/* linux/arch/arm/mach-exynos4/mach-armlex4210.c
*
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* 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/gpio.h>
#include <linux/io.h>
#include <linux/mmc/host.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/smsc911x.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/exynos4.h>
#include <plat/gpio-cfg.h>
#include <plat/regs-serial.h>
#include <plat/regs-srom.h>
#include <plat/sdhci.h>
#include <mach/map.h>
/* Following are default values for UCON, ULCON and UFCON UART registers */
#define ARMLEX4210_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
S3C2410_UCON_RXILEVEL | \
S3C2410_UCON_TXIRQMODE | \
S3C2410_UCON_RXIRQMODE | \
S3C2410_UCON_RXFIFO_TOI | \
S3C2443_UCON_RXERR_IRQEN)
#define ARMLEX4210_ULCON_DEFAULT S3C2410_LCON_CS8
#define ARMLEX4210_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
S5PV210_UFCON_TXTRIG4 | \
S5PV210_UFCON_RXTRIG4)
static struct s3c2410_uartcfg armlex4210_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = ARMLEX4210_UCON_DEFAULT,
.ulcon = ARMLEX4210_ULCON_DEFAULT,
.ufcon = ARMLEX4210_UFCON_DEFAULT,
},
[1] = {
.hwport = 1,
.flags = 0,
.ucon = ARMLEX4210_UCON_DEFAULT,
.ulcon = ARMLEX4210_ULCON_DEFAULT,
.ufcon = ARMLEX4210_UFCON_DEFAULT,
},
[2] = {
.hwport = 2,
.flags = 0,
.ucon = ARMLEX4210_UCON_DEFAULT,
.ulcon = ARMLEX4210_ULCON_DEFAULT,
.ufcon = ARMLEX4210_UFCON_DEFAULT,
},
[3] = {
.hwport = 3,
.flags = 0,
.ucon = ARMLEX4210_UCON_DEFAULT,
.ulcon = ARMLEX4210_ULCON_DEFAULT,
.ufcon = ARMLEX4210_UFCON_DEFAULT,
},
};
static struct s3c_sdhci_platdata armlex4210_hsmmc0_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_PERMANENT,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
#ifdef CONFIG_EXYNOS4_SDHCI_CH0_8BIT
.max_width = 8,
.host_caps = MMC_CAP_8_BIT_DATA,
#endif
};
static struct s3c_sdhci_platdata armlex4210_hsmmc2_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_GPIO,
.ext_cd_gpio = EXYNOS4_GPX2(5),
.ext_cd_gpio_invert = 1,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
.max_width = 4,
};
static struct s3c_sdhci_platdata armlex4210_hsmmc3_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_PERMANENT,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
.max_width = 4,
};
static void __init armlex4210_sdhci_init(void)
{
s3c_sdhci0_set_platdata(&armlex4210_hsmmc0_pdata);
s3c_sdhci2_set_platdata(&armlex4210_hsmmc2_pdata);
s3c_sdhci3_set_platdata(&armlex4210_hsmmc3_pdata);
}
static void __init armlex4210_wlan_init(void)
{
/* enable */
s3c_gpio_cfgpin(EXYNOS4_GPX2(0), S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(EXYNOS4_GPX2(0), S3C_GPIO_PULL_UP);
/* reset */
s3c_gpio_cfgpin(EXYNOS4_GPX1(6), S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(EXYNOS4_GPX1(6), S3C_GPIO_PULL_UP);
/* wakeup */
s3c_gpio_cfgpin(EXYNOS4_GPX1(5), S3C_GPIO_SFN(0xf));
s3c_gpio_setpull(EXYNOS4_GPX1(5), S3C_GPIO_PULL_UP);
}
static struct resource armlex4210_smsc911x_resources[] = {
[0] = {
.start = EXYNOS4_PA_SROM_BANK(3),
.end = EXYNOS4_PA_SROM_BANK(3) + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_EINT(27),
.end = IRQ_EINT(27),
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
},
};
static struct smsc911x_platform_config smsc9215_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
.flags = SMSC911X_USE_16BIT | SMSC911X_FORCE_INTERNAL_PHY,
.phy_interface = PHY_INTERFACE_MODE_MII,
.mac = {0x00, 0x80, 0x00, 0x23, 0x45, 0x67},
};
static struct platform_device armlex4210_smsc911x = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(armlex4210_smsc911x_resources),
.resource = armlex4210_smsc911x_resources,
.dev = {
.platform_data = &smsc9215_config,
},
};
static struct platform_device *armlex4210_devices[] __initdata = {
&s3c_device_hsmmc0,
&s3c_device_hsmmc2,
&s3c_device_hsmmc3,
&s3c_device_rtc,
&s3c_device_wdt,
&exynos4_device_sysmmu,
&samsung_asoc_dma,
&armlex4210_smsc911x,
&exynos4_device_ahci,
};
static void __init armlex4210_smsc911x_init(void)
{
u32 cs1;
/* configure nCS1 width to 16 bits */
cs1 = __raw_readl(S5P_SROM_BW) &
~(S5P_SROM_BW__CS_MASK << S5P_SROM_BW__NCS1__SHIFT);
cs1 |= ((1 << S5P_SROM_BW__DATAWIDTH__SHIFT) |
(0 << S5P_SROM_BW__WAITENABLE__SHIFT) |
(1 << S5P_SROM_BW__ADDRMODE__SHIFT) |
(1 << S5P_SROM_BW__BYTEENABLE__SHIFT)) <<
S5P_SROM_BW__NCS1__SHIFT;
__raw_writel(cs1, S5P_SROM_BW);
/* set timing for nCS1 suitable for ethernet chip */
__raw_writel((0x1 << S5P_SROM_BCX__PMC__SHIFT) |
(0x9 << S5P_SROM_BCX__TACP__SHIFT) |
(0xc << S5P_SROM_BCX__TCAH__SHIFT) |
(0x1 << S5P_SROM_BCX__TCOH__SHIFT) |
(0x6 << S5P_SROM_BCX__TACC__SHIFT) |
(0x1 << S5P_SROM_BCX__TCOS__SHIFT) |
(0x1 << S5P_SROM_BCX__TACS__SHIFT), S5P_SROM_BC1);
}
static void __init armlex4210_map_io(void)
{
s5p_init_io(NULL, 0, S5P_VA_CHIPID);
s3c24xx_init_clocks(24000000);
s3c24xx_init_uarts(armlex4210_uartcfgs,
ARRAY_SIZE(armlex4210_uartcfgs));
}
static void __init armlex4210_machine_init(void)
{
armlex4210_smsc911x_init();
armlex4210_sdhci_init();
armlex4210_wlan_init();
platform_add_devices(armlex4210_devices,
ARRAY_SIZE(armlex4210_devices));
}
MACHINE_START(ARMLEX4210, "ARMLEX4210")
/* Maintainer: Alim Akhtar <alim.akhtar@samsung.com> */
.atag_offset = 0x100,
.init_irq = exynos4_init_irq,
.map_io = armlex4210_map_io,
.init_machine = armlex4210_machine_init,
.timer = &exynos4_timer,
MACHINE_END
