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>
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 @@
}
#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",