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mx28: Let dram_init be common for mx28

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Let dram_init function be a common function, so that other mx28 boards
can reuse it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
This commit is contained in:
Fabio Estevam 2011-12-20 05:46:33 +00:00 committed by Albert ARIBAUD
parent 5cb525f3d2
commit 5bcc6a8901
3 changed files with 24 additions and 17 deletions
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21
arch/arm/cpu/arm926ejs/mx28/mx28.c
View File

@ -260,6 +260,27 @@ void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
} }
#endif #endif
#define HW_DIGCTRL_SCRATCH0 0x8001c280
#define HW_DIGCTRL_SCRATCH1 0x8001c290
int mx28_dram_init(void)
{
uint32_t sz[2];
sz[0] = readl(HW_DIGCTRL_SCRATCH0);
sz[1] = readl(HW_DIGCTRL_SCRATCH1);
if (sz[0] != sz[1]) {
printf("MX28:\n"
"Error, the RAM size in HW_DIGCTRL_SCRATCH0 and\n"
"HW_DIGCTRL_SCRATCH1 is not the same. Please\n"
"verify these two registers contain valid RAM size!\n");
hang();
}
gd->ram_size = sz[0];
return 0;
}
U_BOOT_CMD( U_BOOT_CMD(
clocks, CONFIG_SYS_MAXARGS, 1, do_mx28_showclocks, clocks, CONFIG_SYS_MAXARGS, 1, do_mx28_showclocks,
"display clocks", "display clocks",

2
arch/arm/include/asm/arch-mx28/sys_proto.h
View File

@ -35,4 +35,6 @@ void mx28_common_spl_init(const iomux_cfg_t *iomux_setup,
const unsigned int iomux_size); const unsigned int iomux_size);
#endif #endif
int mx28_dram_init(void);
#endif /* __MX28_H__ */ #endif /* __MX28_H__ */

18
board/denx/m28evk/m28evk.c
View File

@ -70,25 +70,9 @@ int board_init(void)
return 0; return 0;
} }
#define HW_DIGCTRL_SCRATCH0 0x8001c280
#define HW_DIGCTRL_SCRATCH1 0x8001c290
int dram_init(void) int dram_init(void)
{ {
uint32_t sz[2]; return mx28_dram_init();
sz[0] = readl(HW_DIGCTRL_SCRATCH0);
sz[1] = readl(HW_DIGCTRL_SCRATCH1);
if (sz[0] != sz[1]) {
printf("MX28:\n"
"Error, the RAM size in HW_DIGCTRL_SCRATCH0 and\n"
"HW_DIGCTRL_SCRATCH1 is not the same. Please\n"
"verify these two registers contain valid RAM size!\n");
hang();
}
gd->ram_size = sz[0];
return 0;
} }
#ifdef CONFIG_CMD_MMC #ifdef CONFIG_CMD_MMC