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| author | Fabio Estevam <festevam@gmail.com> | 2011-12-20 05:46:33 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2012-01-16 08:40:09 +0100 |
| commit | 5bcc6a8901020ce22a996ef438cfc7be7a0c3995 (patch) | |
| tree | 261b44dc73a4b469a6a4846f9345e5474413e509 /arch | |
| parent | 5cb525f3d205d6696c4a42d5bfb9ec8c73543091 (diff) | |
| download | u-boot-imx-5bcc6a8901020ce22a996ef438cfc7be7a0c3995.zip u-boot-imx-5bcc6a8901020ce22a996ef438cfc7be7a0c3995.tar.gz u-boot-imx-5bcc6a8901020ce22a996ef438cfc7be7a0c3995.tar.bz2 | |
mx28: Let dram_init be common for mx28
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mx28/mx28.c | 21 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx28/sys_proto.h | 2 |
2 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/mx28/mx28.c b/arch/arm/cpu/arm926ejs/mx28/mx28.c index ad4fabd..da90360 100644 --- a/arch/arm/cpu/arm926ejs/mx28/mx28.c +++ b/arch/arm/cpu/arm926ejs/mx28/mx28.c @@ -260,6 +260,27 @@ void imx_get_mac_from_fuse(int dev_id, unsigned char *mac) } #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( clocks, CONFIG_SYS_MAXARGS, 1, do_mx28_showclocks, "display clocks", diff --git a/arch/arm/include/asm/arch-mx28/sys_proto.h b/arch/arm/include/asm/arch-mx28/sys_proto.h index be1f7db..f101494 100644 --- a/arch/arm/include/asm/arch-mx28/sys_proto.h +++ b/arch/arm/include/asm/arch-mx28/sys_proto.h @@ -35,4 +35,6 @@ void mx28_common_spl_init(const iomux_cfg_t *iomux_setup, const unsigned int iomux_size); #endif +int mx28_dram_init(void); + #endif /* __MX28_H__ */ |