From: Dasu, Karthik P <[EMAIL PROTECTED]>
Add SRAM support for 3430
Patch modified by Tony to leave out new functions,
they will be added later in a separate patch.
Signed-off-by: Karthik Dasu<[EMAIL PROTECTED]>
Acked-by: Richard Woodruff <[EMAIL PROTECTED]>
Acked-by: Vikram Pandita <[EMAIL PROTECTED]>
Signed-off-by: Tony Lindgren <[EMAIL PROTECTED]>
---
arch/arm/plat-omap/sram.c | 56 +++++++++++++++++++++++++++++++++++++-------
1 files changed, 47 insertions(+), 9 deletions(-)
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 6b1ce47..1186d2b 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -39,6 +39,10 @@
#define OMAP2_SRAM_PUB_PA 0x4020f800
#define OMAP2_SRAM_VA VMALLOC_END
#define OMAP2_SRAM_PUB_VA (VMALLOC_END + 0x800)
+#define OMAP3_SRAM_PA 0x40200000
+#define OMAP3_SRAM_VA 0xd7000000
+#define OMAP3_SRAM_PUB_PA 0x40208000
+#define OMAP3_SRAM_PUB_VA 0xd7008000
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
#define SRAM_BOOTLOADER_SZ 0x00
@@ -49,6 +53,14 @@
#define OMAP24XX_VA_REQINFOPERM0 IO_ADDRESS(0x68005048)
#define OMAP24XX_VA_READPERM0 IO_ADDRESS(0x68005050)
#define OMAP24XX_VA_WRITEPERM0 IO_ADDRESS(0x68005058)
+
+#define OMAP34XX_VA_REQINFOPERM0 IO_ADDRESS(0x68012848)
+#define OMAP34XX_VA_READPERM0 IO_ADDRESS(0x68012850)
+#define OMAP34XX_VA_WRITEPERM0 IO_ADDRESS(0x68012858)
+#define OMAP34XX_VA_ADDR_MATCH2 IO_ADDRESS(0x68012880)
+#define OMAP34XX_VA_SMS_RG_ATT0 IO_ADDRESS(0x6C000048)
+#define OMAP34XX_VA_CONTROL_STAT IO_ADDRESS(0x480022F0)
+
#define GP_DEVICE 0x300
#define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
@@ -102,6 +114,13 @@ 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()) {
+ __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 */
+ __raw_writel(0x0, OMAP34XX_VA_ADDR_MATCH2);
+ __raw_writel(0xFFFFFFFF, OMAP34XX_VA_SMS_RG_ATT0);
+ }
return 0;
} else
return 1; /* assume locked with no PPA or security driver */
@@ -119,16 +138,28 @@ void __init omap_detect_sram(void)
if (cpu_class_is_omap2()) {
if (is_sram_locked()) {
- omap_sram_base = OMAP2_SRAM_PUB_VA;
- omap_sram_start = OMAP2_SRAM_PUB_PA;
- omap_sram_size = 0x800; /* 2K */
+ if (cpu_is_omap34xx()) {
+ omap_sram_base = OMAP3_SRAM_PUB_VA;
+ omap_sram_start = OMAP3_SRAM_PUB_PA;
+ omap_sram_size = 0x8000; /* 32K */
+ } else {
+ omap_sram_base = OMAP2_SRAM_PUB_VA;
+ omap_sram_start = OMAP2_SRAM_PUB_PA;
+ omap_sram_size = 0x800; /* 2K */
+ }
} else {
- omap_sram_base = OMAP2_SRAM_VA;
- omap_sram_start = OMAP2_SRAM_PA;
- if (cpu_is_omap242x())
- omap_sram_size = 0xa0000; /* 640K */
- else if (cpu_is_omap243x() || cpu_is_omap34xx())
+ if (cpu_is_omap34xx()) {
+ omap_sram_base = OMAP3_SRAM_VA;
+ omap_sram_start = OMAP3_SRAM_PA;
omap_sram_size = 0x10000; /* 64K */
+ } else {
+ omap_sram_base = OMAP2_SRAM_VA;
+ omap_sram_start = OMAP2_SRAM_PA;
+ if (cpu_is_omap242x())
+ omap_sram_size = 0xa0000; /* 640K */
+ else if (cpu_is_omap243x())
+ omap_sram_size = 0x10000; /* 64K */
+ }
}
} else {
omap_sram_base = OMAP1_SRAM_VA;
@@ -174,7 +205,7 @@ void __init omap_map_sram(void)
if (omap_sram_size == 0)
return;
- if (cpu_class_is_omap2()) {
+ if (cpu_is_omap24xx()) {
omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
base = OMAP2_SRAM_PA;
@@ -182,6 +213,13 @@ void __init omap_map_sram(void)
omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
}
+ if (cpu_is_omap34xx()) {
+ omap_sram_io_desc[0].virtual = OMAP3_SRAM_VA;
+ base = OMAP3_SRAM_PA;
+ base = ROUND_DOWN(base, PAGE_SIZE);
+ omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
+ }
+
omap_sram_io_desc[0].length = 1024 * 1024; /* Use section desc */
iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
--
1.5.3.6
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