Patchwork [U-Boot,v2,2/2] ti814x: add support for NAND flash on ti814x_evm board

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Submitter pekon gupta
Date Sept. 30, 2013, 6:44 p.m.
Message ID <1380566684-10459-2-git-send-email-pekon@ti.com>
Download mbox | patch
Permalink /patch/279212/
State Superseded
Delegated to: Tom Rini
Headers show

Comments

pekon gupta - Sept. 30, 2013, 6:44 p.m.
ti814x_evm has on-board socket for using Micron (MT29Fxx) family of
NAND devices to GPMC interface. This patch
- adds NAND related pin-mux configuration for same
- adds #defines for NAND partitions to TI814x configs
- enables support for NAND in TI814x configs

Signed-off-by: Pekon Gupta <pekon@ti.com>
---
 board/ti/ti814x/evm.c        |  4 +-
 board/ti/ti814x/evm.h        |  1 +
 board/ti/ti814x/mux.c        | 34 +++++++++++++++++
 include/configs/ti814x_evm.h | 91 +++++++++++++++++++++++++++++++++++++++++---
 4 files changed, 124 insertions(+), 6 deletions(-)

Patch

diff --git a/board/ti/ti814x/evm.c b/board/ti/ti814x/evm.c
index e406326..3bd73a3 100644
--- a/board/ti/ti814x/evm.c
+++ b/board/ti/ti814x/evm.c
@@ -91,9 +91,10 @@  void set_mux_conf_regs(void)
 {
 	/* Set MMC pins */
 	enable_mmc1_pin_mux();
-
 	/* Set Ethernet pins */
 	enable_enet_pin_mux();
+	/* Set NAND pins */
+	enable_nand_pin_mux();
 }
 
 void sdram_init(void)
@@ -113,6 +114,7 @@  void sdram_init(void)
 int board_init(void)
 {
 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+	gpmc_init();
 	return 0;
 }
 
diff --git a/board/ti/ti814x/evm.h b/board/ti/ti814x/evm.h
index 6aebec6..113ccc0 100644
--- a/board/ti/ti814x/evm.h
+++ b/board/ti/ti814x/evm.h
@@ -4,5 +4,6 @@ 
 void enable_uart0_pin_mux(void);
 void enable_mmc1_pin_mux(void);
 void enable_enet_pin_mux(void);
+void enable_nand_pin_mux(void);
 
 #endif /* _EVM_H */
diff --git a/board/ti/ti814x/mux.c b/board/ti/ti814x/mux.c
index fd9f364..63afe04 100644
--- a/board/ti/ti814x/mux.c
+++ b/board/ti/ti814x/mux.c
@@ -70,6 +70,35 @@  static struct module_pin_mux enet_pin_mux[] = {
 	{OFFSET(pincntl258), MODE(0x01)},		/* EMAC[0]_MTXEN */
 };
 
+#ifdef CONFIG_NAND
+static struct module_pin_mux nand_x16_pin_mux[] = {
+		{OFFSET(pincntl89) , MODE(1) | PULL_DISABLE}, /* GPMC_AD0  */
+		{OFFSET(pincntl90) , MODE(1) | PULL_DISABLE}, /* GPMC_AD1  */
+		{OFFSET(pincntl91) , MODE(1) | PULL_DISABLE}, /* GPMC_AD2  */
+		{OFFSET(pincntl92) , MODE(1) | PULL_DISABLE}, /* GPMC_AD3  */
+		{OFFSET(pincntl93) , MODE(1) | PULL_DISABLE}, /* GPMC_AD4  */
+		{OFFSET(pincntl94) , MODE(1) | PULL_DISABLE}, /* GPMC_AD5  */
+		{OFFSET(pincntl95) , MODE(1) | PULL_DISABLE}, /* GPMC_AD6  */
+		{OFFSET(pincntl96) , MODE(1) | PULL_DISABLE}, /* GPMC_AD7  */
+		{OFFSET(pincntl97) , MODE(1) | PULL_DISABLE}, /* GPMC_AD8  */
+		{OFFSET(pincntl98) , MODE(1) | PULL_DISABLE}, /* GPMC_AD9  */
+		{OFFSET(pincntl99) , MODE(1) | PULL_DISABLE}, /* GPMC_AD10 */
+		{OFFSET(pincntl100), MODE(1) | PULL_DISABLE}, /* GPMC_AD11 */
+		{OFFSET(pincntl101), MODE(1) | PULL_DISABLE}, /* GPMC_AD12 */
+		{OFFSET(pincntl102), MODE(1) | PULL_DISABLE}, /* GPMC_AD13 */
+		{OFFSET(pincntl103), MODE(1) | PULL_DISABLE}, /* GPMC_AD14 */
+		{OFFSET(pincntl104), MODE(1) | PULL_DISABLE}, /* GPMC_AD15 */
+		{OFFSET(pincntl122), MODE(1) | PULLUP_EN}, /* GPMC_CS0 */
+		{OFFSET(pincntl128), MODE(1) | PULLDOWN_EN}, /* GPMC_ALE_ADV */
+		{OFFSET(pincntl129), MODE(1) | PULLUP_EN}, /* GPMC_OE_RE */
+		{OFFSET(pincntl130), MODE(1) | PULLUP_EN}, /* GPMC_WEN */
+		{OFFSET(pincntl131), MODE(1) | PULLDOWN_EN}, /* GPMC_BE_CLE */
+		{OFFSET(pincntl133), MODE(1) | PULLUP_EN}, /* GPMC_WAIT0 */
+		/* GPMC_WPN is controlled by Switch SW11(3) on board */
+		{-1},
+};
+#endif
+
 void enable_uart0_pin_mux(void)
 {
 	configure_module_pin_mux(uart0_pin_mux);
@@ -84,3 +113,8 @@  void enable_enet_pin_mux(void)
 {
 	configure_module_pin_mux(enet_pin_mux);
 }
+
+void enable_nand_pin_mux(void)
+{
+	configure_module_pin_mux(nand_x16_pin_mux);
+}
diff --git a/include/configs/ti814x_evm.h b/include/configs/ti814x_evm.h
index 2fc2c10..2589e50 100644
--- a/include/configs/ti814x_evm.h
+++ b/include/configs/ti814x_evm.h
@@ -18,8 +18,8 @@ 
 
 #define CONFIG_TI81XX
 #define CONFIG_TI814X
-#define CONFIG_SYS_NO_FLASH
 #define CONFIG_OMAP
+#define CONFIG_NAND
 #define CONFIG_OMAP_COMMON
 
 #include <asm/arch/omap.h>
@@ -42,10 +42,32 @@ 
 
 #define CONFIG_CMD_ASKENV
 #define CONFIG_VERSION_VARIABLE
-
 #define CONFIG_BOOTDELAY		1	/* negative for no autoboot */
 #define CONFIG_ENV_VARS_UBOOT_CONFIG
 #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
+#ifdef CONFIG_NAND
+#define NANDARGS \
+	"mtdids=" MTDIDS_DEFAULT "\0" \
+	"mtdparts=" MTDPARTS_DEFAULT "\0" \
+	"nandargs=setenv bootargs console=${console} " \
+		"${optargs} " \
+		"root=${nandroot} " \
+		"rootfstype=${nandrootfstype}\0" \
+	"dfu_alt_info_nand=" DFU_ALT_INFO_NAND "\0" \
+	"nandroot=ubi0:rootfs rw ubi.mtd=7,2048\0" \
+	"nandrootfstype=ubifs rootwait=1\0" \
+	"nandsrcaddr=0x280000\0" \
+		"nandboot=echo Booting from nand ...; " \
+		"run nandargs; " \
+		"nand read ${loadaddr} ${nandsrcaddr} ${nandimgsize}; " \
+		"bootm ${loadaddr}\0" \
+	"nandimgsize=0x500000\0"
+#else
+#define NANDARGS ""
+#endif
+
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"loadaddr=0x80200000\0" \
 	"fdtaddr=0x80F80000\0" \
@@ -196,8 +218,6 @@ 
 #define CONFIG_SYS_SPI_U_BOOT_SIZE	0x40000
 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/omap-common/u-boot-spl.lds"
 
-#define CONFIG_SPL_BOARD_INIT
-
 /*
  * 1MB into the SDRAM to allow for SPL's bss at the beginning of SDRAM
  * 64 bytes before this address should be set aside for u-boot.img's
@@ -207,7 +227,9 @@ 
 #define CONFIG_SYS_TEXT_BASE		0x80800000
 #define CONFIG_SYS_SPL_MALLOC_START	0x80208000
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000
-
+/* defines required in SPL for loading U-BOOT image */
+#define CONFIG_SYS_UBOOT_START		CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_UBOOT_SIZE		0x240000
 /*
  * Since SPL did pll and ddr initialization for us,
  * we don't need to do it twice.
@@ -239,4 +261,63 @@ 
 #define CONFIG_PHY_ET1011C
 #define CONFIG_PHY_ET1011C_TX_CLK_FIX
 
+/* NAND support */
+#ifdef CONFIG_NAND
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+#define CONFIG_SYS_NAND_DEVICE_WIDTH	16
+#define CONFIG_SYS_NAND_BLOCK_SIZE	131072
+#define CONFIG_SYS_NAND_PAGE_SIZE	2048
+#define CONFIG_SYS_NAND_OOBSIZE		64
+#define CONFIG_SYS_NAND_PAGE_COUNT	(CONFIG_SYS_NAND_BLOCK_SIZE / \
+					 CONFIG_SYS_NAND_PAGE_SIZE)
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS	NAND_LARGE_BADBLOCK_POS
+#define CONFIG_SYS_NAND_ECCPOS		{ 2, 3, 4, 5, 6, 7, 8, 9, \
+					 10, 11, 12, 13, 14, 15, 16, 17, \
+					 18, 19, 20, 21, 22, 23, 24, 25, \
+					 26, 27, 28, 29, 30, 31, 32, 33, \
+					 34, 35, 36, 37, 38, 39, 40, 41, \
+					 42, 43, 44, 45, 46, 47, 48, 49, \
+					 50, 51, 52, 53, 54, 55, 56, 57, }
+#define CONFIG_SYS_NAND_ECCSIZE		512
+#define CONFIG_SYS_NAND_ECCBYTES	14
+#define CONFIG_SYS_NAND_ONFI_DETECTION
+#define CONFIG_NAND_OMAP_ECCSCHEME	6
+/* generic driver configurations */
+#define CONFIG_NAND_OMAP_GPMC		/* required for building nand driver */
+#define CONFIG_SYS_NAND_U_BOOT_START	CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_NAND_U_BOOT_OFFS	0x80000
+#define CONFIG_SYS_NAND_BASE		0x08000000  /* physical address to */
+						    /* access nand at CS0 */
+#define CONFIG_SYS_MAX_NAND_DEVICE	1	/* Max NAND devices allowed */
+#define CONFIG_CMD_NAND
+/* SPL specific configurations */
+#define CONFIG_SPL_BOARD_INIT
+#define CONFIG_SPL_NAND_AM33XX_BCH		/* enable ELM support */
+#define CONFIG_SPL_NAND_SUPPORT
+#define CONFIG_SPL_NAND_BASE
+#define CONFIG_SPL_NAND_DRIVERS
+#define CONFIG_SPL_NAND_ECC
+/* falcon mode specific configs */
+#ifdef CONFIG_SPL_OS_BOOT
+  #define CONFIG_CMD_SPL_NAND_OFS		0x240000 /* env offset */
+  #define CONFIG_SYS_NAND_SPL_KERNEL_OFFS	0x280000 /* kernel offset */
+  #define CONFIG_CMD_SPL_WRITE_SIZE		0x1000
+#endif
+/* framework specific configurations */
+#if !defined(CONFIG_SPI_BOOT) && !defined(CONFIG_NOR_BOOT)
+  #define CONFIG_MTD_DEVICE		/* Required for mtdparts */
+  #define CONFIG_CMD_MTDPARTS
+  #define MTDIDS_DEFAULT		"nand0=omap2-nand.0"
+  #define MTDPARTS_DEFAULT		"mtdparts=omap2-nand.0:128k(SPL)," \
+					"128k(SPL.backup1)," \
+					"128k(SPL.backup2)," \
+					"128k(SPL.backup3),1792k(u-boot)," \
+					"128k(u-boot-spl-os)," \
+					"128k(u-boot-env),5m(kernel),-(rootfs)"
+#endif
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		0x260000 /* environment starts here */
+#undef CONFIG_ENV_IS_NOWHERE		/* undef this as env is in NAND */
+#endif /* CONFIG_NAND */
+
 #endif	/* ! __CONFIG_TI814X_EVM_H */