diff options
Diffstat (limited to 'arch/arm/mach-ep93xx/simone.c')
-rw-r--r-- | arch/arm/mach-ep93xx/simone.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/arch/arm/mach-ep93xx/simone.c b/arch/arm/mach-ep93xx/simone.c new file mode 100644 index 000000000..41aa57581 --- /dev/null +++ b/arch/arm/mach-ep93xx/simone.c @@ -0,0 +1,122 @@ +/* + * arch/arm/mach-ep93xx/simone.c + * Simplemachines Sim.One support. + * + * Copyright (C) 2010 Ryan Mallon + * + * Based on the 2.6.24.7 support: + * Copyright (C) 2009 Simplemachines + * MMC support by Peter Ivanov <ivanovp@gmail.com>, 2007 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/mmc/host.h> +#include <linux/spi/spi.h> +#include <linux/spi/mmc_spi.h> +#include <linux/platform_data/video-ep93xx.h> +#include <linux/platform_data/spi-ep93xx.h> +#include <linux/gpio.h> + +#include <mach/hardware.h> +#include <mach/gpio-ep93xx.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include "soc.h" + +static struct ep93xx_eth_data __initdata simone_eth_data = { + .phy_id = 1, +}; + +static struct ep93xxfb_mach_info __initdata simone_fb_info = { + .flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING, +}; + +static struct mmc_spi_platform_data simone_mmc_spi_data = { + .detect_delay = 500, + .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, + .flags = MMC_SPI_USE_CD_GPIO, + .cd_gpio = EP93XX_GPIO_LINE_EGPIO0, + .cd_debounce = 1, +}; + +static struct spi_board_info simone_spi_devices[] __initdata = { + { + .modalias = "mmc_spi", + .platform_data = &simone_mmc_spi_data, + /* + * We use 10 MHz even though the maximum is 3.7 MHz. The driver + * will limit it automatically to max. frequency. + */ + .max_speed_hz = 10 * 1000 * 1000, + .bus_num = 0, + .chip_select = 0, + .mode = SPI_MODE_3, + }, +}; + +/* + * Up to v1.3, the Sim.One used SFRMOUT as SD card chip select, but this goes + * low between multi-message command blocks. From v1.4, it uses a GPIO instead. + * v1.3 parts will still work, since the signal on SFRMOUT is automatic. + */ +static int simone_spi_chipselects[] __initdata = { + EP93XX_GPIO_LINE_EGPIO1, +}; + +static struct ep93xx_spi_info simone_spi_info __initdata = { + .chipselect = simone_spi_chipselects, + .num_chipselect = ARRAY_SIZE(simone_spi_chipselects), + .use_dma = 1, +}; + +static struct i2c_board_info __initdata simone_i2c_board_info[] = { + { + I2C_BOARD_INFO("ds1337", 0x68), + }, +}; + +static struct platform_device simone_audio_device = { + .name = "simone-audio", + .id = -1, +}; + +static void __init simone_register_audio(void) +{ + ep93xx_register_ac97(); + platform_device_register(&simone_audio_device); +} + +static void __init simone_init_machine(void) +{ + ep93xx_init_devices(); + ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M); + ep93xx_register_eth(&simone_eth_data, 1); + ep93xx_register_fb(&simone_fb_info); + ep93xx_register_i2c(simone_i2c_board_info, + ARRAY_SIZE(simone_i2c_board_info)); + ep93xx_register_spi(&simone_spi_info, simone_spi_devices, + ARRAY_SIZE(simone_spi_devices)); + simone_register_audio(); +} + +MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board") + /* Maintainer: Ryan Mallon */ + .atag_offset = 0x100, + .map_io = ep93xx_map_io, + .init_irq = ep93xx_init_irq, + .init_time = ep93xx_timer_init, + .init_machine = simone_init_machine, + .init_late = ep93xx_init_late, + .restart = ep93xx_restart, +MACHINE_END |