[U-Boot] [PATCH 1/3] freescale/qixis: Add support for booting from SD/QSPI

[Gong Qianyu]

1.Use "qixis_reset sd" to boot from SD
2.Use "qixis_reset sd_qspi" to boot from SD with QSPI support
3.Use "qixis_reset qspi" to boot from QSPI flash

On some SoCs such as LS1021A and LS1043A, IFC and QSPI could be
pin-multiplexed. So the switches are different between SD boot with
IFC support and SD boot with QSPI support. The default booting from
SD is with IFC support.

Signed-off-by: Gong Qianyu <Qianyu.Gong at freescale.com>
---
 board/freescale/common/qixis.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/board/freescale/common/qixis.c b/board/freescale/common/qixis.c
index 9f6b0e7..8642fec 100644
--- a/board/freescale/common/qixis.c
+++ b/board/freescale/common/qixis.c
@@ -216,6 +216,39 @@ int qixis_reset_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 #else
 		printf("Not implemented\n");
 #endif
+	} else if (strcmp(argv[1], "sd") == 0) {
+#ifdef QIXIS_LBMAP_SD
+		QIXIS_WRITE(rst_ctl, 0x30);
+		QIXIS_WRITE(rcfg_ctl, 0);
+		set_lbmap(QIXIS_LBMAP_SD);
+		set_rcw_src(QIXIS_RCW_SRC_SD);
+		QIXIS_WRITE(rcfg_ctl, 0x20);
+		QIXIS_WRITE(rcfg_ctl, 0x21);
+#else
+		printf("Not implemented\n");
+#endif
+	} else if (strcmp(argv[1], "sd_qspi") == 0) {
+#ifdef QIXIS_LBMAP_SD_QSPI
+		QIXIS_WRITE(rst_ctl, 0x30);
+		QIXIS_WRITE(rcfg_ctl, 0);
+		set_lbmap(QIXIS_LBMAP_SD_QSPI);
+		set_rcw_src(QIXIS_RCW_SRC_SD);
+		QIXIS_WRITE(rcfg_ctl, 0x20);
+		QIXIS_WRITE(rcfg_ctl, 0x21);
+#else
+		printf("Not implemented\n");
+#endif
+	} else if (strcmp(argv[1], "qspi") == 0) {
+#ifdef QIXIS_LBMAP_QSPI
+		QIXIS_WRITE(rst_ctl, 0x30);
+		QIXIS_WRITE(rcfg_ctl, 0);
+		set_lbmap(QIXIS_LBMAP_QSPI);
+		set_rcw_src(QIXIS_RCW_SRC_QSPI);
+		QIXIS_WRITE(rcfg_ctl, 0x20);
+		QIXIS_WRITE(rcfg_ctl, 0x21);
+#else
+		printf("Not implemented\n");
+#endif
 	} else if (strcmp(argv[1], "watchdog") == 0) {
 		static char *period[9] = {"2s", "4s", "8s", "16s", "32s",
 					  "1min", "2min", "4min", "8min"};
@@ -255,6 +288,9 @@ U_BOOT_CMD(
 	"- hard reset to default bank\n"
 	"qixis_reset altbank - reset to alternate bank\n"
 	"qixis_reset nand - reset to nand\n"
+	"qixis_reset sd - reset to sd\n"
+	"qixis_reset sd_qspi - reset to sd with qspi support\n"
+	"qixis_reset qspi - reset to qspi\n"
 	"qixis watchdog <watchdog_period> - set the watchdog period\n"
 	"	period: 1s 2s 4s 8s 16s 32s 1min 2min 4min 8min\n"
 	"qixis_reset dump - display the QIXIS registers\n"
-- 
2.1.0.27.g96db324