armv8/ls1043ardb: Add sd boot support

Signed-off-by: Gong Qianyu <Qianyu.Gong@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

5 files changed, 33 insertions, 0 deletions

diff --git a/board/freescale/ls1043ardb/README b/board/freescale/ls1043ardb/README
index 4f15557..0556e73 100644
--- a/board/freescale/ls1043ardb/README
+++ b/board/freescale/ls1043ardb/README
@@ -84,3 +84,4 @@ Booting Options
 ---------------
 a) NOR boot
 b) NAND boot
+c) SD boot
diff --git a/board/freescale/ls1043ardb/cpld.c b/board/freescale/ls1043ardb/cpld.c
index f29383d..78c2824 100644
--- a/board/freescale/ls1043ardb/cpld.c
+++ b/board/freescale/ls1043ardb/cpld.c
@@ -61,6 +61,21 @@ void cpld_set_nand(void)
 	CPLD_WRITE(system_rst, 1);
 }
 
+void cpld_set_sd(void)
+{
+	u16 reg = CPLD_CFG_RCW_SRC_SD;
+	u8 reg5 = (u8)(reg >> 1);
+	u8 reg6 = (u8)(reg & 1);
+
+	cpld_rev_bit(&reg5);
+
+	CPLD_WRITE(soft_mux_on, 1);
+
+	CPLD_WRITE(cfg_rcw_src1, reg5);
+	CPLD_WRITE(cfg_rcw_src2, reg6);
+
+	CPLD_WRITE(system_rst, 1);
+}
 #ifdef DEBUG
 static void cpld_dump_regs(void)
 {
@@ -109,6 +124,8 @@ int do_cpld(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 			cpld_set_altbank();
 		else if (strcmp(argv[2], "nand") == 0)
 			cpld_set_nand();
+		else if (strcmp(argv[2], "sd") == 0)
+			cpld_set_sd();
 		else
 			cpld_set_defbank();
 #ifdef DEBUG
@@ -128,6 +145,7 @@ U_BOOT_CMD(
 	"reset: reset to default bank\n"
 	"cpld reset altbank: reset to alternate bank\n"
 	"cpld reset nand: reset to boot from NAND flash\n"
+	"cpld reset sd: reset to boot from SD card\n"
 #ifdef DEBUG
 	"cpld dump - display the CPLD registers\n"
 #endif
diff --git a/board/freescale/ls1043ardb/cpld.h b/board/freescale/ls1043ardb/cpld.h
index 5f43a8a..bd59c0e 100644
--- a/board/freescale/ls1043ardb/cpld.h
+++ b/board/freescale/ls1043ardb/cpld.h
@@ -41,4 +41,5 @@ void cpld_rev_bit(unsigned char *value);
 #define CPLD_BANK_SEL_MASK	0x07
 #define CPLD_BANK_SEL_ALTBANK	0x04
 #define CPLD_CFG_RCW_SRC_NAND	0x106
+#define CPLD_CFG_RCW_SRC_SD	0x040
 #endif
diff --git a/board/freescale/ls1043ardb/ls1043ardb.c b/board/freescale/ls1043ardb/ls1043ardb.c
index 461a195..9032ed3 100644
--- a/board/freescale/ls1043ardb/ls1043ardb.c
+++ b/board/freescale/ls1043ardb/ls1043ardb.c
@@ -25,12 +25,17 @@ DECLARE_GLOBAL_DATA_PTR;
 int checkboard(void)
 {
 	static const char *freq[3] = {"100.00MHZ", "156.25MHZ"};
+#ifndef CONFIG_SD_BOOT
 	u8 cfg_rcw_src1, cfg_rcw_src2;
 	u32 cfg_rcw_src;
+#endif
 	u32 sd1refclk_sel;
 
 	printf("Board: LS1043ARDB, boot from ");
 
+#ifdef CONFIG_SD_BOOT
+	puts("SD\n");
+#else
 	cfg_rcw_src1 = CPLD_READ(cfg_rcw_src1);
 	cfg_rcw_src2 = CPLD_READ(cfg_rcw_src2);
 	cpld_rev_bit(&cfg_rcw_src1);
@@ -43,6 +48,7 @@ int checkboard(void)
 		puts("NAND\n");
 	else
 		printf("Invalid setting of SW4\n");
+#endif
 
 	printf("CPLD:  V%x.%x\nPCBA:  V%x.0\n", CPLD_READ(cpld_ver),
 	       CPLD_READ(cpld_ver_sub), CPLD_READ(pcba_ver));
diff --git a/board/freescale/ls1043ardb/ls1043ardb_rcw_sd.cfg b/board/freescale/ls1043ardb/ls1043ardb_rcw_sd.cfg
new file mode 100644
index 0000000..28cd958
--- /dev/null
+++ b/board/freescale/ls1043ardb/ls1043ardb_rcw_sd.cfg
@@ -0,0 +1,7 @@
+#PBL preamble and RCW header
+aa55aa55 01ee0100
+# RCW
+0810000f 0c000000 00000000 00000000
+14550002 80004012 60040000 61002000
+00000000 00000000 00000000 00038800
+00000000 00001100 00000096 00000001