;
2497 pmc->irq.irq_eoi = tegra_irq_eoi_parent;
2498 pmc->irq.irq_set_affinity = tegra_irq_set_affinity_parent;
2499 pmc->irq.irq_set_type = pmc->soc->irq_set_type;
2500 pmc->irq.irq_set_wake = pmc->soc->irq_set_wake;
2502 pmc->domain = irq_domain_add_hierarchy(parent, 0, 96, pmc->dev->of_node,
2503 &tegra_pmc_irq_domain_ops, pmc);
2505 dev_err(pmc->dev, "failed to allocate domain\n");
2512 static int tegra_pmc_clk_notify_cb(struct notifier_block *nb,
2513 unsigned long action, void *ptr)
2515 struct tegra_pmc *pmc = container_of(nb, struct tegra_pmc, clk_nb);
2516 struct clk_notifier_data *data = ptr;
2519 case PRE_RATE_CHANGE:
2520 mutex_lock(&pmc->powergates_lock);
2523 case POST_RATE_CHANGE:
2524 pmc->rate = data->new_rate;
2527 case ABORT_RATE_CHANGE:
2528 mutex_unlock(&pmc->powergates_lock);
2533 return notifier_from_errno(-EINVAL);
2539 static void pmc_clk_fence_udelay(u32 offset)
2541 tegra_pmc_readl(pmc, offset);
2542 /* pmc clk propagation delay 2 us */
2546 static u8 pmc_clk_mux_get_parent(struct clk_hw *hw)
2548 struct pmc_clk *clk = to_pmc_clk(hw);
2551 val = tegra_pmc_readl(pmc, clk->offs) >> clk->mux_shift;
2552 val &= PMC_CLK_OUT_MUX_MASK;
2557 static int pmc_clk_mux_set_parent(struct clk_hw *hw, u8 index)
2559 struct pmc_clk *clk = to_pmc_clk(hw);
2562 val = tegra_pmc_readl(pmc, clk->offs);
2563 val &= ~(PMC_CLK_OUT_MUX_MASK << clk->mux_shift);
2564 val |= index << clk->mux_shift;
2565 tegra_pmc_writel(pmc, val, clk->offs);
2566 pmc_clk_fence_udelay(clk->offs);
2571 static int pmc_clk_is_enabled(struct clk_hw *hw)
2573 struct pmc_clk *clk = to_pmc_clk(hw);
2576 val = tegra_pmc_readl(pmc, clk->offs) & BIT(clk->force_en_shift);
2581 static void pmc_clk_set_state(unsigned long offs, u32 shift, int state)
2585 val = tegra_pmc_readl(pmc, offs);
2586 val = state ? (val | BIT(shift)) : (val & ~BIT(shift));
2587 tegra_pmc_writel(pmc, val, offs);
2588 pmc_clk_fence_udelay(offs);
2591 static int pmc_clk_enable(struct clk_hw *hw)
2593 struct pmc_clk *clk = to_pmc_clk(hw);
2595 pmc_clk_set_state(clk->offs, clk->force_en_shift, 1);
2600 static void pmc_clk_disable(struct clk_hw *hw)
2602 struct pmc_clk *clk = to_pmc_clk(hw);
2604 pmc_clk_set_state(clk->offs, clk->force_en_shift, 0);
2607 static const struct clk_ops pmc_clk_ops = {
2608 .get_parent = pmc_clk_mux_get_parent,
2609 .set_parent = pmc_clk_mux_set_parent,
2610 .determine_rate = __clk_mux_determine_rate,
2611 .is_enabled = pmc_clk_is_enabled,
2612 .enable = pmc_clk_enable,
2613 .disable = pmc_clk_disable,
2617 tegra_pmc_clk_out_register(struct tegra_pmc *pmc,
2618 const struct pmc_clk_init_data *data,
2619 unsigned long offset)
2621 struct clk_init_data init;
2622 struct pmc_clk *pmc_clk;
2624 pmc_clk = devm_kzalloc(pmc->dev, sizeof(*pmc_clk), GFP_KERNEL);
2626 return ERR_PTR(-ENOMEM);
2628 init.name = data->name;
2629 init.ops = &pmc_clk_ops;
2630 init.parent_names = data->parents;
2631 init.num_parents = data->num_parents;
2632 init.flags = CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT |
2633 CLK_SET_PARENT_GATE;
2635 pmc_clk->hw.init = &init;
2636 pmc_clk->offs = offset;
2637 pmc_clk->mux_shift = data->mux_shift;
2638 pmc_clk->force_en_shift = data->force_en_shift;
2640 return clk_register(NULL, &pmc_clk->hw);
2643 static int pmc_clk_gate_is_enabled(struct clk_hw *hw)
2645 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2647 return tegra_pmc_readl(pmc, gate->offs) & BIT(gate->shift) ? 1 : 0;
2650 static int pmc_clk_gate_enable(struct clk_hw *hw)
2652 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2654 pmc_clk_set_state(gate->offs, gate->shift, 1);
2659 static void pmc_clk_gate_disable(struct clk_hw *hw)
2661 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2663 pmc_clk_set_state(gate->offs, gate->shift, 0);
2666 static const struct clk_ops pmc_clk_gate_ops = {
2667 .is_enabled = pmc_clk_gate_is_enabled,
2668 .enable = pmc_clk_gate_enable,
2669 .disable = pmc_clk_gate_disable,
2673 tegra_pmc_clk_gate_register(struct tegra_pmc *pmc, const char *name,
2674 const char *parent_name, unsigned long offset,
2677 struct clk_init_data init;
2678 struct pmc_clk_gate *gate;
2680 gate = devm_kzalloc(pmc->dev, sizeof(*gate), GFP_KERNEL);
2682 return ERR_PTR(-ENOMEM);
2685 init.ops = &pmc_clk_gate_ops;
2686 init.parent_names = &parent_name;
2687 init.num_parents = 1;
2690 gate->hw.init = &init;
2691 gate->offs = offset;
2692 gate->shift = shift;
2694 return clk_register(NULL, &gate->hw);
2697 static void tegra_pmc_clock_register(struct tegra_pmc *pmc,
2698 struct device_node *np)
2701 struct clk_onecell_data *clk_data;
2702 unsigned int num_clks;
2705 num_clks = pmc->soc->num_pmc_clks;
2706 if (pmc->soc->has_blink_output)
2712 clk_data = devm_kmalloc(pmc->dev, sizeof(*clk_data), GFP_KERNEL);
2716 clk_data->clks = devm_kcalloc(pmc->dev, TEGRA_PMC_CLK_MAX,
2717 sizeof(*clk_data->clks), GFP_KERNEL);
2718 if (!clk_data->clks)
2721 clk_data->clk_num = TEGRA_PMC_CLK_MAX;
2723 for (i = 0; i < TEGRA_PMC_CLK_MAX; i++)
2724 clk_data->clks[i] = ERR_PTR(-ENOENT);
2726 for (i = 0; i < pmc->soc->num_pmc_clks; i++) {
2727 const struct pmc_clk_init_data *data;
2729 data = pmc->soc->pmc_clks_data + i;
2731 clk = tegra_pmc_clk_out_register(pmc, data, PMC_CLK_OUT_CNTRL);
2733 dev_warn(pmc->dev, "unable to register clock %s: %d\n",
2734 data->name, PTR_ERR_OR_ZERO(clk));
2738 err = clk_register_clkdev(clk, data->name, NULL);
2741 "unable to register %s clock lookup: %d\n",
2746 clk_data->clks[data->clk_id] = clk;
2749 if (pmc->soc->has_blink_output) {
2750 tegra_pmc_writel(pmc, 0x0, PMC_BLINK_TIMER);
2751 clk = tegra_pmc_clk_gate_register(pmc,
2752 "pmc_blink_override",
2755 PMC_DPD_PADS_ORIDE_BLINK);
2758 "unable to register pmc_blink_override: %d\n",
2759 PTR_ERR_OR_ZERO(clk));
2763 clk = tegra_pmc_clk_gate_register(pmc, "pmc_blink",
2764 "pmc_blink_override",
2766 PMC_CNTRL_BLINK_EN);
2769 "unable to register pmc_blink: %d\n",
2770 PTR_ERR_OR_ZERO(clk));
2774 err = clk_register_clkdev(clk, "pmc_blink", NULL);
2777 "unable to register pmc_blink lookup: %d\n",
2782 clk_data->clks[TEGRA_PMC_CLK_BLINK] = clk;
2785 err = of_clk_add_provider(np, of_clk_src_onecell_get, clk_data);
2787 dev_warn(pmc->dev, "failed to add pmc clock provider: %d\n",
2791 static const struct regmap_range pmc_usb_sleepwalk_ranges[] = {
2792 regmap_reg_range(PMC_USB_DEBOUNCE_DEL, PMC_USB_AO),
2793 regmap_reg_range(PMC_UTMIP_UHSIC_TRIGGERS, PMC_UTMIP_UHSIC_SAVED_STATE),
2794 regmap_reg_range(PMC_UTMIP_TERM_PAD_CFG, PMC_UTMIP_UHSIC_FAKE),
2795 regmap_reg_range(PMC_UTMIP_UHSIC_LINE_WAKEUP, PMC_UTMIP_UHSIC_LINE_WAKEUP),
2796 regmap_reg_range(PMC_UTMIP_BIAS_MASTER_CNTRL, PMC_UTMIP_MASTER_CONFIG),
2797 regmap_reg_range(PMC_UTMIP_UHSIC2_TRIGGERS, PMC_UTMIP_MASTER2_CONFIG),
2798 regmap_reg_range(PMC_UTMIP_PAD_CFG0, PMC_UTMIP_UHSIC_SLEEP_CFG1),
2799 regmap_reg_range(PMC_UTMIP_SLEEPWALK_P3, PMC_UTMIP_SLEEPWALK_P3),
2802 static const struct regmap_access_table pmc_usb_sleepwalk_table = {
2803 .yes_ranges = pmc_usb_sleepwalk_ranges,
2804 .n_yes_ranges = ARRAY_SIZE(pmc_usb_sleepwalk_ranges),
2807 static int tegra_pmc_regmap_readl(void *context, unsigned int offset, unsigned int *value)
2809 struct tegra_pmc *pmc = context;
2811 *value = tegra_pmc_readl(pmc, offset);
2815 static int tegra_pmc_regmap_writel(void *context, unsigned int offset, unsigned int value)
2817 struct tegra_pmc *pmc = context;
2819 tegra_pmc_writel(pmc, value, offset);
2823 static const struct regmap_config usb_sleepwalk_regmap_config = {
2824 .name = "usb_sleepwalk",
2829 .rd_table = &pmc_usb_sleepwalk_table,
2830 .wr_table = &pmc_usb_sleepwalk_table,
2831 .reg_read = tegra_pmc_regmap_readl,
2832 .reg_write = tegra_pmc_regmap_writel,
2835 static int tegra_pmc_regmap_init(struct tegra_pmc *pmc)
2837 struct regmap *regmap;
2840 if (pmc->soc->has_usb_sleepwalk) {
2841 regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config);
2842 if (IS_ERR(regmap)) {
2843 err = PTR_ERR(regmap);
2844 dev_err(pmc->dev, "failed to allocate register map (%d)\n", err);
2852 static void tegra_pmc_reset_suspend_mode(void *data)
2854 pmc->suspend_mode = TEGRA_SUSPEND_NOT_READY;
2857 static int tegra_pmc_probe(struct platform_device *pdev)
2860 struct resource *res;
2864 * Early initialisation should have configured an initial
2865 * register mapping and setup the soc data pointer. If these
2866 * are not valid then something went badly wrong!
2868 if (WARN_ON(!pmc->base || !pmc->soc))
2871 err = tegra_pmc_parse_dt(pmc, pdev->dev.of_node);
2875 err = devm_add_action_or_reset(&pdev->dev, tegra_pmc_reset_suspend_mode,
2880 /* take over the memory region from the early initialization */
2881 base = devm_platform_ioremap_resource(pdev, 0);
2883 return PTR_ERR(base);
2885 if (pmc->soc->has_single_mmio_aperture) {
2888 pmc->scratch = base;
2890 pmc->wake = devm_platform_ioremap_resource_byname(pdev, "wake");
2891 if (IS_ERR(pmc->wake))
2892 return PTR_ERR(pmc->wake);
2894 pmc->aotag = devm_platform_ioremap_resource_byname(pdev, "aotag");
2895 if (IS_ERR(pmc->aotag))
2896 return PTR_ERR(pmc->aotag);
2898 /* "scratch" is an optional aperture */
2899 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
2902 pmc->scratch = devm_ioremap_resource(&pdev->dev, res);
2903 if (IS_ERR(pmc->scratch))
2904 return PTR_ERR(pmc->scratch);
2906 pmc->scratch = NULL;
2910 pmc->clk = devm_clk_get_optional(&pdev->dev, "pclk");
2911 if (IS_ERR(pmc->clk))
2912 return dev_err_probe(&pdev->dev, PTR_ERR(pmc->clk),
2913 "failed to get pclk\n");
2916 * PMC should be last resort for restarting since it soft-resets
2917 * CPU without resetting everything else.
2920 err = devm_register_reboot_notifier(&pdev->dev,
2921 &tegra_pmc_reboot_notifier);
2924 "unable to register reboot notifier, %d\n",
2930 err = devm_register_sys_off_handler(&pdev->dev,
2931 SYS_OFF_MODE_RESTART,
2933 tegra_pmc_restart_handler, NULL);
2935 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
2941 * PMC should be primary power-off method if it soft-resets CPU,
2942 * asking bootloader to shutdown hardware.
2944 err = devm_register_sys_off_handler(&pdev->dev,
2945 SYS_OFF_MODE_POWER_OFF,
2946 SYS_OFF_PRIO_FIRMWARE,
2947 tegra_pmc_power_off_handler, NULL);
2949 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
2955 * PCLK clock rate can't be retrieved using CLK API because it
2956 * causes lockup if CPU enters LP2 idle state from some other
2957 * CLK notifier, hence we're caching the rate's value locally.
2960 pmc->clk_nb.notifier_call = tegra_pmc_clk_notify_cb;
2961 err = devm_clk_notifier_register(&pdev->dev, pmc->clk,
2965 "failed to register clk notifier\n");
2969 pmc->rate = clk_get_rate(pmc->clk);
2972 pmc->dev = &pdev->dev;
2974 err = tegra_pmc_init(pmc);
2976 dev_err(&pdev->dev, "failed to initialize PMC: %d\n", err);
2980 tegra_pmc_init_tsense_reset(pmc);
2982 tegra_pmc_reset_sysfs_init(pmc);
2984 err = tegra_pmc_pinctrl_init(pmc);
2988 err = tegra_pmc_regmap_init(pmc);
2992 err = tegra_powergate_init(pmc, pdev->dev.of_node);
2994 goto cleanup_powergates;
2996 err = tegra_pmc_irq_init(pmc);
2998 goto cleanup_powergates;
3000 mutex_lock(&pmc->powergates_lock);
3003 mutex_unlock(&pmc->powergates_lock);
3005 tegra_pmc_clock_register(pmc, pdev->dev.of_node);
3006 platform_set_drvdata(pdev, pmc);
3007 tegra_pm_init_suspend();
3009 /* Some wakes require specific filter configuration */
3010 if (pmc->soc->set_wake_filters)
3011 pmc->soc->set_wake_filters(pmc);
3013 debugfs_create_file("powergate", 0444, NULL, NULL, &powergate_fops);
3018 tegra_powergate_remove_all(pdev->dev.of_node);
3020 device_remove_file(&pdev->dev, &dev_attr_reset_reason);
3021 device_remove_file(&pdev->dev, &dev_attr_reset_level);
3027 * Ensures that sufficient time is passed for a register write to
3028 * serialize into the 32KHz domain.
3030 static void wke_32kwritel(struct tegra_pmc *pmc, u32 value, unsigned int offset)
3032 writel(value, pmc->wake + offset);
3036 static void wke_write_wake_level(struct tegra_pmc *pmc, int wake, int level)
3038 unsigned int offset = WAKE_AOWAKE_CNTRL(wake);
3041 value = readl(pmc->wake + offset);
3043 value |= WAKE_AOWAKE_CNTRL_LEVEL;
3045 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
3047 writel(value, pmc->wake + offset);
3050 static void wke_write_wake_levels(struct tegra_pmc *pmc)
3054 for (i = 0; i < pmc->soc->max_wake_events; i++)
3055 wke_write_wake_level(pmc, i, test_bit(i, pmc->wake_cntrl_level_map));
3058 static void wke_clear_sw_wake_status(struct tegra_pmc *pmc)
3060 wke_32kwritel(pmc, 1, WAKE_AOWAKE_SW_STATUS_W_0);
3063 static void wke_read_sw_wake_status(struct tegra_pmc *pmc)
3065 unsigned long status;
3066 unsigned int wake, i;
3068 for (i = 0; i < pmc->soc->max_wake_events; i++)
3069 wke_write_wake_level(pmc, i, 0);
3071 wke_clear_sw_wake_status(pmc);
3073 wke_32kwritel(pmc, 1, WAKE_LATCH_SW);
3076 * WAKE_AOWAKE_SW_STATUS is edge triggered, so in order to
3077 * obtain the current status of the input wake signals, change
3078 * the polarity of the wake level from 0->1 while latching to force
3079 * a positive edge if the sampled signal is '1'.
3081 for (i = 0; i < pmc->soc->max_wake_events; i++)
3082 wke_write_wake_level(pmc, i, 1);
3085 * Wait for the update to be synced into the 32kHz domain,
3086 * and let enough time lapse, so that the wake signals have time to
3091 wke_32kwritel(pmc, 0, WAKE_LATCH_SW);
3093 bitmap_zero(pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3095 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3096 status = readl(pmc->wake + WAKE_AOWAKE_SW_STATUS(i));
3098 for_each_set_bit(wake, &status, 32)
3099 set_bit(wake + (i * 32), pmc->wake_sw_status_map);
3103 static void wke_clear_wake_status(struct tegra_pmc *pmc)
3105 unsigned long status;
3106 unsigned int i, wake;
3109 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3110 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3111 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3113 for_each_set_bit(wake, &status, 32)
3114 wke_32kwritel(pmc, 0x1, WAKE_AOWAKE_STATUS_W((i * 32) + wake));
3118 /* translate sc7 wake sources back into IRQs to catch edge triggered wakeups */
3119 static void tegra186_pmc_process_wake_events(struct tegra_pmc *pmc, unsigned int index,
3120 unsigned long status)
3124 dev_dbg(pmc->dev, "Wake[%d:%d] status=%#lx\n", (index * 32) + 31, index * 32, status);
3126 for_each_set_bit(wake, &status, 32) {
3127 irq_hw_number_t hwirq = wake + 32 * index;
3128 struct irq_desc *desc;
3131 irq = irq_find_mapping(pmc->domain, hwirq);
3133 desc = irq_to_desc(irq);
3134 if (!desc || !desc->action || !desc->action->name) {
3135 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, IRQ %d\n", hwirq, irq);
3139 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, %s\n", hwirq, desc->action->name);
3140 generic_handle_irq(irq);
3144 static void tegra186_pmc_wake_syscore_resume(void)
3149 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3150 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3151 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3153 tegra186_pmc_process_wake_events(pmc, i, status);
3157 static int tegra186_pmc_wake_syscore_suspend(void)
3159 wke_read_sw_wake_status(pmc);
3161 /* flip the wakeup trigger for dual-edge triggered pads
3162 * which are currently asserting as wakeups
3164 bitmap_andnot(pmc->wake_cntrl_level_map, pmc->wake_type_dual_edge_map,
3165 pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3166 bitmap_or(pmc->wake_cntrl_level_map, pmc->wake_cntrl_level_map,
3167 pmc->wake_type_level_map, pmc->soc->max_wake_events);
3169 /* Clear PMC Wake Status registers while going to suspend */
3170 wke_clear_wake_status(pmc);
3171 wke_write_wake_levels(pmc);
3176 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
3177 static int tegra_pmc_suspend(struct device *dev)
3179 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3181 tegra_pmc_writel(pmc, virt_to_phys(tegra_resume), PMC_SCRATCH41);
3186 static int tegra_pmc_resume(struct device *dev)
3188 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3190 tegra_pmc_writel(pmc, 0x0, PMC_SCRATCH41);
3195 static SIMPLE_DEV_PM_OPS(tegra_pmc_pm_ops, tegra_pmc_suspend, tegra_pmc_resume);
3199 static const char * const tegra20_powergates[] = {
3200 [TEGRA_POWERGATE_CPU] = "cpu",
3201 [TEGRA_POWERGATE_3D] = "td",
3202 [TEGRA_POWERGATE_VENC] = "venc",
3203 [TEGRA_POWERGATE_VDEC] = "vdec",
3204 [TEGRA_POWERGATE_PCIE] = "pcie",
3205 [TEGRA_POWERGATE_L2] = "l2",
3206 [TEGRA_POWERGATE_MPE] = "mpe",
3209 static const struct tegra_pmc_regs tegra20_pmc_regs = {
3211 .rst_status = 0x1b4,
3212 .rst_source_shift = 0x0,
3213 .rst_source_mask = 0x7,
3214 .rst_level_shift = 0x0,
3215 .rst_level_mask = 0x0,
3218 static void tegra20_pmc_init(struct tegra_pmc *pmc)
3220 u32 value, osc, pmu, off;
3222 /* Always enable CPU power request */
3223 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3224 value |= PMC_CNTRL_CPU_PWRREQ_OE;
3225 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3227 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3229 if (pmc->sysclkreq_high)
3230 value &= ~PMC_CNTRL_SYSCLK_POLARITY;
3232 value |= PMC_CNTRL_SYSCLK_POLARITY;
3234 if (pmc->corereq_high)
3235 value &= ~PMC_CNTRL_PWRREQ_POLARITY;
3237 value |= PMC_CNTRL_PWRREQ_POLARITY;
3239 /* configure the output polarity while the request is tristated */
3240 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3242 /* now enable the request */
3243 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3244 value |= PMC_CNTRL_SYSCLK_OE;
3245 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3247 /* program core timings which are applicable only for suspend state */
3248 if (pmc->suspend_mode != TEGRA_SUSPEND_NONE) {
3249 osc = DIV_ROUND_UP(pmc->core_osc_time * 8192, 1000000);
3250 pmu = DIV_ROUND_UP(pmc->core_pmu_time * 32768, 1000000);
3251 off = DIV_ROUND_UP(pmc->core_off_time * 32768, 1000000);
3252 tegra_pmc_writel(pmc, ((osc << 8) & 0xff00) | (pmu & 0xff),
3253 PMC_COREPWRGOOD_TIMER);
3254 tegra_pmc_writel(pmc, off, PMC_COREPWROFF_TIMER);
3258 static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3259 struct device_node *np,
3264 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3267 value |= PMC_CNTRL_INTR_POLARITY;
3269 value &= ~PMC_CNTRL_INTR_POLARITY;
3271 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3274 static const struct tegra_pmc_soc tegra20_pmc_soc = {
3275 .supports_core_domain = true,
3276 .num_powergates = ARRAY_SIZE(tegra20_powergates),
3277 .powergates = tegra20_powergates,
3278 .num_cpu_powergates = 0,
3279 .cpu_powergates = NULL,
3280 .has_tsense_reset = false,
3281 .has_gpu_clamps = false,
3282 .needs_mbist_war = false,
3283 .has_impl_33v_pwr = false,
3284 .maybe_tz_only = false,
3289 .regs = &tegra20_pmc_regs,
3290 .init = tegra20_pmc_init,
3291 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3292 .powergate_set = tegra20_powergate_set,
3293 .reset_sources = NULL,
3294 .num_reset_sources = 0,
3295 .reset_levels = NULL,
3296 .num_reset_levels = 0,
3297 .pmc_clks_data = NULL,
3299 .has_blink_output = true,
3300 .has_usb_sleepwalk = true,
3301 .has_single_mmio_aperture = true,
3304 static const char * const tegra30_powergates[] = {
3305 [TEGRA_POWERGATE_CPU] = "cpu0",
3306 [TEGRA_POWERGATE_3D] = "td",
3307 [TEGRA_POWERGATE_VENC] = "venc",
3308 [TEGRA_POWERGATE_VDEC] = "vdec",
3309 [TEGRA_POWERGATE_PCIE] = "pcie",
3310 [TEGRA_POWERGATE_L2] = "l2",
3311 [TEGRA_POWERGATE_MPE] = "mpe",
3312 [TEGRA_POWERGATE_HEG] = "heg",
3313 [TEGRA_POWERGATE_SATA] = "sata",
3314 [TEGRA_POWERGATE_CPU1] = "cpu1",
3315 [TEGRA_POWERGATE_CPU2] = "cpu2",
3316 [TEGRA_POWERGATE_CPU3] = "cpu3",
3317 [TEGRA_POWERGATE_CELP] = "celp",
3318 [TEGRA_POWERGATE_3D1] = "td2",
3321 static const u8 tegra30_cpu_powergates[] = {
3322 TEGRA_POWERGATE_CPU,
3323 TEGRA_POWERGATE_CPU1,
3324 TEGRA_POWERGATE_CPU2,
3325 TEGRA_POWERGATE_CPU3,
3328 static const char * const tegra30_reset_sources[] = {
3336 static const struct tegra_pmc_soc tegra30_pmc_soc = {
3337 .supports_core_domain = true,
3338 .num_powergates = ARRAY_SIZE(tegra30_powergates),
3339 .powergates = tegra30_powergates,
3340 .num_cpu_powergates = ARRAY_SIZE(tegra30_cpu_powergates),
3341 .cpu_powergates = tegra30_cpu_powergates,
3342 .has_tsense_reset = true,
3343 .has_gpu_clamps = false,
3344 .needs_mbist_war = false,
3345 .has_impl_33v_pwr = false,
3346 .maybe_tz_only = false,
3351 .regs = &tegra20_pmc_regs,
3352 .init = tegra20_pmc_init,
3353 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3354 .powergate_set = tegra20_powergate_set,
3355 .reset_sources = tegra30_reset_sources,
3356 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3357 .reset_levels = NULL,
3358 .num_reset_levels = 0,
3359 .pmc_clks_data = tegra_pmc_clks_data,
3360 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3361 .has_blink_output = true,
3362 .has_usb_sleepwalk = true,
3363 .has_single_mmio_aperture = true,
3366 static const char * const tegra114_powergates[] = {
3367 [TEGRA_POWERGATE_CPU] = "crail",
3368 [TEGRA_POWERGATE_3D] = "td",
3369 [TEGRA_POWERGATE_VENC] = "venc",
3370 [TEGRA_POWERGATE_VDEC] = "vdec",
3371 [TEGRA_POWERGATE_MPE] = "mpe",
3372 [TEGRA_POWERGATE_HEG] = "heg",
3373 [TEGRA_POWERGATE_CPU1] = "cpu1",
3374 [TEGRA_POWERGATE_CPU2] = "cpu2",
3375 [TEGRA_POWERGATE_CPU3] = "cpu3",
3376 [TEGRA_POWERGATE_CELP] = "celp",
3377 [TEGRA_POWERGATE_CPU0] = "cpu0",
3378 [TEGRA_POWERGATE_C0NC] = "c0nc",
3379 [TEGRA_POWERGATE_C1NC] = "c1nc",
3380 [TEGRA_POWERGATE_DIS] = "dis",
3381 [TEGRA_POWERGATE_DISB] = "disb",
3382 [TEGRA_POWERGATE_XUSBA] = "xusba",
3383 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3384 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3387 static const u8 tegra114_cpu_powergates[] = {
3388 TEGRA_POWERGATE_CPU0,
3389 TEGRA_POWERGATE_CPU1,
3390 TEGRA_POWERGATE_CPU2,
3391 TEGRA_POWERGATE_CPU3,
3394 static const struct tegra_pmc_soc tegra114_pmc_soc = {
3395 .supports_core_domain = false,
3396 .num_powergates = ARRAY_SIZE(tegra114_powergates),
3397 .powergates = tegra114_powergates,
3398 .num_cpu_powergates = ARRAY_SIZE(tegra114_cpu_powergates),
3399 .cpu_powergates = tegra114_cpu_powergates,
3400 .has_tsense_reset = true,
3401 .has_gpu_clamps = false,
3402 .needs_mbist_war = false,
3403 .has_impl_33v_pwr = false,
3404 .maybe_tz_only = false,
3409 .regs = &tegra20_pmc_regs,
3410 .init = tegra20_pmc_init,
3411 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3412 .powergate_set = tegra114_powergate_set,
3413 .reset_sources = tegra30_reset_sources,
3414 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3415 .reset_levels = NULL,
3416 .num_reset_levels = 0,
3417 .pmc_clks_data = tegra_pmc_clks_data,
3418 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3419 .has_blink_output = true,
3420 .has_usb_sleepwalk = true,
3421 .has_single_mmio_aperture = true,
3424 static const char * const tegra124_powergates[] = {
3425 [TEGRA_POWERGATE_CPU] = "crail",
3426 [TEGRA_POWERGATE_3D] = "3d",
3427 [TEGRA_POWERGATE_VENC] = "venc",
3428 [TEGRA_POWERGATE_PCIE] = "pcie",
3429 [TEGRA_POWERGATE_VDEC] = "vdec",
3430 [TEGRA_POWERGATE_MPE] = "mpe",
3431 [TEGRA_POWERGATE_HEG] = "heg",
3432 [TEGRA_POWERGATE_SATA] = "sata",
3433 [TEGRA_POWERGATE_CPU1] = "cpu1",
3434 [TEGRA_POWERGATE_CPU2] = "cpu2",
3435 [TEGRA_POWERGATE_CPU3] = "cpu3",
3436 [TEGRA_POWERGATE_CELP] = "celp",
3437 [TEGRA_POWERGATE_CPU0] = "cpu0",
3438 [TEGRA_POWERGATE_C0NC] = "c0nc",
3439 [TEGRA_POWERGATE_C1NC] = "c1nc",
3440 [TEGRA_POWERGATE_SOR] = "sor",
3441 [TEGRA_POWERGATE_DIS] = "dis",
3442 [TEGRA_POWERGATE_DISB] = "disb",
3443 [TEGRA_POWERGATE_XUSBA] = "xusba",
3444 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3445 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3446 [TEGRA_POWERGATE_VIC] = "vic",
3447 [TEGRA_POWERGATE_IRAM] = "iram",
3450 static const u8 tegra124_cpu_powergates[] = {
3451 TEGRA_POWERGATE_CPU0,
3452 TEGRA_POWERGATE_CPU1,
3453 TEGRA_POWERGATE_CPU2,
3454 TEGRA_POWERGATE_CPU3,
3457 #define TEGRA_IO_PAD(_id, _dpd, _request, _status, _voltage, _name) \
3458 ((struct tegra_io_pad_soc) { \
3461 .request = (_request), \
3462 .status = (_status), \
3463 .voltage = (_voltage), \
3467 #define TEGRA_IO_PIN_DESC(_id, _name) \
3468 ((struct pinctrl_pin_desc) { \
3473 static const struct tegra_io_pad_soc tegra124_io_pads[] = {
3474 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, UINT_MAX, "audio"),
3475 TEGRA_IO_PAD(TEGRA_IO_PAD_BB, 15, 0x1b8, 0x1bc, UINT_MAX, "bb"),
3476 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, UINT_MAX, "cam"),
3477 TEGRA_IO_PAD(TEGRA_IO_PAD_COMP, 22, 0x1b8, 0x1bc, UINT_MAX, "comp"),
3478 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3479 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3480 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3481 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3482 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3483 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3484 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3485 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3486 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3487 TEGRA_IO_PAD(TEGRA_IO_PAD_HV, 6, 0x1c0, 0x1c4, UINT_MAX, "hv"),
3488 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3489 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3490 TEGRA_IO_PAD(TEGRA_IO_PAD_NAND, 13, 0x1b8, 0x1bc, UINT_MAX, "nand"),
3491 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3492 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3493 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3494 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x1c0, 0x1c4, UINT_MAX, "pex-cntrl"),
3495 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, UINT_MAX, "sdmmc1"),
3496 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, UINT_MAX, "sdmmc3"),
3497 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 3, 0x1c0, 0x1c4, UINT_MAX, "sdmmc4"),
3498 TEGRA_IO_PAD(TEGRA_IO_PAD_SYS_DDC, 26, 0x1c0, 0x1c4, UINT_MAX, "sys_ddc"),
3499 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, UINT_MAX, "uart"),
3500 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3501 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3502 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3503 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb_bias"),
3506 static const struct pinctrl_pin_desc tegra124_pin_descs[] = {
3507 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3508 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_BB, "bb"),
3509 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3510 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_COMP, "comp"),
3511 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3512 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3513 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3514 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3515 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3516 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3517 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3518 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3519 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3520 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HV, "hv"),
3521 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3522 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3523 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_NAND, "nand"),
3524 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3525 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3526 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3527 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3528 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3529 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3530 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3531 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SYS_DDC, "sys_ddc"),
3532 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3533 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3534 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3535 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3536 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb_bias"),
3539 static const struct tegra_pmc_soc tegra124_pmc_soc = {
3540 .supports_core_domain = false,
3541 .num_powergates = ARRAY_SIZE(tegra124_powergates),
3542 .powergates = tegra124_powergates,
3543 .num_cpu_powergates = ARRAY_SIZE(tegra124_cpu_powergates),
3544 .cpu_powergates = tegra124_cpu_powergates,
3545 .has_tsense_reset = true,
3546 .has_gpu_clamps = true,
3547 .needs_mbist_war = false,
3548 .has_impl_33v_pwr = false,
3549 .maybe_tz_only = false,
3550 .num_io_pads = ARRAY_SIZE(tegra124_io_pads),
3551 .io_pads = tegra124_io_pads,
3552 .num_pin_descs = ARRAY_SIZE(tegra124_pin_descs),
3553 .pin_descs = tegra124_pin_descs,
3554 .regs = &tegra20_pmc_regs,
3555 .init = tegra20_pmc_init,
3556 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3557 .powergate_set = tegra114_powergate_set,
3558 .reset_sources = tegra30_reset_sources,
3559 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3560 .reset_levels = NULL,
3561 .num_reset_levels = 0,
3562 .pmc_clks_data = tegra_pmc_clks_data,
3563 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3564 .has_blink_output = true,
3565 .has_usb_sleepwalk = true,
3566 .has_single_mmio_aperture = true,
3569 static const char * const tegra210_powergates[] = {
3570 [TEGRA_POWERGATE_CPU] = "crail",
3571 [TEGRA_POWERGATE_3D] = "3d",
3572 [TEGRA_POWERGATE_VENC] = "venc",
3573 [TEGRA_POWERGATE_PCIE] = "pcie",
3574 [TEGRA_POWERGATE_MPE] = "mpe",
3575 [TEGRA_POWERGATE_SATA] = "sata",
3576 [TEGRA_POWERGATE_CPU1] = "cpu1",
3577 [TEGRA_POWERGATE_CPU2] = "cpu2",
3578 [TEGRA_POWERGATE_CPU3] = "cpu3",
3579 [TEGRA_POWERGATE_CPU0] = "cpu0",
3580 [TEGRA_POWERGATE_C0NC] = "c0nc",
3581 [TEGRA_POWERGATE_SOR] = "sor",
3582 [TEGRA_POWERGATE_DIS] = "dis",
3583 [TEGRA_POWERGATE_DISB] = "disb",
3584 [TEGRA_POWERGATE_XUSBA] = "xusba",
3585 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3586 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3587 [TEGRA_POWERGATE_VIC] = "vic",
3588 [TEGRA_POWERGATE_IRAM] = "iram",
3589 [TEGRA_POWERGATE_NVDEC] = "nvdec",
3590 [TEGRA_POWERGATE_NVJPG] = "nvjpg",
3591 [TEGRA_POWERGATE_AUD] = "aud",
3592 [TEGRA_POWERGATE_DFD] = "dfd",
3593 [TEGRA_POWERGATE_VE2] = "ve2",
3596 static const u8 tegra210_cpu_powergates[] = {
3597 TEGRA_POWERGATE_CPU0,
3598 TEGRA_POWERGATE_CPU1,
3599 TEGRA_POWERGATE_CPU2,
3600 TEGRA_POWERGATE_CPU3,
3603 static const struct tegra_io_pad_soc tegra210_io_pads[] = {
3604 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, 5, "audio"),
3605 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x1c0, 0x1c4, 18, "audio-hv"),
3606 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, 10, "cam"),
3607 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3608 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3609 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 10, 0x1c0, 0x1c4, UINT_MAX, "csic"),
3610 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 11, 0x1c0, 0x1c4, UINT_MAX, "csid"),
3611 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3612 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 13, 0x1c0, 0x1c4, UINT_MAX, "csif"),
3613 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x1b8, 0x1bc, 19, "dbg"),
3614 TEGRA_IO_PAD(TEGRA_IO_PAD_DEBUG_NONAO, 26, 0x1b8, 0x1bc, UINT_MAX, "debug-nonao"),
3615 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC, 18, 0x1c0, 0x1c4, 20, "dmic"),
3616 TEGRA_IO_PAD(TEGRA_IO_PAD_DP, 19, 0x1c0, 0x1c4, UINT_MAX, "dp"),
3617 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3618 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3619 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3620 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3621 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC, 3, 0x1c0, 0x1c4, UINT_MAX, "emmc"),
3622 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC2, 5, 0x1c0, 0x1c4, UINT_MAX, "emmc2"),
3623 TEGRA_IO_PAD(TEGRA_IO_PAD_GPIO, 27, 0x1b8, 0x1bc, 21, "gpio"),
3624 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3625 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3626 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3627 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3628 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3629 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3630 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3631 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, UINT_MAX, UINT_MAX, UINT_MAX, 11, "pex-cntrl"),
3632 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, 12, "sdmmc1"),
3633 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, 13, "sdmmc3"),
3634 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 14, 0x1c0, 0x1c4, 22, "spi"),
3635 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI_HV, 15, 0x1c0, 0x1c4, 23, "spi-hv"),
3636 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, 2, "uart"),
3637 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3638 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3639 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3640 TEGRA_IO_PAD(TEGRA_IO_PAD_USB3, 18, 0x1b8, 0x1bc, UINT_MAX, "usb3"),
3641 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb-bias"),
3644 static const struct pinctrl_pin_desc tegra210_pin_descs[] = {
3645 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3646 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3647 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3648 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3649 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3650 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3651 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3652 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3653 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3654 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3655 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DEBUG_NONAO, "debug-nonao"),
3656 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC, "dmic"),
3657 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DP, "dp"),
3658 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3659 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3660 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3661 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3662 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC, "emmc"),
3663 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC2, "emmc2"),
3664 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GPIO, "gpio"),
3665 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3666 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3667 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3668 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3669 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3670 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3671 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3672 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3673 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3674 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3675 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3676 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI_HV, "spi-hv"),
3677 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3678 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3679 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3680 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3681 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB3, "usb3"),
3682 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3685 static const char * const tegra210_reset_sources[] = {
3694 static const struct tegra_wake_event tegra210_wake_events[] = {
3695 TEGRA_WAKE_IRQ("rtc", 16, 2),
3696 TEGRA_WAKE_IRQ("pmu", 51, 86),
3699 static const struct tegra_pmc_soc tegra210_pmc_soc = {
3700 .supports_core_domain = false,
3701 .num_powergates = ARRAY_SIZE(tegra210_powergates),
3702 .powergates = tegra210_powergates,
3703 .num_cpu_powergates = ARRAY_SIZE(tegra210_cpu_powergates),
3704 .cpu_powergates = tegra210_cpu_powergates,
3705 .has_tsense_reset = true,
3706 .has_gpu_clamps = true,
3707 .needs_mbist_war = true,
3708 .has_impl_33v_pwr = false,
3709 .maybe_tz_only = true,
3710 .num_io_pads = ARRAY_SIZE(tegra210_io_pads),
3711 .io_pads = tegra210_io_pads,
3712 .num_pin_descs = ARRAY_SIZE(tegra210_pin_descs),
3713 .pin_descs = tegra210_pin_descs,
3714 .regs = &tegra20_pmc_regs,
3715 .init = tegra20_pmc_init,
3716 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3717 .powergate_set = tegra114_powergate_set,
3718 .irq_set_wake = tegra210_pmc_irq_set_wake,
3719 .irq_set_type = tegra210_pmc_irq_set_type,
3720 .reset_sources = tegra210_reset_sources,
3721 .num_reset_sources = ARRAY_SIZE(tegra210_reset_sources),
3722 .reset_levels = NULL,
3723 .num_reset_levels = 0,
3724 .num_wake_events = ARRAY_SIZE(tegra210_wake_events),
3725 .wake_events = tegra210_wake_events,
3726 .pmc_clks_data = tegra_pmc_clks_data,
3727 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3728 .has_blink_output = true,
3729 .has_usb_sleepwalk = true,
3730 .has_single_mmio_aperture = true,
3733 static const struct tegra_io_pad_soc tegra186_io_pads[] = {
3734 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3735 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3736 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x74, 0x78, UINT_MAX, "dsi"),
3737 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3738 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3739 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3740 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3741 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3742 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x74, 0x78, UINT_MAX, "usb0"),
3743 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x74, 0x78, UINT_MAX, "usb1"),
3744 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x74, 0x78, UINT_MAX, "usb2"),
3745 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x74, 0x78, UINT_MAX, "usb-bias"),
3746 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3747 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3748 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x74, 0x78, UINT_MAX, "hsic"),
3749 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
3750 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3751 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3752 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3753 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC2_HV, 2, 0x7c, 0x80, 5, "sdmmc2-hv"),
3754 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
3755 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
3756 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 8, 0x7c, 0x80, UINT_MAX, "dsib"),
3757 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 9, 0x7c, 0x80, UINT_MAX, "dsic"),
3758 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 10, 0x7c, 0x80, UINT_MAX, "dsid"),
3759 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
3760 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
3761 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
3762 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
3763 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
3764 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
3765 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC_HV, 20, 0x7c, 0x80, 2, "dmic-hv"),
3766 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
3767 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
3768 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
3769 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
3770 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
3771 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
3774 static const struct pinctrl_pin_desc tegra186_pin_descs[] = {
3775 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3776 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3777 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3778 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3779 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
3780 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
3781 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3782 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3783 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3784 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3785 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3786 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3787 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3788 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3789 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3790 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3791 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
3792 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
3793 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3794 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC2_HV, "sdmmc2-hv"),
3795 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3796 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3797 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3798 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3799 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3800 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3801 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3802 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3803 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3804 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3805 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
3806 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC_HV, "dmic-hv"),
3807 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
3808 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
3809 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
3810 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
3811 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3812 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
3815 static const struct tegra_pmc_regs tegra186_pmc_regs = {
3818 .rst_source_shift = 0x2,
3819 .rst_source_mask = 0x3c,
3820 .rst_level_shift = 0x0,
3821 .rst_level_mask = 0x3,
3824 static void tegra186_pmc_init(struct tegra_pmc *pmc)
3826 pmc->syscore.suspend = tegra186_pmc_wake_syscore_suspend;
3827 pmc->syscore.resume = tegra186_pmc_wake_syscore_resume;
3829 register_syscore_ops(&pmc->syscore);
3832 static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3833 struct device_node *np,
3836 struct resource regs;
3841 index = of_property_match_string(np, "reg-names", "wake");
3843 dev_err(pmc->dev, "failed to find PMC wake registers\n");
3847 of_address_to_resource(np, index, ®s);
3849 wake = ioremap(regs.start, resource_size(®s));
3851 dev_err(pmc->dev, "failed to map PMC wake registers\n");
3855 value = readl(wake + WAKE_AOWAKE_CTRL);
3858 value |= WAKE_AOWAKE_CTRL_INTR_POLARITY;
3860 value &= ~WAKE_AOWAKE_CTRL_INTR_POLARITY;
3862 writel(value, wake + WAKE_AOWAKE_CTRL);
3867 static const char * const tegra186_reset_sources[] = {
3885 static const char * const tegra186_reset_levels[] = {
3886 "L0", "L1", "L2", "WARM"
3889 static const struct tegra_wake_event tegra186_wake_events[] = {
3890 TEGRA_WAKE_IRQ("pmu", 24, 209),
3891 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA186_AON_GPIO(FF, 0)),
3892 TEGRA_WAKE_IRQ("rtc", 73, 10),
3895 static const struct tegra_pmc_soc tegra186_pmc_soc = {
3896 .supports_core_domain = false,
3897 .num_powergates = 0,
3899 .num_cpu_powergates = 0,
3900 .cpu_powergates = NULL,
3901 .has_tsense_reset = false,
3902 .has_gpu_clamps = false,
3903 .needs_mbist_war = false,
3904 .has_impl_33v_pwr = true,
3905 .maybe_tz_only = false,
3906 .num_io_pads = ARRAY_SIZE(tegra186_io_pads),
3907 .io_pads = tegra186_io_pads,
3908 .num_pin_descs = ARRAY_SIZE(tegra186_pin_descs),
3909 .pin_descs = tegra186_pin_descs,
3910 .regs = &tegra186_pmc_regs,
3911 .init = tegra186_pmc_init,
3912 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
3913 .set_wake_filters = tegra186_pmc_set_wake_filters,
3914 .irq_set_wake = tegra186_pmc_irq_set_wake,
3915 .irq_set_type = tegra186_pmc_irq_set_type,
3916 .reset_sources = tegra186_reset_sources,
3917 .num_reset_sources = ARRAY_SIZE(tegra186_reset_sources),
3918 .reset_levels = tegra186_reset_levels,
3919 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
3920 .num_wake_events = ARRAY_SIZE(tegra186_wake_events),
3921 .wake_events = tegra186_wake_events,
3922 .max_wake_events = 96,
3923 .max_wake_vectors = 3,
3924 .pmc_clks_data = NULL,
3926 .has_blink_output = false,
3927 .has_usb_sleepwalk = false,
3928 .has_single_mmio_aperture = false,
3931 static const struct tegra_io_pad_soc tegra194_io_pads[] = {
3932 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3933 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3934 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3935 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3936 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3937 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3938 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3939 TEGRA_IO_PAD(TEGRA_IO_PAD_EQOS, 8, 0x74, 0x78, UINT_MAX, "eqos"),
3940 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2_BIAS, 9, 0x74, 0x78, UINT_MAX, "pex-clk-2-bias"),
3941 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2, 10, 0x74, 0x78, UINT_MAX, "pex-clk-2"),
3942 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP3, 11, 0x74, 0x78, UINT_MAX, "dap3"),
3943 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP5, 12, 0x74, 0x78, UINT_MAX, "dap5"),
3944 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3945 TEGRA_IO_PAD(TEGRA_IO_PAD_PWR_CTL, 15, 0x74, 0x78, UINT_MAX, "pwr-ctl"),
3946 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO53, 16, 0x74, 0x78, UINT_MAX, "soc-gpio53"),
3947 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3948 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM2, 18, 0x74, 0x78, UINT_MAX, "gp-pwm2"),
3949 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM3, 19, 0x74, 0x78, UINT_MAX, "gp-pwm3"),
3950 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO12, 20, 0x74, 0x78, UINT_MAX, "soc-gpio12"),
3951 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO13, 21, 0x74, 0x78, UINT_MAX, "soc-gpio13"),
3952 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO10, 22, 0x74, 0x78, UINT_MAX, "soc-gpio10"),
3953 TEGRA_IO_PAD(TEGRA_IO_PAD_UART4, 23, 0x74, 0x78, UINT_MAX, "uart4"),
3954 TEGRA_IO_PAD(TEGRA_IO_PAD_UART5, 24, 0x74, 0x78, UINT_MAX, "uart5"),
3955 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
3956 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP3, 26, 0x74, 0x78, UINT_MAX, "hdmi-dp3"),
3957 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP2, 27, 0x74, 0x78, UINT_MAX, "hdmi-dp2"),
3958 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3959 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3960 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3961 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CTL2, 1, 0x7c, 0x80, UINT_MAX, "pex-ctl2"),
3962 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L0_RST, 2, 0x7c, 0x80, UINT_MAX, "pex-l0-rst"),
3963 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L1_RST, 3, 0x7c, 0x80, UINT_MAX, "pex-l1-rst"),
3964 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
3965 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L5_RST, 5, 0x7c, 0x80, UINT_MAX, "pex-l5-rst"),
3966 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
3967 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
3968 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
3969 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
3970 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
3971 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
3972 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
3973 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 18, 0x7c, 0x80, UINT_MAX, "csig"),
3974 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 19, 0x7c, 0x80, UINT_MAX, "csih"),
3975 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
3976 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
3977 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
3978 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
3979 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
3980 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
3983 static const struct pinctrl_pin_desc tegra194_pin_descs[] = {
3984 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3985 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3986 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3987 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
3988 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
3989 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3990 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3991 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EQOS, "eqos"),
3992 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2_BIAS, "pex-clk-2-bias"),
3993 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2, "pex-clk-2"),
3994 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP3, "dap3"),
3995 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP5, "dap5"),
3996 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3997 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PWR_CTL, "pwr-ctl"),
3998 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO53, "soc-gpio53"),
3999 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
4000 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM2, "gp-pwm2"),
4001 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM3, "gp-pwm3"),
4002 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO12, "soc-gpio12"),
4003 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO13, "soc-gpio13"),
4004 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO10, "soc-gpio10"),
4005 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART4, "uart4"),
4006 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART5, "uart5"),
4007 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
4008 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP3, "hdmi-dp3"),
4009 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP2, "hdmi-dp2"),
4010 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4011 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
4012 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
4013 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CTL2, "pex-ctl2"),
4014 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L0_RST, "pex-l0-rst"),
4015 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L1_RST, "pex-l1-rst"),
4016 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
4017 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L5_RST, "pex-l5-rst"),
4018 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
4019 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4020 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4021 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4022 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4023 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
4024 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4025 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4026 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4027 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4028 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4029 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4030 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
4031 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4032 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4035 static const struct tegra_pmc_regs tegra194_pmc_regs = {
4038 .rst_source_shift = 0x2,
4039 .rst_source_mask = 0x7c,
4040 .rst_level_shift = 0x0,
4041 .rst_level_mask = 0x3,
4044 static const char * const tegra194_reset_sources[] = {
4068 static const struct tegra_wake_event tegra194_wake_events[] = {
4069 TEGRA_WAKE_GPIO("eqos", 20, 0, TEGRA194_MAIN_GPIO(G, 4)),
4070 TEGRA_WAKE_IRQ("pmu", 24, 209),
4071 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA194_AON_GPIO(EE, 4)),
4072 TEGRA_WAKE_IRQ("rtc", 73, 10),
4073 TEGRA_WAKE_SIMPLE("usb3-port-0", 76),
4074 TEGRA_WAKE_SIMPLE("usb3-port-1", 77),
4075 TEGRA_WAKE_SIMPLE("usb3-port-2-3", 78),
4076 TEGRA_WAKE_SIMPLE("usb2-port-0", 79),
4077 TEGRA_WAKE_SIMPLE("usb2-port-1", 80),
4078 TEGRA_WAKE_SIMPLE("usb2-port-2", 81),
4079 TEGRA_WAKE_SIMPLE("usb2-port-3", 82),
4082 static const struct tegra_pmc_soc tegra194_pmc_soc = {
4083 .supports_core_domain = false,
4084 .num_powergates = 0,
4086 .num_cpu_powergates = 0,
4087 .cpu_powergates = NULL,
4088 .has_tsense_reset = false,
4089 .has_gpu_clamps = false,
4090 .needs_mbist_war = false,
4091 .has_impl_33v_pwr = true,
4092 .maybe_tz_only = false,
4093 .num_io_pads = ARRAY_SIZE(tegra194_io_pads),
4094 .io_pads = tegra194_io_pads,
4095 .num_pin_descs = ARRAY_SIZE(tegra194_pin_descs),
4096 .pin_descs = tegra194_pin_descs,
4097 .regs = &tegra194_pmc_regs,
4098 .init = tegra186_pmc_init,
4099 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4100 .set_wake_filters = tegra186_pmc_set_wake_filters,
4101 .irq_set_wake = tegra186_pmc_irq_set_wake,
4102 .irq_set_type = tegra186_pmc_irq_set_type,
4103 .reset_sources = tegra194_reset_sources,
4104 .num_reset_sources = ARRAY_SIZE(tegra194_reset_sources),
4105 .reset_levels = tegra186_reset_levels,
4106 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4107 .num_wake_events = ARRAY_SIZE(tegra194_wake_events),
4108 .wake_events = tegra194_wake_events,
4109 .max_wake_events = 96,
4110 .max_wake_vectors = 3,
4111 .pmc_clks_data = NULL,
4113 .has_blink_output = false,
4114 .has_usb_sleepwalk = false,
4115 .has_single_mmio_aperture = false,
4118 static const struct tegra_io_pad_soc tegra234_io_pads[] = {
4119 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0xe0c0, 0xe0c4, UINT_MAX, "csia"),
4120 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0xe0c0, 0xe0c4, UINT_MAX, "csib"),
4121 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 0, 0xe0d0, 0xe0d4, UINT_MAX, "hdmi-dp0"),
4122 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 2, 0xe0c0, 0xe0c4, UINT_MAX, "csic"),
4123 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 3, 0xe0c0, 0xe0c4, UINT_MAX, "csid"),
4124 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 4, 0xe0c0, 0xe0c4, UINT_MAX, "csie"),
4125 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 5, 0xe0c0, 0xe0c4, UINT_MAX, "csif"),
4126 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 0, 0xe064, 0xe068, UINT_MAX, "ufs"),
4127 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 1, 0xe05c, 0xe060, UINT_MAX, "edp"),
4128 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 0, 0xe054, 0xe058, 4, "sdmmc1-hv"),
4129 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, UINT_MAX, UINT_MAX, UINT_MAX, 6, "sdmmc3-hv"),
4130 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 1, "audio-hv"),
4131 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4132 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 6, 0xe0c0, 0xe0c4, UINT_MAX, "csig"),
4133 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 7, 0xe0c0, 0xe0c4, UINT_MAX, "csih"),
4136 static const struct pinctrl_pin_desc tegra234_pin_descs[] = {
4137 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
4138 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
4139 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4140 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4141 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4142 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4143 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4144 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4145 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4146 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4147 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4148 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4149 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4150 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4151 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4154 static const struct tegra_pmc_regs tegra234_pmc_regs = {
4157 .rst_source_shift = 0x2,
4158 .rst_source_mask = 0xfc,
4159 .rst_level_shift = 0x0,
4160 .rst_level_mask = 0x3,
4163 static const char * const tegra234_reset_sources[] = {
4164 "SYS_RESET_N", /* 0x0 */
4188 "CSITE_SW", /* 0x18 */
4196 "FSI_R52C0WDT", /* 0x20 */
4201 "FSI_VMON", /* 0x25 */
4204 static const struct tegra_wake_event tegra234_wake_events[] = {
4205 TEGRA_WAKE_GPIO("sd-wake", 8, 0, TEGRA234_MAIN_GPIO(G, 7)),
4206 TEGRA_WAKE_GPIO("eqos", 20, 0, TEGRA234_MAIN_GPIO(G, 4)),
4207 TEGRA_WAKE_IRQ("pmu", 24, 209),
4208 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
4209 TEGRA_WAKE_GPIO("mgbe", 56, 0, TEGRA234_MAIN_GPIO(Y, 3)),
4210 TEGRA_WAKE_IRQ("rtc", 73, 10),
4211 TEGRA_WAKE_IRQ("sw-wake", SW_WAKE_ID, 179),
4214 static const struct tegra_pmc_soc tegra234_pmc_soc = {
4215 .supports_core_domain = false,
4216 .num_powergates = 0,
4218 .num_cpu_powergates = 0,
4219 .cpu_powergates = NULL,
4220 .has_tsense_reset = false,
4221 .has_gpu_clamps = false,
4222 .needs_mbist_war = false,
4223 .has_impl_33v_pwr = true,
4224 .maybe_tz_only = false,
4225 .num_io_pads = ARRAY_SIZE(tegra234_io_pads),
4226 .io_pads = tegra234_io_pads,
4227 .num_pin_descs = ARRAY_SIZE(tegra234_pin_descs),
4228 .pin_descs = tegra234_pin_descs,
4229 .regs = &tegra234_pmc_regs,
4230 .init = tegra186_pmc_init,
4231 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4232 .set_wake_filters = tegra186_pmc_set_wake_filters,
4233 .irq_set_wake = tegra186_pmc_irq_set_wake,
4234 .irq_set_type = tegra186_pmc_irq_set_type,
4235 .reset_sources = tegra234_reset_sources,
4236 .num_reset_sources = ARRAY_SIZE(tegra234_reset_sources),
4237 .reset_levels = tegra186_reset_levels,
4238 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4239 .num_wake_events = ARRAY_SIZE(tegra234_wake_events),
4240 .wake_events = tegra234_wake_events,
4241 .max_wake_events = 96,
4242 .max_wake_vectors = 3,
4243 .pmc_clks_data = NULL,
4245 .has_blink_output = false,
4246 .has_single_mmio_aperture = false,
4249 static const struct of_device_id tegra_pmc_match[] = {
4250 { .compatible = "nvidia,tegra234-pmc", .data = &tegra234_pmc_soc },
4251 { .compatible = "nvidia,tegra194-pmc", .data = &tegra194_pmc_soc },
4252 { .compatible = "nvidia,tegra186-pmc", .data = &tegra186_pmc_soc },
4253 { .compatible = "nvidia,tegra210-pmc", .data = &tegra210_pmc_soc },
4254 { .compatible = "nvidia,tegra132-pmc", .data = &tegra124_pmc_soc },
4255 { .compatible = "nvidia,tegra124-pmc", .data = &tegra124_pmc_soc },
4256 { .compatible = "nvidia,tegra114-pmc", .data = &tegra114_pmc_soc },
4257 { .compatible = "nvidia,tegra30-pmc", .data = &tegra30_pmc_soc },
4258 { .compatible = "nvidia,tegra20-pmc", .data = &tegra20_pmc_soc },
4262 static void tegra_pmc_sync_state(struct device *dev)
4267 * Newer device-trees have power domains, but we need to prepare all
4268 * device drivers with runtime PM and OPP support first, otherwise
4269 * state syncing is unsafe.
4271 if (!pmc->soc->supports_core_domain)
4275 * Older device-trees don't have core PD, and thus, there are
4276 * no dependencies that will block the state syncing. We shouldn't
4277 * mark the domain as synced in this case.
4279 if (!pmc->core_domain_registered)
4282 pmc->core_domain_state_synced = true;
4284 /* this is a no-op if core regulator isn't used */
4285 mutex_lock(&pmc->powergates_lock);
4286 err = dev_pm_opp_sync_regulators(dev);
4287 mutex_unlock(&pmc->powergates_lock);
4290 dev_err(dev, "failed to sync regulators: %d\n", err);
4293 static struct platform_driver tegra_pmc_driver = {
4295 .name = "tegra-pmc",
4296 .suppress_bind_attrs = true,
4297 .of_match_table = tegra_pmc_match,
4298 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
4299 .pm = &tegra_pmc_pm_ops,
4301 .sync_state = tegra_pmc_sync_state,
4303 .probe = tegra_pmc_probe,
4305 builtin_platform_driver(tegra_pmc_driver);
4307 static bool __init tegra_pmc_detect_tz_only(struct tegra_pmc *pmc)
4311 saved = readl(pmc->base + pmc->soc->regs->scratch0);
4312 value = saved ^ 0xffffffff;
4314 if (value == 0xffffffff)
4317 /* write pattern and read it back */
4318 writel(value, pmc->base + pmc->soc->regs->scratch0);
4319 value = readl(pmc->base + pmc->soc->regs->scratch0);
4321 /* if we read all-zeroes, access is restricted to TZ only */
4323 pr_info("access to PMC is restricted to TZ\n");
4327 /* restore original value */
4328 writel(saved, pmc->base + pmc->soc->regs->scratch0);
4334 * Early initialization to allow access to registers in the very early boot
4337 static int __init tegra_pmc_early_init(void)
4339 const struct of_device_id *match;
4340 struct device_node *np;
4341 struct resource regs;
4345 mutex_init(&pmc->powergates_lock);
4347 np = of_find_matching_node_and_match(NULL, tegra_pmc_match, &match);
4350 * Fall back to legacy initialization for 32-bit ARM only. All
4351 * 64-bit ARM device tree files for Tegra are required to have
4354 * This is for backwards-compatibility with old device trees
4355 * that didn't contain a PMC node. Note that in this case the
4356 * SoC data can't be matched and therefore powergating is
4359 if (IS_ENABLED(CONFIG_ARM) && soc_is_tegra()) {
4360 pr_warn("DT node not found, powergating disabled\n");
4362 regs.start = 0x7000e400;
4363 regs.end = 0x7000e7ff;
4364 regs.flags = IORESOURCE_MEM;
4366 pr_warn("Using memory region %pR\n", ®s);
4369 * At this point we're not running on Tegra, so play
4370 * nice with multi-platform kernels.
4376 * Extract information from the device tree if we've found a
4379 if (of_address_to_resource(np, 0, ®s) < 0) {
4380 pr_err("failed to get PMC registers\n");
4386 pmc->base = ioremap(regs.start, resource_size(®s));
4388 pr_err("failed to map PMC registers\n");
4393 if (of_device_is_available(np)) {
4394 pmc->soc = match->data;
4396 if (pmc->soc->maybe_tz_only)
4397 pmc->tz_only = tegra_pmc_detect_tz_only(pmc);
4399 /* Create a bitmap of the available and valid partitions */
4400 for (i = 0; i < pmc->soc->num_powergates; i++)
4401 if (pmc->soc->powergates[i])
4402 set_bit(i, pmc->powergates_available);
4405 * Invert the interrupt polarity if a PMC device tree node
4406 * exists and contains the nvidia,invert-interrupt property.
4408 invert = of_property_read_bool(np, "nvidia,invert-interrupt");
4410 pmc->soc->setup_irq_polarity(pmc, np, invert);
4417 early_initcall(tegra_pmc_early_init);