From: Tero Kristo Date: Mon, 8 Sep 2014 08:29:43 +0000 (+0300) Subject: ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility X-Git-Tag: v4.14-rc1~5509^2~3^2^2~18 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=48e0c1148d18de677f1b2aec179f36fb7c1e3839;p=platform%2Fkernel%2Flinux-rpi.git ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility PRM device instance offset is now provided through the prm_init_data. This gets rid of some cpu_is_X / soc_is_X calls from PRM core code, preparing for PRM to be its own separate driver. Signed-off-by: Tero Kristo --- diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 461bdc4..6ae0b3a 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -524,6 +524,7 @@ struct omap_prcm_irq_setup { * @mem: IO mem pointer for this module * @offset: module base address offset from the IO base * @flags: PRCM module init flags + * @device_inst_offset: device instance offset within the module address space * @init: low level PRCM init function for this module * @np: device node for this PRCM module */ @@ -532,6 +533,7 @@ struct omap_prcm_init_data { void __iomem *mem; s16 offset; u16 flags; + s32 device_inst_offset; int (*init)(const struct omap_prcm_init_data *data); struct device_node *np; }; diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index e3f2d31..a980d245 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -713,6 +713,8 @@ int __init omap44xx_prm_init(const struct omap_prcm_init_data *data) if (!soc_is_dra7xx()) prm_features |= PRM_HAS_VOLTAGE; + omap4_prminst_set_prm_dev_inst(data->device_inst_offset); + return prm_register(&omap44xx_prm_ll_data); } diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index aede589..a834124 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -34,6 +34,9 @@ #include "prm3xxx.h" #include "prm33xx.h" #include "prm44xx.h" +#include "prm54xx.h" +#include "prm7xx.h" +#include "prcm43xx.h" #include "common.h" #include "clock.h" #include "cm.h" @@ -661,11 +664,35 @@ static struct omap_prcm_init_data am3_prm_data __initdata = { }; #endif -#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \ - defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM43XX) +#ifdef CONFIG_ARCH_OMAP4 static struct omap_prcm_init_data omap4_prm_data __initdata = { .index = TI_CLKM_PRM, .init = omap44xx_prm_init, + .device_inst_offset = OMAP4430_PRM_DEVICE_INST, +}; +#endif + +#ifdef CONFIG_SOC_OMAP5 +static struct omap_prcm_init_data omap5_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap44xx_prm_init, + .device_inst_offset = OMAP54XX_PRM_DEVICE_INST, +}; +#endif + +#ifdef CONFIG_SOC_DRA7XX +static struct omap_prcm_init_data dra7_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap44xx_prm_init, + .device_inst_offset = DRA7XX_PRM_DEVICE_INST, +}; +#endif + +#ifdef CONFIG_SOC_AM43XX +static struct omap_prcm_init_data am4_prm_data __initdata = { + .index = TI_CLKM_PRM, + .init = omap44xx_prm_init, + .device_inst_offset = AM43XX_PRM_DEVICE_INST, }; #endif @@ -680,7 +707,7 @@ static const struct of_device_id omap_prcm_dt_match_table[] __initconst = { { .compatible = "ti,am3-prcm", .data = &am3_prm_data }, #endif #ifdef CONFIG_SOC_AM43XX - { .compatible = "ti,am4-prcm", .data = &omap4_prm_data }, + { .compatible = "ti,am4-prcm", .data = &am4_prm_data }, #endif #ifdef CONFIG_SOC_TI81XX { .compatible = "ti,dm814-prcm", .data = &am3_prm_data }, @@ -697,11 +724,11 @@ static const struct of_device_id omap_prcm_dt_match_table[] __initconst = { { .compatible = "ti,omap4-scrm", .data = &scrm_data }, #endif #ifdef CONFIG_SOC_OMAP5 - { .compatible = "ti,omap5-prm", .data = &omap4_prm_data }, + { .compatible = "ti,omap5-prm", .data = &omap5_prm_data }, { .compatible = "ti,omap5-scrm", .data = &scrm_data }, #endif #ifdef CONFIG_SOC_DRA7XX - { .compatible = "ti,dra7-prm", .data = &omap4_prm_data }, + { .compatible = "ti,dra7-prm", .data = &dra7_prm_data }, #endif { } }; diff --git a/arch/arm/mach-omap2/prminst44xx.c b/arch/arm/mach-omap2/prminst44xx.c index 8adf7b1..c4859c4 100644 --- a/arch/arm/mach-omap2/prminst44xx.c +++ b/arch/arm/mach-omap2/prminst44xx.c @@ -47,22 +47,14 @@ void omap_prm_base_init(void) s32 omap4_prmst_get_prm_dev_inst(void) { - if (prm_dev_inst != PRM_INSTANCE_UNKNOWN) - return prm_dev_inst; - - /* This cannot be done way early at boot.. as things are not setup */ - if (cpu_is_omap44xx()) - prm_dev_inst = OMAP4430_PRM_DEVICE_INST; - else if (soc_is_omap54xx()) - prm_dev_inst = OMAP54XX_PRM_DEVICE_INST; - else if (soc_is_dra7xx()) - prm_dev_inst = DRA7XX_PRM_DEVICE_INST; - else if (soc_is_am43xx()) - prm_dev_inst = AM43XX_PRM_DEVICE_INST; - return prm_dev_inst; } +void omap4_prminst_set_prm_dev_inst(s32 dev_inst) +{ + prm_dev_inst = dev_inst; +} + /* Read a register in a PRM instance */ u32 omap4_prminst_read_inst_reg(u8 part, s16 inst, u16 idx) { diff --git a/arch/arm/mach-omap2/prminst44xx.h b/arch/arm/mach-omap2/prminst44xx.h index fb1c9d7..0c03d07 100644 --- a/arch/arm/mach-omap2/prminst44xx.h +++ b/arch/arm/mach-omap2/prminst44xx.h @@ -14,6 +14,7 @@ #define PRM_INSTANCE_UNKNOWN -1 extern s32 omap4_prmst_get_prm_dev_inst(void); +void omap4_prminst_set_prm_dev_inst(s32 dev_inst); /* * In an ideal world, we would not export these low-level functions,