arm: ls102xa: Add QSPI boot support for LS1021AQDS/TWR board

This patch adds QSPI boot support for LS1021AQDS/TWR board.
The QSPI boot image need to be programmed into the QSPI flash
first. Then the booting will start from QSPI memory space.

Signed-off-by: Alison Wang <alison.wang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

4 files changed, 24 insertions, 0 deletions

diff --git a/board/freescale/ls1021aqds/MAINTAINERS b/board/freescale/ls1021aqds/MAINTAINERS
index 962176b..7a704cf 100644
--- a/board/freescale/ls1021aqds/MAINTAINERS
+++ b/board/freescale/ls1021aqds/MAINTAINERS
@@ -7,3 +7,4 @@ F:	configs/ls1021aqds_nor_defconfig
 F:	configs/ls1021aqds_ddr4_nor_defconfig
 F:	configs/ls1021aqds_nor_SECURE_BOOT_defconfig
 F:	configs/ls1021aqds_sdcard_defconfig
+F:	configs/ls1021aqds_qspi_defconfig
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c
index 9eab42d..9fcd129 100644
--- a/board/freescale/ls1021aqds/ls1021aqds.c
+++ b/board/freescale/ls1021aqds/ls1021aqds.c
@@ -34,7 +34,9 @@ enum {
 
 int checkboard(void)
 {
+#ifndef CONFIG_QSPI_BOOT
 	char buf[64];
+#endif
 #if !defined(CONFIG_SD_BOOT) && !defined(CONFIG_QSPI_BOOT)
 	u8 sw;
 #endif
@@ -61,12 +63,14 @@ int checkboard(void)
 		printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH);
 #endif
 
+#ifndef CONFIG_QSPI_BOOT
 	printf("Sys ID:0x%02x, Sys Ver: 0x%02x\n",
 	       QIXIS_READ(id), QIXIS_READ(arch));
 
 	printf("FPGA:  v%d (%s), build %d\n",
 	       (int)QIXIS_READ(scver), qixis_read_tag(buf),
 	       (int)qixis_read_minor());
+#endif
 
 	return 0;
 }
@@ -164,6 +168,10 @@ int board_early_init_f(void)
 	init_early_memctl_regs();
 #endif
 
+#ifdef CONFIG_FSL_QSPI
+	out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
+#endif
+
 	/* Workaround for the issue that DDR could not respond to
 	 * barrier transaction which is generated by executing DSB/ISB
 	 * instruction. Set CCI-400 control override register to
diff --git a/board/freescale/ls1021atwr/MAINTAINERS b/board/freescale/ls1021atwr/MAINTAINERS
index 2312e00..9176706 100644
--- a/board/freescale/ls1021atwr/MAINTAINERS
+++ b/board/freescale/ls1021atwr/MAINTAINERS
@@ -6,3 +6,4 @@ F:	include/configs/ls1021atwr.h
 F:	configs/ls1021atwr_nor_defconfig
 F:	configs/ls1021atwr_nor_SECURE_BOOT_defconfig
 F:	configs/ls1021atwr_sdcard_defconfig
+F:	configs/ls1021atwr_qspi_defconfig
diff --git a/board/freescale/ls1021atwr/ls1021atwr.c b/board/freescale/ls1021atwr/ls1021atwr.c
index 0faee0a..5c3a282 100644
--- a/board/freescale/ls1021atwr/ls1021atwr.c
+++ b/board/freescale/ls1021atwr/ls1021atwr.c
@@ -72,6 +72,7 @@ struct cpld_data {
 	u8 rev2;		/* Reserved */
 };
 
+#ifndef CONFIG_QSPI_BOOT
 static void convert_serdes_mux(int type, int need_reset);
 
 void cpld_show(void)
@@ -107,11 +108,14 @@ void cpld_show(void)
 	       in_8(&cpld_data->serdes_mux));
 #endif
 }
+#endif
 
 int checkboard(void)
 {
 	puts("Board: LS1021ATWR\n");
+#ifndef CONFIG_QSPI_BOOT
 	cpld_show();
+#endif
 
 	return 0;
 }
@@ -220,6 +224,7 @@ int board_eth_init(bd_t *bis)
 }
 #endif
 
+#ifndef CONFIG_QSPI_BOOT
 int config_serdes_mux(void)
 {
 	struct ccsr_gur __iomem *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
@@ -251,6 +256,7 @@ int config_serdes_mux(void)
 
 	return 0;
 }
+#endif
 
 int board_early_init_f(void)
 {
@@ -269,6 +275,10 @@ int board_early_init_f(void)
 	out_be32(&scfg->pixclkcr, SCFG_PIXCLKCR_PXCKEN);
 #endif
 
+#ifdef CONFIG_FSL_QSPI
+	out_be32(&scfg->qspi_cfg, SCFG_QSPI_CLKSEL);
+#endif
+
 	return 0;
 }
 
@@ -305,8 +315,10 @@ int board_init(void)
 
 #ifndef CONFIG_SYS_FSL_NO_SERDES
 	fsl_serdes_init();
+#ifndef CONFIG_QSPI_BOOT
 	config_serdes_mux();
 #endif
+#endif
 
 #ifdef CONFIG_U_QE
 	u_qe_init();
@@ -354,6 +366,7 @@ u16 flash_read16(void *addr)
 	return (((val) >> 8) & 0x00ff) | (((val) << 8) & 0xff00);
 }
 
+#ifndef CONFIG_QSPI_BOOT
 static void convert_flash_bank(char bank)
 {
 	struct cpld_data *cpld_data = (void *)(CONFIG_SYS_CPLD_BASE);
@@ -536,3 +549,4 @@ U_BOOT_CMD(
 	"	-change lane C & lane D to PCIeX2\n"
 	"\nWARNING: If you aren't familiar with the setting of serdes, don't try to change anything!\n"
 );
+#endif