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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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0d0644ebc6
mvsdio_platform_data allows to pass card detect and write protect gpio numbers to the driver. Some kirkwood boards don't use both pins as they are not connected, and don't set the corresponding value in platform_data. This will leave the unset values in platform_data initialized as 0, which is in fact a valid gpio pin. mvsdio will grab that pin and configure it as gpio, which in turn breaks nand controller as mpp0 also carries nand_io2. This patch fixes the above by initializing unused gpio functions in the platform_data with an invalid (-1) value. Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Reported-by: Soeren Moch <smoch@web.de> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
134 lines
3.0 KiB
C
134 lines
3.0 KiB
C
/*
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* arch/arm/mach-kirkwood/guruplug-setup.c
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*
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* Marvell GuruPlug Reference Board Setup
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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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/mtd/partitions.h>
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#include <linux/ata_platform.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/gpio.h>
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#include <linux/leds.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <mach/kirkwood.h>
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#include <linux/platform_data/mmc-mvsdio.h>
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#include "common.h"
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#include "mpp.h"
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static struct mtd_partition guruplug_nand_parts[] = {
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{
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.name = "u-boot",
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.offset = 0,
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.size = SZ_1M
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}, {
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.name = "uImage",
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.offset = MTDPART_OFS_NXTBLK,
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.size = SZ_4M
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}, {
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.name = "root",
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.offset = MTDPART_OFS_NXTBLK,
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.size = MTDPART_SIZ_FULL
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},
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};
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static struct mv643xx_eth_platform_data guruplug_ge00_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR(0),
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};
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static struct mv643xx_eth_platform_data guruplug_ge01_data = {
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.phy_addr = MV643XX_ETH_PHY_ADDR(1),
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};
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static struct mv_sata_platform_data guruplug_sata_data = {
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.n_ports = 1,
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};
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static struct mvsdio_platform_data guruplug_mvsdio_data = {
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/* unfortunately the CD signal has not been connected */
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.gpio_card_detect = -1,
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.gpio_write_protect = -1,
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};
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static struct gpio_led guruplug_led_pins[] = {
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{
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.name = "guruplug:red:health",
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.gpio = 46,
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.active_low = 1,
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},
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{
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.name = "guruplug:green:health",
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.gpio = 47,
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.active_low = 1,
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},
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{
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.name = "guruplug:red:wmode",
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.gpio = 48,
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.active_low = 1,
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},
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{
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.name = "guruplug:green:wmode",
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.gpio = 49,
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.active_low = 1,
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},
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};
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static struct gpio_led_platform_data guruplug_led_data = {
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.leds = guruplug_led_pins,
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.num_leds = ARRAY_SIZE(guruplug_led_pins),
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};
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static struct platform_device guruplug_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &guruplug_led_data,
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}
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};
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static unsigned int guruplug_mpp_config[] __initdata = {
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MPP46_GPIO, /* M_RLED */
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MPP47_GPIO, /* M_GLED */
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MPP48_GPIO, /* B_RLED */
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MPP49_GPIO, /* B_GLED */
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0
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};
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static void __init guruplug_init(void)
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{
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/*
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* Basic setup. Needs to be called early.
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*/
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kirkwood_init();
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kirkwood_mpp_conf(guruplug_mpp_config);
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kirkwood_uart0_init();
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kirkwood_nand_init(ARRAY_AND_SIZE(guruplug_nand_parts), 25);
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kirkwood_ehci_init();
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kirkwood_ge00_init(&guruplug_ge00_data);
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kirkwood_ge01_init(&guruplug_ge01_data);
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kirkwood_sata_init(&guruplug_sata_data);
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kirkwood_sdio_init(&guruplug_mvsdio_data);
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platform_device_register(&guruplug_leds);
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}
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MACHINE_START(GURUPLUG, "Marvell GuruPlug Reference Board")
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/* Maintainer: Siddarth Gore <gores@marvell.com> */
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.atag_offset = 0x100,
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.init_machine = guruplug_init,
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.map_io = kirkwood_map_io,
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.init_early = kirkwood_init_early,
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.init_irq = kirkwood_init_irq,
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.init_time = kirkwood_timer_init,
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.restart = kirkwood_restart,
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MACHINE_END
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