[PATCH] ARM: EXYNOS4: Add ARMLEX4210 Board support file
Kyungmin Park
kmpark at infradead.org
Thu Mar 3 04:06:46 EST 2011
On Thu, Mar 3, 2011 at 4:27 PM, ALIM AKHTAR <alim.akhtar at samsung.com> wrote:
> This patch is based on 'for-next' branch of kgene tree.
>
> This patch adds Samsung ARMLEX4210 board support file
> which is based on Exynos4210.
>
> Signed-off-by: Alim Akhtar <alim.akhtar at samsung.com>
> ---
> arch/arm/mach-exynos4/Kconfig | 13 ++
> arch/arm/mach-exynos4/Makefile | 1 +
> arch/arm/mach-exynos4/mach-armlex4210.c | 213 +++++++++++++++++++++++++++++++
> 3 files changed, 227 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/mach-exynos4/mach-armlex4210.c
>
> diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
> index ad03840..a12bddf 100644
> --- a/arch/arm/mach-exynos4/Kconfig
> +++ b/arch/arm/mach-exynos4/Kconfig
> @@ -109,6 +109,19 @@ config MACH_SMDKV310
> help
> Machine support for Samsung SMDKV310
>
> +config MACH_ARMLEX4210
> + bool "ARMLEX4210"
> + select CPU_EXYNOS4210
> + select S3C_DEV_RTC
> + select S3C_DEV_WDT
> + select S3C_DEV_HSMMC
> + select S3C_DEV_HSMMC2
> + select S3C_DEV_HSMMC3
> + select EXYNOS4_DEV_SYSMMU
> + select EXYNOS4_SETUP_SDHCI
> + help
> + Machine support for Samsung ARMLEX4210 based on EXYNOS4210
> +
> config MACH_UNIVERSAL_C210
> bool "Mobile UNIVERSAL_C210 Board"
> select CPU_EXYNOS4210
> diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile
> index 0558235..2860af8 100644
> --- a/arch/arm/mach-exynos4/Makefile
> +++ b/arch/arm/mach-exynos4/Makefile
> @@ -24,6 +24,7 @@ obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
>
> obj-$(CONFIG_MACH_SMDKC210) += mach-smdkc210.o
> obj-$(CONFIG_MACH_SMDKV310) += mach-smdkv310.o
> +obj-$(CONFIG_MACH_ARMLEX4210) += mach-armlex4210.o
> obj-$(CONFIG_MACH_UNIVERSAL_C210) += mach-universal_c210.o
>
> # device support
> diff --git a/arch/arm/mach-exynos4/mach-armlex4210.c b/arch/arm/mach-exynos4/mach-armlex4210.c
> new file mode 100644
> index 0000000..856ab6e
> --- /dev/null
> +++ b/arch/arm/mach-exynos4/mach-armlex4210.c
> @@ -0,0 +1,213 @@
> +/* 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,
> + .max_width = 4,
maybe you missed the clk_type. It's required for exynos4 series.
clk_type = S3C_SDHCI_CLK_DIV_EXTERNAL,
> +};
> +
> +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,
> +};
> +
> +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 at samsung.com> */
> + .boot_params = S5P_PA_SDRAM + 0x100,
> + .init_irq = exynos4_init_irq,
> + .map_io = armlex4210_map_io,
> + .init_machine = armlex4210_machine_init,
> + .timer = &exynos4_timer,
> +MACHINE_END
> --
> 1.7.0.4
>
More information about the linux-arm-kernel
mailing list