[U-Boot] [PATCH v4 9/9] arm: ls102xa: Add NAND boot support for LS1021AQDS board

Alison Wang
2014-12-06T14:46:57Z

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@freescale.com>
Signed-off-by: Alison Wang <alison.wang@freescale.com>
---
Change log:
v4: Use some defines instead of the magic numbers.
v3: New file.

arch/arm/include/asm/arch-ls102xa/config.h | 1 +
arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h | 5 ++
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 | 10 ++++
include/configs/ls1021aqds.h | 72 +++++++++++++++++++++++
8 files changed, 116 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 ba86eea..8318c91 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 b0c267c..3af63f8 100644
--- a/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
+++ b/arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h
@@ -29,6 +29,11 @@
#define ARCH_TIMER_CTRL_ENABLE (1 << 0)
#define SYS_COUNTER_CTRL_ENABLE (1 << 24)

+#define DCFG_CCSR_PORSR1_RCW_MASK 0xff800000
+#define DCFG_CCSR_PORSR1_RCW_SRC_I2C 0x24800000
+
+#define DCFG_DCSR_PORCR1 0x20000
+
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 962176b..b7d85dc 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_nand_defconfig
diff --git a/board/freescale/ls1021aqds/ls1021aqds.c b/board/freescale/ls1021aqds/ls1021aqds.c
index bb1ec72..a8e6276 100644
--- a/board/freescale/ls1021aqds/ls1021aqds.c
+++ b/board/freescale/ls1021aqds/ls1021aqds.c
@@ -172,6 +172,22 @@ 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;
+
+ /*
+ * 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)) |
+ DCFG_CCSR_PORSR1_RCW_SRC_I2C);
+ out_be32((unsigned int *)(CONFIG_SYS_DCSRBAR + DCFG_DCSR_PORCR1),
+ 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..fb827c5 100644
--- a/drivers/mtd/nand/fsl_ifc_spl.c
+++ b/drivers/mtd/nand/fsl_ifc_spl.c
@@ -254,3 +254,13 @@ void nand_boot(void)
uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
uboot();
}
+
+#ifndef CONFIG_SPL_NAND_INIT
+void nand_init(void)
+{
+}
+
+void nand_deselect(void)
+{
+}
+#endif
diff --git a/include/configs/ls1021aqds.h b/include/configs/ls1021aqds.h
index 1dbaf30..e65935e 100644
--- a/include/configs/ls1021aqds.h
+++ b/include/configs/ls1021aqds.h
@@ -73,6 +73,39 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_SYS_MONITOR_LEN 0x80000
#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
@@ -247,6 +280,40 @@ 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
@@ -279,6 +346,7 @@ 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
@@ -446,6 +514,10 @@ unsigned long get_board_ddr_clk(void);
#define CONFIG_ENV_IS_IN_MMC
#define CONFIG_SYS_MMC_ENV_DEV 0
#define CONFIG_ENV_SIZE 0x2000
+#elif defined(CONFIG_NAND_BOOT)
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_SIZE 0x2000
+#define CONFIG_ENV_OFFSET (10 * CONFIG_SYS_NAND_BLOCK_SIZE)
#else
#define CONFIG_ENV_IS_IN_FLASH
#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
--
2.1.0.27.g96db324