+
+/*
+ * This function finds the SDRAM size available in the system
+ * based on DMM section configurations
+ * This is needed because the size of memory installed may be
+ * different on different versions of the board
+ */
+u32 sdram_size(void)
+{
+ u32 section, i, total_size = 0, size, addr;
+ for (i = 0; i < 4; i++) {
+ section = __raw_readl(DMM_LISA_MAP_BASE + i*4);
+ addr = section & DMM_LISA_MAP_SYS_ADDR_MASK;
+ /* See if the address is valid */
+ if ((addr >= OMAP44XX_DRAM_ADDR_SPACE_START) &&
+ (addr < OMAP44XX_DRAM_ADDR_SPACE_END)) {
+ size = ((section & DMM_LISA_MAP_SYS_SIZE_MASK) >>
+ DMM_LISA_MAP_SYS_SIZE_SHIFT);
+ size = 1 << size;
+ size *= SZ_16M;
+ total_size += size;
+ }
+ }
+ return total_size;
+}
+
+