diff options
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/amlogic/meson-gx-socinfo.c | 4 | ||||
| -rw-r--r-- | drivers/soc/renesas/renesas-soc.c | 3 | ||||
| -rw-r--r-- | drivers/soc/tegra/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/soc/tegra/Makefile | 1 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra.c | 4 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra20.c | 13 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra30.c | 24 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse.h | 4 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/tegra-apbmisc.c | 11 | ||||
| -rw-r--r-- | drivers/soc/tegra/pmc-tegra186.c | 169 | ||||
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 304 |
11 files changed, 303 insertions, 239 deletions
diff --git a/drivers/soc/amlogic/meson-gx-socinfo.c b/drivers/soc/amlogic/meson-gx-socinfo.c index 89f4cf507be6..f2d8c3c53ea4 100644 --- a/drivers/soc/amlogic/meson-gx-socinfo.c +++ b/drivers/soc/amlogic/meson-gx-socinfo.c @@ -20,8 +20,8 @@ #define AO_SEC_SOCINFO_OFFSET AO_SEC_SD_CFG8 #define SOCINFO_MAJOR GENMASK(31, 24) -#define SOCINFO_MINOR GENMASK(23, 16) -#define SOCINFO_PACK GENMASK(15, 8) +#define SOCINFO_PACK GENMASK(23, 16) +#define SOCINFO_MINOR GENMASK(15, 8) #define SOCINFO_MISC GENMASK(7, 0) static const struct meson_gx_soc_id { diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c index 9f4ee2567c72..926b7fd6db2d 100644 --- a/drivers/soc/renesas/renesas-soc.c +++ b/drivers/soc/renesas/renesas-soc.c @@ -250,6 +250,9 @@ static int __init renesas_soc_init(void) if (chipid) { product = readl(chipid); iounmap(chipid); + /* R-Car M3-W ES1.1 incorrectly identifies as ES2.0 */ + if ((product & 0x7fff) == 0x5210) + product ^= 0x11; if (soc->id && ((product >> 8) & 0xff) != soc->id) { pr_warn("SoC mismatch (product = 0x%x)\n", product); return -ENODEV; diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig index e9e277178c94..89ebe22a3e27 100644 --- a/drivers/soc/tegra/Kconfig +++ b/drivers/soc/tegra/Kconfig @@ -95,7 +95,7 @@ config ARCH_TEGRA_186_SOC select TEGRA_BPMP select TEGRA_HSP_MBOX select TEGRA_IVC - select SOC_TEGRA_PMC_TEGRA186 + select SOC_TEGRA_PMC help Enable support for the NVIDIA Tegar186 SoC. The Tegra186 features a combination of Denver and Cortex-A57 CPU cores and a GPU based on @@ -118,9 +118,6 @@ config SOC_TEGRA_FLOWCTRL config SOC_TEGRA_PMC bool -config SOC_TEGRA_PMC_TEGRA186 - bool - config SOC_TEGRA_POWERGATE_BPMP def_bool y depends on PM_GENERIC_DOMAINS diff --git a/drivers/soc/tegra/Makefile b/drivers/soc/tegra/Makefile index 482e108d28aa..902759fe5f4d 100644 --- a/drivers/soc/tegra/Makefile +++ b/drivers/soc/tegra/Makefile @@ -4,5 +4,4 @@ obj-y += fuse/ obj-y += common.o obj-$(CONFIG_SOC_TEGRA_FLOWCTRL) += flowctrl.o obj-$(CONFIG_SOC_TEGRA_PMC) += pmc.o -obj-$(CONFIG_SOC_TEGRA_PMC_TEGRA186) += pmc-tegra186.o obj-$(CONFIG_SOC_TEGRA_POWERGATE_BPMP) += powergate-bpmp.o diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c index b7c552e3133c..a33ee8ef8b6b 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra.c +++ b/drivers/soc/tegra/fuse/fuse-tegra.c @@ -103,6 +103,9 @@ static struct tegra_fuse *fuse = &(struct tegra_fuse) { }; static const struct of_device_id tegra_fuse_match[] = { +#ifdef CONFIG_ARCH_TEGRA_186_SOC + { .compatible = "nvidia,tegra186-efuse", .data = &tegra186_fuse_soc }, +#endif #ifdef CONFIG_ARCH_TEGRA_210_SOC { .compatible = "nvidia,tegra210-efuse", .data = &tegra210_fuse_soc }, #endif @@ -132,6 +135,7 @@ static int tegra_fuse_probe(struct platform_device *pdev) /* take over the memory region from the early initialization */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + fuse->phys = res->start; fuse->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(fuse->base)) return PTR_ERR(fuse->base); diff --git a/drivers/soc/tegra/fuse/fuse-tegra20.c b/drivers/soc/tegra/fuse/fuse-tegra20.c index 294413a969a0..49ff017f3ded 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra20.c +++ b/drivers/soc/tegra/fuse/fuse-tegra20.c @@ -59,7 +59,7 @@ static u32 tegra20_fuse_read(struct tegra_fuse *fuse, unsigned int offset) mutex_lock(&fuse->apbdma.lock); - fuse->apbdma.config.src_addr = fuse->apbdma.phys + FUSE_BEGIN + offset; + fuse->apbdma.config.src_addr = fuse->phys + FUSE_BEGIN + offset; err = dmaengine_slave_config(fuse->apbdma.chan, &fuse->apbdma.config); if (err) @@ -96,6 +96,13 @@ out: return value; } +static bool dma_filter(struct dma_chan *chan, void *filter_param) +{ + struct device_node *np = chan->device->dev->of_node; + + return of_device_is_compatible(np, "nvidia,tegra20-apbdma"); +} + static int tegra20_fuse_probe(struct tegra_fuse *fuse) { dma_cap_mask_t mask; @@ -103,7 +110,7 @@ static int tegra20_fuse_probe(struct tegra_fuse *fuse) dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - fuse->apbdma.chan = dma_request_channel(mask, NULL, NULL); + fuse->apbdma.chan = __dma_request_channel(&mask, dma_filter, NULL); if (!fuse->apbdma.chan) return -EPROBE_DEFER; @@ -119,6 +126,8 @@ static int tegra20_fuse_probe(struct tegra_fuse *fuse) fuse->apbdma.config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; fuse->apbdma.config.src_maxburst = 1; fuse->apbdma.config.dst_maxburst = 1; + fuse->apbdma.config.direction = DMA_DEV_TO_MEM; + fuse->apbdma.config.device_fc = false; init_completion(&fuse->apbdma.wait); mutex_init(&fuse->apbdma.lock); diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c index 882607bcaa6c..257e254c6137 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra30.c +++ b/drivers/soc/tegra/fuse/fuse-tegra30.c @@ -46,9 +46,13 @@ defined(CONFIG_ARCH_TEGRA_114_SOC) || \ defined(CONFIG_ARCH_TEGRA_124_SOC) || \ defined(CONFIG_ARCH_TEGRA_132_SOC) || \ - defined(CONFIG_ARCH_TEGRA_210_SOC) + defined(CONFIG_ARCH_TEGRA_210_SOC) || \ + defined(CONFIG_ARCH_TEGRA_186_SOC) static u32 tegra30_fuse_read_early(struct tegra_fuse *fuse, unsigned int offset) { + if (WARN_ON(!fuse->base)) + return 0; + return readl_relaxed(fuse->base + FUSE_BEGIN + offset); } @@ -98,7 +102,10 @@ static void __init tegra30_fuse_init(struct tegra_fuse *fuse) fuse->read = tegra30_fuse_read; tegra_init_revision(); - fuse->soc->speedo_init(&tegra_sku_info); + + if (fuse->soc->speedo_init) + fuse->soc->speedo_init(&tegra_sku_info); + tegra30_fuse_add_randomness(); } #endif @@ -158,3 +165,16 @@ const struct tegra_fuse_soc tegra210_fuse_soc = { .info = &tegra210_fuse_info, }; #endif + +#if defined(CONFIG_ARCH_TEGRA_186_SOC) +static const struct tegra_fuse_info tegra186_fuse_info = { + .read = tegra30_fuse_read, + .size = 0x300, + .spare = 0x280, +}; + +const struct tegra_fuse_soc tegra186_fuse_soc = { + .init = tegra30_fuse_init, + .info = &tegra186_fuse_info, +}; +#endif diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h index 10c2076d5089..f355b9d54915 100644 --- a/drivers/soc/tegra/fuse/fuse.h +++ b/drivers/soc/tegra/fuse/fuse.h @@ -105,4 +105,8 @@ extern const struct tegra_fuse_soc tegra124_fuse_soc; extern const struct tegra_fuse_soc tegra210_fuse_soc; #endif +#ifdef CONFIG_ARCH_TEGRA_186_SOC +extern const struct tegra_fuse_soc tegra186_fuse_soc; +#endif + #endif diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c index 5b18f6ffa45c..e5a4d8f98b10 100644 --- a/drivers/soc/tegra/fuse/tegra-apbmisc.c +++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c @@ -39,16 +39,16 @@ static bool long_ram_code; u32 tegra_read_chipid(void) { - return readl_relaxed(apbmisc_base + 4); -} - -u8 tegra_get_chip_id(void) -{ if (!apbmisc_base) { WARN(1, "Tegra Chip ID not yet available\n"); return 0; } + return readl_relaxed(apbmisc_base + 4); +} + +u8 tegra_get_chip_id(void) +{ return (tegra_read_chipid() >> 8) & 0xff; } @@ -74,6 +74,7 @@ u32 tegra_read_ram_code(void) static const struct of_device_id apbmisc_match[] __initconst = { { .compatible = "nvidia,tegra20-apbmisc", }, + { .compatible = "nvidia,tegra186-misc", }, {}, }; diff --git a/drivers/soc/tegra/pmc-tegra186.c b/drivers/soc/tegra/pmc-tegra186.c deleted file mode 100644 index 6f5c6f98ba92..000000000000 --- a/drivers/soc/tegra/pmc-tegra186.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - */ - -#define pr_fmt(fmt) "tegra-pmc: " fmt - -#include <linux/io.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/platform_device.h> -#include <linux/reboot.h> - -#include <asm/system_misc.h> - -#define PMC_CNTRL 0x000 -#define PMC_CNTRL_MAIN_RST BIT(4) - -#define PMC_RST_STATUS 0x070 - -#define WAKE_AOWAKE_CTRL 0x4f4 -#define WAKE_AOWAKE_CTRL_INTR_POLARITY BIT(0) - -#define SCRATCH_SCRATCH0 0x2000 -#define SCRATCH_SCRATCH0_MODE_RECOVERY BIT(31) -#define SCRATCH_SCRATCH0_MODE_BOOTLOADER BIT(30) -#define SCRATCH_SCRATCH0_MODE_RCM BIT(1) -#define SCRATCH_SCRATCH0_MODE_MASK (SCRATCH_SCRATCH0_MODE_RECOVERY | \ - SCRATCH_SCRATCH0_MODE_BOOTLOADER | \ - SCRATCH_SCRATCH0_MODE_RCM) - -struct tegra_pmc { - struct device *dev; - void __iomem *regs; - void __iomem *wake; - void __iomem *aotag; - void __iomem *scratch; - - void (*system_restart)(enum reboot_mode mode, const char *cmd); - struct notifier_block restart; -}; - -static int tegra186_pmc_restart_notify(struct notifier_block *nb, - unsigned long action, - void *data) -{ - struct tegra_pmc *pmc = container_of(nb, struct tegra_pmc, restart); - const char *cmd = data; - u32 value; - - value = readl(pmc->scratch + SCRATCH_SCRATCH0); - value &= ~SCRATCH_SCRATCH0_MODE_MASK; - - if (cmd) { - if (strcmp(cmd, "recovery") == 0) - value |= SCRATCH_SCRATCH0_MODE_RECOVERY; - - if (strcmp(cmd, "bootloader") == 0) - value |= SCRATCH_SCRATCH0_MODE_BOOTLOADER; - - if (strcmp(cmd, "forced-recovery") == 0) - value |= SCRATCH_SCRATCH0_MODE_RCM; - } - - writel(value, pmc->scratch + SCRATCH_SCRATCH0); - - /* - * If available, call the system restart implementation that was - * registered earlier (typically PSCI). - */ - if (pmc->system_restart) { - pmc->system_restart(reboot_mode, cmd); - return NOTIFY_DONE; - } - - /* reset everything but SCRATCH0_SCRATCH0 and PMC_RST_STATUS */ - value = readl(pmc->regs + PMC_CNTRL); - value |= PMC_CNTRL_MAIN_RST; - writel(value, pmc->regs + PMC_CNTRL); - - return NOTIFY_DONE; -} - -static int tegra186_pmc_setup(struct tegra_pmc *pmc) -{ - struct device_node *np = pmc->dev->of_node; - bool invert; - u32 value; - - invert = of_property_read_bool(np, "nvidia,invert-interrupt"); - - value = readl(pmc->wake + WAKE_AOWAKE_CTRL); - - if (invert) - value |= WAKE_AOWAKE_CTRL_INTR_POLARITY; - else - value &= ~WAKE_AOWAKE_CTRL_INTR_POLARITY; - - writel(value, pmc->wake + WAKE_AOWAKE_CTRL); - - /* - * We need to hook any system restart implementation registered - * previously so we can write SCRATCH_SCRATCH0 before reset. - */ - pmc->system_restart = arm_pm_restart; - arm_pm_restart = NULL; - - pmc->restart.notifier_call = tegra186_pmc_restart_notify; - pmc->restart.priority = 128; - - return register_restart_handler(&pmc->restart); -} - -static int tegra186_pmc_probe(struct platform_device *pdev) -{ - struct tegra_pmc *pmc; - struct resource *res; - - pmc = devm_kzalloc(&pdev->dev, sizeof(*pmc), GFP_KERNEL); - if (!pmc) - return -ENOMEM; - - pmc->dev = &pdev->dev; - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pmc"); - pmc->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pmc->regs)) - return PTR_ERR(pmc->regs); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wake"); - pmc->wake = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pmc->wake)) - return PTR_ERR(pmc->wake); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aotag"); - pmc->aotag = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pmc->aotag)) - return PTR_ERR(pmc->aotag); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scratch"); - pmc->scratch = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(pmc->scratch)) - return PTR_ERR(pmc->scratch); - - return tegra186_pmc_setup(pmc); -} - -static const struct of_device_id tegra186_pmc_of_match[] = { - { .compatible = "nvidia,tegra186-pmc" }, - { /* sentinel */ } -}; -MODULE_DEVICE_TABLE(of, tegra186_pmc_of_match); - -static struct platform_driver tegra186_pmc_driver = { - .driver = { - .name = "tegra186-pmc", - .of_match_table = tegra186_pmc_of_match, - }, - .probe = tegra186_pmc_probe, -}; -builtin_platform_driver(tegra186_pmc_driver); diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index 0453ff6839a7..ce62a47a6647 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -66,11 +66,10 @@ #define PMC_PWR_DET 0x48 -#define PMC_SCRATCH0 0x50 -#define PMC_SCRATCH0_MODE_RECOVERY BIT(31) -#define PMC_SCRATCH0_MODE_BOOTLOADER BIT(30) -#define PMC_SCRATCH0_MODE_RCM BIT(1) -#define PMC_SCRATCH0_MODE_MASK (PMC_SCRATCH0_MODE_RECOVERY | \ +#define PMC_SCRATCH0_MODE_RECOVERY BIT(31) +#define PMC_SCRATCH0_MODE_BOOTLOADER BIT(30) +#define PMC_SCRATCH0_MODE_RCM BIT(1) +#define PMC_SCRATCH0_MODE_MASK (PMC_SCRATCH0_MODE_RECOVERY | \ PMC_SCRATCH0_MODE_BOOTLOADER | \ PMC_SCRATCH0_MODE_RCM) @@ -118,6 +117,10 @@ #define GPU_RG_CNTRL 0x2d4 +/* Tegra186 and later */ +#define WAKE_AOWAKE_CTRL 0x4f4 +#define WAKE_AOWAKE_CTRL_INTR_POLARITY BIT(0) + struct tegra_powergate { struct generic_pm_domain genpd; struct tegra_pmc *pmc; @@ -134,6 +137,14 @@ struct tegra_io_pad_soc { unsigned int voltage; }; +struct tegra_pmc_regs { + unsigned int scratch0; + unsigned int dpd_req; + unsigned int dpd_status; + unsigned int dpd2_req; + unsigned int dpd2_status; +}; + struct tegra_pmc_soc { unsigned int num_powergates; const char *const *powergates; @@ -145,6 +156,12 @@ struct tegra_pmc_soc { const struct tegra_io_pad_soc *io_pads; unsigned int num_io_pads; + + const struct tegra_pmc_regs *regs; + void (*init)(struct tegra_pmc *pmc); + void (*setup_irq_polarity)(struct tegra_pmc *pmc, + struct device_node *np, + bool invert); }; /** @@ -173,6 +190,9 @@ struct tegra_pmc_soc { struct tegra_pmc { struct device *dev; void __iomem *base; + void __iomem *wake; + void __iomem *aotag; + void __iomem *scratch; struct clk *clk; struct dentry *debugfs; @@ -645,7 +665,7 @@ static int tegra_pmc_restart_notify(struct notifier_block *this, const char *cmd = data; u32 value; - value = tegra_pmc_readl(PMC_SCRATCH0); + value = readl(pmc->scratch + pmc->soc->regs->scratch0); value &= ~PMC_SCRATCH0_MODE_MASK; if (cmd) { @@ -659,7 +679,7 @@ static int tegra_pmc_restart_notify(struct notifier_block *this, value |= PMC_SCRATCH0_MODE_RCM; } - tegra_pmc_writel(value, PMC_SCRATCH0); + writel(value, pmc->scratch + pmc->soc->regs->scratch0); /* reset everything but PMC_SCRATCH0 and PMC_RST_STATUS */ value = tegra_pmc_readl(PMC_CNTRL); @@ -954,25 +974,27 @@ static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request, *mask = BIT(pad->dpd % 32); if (pad->dpd < 32) { - *status = IO_DPD_STATUS; - *request = IO_DPD_REQ; + *status = pmc->soc->regs->dpd_status; + *request = pmc->soc->regs->dpd_req; } else { - *status = IO_DPD2_STATUS; - *request = IO_DPD2_REQ; + *status = pmc->soc->regs->dpd2_status; + *request = pmc->soc->regs->dpd2_req; } - rate = clk_get_rate(pmc->clk); - if (!rate) { - pr_err("failed to get clock rate\n"); - return -ENODEV; - } + if (pmc->clk) { + rate = clk_get_rate(pmc->clk); + if (!rate) { + pr_err("failed to get clock rate\n"); + return -ENODEV; + } - tegra_pmc_writel(DPD_SAMPLE_ENABLE, DPD_SAMPLE); + tegra_pmc_writel(DPD_SAMPLE_ENABLE, DPD_SAMPLE); - /* must be at least 200 ns, in APB (PCLK) clock cycles */ - value = DIV_ROUND_UP(1000000000, rate); - value = DIV_ROUND_UP(200, value); - tegra_pmc_writel(value, SEL_DPD_TIM); + /* must be at least 200 ns, in APB (PCLK) clock cycles */ + value = DIV_ROUND_UP(1000000000, rate); + value = DIV_ROUND_UP(200, value); + tegra_pmc_writel(value, SEL_DPD_TIM); + } return 0; } @@ -997,7 +1019,8 @@ static int tegra_io_pad_poll(unsigned long offset, u32 mask, static void tegra_io_pad_unprepare(void) { - tegra_pmc_writel(DPD_SAMPLE_DISABLE, DPD_SAMPLE); + if (pmc->clk) + tegra_pmc_writel(DPD_SAMPLE_DISABLE, DPD_SAMPLE); } /** @@ -1287,27 +1310,8 @@ static int tegra_pmc_parse_dt(struct tegra_pmc *pmc, struct device_node *np) static void tegra_pmc_init(struct tegra_pmc *pmc) { - u32 value; - - /* Always enable CPU power request */ - value = tegra_pmc_readl(PMC_CNTRL); - value |= PMC_CNTRL_CPU_PWRREQ_OE; - tegra_pmc_writel(value, PMC_CNTRL); - - value = tegra_pmc_readl(PMC_CNTRL); - - if (pmc->sysclkreq_high) - value &= ~PMC_CNTRL_SYSCLK_POLARITY; - else - value |= PMC_CNTRL_SYSCLK_POLARITY; - - /* configure the output polarity while the request is tristated */ - tegra_pmc_writel(value, PMC_CNTRL); - - /* now enable the request */ - value = tegra_pmc_readl(PMC_CNTRL); - value |= PMC_CNTRL_SYSCLK_OE; - tegra_pmc_writel(value, PMC_CNTRL); + if (pmc->soc->init) + pmc->soc->init(pmc); } static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc) @@ -1410,11 +1414,43 @@ static int tegra_pmc_probe(struct platform_device *pdev) if (IS_ERR(base)) return PTR_ERR(base); + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wake"); + if (res) { + pmc->wake = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pmc->wake)) + return PTR_ERR(pmc->wake); + } else { + pmc->wake = base; + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "aotag"); + if (res) { + pmc->aotag = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pmc->aotag)) + return PTR_ERR(pmc->aotag); + } else { + pmc->aotag = base; + } + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "scratch"); + if (res) { + pmc->scratch = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(pmc->scratch)) + return PTR_ERR(pmc->scratch); + } else { + pmc->scratch = base; + } + pmc->clk = devm_clk_get(&pdev->dev, "pclk"); if (IS_ERR(pmc->clk)) { err = PTR_ERR(pmc->clk); - dev_err(&pdev->dev, "failed to get pclk: %d\n", err); - return err; + + if (err != -ENOENT) { + dev_err(&pdev->dev, "failed to get pclk: %d\n", err); + return err; + } + + pmc->clk = NULL; } pmc->dev = &pdev->dev; @@ -1474,6 +1510,55 @@ static const char * const tegra20_powergates[] = { [TEGRA_POWERGATE_MPE] = "mpe", }; +static const struct tegra_pmc_regs tegra20_pmc_regs = { + .scratch0 = 0x50, + .dpd_req = 0x1b8, + .dpd_status = 0x1bc, + .dpd2_req = 0x1c0, + .dpd2_status = 0x1c4, +}; + +static void tegra20_pmc_init(struct tegra_pmc *pmc) +{ + u32 value; + + /* Always enable CPU power request */ + value = tegra_pmc_readl(PMC_CNTRL); + value |= PMC_CNTRL_CPU_PWRREQ_OE; + tegra_pmc_writel(value, PMC_CNTRL); + + value = tegra_pmc_readl(PMC_CNTRL); + + if (pmc->sysclkreq_high) + value &= ~PMC_CNTRL_SYSCLK_POLARITY; + else + value |= PMC_CNTRL_SYSCLK_POLARITY; + + /* configure the output polarity while the request is tristated */ + tegra_pmc_writel(value, PMC_CNTRL); + + /* now enable the request */ + value = tegra_pmc_readl(PMC_CNTRL); + value |= PMC_CNTRL_SYSCLK_OE; + tegra_pmc_writel(value, PMC_CNTRL); +} + +static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc, + struct device_node *np, + bool invert) +{ + u32 value; + + value = tegra_pmc_readl(PMC_CNTRL); + + if (invert) + value |= PMC_CNTRL_INTR_POLARITY; + else + value &= ~PMC_CNTRL_INTR_POLARITY; + + tegra_pmc_writel(value, PMC_CNTRL); +} + static const struct tegra_pmc_soc tegra20_pmc_soc = { .num_powergates = ARRAY_SIZE(tegra20_powergates), .powergates = tegra20_powergates, @@ -1481,6 +1566,11 @@ static const struct tegra_pmc_soc tegra20_pmc_soc = { .cpu_powergates = NULL, .has_tsense_reset = false, .has_gpu_clamps = false, + .num_io_pads = 0, + .io_pads = NULL, + .regs = &tegra20_pmc_regs, + .init = tegra20_pmc_init, + .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, }; static const char * const tegra30_powergates[] = { @@ -1514,6 +1604,11 @@ static const struct tegra_pmc_soc tegra30_pmc_soc = { .cpu_powergates = tegra30_cpu_powergates, .has_tsense_reset = true, .has_gpu_clamps = false, + .num_io_pads = 0, + .io_pads = NULL, + .regs = &tegra20_pmc_regs, + .init = tegra20_pmc_init, + .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, }; static const char * const tegra114_powergates[] = { @@ -1551,6 +1646,11 @@ static const struct tegra_pmc_soc tegra114_pmc_soc = { .cpu_powergates = tegra114_cpu_powergates, .has_tsense_reset = true, .has_gpu_clamps = false, + .num_io_pads = 0, + .io_pads = NULL, + .regs = &tegra20_pmc_regs, + .init = tegra20_pmc_init, + .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, }; static const char * const tegra124_powergates[] = { @@ -1628,6 +1728,9 @@ static const struct tegra_pmc_soc tegra124_pmc_soc = { .has_gpu_clamps = true, .num_io_pads = ARRAY_SIZE(tegra124_io_pads), .io_pads = tegra124_io_pads, + .regs = &tegra20_pmc_regs, + .init = tegra20_pmc_init, + .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, }; static const char * const tegra210_powergates[] = { @@ -1714,9 +1817,110 @@ static const struct tegra_pmc_soc tegra210_pmc_soc = { .has_gpu_clamps = true, .num_io_pads = ARRAY_SIZE(tegra210_io_pads), .io_pads = tegra210_io_pads, + .regs = &tegra20_pmc_regs, + .init = tegra20_pmc_init, + .setup_irq_polarity = tegra20_pmc_setup_irq_polarity, +}; + +static const struct tegra_io_pad_soc tegra186_io_pads[] = { + { .id = TEGRA_IO_PAD_CSIA, .dpd = 0, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_CSIB, .dpd = 1, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_DSI, .dpd = 2, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_MIPI_BIAS, .dpd = 3, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_PEX_CLK_BIAS, .dpd = 4, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_PEX_CLK3, .dpd = 5, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_PEX_CLK2, .dpd = 6, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_PEX_CLK1, .dpd = 7, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_USB0, .dpd = 9, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_USB1, .dpd = 10, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_USB2, .dpd = 11, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_USB_BIAS, .dpd = 12, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_UART, .dpd = 14, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_AUDIO, .dpd = 17, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_HSIC, .dpd = 19, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_DBG, .dpd = 25, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_HDMI_DP0, .dpd = 28, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_HDMI_DP1, .dpd = 29, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_PEX_CNTRL, .dpd = 32, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_SDMMC2_HV, .dpd = 34, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_SDMMC4, .dpd = 36, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_CAM, .dpd = 38, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_DSIB, .dpd = 40, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_DSIC, .dpd = 41, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_DSID, .dpd = 42, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_CSIC, .dpd = 43, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_CSID, .dpd = 44, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_CSIE, .dpd = 45, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_CSIF, .dpd = 46, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_SPI, .dpd = 47, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_UFS, .dpd = 49, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_DMIC_HV, .dpd = 52, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_EDP, .dpd = 53, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_SDMMC1_HV, .dpd = 55, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_SDMMC3_HV, .dpd = 56, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_CONN, .dpd = 60, .voltage = UINT_MAX }, + { .id = TEGRA_IO_PAD_AUDIO_HV, .dpd = 61, .voltage = UINT_MAX }, +}; + +static const struct tegra_pmc_regs tegra186_pmc_regs = { + .scratch0 = 0x2000, + .dpd_req = 0x74, + .dpd_status = 0x78, + .dpd2_req = 0x7c, + .dpd2_status = 0x80, +}; + +static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc, + struct device_node *np, + bool invert) +{ + struct resource regs; + void __iomem *wake; + u32 value; + int index; + + index = of_property_match_string(np, "reg-names", "wake"); + if (index < 0) { + pr_err("failed to find PMC wake registers\n"); + return; + } + + of_address_to_resource(np, index, ®s); + + wake = ioremap_nocache(regs.start, resource_size(®s)); + if (!wake) { + pr_err("failed to map PMC wake registers\n"); + return; + } + + value = readl(wake + WAKE_AOWAKE_CTRL); + + if (invert) + value |= WAKE_AOWAKE_CTRL_INTR_POLARITY; + else + value &= ~WAKE_AOWAKE_CTRL_INTR_POLARITY; + + writel(value, wake + WAKE_AOWAKE_CTRL); + + iounmap(wake); +} + +static const struct tegra_pmc_soc tegra186_pmc_soc = { + .num_powergates = 0, + .powergates = NULL, + .num_cpu_powergates = 0, + .cpu_powergates = NULL, + .has_tsense_reset = false, + .has_gpu_clamps = false, + .num_io_pads = ARRAY_SIZE(tegra186_io_pads), + .io_pads = tegra186_io_pads, + .regs = &tegra186_pmc_regs, + .init = NULL, + .setup_irq_polarity = tegra186_pmc_setup_irq_polarity, }; static const struct of_device_id tegra_pmc_match[] = { + { .compatible = "nvidia,tegra186-pmc", .data = &tegra186_pmc_soc }, { .compatible = "nvidia,tegra210-pmc", .data = &tegra210_pmc_soc }, { .compatible = "nvidia,tegra132-pmc", .data = &tegra124_pmc_soc }, { .compatible = "nvidia,tegra124-pmc", .data = &tegra124_pmc_soc }, @@ -1749,7 +1953,6 @@ static int __init tegra_pmc_early_init(void) struct device_node *np; struct resource regs; bool invert; - u32 value; mutex_init(&pmc->powergates_lock); @@ -1810,14 +2013,7 @@ static int __init tegra_pmc_early_init(void) */ invert = of_property_read_bool(np, "nvidia,invert-interrupt"); - value = tegra_pmc_readl(PMC_CNTRL); - - if (invert) - value |= PMC_CNTRL_INTR_POLARITY; - else - value &= ~PMC_CNTRL_INTR_POLARITY; - - tegra_pmc_writel(value, PMC_CNTRL); + pmc->soc->setup_irq_polarity(pmc, np, invert); of_node_put(np); } |