[U-Boot] [PATCH v3 8/8] arm: ls102xa: Add NAND boot support for LS1021AQDS board

Alison Wang b18965 at freescale.com
Fri Oct 17 10:06:43 CEST 2014


This patch adds NAND boot support for LS1021AQDS board. SPL
framework is used. PBL initialize the internal RAM and copy
SPL to it, then SPL initialize DDR using SPD and copy u-boot
from NAND flash to DDR, finally SPL transfer control to u-boot.

Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
Signed-off-by: Alison Wang <alison.wang at freescale.com>
---
Change log:
 v3: New file.

 arch/arm/include/asm/arch-ls102xa/config.h        |  1 +
 arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h |  2 +
 board/freescale/ls1021aqds/MAINTAINERS            |  1 +
 board/freescale/ls1021aqds/ls1021aqds.c           | 16 ++++++
 board/freescale/ls1021aqds/ls102xa_rcw_nand.cfg   |  7 +++
 configs/ls1021aqds_nand_defconfig                 |  4 ++
 drivers/mtd/nand/fsl_ifc_spl.c                    |  8 +++
 include/configs/ls1021aqds.h                      | 68 +++++++++++++++++++++++
 8 files changed, 107 insertions(+)
 create mode 100644 board/freescale/ls1021aqds/ls102xa_rcw_nand.cfg
 create mode 100644 configs/ls1021aqds_nand_defconfig

diff --git a/arch/arm/include/asm/arch-ls102xa/config.h b/arch/arm/include/asm/arch-ls102xa/config.h
index a500b5b..da7537c 100644
--- a/arch/arm/include/asm/arch-ls102xa/config.h
+++ b/arch/arm/include/asm/arch-ls102xa/config.h
@@ -13,6 +13,7 @@
 #define OCRAM_SIZE				0x00020000
 
 #define CONFIG_SYS_IMMR				0x01000000
+#define CONFIG_SYS_DCSRBAR			0x20200000
 
 #define CONFIG_SYS_FSL_DDR_ADDR			(CONFIG_SYS_IMMR + 0x00080000)
 #define CONFIG_SYS_CCI400_ADDR			(CONFIG_SYS_IMMR + 0x00180000)
diff --git a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
index 73f335d..f0a652b 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -29,6 +29,8 @@
 #define ARCH_TIMER_CTRL_ENABLE		(1 << 0)
 #define SYS_COUNTER_CTRL_ENABLE		(1 << 24)
 
+#define DCFG_CCSR_PORSR1_RCW_MASK	0xff800000
+
 struct sys_info {
 	unsigned long freq_processor[CONFIG_MAX_CPUS];
 	unsigned long freq_systembus;
diff --git a/board/freescale/ls1021aqds/MAINTAINERS b/board/freescale/ls1021aqds/MAINTAINERS
index de11203..f136700 100644
--- a/board/freescale/ls1021aqds/MAINTAINERS
+++ b/board/freescale/ls1021aqds/MAINTAINERS
@@ -6,3 +6,4 @@ F:	include/configs/ls1021aqds.h
 F:	configs/ls1021aqds_nor_defconfig
 F:	configs/ls1021aqds_ddr4_nor_defconfig
 F:	configs/ls1021aqds_sdcard_defconfig
+F:	configs/ls1021aqds_nand_defconfig
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c
index 34f54ab..053ba70 100644
--- a/board/freescale/ls1021aqds/ls1021aqds.c
+++ b/board/freescale/ls1021aqds/ls1021aqds.c
@@ -164,6 +164,22 @@ void board_init_f(ulong dummy)
 {
 	struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
 
+#ifdef CONFIG_NAND_BOOT
+	struct ccsr_gur __iomem *gur = (void *)CONFIG_SYS_FSL_GUTS_ADDR;
+	u32 porsr1, pinctl;
+
+	init_early_memctl_regs();
+
+	/*
+	 * There is LS1 SoC issue where NOR, FPGA are inaccessible during
+	 * NAND boot because IFC signals > IFC_AD7 are not enabled.
+	 * This workaround changes RCW source to make all signals enabled.
+	 */
+	porsr1 = in_be32(&gur->porsr1);
+	pinctl = ((porsr1 & ~(DCFG_CCSR_PORSR1_RCW_MASK)) | 0x24800000);
+	out_be32((unsigned int *)(CONFIG_SYS_DCSRBAR + 0x20000), pinctl);
+#endif
+
 	/* Set global data pointer */
 	gd = &gdata;
 
diff --git a/board/freescale/ls1021aqds/ls102xa_rcw_nand.cfg b/board/freescale/ls1021aqds/ls102xa_rcw_nand.cfg
new file mode 100644
index 0000000..222c71d
--- /dev/null
+++ b/board/freescale/ls1021aqds/ls102xa_rcw_nand.cfg
@@ -0,0 +1,7 @@
+#PBL preamble and RCW header
+aa55aa55 01ee0100
+# serdes protocol
+0608000a 00000000 00000000 00000000
+60000000 00407900 e0106a00 21046000
+00000000 00000000 00000000 00038000
+00000000 001b7200 00000000 00000000
diff --git a/configs/ls1021aqds_nand_defconfig b/configs/ls1021aqds_nand_defconfig
new file mode 100644
index 0000000..dad5274
--- /dev/null
+++ b/configs/ls1021aqds_nand_defconfig
@@ -0,0 +1,4 @@
+CONFIG_SPL=y
+CONFIG_SYS_EXTRA_OPTIONS="RAMBOOT_PBL,SPL_FSL_PBL,NAND_BOOT"
++S:CONFIG_ARM=y
++S:CONFIG_TARGET_LS1021AQDS=y
diff --git a/drivers/mtd/nand/fsl_ifc_spl.c b/drivers/mtd/nand/fsl_ifc_spl.c
index e336cb1..3d96aaf 100644
--- a/drivers/mtd/nand/fsl_ifc_spl.c
+++ b/drivers/mtd/nand/fsl_ifc_spl.c
@@ -12,6 +12,14 @@
 #include <fsl_ifc.h>
 #include <linux/mtd/nand.h>
 
+void nand_init(void)
+{
+}
+
+void nand_deselect(void)
+{
+}
+
 static inline int is_blank(uchar *addr, int page_size)
 {
 	int i;
diff --git a/include/configs/ls1021aqds.h b/include/configs/ls1021aqds.h
index 71021cf..1136278 100644
--- a/include/configs/ls1021aqds.h
+++ b/include/configs/ls1021aqds.h
@@ -79,6 +79,39 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_NO_FLASH
 #endif
 
+#ifdef CONFIG_NAND_BOOT
+#define CONFIG_SYS_FSL_PBL_RCW	board/freescale/ls1021aqds/ls102xa_rcw_nand.cfg
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_LDSCRIPT	"arch/$(ARCH)/cpu/u-boot-spl.lds"
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_ENV_SUPPORT
+#define CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
+#define CONFIG_SPL_I2C_SUPPORT
+#define CONFIG_SPL_WATCHDOG_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_DRIVERS_MISC_SUPPORT
+
+#define CONFIG_SPL_TEXT_BASE		0x10000000
+#define CONFIG_SPL_MAX_SIZE		0x1a000
+#define CONFIG_SPL_STACK		0x1001d000
+#define CONFIG_SPL_PAD_TO		0x1c000
+#define CONFIG_SYS_TEXT_BASE		0x82000000
+
+#define CONFIG_SYS_NAND_U_BOOT_SIZE	(400 << 10)
+#define CONFIG_SYS_NAND_U_BOOT_OFFS	CONFIG_SPL_PAD_TO
+#define CONFIG_SYS_NAND_PAGE_SIZE	2048
+#define CONFIG_SYS_NAND_U_BOOT_DST	CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_TEXT_BASE
+
+#define CONFIG_SYS_SPL_MALLOC_START	0x80200000
+#define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000
+#define CONFIG_SPL_BSS_START_ADDR	0x80100000
+#define CONFIG_SPL_BSS_MAX_SIZE		0x80000
+#define CONFIG_SYS_MONITOR_LEN		0x80000
+#endif
+
 #ifndef CONFIG_SYS_TEXT_BASE
 #define CONFIG_SYS_TEXT_BASE		0x67f80000
 #endif
@@ -249,6 +282,40 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_FPGA_FTIM3		0x0
 #endif
 
+#if defined(CONFIG_NAND_BOOT)
+#define CONFIG_SYS_CSPR0_EXT		CONFIG_SYS_NAND_CSPR_EXT
+#define CONFIG_SYS_CSPR0		CONFIG_SYS_NAND_CSPR
+#define CONFIG_SYS_AMASK0		CONFIG_SYS_NAND_AMASK
+#define CONFIG_SYS_CSOR0		CONFIG_SYS_NAND_CSOR
+#define CONFIG_SYS_CS0_FTIM0		CONFIG_SYS_NAND_FTIM0
+#define CONFIG_SYS_CS0_FTIM1		CONFIG_SYS_NAND_FTIM1
+#define CONFIG_SYS_CS0_FTIM2		CONFIG_SYS_NAND_FTIM2
+#define CONFIG_SYS_CS0_FTIM3		CONFIG_SYS_NAND_FTIM3
+#define CONFIG_SYS_CSPR1_EXT		CONFIG_SYS_NOR0_CSPR_EXT
+#define CONFIG_SYS_CSPR1		CONFIG_SYS_NOR0_CSPR
+#define CONFIG_SYS_AMASK1		CONFIG_SYS_NOR_AMASK
+#define CONFIG_SYS_CSOR1		CONFIG_SYS_NOR_CSOR
+#define CONFIG_SYS_CS1_FTIM0		CONFIG_SYS_NOR_FTIM0
+#define CONFIG_SYS_CS1_FTIM1		CONFIG_SYS_NOR_FTIM1
+#define CONFIG_SYS_CS1_FTIM2		CONFIG_SYS_NOR_FTIM2
+#define CONFIG_SYS_CS1_FTIM3		CONFIG_SYS_NOR_FTIM3
+#define CONFIG_SYS_CSPR2_EXT		CONFIG_SYS_NOR1_CSPR_EXT
+#define CONFIG_SYS_CSPR2		CONFIG_SYS_NOR1_CSPR
+#define CONFIG_SYS_AMASK2		CONFIG_SYS_NOR_AMASK
+#define CONFIG_SYS_CSOR2		CONFIG_SYS_NOR_CSOR
+#define CONFIG_SYS_CS2_FTIM0		CONFIG_SYS_NOR_FTIM0
+#define CONFIG_SYS_CS2_FTIM1		CONFIG_SYS_NOR_FTIM1
+#define CONFIG_SYS_CS2_FTIM2		CONFIG_SYS_NOR_FTIM2
+#define CONFIG_SYS_CS2_FTIM3		CONFIG_SYS_NOR_FTIM3
+#define CONFIG_SYS_CSPR3_EXT		CONFIG_SYS_FPGA_CSPR_EXT
+#define CONFIG_SYS_CSPR3		CONFIG_SYS_FPGA_CSPR
+#define CONFIG_SYS_AMASK3		CONFIG_SYS_FPGA_AMASK
+#define CONFIG_SYS_CSOR3		CONFIG_SYS_FPGA_CSOR
+#define CONFIG_SYS_CS3_FTIM0		CONFIG_SYS_FPGA_FTIM0
+#define CONFIG_SYS_CS3_FTIM1		CONFIG_SYS_FPGA_FTIM1
+#define CONFIG_SYS_CS3_FTIM2		CONFIG_SYS_FPGA_FTIM2
+#define CONFIG_SYS_CS3_FTIM3		CONFIG_SYS_FPGA_FTIM3
+#else
 #define CONFIG_SYS_CSPR0_EXT		CONFIG_SYS_NOR0_CSPR_EXT
 #define CONFIG_SYS_CSPR0		CONFIG_SYS_NOR0_CSPR
 #define CONFIG_SYS_AMASK0		CONFIG_SYS_NOR_AMASK
@@ -281,6 +348,7 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_CS3_FTIM1		CONFIG_SYS_FPGA_FTIM1
 #define CONFIG_SYS_CS3_FTIM2		CONFIG_SYS_FPGA_FTIM2
 #define CONFIG_SYS_CS3_FTIM3		CONFIG_SYS_FPGA_FTIM3
+#endif
 
 /*
  * Serial Port
-- 
2.1.0.27.g96db324



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