[PATCH] freescale-mx35-3-stack: support 256 MiB RAM
Sascha Hauer
s.hauer at pengutronix.de
Mon Jan 23 04:26:52 EST 2012
On Fri, Jan 20, 2012 at 04:04:28PM +0100, Thomas Mayer wrote:
> Hi,
>
> is there a reason why this patch was never applied?
> It works fine for us.
Yeah, the reason probably is that I forgot to apply it.
It does not apply anymore. Can you check this updated version?
8<------------------------------------------------
ARM i.MX freescale-mx35-3-stack: support 256 MiB RAM
Extend DCD table and low level init routines. Add barebox SDRAM
device. Also, fix the memory size for bank 0 to 128MB. It was
accidently changed to 124MB here:
commit f928efa818adfe56a08350569a9b0f3c2fb791d2
Author: Sascha Hauer <s.hauer at pengutronix.de>
Date: Tue Jul 19 09:58:32 2011 +0200
add a add_mem_device function
Add a helper function for boards to register their memory
devices. This makes the board code smaller and also helps
getting rid of map_base and struct memory_platform_data.
And switch all of the memory to it
Signed-off-by: Roman Fietze <roman.fietze at telemotive.de>
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
arch/arm/boards/freescale-mx35-3-stack/3stack.c | 3 +-
.../boards/freescale-mx35-3-stack/flash_header.c | 26 +++++++++++++++++++-
.../boards/freescale-mx35-3-stack/lowlevel_init.S | 17 +++++++-----
3 files changed, 37 insertions(+), 9 deletions(-)
diff --git a/arch/arm/boards/freescale-mx35-3-stack/3stack.c b/arch/arm/boards/freescale-mx35-3-stack/3stack.c
index 030a1a7..cc27af3 100644
--- a/arch/arm/boards/freescale-mx35-3-stack/3stack.c
+++ b/arch/arm/boards/freescale-mx35-3-stack/3stack.c
@@ -130,7 +130,8 @@ static void set_board_rev(int rev)
static int f3s_mem_init(void)
{
- arm_add_mem_device("ram0", IMX_SDRAM_CS0, 124 * 1024 * 1024);
+ arm_add_mem_device("ram0", IMX_SDRAM_CS0, 128 * 1024 * 1024);
+ arm_add_mem_device("ram1", IMX_SDRAM_CS1, 128 * 1024 * 1024);
return 0;
}
diff --git a/arch/arm/boards/freescale-mx35-3-stack/flash_header.c b/arch/arm/boards/freescale-mx35-3-stack/flash_header.c
index 4bee797..92f2142 100644
--- a/arch/arm/boards/freescale-mx35-3-stack/flash_header.c
+++ b/arch/arm/boards/freescale-mx35-3-stack/flash_header.c
@@ -13,23 +13,47 @@ struct imx_dcd_entry __dcd_entry_section dcd_entry[] = {
{ .ptr_type = 4, .addr = 0xb8002050, .val = 0x0000d843, },
{ .ptr_type = 4, .addr = 0xB8002054, .val = 0x22252521, },
{ .ptr_type = 4, .addr = 0xB8002058, .val = 0x22220a00, },
+
{ .ptr_type = 4, .addr = 0xB8001010, .val = 0x00000304, },
{ .ptr_type = 4, .addr = 0xB8001010, .val = 0x0000030C, },
+
{ .ptr_type = 4, .addr = 0xB8001004, .val = 0x007ffc3f, },
+ { .ptr_type = 4, .addr = 0xB800100C, .val = 0x007ffc3f, },
+
{ .ptr_type = 4, .addr = 0xB8001000, .val = 0x92220000, },
+ { .ptr_type = 4, .addr = 0xB8001008, .val = 0x92220000, },
+
{ .ptr_type = 4, .addr = 0x80000400, .val = 0x12345678, },
+ { .ptr_type = 4, .addr = 0x90000400, .val = 0x12345678, },
+
{ .ptr_type = 4, .addr = 0xB8001000, .val = 0xA2220000, },
+ { .ptr_type = 4, .addr = 0xB8001008, .val = 0xA2220000, },
+
{ .ptr_type = 4, .addr = 0x80000000, .val = 0x87654321, },
+ { .ptr_type = 4, .addr = 0x90000000, .val = 0x87654321, },
+
{ .ptr_type = 4, .addr = 0x80000000, .val = 0x87654321, },
+ { .ptr_type = 4, .addr = 0x90000000, .val = 0x87654321, },
+
{ .ptr_type = 4, .addr = 0xB8001000, .val = 0xB2220000, },
+ { .ptr_type = 4, .addr = 0xB8001008, .val = 0xB2220000, },
+
{ .ptr_type = 1, .addr = 0x80000233, .val = 0xda, },
+ { .ptr_type = 1, .addr = 0x90000233, .val = 0xda, },
+
{ .ptr_type = 1, .addr = 0x82000780, .val = 0xda, },
+ { .ptr_type = 1, .addr = 0x92000780, .val = 0xda, },
+
{ .ptr_type = 1, .addr = 0x82000400, .val = 0xda, },
+ { .ptr_type = 1, .addr = 0x92000400, .val = 0xda, },
+
{ .ptr_type = 4, .addr = 0xB8001000, .val = 0x82226080, },
+ { .ptr_type = 4, .addr = 0xB8001008, .val = 0x82226080, },
+
{ .ptr_type = 4, .addr = 0xB8001004, .val = 0x007ffc3f, },
{ .ptr_type = 4, .addr = 0xB800100C, .val = 0x007ffc3f, },
+
{ .ptr_type = 4, .addr = 0xB8001010, .val = 0x00000304, },
- { .ptr_type = 4, .addr = 0xB8001008, .val = 0x00002000, },
};
diff --git a/arch/arm/boards/freescale-mx35-3-stack/lowlevel_init.S b/arch/arm/boards/freescale-mx35-3-stack/lowlevel_init.S
index 1680579..413e04a 100644
--- a/arch/arm/boards/freescale-mx35-3-stack/lowlevel_init.S
+++ b/arch/arm/boards/freescale-mx35-3-stack/lowlevel_init.S
@@ -28,8 +28,8 @@
#include "board-mx35_3stack.h"
#define CSD0_BASE_ADDR 0x80000000
-#define ESDCTL_BASE_ADDR 0xB8001000
#define CSD1_BASE_ADDR 0x90000000
+#define ESDCTL_BASE_ADDR 0xB8001000
#define writel(val, reg) \
ldr r0, =reg; \
@@ -122,9 +122,9 @@ board_init_lowlevel:
str r1, [r0, #CCM_CGR1]
/* Skip SDRAM initialization if we run from RAM */
- cmp pc, #0x80000000
+ cmp pc, #CSD0_BASE_ADDR
bls 1f
- cmp pc, #0x90000000
+ cmp pc, #CSD1_BASE_ADDR
bhi 1f
mov pc, r10
@@ -138,14 +138,17 @@ board_init_lowlevel:
/* ip(r12) has used to save lr register in upper calling */
mov fp, lr
+ /* setup bank 0 */
mov r5, #0x00
mov r2, #0x00
mov r1, #CSD0_BASE_ADDR
bl setup_sdram_bank
- cmp r3, #0x0
- orreq r5, r5, #1
- eorne r2, r2, #0x1
- blne setup_sdram_bank
+
+ /* setup bank 1 */
+ mov r5, #0x00
+ mov r2, #0x00
+ mov r1, #CSD1_BASE_ADDR
+ bl setup_sdram_bank
mov lr, fp
--
1.7.8.3
--
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