mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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cea2b4210d
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32953 3c298f89-4303-0410-b956-a3cf2f4a3e73
139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*
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* Copyright (C) 2011 Thomas Langer <thomas.langer@lantiq.com>
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* Copyright (C) 2011 John Crispin <blogic@openwrt.org>
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*/
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#include <linux/platform_device.h>
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#include <linux/mtd/partitions.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/spi_gpio.h>
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#include <linux/spi/eeprom.h>
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#include "../machtypes.h"
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#include "devices.h"
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static struct mtd_partition easy98000_nor_partitions[] = {
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{
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.name = "uboot",
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.offset = 0x0,
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.size = 0x40000,
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},
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{
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.name = "uboot_env",
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.offset = 0x40000,
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.size = 0x40000, /* 2 sectors for redundant env. */
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},
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{
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.name = "linux",
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.offset = 0x80000,
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.size = 0xF80000, /* map only 16 MiB */
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},
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};
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struct physmap_flash_data easy98000_nor_flash_data = {
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.nr_parts = ARRAY_SIZE(easy98000_nor_partitions),
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.parts = easy98000_nor_partitions,
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};
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static struct flash_platform_data easy98000_spi_flash_platform_data = {
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.name = "sflash",
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.parts = easy98000_nor_partitions,
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.nr_parts = ARRAY_SIZE(easy98000_nor_partitions)
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};
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static struct spi_board_info easy98000_spi_flash_data __initdata = {
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.modalias = "m25p80",
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.bus_num = 0,
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.chip_select = 0,
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.max_speed_hz = 10 * 1000 * 1000,
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.mode = SPI_MODE_3,
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.platform_data = &easy98000_spi_flash_platform_data
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};
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/* setup gpio based spi bus/device for access to the eeprom on the board */
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#define SPI_GPIO_MRST 102
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#define SPI_GPIO_MTSR 103
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#define SPI_GPIO_CLK 104
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#define SPI_GPIO_CS0 105
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#define SPI_GPIO_CS1 106
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#define SPI_GPIO_BUS_NUM 1
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static struct spi_gpio_platform_data easy98000_spi_gpio_data = {
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.sck = SPI_GPIO_CLK,
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.mosi = SPI_GPIO_MTSR,
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.miso = SPI_GPIO_MRST,
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.num_chipselect = 2,
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};
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static struct platform_device easy98000_spi_gpio_device = {
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.name = "spi_gpio",
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.id = SPI_GPIO_BUS_NUM,
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.dev.platform_data = &easy98000_spi_gpio_data,
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};
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static struct spi_eeprom at25160n = {
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.byte_len = 16 * 1024 / 8,
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.name = "at25160n",
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.page_size = 32,
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.flags = EE_ADDR2,
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};
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static struct spi_board_info easy98000_spi_gpio_devices __initdata = {
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.modalias = "at25",
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.bus_num = SPI_GPIO_BUS_NUM,
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.max_speed_hz = 1000 * 1000,
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.mode = SPI_MODE_3,
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.chip_select = 1,
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.controller_data = (void *) SPI_GPIO_CS1,
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.platform_data = &at25160n,
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};
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static void __init
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easy98000_init_common(void)
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{
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spi_register_board_info(&easy98000_spi_gpio_devices, 1);
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platform_device_register(&easy98000_spi_gpio_device);
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falcon_register_i2c();
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}
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static void __init
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easy98000_init(void)
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{
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easy98000_init_common();
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ltq_register_nor(&easy98000_nor_flash_data);
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}
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static void __init
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easy98000sf_init(void)
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{
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easy98000_init_common();
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falcon_register_spi_flash(&easy98000_spi_flash_data);
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}
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static void __init
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easy98000nand_init(void)
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{
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easy98000_init_common();
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falcon_register_nand();
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}
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MIPS_MACHINE(LANTIQ_MACH_EASY98000,
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"EASY98000",
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"EASY98000 Eval Board",
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easy98000_init);
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MIPS_MACHINE(LANTIQ_MACH_EASY98000SF,
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"EASY98000SF",
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"EASY98000 Eval Board (Serial Flash)",
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easy98000sf_init);
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MIPS_MACHINE(LANTIQ_MACH_EASY98000NAND,
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"EASY98000NAND",
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"EASY98000 Eval Board (NAND Flash)",
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easy98000nand_init);
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