arm: ls1021a: Add QSPI or IFC support in SD boot for LS1021AQDS board

As QSPI and IFC are pin-multiplexed on LS1021A, only IFC is supported
in SD boot now. For the customer's demand, QSPI needs to be supported
in SD boot too.

This patch adds QSPI or IFC support in SD boot according to the
corresponding defconfig. For detail, ls1021aqds_sdcard_ifc_defconfig
is used to support IFC in SD boot and ls1021aqds_sdcard_qspi_defconfig
is used to support QSPI in SD boot.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

board/freescale/ls1021aqds/MAINTAINERS

@@ -8,6 +8,7 @@ F:	configs/ls1021aqds_ddr4_nor_defconfig
 F:	configs/ls1021aqds_ddr4_nor_lpuart_defconfig
 F:	configs/ls1021aqds_nor_SECURE_BOOT_defconfig
 F:	configs/ls1021aqds_nor_lpuart_defconfig
-F:	configs/ls1021aqds_sdcard_defconfig
+F:	configs/ls1021aqds_sdcard_ifc_defconfig
+F:	configs/ls1021aqds_sdcard_qspi_defconfig
 F:	configs/ls1021aqds_qspi_defconfig
 F:	configs/ls1021aqds_nand_defconfig

board/freescale/ls1021aqds/ls1021aqds.c

@@ -61,7 +61,7 @@ enum {
 
 int checkboard(void)
 {
-#ifndef CONFIG_QSPI_BOOT
+#if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
 	char buf[64];
 #endif
 #if !defined(CONFIG_SD_BOOT) && !defined(CONFIG_QSPI_BOOT)
@@ -90,7 +90,7 @@ int checkboard(void)
 		printf("invalid setting of SW%u\n", QIXIS_LBMAP_SWITCH);
 #endif
 
-#ifndef CONFIG_QSPI_BOOT
+#if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
 	printf("Sys ID:0x%02x, Sys Ver: 0x%02x\n",
 	       QIXIS_READ(id), QIXIS_READ(arch));
 

board/freescale/ls1021aqds/ls102xa_rcw_sd_qspi.cfg

@@ -0,0 +1,14 @@
+#PBL preamble and RCW header
+aa55aa55 01ee0100
+
+#enable IFC, disable QSPI and DSPI
+#0608000a 00000000 00000000 00000000
+#60000000 00407900 60040a00 21046000
+#00000000 00000000 00000000 00038000
+#00000000 001b7200 00000000 00000000
+
+#disable IFC, enable QSPI and DSPI
+0608000a 00000000 00000000 00000000
+60000000 00407900 60040a00 21046000
+00000000 00000000 00000000 00038000
+20024800 001b7200 00000000 00000000

configs/ls1021aqds_sdcard_qspi_defconfig

@@ -0,0 +1,16 @@
+CONFIG_ARM=y
+CONFIG_TARGET_LS1021AQDS=y
+CONFIG_SPL=y
+CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT_PBL,SPL_FSL_PBL,SD_BOOT,SD_BOOT_QSPI"
+CONFIG_DM_SPI=y
+CONFIG_DEFAULT_DEVICE_TREE="ls1021a-qds-duart"
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_NETDEVICES=y
+CONFIG_E1000=y
+CONFIG_SYS_NS16550=y
+CONFIG_FSL_DSPI=y
+CONFIG_FSL_QSPI=y

include/configs/ls1021aqds.h

@@ -42,7 +42,7 @@ unsigned long get_board_sys_clk(void);
 unsigned long get_board_ddr_clk(void);
 #endif
 
-#ifdef CONFIG_QSPI_BOOT
+#if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_SD_BOOT_QSPI)
 #define CONFIG_SYS_CLK_FREQ		100000000
 #define CONFIG_DDR_CLK_FREQ		100000000
 #define CONFIG_QIXIS_I2C_ACCESS
@@ -56,7 +56,13 @@ unsigned long get_board_ddr_clk(void);
 #endif
 
 #ifdef CONFIG_SD_BOOT
-#define CONFIG_SYS_FSL_PBL_RCW	board/freescale/ls1021aqds/ls102xa_rcw_sd.cfg
+#ifdef CONFIG_SD_BOOT_QSPI
+#define CONFIG_SYS_FSL_PBL_RCW	\
+	board/freescale/ls1021aqds/ls102xa_rcw_sd_qspi.cfg
+#else
+#define CONFIG_SYS_FSL_PBL_RCW	\
+	board/freescale/ls1021aqds/ls102xa_rcw_sd_ifc.cfg
+#endif
 #define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_LDSCRIPT	"arch/$(ARCH)/cpu/u-boot-spl.lds"
 #define CONFIG_SPL_LIBCOMMON_SUPPORT
@@ -87,6 +93,9 @@ unsigned long get_board_ddr_clk(void);
 
 #ifdef CONFIG_QSPI_BOOT
 #define CONFIG_SYS_TEXT_BASE		0x40010000
+#endif
+
+#if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_SD_BOOT_QSPI)
 #define CONFIG_SYS_NO_FLASH
 #endif
 
@@ -162,7 +171,7 @@ unsigned long get_board_ddr_clk(void);
 /*
  * IFC Definitions
  */
-#ifndef CONFIG_QSPI_BOOT
+#if !defined(CONFIG_QSPI_BOOT) && !defined(CONFIG_SD_BOOT_QSPI)
 #define CONFIG_FSL_IFC
 #define CONFIG_SYS_FLASH_BASE		0x60000000
 #define CONFIG_SYS_FLASH_BASE_PHYS	CONFIG_SYS_FLASH_BASE
@@ -412,7 +421,7 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_DOS_PARTITION
 
 /* SPI */
-#ifdef CONFIG_QSPI_BOOT
+#if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_SD_BOOT_QSPI)
 /* QSPI */
 #define QSPI0_AMBA_BASE			0x40000000
 #define FSL_QSPI_FLASH_SIZE		(1 << 24)
@@ -557,6 +566,10 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_CMDLINE_TAG
 #define CONFIG_CMDLINE_EDITING
 
+#if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_SD_BOOT_QSPI)
+#undef CONFIG_CMD_IMLS
+#endif
+
 #define CONFIG_ARMV7_NONSEC
 #define CONFIG_ARMV7_VIRT
 #define CONFIG_PEN_ADDR_BIG_ENDIAN