ARM: s3c: move into a common directory

s3c24xx and s3c64xx have a lot in common, but are split across three
separate directories, which makes the interaction of the header files
more complicated than necessary.

Move all three directories into a new mach-s3c, with a minimal
set of changes to each file.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[krzk: Rebase, add s3c24xx and s3c64xx suffix to several files, add SPDX
       headers to new files, remove plat-samsung from MAINTAINERS]
Co-developed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
https://lore.kernel.org/r/20200806182059.2431-39-krzk@kernel.org

1 files changed, 228 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c/common-smdk-s3c24xx.c b/arch/arm/mach-s3c/common-smdk-s3c24xx.c
new file mode 100644
index 000000000000..e3281dc3af13
--- /dev/null
+++ b/arch/arm/mach-s3c/common-smdk-s3c24xx.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2006 Simtec Electronics
+//	Ben Dooks <ben@simtec.co.uk>
+//
+// Common code for SMDK2410 and SMDK2440 boards
+//
+// http://www.fluff.org/ben/smdk2440/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/rawnand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+#include <linux/io.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
+#include <linux/platform_data/leds-s3c24xx.h>
+#include <linux/platform_data/mtd-nand-s3c2410.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/devs.h>
+#include <plat/pm.h>
+
+#include "common-smdk-s3c24xx.h"
+
+/* LED devices */
+
+static struct gpiod_lookup_table smdk_led4_gpio_table = {
+	.dev_id = "s3c24xx_led.0",
+	.table = {
+		GPIO_LOOKUP("GPF", 4, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
+		{ },
+	},
+};
+
+static struct gpiod_lookup_table smdk_led5_gpio_table = {
+	.dev_id = "s3c24xx_led.1",
+	.table = {
+		GPIO_LOOKUP("GPF", 5, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
+		{ },
+	},
+};
+
+static struct gpiod_lookup_table smdk_led6_gpio_table = {
+	.dev_id = "s3c24xx_led.2",
+	.table = {
+		GPIO_LOOKUP("GPF", 6, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
+		{ },
+	},
+};
+
+static struct gpiod_lookup_table smdk_led7_gpio_table = {
+	.dev_id = "s3c24xx_led.3",
+	.table = {
+		GPIO_LOOKUP("GPF", 7, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
+		{ },
+	},
+};
+
+static struct s3c24xx_led_platdata smdk_pdata_led4 = {
+	.name		= "led4",
+	.def_trigger	= "timer",
+};
+
+static struct s3c24xx_led_platdata smdk_pdata_led5 = {
+	.name		= "led5",
+	.def_trigger	= "nand-disk",
+};
+
+static struct s3c24xx_led_platdata smdk_pdata_led6 = {
+	.name		= "led6",
+};
+
+static struct s3c24xx_led_platdata smdk_pdata_led7 = {
+	.name		= "led7",
+};
+
+static struct platform_device smdk_led4 = {
+	.name		= "s3c24xx_led",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &smdk_pdata_led4,
+	},
+};
+
+static struct platform_device smdk_led5 = {
+	.name		= "s3c24xx_led",
+	.id		= 1,
+	.dev		= {
+		.platform_data = &smdk_pdata_led5,
+	},
+};
+
+static struct platform_device smdk_led6 = {
+	.name		= "s3c24xx_led",
+	.id		= 2,
+	.dev		= {
+		.platform_data = &smdk_pdata_led6,
+	},
+};
+
+static struct platform_device smdk_led7 = {
+	.name		= "s3c24xx_led",
+	.id		= 3,
+	.dev		= {
+		.platform_data = &smdk_pdata_led7,
+	},
+};
+
+/* NAND parititon from 2.4.18-swl5 */
+
+static struct mtd_partition smdk_default_nand_part[] = {
+	[0] = {
+		.name	= "Boot Agent",
+		.size	= SZ_16K,
+		.offset	= 0,
+	},
+	[1] = {
+		.name	= "S3C2410 flash partition 1",
+		.offset = 0,
+		.size	= SZ_2M,
+	},
+	[2] = {
+		.name	= "S3C2410 flash partition 2",
+		.offset = SZ_4M,
+		.size	= SZ_4M,
+	},
+	[3] = {
+		.name	= "S3C2410 flash partition 3",
+		.offset	= SZ_8M,
+		.size	= SZ_2M,
+	},
+	[4] = {
+		.name	= "S3C2410 flash partition 4",
+		.offset = SZ_1M * 10,
+		.size	= SZ_4M,
+	},
+	[5] = {
+		.name	= "S3C2410 flash partition 5",
+		.offset	= SZ_1M * 14,
+		.size	= SZ_1M * 10,
+	},
+	[6] = {
+		.name	= "S3C2410 flash partition 6",
+		.offset	= SZ_1M * 24,
+		.size	= SZ_1M * 24,
+	},
+	[7] = {
+		.name	= "S3C2410 flash partition 7",
+		.offset = SZ_1M * 48,
+		.size	= MTDPART_SIZ_FULL,
+	}
+};
+
+static struct s3c2410_nand_set smdk_nand_sets[] = {
+	[0] = {
+		.name		= "NAND",
+		.nr_chips	= 1,
+		.nr_partitions	= ARRAY_SIZE(smdk_default_nand_part),
+		.partitions	= smdk_default_nand_part,
+	},
+};
+
+/* choose a set of timings which should suit most 512Mbit
+ * chips and beyond.
+*/
+
+static struct s3c2410_platform_nand smdk_nand_info = {
+	.tacls		= 20,
+	.twrph0		= 60,
+	.twrph1		= 20,
+	.nr_sets	= ARRAY_SIZE(smdk_nand_sets),
+	.sets		= smdk_nand_sets,
+	.ecc_mode       = NAND_ECC_SOFT,
+};
+
+/* devices we initialise */
+
+static struct platform_device __initdata *smdk_devs[] = {
+	&s3c_device_nand,
+	&smdk_led4,
+	&smdk_led5,
+	&smdk_led6,
+	&smdk_led7,
+};
+
+void __init smdk_machine_init(void)
+{
+	if (machine_is_smdk2443())
+		smdk_nand_info.twrph0 = 50;
+
+	s3c_nand_set_platdata(&smdk_nand_info);
+
+	/* Disable pull-up on the LED lines */
+	s3c_gpio_setpull(S3C2410_GPF(4), S3C_GPIO_PULL_NONE);
+	s3c_gpio_setpull(S3C2410_GPF(5), S3C_GPIO_PULL_NONE);
+	s3c_gpio_setpull(S3C2410_GPF(6), S3C_GPIO_PULL_NONE);
+	s3c_gpio_setpull(S3C2410_GPF(7), S3C_GPIO_PULL_NONE);
+
+	/* Add lookups for the lines */
+	gpiod_add_lookup_table(&smdk_led4_gpio_table);
+	gpiod_add_lookup_table(&smdk_led5_gpio_table);
+	gpiod_add_lookup_table(&smdk_led6_gpio_table);
+	gpiod_add_lookup_table(&smdk_led7_gpio_table);
+
+	platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
+
+	s3c_pm_init();
+}