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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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5716fb9bd9
Switch the SPI MMC driver to use GPIO descriptors internally and just look those up using the standard slot GPIO functions mmc_gpiod_request_cd() and mmc_gpiod_request_ro(). Make sure to request index 0 and 1 in accordance with the SPI MMC DT binding, and add the same GPIOs in machine descriptor tables on all boards that use SPI MMC in board files. The lines are flagged as GPIO_ACTIVE_[LOW|HIGH] as that is what they are, and since we can now rely on the descriptors to have the right polarity, we set the "override_active_level" to false in mmc_gpiod_request_cd() and mmc_gpiod_request_ro(). Cc: Hartley Sweeten <hsweeten@visionengravers.com> # Vision EP9307 Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
131 lines
3.4 KiB
C
131 lines
3.4 KiB
C
/*
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* arch/arm/mach-ep93xx/simone.c
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* Simplemachines Sim.One support.
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*
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* Copyright (C) 2010 Ryan Mallon
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*
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* Based on the 2.6.24.7 support:
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* Copyright (C) 2009 Simplemachines
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* MMC support by Peter Ivanov <ivanovp@gmail.com>, 2007
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/i2c.h>
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#include <linux/mmc/host.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/mmc_spi.h>
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#include <linux/platform_data/video-ep93xx.h>
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#include <linux/platform_data/spi-ep93xx.h>
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#include <linux/gpio.h>
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#include <linux/gpio/machine.h>
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#include <mach/hardware.h>
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#include <mach/gpio-ep93xx.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include "soc.h"
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static struct ep93xx_eth_data __initdata simone_eth_data = {
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.phy_id = 1,
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};
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static struct ep93xxfb_mach_info __initdata simone_fb_info = {
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.flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
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};
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static struct mmc_spi_platform_data simone_mmc_spi_data = {
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.detect_delay = 500,
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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};
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static struct gpiod_lookup_table simone_mmc_spi_gpio_table = {
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.dev_id = "mmc_spi.0", /* "mmc_spi" @ CS0 */
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.table = {
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/* Card detect */
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GPIO_LOOKUP_IDX("A", 0, NULL, 0, GPIO_ACTIVE_LOW),
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{ },
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},
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};
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static struct spi_board_info simone_spi_devices[] __initdata = {
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{
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.modalias = "mmc_spi",
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.platform_data = &simone_mmc_spi_data,
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/*
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* We use 10 MHz even though the maximum is 3.7 MHz. The driver
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* will limit it automatically to max. frequency.
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*/
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.max_speed_hz = 10 * 1000 * 1000,
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.bus_num = 0,
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.chip_select = 0,
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.mode = SPI_MODE_3,
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},
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};
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/*
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* Up to v1.3, the Sim.One used SFRMOUT as SD card chip select, but this goes
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* low between multi-message command blocks. From v1.4, it uses a GPIO instead.
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* v1.3 parts will still work, since the signal on SFRMOUT is automatic.
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*/
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static int simone_spi_chipselects[] __initdata = {
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EP93XX_GPIO_LINE_EGPIO1,
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};
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static struct ep93xx_spi_info simone_spi_info __initdata = {
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.chipselect = simone_spi_chipselects,
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.num_chipselect = ARRAY_SIZE(simone_spi_chipselects),
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.use_dma = 1,
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};
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static struct i2c_board_info __initdata simone_i2c_board_info[] = {
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{
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I2C_BOARD_INFO("ds1337", 0x68),
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},
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};
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static struct platform_device simone_audio_device = {
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.name = "simone-audio",
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.id = -1,
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};
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static void __init simone_register_audio(void)
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{
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ep93xx_register_ac97();
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platform_device_register(&simone_audio_device);
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}
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static void __init simone_init_machine(void)
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{
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ep93xx_init_devices();
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ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
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ep93xx_register_eth(&simone_eth_data, 1);
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ep93xx_register_fb(&simone_fb_info);
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ep93xx_register_i2c(simone_i2c_board_info,
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ARRAY_SIZE(simone_i2c_board_info));
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gpiod_add_lookup_table(&simone_mmc_spi_gpio_table);
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ep93xx_register_spi(&simone_spi_info, simone_spi_devices,
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ARRAY_SIZE(simone_spi_devices));
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simone_register_audio();
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}
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MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board")
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/* Maintainer: Ryan Mallon */
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.atag_offset = 0x100,
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.map_io = ep93xx_map_io,
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.init_irq = ep93xx_init_irq,
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.init_time = ep93xx_timer_init,
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.init_machine = simone_init_machine,
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.init_late = ep93xx_init_late,
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.restart = ep93xx_restart,
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MACHINE_END
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