From e53ad4b445464327aebd1c5ea6260b7bb9b80ae7 Mon Sep 17 00:00:00 2001 From: pekon gupta Date: Tue, 22 Jul 2014 16:03:22 +0530 Subject: board/ti/am43xx: add support for parallel NAND This patch adds support for NAND device connected to GPMC chip-select on following AM43xx EVM boards. am437x-gp-evm: On this board, NAND Flash signals are muxed with eMMC, thus at a time either eMMC or NAND can be enabled. Selection between eMMC and NAND is controlled by: (a) Statically using Jumper on connecter (J89) present on board. (a) If Jumper on J89 is NOT used, then selection can be dynamically controlled by driving SPI2_CS0[MUX_MODE=GPIO] pin via software: SPI2_CS0 == 0: NAND (default) SPI2_CS0 == 1: eMMC am43x-epos-evm: On this board, NAND Flash control lines are muxed with QSPI, Thus only one of the two can be used at a time. Selection is controlled by: (a) Dynamically driving following GPIO pin from software GPMC_A0(GPIO) == 0 NAND is selected (default) NAND device (MT29F4G08AB) on these boards has: - data-width=8bits - blocksize=256KB - pagesize=4KB - oobsize=224 bytes For above NAND device, ROM code expects the boot-loader to be flashed in BCH16 ECC scheme for NAND boot, So by default BCH16 ECC is enabled for AM43xx EVMs. Signed-off-by: Pekon Gupta --- include/configs/am43xx_evm.h | 64 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) (limited to 'include/configs/am43xx_evm.h') diff --git a/include/configs/am43xx_evm.h b/include/configs/am43xx_evm.h index e26204025f..070782774d 100644 --- a/include/configs/am43xx_evm.h +++ b/include/configs/am43xx_evm.h @@ -265,4 +265,68 @@ #define CONFIG_SPL_NET_SUPPORT #define CONFIG_SYS_RX_ETH_BUFFER 64 +/* NAND support */ +#ifdef CONFIG_NAND +/* NAND: device related configs */ +#define CONFIG_SYS_NAND_PAGE_SIZE 4096 +#define CONFIG_SYS_NAND_OOBSIZE 224 +#define CONFIG_SYS_NAND_BLOCK_SIZE (256*1024) +#define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \ + CONFIG_SYS_NAND_PAGE_SIZE) +#define CONFIG_SYS_NAND_5_ADDR_CYCLE +/* NAND: driver related configs */ +#define CONFIG_NAND_OMAP_GPMC +#define CONFIG_NAND_OMAP_ELM +#define CONFIG_SYS_NAND_ONFI_DETECTION +#define CONFIG_NAND_OMAP_ECCSCHEME OMAP_ECC_BCH16_CODE_HW +#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, 58, 59, \ + 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, \ + 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, \ + 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, \ + 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, \ + 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, \ + 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, \ + 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, \ + 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, \ + 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, \ + 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, \ + 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, \ + 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, \ + 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, \ + 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, \ + 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, \ + } +#define CONFIG_SYS_NAND_ECCSIZE 512 +#define CONFIG_SYS_NAND_ECCBYTES 26 +#define MTDIDS_DEFAULT "nand0=nand.0" +#define MTDPARTS_DEFAULT "mtdparts=nand.0:" \ + "256k(NAND.SPL)," \ + "256k(NAND.SPL.backup1)," \ + "256k(NAND.SPL.backup2)," \ + "256k(NAND.SPL.backup3)," \ + "512k(NAND.u-boot-spl-os)," \ + "1m(NAND.u-boot)," \ + "256k(NAND.u-boot-env)," \ + "256k(NAND.u-boot-env.backup1)," \ + "7m(NAND.kernel)," \ + "-(NAND.rootfs)" +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x00180000 +/* NAND: SPL related configs */ +#ifdef CONFIG_SPL_NAND_SUPPORT +#define CONFIG_SPL_NAND_AM33XX_BCH +#endif +/* NAND: SPL falcon mode configs */ +#ifdef CONFIG_SPL_OS_BOOT +#define CONFIG_CMD_SPL_NAND_OFS 0x00100000 /* os parameters */ +#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x00300000 /* kernel offset */ +#define CONFIG_CMD_SPL_WRITE_SIZE CONFIG_SYS_NAND_BLOCK_SIZE +#endif +#endif /* !CONFIG_NAND */ + #endif /* __CONFIG_AM43XX_EVM_H */ -- cgit v1.2.1