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MX35: MX35PDK: support additional RAM on CSD1

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Modules on mx35pdk have additional 128MB
memory connected to CSD1.

Signed-off-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Stefano Babic 2011-08-02 14:42:36 +02:00 committed by Albert ARIBAUD
parent 9691c5b96d
commit 6b5acfc121
3 changed files with 23 additions and 9 deletions
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9
board/freescale/mx35pdk/lowlevel_init.S
View File

@ -193,10 +193,11 @@
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
mov r5, #0x00
mov r2, #0x00
mov r1, #CSD1_BASE_ADDR
bl setup_sdram_bank
mov lr, fp

17
board/freescale/mx35pdk/mx35pdk.c
View File

@ -52,12 +52,25 @@ DECLARE_GLOBAL_DATA_PTR;
int dram_init(void)
{
gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1,
PHYS_SDRAM_1_SIZE);
u32 size1, size2;
size1 = get_ram_size((void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
size2 = get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
gd->ram_size = size1 + size2;
return 0;
}
void dram_init_banksize(void)
{
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
}
static void setup_iomux_i2c(void)
{
int pad;

6
include/configs/mx35pdk.h
View File

@ -173,11 +173,11 @@
/*
* Physical Memory Map
*/
#define CONFIG_NR_DRAM_BANKS 1
#define CONFIG_NR_DRAM_BANKS 2
#define PHYS_SDRAM_1 CSD0_BASE_ADDR
#define PHYS_SDRAM_1_SIZE (128 * 1024 * 1024)
#define iomem_valid_addr(addr, size) \
(addr >= PHYS_SDRAM_1 && addr <= (PHYS_SDRAM_1 + PHYS_SDRAM_1_SIZE))
#define PHYS_SDRAM_2 CSD1_BASE_ADDR
#define PHYS_SDRAM_2_SIZE (128 * 1024 * 1024)
#define CONFIG_SYS_SDRAM_BASE CSD0_BASE_ADDR
#define CONFIG_SYS_INIT_RAM_ADDR (IRAM_BASE_ADDR + 0x10000)