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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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c78a41fc04
As a final bit of preparation for converting to ARCH_MULTIPLATFORM, change the interrupt handling for s3c24xx to use sparse IRQs. Since the number of possible interrupts is already fixed and relatively small per chip, just make it use all legacy interrupts preallocated using the .nr_irqs field in the machine descriptor, rather than actually allocating domains on the fly. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
248 lines
6 KiB
C
248 lines
6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>,
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// as part of OpenInkpot project
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// Copyright (c) 2009 Promwad Innovation Company
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// Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com>
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#include <linux/kernel.h>
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#include <linux/types.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/serial_core.h>
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#include <linux/serial_s3c.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/mtd/partitions.h>
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#include <linux/gpio.h>
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#include <linux/fb.h>
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#include <linux/delay.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 <video/samsung_fimd.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include "hardware-s3c24xx.h"
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#include "regs-gpio.h"
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#include "regs-s3c2443-clock.h"
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#include "gpio-samsung.h"
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#include <linux/platform_data/leds-s3c24xx.h>
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#include <linux/platform_data/i2c-s3c2410.h>
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#include "gpio-cfg.h"
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#include "devs.h"
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#include "cpu.h"
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#include <linux/platform_data/mtd-nand-s3c2410.h>
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#include "sdhci.h"
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#include <linux/platform_data/usb-s3c2410_udc.h>
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#include <linux/platform_data/s3c-hsudc.h>
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#include "fb.h"
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#include "s3c24xx.h"
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#include "common-smdk-s3c24xx.h"
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static struct map_desc smdk2416_iodesc[] __initdata = {
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/* ISA IO Space map (memory space selected by A24) */
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{
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.virtual = (u32)S3C24XX_VA_ISA_BYTE,
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.pfn = __phys_to_pfn(S3C2410_CS2),
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.length = 0x10000,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)S3C24XX_VA_ISA_BYTE + 0x10000,
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.pfn = __phys_to_pfn(S3C2410_CS2 + (1<<24)),
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.length = SZ_4M,
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.type = MT_DEVICE,
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}
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};
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#define UCON (S3C2410_UCON_DEFAULT | \
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S3C2440_UCON_PCLK | \
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S3C2443_UCON_RXERR_IRQEN)
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#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
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#define UFCON (S3C2410_UFCON_RXTRIG8 | \
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S3C2410_UFCON_FIFOMODE | \
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S3C2440_UFCON_TXTRIG16)
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static struct s3c2410_uartcfg smdk2416_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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},
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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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},
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/* IR port */
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON | 0x50,
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.ufcon = UFCON,
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},
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[3] = {
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.hwport = 3,
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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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}
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};
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static void smdk2416_hsudc_gpio_init(void)
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{
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s3c_gpio_setpull(S3C2410_GPH(14), S3C_GPIO_PULL_UP);
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s3c_gpio_setpull(S3C2410_GPF(2), S3C_GPIO_PULL_NONE);
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s3c_gpio_cfgpin(S3C2410_GPH(14), S3C_GPIO_SFN(1));
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s3c2410_modify_misccr(S3C2416_MISCCR_SEL_SUSPND, 0);
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}
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static void smdk2416_hsudc_gpio_uninit(void)
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{
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s3c2410_modify_misccr(S3C2416_MISCCR_SEL_SUSPND, 1);
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s3c_gpio_setpull(S3C2410_GPH(14), S3C_GPIO_PULL_NONE);
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s3c_gpio_cfgpin(S3C2410_GPH(14), S3C_GPIO_SFN(0));
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}
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static struct s3c24xx_hsudc_platdata smdk2416_hsudc_platdata = {
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.epnum = 9,
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.gpio_init = smdk2416_hsudc_gpio_init,
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.gpio_uninit = smdk2416_hsudc_gpio_uninit,
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};
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static struct s3c_fb_pd_win smdk2416_fb_win[] = {
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[0] = {
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.default_bpp = 16,
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.max_bpp = 32,
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.xres = 800,
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.yres = 480,
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},
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};
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static struct fb_videomode smdk2416_lcd_timing = {
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.pixclock = 41094,
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.left_margin = 8,
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.right_margin = 13,
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.upper_margin = 7,
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.lower_margin = 5,
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.hsync_len = 3,
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.vsync_len = 1,
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.xres = 800,
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.yres = 480,
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};
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static void s3c2416_fb_gpio_setup_24bpp(void)
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{
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unsigned int gpio;
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for (gpio = S3C2410_GPC(1); gpio <= S3C2410_GPC(4); gpio++) {
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s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
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s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
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}
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for (gpio = S3C2410_GPC(8); gpio <= S3C2410_GPC(15); gpio++) {
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s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
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s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
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}
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for (gpio = S3C2410_GPD(0); gpio <= S3C2410_GPD(15); gpio++) {
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s3c_gpio_cfgpin(gpio, S3C_GPIO_SFN(2));
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s3c_gpio_setpull(gpio, S3C_GPIO_PULL_NONE);
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}
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}
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static struct s3c_fb_platdata smdk2416_fb_platdata = {
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.win[0] = &smdk2416_fb_win[0],
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.vtiming = &smdk2416_lcd_timing,
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.setup_gpio = s3c2416_fb_gpio_setup_24bpp,
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.vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
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.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
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};
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static struct s3c_sdhci_platdata smdk2416_hsmmc0_pdata __initdata = {
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.max_width = 4,
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.cd_type = S3C_SDHCI_CD_GPIO,
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.ext_cd_gpio = S3C2410_GPF(1),
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.ext_cd_gpio_invert = 1,
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};
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static struct s3c_sdhci_platdata smdk2416_hsmmc1_pdata __initdata = {
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.max_width = 4,
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.cd_type = S3C_SDHCI_CD_NONE,
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};
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static struct platform_device *smdk2416_devices[] __initdata = {
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&s3c_device_fb,
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&s3c_device_wdt,
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&s3c_device_ohci,
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&s3c_device_i2c0,
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&s3c_device_hsmmc0,
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&s3c_device_hsmmc1,
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&s3c_device_usb_hsudc,
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&s3c2443_device_dma,
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};
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static void __init smdk2416_init_time(void)
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{
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s3c2416_init_clocks(12000000);
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s3c24xx_timer_init();
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}
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static void __init smdk2416_map_io(void)
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{
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s3c24xx_init_io(smdk2416_iodesc, ARRAY_SIZE(smdk2416_iodesc));
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s3c24xx_init_uarts(smdk2416_uartcfgs, ARRAY_SIZE(smdk2416_uartcfgs));
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s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
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}
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static void __init smdk2416_machine_init(void)
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{
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s3c_i2c0_set_platdata(NULL);
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s3c_fb_set_platdata(&smdk2416_fb_platdata);
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s3c_sdhci0_set_platdata(&smdk2416_hsmmc0_pdata);
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s3c_sdhci1_set_platdata(&smdk2416_hsmmc1_pdata);
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s3c24xx_hsudc_set_platdata(&smdk2416_hsudc_platdata);
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gpio_request(S3C2410_GPB(4), "USBHost Power");
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gpio_direction_output(S3C2410_GPB(4), 1);
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gpio_request(S3C2410_GPB(3), "Display Power");
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gpio_direction_output(S3C2410_GPB(3), 1);
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gpio_request(S3C2410_GPB(1), "Display Reset");
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gpio_direction_output(S3C2410_GPB(1), 1);
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platform_add_devices(smdk2416_devices, ARRAY_SIZE(smdk2416_devices));
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smdk_machine_init();
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}
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MACHINE_START(SMDK2416, "SMDK2416")
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/* Maintainer: Yauhen Kharuzhy <jekhor@gmail.com> */
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.atag_offset = 0x100,
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.nr_irqs = NR_IRQS_S3C2416,
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.init_irq = s3c2416_init_irq,
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.map_io = smdk2416_map_io,
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.init_machine = smdk2416_machine_init,
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.init_time = smdk2416_init_time,
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MACHINE_END
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