From 425dc8b2dff222ffd88f31f589dc647409cae0ce Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Fri, 21 Nov 2014 15:51:37 +0200 Subject: ARM: OMAP2+: CM: move SoC specific init calls within a generic API This gets rid of need for some exported driver APIs, and simplifies the initialization of the CM driver. Done in preparation to make CM a separate driver. The init data is now also passed to the SoC specific implementations, allowing future expansion to add feature flags etc. Signed-off-by: Tero Kristo --- arch/arm/mach-omap2/cm2xxx.c | 3 +- arch/arm/mach-omap2/cm2xxx.h | 2 +- arch/arm/mach-omap2/cm33xx.c | 3 +- arch/arm/mach-omap2/cm33xx.h | 3 +- arch/arm/mach-omap2/cm3xxx.c | 3 +- arch/arm/mach-omap2/cm3xxx.h | 2 +- arch/arm/mach-omap2/cm44xx.h | 2 +- arch/arm/mach-omap2/cm_common.c | 64 +++++++++++++++++++++++++++++++++------- arch/arm/mach-omap2/cminst44xx.c | 3 +- arch/arm/mach-omap2/io.c | 16 ++++------ arch/arm/mach-omap2/prm_common.c | 8 ++++- 11 files changed, 75 insertions(+), 34 deletions(-) diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c index f18c844353bc..3e5fd3587eb1 100644 --- a/arch/arm/mach-omap2/cm2xxx.c +++ b/arch/arm/mach-omap2/cm2xxx.c @@ -393,9 +393,8 @@ static struct cm_ll_data omap2xxx_cm_ll_data = { .wait_module_ready = &omap2xxx_cm_wait_module_ready, }; -int __init omap2xxx_cm_init(void) +int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data) { - omap2_cm_base_init(); return cm_register(&omap2xxx_cm_ll_data); } diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h index 83b6c597b0e1..7b8c79c0ce27 100644 --- a/arch/arm/mach-omap2/cm2xxx.h +++ b/arch/arm/mach-omap2/cm2xxx.h @@ -63,7 +63,7 @@ extern u32 omap2xxx_cm_get_core_pll_config(void); extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core, u32 mdm); -extern int __init omap2xxx_cm_init(void); +int __init omap2xxx_cm_init(const struct omap_prcm_init_data *data); #endif diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c index 221bca3fbfa6..7b181f929525 100644 --- a/arch/arm/mach-omap2/cm33xx.c +++ b/arch/arm/mach-omap2/cm33xx.c @@ -352,9 +352,8 @@ static struct cm_ll_data am33xx_cm_ll_data = { .module_disable = &am33xx_cm_module_disable, }; -int __init am33xx_cm_init(void) +int __init am33xx_cm_init(const struct omap_prcm_init_data *data) { - omap2_cm_base_init(); return cm_register(&am33xx_cm_ll_data); } diff --git a/arch/arm/mach-omap2/cm33xx.h b/arch/arm/mach-omap2/cm33xx.h index 046b4b2bc9d9..a91f7d282455 100644 --- a/arch/arm/mach-omap2/cm33xx.h +++ b/arch/arm/mach-omap2/cm33xx.h @@ -19,6 +19,7 @@ #include "cm.h" #include "cm-regbits-33xx.h" +#include "prcm-common.h" /* CM base address */ #define AM33XX_CM_BASE 0x44e00000 @@ -374,6 +375,6 @@ #ifndef __ASSEMBLER__ -int am33xx_cm_init(void); +int am33xx_cm_init(const struct omap_prcm_init_data *data); #endif /* ASSEMBLER */ #endif diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c index 88e6cb619861..187fa4386718 100644 --- a/arch/arm/mach-omap2/cm3xxx.c +++ b/arch/arm/mach-omap2/cm3xxx.c @@ -671,10 +671,9 @@ static struct cm_ll_data omap3xxx_cm_ll_data = { .wait_module_ready = &omap3xxx_cm_wait_module_ready, }; -int __init omap3xxx_cm_init(void) +int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data) { omap2_clk_legacy_provider_init(TI_CLKM_CM, cm_base + OMAP3430_IVA2_MOD); - omap2_cm_base_init(); return cm_register(&omap3xxx_cm_ll_data); } diff --git a/arch/arm/mach-omap2/cm3xxx.h b/arch/arm/mach-omap2/cm3xxx.h index 734a8581c0c4..bc444e2080a1 100644 --- a/arch/arm/mach-omap2/cm3xxx.h +++ b/arch/arm/mach-omap2/cm3xxx.h @@ -72,7 +72,7 @@ extern void omap3_cm_save_context(void); extern void omap3_cm_restore_context(void); extern void omap3_cm_save_scratchpad_contents(u32 *ptr); -extern int __init omap3xxx_cm_init(void); +int __init omap3xxx_cm_init(const struct omap_prcm_init_data *data); #endif diff --git a/arch/arm/mach-omap2/cm44xx.h b/arch/arm/mach-omap2/cm44xx.h index ad6e263c5a6b..309a4c913448 100644 --- a/arch/arm/mach-omap2/cm44xx.h +++ b/arch/arm/mach-omap2/cm44xx.h @@ -23,6 +23,6 @@ #define OMAP4_CM_CLKSTCTRL 0x0000 #define OMAP4_CM_STATICDEP 0x0004 -int omap4_cm_init(void); +int omap4_cm_init(const struct omap_prcm_init_data *data); #endif diff --git a/arch/arm/mach-omap2/cm_common.c b/arch/arm/mach-omap2/cm_common.c index 32af8fc749f0..ff24fdfb3bb2 100644 --- a/arch/arm/mach-omap2/cm_common.c +++ b/arch/arm/mach-omap2/cm_common.c @@ -20,6 +20,7 @@ #include "cm2xxx.h" #include "cm3xxx.h" +#include "cm33xx.h" #include "cm44xx.h" #include "clock.h" @@ -37,6 +38,7 @@ void __iomem *cm_base; void __iomem *cm2_base; #define CM_NO_CLOCKS 0x1 +#define CM_SINGLE_INSTANCE 0x2 /** * omap2_set_globals_cm - set the CM/CM2 base addresses (for early use) @@ -218,21 +220,32 @@ int cm_unregister(struct cm_ll_data *cld) return 0; } -static struct omap_prcm_init_data cm_data = { +#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \ + defined(CONFIG_SOC_DRA7XX) +static struct omap_prcm_init_data cm_data __initdata = { .index = TI_CLKM_CM, + .init = omap4_cm_init, }; -static struct omap_prcm_init_data cm2_data = { +static struct omap_prcm_init_data cm2_data __initdata = { .index = TI_CLKM_CM2, + .init = omap4_cm_init, }; +#endif -static struct omap_prcm_init_data omap2_prcm_data = { +#ifdef CONFIG_ARCH_OMAP2 +static struct omap_prcm_init_data omap2_prcm_data __initdata = { .index = TI_CLKM_CM, - .flags = CM_NO_CLOCKS, + .init = omap2xxx_cm_init, + .flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE, }; +#endif -static struct omap_prcm_init_data omap3_cm_data = { +#ifdef CONFIG_ARCH_OMAP3 +static struct omap_prcm_init_data omap3_cm_data __initdata = { .index = TI_CLKM_CM, + .init = omap3xxx_cm_init, + .flags = CM_SINGLE_INSTANCE, /* * IVA2 offset is a negative value, must offset the cm_base address @@ -240,28 +253,53 @@ static struct omap_prcm_init_data omap3_cm_data = { */ .offset = -OMAP3430_IVA2_MOD, }; +#endif -static struct omap_prcm_init_data am3_prcm_data = { +#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_TI81XX) +static struct omap_prcm_init_data am3_prcm_data __initdata = { .index = TI_CLKM_CM, - .flags = CM_NO_CLOCKS, + .flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE, + .init = am33xx_cm_init, }; +#endif -static struct omap_prcm_init_data am4_prcm_data = { +#ifdef CONFIG_SOC_AM43XX +static struct omap_prcm_init_data am4_prcm_data __initdata = { .index = TI_CLKM_CM, - .flags = CM_NO_CLOCKS, + .flags = CM_NO_CLOCKS | CM_SINGLE_INSTANCE, + .init = omap4_cm_init, }; +#endif -static const struct of_device_id omap_cm_dt_match_table[] = { +static const struct of_device_id omap_cm_dt_match_table[] __initconst = { +#ifdef CONFIG_ARCH_OMAP2 { .compatible = "ti,omap2-prcm", .data = &omap2_prcm_data }, +#endif +#ifdef CONFIG_ARCH_OMAP3 { .compatible = "ti,omap3-cm", .data = &omap3_cm_data }, +#endif +#ifdef CONFIG_ARCH_OMAP4 { .compatible = "ti,omap4-cm1", .data = &cm_data }, { .compatible = "ti,omap4-cm2", .data = &cm2_data }, +#endif +#ifdef CONFIG_SOC_OMAP5 { .compatible = "ti,omap5-cm-core-aon", .data = &cm_data }, { .compatible = "ti,omap5-cm-core", .data = &cm2_data }, +#endif +#ifdef CONFIG_SOC_DRA7XX { .compatible = "ti,dra7-cm-core-aon", .data = &cm_data }, { .compatible = "ti,dra7-cm-core", .data = &cm2_data }, +#endif +#ifdef CONFIG_SOC_AM33XX { .compatible = "ti,am3-prcm", .data = &am3_prcm_data }, +#endif +#ifdef CONFIG_SOC_AM43XX { .compatible = "ti,am4-prcm", .data = &am4_prcm_data }, +#endif +#ifdef CONFIG_SOC_TI81XX + { .compatible = "ti,dm814-prcm", .data = &am3_prcm_data }, + { .compatible = "ti,dm816-prcm", .data = &am3_prcm_data }, +#endif { } }; @@ -293,6 +331,12 @@ int __init omap2_cm_base_init(void) cm2_base = mem + data->offset; data->mem = mem; + + data->np = np; + + if (data->init && (data->flags & CM_SINGLE_INSTANCE || + (cm_base && cm2_base))) + data->init(data); } return 0; diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c index 4aed22dbe558..2c0e07ed6b99 100644 --- a/arch/arm/mach-omap2/cminst44xx.c +++ b/arch/arm/mach-omap2/cminst44xx.c @@ -514,9 +514,8 @@ static struct cm_ll_data omap4xxx_cm_ll_data = { .module_disable = &omap4_cminst_module_disable, }; -int __init omap4_cm_init(void) +int __init omap4_cm_init(const struct omap_prcm_init_data *data) { - omap2_cm_base_init(); omap_cm_base_init(); return cm_register(&omap4xxx_cm_ll_data); diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 7632dfead166..c3fa739ab4c8 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -387,7 +387,6 @@ void __init omap2420_init_early(void) omap2_control_base_init(); omap2xxx_check_revision(); omap2_prcm_base_init(); - omap2xxx_cm_init(); omap2xxx_voltagedomains_init(); omap242x_powerdomains_init(); omap242x_clockdomains_init(); @@ -414,7 +413,6 @@ void __init omap2430_init_early(void) omap2_control_base_init(); omap2xxx_check_revision(); omap2_prcm_base_init(); - omap2xxx_cm_init(); omap2xxx_voltagedomains_init(); omap243x_powerdomains_init(); omap243x_clockdomains_init(); @@ -454,8 +452,11 @@ void __init omap3_init_early(void) omap3xxx_check_revision(); omap3xxx_check_features(); omap2_prcm_base_init(); - omap3xxx_prm_init(NULL); - omap3xxx_cm_init(); + /* XXX: remove these once OMAP3 is DT only */ + if (!of_have_populated_dt()) { + omap3xxx_prm_init(NULL); + omap3xxx_cm_init(NULL); + } omap3xxx_voltagedomains_init(); omap3xxx_powerdomains_init(); omap3xxx_clockdomains_init(); @@ -553,7 +554,6 @@ void __init ti814x_init_early(void) omap3xxx_check_revision(); ti81xx_check_features(); omap2_prcm_base_init(); - am33xx_cm_init(); omap3xxx_voltagedomains_init(); omap3xxx_powerdomains_init(); ti81xx_clockdomains_init(); @@ -571,7 +571,6 @@ void __init ti816x_init_early(void) omap3xxx_check_revision(); ti81xx_check_features(); omap2_prcm_base_init(); - am33xx_cm_init(); omap3xxx_voltagedomains_init(); omap3xxx_powerdomains_init(); ti81xx_clockdomains_init(); @@ -591,7 +590,6 @@ void __init am33xx_init_early(void) omap3xxx_check_revision(); am33xx_check_features(); omap2_prcm_base_init(); - am33xx_cm_init(); am33xx_powerdomains_init(); am33xx_clockdomains_init(); am33xx_hwmod_init(); @@ -614,7 +612,6 @@ void __init am43xx_init_early(void) omap3xxx_check_revision(); am33xx_check_features(); omap2_prcm_base_init(); - omap4_cm_init(); am43xx_powerdomains_init(); am43xx_clockdomains_init(); am43xx_hwmod_init(); @@ -640,7 +637,6 @@ void __init omap4430_init_early(void) omap4xxx_check_revision(); omap4xxx_check_features(); omap2_prcm_base_init(); - omap4_cm_init(); omap4_pm_init_early(); omap44xx_voltagedomains_init(); omap44xx_powerdomains_init(); @@ -670,7 +666,6 @@ void __init omap5_init_early(void) omap4_pm_init_early(); omap2_prcm_base_init(); omap5xxx_check_revision(); - omap4_cm_init(); omap54xx_voltagedomains_init(); omap54xx_powerdomains_init(); omap54xx_clockdomains_init(); @@ -697,7 +692,6 @@ void __init dra7xx_init_early(void) omap4_pm_init_early(); omap2_prcm_base_init(); dra7xxx_check_revision(); - omap4_cm_init(); dra7xx_powerdomains_init(); dra7xx_clockdomains_init(); dra7xx_hwmod_init(); diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index a834124c5309..3e932b8b8ce9 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -770,7 +770,13 @@ int __init omap2_prm_base_init(void) int __init omap2_prcm_base_init(void) { - return omap2_prm_base_init(); + int ret; + + ret = omap2_prm_base_init(); + if (ret) + return ret; + + return omap2_cm_base_init(); } /** -- cgit v1.2.3