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Message-ID: <CA+E=qVchRQb3fX8QTn0otF6Hydqcgjuq6m0g9D0j12=efW4e9A@mail.gmail.com>
Date: Mon, 3 Sep 2012 21:00:54 +0300
From: Vasily Khoruzhick <anarsoul@...il.com>
To: Taehun Kim <kth3321@...il.com>
Cc: Ben Dooks <ben-linux@...ff.org>, linux-samsung-soc@...r.kernel.org,
Kukjin Kim <kgene.kim@...sung.com>,
Russell King <linux@....linux.org.uk>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2] ARM: S3C24XX: Add WIZnet W5300E01-ARM board support
On Mon, Sep 3, 2012 at 8:36 PM, Taehun Kim <kth3321@...il.com> wrote:
> This patch adds WIZnet W5300E01 board changed to the new gpio functions.
> Please review this patch and apply it if do not have any problems.
>
> Signed-off-by: Taehun Kim <kth3321@...il.com>
> ---
> arch/arm/mach-s3c24xx/Kconfig | 5 +
> arch/arm/mach-s3c24xx/Makefile | 1 +
> arch/arm/mach-s3c24xx/mach-w5300e01.c | 186
> +++++++++++++++++++++++++++++++++
> 3 files changed, 192 insertions(+)
> create mode 100644 arch/arm/mach-s3c24xx/mach-w5300e01.c
>
> diff --git a/arch/arm/mach-s3c24xx/Kconfig
> b/arch/arm/mach-s3c24xx/Kconfig
> index d56b0f7..94b60ca 100644
> --- a/arch/arm/mach-s3c24xx/Kconfig
> +++ b/arch/arm/mach-s3c24xx/Kconfig
> @@ -248,6 +248,11 @@ config MACH_VR1000
> help
> Say Y here if you are using the Thorcom VR1000 board.
>
> +config MACH_W5300E01
> + bool "WIZnet W5300E01-ARM Board"
> + help
> + Say Y here if you are using the Wiznet W5300E01-ARM board.
> +
> endif # CPU_S3C2410
>
> config S3C2412_PM_SLEEP
> diff --git a/arch/arm/mach-s3c24xx/Makefile
> b/arch/arm/mach-s3c24xx/Makefile
> index 0ab6ab1..fc1a89e 100644
> --- a/arch/arm/mach-s3c24xx/Makefile
> +++ b/arch/arm/mach-s3c24xx/Makefile
> @@ -61,6 +61,7 @@ obj-$(CONFIG_MACH_QT2410) += mach-qt2410.o
> obj-$(CONFIG_ARCH_SMDK2410) += mach-smdk2410.o
> obj-$(CONFIG_MACH_TCT_HAMMER) += mach-tct_hammer.o
> obj-$(CONFIG_MACH_VR1000) += mach-vr1000.o
> +obj-$(CONFIG_MACH_W5300E01) += mach-w5300e01.o
>
> obj-$(CONFIG_MACH_JIVE) += mach-jive.o
> obj-$(CONFIG_MACH_SMDK2413) += mach-smdk2413.o
> diff --git a/arch/arm/mach-s3c24xx/mach-w5300e01.c
> b/arch/arm/mach-s3c24xx/mach-w5300e01.c
> new file mode 100644
> index 0000000..7daf82e
> --- /dev/null
> +++ b/arch/arm/mach-s3c24xx/mach-w5300e01.c
> @@ -0,0 +1,186 @@
> +/* linux/arch/arm/mach-s3c24xx/mach-w5300e01.c
> + *
> + * Copyright (c) 2012 Taehun Kim <kth3321@...il.com>
> + *
> + * For product information, visit http://www.wiznet.co.kr/
> + *
> + * 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.
> + *
> + * @History:
> + * derived from linux/arch/arm/mach-s3c24xx/mach-bast.c, written by
> + * Ben Dooks <ben@...tec.co.uk>
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/types.h>
> +#include <linux/interrupt.h>
> +#include <linux/list.h>
> +#include <linux/timer.h>
> +#include <linux/init.h>
> +#include <linux/serial_core.h>
> +#include <linux/platform_device.h>
> +#include <linux/gpio.h>
> +#include <linux/io.h>
> +#include <linux/mtd/mtd.h>
> +#include <linux/mtd/nand.h>
> +#include <linux/mtd/map.h>
> +#include <linux/mtd/partitions.h>
> +
> +#include <asm/mach/arch.h>
> +#include <asm/mach/map.h>
> +#include <asm/mach/irq.h>
> +#include <asm/mach-types.h>
> +
> +#include <mach/regs-gpio.h>
> +#include <plat/gpio-cfg.h>
> +#include <plat/cpu.h>
> +#include <plat/devs.h>
> +#include <plat/regs-serial.h>
> +#include <plat/nand.h>
> +#include <plat/pm.h>
> +
> +static struct map_desc w5300e01_iodesc[] __initdata = {
> + /* Character LCD register map. */
> + { 0xf8000000, __phys_to_pfn(S3C2410_CS3), SZ_1M, MT_DEVICE }
> +};
> +
> +#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 w5300e01_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,
> + }
> +};
> +
> +static struct mtd_partition w5300e01_mtd_partitions[] = {
> + [0] = {
> + .name = "Bootloader",
> + .size = 0x20000,
> + .offset = 0,
> + .mask_flags = MTD_WRITEABLE,
> + },
> + [1] = {
> + .name = "Boot Param",
> + .size = 0x20000,
> + .offset = MTDPART_OFS_APPEND,
> + },
> + [2] = {
> + .name = "Kernel",
> + .size = 0x3C0000,
> + .offset = MTDPART_OFS_APPEND,
> + },
> + [3] = {
> + .name = "Ramdisk",
> + .size = 0x1000000,
> + .offset = MTDPART_OFS_APPEND,
> + },
> + [4] = {
> + .name = "JFFS2 FileSystem",
> + .size = MTDPART_SIZ_FULL,
> + .offset = MTDPART_OFS_APPEND,
> + },
> +};
> +
> +static struct resource w5300_resources[] = {
> + [0] = {
> + .start = S3C2410_CS2,
> + .end = S3C2410_CS2 + SZ_1M,
> + .flags = IORESOURCE_MEM,
> + },
> + [1] = {
> + .start = IRQ_EINT0,
> + .end = IRQ_EINT0,
> + .flags = IORESOURCE_IRQ,
> + },
> +};
> +
> +static struct platform_device w5300_device = {
> + .name = "w5300",
> + .num_resources = ARRAY_SIZE(w5300_resources),
> + .resource = w5300_resources,
> +};
> +
> +static struct s3c2410_nand_set w5300e01_nand_sets[] = {
> + [0] = {
> + .name = "W5300E01",
> + .nr_chips = 1,
> + .nr_partitions = ARRAY_SIZE(w5300e01_mtd_partitions),
> + .partitions = w5300e01_mtd_partitions,
> + },
> +};
> +
> +static struct s3c2410_platform_nand w5300e01_nand_info = {
> + .tacls = 20,
> + .twrph0 = 60,
> + .twrph1 = 30,
> + .nr_sets = ARRAY_SIZE(w5300e01_nand_sets),
> + .sets = w5300e01_nand_sets,
> +};
> +
> +static struct platform_device *w5300e01_devices[] __initdata = {
> + &s3c_device_nand,
> + &s3c_device_usbgadget,
> + &s3c_device_wdt,
> + &s3c_device_i2c0,
> + &s3c_device_iis,
> + &w5300_device,
> +};
> +
> +static void __init w5300e01_map_io(void)
> +{
> + s3c24xx_init_io(w5300e01_iodesc, ARRAY_SIZE(w5300e01_iodesc));
> + s3c24xx_init_clocks(0);
> + s3c24xx_init_uarts(w5300e01_uartcfgs, ARRAY_SIZE(w5300e01_uartcfgs));
> +}
> +
> +static void __init w5300e01_init(void)
> +{
> + s3c_nand_set_platdata(&w5300e01_nand_info);
> + platform_add_devices(w5300e01_devices, ARRAY_SIZE(w5300e01_devices));
> +
> + /* W5300 interrupt pin. */
> + s3c_gpio_cfgpin(S3C2410_GPF(0), S3C2410_GPIO_IRQ);
> +
> + s3c_gpio_cfgpin(S3C2410_GPF(4), S3C2410_GPIO_OUTPUT);
> + s3c_gpio_cfgpin(S3C2410_GPF(5), S3C2410_GPIO_OUTPUT);
> + s3c_gpio_cfgpin(S3C2410_GPF(6), S3C2410_GPIO_OUTPUT);
> + s3c_gpio_cfgpin(S3C2410_GPF(7), S3C2410_GPIO_OUTPUT);
> +
> + gpio_set_value(S3C2410_GPF(0), 1);
> + gpio_set_value(S3C2410_GPF(4), 1);
> + gpio_set_value(S3C2410_GPF(5), 1);
> + gpio_set_value(S3C2410_GPF(6), 1);
> + gpio_set_value(S3C2410_GPF(7), 1);
You need to call gpio_request() (or gpio_request_{one,array}) before
using pin. Please look at
Documentation/gpio.txt
> + s3c_pm_init();
> +}
> +
> +MACHINE_START(W5300E01, "WIZnet W5300E01-ARM")
> + .atag_offset = S3C2410_SDRAM_PA + 0x100,
> + .map_io = w5300e01_map_io,
> + .init_irq = s3c24xx_init_irq,
> + .init_machine = w5300e01_init,
> + .timer = &s3c24xx_timer,
> +MACHINE_END
> --
> 1.7.9.5
Regards
Vasily
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