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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 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
*/
#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 <linux/gpio/machine.h>
#include "hardware.h"
#include "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,
};
static struct gpiod_lookup_table simone_mmc_spi_gpio_table = {
.dev_id = "mmc_spi.0", /* "mmc_spi" @ CS0 */
.table = {
/* Card detect */
GPIO_LOOKUP_IDX("A", 0, NULL, 0, GPIO_ACTIVE_LOW),
{ },
},
};
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 struct gpiod_lookup_table simone_spi_cs_gpio_table = {
.dev_id = "spi0",
.table = {
GPIO_LOOKUP("A", 1, "cs", GPIO_ACTIVE_LOW),
{ },
},
};
static struct ep93xx_spi_info simone_spi_info __initdata = {
.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));
gpiod_add_lookup_table(&simone_mmc_spi_gpio_table);
gpiod_add_lookup_table(&simone_spi_cs_gpio_table);
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,
.nr_irqs = NR_EP93XX_IRQS,
.map_io = ep93xx_map_io,
.init_irq = ep93xx_init_irq,
.init_time = ep93xx_timer_init,
.init_machine = simone_init_machine,
.restart = ep93xx_restart,
MACHINE_END
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