From bb256f803c9f620eb5a7d1c02e53360392cffbdd Mon Sep 17 00:00:00 2001 From: Afzal Mohammed Date: Mon, 27 May 2013 20:06:53 +0530 Subject: [PATCH 1/4] ARM: OMAP2+: AM43x: basic dt support Describe minimal DT boot machine details for AM43x based SoC's. AM43x SoC's are ARM Cortex-A9 based with one core. AM43x is similar to AM335x w.r.t L4 PER/WKUP memory map. AM43x has a sync timer, here that is being used as clocksource, while 1ms dmtimer as clockevent. Signed-off-by: Ankur Kishore Signed-off-by: Afzal Mohammed Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-generic.c | 16 ++++++++++++++++ arch/arm/mach-omap2/timer.c | 2 +- 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 88aa6b1835c3..e5fbfed69aa2 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -185,3 +185,19 @@ DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)") .restart = omap44xx_restart, MACHINE_END #endif + +#ifdef CONFIG_SOC_AM43XX +static const char *am43_boards_compat[] __initdata = { + "ti,am43", + NULL, +}; + +DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)") + .map_io = am33xx_map_io, + .init_early = am43xx_init_early, + .init_irq = omap_gic_of_init, + .init_machine = omap_generic_init, + .init_time = omap3_sync32k_timer_init, + .dt_compat = am43_boards_compat, +MACHINE_END +#endif diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index f8b23b8040d9..3bdb0fb02028 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -582,7 +582,7 @@ OMAP_SYS_32K_TIMER_INIT(2, 1, "timer_32k_ck", "ti,timer-alwon", 2, "timer_sys_ck", NULL); #endif /* CONFIG_ARCH_OMAP2 */ -#ifdef CONFIG_ARCH_OMAP3 +#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_AM43XX) OMAP_SYS_32K_TIMER_INIT(3, 1, "timer_32k_ck", "ti,timer-alwon", 2, "timer_sys_ck", NULL); OMAP_SYS_32K_TIMER_INIT(3_secure, 12, "secure_32k_fck", "ti,timer-secure", From a5f93d9dad9c203e0715206ef60a505013561df6 Mon Sep 17 00:00:00 2001 From: Aida Mynzhasova Date: Thu, 30 May 2013 14:21:01 +0400 Subject: [PATCH 2/4] ARM: OMAP2: TI81XX: id: Add cpu id for TI816x ES2.0 and ES2.1 Currently omap3xxx_check_revision() detects ES1.0 and ES1.1 only, this patch extends it by adding ES2.0 and ES2.1 versions support. Signed-off-by: Aida Mynzhasova Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/id.c | 11 +++++++++-- arch/arm/mach-omap2/soc.h | 2 ++ 2 files changed, 11 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 74f71abcd50e..9e5c7cb4a81a 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -407,11 +407,18 @@ void __init omap3xxx_check_revision(void) cpu_rev = "1.0"; break; case 1: - /* FALLTHROUGH */ - default: omap_revision = TI8168_REV_ES1_1; cpu_rev = "1.1"; break; + case 2: + omap_revision = TI8168_REV_ES2_0; + cpu_rev = "2.0"; + break; + case 3: + /* FALLTHROUGH */ + default: + omap_revision = TI8168_REV_ES2_1; + cpu_rev = "2.1"; } break; case 0xb944: diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h index 3cefc492b758..9cd9414a0afd 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -403,6 +403,8 @@ IS_OMAP_TYPE(3430, 0x3430) #define TI816X_CLASS 0x81600034 #define TI8168_REV_ES1_0 TI816X_CLASS #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8)) +#define TI8168_REV_ES2_0 (TI816X_CLASS | (0x2 << 8)) +#define TI8168_REV_ES2_1 (TI816X_CLASS | (0x3 << 8)) #define TI814X_CLASS 0x81400034 #define TI8148_REV_ES1_0 TI814X_CLASS From c3ed359c66d49ed59139c61a6284452e94efb215 Mon Sep 17 00:00:00 2001 From: Aida Mynzhasova Date: Thu, 30 May 2013 19:04:50 +0400 Subject: [PATCH 3/4] ARM: OMAP: TI816X: add powerdomains for TI816x This patch adds required structures for powerdomain initialization on the ti816x. It is impossible to use omap3430 structures in order to initialize powerdomains on ti816x, because there are big differences between PRCM module base address offsets on these CPUs. Signed-off-by: Aida Mynzhasova Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/powerdomains3xxx_data.c | 62 +++++++++++++++++++++ arch/arm/mach-omap2/prcm-common.h | 11 ++++ 2 files changed, 73 insertions(+) diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c index f0e14e9efe5a..e2d4bd804523 100644 --- a/arch/arm/mach-omap2/powerdomains3xxx_data.c +++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c @@ -336,6 +336,54 @@ static struct powerdomain dpll5_pwrdm = { .voltdm = { .name = "core" }, }; +static struct powerdomain device_81xx_pwrdm = { + .name = "device_pwrdm", + .prcm_offs = TI81XX_PRM_DEVICE_MOD, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain active_816x_pwrdm = { + .name = "active_pwrdm", + .prcm_offs = TI816X_PRM_ACTIVE_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain default_816x_pwrdm = { + .name = "default_pwrdm", + .prcm_offs = TI81XX_PRM_DEFAULT_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + +static struct powerdomain ivahd0_816x_pwrdm = { + .name = "ivahd0_pwrdm", + .prcm_offs = TI816X_PRM_IVAHD0_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain ivahd1_816x_pwrdm = { + .name = "ivahd1_pwrdm", + .prcm_offs = TI816X_PRM_IVAHD1_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain ivahd2_816x_pwrdm = { + .name = "ivahd2_pwrdm", + .prcm_offs = TI816X_PRM_IVAHD2_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "mpu_iva" }, +}; + +static struct powerdomain sgx_816x_pwrdm = { + .name = "sgx_pwrdm", + .prcm_offs = TI816X_PRM_SGX_MOD, + .pwrsts = PWRSTS_OFF_ON, + .voltdm = { .name = "core" }, +}; + /* As powerdomains are added or removed above, this list must also be changed */ static struct powerdomain *powerdomains_omap3430_common[] __initdata = { &wkup_omap2_pwrdm, @@ -393,6 +441,17 @@ static struct powerdomain *powerdomains_am35x[] __initdata = { NULL }; +static struct powerdomain *powerdomains_ti81xx[] __initdata = { + &device_81xx_pwrdm, + &active_816x_pwrdm, + &default_816x_pwrdm, + &ivahd0_816x_pwrdm, + &ivahd1_816x_pwrdm, + &ivahd2_816x_pwrdm, + &sgx_816x_pwrdm, + NULL +}; + void __init omap3xxx_powerdomains_init(void) { unsigned int rev; @@ -406,6 +465,9 @@ void __init omap3xxx_powerdomains_init(void) if (rev == AM35XX_REV_ES1_0 || rev == AM35XX_REV_ES1_1) { pwrdm_register_pwrdms(powerdomains_am35x); + } else if (rev == TI8168_REV_ES1_0 || rev == TI8168_REV_ES1_1 + || rev == TI8168_REV_ES2_0 || rev == TI8168_REV_ES2_1) { + pwrdm_register_pwrdms(powerdomains_ti81xx); } else { pwrdm_register_pwrdms(powerdomains_omap3430_common); diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index c7d355fafd24..ff1ac4a82a04 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -48,6 +48,17 @@ #define OMAP3430_NEON_MOD 0xb00 #define OMAP3430ES2_USBHOST_MOD 0xc00 +/* + * TI81XX PRM module offsets + */ +#define TI81XX_PRM_DEVICE_MOD 0x0000 +#define TI816X_PRM_ACTIVE_MOD 0x0a00 +#define TI81XX_PRM_DEFAULT_MOD 0x0b00 +#define TI816X_PRM_IVAHD0_MOD 0x0c00 +#define TI816X_PRM_IVAHD1_MOD 0x0d00 +#define TI816X_PRM_IVAHD2_MOD 0x0e00 +#define TI816X_PRM_SGX_MOD 0x0f00 + /* 24XX register bits shared between CM & PRM registers */ /* CM_FCLKEN1_CORE, CM_ICLKEN1_CORE, PM_WKEN1_CORE shared bits */ From 7bcad170154f1302aeeced4f236588091a261fbf Mon Sep 17 00:00:00 2001 From: Vaibhav Hiremath Date: Fri, 17 May 2013 15:43:41 +0530 Subject: [PATCH 4/4] ARM: OMAP3+: am33xx id: Add new am33xx specific function to check dev_feature Layout of DEV_FEATURE register (offset = 0x604) is different between TI81xx and AM33xx device, so create separate function which will check for features available on specific AM33xx SoC and set the flags accordingly. Signed-off-by: Vaibhav Hiremath Reviewed-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/control.h | 4 ++++ arch/arm/mach-omap2/id.c | 13 +++++++++++++ arch/arm/mach-omap2/io.c | 2 +- arch/arm/mach-omap2/soc.h | 1 + 4 files changed, 19 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h index 35d17a6ec06b..f7d7c2ef1b40 100644 --- a/arch/arm/mach-omap2/control.h +++ b/arch/arm/mach-omap2/control.h @@ -366,6 +366,10 @@ #define AM33XX_PWMSS1_TBCLKEN_SHIFT 1 #define AM33XX_PWMSS2_TBCLKEN_SHIFT 2 +/* DEV Feature register to identify AM33XX features */ +#define AM33XX_DEV_FEATURE 0x604 +#define AM33XX_SGX_MASK BIT(29) + /* CONTROL OMAP STATUS register to identify OMAP3 features */ #define OMAP3_CONTROL_OMAP_STATUS 0x044c diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 9e5c7cb4a81a..7335eb2bf3fa 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -304,6 +304,19 @@ void __init ti81xx_check_features(void) omap3_cpuinfo(); } +void __init am33xx_check_features(void) +{ + u32 status; + + omap_features = OMAP3_HAS_NEON; + + status = omap_ctrl_readl(AM33XX_DEV_FEATURE); + if (status & AM33XX_SGX_MASK) + omap_features |= OMAP3_HAS_SGX; + + omap3_cpuinfo(); +} + void __init omap3xxx_check_revision(void) { const char *cpu_rev; diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index f96215075b92..4c7367404b89 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -576,7 +576,7 @@ void __init am33xx_init_early(void) omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE)); omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE), NULL); omap3xxx_check_revision(); - ti81xx_check_features(); + am33xx_check_features(); am33xx_voltagedomains_init(); am33xx_powerdomains_init(); am33xx_clockdomains_init(); diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h index 9cd9414a0afd..8c616e436bc7 100644 --- a/arch/arm/mach-omap2/soc.h +++ b/arch/arm/mach-omap2/soc.h @@ -449,6 +449,7 @@ void omap4xxx_check_revision(void); void omap5xxx_check_revision(void); void omap3xxx_check_features(void); void ti81xx_check_features(void); +void am33xx_check_features(void); void omap4xxx_check_features(void); /*