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linux-next/arch/arm/mach-exynos4/mach-smdkc210.c
Jeongtae Park 1af3c67212 ARM: EXYNOS4: Fix smsc9215 irq polarity on SMDKC210 
This patch fixes smsc9215 irq ploarity configuration of SMDKC210.
We can change type of EINT(5) as HIGH, but it's better to change
IRQ output of smsc9215 as an active low because smsc's IRQ line
has been pull-up.

Signed-off-by: Jeongtae Park <jtp.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-03-28 16:17:54 +09:00

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/* linux/arch/arm/mach-exynos4/mach-smdkc210.c
*
* Copyright (c) 2010-2011 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/serial_core.h>
#include <linux/gpio.h>
#include <linux/mmc/host.h>
#include <linux/platform_device.h>
#include <linux/smsc911x.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <asm/mach/arch.h>
#include <asm/mach-types.h>
#include <plat/regs-serial.h>
#include <plat/regs-srom.h>
#include <plat/exynos4.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/sdhci.h>
#include <plat/iic.h>
#include <plat/pd.h>
#include <mach/map.h>
/* Following are default values for UCON, ULCON and UFCON UART registers */
#define SMDKC210_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
S3C2410_UCON_RXILEVEL | \
S3C2410_UCON_TXIRQMODE | \
S3C2410_UCON_RXIRQMODE | \
S3C2410_UCON_RXFIFO_TOI | \
S3C2443_UCON_RXERR_IRQEN)
#define SMDKC210_ULCON_DEFAULT S3C2410_LCON_CS8
#define SMDKC210_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
S5PV210_UFCON_TXTRIG4 | \
S5PV210_UFCON_RXTRIG4)
static struct s3c2410_uartcfg smdkc210_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = SMDKC210_UCON_DEFAULT,
.ulcon = SMDKC210_ULCON_DEFAULT,
.ufcon = SMDKC210_UFCON_DEFAULT,
},
[1] = {
.hwport = 1,
.flags = 0,
.ucon = SMDKC210_UCON_DEFAULT,
.ulcon = SMDKC210_ULCON_DEFAULT,
.ufcon = SMDKC210_UFCON_DEFAULT,
},
[2] = {
.hwport = 2,
.flags = 0,
.ucon = SMDKC210_UCON_DEFAULT,
.ulcon = SMDKC210_ULCON_DEFAULT,
.ufcon = SMDKC210_UFCON_DEFAULT,
},
[3] = {
.hwport = 3,
.flags = 0,
.ucon = SMDKC210_UCON_DEFAULT,
.ulcon = SMDKC210_ULCON_DEFAULT,
.ufcon = SMDKC210_UFCON_DEFAULT,
},
};
static struct s3c_sdhci_platdata smdkc210_hsmmc0_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_GPIO,
.ext_cd_gpio = EXYNOS4_GPK0(2),
.ext_cd_gpio_invert = 1,
.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 smdkc210_hsmmc1_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_GPIO,
.ext_cd_gpio = EXYNOS4_GPK0(2),
.ext_cd_gpio_invert = 1,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
};
static struct s3c_sdhci_platdata smdkc210_hsmmc2_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_GPIO,
.ext_cd_gpio = EXYNOS4_GPK2(2),
.ext_cd_gpio_invert = 1,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
#ifdef CONFIG_EXYNOS4_SDHCI_CH2_8BIT
.max_width = 8,
.host_caps = MMC_CAP_8_BIT_DATA,
#endif
};
static struct s3c_sdhci_platdata smdkc210_hsmmc3_pdata __initdata = {
.cd_type = S3C_SDHCI_CD_GPIO,
.ext_cd_gpio = EXYNOS4_GPK2(2),
.ext_cd_gpio_invert = 1,
.clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
};
static struct resource smdkc210_smsc911x_resources[] = {
[0] = {
.start = EXYNOS4_PA_SROM_BANK(1),
.end = EXYNOS4_PA_SROM_BANK(1) + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_EINT(5),
.end = IRQ_EINT(5),
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
},
};
static struct smsc911x_platform_config smsc9215_config = {
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.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 smdkc210_smsc911x = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(smdkc210_smsc911x_resources),
.resource = smdkc210_smsc911x_resources,
.dev = {
.platform_data = &smsc9215_config,
},
};
static struct i2c_board_info i2c_devs1[] __initdata = {
{I2C_BOARD_INFO("wm8994", 0x1a),},
};
static struct platform_device *smdkc210_devices[] __initdata = {
&s3c_device_hsmmc0,
&s3c_device_hsmmc1,
&s3c_device_hsmmc2,
&s3c_device_hsmmc3,
&s3c_device_i2c1,
&s3c_device_rtc,
&s3c_device_wdt,
&exynos4_device_ac97,
&exynos4_device_i2s0,
&exynos4_device_pd[PD_MFC],
&exynos4_device_pd[PD_G3D],
&exynos4_device_pd[PD_LCD0],
&exynos4_device_pd[PD_LCD1],
&exynos4_device_pd[PD_CAM],
&exynos4_device_pd[PD_TV],
&exynos4_device_pd[PD_GPS],
&exynos4_device_sysmmu,
&samsung_asoc_dma,
&smdkc210_smsc911x,
};
static void __init smdkc210_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) |
(1 << S5P_SROM_BW__WAITENABLE__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 smdkc210_map_io(void)
{
s5p_init_io(NULL, 0, S5P_VA_CHIPID);
s3c24xx_init_clocks(24000000);
s3c24xx_init_uarts(smdkc210_uartcfgs, ARRAY_SIZE(smdkc210_uartcfgs));
}
static void __init smdkc210_machine_init(void)
{
s3c_i2c1_set_platdata(NULL);
i2c_register_board_info(1, i2c_devs1, ARRAY_SIZE(i2c_devs1));
smdkc210_smsc911x_init();
s3c_sdhci0_set_platdata(&smdkc210_hsmmc0_pdata);
s3c_sdhci1_set_platdata(&smdkc210_hsmmc1_pdata);
s3c_sdhci2_set_platdata(&smdkc210_hsmmc2_pdata);
s3c_sdhci3_set_platdata(&smdkc210_hsmmc3_pdata);
platform_add_devices(smdkc210_devices, ARRAY_SIZE(smdkc210_devices));
}
MACHINE_START(SMDKC210, "SMDKC210")
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
.boot_params = S5P_PA_SDRAM + 0x100,
.init_irq = exynos4_init_irq,
.map_io = smdkc210_map_io,
.init_machine = smdkc210_machine_init,
.timer = &exynos4_timer,
MACHINE_END
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