mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-29 15:35:11 +02:00
dd98c76b9a
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20418 3c298f89-4303-0410-b956-a3cf2f4a3e73
197 lines
6.3 KiB
Diff
197 lines
6.3 KiB
Diff
Index: linux-2.6.30.10/drivers/gpio/Kconfig
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===================================================================
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--- linux-2.6.30.10.orig/drivers/gpio/Kconfig 2010-03-24 21:55:56.000000000 +0100
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+++ linux-2.6.30.10/drivers/gpio/Kconfig 2010-03-24 21:56:36.000000000 +0100
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@@ -176,4 +176,12 @@
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SPI driver for Microchip MCP23S08 I/O expander. This provides
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a GPIO interface supporting inputs and outputs.
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+comment "EBU GPIO expanders:"
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+
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+config GPIO_IFXMIPS_EBU
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+ boolean "IFXMIPS EBU attached I/O expander"
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+ depends on IFXMIPS
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+ help
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+ This driver allows you to drive latches attached to the SoCc External Bus Unit
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+
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endif
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Index: linux-2.6.30.10/drivers/gpio/Makefile
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===================================================================
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--- linux-2.6.30.10.orig/drivers/gpio/Makefile 2010-03-24 21:55:56.000000000 +0100
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+++ linux-2.6.30.10/drivers/gpio/Makefile 2010-03-24 21:56:36.000000000 +0100
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@@ -12,3 +12,4 @@
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obj-$(CONFIG_GPIO_TWL4030) += twl4030-gpio.o
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obj-$(CONFIG_GPIO_XILINX) += xilinx_gpio.o
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obj-$(CONFIG_GPIO_BT8XX) += bt8xxgpio.o
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+obj-$(CONFIG_GPIO_IFXMIPS_EBU) += ifxmips_ebu_gpio.o
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Index: linux-2.6.30.10/arch/mips/ifxmips/board.c
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===================================================================
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--- linux-2.6.30.10.orig/arch/mips/ifxmips/board.c 2010-03-25 10:43:06.000000000 +0100
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+++ linux-2.6.30.10/arch/mips/ifxmips/board.c 2010-03-25 12:40:54.000000000 +0100
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@@ -111,6 +111,11 @@
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.name = "ifxmips_wdt",
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};
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+static struct platform_device ifxmips_ebu = {
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+ .id = 0,
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+ .name = "ifxmips_ebu",
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+};
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+
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static struct resource ifxmips_mtd_resource = {
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.start = IFXMIPS_FLASH_START,
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.end = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1,
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@@ -145,10 +150,18 @@
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static struct gpio_led arv452_gpio_leds[] = {
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{ .name = "ifx:blue:power", .gpio = 3, .active_low = 1, },
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{ .name = "ifx:blue:adsl", .gpio = 4, .active_low = 1, },
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- { .name = "ifx:pink:internet", .gpio = 5, .active_low = 1, },
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+ { .name = "ifx:blue:internet", .gpio = 5, .active_low = 1, },
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{ .name = "ifx:red:power", .gpio = 6, .active_low = 1, },
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{ .name = "ifx:yello:wps", .gpio = 7, .active_low = 1, },
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{ .name = "ifx:red:wps", .gpio = 9, .active_low = 1, },
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+ { .name = "ifx:blue:voip", .gpio = 32, .active_low = 1, },
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+ { .name = "ifx:blue:fxs1", .gpio = 33, .active_low = 1, },
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+ { .name = "ifx:blue:fxs2", .gpio = 34, .active_low = 1, },
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+ { .name = "ifx:blue:fxo", .gpio = 35, .active_low = 1, },
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+ { .name = "ifx:blue:voice", .gpio = 36, .active_low = 1, },
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+ { .name = "ifx:blue:usb", .gpio = 37, .active_low = 1, },
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+ { .name = "ifx:blue:wlan", .gpio = 38, .active_low = 1, },
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+ { .name = "ifx:red:internet", .gpio = 41, .active_low = 1, },
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};
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static struct gpio_led_platform_data ifxmips_gpio_led_data;
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@@ -205,6 +218,7 @@
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struct platform_device *arv452_devs[] = {
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&ifxmips_gpio, &ifxmips_mii, &ifxmips_mtd,
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&ifxmips_gpio_dev, &ifxmips_wdt, &dwc_usb,
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+ &ifxmips_ebu,
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#ifdef CONFIG_LEDS_GPIO
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&ifxmips_gpio_leds,
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#endif
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Index: linux-2.6.30.10/drivers/gpio/ifxmips_ebu_gpio.c
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ linux-2.6.30.10/drivers/gpio/ifxmips_ebu_gpio.c 2010-03-25 12:47:07.000000000 +0100
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@@ -0,0 +1,121 @@
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+/*
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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+ *
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+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
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+ */
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+
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+#include <linux/init.h>
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+#include <linux/platform_device.h>
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+#include <linux/mutex.h>
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+#include <linux/gpio.h>
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+#include <ifxmips.h>
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+
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+#define IFXMIPS_EBU_START 0x14000000
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+#define IFXMIPS_EBU_MAX 0x00001000
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+#define IFXMIPS_EBU_BUSCON 0x1e7ff
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+#define IFXMIPS_EBU_WP 0x80000000
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+
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+static int shadow = (1 << 10) | (1 << 8);
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+static void __iomem *virt;
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+
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+static int
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+ifxmips_ebu_direction_input(struct gpio_chip *chip, unsigned offset)
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+{
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+ return -EINVAL;
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+}
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+
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+static int
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+ifxmips_ebu_direction_output(struct gpio_chip *chip, unsigned offset, int value)
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+{
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+ return 0;
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+}
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+
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+static int
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+ifxmips_ebu_get(struct gpio_chip *chip, unsigned offset)
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+{
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+ return -EINVAL;
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+}
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+
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+static void
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+ifxmips_ebu_set(struct gpio_chip *chip, unsigned offset, int value)
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+{
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+ if(value)
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+ shadow |= (1 << offset);
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+ else
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+ shadow &= ~(1 << offset);
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+ ifxmips_w32(IFXMIPS_EBU_BUSCON, IFXMIPS_EBU_BUSCON1);
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+ *((__u16*)virt) = shadow;
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+ ifxmips_w32(IFXMIPS_EBU_BUSCON | IFXMIPS_EBU_WP, IFXMIPS_EBU_BUSCON1);
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+}
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+
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+static struct gpio_chip
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+ifxmips_ebu_chip =
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+{
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+ .label = "ifxmips_ebu",
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+ .direction_input = ifxmips_ebu_direction_input,
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+ .direction_output = ifxmips_ebu_direction_output,
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+ .set = ifxmips_ebu_set,
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+ .get = ifxmips_ebu_get,
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+ .base = 32,
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+ .ngpio = 16,
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+ .can_sleep = 1,
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+ .owner = THIS_MODULE,
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+};
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+
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+static int __devinit
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+ifxmips_ebu_probe(struct platform_device *dev)
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+{
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+ ifxmips_w32(IFXMIPS_EBU_START | 0x1, IFXMIPS_EBU_ADDRSEL1);
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+ ifxmips_w32(IFXMIPS_EBU_BUSCON | IFXMIPS_EBU_WP, IFXMIPS_EBU_BUSCON1);
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+ virt = ioremap_nocache(IFXMIPS_EBU_START, IFXMIPS_EBU_MAX);
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+ if(gpiochip_add(&ifxmips_ebu_chip))
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+ return -EINVAL;
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+ return 0;
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+}
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+
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+static int
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+ifxmips_ebu_remove(struct platform_device *dev)
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+{
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+ return gpiochip_remove(&ifxmips_ebu_chip);
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+}
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+
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+static struct platform_driver
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+ifxmips_ebu_driver = {
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+ .probe = ifxmips_ebu_probe,
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+ .remove = ifxmips_ebu_remove,
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+ .driver = {
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+ .name = "ifxmips_ebu",
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+ .owner = THIS_MODULE,
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+ },
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+};
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+
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+static int __init
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+ifxmips_ebu_init(void)
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+{
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+ return platform_driver_register(&ifxmips_ebu_driver);
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+}
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+
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+static void __exit
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+ifxmips_ebu_exit(void)
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+{
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+ platform_driver_unregister(&ifxmips_ebu_driver);
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+}
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+
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+module_init(ifxmips_ebu_init);
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+module_exit(ifxmips_ebu_exit);
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+
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+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
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+MODULE_LICENSE("GPL v2");
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+MODULE_DESCRIPTION("ifxmips - EBU Latch GPIO-Expander");
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