From b4c0a8a73b6a767550617339fb9129fbbebf82e3 Mon Sep 17 00:00:00 2001 From: Vaibhav Bedia Date: Mon, 5 Mar 2012 16:11:01 -0800 Subject: [PATCH] ARM: OMAP: sram: Add am33xx SRAM support (minimal) Update SRAM start & size for am33xx SoC's. Note: cpu_is_34xx() is true for am33xx also. Doing cpu_is_am33xx() check after cpu_is_34xx() will not achieve what we want due to the above reason. Hence cpu_is_am33xx() is done before cpu_is_34xx() Signed-off-by: Vaibhav Bedia Signed-off-by: Afzal Mohammed Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/plat/sram.h | 1 + arch/arm/plat-omap/sram.c | 14 ++++++++++++-- 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/arch/arm/plat-omap/include/plat/sram.h b/arch/arm/plat-omap/include/plat/sram.h index 75aa1b2bef51..227ae2657554 100644 --- a/arch/arm/plat-omap/include/plat/sram.h +++ b/arch/arm/plat-omap/include/plat/sram.h @@ -101,4 +101,5 @@ static inline void omap_push_sram_idle(void) {} #else #define OMAP4_SRAM_PA 0x40300000 #endif +#define AM33XX_SRAM_PA 0x40300000 #endif diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index 4243bdcc87bc..596f2224e15a 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -86,7 +86,7 @@ static int is_sram_locked(void) __raw_writel(0xCFDE, OMAP24XX_VA_READPERM0); /* all i-read */ __raw_writel(0xCFDE, OMAP24XX_VA_WRITEPERM0); /* all i-write */ } - if (cpu_is_omap34xx()) { + if (cpu_is_omap34xx() && !cpu_is_am33xx()) { __raw_writel(0xFFFF, OMAP34XX_VA_REQINFOPERM0); /* all q-vects */ __raw_writel(0xFFFF, OMAP34XX_VA_READPERM0); /* all i-read */ __raw_writel(0xFFFF, OMAP34XX_VA_WRITEPERM0); /* all i-write */ @@ -124,7 +124,10 @@ static void __init omap_detect_sram(void) omap_sram_size = 0x800; /* 2K */ } } else { - if (cpu_is_omap34xx()) { + if (cpu_is_am33xx()) { + omap_sram_start = AM33XX_SRAM_PA; + omap_sram_size = 0x10000; /* 64K */ + } else if (cpu_is_omap34xx()) { omap_sram_start = OMAP3_SRAM_PA; omap_sram_size = 0x10000; /* 64K */ } else if (cpu_is_omap44xx()) { @@ -368,6 +371,11 @@ static inline int omap34xx_sram_init(void) return 0; } +static inline int am33xx_sram_init(void) +{ + return 0; +} + int __init omap_sram_init(void) { omap_detect_sram(); @@ -379,6 +387,8 @@ int __init omap_sram_init(void) omap242x_sram_init(); else if (cpu_is_omap2430()) omap243x_sram_init(); + else if (cpu_is_am33xx()) + am33xx_sram_init(); else if (cpu_is_omap34xx()) omap34xx_sram_init(); -- 2.11.0