From 71b9114d2c13a648fbe6523dd859e611c316ad90 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 2 Sep 2019 17:47:55 +0200
Subject: 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
---
 arch/arm/mach-s3c/mach-mini6410.c | 365 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 365 insertions(+)
 create mode 100644 arch/arm/mach-s3c/mach-mini6410.c

(limited to 'arch/arm/mach-s3c/mach-mini6410.c')

diff --git a/arch/arm/mach-s3c/mach-mini6410.c b/arch/arm/mach-s3c/mach-mini6410.c
new file mode 100644
index 000000000000..9bd6581619b9
--- /dev/null
+++ b/arch/arm/mach-s3c/mach-mini6410.c
@@ -0,0 +1,365 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright 2010 Darius Augulis <augulis.darius@gmail.com>
+// Copyright 2008 Openmoko, Inc.
+// Copyright 2008 Simtec Electronics
+//	Ben Dooks <ben@simtec.co.uk>
+//	http://armlinux.simtec.co.uk/
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/dm9000.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/serial_core.h>
+#include <linux/serial_s3c.h>
+#include <linux/types.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <mach/map.h>
+#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
+
+#include <linux/soc/samsung/s3c-adc.h>
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/fb.h>
+#include <linux/platform_data/mtd-nand-s3c2410.h>
+#include <linux/platform_data/mmc-sdhci-s3c.h>
+#include <plat/sdhci.h>
+#include <linux/platform_data/touchscreen-s3c2410.h>
+#include <mach/irqs.h>
+
+#include <video/platform_lcd.h>
+#include <video/samsung_fimd.h>
+
+#include "s3c64xx.h"
+#include "regs-modem-s3c64xx.h"
+#include "regs-srom-s3c64xx.h"
+
+#define UCON S3C2410_UCON_DEFAULT
+#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
+#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
+
+static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport	= 0,
+		.flags	= 0,
+		.ucon	= UCON,
+		.ulcon	= ULCON,
+		.ufcon	= UFCON,
+	},
+	[1] = {
+		.hwport	= 1,
+		.flags	= 0,
+		.ucon	= UCON,
+		.ulcon	= ULCON,
+		.ufcon	= UFCON,
+	},
+	[2] = {
+		.hwport	= 2,
+		.flags	= 0,
+		.ucon	= UCON,
+		.ulcon	= ULCON,
+		.ufcon	= UFCON,
+	},
+	[3] = {
+		.hwport	= 3,
+		.flags	= 0,
+		.ucon	= UCON,
+		.ulcon	= ULCON,
+		.ufcon	= UFCON,
+	},
+};
+
+/* DM9000AEP 10/100 ethernet controller */
+
+static struct resource mini6410_dm9k_resource[] = {
+	[0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
+	[1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
+	[2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
+					| IORESOURCE_IRQ_HIGHLEVEL),
+};
+
+static struct dm9000_plat_data mini6410_dm9k_pdata = {
+	.flags		= (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
+};
+
+static struct platform_device mini6410_device_eth = {
+	.name		= "dm9000",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(mini6410_dm9k_resource),
+	.resource	= mini6410_dm9k_resource,
+	.dev		= {
+		.platform_data	= &mini6410_dm9k_pdata,
+	},
+};
+
+static struct mtd_partition mini6410_nand_part[] = {
+	[0] = {
+		.name	= "uboot",
+		.size	= SZ_1M,
+		.offset	= 0,
+	},
+	[1] = {
+		.name	= "kernel",
+		.size	= SZ_2M,
+		.offset	= SZ_1M,
+	},
+	[2] = {
+		.name	= "rootfs",
+		.size	= MTDPART_SIZ_FULL,
+		.offset	= SZ_1M + SZ_2M,
+	},
+};
+
+static struct s3c2410_nand_set mini6410_nand_sets[] = {
+	[0] = {
+		.name		= "nand",
+		.nr_chips	= 1,
+		.nr_partitions	= ARRAY_SIZE(mini6410_nand_part),
+		.partitions	= mini6410_nand_part,
+	},
+};
+
+static struct s3c2410_platform_nand mini6410_nand_info = {
+	.tacls		= 25,
+	.twrph0		= 55,
+	.twrph1		= 40,
+	.nr_sets	= ARRAY_SIZE(mini6410_nand_sets),
+	.sets		= mini6410_nand_sets,
+	.ecc_mode       = NAND_ECC_SOFT,
+};
+
+static struct s3c_fb_pd_win mini6410_lcd_type0_fb_win = {
+	.max_bpp	= 32,
+	.default_bpp	= 16,
+	.xres		= 480,
+	.yres		= 272,
+};
+
+static struct fb_videomode mini6410_lcd_type0_timing = {
+	/* 4.3" 480x272 */
+	.left_margin	= 3,
+	.right_margin	= 2,
+	.upper_margin	= 1,
+	.lower_margin	= 1,
+	.hsync_len	= 40,
+	.vsync_len	= 1,
+	.xres		= 480,
+	.yres		= 272,
+};
+
+static struct s3c_fb_pd_win mini6410_lcd_type1_fb_win = {
+	.max_bpp	= 32,
+	.default_bpp	= 16,
+	.xres		= 800,
+	.yres		= 480,
+};
+
+static struct fb_videomode mini6410_lcd_type1_timing = {
+	/* 7.0" 800x480 */
+	.left_margin	= 8,
+	.right_margin	= 13,
+	.upper_margin	= 7,
+	.lower_margin	= 5,
+	.hsync_len	= 3,
+	.vsync_len	= 1,
+	.xres		= 800,
+	.yres		= 480,
+};
+
+static struct s3c_fb_platdata mini6410_lcd_pdata[] __initdata = {
+	{
+		.setup_gpio	= s3c64xx_fb_gpio_setup_24bpp,
+		.vtiming	= &mini6410_lcd_type0_timing,
+		.win[0]		= &mini6410_lcd_type0_fb_win,
+		.vidcon0	= VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+		.vidcon1	= VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+	}, {
+		.setup_gpio	= s3c64xx_fb_gpio_setup_24bpp,
+		.vtiming	= &mini6410_lcd_type1_timing,
+		.win[0]		= &mini6410_lcd_type1_fb_win,
+		.vidcon0	= VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
+		.vidcon1	= VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
+	},
+	{ },
+};
+
+static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
+				   unsigned int power)
+{
+	if (power)
+		gpio_direction_output(S3C64XX_GPE(0), 1);
+	else
+		gpio_direction_output(S3C64XX_GPE(0), 0);
+}
+
+static struct plat_lcd_data mini6410_lcd_power_data = {
+	.set_power	= mini6410_lcd_power_set,
+};
+
+static struct platform_device mini6410_lcd_powerdev = {
+	.name			= "platform-lcd",
+	.dev.parent		= &s3c_device_fb.dev,
+	.dev.platform_data	= &mini6410_lcd_power_data,
+};
+
+static struct s3c_sdhci_platdata mini6410_hsmmc1_pdata = {
+	.max_width		= 4,
+	.cd_type		= S3C_SDHCI_CD_GPIO,
+	.ext_cd_gpio		= S3C64XX_GPN(10),
+	.ext_cd_gpio_invert	= true,
+};
+
+static struct platform_device *mini6410_devices[] __initdata = {
+	&mini6410_device_eth,
+	&s3c_device_hsmmc0,
+	&s3c_device_hsmmc1,
+	&s3c_device_ohci,
+	&s3c_device_nand,
+	&s3c_device_fb,
+	&mini6410_lcd_powerdev,
+	&s3c_device_adc,
+};
+
+static void __init mini6410_map_io(void)
+{
+	u32 tmp;
+
+	s3c64xx_init_io(NULL, 0);
+	s3c64xx_set_xtal_freq(12000000);
+	s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
+	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
+
+	/* set the LCD type */
+	tmp = __raw_readl(S3C64XX_SPCON);
+	tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
+	tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
+	__raw_writel(tmp, S3C64XX_SPCON);
+
+	/* remove the LCD bypass */
+	tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
+	tmp &= ~MIFPCON_LCD_BYPASS;
+	__raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
+}
+
+/*
+ * mini6410_features string
+ *
+ * 0-9 LCD configuration
+ *
+ */
+static char mini6410_features_str[12] __initdata = "0";
+
+static int __init mini6410_features_setup(char *str)
+{
+	if (str)
+		strlcpy(mini6410_features_str, str,
+			sizeof(mini6410_features_str));
+	return 1;
+}
+
+__setup("mini6410=", mini6410_features_setup);
+
+#define FEATURE_SCREEN (1 << 0)
+
+struct mini6410_features_t {
+	int done;
+	int lcd_index;
+};
+
+static void mini6410_parse_features(
+		struct mini6410_features_t *features,
+		const char *features_str)
+{
+	const char *fp = features_str;
+
+	features->done = 0;
+	features->lcd_index = 0;
+
+	while (*fp) {
+		char f = *fp++;
+
+		switch (f) {
+		case '0'...'9':	/* tft screen */
+			if (features->done & FEATURE_SCREEN) {
+				printk(KERN_INFO "MINI6410: '%c' ignored, "
+					"screen type already set\n", f);
+			} else {
+				int li = f - '0';
+				if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
+					printk(KERN_INFO "MINI6410: '%c' out "
+						"of range LCD mode\n", f);
+				else {
+					features->lcd_index = li;
+				}
+			}
+			features->done |= FEATURE_SCREEN;
+			break;
+		}
+	}
+}
+
+static void __init mini6410_machine_init(void)
+{
+	u32 cs1;
+	struct mini6410_features_t features = { 0 };
+
+	printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
+			mini6410_features_str);
+
+	/* Parse the feature string */
+	mini6410_parse_features(&features, mini6410_features_str);
+
+	printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
+		mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
+		mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
+
+	s3c_nand_set_platdata(&mini6410_nand_info);
+	s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
+	s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
+	s3c64xx_ts_set_platdata(NULL);
+
+	/* configure nCS1 width to 16 bits */
+
+	cs1 = __raw_readl(S3C64XX_SROM_BW) &
+		~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
+	cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
+		(1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
+		(1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
+			S3C64XX_SROM_BW__NCS1__SHIFT;
+	__raw_writel(cs1, S3C64XX_SROM_BW);
+
+	/* set timing for nCS1 suitable for ethernet chip */
+
+	__raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
+		(6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
+		(4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
+		(1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
+		(13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
+		(4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
+		(0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
+
+	gpio_request(S3C64XX_GPF(15), "LCD power");
+	gpio_request(S3C64XX_GPE(0), "LCD power");
+
+	platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
+}
+
+MACHINE_START(MINI6410, "MINI6410")
+	/* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
+	.atag_offset	= 0x100,
+	.nr_irqs	= S3C64XX_NR_IRQS,
+	.init_irq	= s3c6410_init_irq,
+	.map_io		= mini6410_map_io,
+	.init_machine	= mini6410_machine_init,
+	.init_time	= samsung_timer_init,
+MACHINE_END
-- 
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