1 // SPDX-License-Identifier: GPL-2.0-only
3 * drivers/soc/tegra/pmc.c
5 * Copyright (c) 2010 Google, Inc
6 * Copyright (c) 2018-2022, 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_MASK_W(x) (0x180 + ((x) << 2))
181 #define WAKE_AOWAKE_MASK_R(x) (0x300 + ((x) << 2))
182 #define WAKE_AOWAKE_STATUS_W(x) (0x30c + ((x) << 2))
183 #define WAKE_AOWAKE_STATUS_R(x) (0x48c + ((x) << 2))
184 #define WAKE_AOWAKE_TIER0_ROUTING(x) (0x4b4 + ((x) << 2))
185 #define WAKE_AOWAKE_TIER1_ROUTING(x) (0x4c0 + ((x) << 2))
186 #define WAKE_AOWAKE_TIER2_ROUTING(x) (0x4cc + ((x) << 2))
187 #define WAKE_AOWAKE_SW_STATUS_W_0 0x49c
188 #define WAKE_AOWAKE_SW_STATUS(x) (0x4a0 + ((x) << 2))
189 #define WAKE_LATCH_SW 0x498
191 #define WAKE_AOWAKE_CTRL 0x4f4
192 #define WAKE_AOWAKE_CTRL_INTR_POLARITY BIT(0)
195 #define TEGRA_SMC_PMC 0xc2fffe00
196 #define TEGRA_SMC_PMC_READ 0xaa
197 #define TEGRA_SMC_PMC_WRITE 0xbb
206 #define to_pmc_clk(_hw) container_of(_hw, struct pmc_clk, hw)
208 struct pmc_clk_gate {
214 #define to_pmc_clk_gate(_hw) container_of(_hw, struct pmc_clk_gate, hw)
216 struct pmc_clk_init_data {
218 const char *const *parents;
225 static const char * const clk_out1_parents[] = { "osc", "osc_div2",
226 "osc_div4", "extern1",
229 static const char * const clk_out2_parents[] = { "osc", "osc_div2",
230 "osc_div4", "extern2",
233 static const char * const clk_out3_parents[] = { "osc", "osc_div2",
234 "osc_div4", "extern3",
237 static const struct pmc_clk_init_data tegra_pmc_clks_data[] = {
239 .name = "pmc_clk_out_1",
240 .parents = clk_out1_parents,
241 .num_parents = ARRAY_SIZE(clk_out1_parents),
242 .clk_id = TEGRA_PMC_CLK_OUT_1,
247 .name = "pmc_clk_out_2",
248 .parents = clk_out2_parents,
249 .num_parents = ARRAY_SIZE(clk_out2_parents),
250 .clk_id = TEGRA_PMC_CLK_OUT_2,
252 .force_en_shift = 10,
255 .name = "pmc_clk_out_3",
256 .parents = clk_out3_parents,
257 .num_parents = ARRAY_SIZE(clk_out3_parents),
258 .clk_id = TEGRA_PMC_CLK_OUT_3,
260 .force_en_shift = 18,
264 struct tegra_powergate {
265 struct generic_pm_domain genpd;
266 struct tegra_pmc *pmc;
269 unsigned int num_clks;
270 unsigned long *clk_rates;
271 struct reset_control *reset;
274 struct tegra_io_pad_soc {
275 enum tegra_io_pad id;
277 unsigned int request;
279 unsigned int voltage;
283 struct tegra_pmc_regs {
284 unsigned int scratch0;
285 unsigned int rst_status;
286 unsigned int rst_source_shift;
287 unsigned int rst_source_mask;
288 unsigned int rst_level_shift;
289 unsigned int rst_level_mask;
292 struct tegra_wake_event {
297 unsigned int instance;
302 #define TEGRA_WAKE_SIMPLE(_name, _id) \
308 .instance = UINT_MAX, \
313 #define TEGRA_WAKE_IRQ(_name, _id, _irq) \
319 .instance = UINT_MAX, \
324 #define TEGRA_WAKE_GPIO(_name, _id, _instance, _pin) \
330 .instance = _instance, \
335 struct tegra_pmc_soc {
336 unsigned int num_powergates;
337 const char *const *powergates;
338 unsigned int num_cpu_powergates;
339 const u8 *cpu_powergates;
341 bool has_tsense_reset;
343 bool needs_mbist_war;
344 bool has_impl_33v_pwr;
347 const struct tegra_io_pad_soc *io_pads;
348 unsigned int num_io_pads;
350 const struct pinctrl_pin_desc *pin_descs;
351 unsigned int num_pin_descs;
353 const struct tegra_pmc_regs *regs;
354 void (*init)(struct tegra_pmc *pmc);
355 void (*setup_irq_polarity)(struct tegra_pmc *pmc,
356 struct device_node *np,
358 int (*irq_set_wake)(struct irq_data *data, unsigned int on);
359 int (*irq_set_type)(struct irq_data *data, unsigned int type);
360 int (*powergate_set)(struct tegra_pmc *pmc, unsigned int id,
363 const char * const *reset_sources;
364 unsigned int num_reset_sources;
365 const char * const *reset_levels;
366 unsigned int num_reset_levels;
369 * These describe events that can wake the system from sleep (i.e.
370 * LP0 or SC7). Wakeup from other sleep states (such as LP1 or LP2)
371 * are dealt with in the LIC.
373 const struct tegra_wake_event *wake_events;
374 unsigned int num_wake_events;
375 unsigned int max_wake_events;
376 unsigned int max_wake_vectors;
378 const struct pmc_clk_init_data *pmc_clks_data;
379 unsigned int num_pmc_clks;
380 bool has_blink_output;
381 bool has_usb_sleepwalk;
382 bool supports_core_domain;
386 * struct tegra_pmc - NVIDIA Tegra PMC
387 * @dev: pointer to PMC device structure
388 * @base: pointer to I/O remapped register region
389 * @wake: pointer to I/O remapped region for WAKE registers
390 * @aotag: pointer to I/O remapped region for AOTAG registers
391 * @scratch: pointer to I/O remapped region for scratch registers
392 * @clk: pointer to pclk clock
393 * @soc: pointer to SoC data structure
394 * @tz_only: flag specifying if the PMC can only be accessed via TrustZone
395 * @debugfs: pointer to debugfs entry
396 * @rate: currently configured rate of pclk
397 * @suspend_mode: lowest suspend mode available
398 * @cpu_good_time: CPU power good time (in microseconds)
399 * @cpu_off_time: CPU power off time (in microsecends)
400 * @core_osc_time: core power good OSC time (in microseconds)
401 * @core_pmu_time: core power good PMU time (in microseconds)
402 * @core_off_time: core power off time (in microseconds)
403 * @corereq_high: core power request is active-high
404 * @sysclkreq_high: system clock request is active-high
405 * @combined_req: combined power request for CPU & core
406 * @cpu_pwr_good_en: CPU power good signal is enabled
407 * @lp0_vec_phys: physical base address of the LP0 warm boot code
408 * @lp0_vec_size: size of the LP0 warm boot code
409 * @powergates_available: Bitmap of available power gates
410 * @powergates_lock: mutex for power gate register access
411 * @pctl_dev: pin controller exposed by the PMC
412 * @domain: IRQ domain provided by the PMC
413 * @irq: chip implementation for the IRQ domain
414 * @clk_nb: pclk clock changes handler
415 * @core_domain_state_synced: flag marking the core domain's state as synced
416 * @core_domain_registered: flag marking the core domain as registered
417 * @wake_type_level_map: Bitmap indicating level type for non-dual edge wakes
418 * @wake_type_dual_edge_map: Bitmap indicating if a wake is dual-edge or not
419 * @wake_sw_status_map: Bitmap to hold raw status of wakes without mask
420 * @wake_cntrl_level_map: Bitmap to hold wake levels to be programmed in
421 * cntrl register associated with each wake during system suspend.
428 void __iomem *scratch;
430 struct dentry *debugfs;
432 const struct tegra_pmc_soc *soc;
437 enum tegra_suspend_mode suspend_mode;
446 bool cpu_pwr_good_en;
449 DECLARE_BITMAP(powergates_available, TEGRA_POWERGATE_MAX);
451 struct mutex powergates_lock;
453 struct pinctrl_dev *pctl_dev;
455 struct irq_domain *domain;
458 struct notifier_block clk_nb;
460 bool core_domain_state_synced;
461 bool core_domain_registered;
463 unsigned long *wake_type_level_map;
464 unsigned long *wake_type_dual_edge_map;
465 unsigned long *wake_sw_status_map;
466 unsigned long *wake_cntrl_level_map;
467 struct syscore_ops syscore;
470 static struct tegra_pmc *pmc = &(struct tegra_pmc) {
472 .suspend_mode = TEGRA_SUSPEND_NOT_READY,
475 static inline struct tegra_powergate *
476 to_powergate(struct generic_pm_domain *domain)
478 return container_of(domain, struct tegra_powergate, genpd);
481 static u32 tegra_pmc_readl(struct tegra_pmc *pmc, unsigned long offset)
483 struct arm_smccc_res res;
486 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_READ, offset, 0, 0,
490 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
493 pr_warn("%s(): SMC failed: %lu\n", __func__,
500 return readl(pmc->base + offset);
503 static void tegra_pmc_writel(struct tegra_pmc *pmc, u32 value,
504 unsigned long offset)
506 struct arm_smccc_res res;
509 arm_smccc_smc(TEGRA_SMC_PMC, TEGRA_SMC_PMC_WRITE, offset,
510 value, 0, 0, 0, 0, &res);
513 dev_warn(pmc->dev, "%s(): SMC failed: %lu\n",
516 pr_warn("%s(): SMC failed: %lu\n", __func__,
520 writel(value, pmc->base + offset);
524 static u32 tegra_pmc_scratch_readl(struct tegra_pmc *pmc, unsigned long offset)
527 return tegra_pmc_readl(pmc, offset);
529 return readl(pmc->scratch + offset);
532 static void tegra_pmc_scratch_writel(struct tegra_pmc *pmc, u32 value,
533 unsigned long offset)
536 tegra_pmc_writel(pmc, value, offset);
538 writel(value, pmc->scratch + offset);
542 * TODO Figure out a way to call this with the struct tegra_pmc * passed in.
543 * This currently doesn't work because readx_poll_timeout() can only operate
544 * on functions that take a single argument.
546 static inline bool tegra_powergate_state(int id)
548 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
549 return (tegra_pmc_readl(pmc, GPU_RG_CNTRL) & 0x1) == 0;
551 return (tegra_pmc_readl(pmc, PWRGATE_STATUS) & BIT(id)) != 0;
554 static inline bool tegra_powergate_is_valid(struct tegra_pmc *pmc, int id)
556 return (pmc->soc && pmc->soc->powergates[id]);
559 static inline bool tegra_powergate_is_available(struct tegra_pmc *pmc, int id)
561 return test_bit(id, pmc->powergates_available);
564 static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name)
568 if (!pmc || !pmc->soc || !name)
571 for (i = 0; i < pmc->soc->num_powergates; i++) {
572 if (!tegra_powergate_is_valid(pmc, i))
575 if (!strcmp(name, pmc->soc->powergates[i]))
582 static int tegra20_powergate_set(struct tegra_pmc *pmc, unsigned int id,
585 unsigned int retries = 100;
590 * As per TRM documentation, the toggle command will be dropped by PMC
591 * if there is contention with a HW-initiated toggling (i.e. CPU core
592 * power-gated), the command should be retried in that case.
595 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
597 /* wait for PMC to execute the command */
598 ret = readx_poll_timeout(tegra_powergate_state, id, status,
599 status == new_state, 1, 10);
600 } while (ret == -ETIMEDOUT && retries--);
605 static inline bool tegra_powergate_toggle_ready(struct tegra_pmc *pmc)
607 return !(tegra_pmc_readl(pmc, PWRGATE_TOGGLE) & PWRGATE_TOGGLE_START);
610 static int tegra114_powergate_set(struct tegra_pmc *pmc, unsigned int id,
616 /* wait while PMC power gating is contended */
617 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
618 status == true, 1, 100);
622 tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE);
624 /* wait for PMC to accept the command */
625 err = readx_poll_timeout(tegra_powergate_toggle_ready, pmc, status,
626 status == true, 1, 100);
630 /* wait for PMC to execute the command */
631 err = readx_poll_timeout(tegra_powergate_state, id, status,
632 status == new_state, 10, 100000);
640 * tegra_powergate_set() - set the state of a partition
641 * @pmc: power management controller
643 * @new_state: new state of the partition
645 static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id,
650 if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps)
653 mutex_lock(&pmc->powergates_lock);
655 if (tegra_powergate_state(id) == new_state) {
656 mutex_unlock(&pmc->powergates_lock);
660 err = pmc->soc->powergate_set(pmc, id, new_state);
662 mutex_unlock(&pmc->powergates_lock);
667 static int __tegra_powergate_remove_clamping(struct tegra_pmc *pmc,
672 mutex_lock(&pmc->powergates_lock);
675 * On Tegra124 and later, the clamps for the GPU are controlled by a
676 * separate register (with different semantics).
678 if (id == TEGRA_POWERGATE_3D) {
679 if (pmc->soc->has_gpu_clamps) {
680 tegra_pmc_writel(pmc, 0, GPU_RG_CNTRL);
686 * Tegra 2 has a bug where PCIE and VDE clamping masks are
687 * swapped relatively to the partition ids
689 if (id == TEGRA_POWERGATE_VDEC)
690 mask = (1 << TEGRA_POWERGATE_PCIE);
691 else if (id == TEGRA_POWERGATE_PCIE)
692 mask = (1 << TEGRA_POWERGATE_VDEC);
696 tegra_pmc_writel(pmc, mask, REMOVE_CLAMPING);
699 mutex_unlock(&pmc->powergates_lock);
704 static int tegra_powergate_prepare_clocks(struct tegra_powergate *pg)
706 unsigned long safe_rate = 100 * 1000 * 1000;
710 for (i = 0; i < pg->num_clks; i++) {
711 pg->clk_rates[i] = clk_get_rate(pg->clks[i]);
713 if (!pg->clk_rates[i]) {
718 if (pg->clk_rates[i] <= safe_rate)
722 * We don't know whether voltage state is okay for the
723 * current clock rate, hence it's better to temporally
724 * switch clock to a safe rate which is suitable for
725 * all voltages, before enabling the clock.
727 err = clk_set_rate(pg->clks[i], safe_rate);
736 clk_set_rate(pg->clks[i], pg->clk_rates[i]);
741 static int tegra_powergate_unprepare_clocks(struct tegra_powergate *pg)
746 for (i = 0; i < pg->num_clks; i++) {
747 err = clk_set_rate(pg->clks[i], pg->clk_rates[i]);
755 static void tegra_powergate_disable_clocks(struct tegra_powergate *pg)
759 for (i = 0; i < pg->num_clks; i++)
760 clk_disable_unprepare(pg->clks[i]);
763 static int tegra_powergate_enable_clocks(struct tegra_powergate *pg)
768 for (i = 0; i < pg->num_clks; i++) {
769 err = clk_prepare_enable(pg->clks[i]);
778 clk_disable_unprepare(pg->clks[i]);
783 static int tegra_powergate_power_up(struct tegra_powergate *pg,
788 err = reset_control_assert(pg->reset);
792 usleep_range(10, 20);
794 err = tegra_powergate_set(pg->pmc, pg->id, true);
798 usleep_range(10, 20);
800 err = tegra_powergate_prepare_clocks(pg);
804 err = tegra_powergate_enable_clocks(pg);
808 usleep_range(10, 20);
810 err = __tegra_powergate_remove_clamping(pg->pmc, pg->id);
814 usleep_range(10, 20);
816 err = reset_control_deassert(pg->reset);
820 usleep_range(10, 20);
822 if (pg->pmc->soc->needs_mbist_war)
823 err = tegra210_clk_handle_mbist_war(pg->id);
828 tegra_powergate_disable_clocks(pg);
830 err = tegra_powergate_unprepare_clocks(pg);
837 tegra_powergate_disable_clocks(pg);
838 usleep_range(10, 20);
841 tegra_powergate_unprepare_clocks(pg);
844 tegra_powergate_set(pg->pmc, pg->id, false);
849 static int tegra_powergate_power_down(struct tegra_powergate *pg)
853 err = tegra_powergate_prepare_clocks(pg);
857 err = tegra_powergate_enable_clocks(pg);
861 usleep_range(10, 20);
863 err = reset_control_assert(pg->reset);
867 usleep_range(10, 20);
869 tegra_powergate_disable_clocks(pg);
871 usleep_range(10, 20);
873 err = tegra_powergate_set(pg->pmc, pg->id, false);
877 err = tegra_powergate_unprepare_clocks(pg);
884 tegra_powergate_enable_clocks(pg);
885 usleep_range(10, 20);
886 reset_control_deassert(pg->reset);
887 usleep_range(10, 20);
890 tegra_powergate_disable_clocks(pg);
893 tegra_powergate_unprepare_clocks(pg);
898 static int tegra_genpd_power_on(struct generic_pm_domain *domain)
900 struct tegra_powergate *pg = to_powergate(domain);
901 struct device *dev = pg->pmc->dev;
904 err = tegra_powergate_power_up(pg, true);
906 dev_err(dev, "failed to turn on PM domain %s: %d\n",
907 pg->genpd.name, err);
911 reset_control_release(pg->reset);
917 static int tegra_genpd_power_off(struct generic_pm_domain *domain)
919 struct tegra_powergate *pg = to_powergate(domain);
920 struct device *dev = pg->pmc->dev;
923 err = reset_control_acquire(pg->reset);
925 dev_err(dev, "failed to acquire resets for PM domain %s: %d\n",
926 pg->genpd.name, err);
930 err = tegra_powergate_power_down(pg);
932 dev_err(dev, "failed to turn off PM domain %s: %d\n",
933 pg->genpd.name, err);
934 reset_control_release(pg->reset);
941 * tegra_powergate_power_on() - power on partition
944 int tegra_powergate_power_on(unsigned int id)
946 if (!tegra_powergate_is_available(pmc, id))
949 return tegra_powergate_set(pmc, id, true);
951 EXPORT_SYMBOL(tegra_powergate_power_on);
954 * tegra_powergate_power_off() - power off partition
957 int tegra_powergate_power_off(unsigned int id)
959 if (!tegra_powergate_is_available(pmc, id))
962 return tegra_powergate_set(pmc, id, false);
964 EXPORT_SYMBOL(tegra_powergate_power_off);
967 * tegra_powergate_is_powered() - check if partition is powered
968 * @pmc: power management controller
971 static int tegra_powergate_is_powered(struct tegra_pmc *pmc, unsigned int id)
973 if (!tegra_powergate_is_valid(pmc, id))
976 return tegra_powergate_state(id);
980 * tegra_powergate_remove_clamping() - remove power clamps for partition
983 int tegra_powergate_remove_clamping(unsigned int id)
985 if (!tegra_powergate_is_available(pmc, id))
988 return __tegra_powergate_remove_clamping(pmc, id);
990 EXPORT_SYMBOL(tegra_powergate_remove_clamping);
993 * tegra_powergate_sequence_power_up() - power up partition
995 * @clk: clock for partition
996 * @rst: reset for partition
998 * Must be called with clk disabled, and returns with clk enabled.
1000 int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
1001 struct reset_control *rst)
1003 struct tegra_powergate *pg;
1006 if (!tegra_powergate_is_available(pmc, id))
1009 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1013 pg->clk_rates = kzalloc(sizeof(*pg->clk_rates), GFP_KERNEL);
1014 if (!pg->clk_rates) {
1025 err = tegra_powergate_power_up(pg, false);
1027 dev_err(pmc->dev, "failed to turn on partition %d: %d\n", id,
1030 kfree(pg->clk_rates);
1035 EXPORT_SYMBOL(tegra_powergate_sequence_power_up);
1038 * tegra_get_cpu_powergate_id() - convert from CPU ID to partition ID
1039 * @pmc: power management controller
1040 * @cpuid: CPU partition ID
1042 * Returns the partition ID corresponding to the CPU partition ID or a
1043 * negative error code on failure.
1045 static int tegra_get_cpu_powergate_id(struct tegra_pmc *pmc,
1048 if (pmc->soc && cpuid < pmc->soc->num_cpu_powergates)
1049 return pmc->soc->cpu_powergates[cpuid];
1055 * tegra_pmc_cpu_is_powered() - check if CPU partition is powered
1056 * @cpuid: CPU partition ID
1058 bool tegra_pmc_cpu_is_powered(unsigned int cpuid)
1062 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1066 return tegra_powergate_is_powered(pmc, id);
1070 * tegra_pmc_cpu_power_on() - power on CPU partition
1071 * @cpuid: CPU partition ID
1073 int tegra_pmc_cpu_power_on(unsigned int cpuid)
1077 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1081 return tegra_powergate_set(pmc, id, true);
1085 * tegra_pmc_cpu_remove_clamping() - remove power clamps for CPU partition
1086 * @cpuid: CPU partition ID
1088 int tegra_pmc_cpu_remove_clamping(unsigned int cpuid)
1092 id = tegra_get_cpu_powergate_id(pmc, cpuid);
1096 return tegra_powergate_remove_clamping(id);
1099 static void tegra_pmc_program_reboot_reason(const char *cmd)
1103 value = tegra_pmc_scratch_readl(pmc, pmc->soc->regs->scratch0);
1104 value &= ~PMC_SCRATCH0_MODE_MASK;
1107 if (strcmp(cmd, "recovery") == 0)
1108 value |= PMC_SCRATCH0_MODE_RECOVERY;
1110 if (strcmp(cmd, "bootloader") == 0)
1111 value |= PMC_SCRATCH0_MODE_BOOTLOADER;
1113 if (strcmp(cmd, "forced-recovery") == 0)
1114 value |= PMC_SCRATCH0_MODE_RCM;
1117 tegra_pmc_scratch_writel(pmc, value, pmc->soc->regs->scratch0);
1120 static int tegra_pmc_reboot_notify(struct notifier_block *this,
1121 unsigned long action, void *data)
1123 if (action == SYS_RESTART)
1124 tegra_pmc_program_reboot_reason(data);
1129 static struct notifier_block tegra_pmc_reboot_notifier = {
1130 .notifier_call = tegra_pmc_reboot_notify,
1133 static void tegra_pmc_restart(void)
1137 /* reset everything but PMC_SCRATCH0 and PMC_RST_STATUS */
1138 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1139 value |= PMC_CNTRL_MAIN_RST;
1140 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1143 static int tegra_pmc_restart_handler(struct sys_off_data *data)
1145 tegra_pmc_restart();
1150 static int tegra_pmc_power_off_handler(struct sys_off_data *data)
1153 * Reboot Nexus 7 into special bootloader mode if USB cable is
1154 * connected in order to display battery status and power off.
1156 if (of_machine_is_compatible("asus,grouper") &&
1157 power_supply_is_system_supplied()) {
1158 const u32 go_to_charger_mode = 0xa5a55a5a;
1160 tegra_pmc_writel(pmc, go_to_charger_mode, PMC_SCRATCH37);
1161 tegra_pmc_restart();
1167 static int powergate_show(struct seq_file *s, void *data)
1172 seq_printf(s, " powergate powered\n");
1173 seq_printf(s, "------------------\n");
1175 for (i = 0; i < pmc->soc->num_powergates; i++) {
1176 status = tegra_powergate_is_powered(pmc, i);
1180 seq_printf(s, " %9s %7s\n", pmc->soc->powergates[i],
1181 status ? "yes" : "no");
1187 DEFINE_SHOW_ATTRIBUTE(powergate);
1189 static int tegra_powergate_debugfs_init(void)
1191 pmc->debugfs = debugfs_create_file("powergate", S_IRUGO, NULL, NULL,
1199 static int tegra_powergate_of_get_clks(struct tegra_powergate *pg,
1200 struct device_node *np)
1203 unsigned int i, count;
1206 count = of_clk_get_parent_count(np);
1210 pg->clks = kcalloc(count, sizeof(clk), GFP_KERNEL);
1214 pg->clk_rates = kcalloc(count, sizeof(*pg->clk_rates), GFP_KERNEL);
1215 if (!pg->clk_rates) {
1220 for (i = 0; i < count; i++) {
1221 pg->clks[i] = of_clk_get(np, i);
1222 if (IS_ERR(pg->clks[i])) {
1223 err = PTR_ERR(pg->clks[i]);
1228 pg->num_clks = count;
1234 clk_put(pg->clks[i]);
1236 kfree(pg->clk_rates);
1242 static int tegra_powergate_of_get_resets(struct tegra_powergate *pg,
1243 struct device_node *np, bool off)
1245 struct device *dev = pg->pmc->dev;
1248 pg->reset = of_reset_control_array_get_exclusive_released(np);
1249 if (IS_ERR(pg->reset)) {
1250 err = PTR_ERR(pg->reset);
1251 dev_err(dev, "failed to get device resets: %d\n", err);
1255 err = reset_control_acquire(pg->reset);
1257 pr_err("failed to acquire resets: %d\n", err);
1262 err = reset_control_assert(pg->reset);
1264 err = reset_control_deassert(pg->reset);
1268 reset_control_release(pg->reset);
1273 reset_control_release(pg->reset);
1274 reset_control_put(pg->reset);
1280 static int tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np)
1282 struct device *dev = pmc->dev;
1283 struct tegra_powergate *pg;
1287 pg = kzalloc(sizeof(*pg), GFP_KERNEL);
1291 id = tegra_powergate_lookup(pmc, np->name);
1293 dev_err(dev, "powergate lookup failed for %pOFn: %d\n", np, id);
1299 * Clear the bit for this powergate so it cannot be managed
1300 * directly via the legacy APIs for controlling powergates.
1302 clear_bit(id, pmc->powergates_available);
1305 pg->genpd.name = np->name;
1306 pg->genpd.power_off = tegra_genpd_power_off;
1307 pg->genpd.power_on = tegra_genpd_power_on;
1310 off = !tegra_powergate_is_powered(pmc, pg->id);
1312 err = tegra_powergate_of_get_clks(pg, np);
1314 dev_err(dev, "failed to get clocks for %pOFn: %d\n", np, err);
1318 err = tegra_powergate_of_get_resets(pg, np, off);
1320 dev_err(dev, "failed to get resets for %pOFn: %d\n", np, err);
1324 if (!IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS)) {
1326 WARN_ON(tegra_powergate_power_up(pg, true));
1331 err = pm_genpd_init(&pg->genpd, NULL, off);
1333 dev_err(dev, "failed to initialise PM domain %pOFn: %d\n", np,
1338 err = of_genpd_add_provider_simple(np, &pg->genpd);
1340 dev_err(dev, "failed to add PM domain provider for %pOFn: %d\n",
1345 dev_dbg(dev, "added PM domain %s\n", pg->genpd.name);
1350 pm_genpd_remove(&pg->genpd);
1353 reset_control_put(pg->reset);
1356 while (pg->num_clks--)
1357 clk_put(pg->clks[pg->num_clks]);
1362 set_bit(id, pmc->powergates_available);
1370 bool tegra_pmc_core_domain_state_synced(void)
1372 return pmc->core_domain_state_synced;
1376 tegra_pmc_core_pd_set_performance_state(struct generic_pm_domain *genpd,
1379 struct dev_pm_opp *opp;
1382 opp = dev_pm_opp_find_level_ceil(&genpd->dev, &level);
1384 dev_err(&genpd->dev, "failed to find OPP for level %u: %pe\n",
1386 return PTR_ERR(opp);
1389 mutex_lock(&pmc->powergates_lock);
1390 err = dev_pm_opp_set_opp(pmc->dev, opp);
1391 mutex_unlock(&pmc->powergates_lock);
1393 dev_pm_opp_put(opp);
1396 dev_err(&genpd->dev, "failed to set voltage to %duV: %d\n",
1405 tegra_pmc_core_pd_opp_to_performance_state(struct generic_pm_domain *genpd,
1406 struct dev_pm_opp *opp)
1408 return dev_pm_opp_get_level(opp);
1411 static int tegra_pmc_core_pd_add(struct tegra_pmc *pmc, struct device_node *np)
1413 struct generic_pm_domain *genpd;
1414 const char *rname[] = { "core", NULL};
1417 genpd = devm_kzalloc(pmc->dev, sizeof(*genpd), GFP_KERNEL);
1421 genpd->name = "core";
1422 genpd->set_performance_state = tegra_pmc_core_pd_set_performance_state;
1423 genpd->opp_to_performance_state = tegra_pmc_core_pd_opp_to_performance_state;
1425 err = devm_pm_opp_set_regulators(pmc->dev, rname);
1427 return dev_err_probe(pmc->dev, err,
1428 "failed to set core OPP regulator\n");
1430 err = pm_genpd_init(genpd, NULL, false);
1432 dev_err(pmc->dev, "failed to init core genpd: %d\n", err);
1436 err = of_genpd_add_provider_simple(np, genpd);
1438 dev_err(pmc->dev, "failed to add core genpd: %d\n", err);
1442 pmc->core_domain_registered = true;
1447 pm_genpd_remove(genpd);
1452 static int tegra_powergate_init(struct tegra_pmc *pmc,
1453 struct device_node *parent)
1455 struct of_phandle_args child_args, parent_args;
1456 struct device_node *np, *child;
1460 * Core power domain is the parent of powergate domains, hence it
1461 * should be registered first.
1463 np = of_get_child_by_name(parent, "core-domain");
1465 err = tegra_pmc_core_pd_add(pmc, np);
1471 np = of_get_child_by_name(parent, "powergates");
1475 for_each_child_of_node(np, child) {
1476 err = tegra_powergate_add(pmc, child);
1482 if (of_parse_phandle_with_args(child, "power-domains",
1483 "#power-domain-cells",
1487 child_args.np = child;
1488 child_args.args_count = 0;
1490 err = of_genpd_add_subdomain(&parent_args, &child_args);
1491 of_node_put(parent_args.np);
1503 static void tegra_powergate_remove(struct generic_pm_domain *genpd)
1505 struct tegra_powergate *pg = to_powergate(genpd);
1507 reset_control_put(pg->reset);
1509 while (pg->num_clks--)
1510 clk_put(pg->clks[pg->num_clks]);
1514 set_bit(pg->id, pmc->powergates_available);
1519 static void tegra_powergate_remove_all(struct device_node *parent)
1521 struct generic_pm_domain *genpd;
1522 struct device_node *np, *child;
1524 np = of_get_child_by_name(parent, "powergates");
1528 for_each_child_of_node(np, child) {
1529 of_genpd_del_provider(child);
1531 genpd = of_genpd_remove_last(child);
1535 tegra_powergate_remove(genpd);
1540 np = of_get_child_by_name(parent, "core-domain");
1542 of_genpd_del_provider(np);
1543 of_genpd_remove_last(np);
1547 static const struct tegra_io_pad_soc *
1548 tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id)
1552 for (i = 0; i < pmc->soc->num_io_pads; i++)
1553 if (pmc->soc->io_pads[i].id == id)
1554 return &pmc->soc->io_pads[i];
1559 static int tegra_io_pad_prepare(struct tegra_pmc *pmc,
1560 const struct tegra_io_pad_soc *pad,
1561 unsigned long *request,
1562 unsigned long *status,
1565 unsigned long rate, value;
1567 if (pad->dpd == UINT_MAX)
1570 *request = pad->request;
1571 *status = pad->status;
1572 *mask = BIT(pad->dpd);
1577 dev_err(pmc->dev, "failed to get clock rate\n");
1581 tegra_pmc_writel(pmc, DPD_SAMPLE_ENABLE, DPD_SAMPLE);
1583 /* must be at least 200 ns, in APB (PCLK) clock cycles */
1584 value = DIV_ROUND_UP(1000000000, rate);
1585 value = DIV_ROUND_UP(200, value);
1586 tegra_pmc_writel(pmc, value, SEL_DPD_TIM);
1592 static int tegra_io_pad_poll(struct tegra_pmc *pmc, unsigned long offset,
1593 u32 mask, u32 val, unsigned long timeout)
1597 timeout = jiffies + msecs_to_jiffies(timeout);
1599 while (time_after(timeout, jiffies)) {
1600 value = tegra_pmc_readl(pmc, offset);
1601 if ((value & mask) == val)
1604 usleep_range(250, 1000);
1610 static void tegra_io_pad_unprepare(struct tegra_pmc *pmc)
1613 tegra_pmc_writel(pmc, DPD_SAMPLE_DISABLE, DPD_SAMPLE);
1617 * tegra_io_pad_power_enable() - enable power to I/O pad
1618 * @id: Tegra I/O pad ID for which to enable power
1620 * Returns: 0 on success or a negative error code on failure.
1622 int tegra_io_pad_power_enable(enum tegra_io_pad id)
1624 const struct tegra_io_pad_soc *pad;
1625 unsigned long request, status;
1629 pad = tegra_io_pad_find(pmc, id);
1631 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1635 mutex_lock(&pmc->powergates_lock);
1637 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1639 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1643 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_OFF | mask, request);
1645 err = tegra_io_pad_poll(pmc, status, mask, 0, 250);
1647 dev_err(pmc->dev, "failed to enable I/O pad: %d\n", err);
1651 tegra_io_pad_unprepare(pmc);
1654 mutex_unlock(&pmc->powergates_lock);
1657 EXPORT_SYMBOL(tegra_io_pad_power_enable);
1660 * tegra_io_pad_power_disable() - disable power to I/O pad
1661 * @id: Tegra I/O pad ID for which to disable power
1663 * Returns: 0 on success or a negative error code on failure.
1665 int tegra_io_pad_power_disable(enum tegra_io_pad id)
1667 const struct tegra_io_pad_soc *pad;
1668 unsigned long request, status;
1672 pad = tegra_io_pad_find(pmc, id);
1674 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1678 mutex_lock(&pmc->powergates_lock);
1680 err = tegra_io_pad_prepare(pmc, pad, &request, &status, &mask);
1682 dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err);
1686 tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_ON | mask, request);
1688 err = tegra_io_pad_poll(pmc, status, mask, mask, 250);
1690 dev_err(pmc->dev, "failed to disable I/O pad: %d\n", err);
1694 tegra_io_pad_unprepare(pmc);
1697 mutex_unlock(&pmc->powergates_lock);
1700 EXPORT_SYMBOL(tegra_io_pad_power_disable);
1702 static int tegra_io_pad_is_powered(struct tegra_pmc *pmc, enum tegra_io_pad id)
1704 const struct tegra_io_pad_soc *pad;
1705 unsigned long status;
1708 pad = tegra_io_pad_find(pmc, id);
1710 dev_err(pmc->dev, "invalid I/O pad ID %u\n", id);
1714 if (pad->dpd == UINT_MAX)
1717 status = pad->status;
1718 mask = BIT(pad->dpd);
1720 value = tegra_pmc_readl(pmc, status);
1722 return !(value & mask);
1725 static int tegra_io_pad_set_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id,
1728 const struct tegra_io_pad_soc *pad;
1731 pad = tegra_io_pad_find(pmc, id);
1735 if (pad->voltage == UINT_MAX)
1738 mutex_lock(&pmc->powergates_lock);
1740 if (pmc->soc->has_impl_33v_pwr) {
1741 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1743 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1744 value &= ~BIT(pad->voltage);
1746 value |= BIT(pad->voltage);
1748 tegra_pmc_writel(pmc, value, PMC_IMPL_E_33V_PWR);
1750 /* write-enable PMC_PWR_DET_VALUE[pad->voltage] */
1751 value = tegra_pmc_readl(pmc, PMC_PWR_DET);
1752 value |= BIT(pad->voltage);
1753 tegra_pmc_writel(pmc, value, PMC_PWR_DET);
1755 /* update I/O voltage */
1756 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1758 if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8)
1759 value &= ~BIT(pad->voltage);
1761 value |= BIT(pad->voltage);
1763 tegra_pmc_writel(pmc, value, PMC_PWR_DET_VALUE);
1766 mutex_unlock(&pmc->powergates_lock);
1768 usleep_range(100, 250);
1773 static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id)
1775 const struct tegra_io_pad_soc *pad;
1778 pad = tegra_io_pad_find(pmc, id);
1782 if (pad->voltage == UINT_MAX)
1785 if (pmc->soc->has_impl_33v_pwr)
1786 value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR);
1788 value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE);
1790 if ((value & BIT(pad->voltage)) == 0)
1791 return TEGRA_IO_PAD_VOLTAGE_1V8;
1793 return TEGRA_IO_PAD_VOLTAGE_3V3;
1797 * tegra_io_rail_power_on() - enable power to I/O rail
1798 * @id: Tegra I/O pad ID for which to enable power
1800 * See also: tegra_io_pad_power_enable()
1802 int tegra_io_rail_power_on(unsigned int id)
1804 return tegra_io_pad_power_enable(id);
1806 EXPORT_SYMBOL(tegra_io_rail_power_on);
1809 * tegra_io_rail_power_off() - disable power to I/O rail
1810 * @id: Tegra I/O pad ID for which to disable power
1812 * See also: tegra_io_pad_power_disable()
1814 int tegra_io_rail_power_off(unsigned int id)
1816 return tegra_io_pad_power_disable(id);
1818 EXPORT_SYMBOL(tegra_io_rail_power_off);
1820 #ifdef CONFIG_PM_SLEEP
1821 enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
1823 return pmc->suspend_mode;
1826 void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode)
1828 if (mode < TEGRA_SUSPEND_NONE || mode >= TEGRA_MAX_SUSPEND_MODE)
1831 pmc->suspend_mode = mode;
1834 void tegra_pmc_enter_suspend_mode(enum tegra_suspend_mode mode)
1836 unsigned long long rate = 0;
1841 case TEGRA_SUSPEND_LP1:
1845 case TEGRA_SUSPEND_LP2:
1853 if (WARN_ON_ONCE(rate == 0))
1856 ticks = pmc->cpu_good_time * rate + USEC_PER_SEC - 1;
1857 do_div(ticks, USEC_PER_SEC);
1858 tegra_pmc_writel(pmc, ticks, PMC_CPUPWRGOOD_TIMER);
1860 ticks = pmc->cpu_off_time * rate + USEC_PER_SEC - 1;
1861 do_div(ticks, USEC_PER_SEC);
1862 tegra_pmc_writel(pmc, ticks, PMC_CPUPWROFF_TIMER);
1864 value = tegra_pmc_readl(pmc, PMC_CNTRL);
1865 value &= ~PMC_CNTRL_SIDE_EFFECT_LP0;
1866 value |= PMC_CNTRL_CPU_PWRREQ_OE;
1867 tegra_pmc_writel(pmc, value, PMC_CNTRL);
1871 static int tegra_pmc_parse_dt(struct tegra_pmc *pmc, struct device_node *np)
1873 u32 value, values[2];
1875 if (of_property_read_u32(np, "nvidia,suspend-mode", &value)) {
1876 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1880 pmc->suspend_mode = TEGRA_SUSPEND_LP0;
1884 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1888 pmc->suspend_mode = TEGRA_SUSPEND_LP2;
1892 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1897 pmc->suspend_mode = tegra_pm_validate_suspend_mode(pmc->suspend_mode);
1899 if (of_property_read_u32(np, "nvidia,cpu-pwr-good-time", &value))
1900 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1902 pmc->cpu_good_time = value;
1904 if (of_property_read_u32(np, "nvidia,cpu-pwr-off-time", &value))
1905 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1907 pmc->cpu_off_time = value;
1909 if (of_property_read_u32_array(np, "nvidia,core-pwr-good-time",
1910 values, ARRAY_SIZE(values)))
1911 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1913 pmc->core_osc_time = values[0];
1914 pmc->core_pmu_time = values[1];
1916 if (of_property_read_u32(np, "nvidia,core-pwr-off-time", &value))
1917 pmc->suspend_mode = TEGRA_SUSPEND_NONE;
1919 pmc->core_off_time = value;
1921 pmc->corereq_high = of_property_read_bool(np,
1922 "nvidia,core-power-req-active-high");
1924 pmc->sysclkreq_high = of_property_read_bool(np,
1925 "nvidia,sys-clock-req-active-high");
1927 pmc->combined_req = of_property_read_bool(np,
1928 "nvidia,combined-power-req");
1930 pmc->cpu_pwr_good_en = of_property_read_bool(np,
1931 "nvidia,cpu-pwr-good-en");
1933 if (of_property_read_u32_array(np, "nvidia,lp0-vec", values,
1934 ARRAY_SIZE(values)))
1935 if (pmc->suspend_mode == TEGRA_SUSPEND_LP0)
1936 pmc->suspend_mode = TEGRA_SUSPEND_LP1;
1938 pmc->lp0_vec_phys = values[0];
1939 pmc->lp0_vec_size = values[1];
1944 static int tegra_pmc_init(struct tegra_pmc *pmc)
1946 if (pmc->soc->max_wake_events > 0) {
1947 pmc->wake_type_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1948 if (!pmc->wake_type_level_map)
1951 pmc->wake_type_dual_edge_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1952 if (!pmc->wake_type_dual_edge_map)
1955 pmc->wake_sw_status_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1956 if (!pmc->wake_sw_status_map)
1959 pmc->wake_cntrl_level_map = bitmap_zalloc(pmc->soc->max_wake_events, GFP_KERNEL);
1960 if (!pmc->wake_cntrl_level_map)
1965 pmc->soc->init(pmc);
1970 static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc)
1972 static const char disabled[] = "emergency thermal reset disabled";
1973 u32 pmu_addr, ctrl_id, reg_addr, reg_data, pinmux;
1974 struct device *dev = pmc->dev;
1975 struct device_node *np;
1976 u32 value, checksum;
1978 if (!pmc->soc->has_tsense_reset)
1981 np = of_get_child_by_name(pmc->dev->of_node, "i2c-thermtrip");
1983 dev_warn(dev, "i2c-thermtrip node not found, %s.\n", disabled);
1987 if (of_property_read_u32(np, "nvidia,i2c-controller-id", &ctrl_id)) {
1988 dev_err(dev, "I2C controller ID missing, %s.\n", disabled);
1992 if (of_property_read_u32(np, "nvidia,bus-addr", &pmu_addr)) {
1993 dev_err(dev, "nvidia,bus-addr missing, %s.\n", disabled);
1997 if (of_property_read_u32(np, "nvidia,reg-addr", ®_addr)) {
1998 dev_err(dev, "nvidia,reg-addr missing, %s.\n", disabled);
2002 if (of_property_read_u32(np, "nvidia,reg-data", ®_data)) {
2003 dev_err(dev, "nvidia,reg-data missing, %s.\n", disabled);
2007 if (of_property_read_u32(np, "nvidia,pinmux-id", &pinmux))
2010 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
2011 value |= PMC_SENSOR_CTRL_SCRATCH_WRITE;
2012 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
2014 value = (reg_data << PMC_SCRATCH54_DATA_SHIFT) |
2015 (reg_addr << PMC_SCRATCH54_ADDR_SHIFT);
2016 tegra_pmc_writel(pmc, value, PMC_SCRATCH54);
2018 value = PMC_SCRATCH55_RESET_TEGRA;
2019 value |= ctrl_id << PMC_SCRATCH55_CNTRL_ID_SHIFT;
2020 value |= pinmux << PMC_SCRATCH55_PINMUX_SHIFT;
2021 value |= pmu_addr << PMC_SCRATCH55_I2CSLV1_SHIFT;
2024 * Calculate checksum of SCRATCH54, SCRATCH55 fields. Bits 23:16 will
2025 * contain the checksum and are currently zero, so they are not added.
2027 checksum = reg_addr + reg_data + (value & 0xff) + ((value >> 8) & 0xff)
2028 + ((value >> 24) & 0xff);
2030 checksum = 0x100 - checksum;
2032 value |= checksum << PMC_SCRATCH55_CHECKSUM_SHIFT;
2034 tegra_pmc_writel(pmc, value, PMC_SCRATCH55);
2036 value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL);
2037 value |= PMC_SENSOR_CTRL_ENABLE_RST;
2038 tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL);
2040 dev_info(pmc->dev, "emergency thermal reset enabled\n");
2046 static int tegra_io_pad_pinctrl_get_groups_count(struct pinctrl_dev *pctl_dev)
2048 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2050 return pmc->soc->num_io_pads;
2053 static const char *tegra_io_pad_pinctrl_get_group_name(struct pinctrl_dev *pctl,
2056 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl);
2058 return pmc->soc->io_pads[group].name;
2061 static int tegra_io_pad_pinctrl_get_group_pins(struct pinctrl_dev *pctl_dev,
2063 const unsigned int **pins,
2064 unsigned int *num_pins)
2066 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2068 *pins = &pmc->soc->io_pads[group].id;
2074 static const struct pinctrl_ops tegra_io_pad_pinctrl_ops = {
2075 .get_groups_count = tegra_io_pad_pinctrl_get_groups_count,
2076 .get_group_name = tegra_io_pad_pinctrl_get_group_name,
2077 .get_group_pins = tegra_io_pad_pinctrl_get_group_pins,
2078 .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
2079 .dt_free_map = pinconf_generic_dt_free_map,
2082 static int tegra_io_pad_pinconf_get(struct pinctrl_dev *pctl_dev,
2083 unsigned int pin, unsigned long *config)
2085 enum pin_config_param param = pinconf_to_config_param(*config);
2086 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2087 const struct tegra_io_pad_soc *pad;
2091 pad = tegra_io_pad_find(pmc, pin);
2096 case PIN_CONFIG_POWER_SOURCE:
2097 ret = tegra_io_pad_get_voltage(pmc, pad->id);
2104 case PIN_CONFIG_MODE_LOW_POWER:
2105 ret = tegra_io_pad_is_powered(pmc, pad->id);
2116 *config = pinconf_to_config_packed(param, arg);
2121 static int tegra_io_pad_pinconf_set(struct pinctrl_dev *pctl_dev,
2122 unsigned int pin, unsigned long *configs,
2123 unsigned int num_configs)
2125 struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev);
2126 const struct tegra_io_pad_soc *pad;
2127 enum pin_config_param param;
2132 pad = tegra_io_pad_find(pmc, pin);
2136 for (i = 0; i < num_configs; ++i) {
2137 param = pinconf_to_config_param(configs[i]);
2138 arg = pinconf_to_config_argument(configs[i]);
2141 case PIN_CONFIG_MODE_LOW_POWER:
2143 err = tegra_io_pad_power_disable(pad->id);
2145 err = tegra_io_pad_power_enable(pad->id);
2149 case PIN_CONFIG_POWER_SOURCE:
2150 if (arg != TEGRA_IO_PAD_VOLTAGE_1V8 &&
2151 arg != TEGRA_IO_PAD_VOLTAGE_3V3)
2153 err = tegra_io_pad_set_voltage(pmc, pad->id, arg);
2165 static const struct pinconf_ops tegra_io_pad_pinconf_ops = {
2166 .pin_config_get = tegra_io_pad_pinconf_get,
2167 .pin_config_set = tegra_io_pad_pinconf_set,
2171 static struct pinctrl_desc tegra_pmc_pctl_desc = {
2172 .pctlops = &tegra_io_pad_pinctrl_ops,
2173 .confops = &tegra_io_pad_pinconf_ops,
2176 static int tegra_pmc_pinctrl_init(struct tegra_pmc *pmc)
2180 if (!pmc->soc->num_pin_descs)
2183 tegra_pmc_pctl_desc.name = dev_name(pmc->dev);
2184 tegra_pmc_pctl_desc.pins = pmc->soc->pin_descs;
2185 tegra_pmc_pctl_desc.npins = pmc->soc->num_pin_descs;
2187 pmc->pctl_dev = devm_pinctrl_register(pmc->dev, &tegra_pmc_pctl_desc,
2189 if (IS_ERR(pmc->pctl_dev)) {
2190 err = PTR_ERR(pmc->pctl_dev);
2191 dev_err(pmc->dev, "failed to register pin controller: %d\n",
2199 static ssize_t reset_reason_show(struct device *dev,
2200 struct device_attribute *attr, char *buf)
2204 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2205 value &= pmc->soc->regs->rst_source_mask;
2206 value >>= pmc->soc->regs->rst_source_shift;
2208 if (WARN_ON(value >= pmc->soc->num_reset_sources))
2209 return sprintf(buf, "%s\n", "UNKNOWN");
2211 return sprintf(buf, "%s\n", pmc->soc->reset_sources[value]);
2214 static DEVICE_ATTR_RO(reset_reason);
2216 static ssize_t reset_level_show(struct device *dev,
2217 struct device_attribute *attr, char *buf)
2221 value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status);
2222 value &= pmc->soc->regs->rst_level_mask;
2223 value >>= pmc->soc->regs->rst_level_shift;
2225 if (WARN_ON(value >= pmc->soc->num_reset_levels))
2226 return sprintf(buf, "%s\n", "UNKNOWN");
2228 return sprintf(buf, "%s\n", pmc->soc->reset_levels[value]);
2231 static DEVICE_ATTR_RO(reset_level);
2233 static void tegra_pmc_reset_sysfs_init(struct tegra_pmc *pmc)
2235 struct device *dev = pmc->dev;
2238 if (pmc->soc->reset_sources) {
2239 err = device_create_file(dev, &dev_attr_reset_reason);
2242 "failed to create attr \"reset_reason\": %d\n",
2246 if (pmc->soc->reset_levels) {
2247 err = device_create_file(dev, &dev_attr_reset_level);
2250 "failed to create attr \"reset_level\": %d\n",
2255 static int tegra_pmc_irq_translate(struct irq_domain *domain,
2256 struct irq_fwspec *fwspec,
2257 unsigned long *hwirq,
2260 if (WARN_ON(fwspec->param_count < 2))
2263 *hwirq = fwspec->param[0];
2264 *type = fwspec->param[1];
2269 static int tegra_pmc_irq_alloc(struct irq_domain *domain, unsigned int virq,
2270 unsigned int num_irqs, void *data)
2272 struct tegra_pmc *pmc = domain->host_data;
2273 const struct tegra_pmc_soc *soc = pmc->soc;
2274 struct irq_fwspec *fwspec = data;
2278 if (WARN_ON(num_irqs > 1))
2281 for (i = 0; i < soc->num_wake_events; i++) {
2282 const struct tegra_wake_event *event = &soc->wake_events[i];
2284 /* IRQ and simple wake events */
2285 if (fwspec->param_count == 2) {
2286 struct irq_fwspec spec;
2288 if (event->id != fwspec->param[0])
2291 err = irq_domain_set_hwirq_and_chip(domain, virq,
2297 /* simple hierarchies stop at the PMC level */
2298 if (event->irq == 0) {
2299 err = irq_domain_disconnect_hierarchy(domain->parent, virq);
2303 spec.fwnode = &pmc->dev->of_node->fwnode;
2304 spec.param_count = 3;
2305 spec.param[0] = GIC_SPI;
2306 spec.param[1] = event->irq;
2307 spec.param[2] = fwspec->param[1];
2309 err = irq_domain_alloc_irqs_parent(domain, virq,
2315 /* GPIO wake events */
2316 if (fwspec->param_count == 3) {
2317 if (event->gpio.instance != fwspec->param[0] ||
2318 event->gpio.pin != fwspec->param[1])
2321 err = irq_domain_set_hwirq_and_chip(domain, virq,
2325 /* GPIO hierarchies stop at the PMC level */
2326 if (!err && domain->parent)
2327 err = irq_domain_disconnect_hierarchy(domain->parent,
2333 /* If there is no wake-up event, there is no PMC mapping */
2334 if (i == soc->num_wake_events)
2335 err = irq_domain_disconnect_hierarchy(domain, virq);
2340 static const struct irq_domain_ops tegra_pmc_irq_domain_ops = {
2341 .translate = tegra_pmc_irq_translate,
2342 .alloc = tegra_pmc_irq_alloc,
2345 static int tegra210_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2347 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2348 unsigned int offset, bit;
2351 offset = data->hwirq / 32;
2352 bit = data->hwirq % 32;
2354 /* clear wake status */
2355 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE_STATUS);
2356 tegra_pmc_writel(pmc, 0, PMC_SW_WAKE2_STATUS);
2358 tegra_pmc_writel(pmc, 0, PMC_WAKE_STATUS);
2359 tegra_pmc_writel(pmc, 0, PMC_WAKE2_STATUS);
2361 /* enable PMC wake */
2362 if (data->hwirq >= 32)
2363 offset = PMC_WAKE2_MASK;
2365 offset = PMC_WAKE_MASK;
2367 value = tegra_pmc_readl(pmc, offset);
2374 tegra_pmc_writel(pmc, value, offset);
2379 static int tegra210_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2381 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2382 unsigned int offset, bit;
2385 offset = data->hwirq / 32;
2386 bit = data->hwirq % 32;
2388 if (data->hwirq >= 32)
2389 offset = PMC_WAKE2_LEVEL;
2391 offset = PMC_WAKE_LEVEL;
2393 value = tegra_pmc_readl(pmc, offset);
2396 case IRQ_TYPE_EDGE_RISING:
2397 case IRQ_TYPE_LEVEL_HIGH:
2401 case IRQ_TYPE_EDGE_FALLING:
2402 case IRQ_TYPE_LEVEL_LOW:
2406 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2414 tegra_pmc_writel(pmc, value, offset);
2419 static int tegra186_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
2421 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2422 unsigned int offset, bit;
2425 offset = data->hwirq / 32;
2426 bit = data->hwirq % 32;
2428 /* clear wake status */
2429 writel(0x1, pmc->wake + WAKE_AOWAKE_STATUS_W(data->hwirq));
2431 /* route wake to tier 2 */
2432 value = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2435 value &= ~(1 << bit);
2439 writel(value, pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(offset));
2441 /* enable wakeup event */
2442 writel(!!on, pmc->wake + WAKE_AOWAKE_MASK_W(data->hwirq));
2447 static int tegra186_pmc_irq_set_type(struct irq_data *data, unsigned int type)
2449 struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
2452 value = readl(pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2455 case IRQ_TYPE_EDGE_RISING:
2456 case IRQ_TYPE_LEVEL_HIGH:
2457 value |= WAKE_AOWAKE_CNTRL_LEVEL;
2458 set_bit(data->hwirq, pmc->wake_type_level_map);
2459 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2462 case IRQ_TYPE_EDGE_FALLING:
2463 case IRQ_TYPE_LEVEL_LOW:
2464 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
2465 clear_bit(data->hwirq, pmc->wake_type_level_map);
2466 clear_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2469 case IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING:
2470 value ^= WAKE_AOWAKE_CNTRL_LEVEL;
2471 clear_bit(data->hwirq, pmc->wake_type_level_map);
2472 set_bit(data->hwirq, pmc->wake_type_dual_edge_map);
2479 writel(value, pmc->wake + WAKE_AOWAKE_CNTRL(data->hwirq));
2484 static void tegra_irq_mask_parent(struct irq_data *data)
2486 if (data->parent_data)
2487 irq_chip_mask_parent(data);
2490 static void tegra_irq_unmask_parent(struct irq_data *data)
2492 if (data->parent_data)
2493 irq_chip_unmask_parent(data);
2496 static void tegra_irq_eoi_parent(struct irq_data *data)
2498 if (data->parent_data)
2499 irq_chip_eoi_parent(data);
2502 static int tegra_irq_set_affinity_parent(struct irq_data *data,
2503 const struct cpumask *dest,
2506 if (data->parent_data)
2507 return irq_chip_set_affinity_parent(data, dest, force);
2512 static int tegra_pmc_irq_init(struct tegra_pmc *pmc)
2514 struct irq_domain *parent = NULL;
2515 struct device_node *np;
2517 np = of_irq_find_parent(pmc->dev->of_node);
2519 parent = irq_find_host(np);
2526 pmc->irq.name = dev_name(pmc->dev);
2527 pmc->irq.irq_mask = tegra_irq_mask_parent;
2528 pmc->irq.irq_unmask = tegra_irq_unmask_parent;
2529 pmc->irq.irq_eoi = tegra_irq_eoi_parent;
2530 pmc->irq.irq_set_affinity = tegra_irq_set_affinity_parent;
2531 pmc->irq.irq_set_type = pmc->soc->irq_set_type;
2532 pmc->irq.irq_set_wake = pmc->soc->irq_set_wake;
2534 pmc->domain = irq_domain_add_hierarchy(parent, 0, 96, pmc->dev->of_node,
2535 &tegra_pmc_irq_domain_ops, pmc);
2537 dev_err(pmc->dev, "failed to allocate domain\n");
2544 static int tegra_pmc_clk_notify_cb(struct notifier_block *nb,
2545 unsigned long action, void *ptr)
2547 struct tegra_pmc *pmc = container_of(nb, struct tegra_pmc, clk_nb);
2548 struct clk_notifier_data *data = ptr;
2551 case PRE_RATE_CHANGE:
2552 mutex_lock(&pmc->powergates_lock);
2555 case POST_RATE_CHANGE:
2556 pmc->rate = data->new_rate;
2559 case ABORT_RATE_CHANGE:
2560 mutex_unlock(&pmc->powergates_lock);
2565 return notifier_from_errno(-EINVAL);
2571 static void pmc_clk_fence_udelay(u32 offset)
2573 tegra_pmc_readl(pmc, offset);
2574 /* pmc clk propagation delay 2 us */
2578 static u8 pmc_clk_mux_get_parent(struct clk_hw *hw)
2580 struct pmc_clk *clk = to_pmc_clk(hw);
2583 val = tegra_pmc_readl(pmc, clk->offs) >> clk->mux_shift;
2584 val &= PMC_CLK_OUT_MUX_MASK;
2589 static int pmc_clk_mux_set_parent(struct clk_hw *hw, u8 index)
2591 struct pmc_clk *clk = to_pmc_clk(hw);
2594 val = tegra_pmc_readl(pmc, clk->offs);
2595 val &= ~(PMC_CLK_OUT_MUX_MASK << clk->mux_shift);
2596 val |= index << clk->mux_shift;
2597 tegra_pmc_writel(pmc, val, clk->offs);
2598 pmc_clk_fence_udelay(clk->offs);
2603 static int pmc_clk_is_enabled(struct clk_hw *hw)
2605 struct pmc_clk *clk = to_pmc_clk(hw);
2608 val = tegra_pmc_readl(pmc, clk->offs) & BIT(clk->force_en_shift);
2613 static void pmc_clk_set_state(unsigned long offs, u32 shift, int state)
2617 val = tegra_pmc_readl(pmc, offs);
2618 val = state ? (val | BIT(shift)) : (val & ~BIT(shift));
2619 tegra_pmc_writel(pmc, val, offs);
2620 pmc_clk_fence_udelay(offs);
2623 static int pmc_clk_enable(struct clk_hw *hw)
2625 struct pmc_clk *clk = to_pmc_clk(hw);
2627 pmc_clk_set_state(clk->offs, clk->force_en_shift, 1);
2632 static void pmc_clk_disable(struct clk_hw *hw)
2634 struct pmc_clk *clk = to_pmc_clk(hw);
2636 pmc_clk_set_state(clk->offs, clk->force_en_shift, 0);
2639 static const struct clk_ops pmc_clk_ops = {
2640 .get_parent = pmc_clk_mux_get_parent,
2641 .set_parent = pmc_clk_mux_set_parent,
2642 .determine_rate = __clk_mux_determine_rate,
2643 .is_enabled = pmc_clk_is_enabled,
2644 .enable = pmc_clk_enable,
2645 .disable = pmc_clk_disable,
2649 tegra_pmc_clk_out_register(struct tegra_pmc *pmc,
2650 const struct pmc_clk_init_data *data,
2651 unsigned long offset)
2653 struct clk_init_data init;
2654 struct pmc_clk *pmc_clk;
2656 pmc_clk = devm_kzalloc(pmc->dev, sizeof(*pmc_clk), GFP_KERNEL);
2658 return ERR_PTR(-ENOMEM);
2660 init.name = data->name;
2661 init.ops = &pmc_clk_ops;
2662 init.parent_names = data->parents;
2663 init.num_parents = data->num_parents;
2664 init.flags = CLK_SET_RATE_NO_REPARENT | CLK_SET_RATE_PARENT |
2665 CLK_SET_PARENT_GATE;
2667 pmc_clk->hw.init = &init;
2668 pmc_clk->offs = offset;
2669 pmc_clk->mux_shift = data->mux_shift;
2670 pmc_clk->force_en_shift = data->force_en_shift;
2672 return clk_register(NULL, &pmc_clk->hw);
2675 static int pmc_clk_gate_is_enabled(struct clk_hw *hw)
2677 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2679 return tegra_pmc_readl(pmc, gate->offs) & BIT(gate->shift) ? 1 : 0;
2682 static int pmc_clk_gate_enable(struct clk_hw *hw)
2684 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2686 pmc_clk_set_state(gate->offs, gate->shift, 1);
2691 static void pmc_clk_gate_disable(struct clk_hw *hw)
2693 struct pmc_clk_gate *gate = to_pmc_clk_gate(hw);
2695 pmc_clk_set_state(gate->offs, gate->shift, 0);
2698 static const struct clk_ops pmc_clk_gate_ops = {
2699 .is_enabled = pmc_clk_gate_is_enabled,
2700 .enable = pmc_clk_gate_enable,
2701 .disable = pmc_clk_gate_disable,
2705 tegra_pmc_clk_gate_register(struct tegra_pmc *pmc, const char *name,
2706 const char *parent_name, unsigned long offset,
2709 struct clk_init_data init;
2710 struct pmc_clk_gate *gate;
2712 gate = devm_kzalloc(pmc->dev, sizeof(*gate), GFP_KERNEL);
2714 return ERR_PTR(-ENOMEM);
2717 init.ops = &pmc_clk_gate_ops;
2718 init.parent_names = &parent_name;
2719 init.num_parents = 1;
2722 gate->hw.init = &init;
2723 gate->offs = offset;
2724 gate->shift = shift;
2726 return clk_register(NULL, &gate->hw);
2729 static void tegra_pmc_clock_register(struct tegra_pmc *pmc,
2730 struct device_node *np)
2733 struct clk_onecell_data *clk_data;
2734 unsigned int num_clks;
2737 num_clks = pmc->soc->num_pmc_clks;
2738 if (pmc->soc->has_blink_output)
2744 clk_data = devm_kmalloc(pmc->dev, sizeof(*clk_data), GFP_KERNEL);
2748 clk_data->clks = devm_kcalloc(pmc->dev, TEGRA_PMC_CLK_MAX,
2749 sizeof(*clk_data->clks), GFP_KERNEL);
2750 if (!clk_data->clks)
2753 clk_data->clk_num = TEGRA_PMC_CLK_MAX;
2755 for (i = 0; i < TEGRA_PMC_CLK_MAX; i++)
2756 clk_data->clks[i] = ERR_PTR(-ENOENT);
2758 for (i = 0; i < pmc->soc->num_pmc_clks; i++) {
2759 const struct pmc_clk_init_data *data;
2761 data = pmc->soc->pmc_clks_data + i;
2763 clk = tegra_pmc_clk_out_register(pmc, data, PMC_CLK_OUT_CNTRL);
2765 dev_warn(pmc->dev, "unable to register clock %s: %d\n",
2766 data->name, PTR_ERR_OR_ZERO(clk));
2770 err = clk_register_clkdev(clk, data->name, NULL);
2773 "unable to register %s clock lookup: %d\n",
2778 clk_data->clks[data->clk_id] = clk;
2781 if (pmc->soc->has_blink_output) {
2782 tegra_pmc_writel(pmc, 0x0, PMC_BLINK_TIMER);
2783 clk = tegra_pmc_clk_gate_register(pmc,
2784 "pmc_blink_override",
2787 PMC_DPD_PADS_ORIDE_BLINK);
2790 "unable to register pmc_blink_override: %d\n",
2791 PTR_ERR_OR_ZERO(clk));
2795 clk = tegra_pmc_clk_gate_register(pmc, "pmc_blink",
2796 "pmc_blink_override",
2798 PMC_CNTRL_BLINK_EN);
2801 "unable to register pmc_blink: %d\n",
2802 PTR_ERR_OR_ZERO(clk));
2806 err = clk_register_clkdev(clk, "pmc_blink", NULL);
2809 "unable to register pmc_blink lookup: %d\n",
2814 clk_data->clks[TEGRA_PMC_CLK_BLINK] = clk;
2817 err = of_clk_add_provider(np, of_clk_src_onecell_get, clk_data);
2819 dev_warn(pmc->dev, "failed to add pmc clock provider: %d\n",
2823 static const struct regmap_range pmc_usb_sleepwalk_ranges[] = {
2824 regmap_reg_range(PMC_USB_DEBOUNCE_DEL, PMC_USB_AO),
2825 regmap_reg_range(PMC_UTMIP_UHSIC_TRIGGERS, PMC_UTMIP_UHSIC_SAVED_STATE),
2826 regmap_reg_range(PMC_UTMIP_TERM_PAD_CFG, PMC_UTMIP_UHSIC_FAKE),
2827 regmap_reg_range(PMC_UTMIP_UHSIC_LINE_WAKEUP, PMC_UTMIP_UHSIC_LINE_WAKEUP),
2828 regmap_reg_range(PMC_UTMIP_BIAS_MASTER_CNTRL, PMC_UTMIP_MASTER_CONFIG),
2829 regmap_reg_range(PMC_UTMIP_UHSIC2_TRIGGERS, PMC_UTMIP_MASTER2_CONFIG),
2830 regmap_reg_range(PMC_UTMIP_PAD_CFG0, PMC_UTMIP_UHSIC_SLEEP_CFG1),
2831 regmap_reg_range(PMC_UTMIP_SLEEPWALK_P3, PMC_UTMIP_SLEEPWALK_P3),
2834 static const struct regmap_access_table pmc_usb_sleepwalk_table = {
2835 .yes_ranges = pmc_usb_sleepwalk_ranges,
2836 .n_yes_ranges = ARRAY_SIZE(pmc_usb_sleepwalk_ranges),
2839 static int tegra_pmc_regmap_readl(void *context, unsigned int offset, unsigned int *value)
2841 struct tegra_pmc *pmc = context;
2843 *value = tegra_pmc_readl(pmc, offset);
2847 static int tegra_pmc_regmap_writel(void *context, unsigned int offset, unsigned int value)
2849 struct tegra_pmc *pmc = context;
2851 tegra_pmc_writel(pmc, value, offset);
2855 static const struct regmap_config usb_sleepwalk_regmap_config = {
2856 .name = "usb_sleepwalk",
2861 .rd_table = &pmc_usb_sleepwalk_table,
2862 .wr_table = &pmc_usb_sleepwalk_table,
2863 .reg_read = tegra_pmc_regmap_readl,
2864 .reg_write = tegra_pmc_regmap_writel,
2867 static int tegra_pmc_regmap_init(struct tegra_pmc *pmc)
2869 struct regmap *regmap;
2872 if (pmc->soc->has_usb_sleepwalk) {
2873 regmap = devm_regmap_init(pmc->dev, NULL, pmc, &usb_sleepwalk_regmap_config);
2874 if (IS_ERR(regmap)) {
2875 err = PTR_ERR(regmap);
2876 dev_err(pmc->dev, "failed to allocate register map (%d)\n", err);
2884 static void tegra_pmc_reset_suspend_mode(void *data)
2886 pmc->suspend_mode = TEGRA_SUSPEND_NOT_READY;
2889 static int tegra_pmc_probe(struct platform_device *pdev)
2892 struct resource *res;
2896 * Early initialisation should have configured an initial
2897 * register mapping and setup the soc data pointer. If these
2898 * are not valid then something went badly wrong!
2900 if (WARN_ON(!pmc->base || !pmc->soc))
2903 err = tegra_pmc_parse_dt(pmc, pdev->dev.of_node);
2907 err = devm_add_action_or_reset(&pdev->dev, tegra_pmc_reset_suspend_mode,
2912 /* take over the memory region from the early initialization */
2913 base = devm_platform_ioremap_resource(pdev, 0);
2915 return PTR_ERR(base);
2917 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wake");
2919 pmc->wake = devm_ioremap_resource(&pdev->dev, res);
2920 if (IS_ERR(pmc->wake))
2921 return PTR_ERR(pmc->wake);
2926 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aotag");
2928 pmc->aotag = devm_ioremap_resource(&pdev->dev, res);
2929 if (IS_ERR(pmc->aotag))
2930 return PTR_ERR(pmc->aotag);
2935 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scratch");
2937 pmc->scratch = devm_ioremap_resource(&pdev->dev, res);
2938 if (IS_ERR(pmc->scratch))
2939 return PTR_ERR(pmc->scratch);
2941 pmc->scratch = base;
2944 pmc->clk = devm_clk_get_optional(&pdev->dev, "pclk");
2945 if (IS_ERR(pmc->clk))
2946 return dev_err_probe(&pdev->dev, PTR_ERR(pmc->clk),
2947 "failed to get pclk\n");
2950 * PMC should be last resort for restarting since it soft-resets
2951 * CPU without resetting everything else.
2953 err = devm_register_reboot_notifier(&pdev->dev,
2954 &tegra_pmc_reboot_notifier);
2956 dev_err(&pdev->dev, "unable to register reboot notifier, %d\n",
2961 err = devm_register_sys_off_handler(&pdev->dev,
2962 SYS_OFF_MODE_RESTART,
2964 tegra_pmc_restart_handler, NULL);
2966 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
2972 * PMC should be primary power-off method if it soft-resets CPU,
2973 * asking bootloader to shutdown hardware.
2975 err = devm_register_sys_off_handler(&pdev->dev,
2976 SYS_OFF_MODE_POWER_OFF,
2977 SYS_OFF_PRIO_FIRMWARE,
2978 tegra_pmc_power_off_handler, NULL);
2980 dev_err(&pdev->dev, "failed to register sys-off handler: %d\n",
2986 * PCLK clock rate can't be retrieved using CLK API because it
2987 * causes lockup if CPU enters LP2 idle state from some other
2988 * CLK notifier, hence we're caching the rate's value locally.
2991 pmc->clk_nb.notifier_call = tegra_pmc_clk_notify_cb;
2992 err = clk_notifier_register(pmc->clk, &pmc->clk_nb);
2995 "failed to register clk notifier\n");
2999 pmc->rate = clk_get_rate(pmc->clk);
3002 pmc->dev = &pdev->dev;
3004 err = tegra_pmc_init(pmc);
3006 dev_err(&pdev->dev, "failed to initialize PMC: %d\n", err);
3010 tegra_pmc_init_tsense_reset(pmc);
3012 tegra_pmc_reset_sysfs_init(pmc);
3014 if (IS_ENABLED(CONFIG_DEBUG_FS)) {
3015 err = tegra_powergate_debugfs_init();
3020 err = tegra_pmc_pinctrl_init(pmc);
3022 goto cleanup_debugfs;
3024 err = tegra_pmc_regmap_init(pmc);
3026 goto cleanup_debugfs;
3028 err = tegra_powergate_init(pmc, pdev->dev.of_node);
3030 goto cleanup_powergates;
3032 err = tegra_pmc_irq_init(pmc);
3034 goto cleanup_powergates;
3036 mutex_lock(&pmc->powergates_lock);
3039 mutex_unlock(&pmc->powergates_lock);
3041 tegra_pmc_clock_register(pmc, pdev->dev.of_node);
3042 platform_set_drvdata(pdev, pmc);
3043 tegra_pm_init_suspend();
3048 tegra_powergate_remove_all(pdev->dev.of_node);
3050 debugfs_remove(pmc->debugfs);
3052 device_remove_file(&pdev->dev, &dev_attr_reset_reason);
3053 device_remove_file(&pdev->dev, &dev_attr_reset_level);
3054 clk_notifier_unregister(pmc->clk, &pmc->clk_nb);
3060 * Ensures that sufficient time is passed for a register write to
3061 * serialize into the 32KHz domain.
3063 static void wke_32kwritel(struct tegra_pmc *pmc, u32 value, unsigned int offset)
3065 writel(value, pmc->wake + offset);
3069 static void wke_write_wake_level(struct tegra_pmc *pmc, int wake, int level)
3071 unsigned int offset = WAKE_AOWAKE_CNTRL(wake);
3074 value = readl(pmc->wake + offset);
3076 value |= WAKE_AOWAKE_CNTRL_LEVEL;
3078 value &= ~WAKE_AOWAKE_CNTRL_LEVEL;
3080 writel(value, pmc->wake + offset);
3083 static void wke_write_wake_levels(struct tegra_pmc *pmc)
3087 for (i = 0; i < pmc->soc->max_wake_events; i++)
3088 wke_write_wake_level(pmc, i, test_bit(i, pmc->wake_cntrl_level_map));
3091 static void wke_clear_sw_wake_status(struct tegra_pmc *pmc)
3093 wke_32kwritel(pmc, 1, WAKE_AOWAKE_SW_STATUS_W_0);
3096 static void wke_read_sw_wake_status(struct tegra_pmc *pmc)
3098 unsigned long status;
3099 unsigned int wake, i;
3101 for (i = 0; i < pmc->soc->max_wake_events; i++)
3102 wke_write_wake_level(pmc, i, 0);
3104 wke_clear_sw_wake_status(pmc);
3106 wke_32kwritel(pmc, 1, WAKE_LATCH_SW);
3109 * WAKE_AOWAKE_SW_STATUS is edge triggered, so in order to
3110 * obtain the current status of the input wake signals, change
3111 * the polarity of the wake level from 0->1 while latching to force
3112 * a positive edge if the sampled signal is '1'.
3114 for (i = 0; i < pmc->soc->max_wake_events; i++)
3115 wke_write_wake_level(pmc, i, 1);
3118 * Wait for the update to be synced into the 32kHz domain,
3119 * and let enough time lapse, so that the wake signals have time to
3124 wke_32kwritel(pmc, 0, WAKE_LATCH_SW);
3126 bitmap_zero(pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3128 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3129 status = readl(pmc->wake + WAKE_AOWAKE_SW_STATUS(i));
3131 for_each_set_bit(wake, &status, 32)
3132 set_bit(wake + (i * 32), pmc->wake_sw_status_map);
3136 static void wke_clear_wake_status(struct tegra_pmc *pmc)
3138 unsigned long status;
3139 unsigned int i, wake;
3142 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3143 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3144 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3146 for_each_set_bit(wake, &status, 32)
3147 wke_32kwritel(pmc, 0x1, WAKE_AOWAKE_STATUS_W((i * 32) + wake));
3151 /* translate sc7 wake sources back into IRQs to catch edge triggered wakeups */
3152 static void tegra186_pmc_process_wake_events(struct tegra_pmc *pmc, unsigned int index,
3153 unsigned long status)
3157 dev_dbg(pmc->dev, "Wake[%d:%d] status=%#lx\n", (index * 32) + 31, index * 32, status);
3159 for_each_set_bit(wake, &status, 32) {
3160 irq_hw_number_t hwirq = wake + 32 * index;
3161 struct irq_desc *desc;
3164 irq = irq_find_mapping(pmc->domain, hwirq);
3166 desc = irq_to_desc(irq);
3167 if (!desc || !desc->action || !desc->action->name) {
3168 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, IRQ %d\n", hwirq, irq);
3172 dev_dbg(pmc->dev, "Resume caused by WAKE%ld, %s\n", hwirq, desc->action->name);
3173 generic_handle_irq(irq);
3177 static void tegra186_pmc_wake_syscore_resume(void)
3182 for (i = 0; i < pmc->soc->max_wake_vectors; i++) {
3183 mask = readl(pmc->wake + WAKE_AOWAKE_TIER2_ROUTING(i));
3184 status = readl(pmc->wake + WAKE_AOWAKE_STATUS_R(i)) & mask;
3186 tegra186_pmc_process_wake_events(pmc, i, status);
3190 static int tegra186_pmc_wake_syscore_suspend(void)
3192 wke_read_sw_wake_status(pmc);
3194 /* flip the wakeup trigger for dual-edge triggered pads
3195 * which are currently asserting as wakeups
3197 bitmap_andnot(pmc->wake_cntrl_level_map, pmc->wake_type_dual_edge_map,
3198 pmc->wake_sw_status_map, pmc->soc->max_wake_events);
3199 bitmap_or(pmc->wake_cntrl_level_map, pmc->wake_cntrl_level_map,
3200 pmc->wake_type_level_map, pmc->soc->max_wake_events);
3202 /* Clear PMC Wake Status registers while going to suspend */
3203 wke_clear_wake_status(pmc);
3204 wke_write_wake_levels(pmc);
3209 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
3210 static int tegra_pmc_suspend(struct device *dev)
3212 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3214 tegra_pmc_writel(pmc, virt_to_phys(tegra_resume), PMC_SCRATCH41);
3219 static int tegra_pmc_resume(struct device *dev)
3221 struct tegra_pmc *pmc = dev_get_drvdata(dev);
3223 tegra_pmc_writel(pmc, 0x0, PMC_SCRATCH41);
3228 static SIMPLE_DEV_PM_OPS(tegra_pmc_pm_ops, tegra_pmc_suspend, tegra_pmc_resume);
3232 static const char * const tegra20_powergates[] = {
3233 [TEGRA_POWERGATE_CPU] = "cpu",
3234 [TEGRA_POWERGATE_3D] = "td",
3235 [TEGRA_POWERGATE_VENC] = "venc",
3236 [TEGRA_POWERGATE_VDEC] = "vdec",
3237 [TEGRA_POWERGATE_PCIE] = "pcie",
3238 [TEGRA_POWERGATE_L2] = "l2",
3239 [TEGRA_POWERGATE_MPE] = "mpe",
3242 static const struct tegra_pmc_regs tegra20_pmc_regs = {
3244 .rst_status = 0x1b4,
3245 .rst_source_shift = 0x0,
3246 .rst_source_mask = 0x7,
3247 .rst_level_shift = 0x0,
3248 .rst_level_mask = 0x0,
3251 static void tegra20_pmc_init(struct tegra_pmc *pmc)
3253 u32 value, osc, pmu, off;
3255 /* Always enable CPU power request */
3256 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3257 value |= PMC_CNTRL_CPU_PWRREQ_OE;
3258 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3260 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3262 if (pmc->sysclkreq_high)
3263 value &= ~PMC_CNTRL_SYSCLK_POLARITY;
3265 value |= PMC_CNTRL_SYSCLK_POLARITY;
3267 if (pmc->corereq_high)
3268 value &= ~PMC_CNTRL_PWRREQ_POLARITY;
3270 value |= PMC_CNTRL_PWRREQ_POLARITY;
3272 /* configure the output polarity while the request is tristated */
3273 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3275 /* now enable the request */
3276 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3277 value |= PMC_CNTRL_SYSCLK_OE;
3278 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3280 /* program core timings which are applicable only for suspend state */
3281 if (pmc->suspend_mode != TEGRA_SUSPEND_NONE) {
3282 osc = DIV_ROUND_UP(pmc->core_osc_time * 8192, 1000000);
3283 pmu = DIV_ROUND_UP(pmc->core_pmu_time * 32768, 1000000);
3284 off = DIV_ROUND_UP(pmc->core_off_time * 32768, 1000000);
3285 tegra_pmc_writel(pmc, ((osc << 8) & 0xff00) | (pmu & 0xff),
3286 PMC_COREPWRGOOD_TIMER);
3287 tegra_pmc_writel(pmc, off, PMC_COREPWROFF_TIMER);
3291 static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3292 struct device_node *np,
3297 value = tegra_pmc_readl(pmc, PMC_CNTRL);
3300 value |= PMC_CNTRL_INTR_POLARITY;
3302 value &= ~PMC_CNTRL_INTR_POLARITY;
3304 tegra_pmc_writel(pmc, value, PMC_CNTRL);
3307 static const struct tegra_pmc_soc tegra20_pmc_soc = {
3308 .supports_core_domain = true,
3309 .num_powergates = ARRAY_SIZE(tegra20_powergates),
3310 .powergates = tegra20_powergates,
3311 .num_cpu_powergates = 0,
3312 .cpu_powergates = NULL,
3313 .has_tsense_reset = false,
3314 .has_gpu_clamps = false,
3315 .needs_mbist_war = false,
3316 .has_impl_33v_pwr = false,
3317 .maybe_tz_only = false,
3322 .regs = &tegra20_pmc_regs,
3323 .init = tegra20_pmc_init,
3324 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3325 .powergate_set = tegra20_powergate_set,
3326 .reset_sources = NULL,
3327 .num_reset_sources = 0,
3328 .reset_levels = NULL,
3329 .num_reset_levels = 0,
3330 .pmc_clks_data = NULL,
3332 .has_blink_output = true,
3333 .has_usb_sleepwalk = true,
3336 static const char * const tegra30_powergates[] = {
3337 [TEGRA_POWERGATE_CPU] = "cpu0",
3338 [TEGRA_POWERGATE_3D] = "td",
3339 [TEGRA_POWERGATE_VENC] = "venc",
3340 [TEGRA_POWERGATE_VDEC] = "vdec",
3341 [TEGRA_POWERGATE_PCIE] = "pcie",
3342 [TEGRA_POWERGATE_L2] = "l2",
3343 [TEGRA_POWERGATE_MPE] = "mpe",
3344 [TEGRA_POWERGATE_HEG] = "heg",
3345 [TEGRA_POWERGATE_SATA] = "sata",
3346 [TEGRA_POWERGATE_CPU1] = "cpu1",
3347 [TEGRA_POWERGATE_CPU2] = "cpu2",
3348 [TEGRA_POWERGATE_CPU3] = "cpu3",
3349 [TEGRA_POWERGATE_CELP] = "celp",
3350 [TEGRA_POWERGATE_3D1] = "td2",
3353 static const u8 tegra30_cpu_powergates[] = {
3354 TEGRA_POWERGATE_CPU,
3355 TEGRA_POWERGATE_CPU1,
3356 TEGRA_POWERGATE_CPU2,
3357 TEGRA_POWERGATE_CPU3,
3360 static const char * const tegra30_reset_sources[] = {
3368 static const struct tegra_pmc_soc tegra30_pmc_soc = {
3369 .supports_core_domain = true,
3370 .num_powergates = ARRAY_SIZE(tegra30_powergates),
3371 .powergates = tegra30_powergates,
3372 .num_cpu_powergates = ARRAY_SIZE(tegra30_cpu_powergates),
3373 .cpu_powergates = tegra30_cpu_powergates,
3374 .has_tsense_reset = true,
3375 .has_gpu_clamps = false,
3376 .needs_mbist_war = false,
3377 .has_impl_33v_pwr = false,
3378 .maybe_tz_only = false,
3383 .regs = &tegra20_pmc_regs,
3384 .init = tegra20_pmc_init,
3385 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3386 .powergate_set = tegra20_powergate_set,
3387 .reset_sources = tegra30_reset_sources,
3388 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3389 .reset_levels = NULL,
3390 .num_reset_levels = 0,
3391 .pmc_clks_data = tegra_pmc_clks_data,
3392 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3393 .has_blink_output = true,
3394 .has_usb_sleepwalk = true,
3397 static const char * const tegra114_powergates[] = {
3398 [TEGRA_POWERGATE_CPU] = "crail",
3399 [TEGRA_POWERGATE_3D] = "td",
3400 [TEGRA_POWERGATE_VENC] = "venc",
3401 [TEGRA_POWERGATE_VDEC] = "vdec",
3402 [TEGRA_POWERGATE_MPE] = "mpe",
3403 [TEGRA_POWERGATE_HEG] = "heg",
3404 [TEGRA_POWERGATE_CPU1] = "cpu1",
3405 [TEGRA_POWERGATE_CPU2] = "cpu2",
3406 [TEGRA_POWERGATE_CPU3] = "cpu3",
3407 [TEGRA_POWERGATE_CELP] = "celp",
3408 [TEGRA_POWERGATE_CPU0] = "cpu0",
3409 [TEGRA_POWERGATE_C0NC] = "c0nc",
3410 [TEGRA_POWERGATE_C1NC] = "c1nc",
3411 [TEGRA_POWERGATE_DIS] = "dis",
3412 [TEGRA_POWERGATE_DISB] = "disb",
3413 [TEGRA_POWERGATE_XUSBA] = "xusba",
3414 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3415 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3418 static const u8 tegra114_cpu_powergates[] = {
3419 TEGRA_POWERGATE_CPU0,
3420 TEGRA_POWERGATE_CPU1,
3421 TEGRA_POWERGATE_CPU2,
3422 TEGRA_POWERGATE_CPU3,
3425 static const struct tegra_pmc_soc tegra114_pmc_soc = {
3426 .supports_core_domain = false,
3427 .num_powergates = ARRAY_SIZE(tegra114_powergates),
3428 .powergates = tegra114_powergates,
3429 .num_cpu_powergates = ARRAY_SIZE(tegra114_cpu_powergates),
3430 .cpu_powergates = tegra114_cpu_powergates,
3431 .has_tsense_reset = true,
3432 .has_gpu_clamps = false,
3433 .needs_mbist_war = false,
3434 .has_impl_33v_pwr = false,
3435 .maybe_tz_only = false,
3440 .regs = &tegra20_pmc_regs,
3441 .init = tegra20_pmc_init,
3442 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3443 .powergate_set = tegra114_powergate_set,
3444 .reset_sources = tegra30_reset_sources,
3445 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3446 .reset_levels = NULL,
3447 .num_reset_levels = 0,
3448 .pmc_clks_data = tegra_pmc_clks_data,
3449 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3450 .has_blink_output = true,
3451 .has_usb_sleepwalk = true,
3454 static const char * const tegra124_powergates[] = {
3455 [TEGRA_POWERGATE_CPU] = "crail",
3456 [TEGRA_POWERGATE_3D] = "3d",
3457 [TEGRA_POWERGATE_VENC] = "venc",
3458 [TEGRA_POWERGATE_PCIE] = "pcie",
3459 [TEGRA_POWERGATE_VDEC] = "vdec",
3460 [TEGRA_POWERGATE_MPE] = "mpe",
3461 [TEGRA_POWERGATE_HEG] = "heg",
3462 [TEGRA_POWERGATE_SATA] = "sata",
3463 [TEGRA_POWERGATE_CPU1] = "cpu1",
3464 [TEGRA_POWERGATE_CPU2] = "cpu2",
3465 [TEGRA_POWERGATE_CPU3] = "cpu3",
3466 [TEGRA_POWERGATE_CELP] = "celp",
3467 [TEGRA_POWERGATE_CPU0] = "cpu0",
3468 [TEGRA_POWERGATE_C0NC] = "c0nc",
3469 [TEGRA_POWERGATE_C1NC] = "c1nc",
3470 [TEGRA_POWERGATE_SOR] = "sor",
3471 [TEGRA_POWERGATE_DIS] = "dis",
3472 [TEGRA_POWERGATE_DISB] = "disb",
3473 [TEGRA_POWERGATE_XUSBA] = "xusba",
3474 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3475 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3476 [TEGRA_POWERGATE_VIC] = "vic",
3477 [TEGRA_POWERGATE_IRAM] = "iram",
3480 static const u8 tegra124_cpu_powergates[] = {
3481 TEGRA_POWERGATE_CPU0,
3482 TEGRA_POWERGATE_CPU1,
3483 TEGRA_POWERGATE_CPU2,
3484 TEGRA_POWERGATE_CPU3,
3487 #define TEGRA_IO_PAD(_id, _dpd, _request, _status, _voltage, _name) \
3488 ((struct tegra_io_pad_soc) { \
3491 .request = (_request), \
3492 .status = (_status), \
3493 .voltage = (_voltage), \
3497 #define TEGRA_IO_PIN_DESC(_id, _name) \
3498 ((struct pinctrl_pin_desc) { \
3503 static const struct tegra_io_pad_soc tegra124_io_pads[] = {
3504 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, UINT_MAX, "audio"),
3505 TEGRA_IO_PAD(TEGRA_IO_PAD_BB, 15, 0x1b8, 0x1bc, UINT_MAX, "bb"),
3506 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, UINT_MAX, "cam"),
3507 TEGRA_IO_PAD(TEGRA_IO_PAD_COMP, 22, 0x1b8, 0x1bc, UINT_MAX, "comp"),
3508 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3509 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3510 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3511 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3512 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3513 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3514 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3515 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3516 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3517 TEGRA_IO_PAD(TEGRA_IO_PAD_HV, 6, 0x1c0, 0x1c4, UINT_MAX, "hv"),
3518 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3519 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3520 TEGRA_IO_PAD(TEGRA_IO_PAD_NAND, 13, 0x1b8, 0x1bc, UINT_MAX, "nand"),
3521 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3522 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3523 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3524 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x1c0, 0x1c4, UINT_MAX, "pex-cntrl"),
3525 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, UINT_MAX, "sdmmc1"),
3526 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, UINT_MAX, "sdmmc3"),
3527 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 3, 0x1c0, 0x1c4, UINT_MAX, "sdmmc4"),
3528 TEGRA_IO_PAD(TEGRA_IO_PAD_SYS_DDC, 26, 0x1c0, 0x1c4, UINT_MAX, "sys_ddc"),
3529 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, UINT_MAX, "uart"),
3530 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3531 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3532 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3533 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb_bias"),
3536 static const struct pinctrl_pin_desc tegra124_pin_descs[] = {
3537 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3538 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_BB, "bb"),
3539 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3540 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_COMP, "comp"),
3541 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3542 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3543 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3544 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3545 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3546 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3547 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3548 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3549 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3550 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HV, "hv"),
3551 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3552 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3553 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_NAND, "nand"),
3554 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3555 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3556 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3557 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3558 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3559 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3560 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3561 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SYS_DDC, "sys_ddc"),
3562 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3563 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3564 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3565 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3566 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb_bias"),
3569 static const struct tegra_pmc_soc tegra124_pmc_soc = {
3570 .supports_core_domain = false,
3571 .num_powergates = ARRAY_SIZE(tegra124_powergates),
3572 .powergates = tegra124_powergates,
3573 .num_cpu_powergates = ARRAY_SIZE(tegra124_cpu_powergates),
3574 .cpu_powergates = tegra124_cpu_powergates,
3575 .has_tsense_reset = true,
3576 .has_gpu_clamps = true,
3577 .needs_mbist_war = false,
3578 .has_impl_33v_pwr = false,
3579 .maybe_tz_only = false,
3580 .num_io_pads = ARRAY_SIZE(tegra124_io_pads),
3581 .io_pads = tegra124_io_pads,
3582 .num_pin_descs = ARRAY_SIZE(tegra124_pin_descs),
3583 .pin_descs = tegra124_pin_descs,
3584 .regs = &tegra20_pmc_regs,
3585 .init = tegra20_pmc_init,
3586 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3587 .powergate_set = tegra114_powergate_set,
3588 .reset_sources = tegra30_reset_sources,
3589 .num_reset_sources = ARRAY_SIZE(tegra30_reset_sources),
3590 .reset_levels = NULL,
3591 .num_reset_levels = 0,
3592 .pmc_clks_data = tegra_pmc_clks_data,
3593 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3594 .has_blink_output = true,
3595 .has_usb_sleepwalk = true,
3598 static const char * const tegra210_powergates[] = {
3599 [TEGRA_POWERGATE_CPU] = "crail",
3600 [TEGRA_POWERGATE_3D] = "3d",
3601 [TEGRA_POWERGATE_VENC] = "venc",
3602 [TEGRA_POWERGATE_PCIE] = "pcie",
3603 [TEGRA_POWERGATE_MPE] = "mpe",
3604 [TEGRA_POWERGATE_SATA] = "sata",
3605 [TEGRA_POWERGATE_CPU1] = "cpu1",
3606 [TEGRA_POWERGATE_CPU2] = "cpu2",
3607 [TEGRA_POWERGATE_CPU3] = "cpu3",
3608 [TEGRA_POWERGATE_CPU0] = "cpu0",
3609 [TEGRA_POWERGATE_C0NC] = "c0nc",
3610 [TEGRA_POWERGATE_SOR] = "sor",
3611 [TEGRA_POWERGATE_DIS] = "dis",
3612 [TEGRA_POWERGATE_DISB] = "disb",
3613 [TEGRA_POWERGATE_XUSBA] = "xusba",
3614 [TEGRA_POWERGATE_XUSBB] = "xusbb",
3615 [TEGRA_POWERGATE_XUSBC] = "xusbc",
3616 [TEGRA_POWERGATE_VIC] = "vic",
3617 [TEGRA_POWERGATE_IRAM] = "iram",
3618 [TEGRA_POWERGATE_NVDEC] = "nvdec",
3619 [TEGRA_POWERGATE_NVJPG] = "nvjpg",
3620 [TEGRA_POWERGATE_AUD] = "aud",
3621 [TEGRA_POWERGATE_DFD] = "dfd",
3622 [TEGRA_POWERGATE_VE2] = "ve2",
3625 static const u8 tegra210_cpu_powergates[] = {
3626 TEGRA_POWERGATE_CPU0,
3627 TEGRA_POWERGATE_CPU1,
3628 TEGRA_POWERGATE_CPU2,
3629 TEGRA_POWERGATE_CPU3,
3632 static const struct tegra_io_pad_soc tegra210_io_pads[] = {
3633 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x1b8, 0x1bc, 5, "audio"),
3634 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x1c0, 0x1c4, 18, "audio-hv"),
3635 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 4, 0x1c0, 0x1c4, 10, "cam"),
3636 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x1b8, 0x1bc, UINT_MAX, "csia"),
3637 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x1b8, 0x1bc, UINT_MAX, "csib"),
3638 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 10, 0x1c0, 0x1c4, UINT_MAX, "csic"),
3639 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 11, 0x1c0, 0x1c4, UINT_MAX, "csid"),
3640 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 12, 0x1c0, 0x1c4, UINT_MAX, "csie"),
3641 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 13, 0x1c0, 0x1c4, UINT_MAX, "csif"),
3642 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x1b8, 0x1bc, 19, "dbg"),
3643 TEGRA_IO_PAD(TEGRA_IO_PAD_DEBUG_NONAO, 26, 0x1b8, 0x1bc, UINT_MAX, "debug-nonao"),
3644 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC, 18, 0x1c0, 0x1c4, 20, "dmic"),
3645 TEGRA_IO_PAD(TEGRA_IO_PAD_DP, 19, 0x1c0, 0x1c4, UINT_MAX, "dp"),
3646 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x1b8, 0x1bc, UINT_MAX, "dsi"),
3647 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 7, 0x1c0, 0x1c4, UINT_MAX, "dsib"),
3648 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 8, 0x1c0, 0x1c4, UINT_MAX, "dsic"),
3649 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 9, 0x1c0, 0x1c4, UINT_MAX, "dsid"),
3650 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC, 3, 0x1c0, 0x1c4, UINT_MAX, "emmc"),
3651 TEGRA_IO_PAD(TEGRA_IO_PAD_EMMC2, 5, 0x1c0, 0x1c4, UINT_MAX, "emmc2"),
3652 TEGRA_IO_PAD(TEGRA_IO_PAD_GPIO, 27, 0x1b8, 0x1bc, 21, "gpio"),
3653 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI, 28, 0x1b8, 0x1bc, UINT_MAX, "hdmi"),
3654 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x1b8, 0x1bc, UINT_MAX, "hsic"),
3655 TEGRA_IO_PAD(TEGRA_IO_PAD_LVDS, 25, 0x1c0, 0x1c4, UINT_MAX, "lvds"),
3656 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x1b8, 0x1bc, UINT_MAX, "mipi-bias"),
3657 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_BIAS, 4, 0x1b8, 0x1bc, UINT_MAX, "pex-bias"),
3658 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 5, 0x1b8, 0x1bc, UINT_MAX, "pex-clk1"),
3659 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x1b8, 0x1bc, UINT_MAX, "pex-clk2"),
3660 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, UINT_MAX, UINT_MAX, UINT_MAX, 11, "pex-cntrl"),
3661 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1, 1, 0x1c0, 0x1c4, 12, "sdmmc1"),
3662 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3, 2, 0x1c0, 0x1c4, 13, "sdmmc3"),
3663 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 14, 0x1c0, 0x1c4, 22, "spi"),
3664 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI_HV, 15, 0x1c0, 0x1c4, 23, "spi-hv"),
3665 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x1b8, 0x1bc, 2, "uart"),
3666 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x1b8, 0x1bc, UINT_MAX, "usb0"),
3667 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x1b8, 0x1bc, UINT_MAX, "usb1"),
3668 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x1b8, 0x1bc, UINT_MAX, "usb2"),
3669 TEGRA_IO_PAD(TEGRA_IO_PAD_USB3, 18, 0x1b8, 0x1bc, UINT_MAX, "usb3"),
3670 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x1b8, 0x1bc, UINT_MAX, "usb-bias"),
3673 static const struct pinctrl_pin_desc tegra210_pin_descs[] = {
3674 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3675 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3676 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3677 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3678 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3679 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3680 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3681 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3682 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3683 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3684 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DEBUG_NONAO, "debug-nonao"),
3685 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC, "dmic"),
3686 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DP, "dp"),
3687 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3688 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3689 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3690 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3691 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC, "emmc"),
3692 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EMMC2, "emmc2"),
3693 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GPIO, "gpio"),
3694 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI, "hdmi"),
3695 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3696 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_LVDS, "lvds"),
3697 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3698 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_BIAS, "pex-bias"),
3699 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3700 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3701 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3702 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1, "sdmmc1"),
3703 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3, "sdmmc3"),
3704 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3705 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI_HV, "spi-hv"),
3706 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3707 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3708 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3709 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3710 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB3, "usb3"),
3711 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3714 static const char * const tegra210_reset_sources[] = {
3723 static const struct tegra_wake_event tegra210_wake_events[] = {
3724 TEGRA_WAKE_IRQ("rtc", 16, 2),
3725 TEGRA_WAKE_IRQ("pmu", 51, 86),
3728 static const struct tegra_pmc_soc tegra210_pmc_soc = {
3729 .supports_core_domain = false,
3730 .num_powergates = ARRAY_SIZE(tegra210_powergates),
3731 .powergates = tegra210_powergates,
3732 .num_cpu_powergates = ARRAY_SIZE(tegra210_cpu_powergates),
3733 .cpu_powergates = tegra210_cpu_powergates,
3734 .has_tsense_reset = true,
3735 .has_gpu_clamps = true,
3736 .needs_mbist_war = true,
3737 .has_impl_33v_pwr = false,
3738 .maybe_tz_only = true,
3739 .num_io_pads = ARRAY_SIZE(tegra210_io_pads),
3740 .io_pads = tegra210_io_pads,
3741 .num_pin_descs = ARRAY_SIZE(tegra210_pin_descs),
3742 .pin_descs = tegra210_pin_descs,
3743 .regs = &tegra20_pmc_regs,
3744 .init = tegra20_pmc_init,
3745 .setup_irq_polarity = tegra20_pmc_setup_irq_polarity,
3746 .powergate_set = tegra114_powergate_set,
3747 .irq_set_wake = tegra210_pmc_irq_set_wake,
3748 .irq_set_type = tegra210_pmc_irq_set_type,
3749 .reset_sources = tegra210_reset_sources,
3750 .num_reset_sources = ARRAY_SIZE(tegra210_reset_sources),
3751 .reset_levels = NULL,
3752 .num_reset_levels = 0,
3753 .num_wake_events = ARRAY_SIZE(tegra210_wake_events),
3754 .wake_events = tegra210_wake_events,
3755 .pmc_clks_data = tegra_pmc_clks_data,
3756 .num_pmc_clks = ARRAY_SIZE(tegra_pmc_clks_data),
3757 .has_blink_output = true,
3758 .has_usb_sleepwalk = true,
3761 static const struct tegra_io_pad_soc tegra186_io_pads[] = {
3762 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3763 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3764 TEGRA_IO_PAD(TEGRA_IO_PAD_DSI, 2, 0x74, 0x78, UINT_MAX, "dsi"),
3765 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3766 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3767 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3768 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3769 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3770 TEGRA_IO_PAD(TEGRA_IO_PAD_USB0, 9, 0x74, 0x78, UINT_MAX, "usb0"),
3771 TEGRA_IO_PAD(TEGRA_IO_PAD_USB1, 10, 0x74, 0x78, UINT_MAX, "usb1"),
3772 TEGRA_IO_PAD(TEGRA_IO_PAD_USB2, 11, 0x74, 0x78, UINT_MAX, "usb2"),
3773 TEGRA_IO_PAD(TEGRA_IO_PAD_USB_BIAS, 12, 0x74, 0x78, UINT_MAX, "usb-bias"),
3774 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3775 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3776 TEGRA_IO_PAD(TEGRA_IO_PAD_HSIC, 19, 0x74, 0x78, UINT_MAX, "hsic"),
3777 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
3778 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3779 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3780 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3781 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC2_HV, 2, 0x7c, 0x80, 5, "sdmmc2-hv"),
3782 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
3783 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
3784 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIB, 8, 0x7c, 0x80, UINT_MAX, "dsib"),
3785 TEGRA_IO_PAD(TEGRA_IO_PAD_DSIC, 9, 0x7c, 0x80, UINT_MAX, "dsic"),
3786 TEGRA_IO_PAD(TEGRA_IO_PAD_DSID, 10, 0x7c, 0x80, UINT_MAX, "dsid"),
3787 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
3788 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
3789 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
3790 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
3791 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
3792 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
3793 TEGRA_IO_PAD(TEGRA_IO_PAD_DMIC_HV, 20, 0x7c, 0x80, 2, "dmic-hv"),
3794 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
3795 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
3796 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
3797 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
3798 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
3799 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
3802 static const struct pinctrl_pin_desc tegra186_pin_descs[] = {
3803 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
3804 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
3805 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSI, "dsi"),
3806 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
3807 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
3808 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
3809 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
3810 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
3811 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB0, "usb0"),
3812 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB1, "usb1"),
3813 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB2, "usb2"),
3814 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_USB_BIAS, "usb-bias"),
3815 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
3816 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
3817 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HSIC, "hsic"),
3818 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
3819 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
3820 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
3821 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
3822 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC2_HV, "sdmmc2-hv"),
3823 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
3824 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
3825 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIB, "dsib"),
3826 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSIC, "dsic"),
3827 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DSID, "dsid"),
3828 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
3829 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
3830 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
3831 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
3832 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
3833 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
3834 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DMIC_HV, "dmic-hv"),
3835 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
3836 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
3837 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
3838 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
3839 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
3840 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
3843 static const struct tegra_pmc_regs tegra186_pmc_regs = {
3846 .rst_source_shift = 0x2,
3847 .rst_source_mask = 0x3c,
3848 .rst_level_shift = 0x0,
3849 .rst_level_mask = 0x3,
3852 static void tegra186_pmc_init(struct tegra_pmc *pmc)
3854 pmc->syscore.suspend = tegra186_pmc_wake_syscore_suspend;
3855 pmc->syscore.resume = tegra186_pmc_wake_syscore_resume;
3857 register_syscore_ops(&pmc->syscore);
3860 static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc,
3861 struct device_node *np,
3864 struct resource regs;
3869 index = of_property_match_string(np, "reg-names", "wake");
3871 dev_err(pmc->dev, "failed to find PMC wake registers\n");
3875 of_address_to_resource(np, index, ®s);
3877 wake = ioremap(regs.start, resource_size(®s));
3879 dev_err(pmc->dev, "failed to map PMC wake registers\n");
3883 value = readl(wake + WAKE_AOWAKE_CTRL);
3886 value |= WAKE_AOWAKE_CTRL_INTR_POLARITY;
3888 value &= ~WAKE_AOWAKE_CTRL_INTR_POLARITY;
3890 writel(value, wake + WAKE_AOWAKE_CTRL);
3895 static const char * const tegra186_reset_sources[] = {
3913 static const char * const tegra186_reset_levels[] = {
3914 "L0", "L1", "L2", "WARM"
3917 static const struct tegra_wake_event tegra186_wake_events[] = {
3918 TEGRA_WAKE_IRQ("pmu", 24, 209),
3919 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA186_AON_GPIO(FF, 0)),
3920 TEGRA_WAKE_IRQ("rtc", 73, 10),
3923 static const struct tegra_pmc_soc tegra186_pmc_soc = {
3924 .supports_core_domain = false,
3925 .num_powergates = 0,
3927 .num_cpu_powergates = 0,
3928 .cpu_powergates = NULL,
3929 .has_tsense_reset = false,
3930 .has_gpu_clamps = false,
3931 .needs_mbist_war = false,
3932 .has_impl_33v_pwr = true,
3933 .maybe_tz_only = false,
3934 .num_io_pads = ARRAY_SIZE(tegra186_io_pads),
3935 .io_pads = tegra186_io_pads,
3936 .num_pin_descs = ARRAY_SIZE(tegra186_pin_descs),
3937 .pin_descs = tegra186_pin_descs,
3938 .regs = &tegra186_pmc_regs,
3939 .init = tegra186_pmc_init,
3940 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
3941 .irq_set_wake = tegra186_pmc_irq_set_wake,
3942 .irq_set_type = tegra186_pmc_irq_set_type,
3943 .reset_sources = tegra186_reset_sources,
3944 .num_reset_sources = ARRAY_SIZE(tegra186_reset_sources),
3945 .reset_levels = tegra186_reset_levels,
3946 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
3947 .num_wake_events = ARRAY_SIZE(tegra186_wake_events),
3948 .wake_events = tegra186_wake_events,
3949 .max_wake_events = 96,
3950 .max_wake_vectors = 3,
3951 .pmc_clks_data = NULL,
3953 .has_blink_output = false,
3954 .has_usb_sleepwalk = false,
3957 static const struct tegra_io_pad_soc tegra194_io_pads[] = {
3958 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0x74, 0x78, UINT_MAX, "csia"),
3959 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0x74, 0x78, UINT_MAX, "csib"),
3960 TEGRA_IO_PAD(TEGRA_IO_PAD_MIPI_BIAS, 3, 0x74, 0x78, UINT_MAX, "mipi-bias"),
3961 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_BIAS, 4, 0x74, 0x78, UINT_MAX, "pex-clk-bias"),
3962 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK3, 5, 0x74, 0x78, UINT_MAX, "pex-clk3"),
3963 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK2, 6, 0x74, 0x78, UINT_MAX, "pex-clk2"),
3964 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK1, 7, 0x74, 0x78, UINT_MAX, "pex-clk1"),
3965 TEGRA_IO_PAD(TEGRA_IO_PAD_EQOS, 8, 0x74, 0x78, UINT_MAX, "eqos"),
3966 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2_BIAS, 9, 0x74, 0x78, UINT_MAX, "pex-clk-2-bias"),
3967 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CLK_2, 10, 0x74, 0x78, UINT_MAX, "pex-clk-2"),
3968 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP3, 11, 0x74, 0x78, UINT_MAX, "dap3"),
3969 TEGRA_IO_PAD(TEGRA_IO_PAD_DAP5, 12, 0x74, 0x78, UINT_MAX, "dap5"),
3970 TEGRA_IO_PAD(TEGRA_IO_PAD_UART, 14, 0x74, 0x78, UINT_MAX, "uart"),
3971 TEGRA_IO_PAD(TEGRA_IO_PAD_PWR_CTL, 15, 0x74, 0x78, UINT_MAX, "pwr-ctl"),
3972 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO53, 16, 0x74, 0x78, UINT_MAX, "soc-gpio53"),
3973 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO, 17, 0x74, 0x78, UINT_MAX, "audio"),
3974 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM2, 18, 0x74, 0x78, UINT_MAX, "gp-pwm2"),
3975 TEGRA_IO_PAD(TEGRA_IO_PAD_GP_PWM3, 19, 0x74, 0x78, UINT_MAX, "gp-pwm3"),
3976 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO12, 20, 0x74, 0x78, UINT_MAX, "soc-gpio12"),
3977 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO13, 21, 0x74, 0x78, UINT_MAX, "soc-gpio13"),
3978 TEGRA_IO_PAD(TEGRA_IO_PAD_SOC_GPIO10, 22, 0x74, 0x78, UINT_MAX, "soc-gpio10"),
3979 TEGRA_IO_PAD(TEGRA_IO_PAD_UART4, 23, 0x74, 0x78, UINT_MAX, "uart4"),
3980 TEGRA_IO_PAD(TEGRA_IO_PAD_UART5, 24, 0x74, 0x78, UINT_MAX, "uart5"),
3981 TEGRA_IO_PAD(TEGRA_IO_PAD_DBG, 25, 0x74, 0x78, UINT_MAX, "dbg"),
3982 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP3, 26, 0x74, 0x78, UINT_MAX, "hdmi-dp3"),
3983 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP2, 27, 0x74, 0x78, UINT_MAX, "hdmi-dp2"),
3984 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 28, 0x74, 0x78, UINT_MAX, "hdmi-dp0"),
3985 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP1, 29, 0x74, 0x78, UINT_MAX, "hdmi-dp1"),
3986 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CNTRL, 0, 0x7c, 0x80, UINT_MAX, "pex-cntrl"),
3987 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_CTL2, 1, 0x7c, 0x80, UINT_MAX, "pex-ctl2"),
3988 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L0_RST, 2, 0x7c, 0x80, UINT_MAX, "pex-l0-rst"),
3989 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L1_RST, 3, 0x7c, 0x80, UINT_MAX, "pex-l1-rst"),
3990 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC4, 4, 0x7c, 0x80, UINT_MAX, "sdmmc4"),
3991 TEGRA_IO_PAD(TEGRA_IO_PAD_PEX_L5_RST, 5, 0x7c, 0x80, UINT_MAX, "pex-l5-rst"),
3992 TEGRA_IO_PAD(TEGRA_IO_PAD_CAM, 6, 0x7c, 0x80, UINT_MAX, "cam"),
3993 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 11, 0x7c, 0x80, UINT_MAX, "csic"),
3994 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 12, 0x7c, 0x80, UINT_MAX, "csid"),
3995 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 13, 0x7c, 0x80, UINT_MAX, "csie"),
3996 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 14, 0x7c, 0x80, UINT_MAX, "csif"),
3997 TEGRA_IO_PAD(TEGRA_IO_PAD_SPI, 15, 0x7c, 0x80, UINT_MAX, "spi"),
3998 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 17, 0x7c, 0x80, UINT_MAX, "ufs"),
3999 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 18, 0x7c, 0x80, UINT_MAX, "csig"),
4000 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 19, 0x7c, 0x80, UINT_MAX, "csih"),
4001 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 21, 0x7c, 0x80, UINT_MAX, "edp"),
4002 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 23, 0x7c, 0x80, 4, "sdmmc1-hv"),
4003 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, 24, 0x7c, 0x80, 6, "sdmmc3-hv"),
4004 TEGRA_IO_PAD(TEGRA_IO_PAD_CONN, 28, 0x7c, 0x80, UINT_MAX, "conn"),
4005 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, 29, 0x7c, 0x80, 1, "audio-hv"),
4006 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4009 static const struct pinctrl_pin_desc tegra194_pin_descs[] = {
4010 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
4011 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
4012 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_MIPI_BIAS, "mipi-bias"),
4013 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_BIAS, "pex-clk-bias"),
4014 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK3, "pex-clk3"),
4015 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK2, "pex-clk2"),
4016 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK1, "pex-clk1"),
4017 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EQOS, "eqos"),
4018 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2_BIAS, "pex-clk-2-bias"),
4019 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CLK_2, "pex-clk-2"),
4020 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP3, "dap3"),
4021 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DAP5, "dap5"),
4022 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART, "uart"),
4023 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PWR_CTL, "pwr-ctl"),
4024 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO53, "soc-gpio53"),
4025 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO, "audio"),
4026 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM2, "gp-pwm2"),
4027 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_GP_PWM3, "gp-pwm3"),
4028 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO12, "soc-gpio12"),
4029 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO13, "soc-gpio13"),
4030 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SOC_GPIO10, "soc-gpio10"),
4031 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART4, "uart4"),
4032 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UART5, "uart5"),
4033 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_DBG, "dbg"),
4034 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP3, "hdmi-dp3"),
4035 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP2, "hdmi-dp2"),
4036 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4037 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP1, "hdmi-dp1"),
4038 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CNTRL, "pex-cntrl"),
4039 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_CTL2, "pex-ctl2"),
4040 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L0_RST, "pex-l0-rst"),
4041 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L1_RST, "pex-l1-rst"),
4042 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC4, "sdmmc4"),
4043 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_PEX_L5_RST, "pex-l5-rst"),
4044 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CAM, "cam"),
4045 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4046 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4047 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4048 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4049 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SPI, "spi"),
4050 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4051 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4052 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4053 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4054 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4055 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4056 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CONN, "conn"),
4057 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4058 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4061 static const struct tegra_pmc_regs tegra194_pmc_regs = {
4064 .rst_source_shift = 0x2,
4065 .rst_source_mask = 0x7c,
4066 .rst_level_shift = 0x0,
4067 .rst_level_mask = 0x3,
4070 static const char * const tegra194_reset_sources[] = {
4094 static const struct tegra_wake_event tegra194_wake_events[] = {
4095 TEGRA_WAKE_IRQ("pmu", 24, 209),
4096 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA194_AON_GPIO(EE, 4)),
4097 TEGRA_WAKE_IRQ("rtc", 73, 10),
4098 TEGRA_WAKE_SIMPLE("usb3-port-0", 76),
4099 TEGRA_WAKE_SIMPLE("usb3-port-1", 77),
4100 TEGRA_WAKE_SIMPLE("usb3-port-2-3", 78),
4101 TEGRA_WAKE_SIMPLE("usb2-port-0", 79),
4102 TEGRA_WAKE_SIMPLE("usb2-port-1", 80),
4103 TEGRA_WAKE_SIMPLE("usb2-port-2", 81),
4104 TEGRA_WAKE_SIMPLE("usb2-port-3", 82),
4107 static const struct tegra_pmc_soc tegra194_pmc_soc = {
4108 .supports_core_domain = false,
4109 .num_powergates = 0,
4111 .num_cpu_powergates = 0,
4112 .cpu_powergates = NULL,
4113 .has_tsense_reset = false,
4114 .has_gpu_clamps = false,
4115 .needs_mbist_war = false,
4116 .has_impl_33v_pwr = true,
4117 .maybe_tz_only = false,
4118 .num_io_pads = ARRAY_SIZE(tegra194_io_pads),
4119 .io_pads = tegra194_io_pads,
4120 .num_pin_descs = ARRAY_SIZE(tegra194_pin_descs),
4121 .pin_descs = tegra194_pin_descs,
4122 .regs = &tegra194_pmc_regs,
4123 .init = tegra186_pmc_init,
4124 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4125 .irq_set_wake = tegra186_pmc_irq_set_wake,
4126 .irq_set_type = tegra186_pmc_irq_set_type,
4127 .reset_sources = tegra194_reset_sources,
4128 .num_reset_sources = ARRAY_SIZE(tegra194_reset_sources),
4129 .reset_levels = tegra186_reset_levels,
4130 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4131 .num_wake_events = ARRAY_SIZE(tegra194_wake_events),
4132 .wake_events = tegra194_wake_events,
4133 .max_wake_events = 96,
4134 .max_wake_vectors = 3,
4135 .pmc_clks_data = NULL,
4137 .has_blink_output = false,
4138 .has_usb_sleepwalk = false,
4141 static const struct tegra_io_pad_soc tegra234_io_pads[] = {
4142 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIA, 0, 0xe0c0, 0xe0c4, UINT_MAX, "csia"),
4143 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIB, 1, 0xe0c0, 0xe0c4, UINT_MAX, "csib"),
4144 TEGRA_IO_PAD(TEGRA_IO_PAD_HDMI_DP0, 0, 0xe0d0, 0xe0d4, UINT_MAX, "hdmi-dp0"),
4145 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIC, 2, 0xe0c0, 0xe0c4, UINT_MAX, "csic"),
4146 TEGRA_IO_PAD(TEGRA_IO_PAD_CSID, 3, 0xe0c0, 0xe0c4, UINT_MAX, "csid"),
4147 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIE, 4, 0xe0c0, 0xe0c4, UINT_MAX, "csie"),
4148 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIF, 5, 0xe0c0, 0xe0c4, UINT_MAX, "csif"),
4149 TEGRA_IO_PAD(TEGRA_IO_PAD_UFS, 0, 0xe064, 0xe068, UINT_MAX, "ufs"),
4150 TEGRA_IO_PAD(TEGRA_IO_PAD_EDP, 1, 0xe05c, 0xe060, UINT_MAX, "edp"),
4151 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC1_HV, 0, 0xe054, 0xe058, 4, "sdmmc1-hv"),
4152 TEGRA_IO_PAD(TEGRA_IO_PAD_SDMMC3_HV, UINT_MAX, UINT_MAX, UINT_MAX, 6, "sdmmc3-hv"),
4153 TEGRA_IO_PAD(TEGRA_IO_PAD_AUDIO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 1, "audio-hv"),
4154 TEGRA_IO_PAD(TEGRA_IO_PAD_AO_HV, UINT_MAX, UINT_MAX, UINT_MAX, 0, "ao-hv"),
4155 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIG, 6, 0xe0c0, 0xe0c4, UINT_MAX, "csig"),
4156 TEGRA_IO_PAD(TEGRA_IO_PAD_CSIH, 7, 0xe0c0, 0xe0c4, UINT_MAX, "csih"),
4159 static const struct pinctrl_pin_desc tegra234_pin_descs[] = {
4160 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIA, "csia"),
4161 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIB, "csib"),
4162 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_HDMI_DP0, "hdmi-dp0"),
4163 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIC, "csic"),
4164 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSID, "csid"),
4165 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIE, "csie"),
4166 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIF, "csif"),
4167 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_UFS, "ufs"),
4168 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_EDP, "edp"),
4169 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC1_HV, "sdmmc1-hv"),
4170 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_SDMMC3_HV, "sdmmc3-hv"),
4171 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AUDIO_HV, "audio-hv"),
4172 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_AO_HV, "ao-hv"),
4173 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIG, "csig"),
4174 TEGRA_IO_PIN_DESC(TEGRA_IO_PAD_CSIH, "csih"),
4177 static const struct tegra_pmc_regs tegra234_pmc_regs = {
4180 .rst_source_shift = 0x2,
4181 .rst_source_mask = 0xfc,
4182 .rst_level_shift = 0x0,
4183 .rst_level_mask = 0x3,
4186 static const char * const tegra234_reset_sources[] = {
4187 "SYS_RESET_N", /* 0x0 */
4211 "CSITE_SW", /* 0x18 */
4219 "FSI_R52C0WDT", /* 0x20 */
4224 "FSI_VMON", /* 0x25 */
4227 static const struct tegra_wake_event tegra234_wake_events[] = {
4228 TEGRA_WAKE_GPIO("power", 29, 1, TEGRA234_AON_GPIO(EE, 4)),
4229 TEGRA_WAKE_IRQ("rtc", 73, 10),
4232 static const struct tegra_pmc_soc tegra234_pmc_soc = {
4233 .supports_core_domain = false,
4234 .num_powergates = 0,
4236 .num_cpu_powergates = 0,
4237 .cpu_powergates = NULL,
4238 .has_tsense_reset = false,
4239 .has_gpu_clamps = false,
4240 .needs_mbist_war = false,
4241 .has_impl_33v_pwr = true,
4242 .maybe_tz_only = false,
4243 .num_io_pads = ARRAY_SIZE(tegra234_io_pads),
4244 .io_pads = tegra234_io_pads,
4245 .num_pin_descs = ARRAY_SIZE(tegra234_pin_descs),
4246 .pin_descs = tegra234_pin_descs,
4247 .regs = &tegra234_pmc_regs,
4248 .init = tegra186_pmc_init,
4249 .setup_irq_polarity = tegra186_pmc_setup_irq_polarity,
4250 .irq_set_wake = tegra186_pmc_irq_set_wake,
4251 .irq_set_type = tegra186_pmc_irq_set_type,
4252 .reset_sources = tegra234_reset_sources,
4253 .num_reset_sources = ARRAY_SIZE(tegra234_reset_sources),
4254 .reset_levels = tegra186_reset_levels,
4255 .num_reset_levels = ARRAY_SIZE(tegra186_reset_levels),
4256 .num_wake_events = ARRAY_SIZE(tegra234_wake_events),
4257 .wake_events = tegra234_wake_events,
4258 .max_wake_events = 96,
4259 .max_wake_vectors = 3,
4260 .pmc_clks_data = NULL,
4262 .has_blink_output = false,
4265 static const struct of_device_id tegra_pmc_match[] = {
4266 { .compatible = "nvidia,tegra234-pmc", .data = &tegra234_pmc_soc },
4267 { .compatible = "nvidia,tegra194-pmc", .data = &tegra194_pmc_soc },
4268 { .compatible = "nvidia,tegra186-pmc", .data = &tegra186_pmc_soc },
4269 { .compatible = "nvidia,tegra210-pmc", .data = &tegra210_pmc_soc },
4270 { .compatible = "nvidia,tegra132-pmc", .data = &tegra124_pmc_soc },
4271 { .compatible = "nvidia,tegra124-pmc", .data = &tegra124_pmc_soc },
4272 { .compatible = "nvidia,tegra114-pmc", .data = &tegra114_pmc_soc },
4273 { .compatible = "nvidia,tegra30-pmc", .data = &tegra30_pmc_soc },
4274 { .compatible = "nvidia,tegra20-pmc", .data = &tegra20_pmc_soc },
4278 static void tegra_pmc_sync_state(struct device *dev)
4283 * Newer device-trees have power domains, but we need to prepare all
4284 * device drivers with runtime PM and OPP support first, otherwise
4285 * state syncing is unsafe.
4287 if (!pmc->soc->supports_core_domain)
4291 * Older device-trees don't have core PD, and thus, there are
4292 * no dependencies that will block the state syncing. We shouldn't
4293 * mark the domain as synced in this case.
4295 if (!pmc->core_domain_registered)
4298 pmc->core_domain_state_synced = true;
4300 /* this is a no-op if core regulator isn't used */
4301 mutex_lock(&pmc->powergates_lock);
4302 err = dev_pm_opp_sync_regulators(dev);
4303 mutex_unlock(&pmc->powergates_lock);
4306 dev_err(dev, "failed to sync regulators: %d\n", err);
4309 static struct platform_driver tegra_pmc_driver = {
4311 .name = "tegra-pmc",
4312 .suppress_bind_attrs = true,
4313 .of_match_table = tegra_pmc_match,
4314 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
4315 .pm = &tegra_pmc_pm_ops,
4317 .sync_state = tegra_pmc_sync_state,
4319 .probe = tegra_pmc_probe,
4321 builtin_platform_driver(tegra_pmc_driver);
4323 static bool __init tegra_pmc_detect_tz_only(struct tegra_pmc *pmc)
4327 saved = readl(pmc->base + pmc->soc->regs->scratch0);
4328 value = saved ^ 0xffffffff;
4330 if (value == 0xffffffff)
4333 /* write pattern and read it back */
4334 writel(value, pmc->base + pmc->soc->regs->scratch0);
4335 value = readl(pmc->base + pmc->soc->regs->scratch0);
4337 /* if we read all-zeroes, access is restricted to TZ only */
4339 pr_info("access to PMC is restricted to TZ\n");
4343 /* restore original value */
4344 writel(saved, pmc->base + pmc->soc->regs->scratch0);
4350 * Early initialization to allow access to registers in the very early boot
4353 static int __init tegra_pmc_early_init(void)
4355 const struct of_device_id *match;
4356 struct device_node *np;
4357 struct resource regs;
4361 mutex_init(&pmc->powergates_lock);
4363 np = of_find_matching_node_and_match(NULL, tegra_pmc_match, &match);
4366 * Fall back to legacy initialization for 32-bit ARM only. All
4367 * 64-bit ARM device tree files for Tegra are required to have
4370 * This is for backwards-compatibility with old device trees
4371 * that didn't contain a PMC node. Note that in this case the
4372 * SoC data can't be matched and therefore powergating is
4375 if (IS_ENABLED(CONFIG_ARM) && soc_is_tegra()) {
4376 pr_warn("DT node not found, powergating disabled\n");
4378 regs.start = 0x7000e400;
4379 regs.end = 0x7000e7ff;
4380 regs.flags = IORESOURCE_MEM;
4382 pr_warn("Using memory region %pR\n", ®s);
4385 * At this point we're not running on Tegra, so play
4386 * nice with multi-platform kernels.
4392 * Extract information from the device tree if we've found a
4395 if (of_address_to_resource(np, 0, ®s) < 0) {
4396 pr_err("failed to get PMC registers\n");
4402 pmc->base = ioremap(regs.start, resource_size(®s));
4404 pr_err("failed to map PMC registers\n");
4409 if (of_device_is_available(np)) {
4410 pmc->soc = match->data;
4412 if (pmc->soc->maybe_tz_only)
4413 pmc->tz_only = tegra_pmc_detect_tz_only(pmc);
4415 /* Create a bitmap of the available and valid partitions */
4416 for (i = 0; i < pmc->soc->num_powergates; i++)
4417 if (pmc->soc->powergates[i])
4418 set_bit(i, pmc->powergates_available);
4421 * Invert the interrupt polarity if a PMC device tree node
4422 * exists and contains the nvidia,invert-interrupt property.
4424 invert = of_property_read_bool(np, "nvidia,invert-interrupt");
4426 pmc->soc->setup_irq_polarity(pmc, np, invert);
4433 early_initcall(tegra_pmc_early_init);