[U-Boot] [PATCH] OMAP3EVM: Added NAND support

hvaibhav at ti.com
2009-11-18T06:58:14Z

From: Vaibhav Hiremath <hvaibhav@ti.com>

User can now choose between NAND and ONENAND support in omap3_evm.h

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
---
include/configs/omap3_evm.h | 27 ++++++++++++++++++++++++++-
1 files changed, 26 insertions(+), 1 deletions(-)

diff --git a/include/configs/omap3_evm.h b/include/configs/omap3_evm.h
index a5514ae..3434306 100644
--- a/include/configs/omap3_evm.h
+++ b/include/configs/omap3_evm.h
@@ -110,7 +110,8 @@

#define CONFIG_CMD_I2C /* I2C serial bus support */
#define CONFIG_CMD_MMC /* MMC support */
-#define CONFIG_CMD_ONENAND /* ONENAND support */
+/*#define CONFIG_CMD_ONENAND*/ /* ONENAND support */
+#define CONFIG_CMD_NAND /* NAND support */
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_PING

@@ -141,6 +142,7 @@
/* to access */
/* nand at CS0 */

+
#define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of */
/* NAND devices */
#define CONFIG_SYS_64BIT_VSPRINTF /* needed for nand_util.c */
@@ -268,7 +270,13 @@
#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
#define CONFIG_SYS_ONENAND_BASE ONENAND_MAP

+#if defined(CONFIG_CMD_NAND)
+#define CONFIG_NAND_OMAP_GPMC
+#define GPMC_NAND_ECC_LP_x16_LAYOUT 1
+#define CONFIG_ENV_IS_IN_NAND 1
+#elif defined(CONFIG_CMD_ONENAND)
#define CONFIG_ENV_IS_IN_ONENAND 1
+#endif
#define ONENAND_ENV_OFFSET 0x260000 /* environment starts here */
#define SMNAND_ENV_OFFSET 0x260000 /* environment starts here */

@@ -300,6 +308,23 @@ extern unsigned int boot_flash_sec;
extern unsigned int boot_flash_type;
#endif

+
+#define WRITE_NAND_COMMAND(d, adr)\
+ writel(d, &nand_cs_base->nand_cmd)
+#define WRITE_NAND_ADDRESS(d, adr)\
+ writel(d, &nand_cs_base->nand_adr)
+#define WRITE_NAND(d, adr) writew(d, &nand_cs_base->nand_dat)
+#define READ_NAND(adr) readl(&nand_cs_base->nand_dat)
+
+/* Other NAND Access APIs */
+#define NAND_WP_OFF() do {readl(&gpmc_cfg_base->config) |= GPMC_CONFIG_WP; } \
+ while (0)
+#define NAND_WP_ON() do {readl(&gpmc_cfg_base->config) &= ~GPMC_CONFIG_WP; } \
+ while (0)
+#define NAND_DISABLE_CE(nand)
+#define NAND_ENABLE_CE(nand)
+#define NAND_WAIT_READY(nand) udelay(10)
+
/*----------------------------------------------------------------------------
* SMSC9115 Ethernet from SMSC9118 family
*----------------------------------------------------------------------------
--
1.6.2.4