From 5bcc6a8901020ce22a996ef438cfc7be7a0c3995 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 20 Dec 2011 05:46:33 +0000 Subject: 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 Acked-by: Marek Vasut --- arch/arm/cpu/arm926ejs/mx28/mx28.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'arch/arm/cpu/arm926ejs') 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", -- cgit v1.1