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a1342f6a9f
PWM timer initialization has two independent implementations - one for S3C24xx and one for S3C64xx. The naming however was always the same and before also the declaration was shared. This is confusing, error prone and might cause issues when trying to build multiplatform kernel. Suggested-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200820204203.22328-1-krzk@kernel.org
156 lines
3.7 KiB
C
156 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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//
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// Copyright (c) 2007 TinCanTools
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// David Anders <danders@amltd.com>
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//
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// @History:
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// derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
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// Ben Dooks <ben@simtec.co.uk>
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#include <linux/gpio/machine.h>
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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/device.h>
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#include <linux/platform_device.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/io.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 <asm/mach/flash.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <linux/platform_data/i2c-s3c2410.h>
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#include "devs.h"
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#include "cpu.h"
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/map.h>
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#include <linux/mtd/physmap.h>
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#include "s3c24xx.h"
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static struct resource tct_hammer_nor_resource =
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DEFINE_RES_MEM(0x00000000, SZ_16M);
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static struct mtd_partition tct_hammer_mtd_partitions[] = {
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{
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.name = "System",
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.size = 0x240000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE, /* force read-only */
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}, {
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.name = "JFFS2",
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.size = MTDPART_SIZ_FULL,
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.offset = MTDPART_OFS_APPEND,
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}
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};
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static struct physmap_flash_data tct_hammer_flash_data = {
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.width = 2,
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.parts = tct_hammer_mtd_partitions,
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.nr_parts = ARRAY_SIZE(tct_hammer_mtd_partitions),
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};
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static struct platform_device tct_hammer_device_nor = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &tct_hammer_flash_data,
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},
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.num_resources = 1,
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.resource = &tct_hammer_nor_resource,
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};
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static struct map_desc tct_hammer_iodesc[] __initdata = {
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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 | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg tct_hammer_uartcfgs[] = {
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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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[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,
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.ufcon = UFCON,
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}
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};
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static struct gpiod_lookup_table tct_hammer_mmc_gpio_table = {
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.dev_id = "s3c2410-sdi",
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.table = {
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/* bus pins */
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GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
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{ },
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},
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};
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static struct platform_device *tct_hammer_devices[] __initdata = {
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&s3c_device_adc,
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&s3c_device_wdt,
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&s3c_device_i2c0,
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&s3c_device_ohci,
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&s3c_device_rtc,
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&s3c_device_usbgadget,
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&s3c_device_sdi,
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&tct_hammer_device_nor,
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};
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static void __init tct_hammer_map_io(void)
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{
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s3c24xx_init_io(tct_hammer_iodesc, ARRAY_SIZE(tct_hammer_iodesc));
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s3c24xx_init_uarts(tct_hammer_uartcfgs, ARRAY_SIZE(tct_hammer_uartcfgs));
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s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
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}
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static void __init tct_hammer_init_time(void)
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{
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s3c2410_init_clocks(12000000);
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s3c24xx_timer_init();
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}
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static void __init tct_hammer_init(void)
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{
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s3c_i2c0_set_platdata(NULL);
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gpiod_add_lookup_table(&tct_hammer_mmc_gpio_table);
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platform_add_devices(tct_hammer_devices, ARRAY_SIZE(tct_hammer_devices));
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}
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MACHINE_START(TCT_HAMMER, "TCT_HAMMER")
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.atag_offset = 0x100,
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.map_io = tct_hammer_map_io,
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.init_irq = s3c2410_init_irq,
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.init_machine = tct_hammer_init,
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.init_time = tct_hammer_init_time,
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MACHINE_END
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