sbc8548: enable ability to boot from alternate flash

[karo-tx-uboot.git] / board / sbc8548 / law.c

diff --git a/board/sbc8548/law.c b/board/sbc8548/law.c
index febb6829c35f04ef6604fa43636bf4bf70dd9008..c263191c3ddf37c79bc88867e3961be5c9fc6427 100644 (file)
--- a/board/sbc8548/law.c
+++ b/board/sbc8548/law.c
@@ -41,13 +41,21 @@
  * 0xf8b0_0000 0xf80f_ffff     EEPROM                  1M
  * 0xff80_0000 0xffff_ffff     FLASH (boot bank)       8M
  *
+ * If swapped CS0/CS6 via JP12+SW2.8:
+ * 0xef80_0000 0xefff_ffff     FLASH (2nd bank)        8M
+ * 0xfc00_0000 0xffff_ffff     FLASH (boot bank)       64M
+ *
  * Notes:
  *     CCSRBAR and L2-as-SRAM don't need a configured Local Access Window.
  *     If flash is 8M at default position (last 8M), no LAW needed.
  */
 
 struct law_entry law_table[] = {
+#ifdef CONFIG_SYS_ALT_BOOT
+       SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_8M, LAW_TRGT_IF_LBC),
+#else
        SET_LAW(CONFIG_SYS_ALT_FLASH, LAW_SIZE_64M, LAW_TRGT_IF_LBC),
+#endif
 #ifndef CONFIG_SPD_EEPROM
        SET_LAW(CONFIG_SYS_DDR_SDRAM_BASE, LAW_SIZE_256M, LAW_TRGT_IF_DDR),
 #endif