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linux-next/arch/arm/mach-s3c64xx/mach-mini6410.c
Linus Torvalds 93abdb7785 ARM: SoC non-critical fixes for 3.14 
As usual, we have a batch of fixes that weren't considered significant
 enough to warrant going into the later -rcs for previous release, so
 they are queued up on this branch.
 
 A handful of these are for various DT fixups for Samsung platforms,
 and a handful of other minor things.
 
 There are also a couple of stable-marked patches for mvebu -- they came in
 quite late and we decided to keep them deferred until the first -stable
 release to get more coverage instead of squeezing them into 3.13.
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Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC non-critical fixes from Olof Johansson:
 "As usual, we have a batch of fixes that weren't considered significant
  enough to warrant going into the later -rcs for previous release, so
  they are queued up on this branch.

  A handful of these are for various DT fixups for Samsung platforms,
  and a handful of other minor things.

  There are also a couple of stable-marked patches for mvebu -- they
  came in quite late and we decided to keep them deferred until the
  first -stable release to get more coverage instead of squeezing them
  into 3.13"

* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
  ARM: at91: smc: bug fix in sam9_smc_cs_read()
  i2c: mv64xxx: Document the newly introduced Armada XP A0 compatible
  i2c: mv64xxx: Fix bus hang on A0 version of the Armada XP SoCs
  ARM: mvebu: Add quirk for i2c for the OpenBlocks AX3-4 board
  ARM: mvebu: Add support to get the ID and the revision of a SoC
  ARM: dts: msm: Fix gpio interrupt and reg length
  irqchip: sirf: set IRQ_LEVEL status_flags
  ARM: OMAP2+: gpmc: Move legacy GPMC width setting
  ARM: OMAP2+: gpmc: Introduce gpmc_set_legacy()
  ARM: OMAP2+: gpmc: Move initialization outside the gpmc_t condition
  ARM: OMAP2+: board-generic: update SoC compatibility strings
  Documentation: dt: OMAP: explicitly state SoC compatible strings
  ARM: OMAP2+: enable AM33xx SOC EVM audio
  ARM: OMAP2+: Select USB PHY for AM335x SoC
  ARM: bcm2835: Fix grammar in help message
  ARM: msm: trout: fix uninit var warning
  ARM: dts: Use MSHC controller for eMMC memory for exynos4412-trats2
  ARM: dts: Fix definition of MSHC device tree nodes for exynos4x12
  ARM: dts: add clock provider for mshc node for Exynos4412 SOC
  clk: samsung: exynos4: Fix definition of div_mmc_pre4 divider
  ...
2014-01-23 18:36:01 -08:00

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/* linux/arch/arm/mach-s3c64xx/mach-mini6410.c
*
* 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/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#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/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 <plat/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/regs-serial.h>
#include <plat/sdhci.h>
#include <linux/platform_data/touchscreen-s3c2410.h>
#include <video/platform_lcd.h>
#include <video/samsung_fimd.h>
#include <plat/samsung-time.h>
#include "common.h"
#include "regs-modem.h"
#include "regs-srom.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,
};
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,
&s3c_device_ts,
};
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);
s3c24xx_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,
.init_irq = s3c6410_init_irq,
.map_io = mini6410_map_io,
.init_machine = mini6410_machine_init,
.init_late = s3c64xx_init_late,
.init_time = samsung_timer_init,
.restart = s3c64xx_restart,
MACHINE_END
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