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https://github.com/brain-hackers/u-boot-brain
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b80a660338
GPMC controller needs to be configured based on bus-width of the NAND device
connected to it. Also, dynamic detection of NAND bus-width from on-chip ONFI
parameters is not possible in following situations:
SPL: SPL NAND drivers does not support ONFI parameter reading.
U-boot: GPMC controller iniitalization is done in omap_gpmc.c:board_nand_init()
which is called before probing for devices, hence any ONFI parameter
information is not available during GPMC initialization.
Thus, OMAP NAND driver expected board developers to explicitely write GPMC
configurations specific to NAND device attached on board in board files itself.
But this was troublesome for board manufacturers as they need to dive into
lengthy platform & SoC documents to find details of GPMC registers and
appropriate configurations to get NAND device working.
This patch instead adds existing CONFIG_SYS_NAND_BUSWIDTH_16BIT to board config
hich indicates that connected NAND device has x16 bus-width. And then based on
this config GPMC driver itself initializes itself based on NAND bus-width. This
keeps board developers free from knowing GPMC controller specific internals.
Signed-off-by: Pekon Gupta <pekon@ti.com>
280 lines
7.8 KiB
C
280 lines
7.8 KiB
C
/*
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* (C) Copyright 2011 Comelit Group SpA
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* Luca Ceresoli <luca.ceresoli@comelit.it>
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*
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* Based on omap3_beagle.h:
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* (C) Copyright 2006-2008
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* Texas Instruments.
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* Richard Woodruff <r-woodruff2@ti.com>
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* Syed Mohammed Khasim <x0khasim@ti.com>
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*
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* Configuration settings for the Comelit DIG297 board.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <asm/mach-types.h>
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#ifdef MACH_TYPE_OMAP3_CPS
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#error "MACH_TYPE_OMAP3_CPS has been defined properly, please remove this."
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#else
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#define MACH_TYPE_OMAP3_CPS 2751
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#endif
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#define CONFIG_MACH_TYPE MACH_TYPE_OMAP3_CPS
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/*
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* High Level Configuration Options
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*/
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#define CONFIG_OMAP /* in a TI OMAP core */
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#define CONFIG_OMAP34XX /* which is a 34XX */
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#define CONFIG_OMAP_GPIO
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#define CONFIG_OMAP_COMMON
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#define CONFIG_SYS_TEXT_BASE 0x80008000
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#define CONFIG_SDRC /* The chip has SDRC controller */
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#include <asm/arch/cpu.h> /* get chip and board defs */
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#include <asm/arch/omap3.h>
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/*
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* Display CPU and Board information
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*/
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#define CONFIG_DISPLAY_CPUINFO
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#define CONFIG_DISPLAY_BOARDINFO
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/* Clock Defines */
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#define V_OSCK 26000000 /* Clock output from T2 */
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#define V_SCLK (V_OSCK >> 1)
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#define CONFIG_MISC_INIT_R
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#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */
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#define CONFIG_SETUP_MEMORY_TAGS
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#define CONFIG_INITRD_TAG
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#define CONFIG_REVISION_TAG
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/*
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* Size of malloc() pool
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*/
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#define CONFIG_ENV_SIZE (128 << 10) /* 128 KiB */
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/* Sector */
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#define CONFIG_SYS_MALLOC_LEN (1024 << 10) /* UBI needs >= 512 kB */
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/*
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* Hardware drivers
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*/
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/*
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* NS16550 Configuration
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*/
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#define V_NS16550_CLK 48000000 /* 48MHz (APLL96/2) */
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#define CONFIG_SYS_NS16550
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#define CONFIG_SYS_NS16550_SERIAL
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#define CONFIG_SYS_NS16550_REG_SIZE (-4)
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#define CONFIG_SYS_NS16550_CLK V_NS16550_CLK
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/*
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* select serial console configuration: UART3 (ttyO2)
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*/
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#define CONFIG_CONS_INDEX 3
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#define CONFIG_SYS_NS16550_COM3 OMAP34XX_UART3
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#define CONFIG_SERIAL3 3
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/* allow to overwrite serial and ethaddr */
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#define CONFIG_ENV_OVERWRITE
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#define CONFIG_BAUDRATE 115200
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#define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600,\
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115200}
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#define CONFIG_GENERIC_MMC 1
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#define CONFIG_MMC 1
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#define CONFIG_OMAP_HSMMC 1
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#define CONFIG_DOS_PARTITION
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/* library portions to compile in */
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#define CONFIG_RBTREE
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#define CONFIG_MTD_PARTITIONS
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#define CONFIG_LZO
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/* commands to include */
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#include <config_cmd_default.h>
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#define CONFIG_CMD_FAT /* FAT support */
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#define CONFIG_CMD_UBI /* UBI Support */
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#define CONFIG_CMD_UBIFS /* UBIFS Support */
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#define CONFIG_CMD_MTDPARTS /* Enable MTD parts commands */
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#define CONFIG_MTD_DEVICE /* needed for mtdparts commands */
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#define MTDIDS_DEFAULT "nand0=omap2-nand.0"
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#define MTDPARTS_DEFAULT "mtdparts=omap2-nand.0:896k(uboot),"\
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"128k(uboot-env),3m(kernel),252m(ubi)"
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#define CONFIG_CMD_I2C /* I2C serial bus support */
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#define CONFIG_CMD_MMC /* MMC support */
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#define CONFIG_CMD_NAND /* NAND support */
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#undef CONFIG_CMD_FLASH /* flinfo, erase, protect */
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#undef CONFIG_CMD_FPGA /* FPGA configuration Support */
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#undef CONFIG_CMD_IMI /* iminfo */
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#undef CONFIG_CMD_IMLS /* List all found images */
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#define CONFIG_CMD_NET /* bootp, tftpboot, rarpboot */
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#undef CONFIG_CMD_NFS /* NFS support */
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#define CONFIG_SYS_NO_FLASH
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#define CONFIG_SYS_I2C
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#define CONFIG_SYS_OMAP24_I2C_SPEED 100000
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#define CONFIG_SYS_OMAP24_I2C_SLAVE 1
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#define CONFIG_SYS_I2C_OMAP34XX
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/*
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* TWL4030
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*/
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#define CONFIG_TWL4030_POWER
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#define CONFIG_TWL4030_LED
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/*
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* Board NAND Info.
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*/
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#define CONFIG_NAND_OMAP_GPMC
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#define CONFIG_SYS_NAND_BUSWIDTH_16BIT 16
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#define CONFIG_SYS_NAND_ADDR NAND_BASE /* physical address */
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/* to access nand */
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#define CONFIG_SYS_NAND_BASE NAND_BASE /* physical address */
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/* to access nand at */
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/* CS0 */
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#define CONFIG_SYS_MAX_NAND_DEVICE 1 /* Max number of NAND */
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#if defined(CONFIG_CMD_NET)
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/*
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* SMSC9220 Ethernet
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*/
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#define CONFIG_SMC911X
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#define CONFIG_SMC911X_32_BIT
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#define CONFIG_SMC911X_BASE 0x2C000000
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#endif /* (CONFIG_CMD_NET) */
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/* Environment information */
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#define CONFIG_BOOTDELAY 1
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"loadaddr=0x82000000\0" \
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"console=ttyO2,115200n8\0" \
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"mtdids=" MTDIDS_DEFAULT "\0" \
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"mtdparts=" MTDPARTS_DEFAULT "\0" \
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"partition=nand0,3\0"\
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"mmcroot=/dev/mmcblk0p2 rw\0" \
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"mmcrootfstype=ext3 rootwait\0" \
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"nandroot=ubi0:rootfs ro\0" \
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"nandrootfstype=ubifs\0" \
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"nfspath=/srv/nfs\0" \
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"tftpfilename=uImage\0" \
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"gatewayip=0.0.0.0\0" \
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"mmcargs=setenv bootargs console=${console} " \
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"${mtdparts} " \
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"root=${mmcroot} " \
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"rootfstype=${mmcrootfstype} " \
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"ip=${ipaddr}:${serverip}:${gatewayip}:" \
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"${netmask}:${hostname}::off\0" \
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"nandargs=setenv bootargs console=${console} " \
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"${mtdparts} " \
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"ubi.mtd=3 " \
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"root=${nandroot} " \
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"rootfstype=${nandrootfstype} " \
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"ip=${ipaddr}:${serverip}:${gatewayip}:" \
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"${netmask}:${hostname}::off\0" \
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"netargs=setenv bootargs console=${console} " \
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"${mtdparts} " \
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"root=/dev/nfs rw " \
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"nfsroot=${serverip}:${nfspath} " \
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"ip=${ipaddr}:${serverip}:${gatewayip}:" \
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"${netmask}:${hostname}::off\0" \
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"mmcboot=echo Booting from mmc ...; " \
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"run mmcargs; " \
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"bootm ${loadaddr}\0" \
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"nandboot=echo Booting from nand ...; " \
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"run nandargs; " \
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"nand read ${loadaddr} 100000 300000; " \
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"bootm ${loadaddr}\0" \
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"netboot=echo Booting from network ...; " \
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"run netargs; " \
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"tftp ${loadaddr} ${serverip}:${tftpfilename}; " \
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"bootm ${loadaddr}\0" \
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"resetenv=nand erase e0000 20000\0"\
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#define CONFIG_BOOTCOMMAND \
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"run nandboot"
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#define CONFIG_AUTO_COMPLETE
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/*
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* Miscellaneous configurable options
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*/
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#define CONFIG_SYS_LONGHELP /* undef to save memory */
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#define CONFIG_SYS_HUSH_PARSER /* use "hush" command parser */
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#define CONFIG_SYS_PROMPT "DIG297# "
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#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */
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/* Print Buffer Size */
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
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sizeof(CONFIG_SYS_PROMPT) + 16)
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#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
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/* Boot Argument Buffer Size */
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#define CONFIG_SYS_BARGSIZE (CONFIG_SYS_CBSIZE)
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#define CONFIG_SYS_MEMTEST_START (OMAP34XX_SDRC_CS0) /* memtest */
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/* works on */
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#define CONFIG_SYS_MEMTEST_END (OMAP34XX_SDRC_CS0 + \
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0x01F00000) /* 31MB */
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#define CONFIG_SYS_LOAD_ADDR (OMAP34XX_SDRC_CS0) /* default */
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/* load address */
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/*
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* OMAP3 has 12 GP timers, they can be driven by the system clock
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* (12/13/16.8/19.2/38.4MHz) or by 32KHz clock. We use 13MHz (V_SCLK).
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* This rate is divided by a local divisor.
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*/
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#define CONFIG_SYS_TIMERBASE (OMAP34XX_GPT2)
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#define CONFIG_SYS_PTV 2 /* Divisor: 2^(PTV+1) => 8 */
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/*-----------------------------------------------------------------------
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* Physical Memory Map
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*/
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#define CONFIG_NR_DRAM_BANKS 2 /* CS1 may or may not be populated */
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#define PHYS_SDRAM_1 OMAP34XX_SDRC_CS0
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#define PHYS_SDRAM_2 OMAP34XX_SDRC_CS1
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/*-----------------------------------------------------------------------
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* FLASH and environment organization
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*/
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/* **** PISMO SUPPORT *** */
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/* Configure the PISMO */
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#define PISMO1_NAND_SIZE GPMC_SIZE_128M
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#define CONFIG_SYS_MONITOR_LEN (256 << 10) /* Reserve 2 sectors */
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#define CONFIG_SYS_FLASH_BASE boot_flash_base
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/* Monitor at start of flash */
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#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_FLASH_BASE
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#define CONFIG_ENV_IS_IN_NAND
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#define SMNAND_ENV_OFFSET 0x0E0000 /* environment starts here */
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#define CONFIG_SYS_ENV_SECT_SIZE (128 << 10) /* 128 KiB */
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#define CONFIG_ENV_OFFSET SMNAND_ENV_OFFSET
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#define CONFIG_ENV_ADDR SMNAND_ENV_OFFSET
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#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1
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#define CONFIG_SYS_INIT_RAM_ADDR 0x4020f800
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#define CONFIG_SYS_INIT_RAM_SIZE 0x800
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#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \
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CONFIG_SYS_INIT_RAM_SIZE - \
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GENERATED_GBL_DATA_SIZE)
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#endif /* __CONFIG_H */
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