d2951dfa07
Simplify things by making the S3CMCI driver just use slot GPIO with descriptors instead of passing around the global GPIO numbers that we want to get rid of. Getting the names of the GPIO chips into the machine descriptor tables was a bit of a challenge but I think I have them right. The platform data supports passing in inversion flags, but no platform is using them, and it is highly unlikely that we will add more, so drop them. The long term plan is to let the inversion flags on the GPIO machine descriptor do the job. 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: Jaehoon Chung <jh80.chung@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Sergio Prado <sergio.prado@e-labworks.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
228 lines
5.3 KiB
C
228 lines
5.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
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// Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
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// and modifications by SBZ <sbz@spgui.org> and
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// Weibing <http://weibing.blogbus.com>
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//
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// For product information, visit http://www.arm.com/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/gpio/machine.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/serial_core.h>
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#include <linux/serial_s3c.h>
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#include <linux/dm9000.h>
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#include <linux/platform_device.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <mach/hardware.h>
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#include <mach/fb.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <mach/regs-gpio.h>
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#include <mach/regs-lcd.h>
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#include <mach/gpio-samsung.h>
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#include <linux/platform_data/mtd-nand-s3c2410.h>
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#include <linux/platform_data/i2c-s3c2410.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/rawnand.h>
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#include <linux/mtd/nand_ecc.h>
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#include <linux/mtd/partitions.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <linux/platform_data/mmc-s3cmci.h>
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#include <plat/samsung-time.h>
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#include "common.h"
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static struct map_desc at2440evb_iodesc[] __initdata = {
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/* Nothing here */
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};
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#define UCON S3C2410_UCON_DEFAULT
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#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
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#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
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static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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.clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
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},
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[1] = {
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.hwport = 1,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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.clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
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},
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};
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/* NAND Flash on AT2440EVB board */
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static struct mtd_partition __initdata at2440evb_default_nand_part[] = {
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[0] = {
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.name = "Boot Agent",
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.size = SZ_256K,
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.offset = 0,
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},
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[1] = {
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.name = "Kernel",
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.size = SZ_2M,
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.offset = SZ_256K,
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},
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[2] = {
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.name = "Root",
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.offset = SZ_256K + SZ_2M,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct s3c2410_nand_set __initdata at2440evb_nand_sets[] = {
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[0] = {
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.name = "nand",
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.nr_chips = 1,
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.nr_partitions = ARRAY_SIZE(at2440evb_default_nand_part),
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.partitions = at2440evb_default_nand_part,
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},
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};
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static struct s3c2410_platform_nand __initdata at2440evb_nand_info = {
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.tacls = 25,
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.twrph0 = 55,
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.twrph1 = 40,
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.nr_sets = ARRAY_SIZE(at2440evb_nand_sets),
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.sets = at2440evb_nand_sets,
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.ecc_mode = NAND_ECC_SOFT,
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};
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/* DM9000AEP 10/100 ethernet controller */
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static struct resource at2440evb_dm9k_resource[] = {
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[0] = DEFINE_RES_MEM(S3C2410_CS3, 4),
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[1] = DEFINE_RES_MEM(S3C2410_CS3 + 4, 4),
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[2] = DEFINE_RES_NAMED(IRQ_EINT7, 1, NULL, IORESOURCE_IRQ \
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| IORESOURCE_IRQ_HIGHEDGE),
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};
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static struct dm9000_plat_data at2440evb_dm9k_pdata = {
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.flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
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};
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static struct platform_device at2440evb_device_eth = {
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.name = "dm9000",
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.id = -1,
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.num_resources = ARRAY_SIZE(at2440evb_dm9k_resource),
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.resource = at2440evb_dm9k_resource,
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.dev = {
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.platform_data = &at2440evb_dm9k_pdata,
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},
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};
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static struct s3c24xx_mci_pdata at2440evb_mci_pdata __initdata = {
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/* Intentionally left blank */
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};
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static struct gpiod_lookup_table at2440evb_mci_gpio_table = {
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.dev_id = "s3c2410-sdi",
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.table = {
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/* Card detect S3C2410_GPG(10) */
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GPIO_LOOKUP("GPG", 10, "cd", GPIO_ACTIVE_LOW),
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{ },
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},
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};
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/* 7" LCD panel */
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static struct s3c2410fb_display at2440evb_lcd_cfg __initdata = {
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.lcdcon5 = S3C2410_LCDCON5_FRM565 |
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S3C2410_LCDCON5_INVVLINE |
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S3C2410_LCDCON5_INVVFRAME |
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S3C2410_LCDCON5_PWREN |
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S3C2410_LCDCON5_HWSWP,
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.type = S3C2410_LCDCON1_TFT,
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.width = 800,
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.height = 480,
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.pixclock = 33333, /* HCLK 60 MHz, divisor 2 */
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.xres = 800,
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.yres = 480,
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.bpp = 16,
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.left_margin = 88,
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.right_margin = 40,
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.hsync_len = 128,
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.upper_margin = 32,
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.lower_margin = 11,
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.vsync_len = 2,
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};
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static struct s3c2410fb_mach_info at2440evb_fb_info __initdata = {
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.displays = &at2440evb_lcd_cfg,
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.num_displays = 1,
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.default_display = 0,
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};
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static struct platform_device *at2440evb_devices[] __initdata = {
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&s3c_device_ohci,
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&s3c_device_wdt,
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&s3c_device_adc,
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&s3c_device_i2c0,
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&s3c_device_rtc,
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&s3c_device_nand,
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&s3c_device_sdi,
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&s3c_device_lcd,
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&at2440evb_device_eth,
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};
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static void __init at2440evb_map_io(void)
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{
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s3c24xx_init_io(at2440evb_iodesc, ARRAY_SIZE(at2440evb_iodesc));
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s3c24xx_init_uarts(at2440evb_uartcfgs, ARRAY_SIZE(at2440evb_uartcfgs));
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samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
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}
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static void __init at2440evb_init_time(void)
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{
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s3c2440_init_clocks(16934400);
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samsung_timer_init();
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}
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static void __init at2440evb_init(void)
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{
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s3c24xx_fb_set_platdata(&at2440evb_fb_info);
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gpiod_add_lookup_table(&at2440evb_mci_gpio_table);
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s3c24xx_mci_set_platdata(&at2440evb_mci_pdata);
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s3c_nand_set_platdata(&at2440evb_nand_info);
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s3c_i2c0_set_platdata(NULL);
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platform_add_devices(at2440evb_devices, ARRAY_SIZE(at2440evb_devices));
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}
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MACHINE_START(AT2440EVB, "AT2440EVB")
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.atag_offset = 0x100,
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.map_io = at2440evb_map_io,
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.init_machine = at2440evb_init,
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.init_irq = s3c2440_init_irq,
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.init_time = at2440evb_init_time,
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MACHINE_END
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