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openwrt-xburst/target/linux/ixp4xx/patches-2.6.37/185-mi424wr_support.patch
acoul bb1657ec55 linux/ixp4xx: add preliminary 2.6.37 kernel support 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@23964 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-11-11 18:42:38 +00:00

466 lines
12 KiB
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--- /dev/null
+++ b/arch/arm/mach-ixp4xx/mi424wr-pci.c
@@ -0,0 +1,71 @@
+/*
+ * arch/arm/mach-ixp4xx/mi424wr-pci.c
+ *
+ * Actiontec MI424WR board-level PCI initialization
+ *
+ * Copyright (C) 2008 Jose Vasconcellos
+ *
+ * Maintainer: Jose Vasconcellos <jvasco@verizon.net>
+ *
+ * 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/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/pci.h>
+
+/* PCI controller GPIO to IRQ pin mappings
+ * This information was obtained from Actiontec's GPL release.
+ *
+ * INTA INTB
+ * SLOT 13 8 6
+ * SLOT 14 7 8
+ * SLOT 15 6 7
+ */
+
+void __init mi424wr_pci_preinit(void)
+{
+ set_irq_type(IRQ_IXP4XX_GPIO6, IRQ_TYPE_LEVEL_LOW);
+ set_irq_type(IRQ_IXP4XX_GPIO7, IRQ_TYPE_LEVEL_LOW);
+ set_irq_type(IRQ_IXP4XX_GPIO8, IRQ_TYPE_LEVEL_LOW);
+
+ ixp4xx_pci_preinit();
+}
+
+static int __init mi424wr_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ if (slot == 13)
+ return IRQ_IXP4XX_GPIO8;
+ if (slot == 14)
+ return IRQ_IXP4XX_GPIO7;
+ if (slot == 15)
+ return IRQ_IXP4XX_GPIO6;
+
+ return -1;
+}
+
+struct hw_pci mi424wr_pci __initdata = {
+ .nr_controllers = 1,
+ .preinit = mi424wr_pci_preinit,
+ .swizzle = pci_std_swizzle,
+ .setup = ixp4xx_setup,
+ .scan = ixp4xx_scan_bus,
+ .map_irq = mi424wr_map_irq,
+};
+
+int __init mi424wr_pci_init(void)
+{
+ if (machine_is_mi424wr())
+ pci_common_init(&mi424wr_pci);
+ return 0;
+}
+
+subsys_initcall(mi424wr_pci_init);
+
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/mi424wr-setup.c
@@ -0,0 +1,344 @@
+/*
+ * arch/arm/mach-ixp4xx/mi424wr-setup.c
+ *
+ * Actiontec MI424-WR board setup
+ * Copyright (c) 2008 Jose Vasconcellos
+ *
+ * Based on Gemtek GTWX5715 by
+ * Copyright (C) 2004 George T. Joseph
+ * Derived from Coyote
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/types.h>
+#include <linux/memory.h>
+#include <linux/leds.h>
+#include <linux/spi/spi_gpio_old.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+/*
+ * GPIO 2,3,4 and 9 are hard wired to the Micrel/Kendin KS8995M Switch
+ * and operate as an SPI type interface. The details of the interface
+ * are available on Kendin/Micrel's web site.
+ */
+
+#define MI424WR_KSSPI_SELECT 9
+#define MI424WR_KSSPI_TXD 4
+#define MI424WR_KSSPI_CLOCK 2
+#define MI424WR_KSSPI_RXD 3
+
+/*
+ * The "reset" button is wired to GPIO 10.
+ * The GPIO is brought "low" when the button is pushed.
+ */
+
+#define MI424WR_BUTTON_GPIO 10
+#define MI424WR_BUTTON_IRQ IRQ_IXP4XX_GPIO10
+
+#define MI424WR_MOCA_WAN_LED 11
+
+/* Latch on CS1 - taken from Actiontec's 2.4 source code
+ *
+ * default latch value
+ * 0 - power alarm led (red) 0 (off)
+ * 1 - power led (green) 0 (off)
+ * 2 - wireless led (green) 1 (off)
+ * 3 - no internet led (red) 0 (off)
+ * 4 - internet ok led (green) 0 (off)
+ * 5 - moca LAN 0 (off)
+ * 6 - WAN alarm led (red) 0 (off)
+ * 7 - PCI reset 1 (not reset)
+ * 8 - IP phone 1 led (green) 1 (off)
+ * 9 - IP phone 2 led (green) 1 (off)
+ * 10 - VOIP ready led (green) 1 (off)
+ * 11 - PSTN relay 1 control 0 (PSTN)
+ * 12 - PSTN relay 1 control 0 (PSTN)
+ * 13 - N/A
+ * 14 - N/A
+ * 15 - N/A
+ */
+
+#define MI424WR_LATCH_MASK 0x04
+#define MI424WR_LATCH_DEFAULT 0x1f86
+
+#define MI424WR_LATCH_ALARM_LED 0x00
+#define MI424WR_LATCH_POWER_LED 0x01
+#define MI424WR_LATCH_WIRELESS_LED 0x02
+#define MI424WR_LATCH_INET_DOWN_LED 0x03
+#define MI424WR_LATCH_INET_OK_LED 0x04
+#define MI424WR_LATCH_MOCA_LAN_LED 0x05
+#define MI424WR_LATCH_WAN_ALARM_LED 0x06
+#define MI424WR_LATCH_PCI_RESET 0x07
+#define MI424WR_LATCH_PHONE1_LED 0x08
+#define MI424WR_LATCH_PHONE2_LED 0x09
+#define MI424WR_LATCH_VOIP_LED 0x10
+#define MI424WR_LATCH_PSTN_RELAY1 0x11
+#define MI424WR_LATCH_PSTN_RELAY2 0x12
+
+/* initialize CS1 to default timings, Intel style, 16-bit bus */
+#define MI424WR_CS1_CONFIG 0x80000002
+
+/* Define both UARTs but they are not easily accessible.
+ */
+
+static struct resource mi424wr_uart_resources[] = {
+ {
+ .start = IXP4XX_UART1_BASE_PHYS,
+ .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IXP4XX_UART2_BASE_PHYS,
+ .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+
+static struct plat_serial8250_port mi424wr_uart_platform_data[] = {
+ {
+ .mapbase = IXP4XX_UART1_BASE_PHYS,
+ .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
+ .irq = IRQ_IXP4XX_UART1,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = IXP4XX_UART_XTAL,
+ },
+ {
+ .mapbase = IXP4XX_UART2_BASE_PHYS,
+ .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
+ .irq = IRQ_IXP4XX_UART2,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ .iotype = UPIO_MEM,
+ .regshift = 2,
+ .uartclk = IXP4XX_UART_XTAL,
+ },
+ { },
+};
+
+static struct platform_device mi424wr_uart_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev.platform_data = mi424wr_uart_platform_data,
+ .num_resources = ARRAY_SIZE(mi424wr_uart_resources),
+ .resource = mi424wr_uart_resources,
+};
+
+static struct flash_platform_data mi424wr_flash_data = {
+ .map_name = "cfi_probe",
+ .width = 2,
+};
+
+static struct resource mi424wr_flash_resource = {
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device mi424wr_flash = {
+ .name = "IXP4XX-Flash",
+ .id = 0,
+ .dev.platform_data = &mi424wr_flash_data,
+ .num_resources = 1,
+ .resource = &mi424wr_flash_resource,
+};
+
+static int mi424wr_spi_boardinfo_setup(struct spi_board_info *bi,
+ struct spi_master *master, void *data)
+{
+
+ strlcpy(bi->modalias, "spi-ks8995", sizeof(bi->modalias));
+
+ bi->max_speed_hz = 5000000 /* Hz */;
+ bi->bus_num = master->bus_num;
+ bi->mode = SPI_MODE_0;
+
+ return 0;
+}
+
+static struct spi_gpio_platform_data mi424wr_spi_bus_data = {
+ .pin_cs = MI424WR_KSSPI_SELECT,
+ .pin_clk = MI424WR_KSSPI_CLOCK,
+ .pin_miso = MI424WR_KSSPI_RXD,
+ .pin_mosi = MI424WR_KSSPI_TXD,
+ .cs_activelow = 1,
+ .no_spi_delay = 1,
+ .boardinfo_setup = mi424wr_spi_boardinfo_setup,
+};
+
+static struct gpio_led mi424wr_gpio_led[] = {
+ {
+ .name = "moca-wan", /* green led */
+ .gpio = MI424WR_MOCA_WAN_LED,
+ .active_low = 0,
+ }
+};
+
+static struct gpio_led_platform_data mi424wr_gpio_leds_data = {
+ .num_leds = 1,
+ .leds = mi424wr_gpio_led,
+};
+
+static struct platform_device mi424wr_gpio_leds = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev.platform_data = &mi424wr_gpio_leds_data,
+};
+
+static uint16_t latch_value = MI424WR_LATCH_DEFAULT;
+static uint16_t __iomem *iobase;
+
+static void mi424wr_latch_set_led(u8 bit, enum led_brightness value)
+{
+
+ if (((MI424WR_LATCH_MASK >> bit) & 1) ^ (value == LED_OFF))
+ latch_value &= ~(0x1 << bit);
+ else
+ latch_value |= (0x1 << bit);
+
+ __raw_writew(latch_value, iobase);
+
+}
+
+static struct latch_led mi424wr_latch_led[] = {
+ {
+ .name = "power-alarm",
+ .bit = MI424WR_LATCH_ALARM_LED,
+ },
+ {
+ .name = "power-ok",
+ .bit = MI424WR_LATCH_POWER_LED,
+ },
+ {
+ .name = "wireless", /* green led */
+ .bit = MI424WR_LATCH_WIRELESS_LED,
+ },
+ {
+ .name = "inet-down", /* red led */
+ .bit = MI424WR_LATCH_INET_DOWN_LED,
+ },
+ {
+ .name = "inet-up", /* green led */
+ .bit = MI424WR_LATCH_INET_OK_LED,
+ },
+ {
+ .name = "moca-lan", /* green led */
+ .bit = MI424WR_LATCH_MOCA_LAN_LED,
+ },
+ {
+ .name = "wan-alarm", /* red led */
+ .bit = MI424WR_LATCH_WAN_ALARM_LED,
+ }
+};
+
+static struct latch_led_platform_data mi424wr_latch_leds_data = {
+ .num_leds = ARRAY_SIZE(mi424wr_latch_led),
+ .mem = 0x51000000,
+ .leds = mi424wr_latch_led,
+ .set_led = mi424wr_latch_set_led,
+};
+
+static struct platform_device mi424wr_latch_leds = {
+ .name = "leds-latch",
+ .id = -1,
+ .dev.platform_data = &mi424wr_latch_leds_data,
+};
+
+static struct platform_device mi424wr_spi_bus = {
+ .name = "spi-gpio",
+ .id = 0,
+ .dev.platform_data = &mi424wr_spi_bus_data,
+};
+
+static struct eth_plat_info mi424wr_npeb_data = {
+ .phy = 17, /* KS8721 */
+ .rxq = 3,
+ .txreadyq = 20,
+};
+
+static struct eth_plat_info mi424wr_npec_data = {
+ .phy = IXP4XX_ETH_PHY_MAX_ADDR,
+ .phy_mask = 0x1e, /* ports 1-4 of the KS8995 switch */
+ .rxq = 4,
+ .txreadyq = 21,
+};
+
+static struct platform_device mi424wr_npe_devices[] = {
+ {
+ .name = "ixp4xx_eth",
+ .id = IXP4XX_ETH_NPEC,
+ .dev.platform_data = &mi424wr_npec_data,
+ }, {
+ .name = "ixp4xx_eth",
+ .id = IXP4XX_ETH_NPEB,
+ .dev.platform_data = &mi424wr_npeb_data,
+ }
+};
+
+static struct platform_device *mi424wr_devices[] __initdata = {
+ &mi424wr_uart_device,
+ &mi424wr_flash,
+ &mi424wr_gpio_leds,
+ &mi424wr_latch_leds,
+ &mi424wr_spi_bus,
+ &mi424wr_npe_devices[0],
+ &mi424wr_npe_devices[1],
+};
+
+static void __init mi424wr_init(void)
+{
+ ixp4xx_sys_init();
+
+ mi424wr_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
+ mi424wr_flash_resource.end = IXP4XX_EXP_BUS_BASE(0) + SZ_8M - 1;
+
+ *IXP4XX_EXP_CS0 |= IXP4XX_FLASH_WRITABLE;
+ *IXP4XX_EXP_CS1 = MI424WR_CS1_CONFIG;
+
+ /* configure button as input
+ */
+ gpio_line_config(MI424WR_BUTTON_GPIO, IXP4XX_GPIO_IN);
+
+ /* Initialize LEDs and enables PCI bus.
+ */
+ iobase = ioremap_nocache(IXP4XX_EXP_BUS_BASE(1), 0x1000);
+ __raw_writew(latch_value, iobase);
+
+ platform_add_devices(mi424wr_devices, ARRAY_SIZE(mi424wr_devices));
+}
+
+
+MACHINE_START(MI424WR, "Actiontec MI424WR")
+ /* Maintainer: Jose Vasconcellos */
+ .phys_io = IXP4XX_UART2_BASE_PHYS,
+ .io_pg_offst = ((IXP4XX_UART2_BASE_VIRT) >> 18) & 0xfffc,
+ .map_io = ixp4xx_map_io,
+ .init_irq = ixp4xx_init_irq,
+ .timer = &ixp4xx_timer,
+ .boot_params = 0x0100,
+ .init_machine = mi424wr_init,
+MACHINE_END
+
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -24,6 +24,7 @@ obj-pci-$(CONFIG_MACH_COMPEX) += ixdp42
obj-pci-$(CONFIG_MACH_WRT300NV2) += wrt300nv2-pci.o
obj-pci-$(CONFIG_MACH_AP1000) += ixdp425-pci.o
obj-pci-$(CONFIG_MACH_TW5334) += tw5334-pci.o
+obj-pci-$(CONFIG_MACH_MI424WR) += mi424wr-pci.o
obj-y += common.o
@@ -47,6 +48,7 @@ obj-$(CONFIG_MACH_COMPEX) += compex-setu
obj-$(CONFIG_MACH_WRT300NV2) += wrt300nv2-setup.o
obj-$(CONFIG_MACH_AP1000) += ap1000-setup.o
obj-$(CONFIG_MACH_TW5334) += tw5334-setup.o
+obj-$(CONFIG_MACH_MI424WR) += mi424wr-setup.o
obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o
obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -243,6 +243,13 @@ config MACH_GTWX5715
"High Speed" UART is n/c (as far as I can tell)
20 Pin ARM/Xscale JTAG interface on J2
+config MACH_MI424WR
+ bool "Actiontec MI424WR"
+ depends on ARCH_IXP4XX
+ select PCI
+ help
+ Add support for the Actiontec MI424-WR.
+
comment "IXP4xx Options"
config IXP4XX_INDIRECT_PCI
--- a/arch/arm/configs/ixp4xx_defconfig
+++ b/arch/arm/configs/ixp4xx_defconfig
@@ -26,6 +26,7 @@ CONFIG_MACH_NAS100D=y
CONFIG_MACH_DSMG600=y
CONFIG_MACH_FSG=y
CONFIG_MACH_GTWX5715=y
+CONFIG_MACH_MI424WR=y
CONFIG_IXP4XX_QMGR=y
CONFIG_IXP4XX_NPE=y
# CONFIG_ARM_THUMB is not set
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