This patch adds support for x16 NAND device (MT29F2G16AAD) connected to GPMC chip-select[0] on DRA7xx EVM. As GPMC pins are shared by multiple devices, so in addition to this patch following board settings are required for NAND device detection [1]:
SW5.9 (GPMC_WPN) = OFF (logic-1) SW5.1 (NAND_BOOTn) = ON (logic-0) /* Active-low */ SW5.2 (NOR_BOOTn) = OFF (logic-1) SW5.3 (eMMC_BOOTn) = OFF (logic-1) SW5.4 (QSPI_BOOTn) = OFF (logic-1)
And also set appropriate SYSBOOT configurations SW2.1 (SYSBOOT[0]) = ON (logic-1) /* selects NAND Boot */ SW2.2 (SYSBOOT[1]) = OFF (logic-0) /* selects NAND Boot */ SW2.3 (SYSBOOT[2]) = OFF (logic-0) /* selects NAND Boot */ SW2.4 (SYSBOOT[3]) = OFF (logic-0) /* selects NAND Boot */ SW2.5 (SYSBOOT[4]) = ON (logic-1) /* selects NAND Boot */ SW2.6 (SYSBOOT[5]) = ON (logic-1) /* selects NAND Boot */ SW2.7 (SYSBOOT[6]) = OFF (logic-0) /* reserved */ SW2.8 (SYSBOOT[7]) = OFF (logic-0) /* reserved */
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: Addr/Data Muxed */ SW3.5 (SYSBOOT[12])= ON (logic-1) /* device type: Addr/Data 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 */
Following changes are required in board.cfg to enable NAND on J6-EVM: diff --git a/boards.cfg b/boards.cfg -Active arm armv7 omap5 ti dra7xx dra7xx_evm dra7xx_evm:CONS_INDEX=1 Lokesh Vutla lokeshvutla@ti.com +Active arm armv7 omap5 ti dra7xx dra7xx_evm dra7xx_evm:CONS_INDEX=1,NAND Lokesh Vutla lokeshvutla@ti.com
[1] http://processors.wiki.ti.com/index.php/Linux_Core_NAND_User%27s_Guide#Board...
Signed-off-by: Pekon Gupta pekon@ti.com --- board/ti/dra7xx/mux_data.h | 28 +++++++++++++++++++++++++ include/configs/dra7xx_evm.h | 50 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 78 insertions(+)
diff --git a/board/ti/dra7xx/mux_data.h b/board/ti/dra7xx/mux_data.h index c9e202a..035e862 100644 --- a/board/ti/dra7xx/mux_data.h +++ b/board/ti/dra7xx/mux_data.h @@ -56,6 +56,33 @@ const struct pad_conf_entry core_padconf_array_essential[] = { {RGMII0_RXD2, (IEN | M0) }, {RGMII0_RXD1, (IEN | M0) }, {RGMII0_RXD0, (IEN | M0) }, +#ifdef CONFIG_NAND + /* NAND / NOR pin-mux */ + {GPMC_AD0 , M0 | IEN | PDIS}, /* GPMC_AD0 */ + {GPMC_AD1 , M0 | IEN | PDIS}, /* GPMC_AD1 */ + {GPMC_AD2 , M0 | IEN | PDIS}, /* GPMC_AD2 */ + {GPMC_AD3 , M0 | IEN | PDIS}, /* GPMC_AD3 */ + {GPMC_AD4 , M0 | IEN | PDIS}, /* GPMC_AD4 */ + {GPMC_AD5 , M0 | IEN | PDIS}, /* GPMC_AD5 */ + {GPMC_AD6 , M0 | IEN | PDIS}, /* GPMC_AD6 */ + {GPMC_AD7 , M0 | IEN | PDIS}, /* GPMC_AD7 */ + {GPMC_AD8 , M0 | IEN | PDIS}, /* GPMC_AD8 */ + {GPMC_AD9 , M0 | IEN | PDIS}, /* GPMC_AD9 */ + {GPMC_AD10, M0 | IEN | PDIS}, /* GPMC_AD10 */ + {GPMC_AD11, M0 | IEN | PDIS}, /* GPMC_AD11 */ + {GPMC_AD12, M0 | IEN | PDIS}, /* GPMC_AD12 */ + {GPMC_AD13, M0 | IEN | PDIS}, /* GPMC_AD13 */ + {GPMC_AD14, M0 | IEN | PDIS}, /* GPMC_AD14 */ + {GPMC_AD15, M0 | IEN | PDIS}, /* GPMC_AD15 */ + {GPMC_CS0, M0 | IDIS | PEN | PTU}, /* GPMC chip-select */ + {GPMC_ADVN_ALE, M0 | IDIS | PEN | PTD}, /* GPMC Addr latch */ + {GPMC_OEN_REN, M0 | IDIS | PEN | PTU}, /* GPMC Read enable */ + {GPMC_WEN, M0 | IDIS | PEN | PTU}, /* GPMC Write enable_n */ + {GPMC_BEN0, M0 | IDIS | PEN | PTD}, /* GPMC Byte/Column En */ + {GPMC_WAIT0, M0 | IEN | PEN | PTU}, /* GPMC Wait/Ready */ + /* GPMC_WPN (Write Protect) is controlled by DIP Switch SW10(12) */ +#else + /* QSPI pin-mux */ {GPMC_A13, (IEN | PDIS | M1)}, /* QSPI1_RTCLK */ {GPMC_A14, (IEN | PDIS | M1)}, /* QSPI1_D[3] */ {GPMC_A15, (IEN | PDIS | M1)}, /* QSPI1_D[2] */ @@ -66,6 +93,7 @@ const struct pad_conf_entry core_padconf_array_essential[] = { {GPMC_A4, (IEN | PDIS | M1)}, /* QSPI1_CS3 */ {GPMC_CS2, (IEN | PTU | PDIS | M1)}, /* QSPI1_CS0 */ {GPMC_CS3, (IEN | PTU | PDIS | M1)}, /* QSPI1_CS1*/ +#endif /* CONFIG_NAND */ {USB2_DRVVBUS, (M0 | IEN | FSC) }, }; #endif /* _MUX_DATA_DRA7XX_H_ */ diff --git a/include/configs/dra7xx_evm.h b/include/configs/dra7xx_evm.h index 8d0a0eb..10c88dc 100644 --- a/include/configs/dra7xx_evm.h +++ b/include/configs/dra7xx_evm.h @@ -143,4 +143,54 @@ #define CONFIG_SYS_SCSI_MAX_DEVICE (CONFIG_SYS_SCSI_MAX_SCSI_ID * \ CONFIG_SYS_SCSI_MAX_LUN)
+/* NAND support */ +#ifdef CONFIG_NAND +/* NAND: device related configs */ +#define CONFIG_SYS_NAND_PAGE_SIZE 2048 +#define CONFIG_SYS_NAND_OOBSIZE 64 +#define CONFIG_SYS_NAND_BLOCK_SIZE (128*1024) +#define CONFIG_SYS_NAND_BUSWIDTH_16BIT +#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_BCH8_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, } +#define CONFIG_SYS_NAND_ECCSIZE 512 +#define CONFIG_SYS_NAND_ECCBYTES 14 +#define MTDIDS_DEFAULT "nand0=nand.0" +#define MTDPARTS_DEFAULT "mtdparts=nand.0:" \ + "128k(NAND.SPL)," \ + "128k(NAND.SPL.backup1)," \ + "128k(NAND.SPL.backup2)," \ + "128k(NAND.SPL.backup3)," \ + "256k(NAND.u-boot-spl-os)," \ + "1m(NAND.u-boot)," \ + "128k(NAND.u-boot-env)," \ + "128k(NAND.u-boot-env.backup1)," \ + "8m(NAND.kernel)," \ + "-(NAND.rootfs)" +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x000c0000 +/* 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 0x00080000 /* os-boot params*/ +#define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x00200000 /* kernel offset */ +#define CONFIG_CMD_SPL_WRITE_SIZE 0x2000 +#endif +#endif /* !CONFIG_NAND */ + #endif /* __CONFIG_DRA7XX_EVM_H */