diff options
| -rw-r--r-- | Documentation/devicetree/bindings/soc/rockchip/grf.txt | 4 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/soc/rockchip/power_domain.txt | 3 | ||||
| -rw-r--r-- | arch/arm/mach-rockchip/rockchip.c | 12 | ||||
| -rw-r--r-- | drivers/soc/rockchip/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/soc/rockchip/Makefile | 1 | ||||
| -rw-r--r-- | drivers/soc/rockchip/grf.c | 134 | ||||
| -rw-r--r-- | drivers/soc/rockchip/pm_domains.c | 63 | ||||
| -rw-r--r-- | include/dt-bindings/power/rk3328-power.h | 18 |
8 files changed, 227 insertions, 18 deletions
diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.txt b/Documentation/devicetree/bindings/soc/rockchip/grf.txt index 013e71a2cdc7..c6e62cb30712 100644 --- a/Documentation/devicetree/bindings/soc/rockchip/grf.txt +++ b/Documentation/devicetree/bindings/soc/rockchip/grf.txt @@ -5,11 +5,13 @@ is composed of many registers for system control. From RK3368 SoCs, the GRF is divided into two sections, - GRF, used for general non-secure system, +- SGRF, used for general secure system, - PMUGRF, used for always on system Required Properties: - compatible: GRF should be one of the followings + - "rockchip,rk3036-grf", "syscon": for rk3036 - "rockchip,rk3066-grf", "syscon": for rk3066 - "rockchip,rk3188-grf", "syscon": for rk3188 - "rockchip,rk3228-grf", "syscon": for rk3228 @@ -19,6 +21,8 @@ Required Properties: - compatible: PMUGRF should be one of the followings - "rockchip,rk3368-pmugrf", "syscon": for rk3368 - "rockchip,rk3399-pmugrf", "syscon": for rk3399 +- compatible: SGRF should be one of the following + - "rockchip,rk3288-sgrf", "syscon": for rk3288 - reg: physical base address of the controller and length of memory mapped region. diff --git a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt index f909ce06afc4..01bfb6745fbd 100644 --- a/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt +++ b/Documentation/devicetree/bindings/soc/rockchip/power_domain.txt @@ -6,6 +6,7 @@ powered up/down by software based on different application scenes to save power. Required properties for power domain controller: - compatible: Should be one of the following. "rockchip,rk3288-power-controller" - for RK3288 SoCs. + "rockchip,rk3328-power-controller" - for RK3328 SoCs. "rockchip,rk3368-power-controller" - for RK3368 SoCs. "rockchip,rk3399-power-controller" - for RK3399 SoCs. - #power-domain-cells: Number of cells in a power-domain specifier. @@ -16,6 +17,7 @@ Required properties for power domain controller: Required properties for power domain sub nodes: - reg: index of the power domain, should use macros in: "include/dt-bindings/power/rk3288-power.h" - for RK3288 type power domain. + "include/dt-bindings/power/rk3328-power.h" - for RK3328 type power domain. "include/dt-bindings/power/rk3368-power.h" - for RK3368 type power domain. "include/dt-bindings/power/rk3399-power.h" - for RK3399 type power domain. - clocks (optional): phandles to clocks which need to be enabled while power domain @@ -90,6 +92,7 @@ containing a phandle to the power device node and an index specifying which power domain to use. The index should use macros in: "include/dt-bindings/power/rk3288-power.h" - for rk3288 type power domain. + "include/dt-bindings/power/rk3328-power.h" - for rk3328 type power domain. "include/dt-bindings/power/rk3368-power.h" - for rk3368 type power domain. "include/dt-bindings/power/rk3399-power.h" - for rk3399 type power domain. diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c index a7ab9ec141f8..ef0500a4c8ad 100644 --- a/arch/arm/mach-rockchip/rockchip.c +++ b/arch/arm/mach-rockchip/rockchip.c @@ -29,13 +29,11 @@ #include "core.h" #include "pm.h" -#define RK3288_GRF_SOC_CON0 0x244 #define RK3288_TIMER6_7_PHYS 0xff810000 static void __init rockchip_timer_init(void) { if (of_machine_is_compatible("rockchip,rk3288")) { - struct regmap *grf; void __iomem *reg_base; /* @@ -54,16 +52,6 @@ static void __init rockchip_timer_init(void) } else { pr_err("rockchip: could not map timer7 registers\n"); } - - /* - * Disable auto jtag/sdmmc switching that causes issues - * with the mmc controllers making them unreliable - */ - grf = syscon_regmap_lookup_by_compatible("rockchip,rk3288-grf"); - if (!IS_ERR(grf)) - regmap_write(grf, RK3288_GRF_SOC_CON0, 0x10000000); - else - pr_err("rockchip: could not get grf syscon\n"); } of_clk_init(NULL); diff --git a/drivers/soc/rockchip/Kconfig b/drivers/soc/rockchip/Kconfig index 7140ff825598..20da55d9cbb1 100644 --- a/drivers/soc/rockchip/Kconfig +++ b/drivers/soc/rockchip/Kconfig @@ -3,6 +3,16 @@ if ARCH_ROCKCHIP || COMPILE_TEST # # Rockchip Soc drivers # + +config ROCKCHIP_GRF + bool + default y + help + The General Register Files are a central component providing + special additional settings registers for a lot of soc-components. + In a lot of cases there also need to be default settings initialized + to make some of them conform to expectations of the kernel. + config ROCKCHIP_PM_DOMAINS bool "Rockchip generic power domain" depends on PM diff --git a/drivers/soc/rockchip/Makefile b/drivers/soc/rockchip/Makefile index 3d73d0672d22..c851fa0056d0 100644 --- a/drivers/soc/rockchip/Makefile +++ b/drivers/soc/rockchip/Makefile @@ -1,4 +1,5 @@ # # Rockchip Soc drivers # +obj-$(CONFIG_ROCKCHIP_GRF) += grf.o obj-$(CONFIG_ROCKCHIP_PM_DOMAINS) += pm_domains.o diff --git a/drivers/soc/rockchip/grf.c b/drivers/soc/rockchip/grf.c new file mode 100644 index 000000000000..d61db34ad6dd --- /dev/null +++ b/drivers/soc/rockchip/grf.c @@ -0,0 +1,134 @@ +/* + * Rockchip Generic Register Files setup + * + * Copyright (c) 2016 Heiko Stuebner <heiko@sntech.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/err.h> +#include <linux/mfd/syscon.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +#define HIWORD_UPDATE(val, mask, shift) \ + ((val) << (shift) | (mask) << ((shift) + 16)) + +struct rockchip_grf_value { + const char *desc; + u32 reg; + u32 val; +}; + +struct rockchip_grf_info { + const struct rockchip_grf_value *values; + int num_values; +}; + +#define RK3036_GRF_SOC_CON0 0x140 + +static const struct rockchip_grf_value rk3036_defaults[] __initconst = { + /* + * Disable auto jtag/sdmmc switching that causes issues with the + * clock-framework and the mmc controllers making them unreliable. + */ + { "jtag switching", RK3036_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 11) }, +}; + +static const struct rockchip_grf_info rk3036_grf __initconst = { + .values = rk3036_defaults, + .num_values = ARRAY_SIZE(rk3036_defaults), +}; + +#define RK3288_GRF_SOC_CON0 0x244 + +static const struct rockchip_grf_value rk3288_defaults[] __initconst = { + { "jtag switching", RK3288_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 12) }, +}; + +static const struct rockchip_grf_info rk3288_grf __initconst = { + .values = rk3288_defaults, + .num_values = ARRAY_SIZE(rk3288_defaults), +}; + +#define RK3368_GRF_SOC_CON15 0x43c + +static const struct rockchip_grf_value rk3368_defaults[] __initconst = { + { "jtag switching", RK3368_GRF_SOC_CON15, HIWORD_UPDATE(0, 1, 13) }, +}; + +static const struct rockchip_grf_info rk3368_grf __initconst = { + .values = rk3368_defaults, + .num_values = ARRAY_SIZE(rk3368_defaults), +}; + +#define RK3399_GRF_SOC_CON7 0xe21c + +static const struct rockchip_grf_value rk3399_defaults[] __initconst = { + { "jtag switching", RK3399_GRF_SOC_CON7, HIWORD_UPDATE(0, 1, 12) }, +}; + +static const struct rockchip_grf_info rk3399_grf __initconst = { + .values = rk3399_defaults, + .num_values = ARRAY_SIZE(rk3399_defaults), +}; + +static const struct of_device_id rockchip_grf_dt_match[] __initconst = { + { + .compatible = "rockchip,rk3036-grf", + .data = (void *)&rk3036_grf, + }, { + .compatible = "rockchip,rk3288-grf", + .data = (void *)&rk3288_grf, + }, { + .compatible = "rockchip,rk3368-grf", + .data = (void *)&rk3368_grf, + }, { + .compatible = "rockchip,rk3399-grf", + .data = (void *)&rk3399_grf, + }, + { /* sentinel */ }, +}; + +static int __init rockchip_grf_init(void) +{ + const struct rockchip_grf_info *grf_info; + const struct of_device_id *match; + struct device_node *np; + struct regmap *grf; + int ret, i; + + np = of_find_matching_node_and_match(NULL, rockchip_grf_dt_match, + &match); + if (!np) + return -ENODEV; + if (!match || !match->data) { + pr_err("%s: missing grf data\n", __func__); + return -EINVAL; + } + + grf_info = match->data; + + grf = syscon_node_to_regmap(np); + if (IS_ERR(grf)) { + pr_err("%s: could not get grf syscon\n", __func__); + return PTR_ERR(grf); + } + + for (i = 0; i < grf_info->num_values; i++) { + const struct rockchip_grf_value *val = &grf_info->values[i]; + + pr_debug("%s: adjusting %s in %#6x to %#10x\n", __func__, + val->desc, val->reg, val->val); + ret = regmap_write(grf, val->reg, val->val); + if (ret < 0) + pr_err("%s: write to %#6x failed with %d\n", + __func__, val->reg, ret); + } + + return 0; +} +postcore_initcall(rockchip_grf_init); diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c index 1c78c42416c6..796c46a6cbe7 100644 --- a/drivers/soc/rockchip/pm_domains.c +++ b/drivers/soc/rockchip/pm_domains.c @@ -19,6 +19,7 @@ #include <linux/regmap.h> #include <linux/mfd/syscon.h> #include <dt-bindings/power/rk3288-power.h> +#include <dt-bindings/power/rk3328-power.h> #include <dt-bindings/power/rk3368-power.h> #include <dt-bindings/power/rk3399-power.h> @@ -29,6 +30,8 @@ struct rockchip_domain_info { int idle_mask; int ack_mask; bool active_wakeup; + int pwr_w_mask; + int req_w_mask; }; struct rockchip_pmu_info { @@ -87,9 +90,24 @@ struct rockchip_pmu { .active_wakeup = wakeup, \ } +#define DOMAIN_M(pwr, status, req, idle, ack, wakeup) \ +{ \ + .pwr_w_mask = (pwr >= 0) ? BIT(pwr + 16) : 0, \ + .pwr_mask = (pwr >= 0) ? BIT(pwr) : 0, \ + .status_mask = (status >= 0) ? BIT(status) : 0, \ + .req_w_mask = (req >= 0) ? BIT(req + 16) : 0, \ + .req_mask = (req >= 0) ? BIT(req) : 0, \ + .idle_mask = (idle >= 0) ? BIT(idle) : 0, \ + .ack_mask = (ack >= 0) ? BIT(ack) : 0, \ + .active_wakeup = wakeup, \ +} + #define DOMAIN_RK3288(pwr, status, req, wakeup) \ DOMAIN(pwr, status, req, req, (req) + 16, wakeup) +#define DOMAIN_RK3328(pwr, status, req, wakeup) \ + DOMAIN_M(pwr, pwr, req, (req) + 10, req, wakeup) + #define DOMAIN_RK3368(pwr, status, req, wakeup) \ DOMAIN(pwr, status, req, (req) + 16, req, wakeup) @@ -127,9 +145,13 @@ static int rockchip_pmu_set_idle_request(struct rockchip_pm_domain *pd, if (pd_info->req_mask == 0) return 0; - - regmap_update_bits(pmu->regmap, pmu->info->req_offset, - pd_info->req_mask, idle ? -1U : 0); + else if (pd_info->req_w_mask) + regmap_write(pmu->regmap, pmu->info->req_offset, + idle ? (pd_info->req_mask | pd_info->req_w_mask) : + pd_info->req_w_mask); + else + regmap_update_bits(pmu->regmap, pmu->info->req_offset, + pd_info->req_mask, idle ? -1U : 0); dsb(sy); @@ -230,9 +252,13 @@ static void rockchip_do_pmu_set_power_domain(struct rockchip_pm_domain *pd, if (pd->info->pwr_mask == 0) return; - - regmap_update_bits(pmu->regmap, pmu->info->pwr_offset, - pd->info->pwr_mask, on ? 0 : -1U); + else if (pd->info->pwr_w_mask) + regmap_write(pmu->regmap, pmu->info->pwr_offset, + on ? pd->info->pwr_mask : + (pd->info->pwr_mask | pd->info->pwr_w_mask)); + else + regmap_update_bits(pmu->regmap, pmu->info->pwr_offset, + pd->info->pwr_mask, on ? 0 : -1U); dsb(sy); @@ -692,6 +718,18 @@ static const struct rockchip_domain_info rk3288_pm_domains[] = { [RK3288_PD_GPU] = DOMAIN_RK3288(9, 9, 2, false), }; +static const struct rockchip_domain_info rk3328_pm_domains[] = { + [RK3328_PD_CORE] = DOMAIN_RK3328(-1, 0, 0, false), + [RK3328_PD_GPU] = DOMAIN_RK3328(-1, 1, 1, false), + [RK3328_PD_BUS] = DOMAIN_RK3328(-1, 2, 2, true), + [RK3328_PD_MSCH] = DOMAIN_RK3328(-1, 3, 3, true), + [RK3328_PD_PERI] = DOMAIN_RK3328(-1, 4, 4, true), + [RK3328_PD_VIDEO] = DOMAIN_RK3328(-1, 5, 5, false), + [RK3328_PD_HEVC] = DOMAIN_RK3328(-1, 6, 6, false), + [RK3328_PD_VIO] = DOMAIN_RK3328(-1, 8, 8, false), + [RK3328_PD_VPU] = DOMAIN_RK3328(-1, 9, 9, false), +}; + static const struct rockchip_domain_info rk3368_pm_domains[] = { [RK3368_PD_PERI] = DOMAIN_RK3368(13, 12, 6, true), [RK3368_PD_VIO] = DOMAIN_RK3368(15, 14, 8, false), @@ -747,6 +785,15 @@ static const struct rockchip_pmu_info rk3288_pmu = { .domain_info = rk3288_pm_domains, }; +static const struct rockchip_pmu_info rk3328_pmu = { + .req_offset = 0x414, + .idle_offset = 0x484, + .ack_offset = 0x484, + + .num_domains = ARRAY_SIZE(rk3328_pm_domains), + .domain_info = rk3328_pm_domains, +}; + static const struct rockchip_pmu_info rk3368_pmu = { .pwr_offset = 0x0c, .status_offset = 0x10, @@ -783,6 +830,10 @@ static const struct of_device_id rockchip_pm_domain_dt_match[] = { .data = (void *)&rk3288_pmu, }, { + .compatible = "rockchip,rk3328-power-controller", + .data = (void *)&rk3328_pmu, + }, + { .compatible = "rockchip,rk3368-power-controller", .data = (void *)&rk3368_pmu, }, diff --git a/include/dt-bindings/power/rk3328-power.h b/include/dt-bindings/power/rk3328-power.h new file mode 100644 index 000000000000..10c3c3715334 --- /dev/null +++ b/include/dt-bindings/power/rk3328-power.h @@ -0,0 +1,18 @@ +#ifndef __DT_BINDINGS_POWER_RK3328_POWER_H__ +#define __DT_BINDINGS_POWER_RK3328_POWER_H__ + +/** + * RK3328 idle id Summary. + */ +#define RK3328_PD_CORE 0 +#define RK3328_PD_GPU 1 +#define RK3328_PD_BUS 2 +#define RK3328_PD_MSCH 3 +#define RK3328_PD_PERI 4 +#define RK3328_PD_VIDEO 5 +#define RK3328_PD_HEVC 6 +#define RK3328_PD_SYS 7 +#define RK3328_PD_VPU 8 +#define RK3328_PD_VIO 9 + +#endif |