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authorTony Lindgren <tony@atomide.com>2009-05-28 15:45:14 -0700
committerTony Lindgren <tony@atomide.com>2009-05-28 15:45:14 -0700
commitcd07ecc828486e5887113c7dc4d9f9022145811b (patch)
treef3950d6077a794d4500244b2f372c6912af15eec /arch/arm/plat-omap/sram.c
parent4c50d22a0cf240918d53afbf9a8416a9d93aacee (diff)
parentb04e8975e70d9b2bc27c017f92b356b312692544 (diff)
downloadblackbird-op-linux-cd07ecc828486e5887113c7dc4d9f9022145811b.tar.gz
blackbird-op-linux-cd07ecc828486e5887113c7dc4d9f9022145811b.zip
Merge branch 'omap4' into for-next
Diffstat (limited to 'arch/arm/plat-omap/sram.c')
-rw-r--r--arch/arm/plat-omap/sram.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index bd44d1a9df9c..a5b9bcd6b108 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -6,6 +6,9 @@
* Copyright (C) 2005 Nokia Corporation
* Written by Tony Lindgren <tony@atomide.com>
*
+ * Copyright (C) 2009 Texas Instruments
+ * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
@@ -44,6 +47,8 @@
#define OMAP3_SRAM_VA 0xd7000000
#define OMAP3_SRAM_PUB_PA 0x40208000
#define OMAP3_SRAM_PUB_VA 0xd7008000
+#define OMAP4_SRAM_PA 0x40200000 /*0x402f0000*/
+#define OMAP4_SRAM_VA 0xd7000000 /*0xd70f0000*/
#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
#define SRAM_BOOTLOADER_SZ 0x00
@@ -87,6 +92,10 @@ static int is_sram_locked(void)
{
int type = 0;
+ if (cpu_is_omap44xx())
+ /* Not yet supported */
+ return 0;
+
if (cpu_is_omap242x())
type = omap_rev() & OMAP2_DEVICETYPE_MASK;
@@ -135,6 +144,10 @@ void __init omap_detect_sram(void)
omap_sram_base = OMAP3_SRAM_VA;
omap_sram_start = OMAP3_SRAM_PA;
omap_sram_size = 0x10000; /* 64K */
+ } else if (cpu_is_omap44xx()) {
+ omap_sram_base = OMAP4_SRAM_VA;
+ omap_sram_start = OMAP4_SRAM_PA;
+ omap_sram_size = 0x8000; /* 32K */
} else {
omap_sram_base = OMAP2_SRAM_VA;
omap_sram_start = OMAP2_SRAM_PA;
@@ -212,6 +225,12 @@ void __init omap_map_sram(void)
omap_sram_io_desc[0].type = MT_MEMORY_NONCACHED;
}
+ if (cpu_is_omap44xx()) {
+ omap_sram_io_desc[0].virtual = OMAP4_SRAM_VA;
+ base = OMAP4_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));
@@ -401,6 +420,8 @@ int __init omap_sram_init(void)
omap243x_sram_init();
else if (cpu_is_omap34xx())
omap34xx_sram_init();
+ else if (cpu_is_omap44xx())
+ omap34xx_sram_init(); /* FIXME: */
return 0;
}
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