diff options
| author | pekon gupta <pekon@ti.com> | 2014-07-22 16:03:24 +0530 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-08-25 10:48:12 -0400 |
| commit | 9352697aa060e9b1b5d891e4490fdfa6f5ba6114 (patch) | |
| tree | 3b99b784f58c2f384f4fe18e562b6911d8f130f9 /include | |
| parent | 54a97d2849979acd84a0475486edf0d0c18e47c7 (diff) | |
| download | u-boot-9352697aa060e9b1b5d891e4490fdfa6f5ba6114.tar.gz | |
board/ti/dra7xx: add support for parallel NOR
This patch adds support for parallel NOR device (S29GL512S10) present on J6-EVM.
The Flash device is connected to GPMC controller on chip-select[0] and accessed
as memory-mapped device. It has data-witdh=x16, capacity-64MBytes(512Mbits) and
is CFI compatible.
As multiple devices are share GPMC pins on this board, so following board
settings are required to detect NOR device:
SW5.1 (NAND_BOOTn) = OFF (logic-1)
SW5.2 (NOR_BOOTn) = ON (logic-0) /* Active-low */
SW5.3 (eMMC_BOOTn) = OFF (logic-1)
SW5.4 (QSPI_BOOTn) = OFF (logic-1)
And also set appropriate SYSBOOT configurations:
SW3.1 (SYSBOOT[ 8])= ON (logic-1) /* selects SYS_CLK1 speed */
SW3.2 (SYSBOOT[ 9])= OFF (logic-0) /* selects SYS_CLK1 speed */
SW3.3 (SYSBOOT[10])= ON (logic-1) /* wait-pin monitoring = enabled */
SW3.4 (SYSBOOT[11])= OFF (logic-0) /* device type: Non Muxed */
SW3.5 (SYSBOOT[12])= OFF (logic-0) /* device type: Non Muxed */
SW3.6 (SYSBOOT[13])= ON (logic-1) /* device bus-width: 1(x16) */
SW3.7 (SYSBOOT[14])= OFF (logic-0) /* reserved */
SW3.8 (SYSBOOT[15])= ON (logic-1) /* reserved */
Also, following changes are required to enable NOR Flash support in
dra7xx_evm board profile:
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/dra7xx_evm.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h index 10c88dcf96..d7d6d304c6 100644 --- a/include/configs/dra7xx_evm.h +++ b/include/configs/dra7xx_evm.h @@ -193,4 +193,42 @@ #endif #endif /* !CONFIG_NAND */ +/* Parallel NOR Support */ +#if defined(CONFIG_NOR) +/* NOR: device related configs */ +#define CONFIG_SYS_MAX_FLASH_SECT 512 +#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT +#define CONFIG_SYS_FLASH_SIZE (64 * 1024 * 1024) /* 64 MB */ +/* #define CONFIG_INIT_IGNORE_ERROR */ +#undef CONFIG_SYS_NO_FLASH +#define CONFIG_CMD_FLASH +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE +#define CONFIG_SYS_FLASH_PROTECTION +#define CONFIG_SYS_FLASH_CFI +#define CONFIG_FLASH_CFI_DRIVER +#define CONFIG_FLASH_CFI_MTD +#define CONFIG_SYS_MAX_FLASH_BANKS 1 +#define CONFIG_SYS_FLASH_BASE (0x08000000) +#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE +/* Reduce SPL size by removing unlikey targets */ +#ifdef CONFIG_NOR_BOOT +#define CONFIG_ENV_IS_IN_FLASH +#define CONFIG_ENV_SECT_SIZE (128 * 1024) /* 128 KiB */ +#define MTDIDS_DEFAULT "nor0=physmap-flash.0" +#define MTDPARTS_DEFAULT "mtdparts=physmap-flash.0:" \ + "128k(NOR.SPL)," \ + "128k(NOR.SPL.backup1)," \ + "128k(NOR.SPL.backup2)," \ + "128k(NOR.SPL.backup3)," \ + "256k(NOR.u-boot-spl-os)," \ + "1m(NOR.u-boot)," \ + "128k(NOR.u-boot-env)," \ + "128k(NOR.u-boot-env.backup1)," \ + "8m(NOR.kernel)," \ + "-(NOR.rootfs)" +#define CONFIG_ENV_OFFSET 0x001c0000 +#define CONFIG_ENV_OFFSET_REDUND 0x001e0000 +#endif +#endif /* NOR support */ + #endif /* __CONFIG_DRA7XX_EVM_H */ |