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openwrt-xburst/target/linux/lantiq/patches/104-board_xway.patch
blogic 18a076fccd [lantiq] adds new lantiq kernel. once the codebase is fully tested and know to be working on all the devices previously supported by ifxmips, we will drop ifxmips support. 
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24526 3c298f89-4303-0410-b956-a3cf2f4a3e73
2010-12-12 22:57:16 +00:00

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--- /dev/null
+++ b/arch/mips/lantiq/xway/Kconfig
@@ -0,0 +1,19 @@
+if SOC_LANTIQ_XWAY
+
+menu "Mips Machine"
+
+config LANTIQ_MACH_EASY50812
+ bool "Easy50812"
+ default y
+
+config LANTIQ_MACH_EASY50712
+ bool "Easy50712"
+ default y
+
+config LANTIQ_MACH_EASY4010
+ bool "Easy4010"
+ default y
+
+endmenu
+
+endif
--- /dev/null
+++ b/arch/mips/lantiq/xway/gpio_ebu.c
@@ -0,0 +1,107 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+
+#include <xway.h>
+
+#define LQ_EBU_BUSCON 0x1e7ff
+#define LQ_EBU_WP 0x80000000
+
+static int shadow = 0x0000;
+static void __iomem *virt;
+
+static int
+lq_ebu_direction_output(struct gpio_chip *chip, unsigned offset, int value)
+{
+ return 0;
+}
+
+static void
+lq_ebu_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ unsigned long flags;
+ if(value)
+ shadow |= (1 << offset);
+ else
+ shadow &= ~(1 << offset);
+ spin_lock_irqsave(&ebu_lock, flags);
+ lq_w32(LQ_EBU_BUSCON, LQ_EBU_BUSCON1);
+ *((__u16*)virt) = shadow;
+ lq_w32(LQ_EBU_BUSCON | LQ_EBU_WP, LQ_EBU_BUSCON1);
+ spin_unlock_irqrestore(&ebu_lock, flags);
+}
+
+static struct gpio_chip
+lq_ebu_chip =
+{
+ .label = "lq_ebu",
+ .direction_output = lq_ebu_direction_output,
+ .set = lq_ebu_set,
+ .base = 32,
+ .ngpio = 16,
+ .can_sleep = 1,
+ .owner = THIS_MODULE,
+};
+
+static int __devinit
+lq_ebu_probe(struct platform_device *pdev)
+{
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ int ret = 0;
+ if (!res)
+ return -ENOENT;
+ res = request_mem_region(res->start, resource_size(res),
+ dev_name(&pdev->dev));
+ if (!res)
+ return -EBUSY;
+
+ /* tell the ebu controller which mem addr we will be using */
+ lq_w32(pdev->resource->start | 0x1, LQ_EBU_ADDRSEL1);
+ lq_w32(LQ_EBU_BUSCON | LQ_EBU_WP, LQ_EBU_BUSCON1);
+
+ virt = ioremap_nocache(res->start, resource_size(res));
+ if (!virt)
+ {
+ dev_err(&pdev->dev, "Failed to ioremap mem region\n");
+ ret = -ENOMEM;
+ goto err_release_mem_region;
+ }
+ /* grab the default settings passed form the platform code */
+ shadow = (unsigned int) pdev->dev.platform_data;
+
+ ret = gpiochip_add(&lq_ebu_chip);
+ if (!ret)
+ return 0;
+
+err_release_mem_region:
+ release_mem_region(res->start, resource_size(res));
+ return ret;
+}
+
+static struct platform_driver
+lq_ebu_driver = {
+ .probe = lq_ebu_probe,
+ .driver = {
+ .name = "lq_ebu",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init
+init_lq_ebu(void)
+{
+ return platform_driver_register(&lq_ebu_driver);
+}
+
+arch_initcall(init_lq_ebu);
--- /dev/null
+++ b/arch/mips/lantiq/xway/gpio_leds.c
@@ -0,0 +1,161 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
+ *
+ */
+
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+
+#include <xway.h>
+
+#define LQ_STP_BASE 0x1E100BB0
+#define LQ_STP_SIZE 0x40
+
+#define LQ_STP_CON0 0x00
+#define LQ_STP_CON1 0x04
+#define LQ_STP_CPU0 0x08
+#define LQ_STP_CPU1 0x0C
+#define LQ_STP_AR 0x10
+
+#define STP_CON0_SWU (1 << 31)
+
+#define LQ_STP_2HZ (0)
+#define LQ_STP_4HZ (1 << 23)
+#define LQ_STP_8HZ (2 << 23)
+#define LQ_STP_10HZ (3 << 23)
+#define LQ_STP_MASK (0xf << 23)
+
+#define LQ_STP_UPD_SRC_FPI (1 << 31)
+#define LQ_STP_UPD_MASK (3 << 30)
+#define LQ_STP_ADSL_SRC (3 << 24)
+
+#define LQ_STP_GROUP0 (1 << 0)
+
+#define LQ_STP_RISING 0
+#define LQ_STP_FALLING (1 << 26)
+#define LQ_STP_EDGE_MASK (1 << 26)
+
+#define lq_stp_r32(reg) __raw_readl(virt + reg)
+#define lq_stp_w32(val, reg) __raw_writel(val, virt + reg)
+#define lq_stp_w32_mask(clear, set, reg) \
+ lq_w32((lq_r32(virt + reg) & ~clear) | set, virt + reg)
+
+static int shadow = 0xffff;
+static void __iomem *virt;
+
+static int
+lq_stp_direction_output(struct gpio_chip *chip, unsigned offset, int value)
+{
+ return 0;
+}
+
+static void
+lq_stp_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ if(value)
+ shadow |= (1 << offset);
+ else
+ shadow &= ~(1 << offset);
+ lq_stp_w32(shadow, LQ_STP_CPU0);
+}
+
+static struct gpio_chip lq_stp_chip =
+{
+ .label = "lq_stp",
+ .direction_output = lq_stp_direction_output,
+ .set = lq_stp_set,
+ .base = 48,
+ .ngpio = 24,
+ .can_sleep = 1,
+ .owner = THIS_MODULE,
+};
+
+static int
+lq_stp_hw_init(void)
+{
+ /* the 3 pins used to control the external stp */
+ lq_gpio_request(4, 1, 0, 1, "stp-st");
+ lq_gpio_request(5, 1, 0, 1, "stp-d");
+ lq_gpio_request(6, 1, 0, 1, "stp-sh");
+
+ /* sane defaults */
+ lq_stp_w32(0, LQ_STP_AR);
+ lq_stp_w32(0, LQ_STP_CPU0);
+ lq_stp_w32(0, LQ_STP_CPU1);
+ lq_stp_w32(STP_CON0_SWU, LQ_STP_CON0);
+ lq_stp_w32(0, LQ_STP_CON1);
+
+ /* rising or falling edge */
+ lq_stp_w32_mask(LQ_STP_EDGE_MASK, LQ_STP_FALLING, LQ_STP_CON0);
+
+ /* per default stp 15-0 are set */
+ lq_stp_w32_mask(0, LQ_STP_GROUP0, LQ_STP_CON1);
+
+ /* stp are update periodically by the FPID */
+ lq_stp_w32_mask(LQ_STP_UPD_MASK, LQ_STP_UPD_SRC_FPI, LQ_STP_CON1);
+
+ /* set stp update speed */
+ lq_stp_w32_mask(LQ_STP_MASK, LQ_STP_8HZ, LQ_STP_CON1);
+
+ /* adsl 0 and 1 stp are updated by the arc */
+ lq_stp_w32_mask(0, LQ_STP_ADSL_SRC, LQ_STP_CON0);
+
+ lq_pmu_enable(PMU_LED);
+ return 0;
+}
+
+static int
+lq_stp_probe(struct platform_device *pdev)
+{
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ int ret = 0;
+ if (!res)
+ return -ENOENT;
+ res = request_mem_region(res->start, resource_size(res),
+ dev_name(&pdev->dev));
+ if (!res)
+ return -EBUSY;
+ virt = ioremap_nocache(res->start, resource_size(res));
+ if(!virt)
+ {
+ ret = -ENOMEM;
+ goto err_release_mem_region;
+ }
+ ret = gpiochip_add(&lq_stp_chip);
+ if(!ret)
+ return lq_stp_hw_init();
+
+ iounmap(virt);
+err_release_mem_region:
+ release_mem_region(res->start, resource_size(res));
+ return ret;
+}
+
+static struct platform_driver lq_stp_driver = {
+ .probe = lq_stp_probe,
+ .driver = {
+ .name = "lq_stp",
+ .owner = THIS_MODULE,
+ },
+};
+
+int __init
+init_lq_stp(void)
+{
+ int ret = platform_driver_register(&lq_stp_driver);
+ if (ret)
+ printk(KERN_INFO
+ "lq_stp: error registering platfom driver");
+ return ret;
+}
+
+arch_initcall(init_lq_stp);
--- /dev/null
+++ b/arch/mips/lantiq/xway/mach-easy4010.c
@@ -0,0 +1,79 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/gpio_buttons.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/input.h>
+
+#include <machine.h>
+
+#include <xway.h>
+#include <lantiq_platform.h>
+
+#include "devices.h"
+
+#ifdef CONFIG_MTD_PARTITIONS
+static struct mtd_partition easy4010_partitions[] =
+{
+ {
+ .name = "uboot",
+ .offset = 0x0,
+ .size = 0x20000,
+ },
+ {
+ .name = "uboot_env",
+ .offset = 0x20000,
+ .size = 0x10000,
+ },
+ {
+ .name = "linux",
+ .offset = 0x30000,
+ .size = 0x3D0000,
+ },
+};
+#endif
+
+static struct physmap_flash_data easy4010_flash_data = {
+#ifdef CONFIG_MTD_PARTITIONS
+ .nr_parts = ARRAY_SIZE(easy4010_partitions),
+ .parts = easy4010_partitions,
+#endif
+};
+
+static struct lq_pci_data lq_pci_data = {
+ .clock = PCI_CLOCK_INT,
+ .req_mask = 0xf,
+};
+
+static struct lq_eth_data lq_eth_data = {
+ .mii_mode = REV_MII_MODE,
+};
+
+static void __init
+easy4010_init(void)
+{
+ lq_register_gpio();
+ lq_register_gpio_stp();
+ lq_register_asc(0);
+ lq_register_asc(1);
+ lq_register_nor(&easy4010_flash_data);
+ lq_register_wdt();
+ lq_register_pci(&lq_pci_data);
+ lq_register_ethernet(&lq_eth_data);
+}
+
+MIPS_MACHINE(LANTIQ_MACH_EASY4010,
+ "EASY4010",
+ "EASY4010 Eval Board",
+ easy4010_init);
--- /dev/null
+++ b/arch/mips/lantiq/xway/mach-easy50712.c
@@ -0,0 +1,79 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/gpio_buttons.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/input.h>
+
+#include <machine.h>
+
+#include <xway.h>
+#include <lantiq_platform.h>
+
+#include "devices.h"
+
+#ifdef CONFIG_MTD_PARTITIONS
+static struct mtd_partition easy50712_partitions[] =
+{
+ {
+ .name = "uboot",
+ .offset = 0x0,
+ .size = 0x20000,
+ },
+ {
+ .name = "uboot_env",
+ .offset = 0x20000,
+ .size = 0x10000,
+ },
+ {
+ .name = "linux",
+ .offset = 0x30000,
+ .size = 0x3D0000,
+ },
+};
+#endif
+
+static struct physmap_flash_data easy50712_flash_data = {
+#ifdef CONFIG_MTD_PARTITIONS
+ .nr_parts = ARRAY_SIZE(easy50712_partitions),
+ .parts = easy50712_partitions,
+#endif
+};
+
+static struct lq_pci_data lq_pci_data = {
+ .clock = PCI_CLOCK_INT,
+ .req_mask = 0xf,
+};
+
+static struct lq_eth_data lq_eth_data = {
+ .mii_mode = REV_MII_MODE,
+};
+
+static void __init
+easy50712_init(void)
+{
+ lq_register_asc(0);
+ lq_register_asc(1);
+ lq_register_gpio();
+ lq_register_gpio_stp();
+ lq_register_nor(&easy50712_flash_data);
+ lq_register_wdt();
+ lq_register_pci(&lq_pci_data);
+ lq_register_ethernet(&lq_eth_data);
+}
+
+MIPS_MACHINE(LANTIQ_MACH_EASY50712,
+ "EASY50712",
+ "EASY50712 Eval Board",
+ easy50712_init);
--- /dev/null
+++ b/arch/mips/lantiq/xway/mach-easy50812.c
@@ -0,0 +1,78 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/gpio_buttons.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/input.h>
+
+#include <machine.h>
+
+#include <xway.h>
+#include <lantiq_platform.h>
+
+#include "devices.h"
+
+#ifdef CONFIG_MTD_PARTITIONS
+static struct mtd_partition easy50812_partitions[] =
+{
+ {
+ .name = "uboot",
+ .offset = 0x0,
+ .size = 0x40000,
+ },
+ {
+ .name = "uboot_env",
+ .offset = 0x40000,
+ .size = 0x10000,
+ },
+ {
+ .name = "linux",
+ .offset = 0x50000,
+ .size = 0x3B0000,
+ },
+};
+#endif
+
+static struct physmap_flash_data easy50812_flash_data = {
+#ifdef CONFIG_MTD_PARTITIONS
+ .nr_parts = ARRAY_SIZE(easy50812_partitions),
+ .parts = easy50812_partitions,
+#endif
+};
+
+static struct lq_pci_data lq_pci_data = {
+ .clock = PCI_CLOCK_INT,
+ .req_mask = 0xf,
+};
+
+static struct lq_eth_data lq_eth_data = {
+ .mii_mode = REV_MII_MODE,
+};
+
+static void __init
+easy50812_init(void)
+{
+ lq_register_gpio();
+ lq_register_asc(0);
+ lq_register_asc(1);
+ lq_register_nor(&easy50812_flash_data);
+ lq_register_wdt();
+ lq_register_pci(&lq_pci_data);
+ lq_register_ethernet(&lq_eth_data);
+}
+
+MIPS_MACHINE(LANTIQ_MACH_EASY50812,
+ "EASY50812",
+ "EASY50812 Eval Board",
+ easy50812_init);
--- /dev/null
+++ b/arch/mips/lantiq/xway/prom.c
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+
+#include <xway.h>
+
+#include "../prom.h"
+
+#define SOC_DANUBE "Danube"
+#define SOC_TWINPASS "Twinpass"
+#define SOC_AR9 "AR9"
+
+void __init
+lq_soc_detect(struct lq_soc_info *i)
+{
+ i->partnum = (lq_r32(LQ_MPS_CHIPID) & 0x0FFFFFFF) >> 12;
+ i->rev = (lq_r32(LQ_MPS_CHIPID) & 0xF0000000) >> 28;
+ switch (i->partnum)
+ {
+ case SOC_ID_DANUBE1:
+ case SOC_ID_DANUBE2:
+ i->name = SOC_DANUBE;
+ i->type = SOC_TYPE_DANUBE;
+ break;
+
+ case SOC_ID_TWINPASS:
+ i->name = SOC_TWINPASS;
+ i->type = SOC_TYPE_DANUBE;
+ break;
+
+ case SOC_ID_ARX188:
+ case SOC_ID_ARX168:
+ case SOC_ID_ARX182:
+ i->name = SOC_AR9;
+ i->type = SOC_TYPE_AR9;
+ break;
+
+ default:
+ printk(KERN_ERR "unknown chiprev : 0x%08X\n", i->partnum);
+ while(1) { };
+ break;
+ }
+}
--- /dev/null
+++ b/arch/mips/lantiq/xway/devices.c
@@ -0,0 +1,278 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/mtd/physmap.h>
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/etherdevice.h>
+#include <linux/reboot.h>
+#include <linux/time.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/leds.h>
+
+#include <asm/bootinfo.h>
+#include <asm/irq.h>
+
+#include <xway.h>
+#include <xway_irq.h>
+#include <lantiq_platform.h>
+
+#define IRQ_RES(resname,irq) {.name=#resname,.start=(irq),.flags=IORESOURCE_IRQ}
+
+/* gpio leds */
+static struct gpio_led_platform_data lq_gpio_led_data;
+
+static struct platform_device lq_gpio_leds =
+{
+ .name = "leds-gpio",
+ .dev = {
+ .platform_data = (void *) &lq_gpio_led_data,
+ }
+};
+
+void __init
+lq_register_gpio_leds(struct gpio_led *leds, int cnt)
+{
+ lq_gpio_led_data.leds = leds;
+ lq_gpio_led_data.num_leds = cnt;
+ platform_device_register(&lq_gpio_leds);
+}
+
+/* serial to parallel conversion */
+static struct resource lq_stp_resource =
+{
+ .name = "stp",
+ .start = LQ_STP_BASE,
+ .end = LQ_STP_BASE + LQ_STP_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+void __init
+lq_register_gpio_stp(void)
+{
+ platform_device_register_simple("lq_stp", 0, &lq_stp_resource, 1);
+}
+
+/* nor flash */
+static struct resource lq_nor_resource =
+{
+ .name = "nor",
+ .start = LQ_FLASH_START,
+ .end = LQ_FLASH_START + LQ_FLASH_MAX - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device lq_nor =
+{
+ .name = "lq_nor",
+ .resource = &lq_nor_resource,
+ .num_resources = 1,
+};
+
+void __init
+lq_register_nor(struct physmap_flash_data *data)
+{
+ lq_nor.dev.platform_data = data;
+ platform_device_register(&lq_nor);
+}
+
+/* watchdog */
+static struct resource lq_wdt_resource =
+{
+ .name = "watchdog",
+ .start = LQ_WDT_BASE,
+ .end = LQ_WDT_BASE + LQ_WDT_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+void __init
+lq_register_wdt(void)
+{
+ platform_device_register_simple("lq_wdt", 0, &lq_wdt_resource, 1);
+}
+
+/* gpio */
+static struct resource lq_gpio_resource[] = {
+ {
+ .name = "gpio0",
+ .start = LQ_GPIO0_BASE_ADDR,
+ .end = LQ_GPIO0_BASE_ADDR + LQ_GPIO_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ }, {
+ .name = "gpio1",
+ .start = LQ_GPIO1_BASE_ADDR,
+ .end = LQ_GPIO1_BASE_ADDR + LQ_GPIO_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+void __init
+lq_register_gpio(void)
+{
+ platform_device_register_simple("lq_gpio", 0, &lq_gpio_resource[0], 1);
+ platform_device_register_simple("lq_gpio", 1, &lq_gpio_resource[1], 1);
+}
+
+/* pci */
+static struct platform_device lq_pci =
+{
+ .name = "lq_pci",
+ .num_resources = 0,
+};
+
+void __init
+lq_register_pci(struct lq_pci_data *data)
+{
+ lq_pci.dev.platform_data = data;
+ platform_device_register(&lq_pci);
+}
+
+/* ebu */
+static struct resource lq_ebu_resource =
+{
+ .name = "gpio_ebu",
+ .start = LQ_EBU_GPIO_START,
+ .end = LQ_EBU_GPIO_START + LQ_EBU_GPIO_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+void __init
+lq_register_gpio_ebu(unsigned int value)
+{
+ platform_device_register_simple("lq_ebu", 0, &lq_ebu_resource, 1);
+}
+
+/* ethernet */
+unsigned char lq_ethaddr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+static int __init
+lq_set_ethaddr(char *str)
+{
+ sscanf(&str[8], "0%02hhx:0%02hhx:0%02hhx:0%02hhx:0%02hhx:0%02hhx",
+ &lq_ethaddr[0], &lq_ethaddr[1], &lq_ethaddr[2],
+ &lq_ethaddr[3], &lq_ethaddr[4], &lq_ethaddr[5]);
+ return 0;
+}
+__setup("ethaddr=", lq_set_ethaddr);
+
+static struct resource lq_ethernet_resources =
+{
+ .name = "etop",
+ .start = LQ_PPE32_BASE_ADDR,
+ .end = LQ_PPE32_BASE_ADDR + LQ_PPE32_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device lq_ethernet =
+{
+ .name = "lq_etop",
+ .resource = &lq_ethernet_resources,
+ .num_resources = 1,
+};
+
+void __init
+lq_register_ethernet(struct lq_eth_data *eth)
+{
+ if(!eth)
+ return;
+ if(!eth->mac)
+ eth->mac = lq_ethaddr;
+ if(!is_valid_ether_addr(eth->mac))
+ random_ether_addr(eth->mac);
+ lq_ethernet.dev.platform_data = eth;
+ platform_device_register(&lq_ethernet);
+}
+
+/* tapi */
+static struct resource mps_resources[] = {
+ {
+ .name = "voice-mem",
+ .flags = IORESOURCE_MEM,
+ .start = 0x1f107000,
+ .end = 0x1f1073ff,
+ },
+ {
+ .name = "voice-mailbox",
+ .flags = IORESOURCE_MEM,
+ .start = 0x1f200000,
+ .end = 0x1f2007ff,
+ },
+};
+
+static struct platform_device mps_device = {
+ .name = "mps",
+ .resource = mps_resources,
+ .num_resources = ARRAY_SIZE(mps_resources),
+};
+
+static struct platform_device vmmc_device = {
+ .name = "vmmc",
+ .dev = {
+ .parent = &mps_device.dev,
+ },
+};
+
+void __init
+lq_register_tapi(void)
+{
+#define CP1_SIZE (1 << 20)
+ dma_addr_t dma;
+ mps_device.dev.platform_data =
+ (void*)CPHYSADDR(dma_alloc_coherent(NULL, CP1_SIZE, &dma, GFP_ATOMIC));
+ platform_device_register(&mps_device);
+ platform_device_register(&vmmc_device);
+}
+
+/* asc ports */
+static struct resource lq_asc0_resources[] =
+{
+ {
+ .start = LQ_ASC0_BASE,
+ .end = LQ_ASC0_BASE + LQ_ASC_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ IRQ_RES(tx, INT_NUM_IM3_IRL0),
+ IRQ_RES(rx, INT_NUM_IM3_IRL0 + 1),
+ IRQ_RES(err, INT_NUM_IM3_IRL0 + 2),
+};
+
+static struct resource lq_asc1_resources[] =
+{
+ {
+ .start = LQ_ASC1_BASE,
+ .end = LQ_ASC1_BASE + LQ_ASC_SIZE - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ IRQ_RES(tx, INT_NUM_IM3_IRL0 + 8),
+ IRQ_RES(rx, INT_NUM_IM3_IRL0 + 9),
+ IRQ_RES(err, INT_NUM_IM3_IRL0 + 10),
+};
+
+void __init
+lq_register_asc(int port)
+{
+ switch (port) {
+ case 0:
+ platform_device_register_simple("lq_asc", 0,
+ lq_asc0_resources, ARRAY_SIZE(lq_asc0_resources));
+ break;
+ case 1:
+ platform_device_register_simple("lq_asc", 1,
+ lq_asc1_resources, ARRAY_SIZE(lq_asc1_resources));
+ break;
+ default:
+ break;
+ }
+}
--- /dev/null
+++ b/arch/mips/lantiq/xway/devices.h
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#ifndef _LQ_DEVICES_H__
+#define _LQ_DEVICES_H__
+
+#include <lantiq_platform.h>
+
+extern void __init lq_register_gpio(void);
+extern void __init lq_register_gpio_stp(void);
+extern void __init lq_register_gpio_ebu(unsigned int value);
+extern void __init lq_register_gpio_leds(struct gpio_led *leds, int cnt);
+extern void __init lq_register_pci(struct lq_pci_data *data);
+extern void __init lq_register_nor(struct physmap_flash_data *data);
+extern void __init lq_register_wdt(void);
+extern void __init lq_register_ethernet(struct lq_eth_data *eth);
+extern void __init lq_register_asc(int port);
+
+#endif
--- /dev/null
+++ b/arch/mips/lantiq/xway/dma.c
@@ -0,0 +1,701 @@
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/fs.h>
+#include <linux/errno.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/selection.h>
+#include <linux/kmod.h>
+#include <linux/vmalloc.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+
+#include <xway.h>
+#include <xway_irq.h>
+#include <xway_dma.h>
+
+#define LQ_DMA_CS ((u32 *)(LQ_DMA_BASE_ADDR + 0x18))
+#define LQ_DMA_CIE ((u32 *)(LQ_DMA_BASE_ADDR + 0x2C))
+#define LQ_DMA_IRNEN ((u32 *)(LQ_DMA_BASE_ADDR + 0xf4))
+#define LQ_DMA_CCTRL ((u32 *)(LQ_DMA_BASE_ADDR + 0x1C))
+#define LQ_DMA_CIS ((u32 *)(LQ_DMA_BASE_ADDR + 0x28))
+#define LQ_DMA_CDLEN ((u32 *)(LQ_DMA_BASE_ADDR + 0x24))
+#define LQ_DMA_PS ((u32 *)(LQ_DMA_BASE_ADDR + 0x40))
+#define LQ_DMA_PCTRL ((u32 *)(LQ_DMA_BASE_ADDR + 0x44))
+#define LQ_DMA_CTRL ((u32 *)(LQ_DMA_BASE_ADDR + 0x10))
+#define LQ_DMA_CPOLL ((u32 *)(LQ_DMA_BASE_ADDR + 0x14))
+#define LQ_DMA_CDBA ((u32 *)(LQ_DMA_BASE_ADDR + 0x20))
+
+/*25 descriptors for each dma channel,4096/8/20=25.xx*/
+#define LQ_DMA_DESCRIPTOR_OFFSET 25
+
+#define MAX_DMA_DEVICE_NUM 6 /*max ports connecting to dma */
+#define MAX_DMA_CHANNEL_NUM 20 /*max dma channels */
+#define DMA_INT_BUDGET 100 /*budget for interrupt handling */
+#define DMA_POLL_COUNTER 4 /*fix me, set the correct counter value here! */
+
+extern void lq_mask_and_ack_irq(unsigned int irq_nr);
+extern void lq_enable_irq(unsigned int irq_nr);
+extern void lq_disable_irq(unsigned int irq_nr);
+
+u64 *g_desc_list;
+struct dma_device_info dma_devs[MAX_DMA_DEVICE_NUM];
+struct dma_channel_info dma_chan[MAX_DMA_CHANNEL_NUM];
+
+static const char *global_device_name[MAX_DMA_DEVICE_NUM] =
+ { "PPE", "DEU", "SPI", "SDIO", "MCTRL0", "MCTRL1" };
+
+struct dma_chan_map default_dma_map[MAX_DMA_CHANNEL_NUM] = {
+ {"PPE", LQ_DMA_RX, 0, LQ_DMA_CH0_INT, 0},
+ {"PPE", LQ_DMA_TX, 0, LQ_DMA_CH1_INT, 0},
+ {"PPE", LQ_DMA_RX, 1, LQ_DMA_CH2_INT, 1},
+ {"PPE", LQ_DMA_TX, 1, LQ_DMA_CH3_INT, 1},
+ {"PPE", LQ_DMA_RX, 2, LQ_DMA_CH4_INT, 2},
+ {"PPE", LQ_DMA_TX, 2, LQ_DMA_CH5_INT, 2},
+ {"PPE", LQ_DMA_RX, 3, LQ_DMA_CH6_INT, 3},
+ {"PPE", LQ_DMA_TX, 3, LQ_DMA_CH7_INT, 3},
+ {"DEU", LQ_DMA_RX, 0, LQ_DMA_CH8_INT, 0},
+ {"DEU", LQ_DMA_TX, 0, LQ_DMA_CH9_INT, 0},
+ {"DEU", LQ_DMA_RX, 1, LQ_DMA_CH10_INT, 1},
+ {"DEU", LQ_DMA_TX, 1, LQ_DMA_CH11_INT, 1},
+ {"SPI", LQ_DMA_RX, 0, LQ_DMA_CH12_INT, 0},
+ {"SPI", LQ_DMA_TX, 0, LQ_DMA_CH13_INT, 0},
+ {"SDIO", LQ_DMA_RX, 0, LQ_DMA_CH14_INT, 0},
+ {"SDIO", LQ_DMA_TX, 0, LQ_DMA_CH15_INT, 0},
+ {"MCTRL0", LQ_DMA_RX, 0, LQ_DMA_CH16_INT, 0},
+ {"MCTRL0", LQ_DMA_TX, 0, LQ_DMA_CH17_INT, 0},
+ {"MCTRL1", LQ_DMA_RX, 1, LQ_DMA_CH18_INT, 1},
+ {"MCTRL1", LQ_DMA_TX, 1, LQ_DMA_CH19_INT, 1}
+};
+
+struct dma_chan_map *chan_map = default_dma_map;
+volatile u32 g_lq_dma_int_status;
+volatile int g_lq_dma_in_process; /* 0=not in process, 1=in process */
+
+void do_dma_tasklet(unsigned long);
+DECLARE_TASKLET(dma_tasklet, do_dma_tasklet, 0);
+
+u8 *common_buffer_alloc(int len, int *byte_offset, void **opt)
+{
+ u8 *buffer = kmalloc(len * sizeof(u8), GFP_KERNEL);
+
+ *byte_offset = 0;
+
+ return buffer;
+}
+
+void common_buffer_free(u8 *dataptr, void *opt)
+{
+ kfree(dataptr);
+}
+
+void enable_ch_irq(struct dma_channel_info *pCh)
+{
+ int chan_no = (int)(pCh - dma_chan);
+ unsigned long flag;
+
+ local_irq_save(flag);
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(0x4a, LQ_DMA_CIE);
+ lq_w32(lq_r32(LQ_DMA_IRNEN) | (1 << chan_no), LQ_DMA_IRNEN);
+ local_irq_restore(flag);
+ lq_enable_irq(pCh->irq);
+}
+
+void disable_ch_irq(struct dma_channel_info *pCh)
+{
+ unsigned long flag;
+ int chan_no = (int) (pCh - dma_chan);
+
+ local_irq_save(flag);
+ g_lq_dma_int_status &= ~(1 << chan_no);
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(0, LQ_DMA_CIE);
+ lq_w32(lq_r32(LQ_DMA_IRNEN) & ~(1 << chan_no), LQ_DMA_IRNEN);
+ local_irq_restore(flag);
+ lq_mask_and_ack_irq(pCh->irq);
+}
+
+void open_chan(struct dma_channel_info *pCh)
+{
+ unsigned long flag;
+ int chan_no = (int)(pCh - dma_chan);
+
+ local_irq_save(flag);
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(lq_r32(LQ_DMA_CCTRL) | 1, LQ_DMA_CCTRL);
+ if (pCh->dir == LQ_DMA_RX)
+ enable_ch_irq(pCh);
+ local_irq_restore(flag);
+}
+
+void close_chan(struct dma_channel_info *pCh)
+{
+ unsigned long flag;
+ int chan_no = (int) (pCh - dma_chan);
+
+ local_irq_save(flag);
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(lq_r32(LQ_DMA_CCTRL) & ~1, LQ_DMA_CCTRL);
+ disable_ch_irq(pCh);
+ local_irq_restore(flag);
+}
+
+void reset_chan(struct dma_channel_info *pCh)
+{
+ int chan_no = (int) (pCh - dma_chan);
+
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(lq_r32(LQ_DMA_CCTRL) | 2, LQ_DMA_CCTRL);
+}
+
+void rx_chan_intr_handler(int chan_no)
+{
+ struct dma_device_info *pDev = (struct dma_device_info *)dma_chan[chan_no].dma_dev;
+ struct dma_channel_info *pCh = &dma_chan[chan_no];
+ struct rx_desc *rx_desc_p;
+ int tmp;
+ unsigned long flag;
+
+ /*handle command complete interrupt */
+ rx_desc_p = (struct rx_desc *)pCh->desc_base + pCh->curr_desc;
+ if (rx_desc_p->status.field.OWN == CPU_OWN
+ && rx_desc_p->status.field.C
+ && rx_desc_p->status.field.data_length < 1536){
+ /* Every thing is correct, then we inform the upper layer */
+ pDev->current_rx_chan = pCh->rel_chan_no;
+ if (pDev->intr_handler)
+ pDev->intr_handler(pDev, RCV_INT);
+ pCh->weight--;
+ } else {
+ local_irq_save(flag);
+ tmp = lq_r32(LQ_DMA_CS);
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(lq_r32(LQ_DMA_CIS) | 0x7e, LQ_DMA_CIS);
+ lq_w32(tmp, LQ_DMA_CS);
+ g_lq_dma_int_status &= ~(1 << chan_no);
+ local_irq_restore(flag);
+ lq_enable_irq(dma_chan[chan_no].irq);
+ }
+}
+
+inline void tx_chan_intr_handler(int chan_no)
+{
+ struct dma_device_info *pDev = (struct dma_device_info *)dma_chan[chan_no].dma_dev;
+ struct dma_channel_info *pCh = &dma_chan[chan_no];
+ int tmp;
+ unsigned long flag;
+
+ local_irq_save(flag);
+ tmp = lq_r32(LQ_DMA_CS);
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(lq_r32(LQ_DMA_CIS) | 0x7e, LQ_DMA_CIS);
+ lq_w32(tmp, LQ_DMA_CS);
+ g_lq_dma_int_status &= ~(1 << chan_no);
+ local_irq_restore(flag);
+ pDev->current_tx_chan = pCh->rel_chan_no;
+ if (pDev->intr_handler)
+ pDev->intr_handler(pDev, TRANSMIT_CPT_INT);
+}
+
+void do_dma_tasklet(unsigned long unused)
+{
+ int i;
+ int chan_no = 0;
+ int budget = DMA_INT_BUDGET;
+ int weight = 0;
+ unsigned long flag;
+
+ while (g_lq_dma_int_status) {
+ if (budget-- < 0) {
+ tasklet_schedule(&dma_tasklet);
+ return;
+ }
+ chan_no = -1;
+ weight = 0;
+ for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
+ if ((g_lq_dma_int_status & (1 << i)) && dma_chan[i].weight > 0) {
+ if (dma_chan[i].weight > weight) {
+ chan_no = i;
+ weight = dma_chan[chan_no].weight;
+ }
+ }
+ }
+
+ if (chan_no >= 0) {
+ if (chan_map[chan_no].dir == LQ_DMA_RX)
+ rx_chan_intr_handler(chan_no);
+ else
+ tx_chan_intr_handler(chan_no);
+ } else {
+ for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++)
+ dma_chan[i].weight = dma_chan[i].default_weight;
+ }
+ }
+
+ local_irq_save(flag);
+ g_lq_dma_in_process = 0;
+ if (g_lq_dma_int_status) {
+ g_lq_dma_in_process = 1;
+ tasklet_schedule(&dma_tasklet);
+ }
+ local_irq_restore(flag);
+}
+
+irqreturn_t dma_interrupt(int irq, void *dev_id)
+{
+ struct dma_channel_info *pCh;
+ int chan_no = 0;
+ int tmp;
+
+ pCh = (struct dma_channel_info *)dev_id;
+ chan_no = (int)(pCh - dma_chan);
+ if (chan_no < 0 || chan_no > 19)
+ BUG();
+
+ tmp = lq_r32(LQ_DMA_IRNEN);
+ lq_w32(0, LQ_DMA_IRNEN);
+ g_lq_dma_int_status |= 1 << chan_no;
+ lq_w32(tmp, LQ_DMA_IRNEN);
+ lq_mask_and_ack_irq(irq);
+
+ if (!g_lq_dma_in_process) {
+ g_lq_dma_in_process = 1;
+ tasklet_schedule(&dma_tasklet);
+ }
+
+ return IRQ_HANDLED;
+}
+
+struct dma_device_info *dma_device_reserve(char *dev_name)
+{
+ int i;
+
+ for (i = 0; i < MAX_DMA_DEVICE_NUM; i++) {
+ if (strcmp(dev_name, dma_devs[i].device_name) == 0) {
+ if (dma_devs[i].reserved)
+ return NULL;
+ dma_devs[i].reserved = 1;
+ break;
+ }
+ }
+
+ return &dma_devs[i];
+}
+EXPORT_SYMBOL(dma_device_reserve);
+
+void dma_device_release(struct dma_device_info *dev)
+{
+ dev->reserved = 0;
+}
+EXPORT_SYMBOL(dma_device_release);
+
+void dma_device_register(struct dma_device_info *dev)
+{
+ int i, j;
+ int chan_no = 0;
+ u8 *buffer;
+ int byte_offset;
+ unsigned long flag;
+ struct dma_device_info *pDev;
+ struct dma_channel_info *pCh;
+ struct rx_desc *rx_desc_p;
+ struct tx_desc *tx_desc_p;
+
+ for (i = 0; i < dev->max_tx_chan_num; i++) {
+ pCh = dev->tx_chan[i];
+ if (pCh->control == LQ_DMA_CH_ON) {
+ chan_no = (int)(pCh - dma_chan);
+ for (j = 0; j < pCh->desc_len; j++) {
+ tx_desc_p = (struct tx_desc *)pCh->desc_base + j;
+ memset(tx_desc_p, 0, sizeof(struct tx_desc));
+ }
+ local_irq_save(flag);
+ lq_w32(chan_no, LQ_DMA_CS);
+ /* check if the descriptor length is changed */
+ if (lq_r32(LQ_DMA_CDLEN) != pCh->desc_len)
+ lq_w32(pCh->desc_len, LQ_DMA_CDLEN);
+
+ lq_w32(lq_r32(LQ_DMA_CCTRL) & ~1, LQ_DMA_CCTRL);
+ lq_w32(lq_r32(LQ_DMA_CCTRL) | 2, LQ_DMA_CCTRL);
+ while (lq_r32(LQ_DMA_CCTRL) & 2)
+ ;
+ lq_w32(lq_r32(LQ_DMA_IRNEN) | (1 << chan_no), LQ_DMA_IRNEN);
+ lq_w32(0x30100, LQ_DMA_CCTRL); /* reset and enable channel,enable channel later */
+ local_irq_restore(flag);
+ }
+ }
+
+ for (i = 0; i < dev->max_rx_chan_num; i++) {
+ pCh = dev->rx_chan[i];
+ if (pCh->control == LQ_DMA_CH_ON) {
+ chan_no = (int)(pCh - dma_chan);
+
+ for (j = 0; j < pCh->desc_len; j++) {
+ rx_desc_p = (struct rx_desc *)pCh->desc_base + j;
+ pDev = (struct dma_device_info *)(pCh->dma_dev);
+ buffer = pDev->buffer_alloc(pCh->packet_size, &byte_offset, (void *)&(pCh->opt[j]));
+ if (!buffer)
+ break;
+
+ dma_cache_inv((unsigned long) buffer, pCh->packet_size);
+
+ rx_desc_p->Data_Pointer = (u32)CPHYSADDR((u32)buffer);
+ rx_desc_p->status.word = 0;
+ rx_desc_p->status.field.byte_offset = byte_offset;
+ rx_desc_p->status.field.OWN = DMA_OWN;
+ rx_desc_p->status.field.data_length = pCh->packet_size;
+ }
+
+ local_irq_save(flag);
+ lq_w32(chan_no, LQ_DMA_CS);
+ /* check if the descriptor length is changed */
+ if (lq_r32(LQ_DMA_CDLEN) != pCh->desc_len)
+ lq_w32(pCh->desc_len, LQ_DMA_CDLEN);
+ lq_w32(lq_r32(LQ_DMA_CCTRL) & ~1, LQ_DMA_CCTRL);
+ lq_w32(lq_r32(LQ_DMA_CCTRL) | 2, LQ_DMA_CCTRL);
+ while (lq_r32(LQ_DMA_CCTRL) & 2)
+ ;
+ lq_w32(0x0a, LQ_DMA_CIE); /* fix me, should enable all the interrupts here? */
+ lq_w32(lq_r32(LQ_DMA_IRNEN) | (1 << chan_no), LQ_DMA_IRNEN);
+ lq_w32(0x30000, LQ_DMA_CCTRL);
+ local_irq_restore(flag);
+ lq_enable_irq(dma_chan[chan_no].irq);
+ }
+ }
+}
+EXPORT_SYMBOL(dma_device_register);
+
+void dma_device_unregister(struct dma_device_info *dev)
+{
+ int i, j;
+ int chan_no;
+ struct dma_channel_info *pCh;
+ struct rx_desc *rx_desc_p;
+ struct tx_desc *tx_desc_p;
+ unsigned long flag;
+
+ for (i = 0; i < dev->max_tx_chan_num; i++) {
+ pCh = dev->tx_chan[i];
+ if (pCh->control == LQ_DMA_CH_ON) {
+ chan_no = (int)(dev->tx_chan[i] - dma_chan);
+ local_irq_save(flag);
+ lq_w32(chan_no, LQ_DMA_CS);
+ pCh->curr_desc = 0;
+ pCh->prev_desc = 0;
+ pCh->control = LQ_DMA_CH_OFF;
+ lq_w32(0, LQ_DMA_CIE); /* fix me, should disable all the interrupts here? */
+ lq_w32(lq_r32(LQ_DMA_IRNEN) & ~(1 << chan_no), LQ_DMA_IRNEN); /* disable interrupts */
+ lq_w32(lq_r32(LQ_DMA_CCTRL) & ~1, LQ_DMA_CCTRL);
+ while (lq_r32(LQ_DMA_CCTRL) & 1)
+ ;
+ local_irq_restore(flag);
+
+ for (j = 0; j < pCh->desc_len; j++) {
+ tx_desc_p = (struct tx_desc *)pCh->desc_base + j;
+ if ((tx_desc_p->status.field.OWN == CPU_OWN && tx_desc_p->status.field.C)
+ || (tx_desc_p->status.field.OWN == DMA_OWN && tx_desc_p->status.field.data_length > 0)) {
+ dev->buffer_free((u8 *) __va(tx_desc_p->Data_Pointer), (void *)pCh->opt[j]);
+ }
+ tx_desc_p->status.field.OWN = CPU_OWN;
+ memset(tx_desc_p, 0, sizeof(struct tx_desc));
+ }
+ /* TODO should free buffer that is not transferred by dma */
+ }
+ }
+
+ for (i = 0; i < dev->max_rx_chan_num; i++) {
+ pCh = dev->rx_chan[i];
+ chan_no = (int)(dev->rx_chan[i] - dma_chan);
+ lq_disable_irq(pCh->irq);
+
+ local_irq_save(flag);
+ g_lq_dma_int_status &= ~(1 << chan_no);
+ pCh->curr_desc = 0;
+ pCh->prev_desc = 0;
+ pCh->control = LQ_DMA_CH_OFF;
+
+ lq_w32(chan_no, LQ_DMA_CS);
+ lq_w32(0, LQ_DMA_CIE); /* fix me, should disable all the interrupts here? */
+ lq_w32(lq_r32(LQ_DMA_IRNEN) & ~(1 << chan_no), LQ_DMA_IRNEN); /* disable interrupts */
+ lq_w32(lq_r32(LQ_DMA_CCTRL) & ~1, LQ_DMA_CCTRL);
+ while (lq_r32(LQ_DMA_CCTRL) & 1)
+ ;
+
+ local_irq_restore(flag);
+ for (j = 0; j < pCh->desc_len; j++) {
+ rx_desc_p = (struct rx_desc *) pCh->desc_base + j;
+ if ((rx_desc_p->status.field.OWN == CPU_OWN
+ && rx_desc_p->status.field.C)
+ || (rx_desc_p->status.field.OWN == DMA_OWN
+ && rx_desc_p->status.field.data_length > 0)) {
+ dev->buffer_free((u8 *)
+ __va(rx_desc_p->Data_Pointer),
+ (void *) pCh->opt[j]);
+ }
+ }
+ }
+}
+EXPORT_SYMBOL(dma_device_unregister);
+
+int dma_device_read(struct dma_device_info *dma_dev, u8 **dataptr, void **opt)
+{
+ u8 *buf;
+ int len;
+ int byte_offset = 0;
+ void *p = NULL;
+ struct dma_channel_info *pCh = dma_dev->rx_chan[dma_dev->current_rx_chan];
+ struct rx_desc *rx_desc_p;
+
+ /* get the rx data first */
+ rx_desc_p = (struct rx_desc *) pCh->desc_base + pCh->curr_desc;
+ if (!(rx_desc_p->status.field.OWN == CPU_OWN && rx_desc_p->status.field.C))
+ return 0;
+
+ buf = (u8 *) __va(rx_desc_p->Data_Pointer);
+ *(u32 *)dataptr = (u32)buf;
+ len = rx_desc_p->status.field.data_length;
+
+ if (opt)
+ *(int *)opt = (int)pCh->opt[pCh->curr_desc];
+
+ /* replace with a new allocated buffer */
+ buf = dma_dev->buffer_alloc(pCh->packet_size, &byte_offset, &p);
+
+ if (buf) {
+ dma_cache_inv((unsigned long) buf, pCh->packet_size);
+ pCh->opt[pCh->curr_desc] = p;
+ wmb();
+
+ rx_desc_p->Data_Pointer = (u32) CPHYSADDR((u32) buf);
+ rx_desc_p->status.word = (DMA_OWN << 31) | ((byte_offset) << 23) | pCh->packet_size;
+ wmb();
+ } else {
+ *(u32 *) dataptr = 0;
+ if (opt)
+ *(int *) opt = 0;
+ len = 0;
+ }
+
+ /* increase the curr_desc pointer */
+ pCh->curr_desc++;
+ if (pCh->curr_desc == pCh->desc_len)
+ pCh->curr_desc = 0;
+
+ return len;
+}
+EXPORT_SYMBOL(dma_device_read);
+
+int dma_device_write(struct dma_device_info *dma_dev, u8 *dataptr, int len, void *opt)
+{
+ unsigned long flag;
+ u32 tmp, byte_offset;
+ struct dma_channel_info *pCh;
+ int chan_no;
+ struct tx_desc *tx_desc_p;
+ local_irq_save(flag);
+
+ pCh = dma_dev->tx_chan[dma_dev->current_tx_chan];
+ chan_no = (int)(pCh - (struct dma_channel_info *) dma_chan);
+
+ tx_desc_p = (struct tx_desc *)pCh->desc_base + pCh->prev_desc;
+ while (tx_desc_p->status.field.OWN == CPU_OWN && tx_desc_p->status.field.C) {
+ dma_dev->buffer_free((u8 *) __va(tx_desc_p->Data_Pointer), pCh->opt[pCh->prev_desc]);
+ memset(tx_desc_p, 0, sizeof(struct tx_desc));
+ pCh->prev_desc = (pCh->prev_desc + 1) % (pCh->desc_len);
+ tx_desc_p = (struct tx_desc *)pCh->desc_base + pCh->prev_desc;
+ }
+ tx_desc_p = (struct tx_desc *)pCh->desc_base + pCh->curr_desc;
+ /* Check whether this descriptor is available */
+ if (tx_desc_p->status.field.OWN == DMA_OWN || tx_desc_p->status.field.C) {
+ /* if not, the tell the upper layer device */
+ dma_dev->intr_handler (dma_dev, TX_BUF_FULL_INT);
+ local_irq_restore(flag);
+ printk(KERN_INFO "%s %d: failed to write!\n", __func__, __LINE__);
+
+ return 0;
+ }
+ pCh->opt[pCh->curr_desc] = opt;
+ /* byte offset----to adjust the starting address of the data buffer, should be multiple of the burst length. */
+ byte_offset = ((u32) CPHYSADDR((u32) dataptr)) % ((dma_dev->tx_burst_len) * 4);
+ dma_cache_wback((unsigned long) dataptr, len);
+ wmb();
+ tx_desc_p->Data_Pointer = (u32) CPHYSADDR((u32) dataptr) - byte_offset;
+ wmb();
+ tx_desc_p->status.word = (DMA_OWN << 31) | DMA_DESC_SOP_SET | DMA_DESC_EOP_SET | ((byte_offset) << 23) | len;
+ wmb();
+
+ pCh->curr_desc++;
+ if (pCh->curr_desc == pCh->desc_len)
+ pCh->curr_desc = 0;
+
+ /*Check whether this descriptor is available */
+ tx_desc_p = (struct tx_desc *) pCh->desc_base + pCh->curr_desc;
+ if (tx_desc_p->status.field.OWN == DMA_OWN) {
+ /*if not , the tell the upper layer device */
+ dma_dev->intr_handler (dma_dev, TX_BUF_FULL_INT);
+ }
+
+ lq_w32(chan_no, LQ_DMA_CS);
+ tmp = lq_r32(LQ_DMA_CCTRL);
+
+ if (!(tmp & 1))
+ pCh->open(pCh);
+
+ local_irq_restore(flag);
+
+ return len;
+}
+EXPORT_SYMBOL(dma_device_write);
+
+int map_dma_chan(struct dma_chan_map *map)
+{
+ int i, j;
+ int result;
+
+ for (i = 0; i < MAX_DMA_DEVICE_NUM; i++)
+ strcpy(dma_devs[i].device_name, global_device_name[i]);
+
+ for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
+ dma_chan[i].irq = map[i].irq;
+ result = request_irq(dma_chan[i].irq, dma_interrupt, IRQF_DISABLED, map[i].dev_name, (void *)&dma_chan[i]);
+ if (result) {
+ printk(KERN_WARNING "error, cannot get dma_irq!\n");
+ free_irq(dma_chan[i].irq, (void *) &dma_interrupt);
+
+ return -EFAULT;
+ }
+ }
+
+ for (i = 0; i < MAX_DMA_DEVICE_NUM; i++) {
+ dma_devs[i].num_tx_chan = 0; /*set default tx channel number to be one */
+ dma_devs[i].num_rx_chan = 0; /*set default rx channel number to be one */
+ dma_devs[i].max_rx_chan_num = 0;
+ dma_devs[i].max_tx_chan_num = 0;
+ dma_devs[i].buffer_alloc = &common_buffer_alloc;
+ dma_devs[i].buffer_free = &common_buffer_free;
+ dma_devs[i].intr_handler = NULL;
+ dma_devs[i].tx_burst_len = 4;
+ dma_devs[i].rx_burst_len = 4;
+ if (i == 0) {
+ lq_w32(0, LQ_DMA_PS);
+ lq_w32(lq_r32(LQ_DMA_PCTRL) | ((0xf << 8) | (1 << 6)), LQ_DMA_PCTRL); /*enable dma drop */
+ }
+
+ if (i == 1) {
+ lq_w32(1, LQ_DMA_PS);
+ lq_w32(0x14, LQ_DMA_PCTRL); /*deu port setting */
+ }
+
+ for (j = 0; j < MAX_DMA_CHANNEL_NUM; j++) {
+ dma_chan[j].byte_offset = 0;
+ dma_chan[j].open = &open_chan;
+ dma_chan[j].close = &close_chan;
+ dma_chan[j].reset = &reset_chan;
+ dma_chan[j].enable_irq = &enable_ch_irq;
+ dma_chan[j].disable_irq = &disable_ch_irq;
+ dma_chan[j].rel_chan_no = map[j].rel_chan_no;
+ dma_chan[j].control = LQ_DMA_CH_OFF;
+ dma_chan[j].default_weight = LQ_DMA_CH_DEFAULT_WEIGHT;
+ dma_chan[j].weight = dma_chan[j].default_weight;
+ dma_chan[j].curr_desc = 0;
+ dma_chan[j].prev_desc = 0;
+ }
+
+ for (j = 0; j < MAX_DMA_CHANNEL_NUM; j++) {
+ if (strcmp(dma_devs[i].device_name, map[j].dev_name) == 0) {
+ if (map[j].dir == LQ_DMA_RX) {
+ dma_chan[j].dir = LQ_DMA_RX;
+ dma_devs[i].max_rx_chan_num++;
+ dma_devs[i].rx_chan[dma_devs[i].max_rx_chan_num - 1] = &dma_chan[j];
+ dma_devs[i].rx_chan[dma_devs[i].max_rx_chan_num - 1]->pri = map[j].pri;
+ dma_chan[j].dma_dev = (void *)&dma_devs[i];
+ } else if (map[j].dir == LQ_DMA_TX) {
+ /*TX direction */
+ dma_chan[j].dir = LQ_DMA_TX;
+ dma_devs[i].max_tx_chan_num++;
+ dma_devs[i].tx_chan[dma_devs[i].max_tx_chan_num - 1] = &dma_chan[j];
+ dma_devs[i].tx_chan[dma_devs[i].max_tx_chan_num - 1]->pri = map[j].pri;
+ dma_chan[j].dma_dev = (void *)&dma_devs[i];
+ } else {
+ printk(KERN_WARNING "WRONG DMA MAP!\n");
+ }
+ }
+ }
+ }
+
+ return 0;
+}
+
+void dma_chip_init(void)
+{
+ int i;
+
+ /* enable DMA from PMU */
+ lq_pmu_enable(PMU_DMA);
+
+ /* reset DMA */
+ lq_w32(lq_r32(LQ_DMA_CTRL) | 1, LQ_DMA_CTRL);
+
+ /* disable all interrupts */
+ lq_w32(0, LQ_DMA_IRNEN);
+
+ for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
+ lq_w32(i, LQ_DMA_CS);
+ lq_w32(0x2, LQ_DMA_CCTRL);
+ lq_w32(0x80000040, LQ_DMA_CPOLL);
+ lq_w32(lq_r32(LQ_DMA_CCTRL) & ~0x1, LQ_DMA_CCTRL);
+ }
+}
+
+int lq_dma_init(void)
+{
+ int i;
+
+ dma_chip_init();
+
+ if (map_dma_chan(default_dma_map))
+ BUG();
+
+ g_desc_list = (u64 *)KSEG1ADDR(__get_free_page(GFP_DMA));
+
+ if (g_desc_list == NULL) {
+ printk(KERN_WARNING "no memory for desriptor\n");
+ return -ENOMEM;
+ }
+
+ memset(g_desc_list, 0, PAGE_SIZE);
+
+ for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++) {
+ dma_chan[i].desc_base = (u32)g_desc_list + i * LQ_DMA_DESCRIPTOR_OFFSET * 8;
+ dma_chan[i].curr_desc = 0;
+ dma_chan[i].desc_len = LQ_DMA_DESCRIPTOR_OFFSET;
+
+ lq_w32(i, LQ_DMA_CS);
+ lq_w32((u32)CPHYSADDR(dma_chan[i].desc_base), LQ_DMA_CDBA);
+ lq_w32(dma_chan[i].desc_len, LQ_DMA_CDLEN);
+ }
+ return 0;
+}
+
+arch_initcall(lq_dma_init);
+
+void dma_cleanup(void)
+{
+ int i;
+
+ free_page(KSEG0ADDR((unsigned long) g_desc_list));
+ for (i = 0; i < MAX_DMA_CHANNEL_NUM; i++)
+ free_irq(dma_chan[i].irq, (void *)&dma_interrupt);
+}
+
+MODULE_LICENSE("GPL");
--- /dev/null
+++ b/arch/mips/lantiq/xway/pmu.c
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+
+#include <xway.h>
+
+#define LQ_PMU_PWDCR ((u32 *)(LQ_PMU_BASE_ADDR + 0x001C))
+#define LQ_PMU_PWDSR ((u32 *)(LQ_PMU_BASE_ADDR + 0x0020))
+
+void
+lq_pmu_enable(unsigned int module)
+{
+ int err = 1000000;
+
+ lq_w32(lq_r32(LQ_PMU_PWDCR) & ~module, LQ_PMU_PWDCR);
+ while (--err && (lq_r32(LQ_PMU_PWDSR) & module));
+
+ if (!err)
+ panic("activating PMU module failed!");
+}
+EXPORT_SYMBOL(lq_pmu_enable);
+
+void
+lq_pmu_disable(unsigned int module)
+{
+ lq_w32(lq_r32(LQ_PMU_PWDCR) | module, LQ_PMU_PWDCR);
+}
+EXPORT_SYMBOL(lq_pmu_disable);
--- /dev/null
+++ b/arch/mips/lantiq/xway/timer.c
@@ -0,0 +1,828 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/init.h>
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+
+#include <asm/irq.h>
+#include <asm/div64.h>
+
+#include <xway.h>
+#include <xway_irq.h>
+#include <lantiq_timer.h>
+
+#define MAX_NUM_OF_32BIT_TIMER_BLOCKS 6
+
+#ifdef TIMER1A
+#define FIRST_TIMER TIMER1A
+#else
+#define FIRST_TIMER 2
+#endif
+
+/*
+ * GPTC divider is set or not.
+ */
+#define GPTU_CLC_RMC_IS_SET 0
+
+/*
+ * Timer Interrupt (IRQ)
+ */
+/* Must be adjusted when ICU driver is available */
+#define TIMER_INTERRUPT (INT_NUM_IM3_IRL0 + 22)
+
+/*
+ * Bits Operation
+ */
+#define GET_BITS(x, msb, lsb) \
+ (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
+#define SET_BITS(x, msb, lsb, value) \
+ (((x) & ~(((1 << ((msb) + 1)) - 1) ^ ((1 << (lsb)) - 1))) | \
+ (((value) & ((1 << (1 + (msb) - (lsb))) - 1)) << (lsb)))
+
+/*
+ * GPTU Register Mapping
+ */
+#define LQ_GPTU (KSEG1 + 0x1E100A00)
+#define LQ_GPTU_CLC ((volatile u32 *)(LQ_GPTU + 0x0000))
+#define LQ_GPTU_ID ((volatile u32 *)(LQ_GPTU + 0x0008))
+#define LQ_GPTU_CON(n, X) ((volatile u32 *)(LQ_GPTU + 0x0010 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
+#define LQ_GPTU_RUN(n, X) ((volatile u32 *)(LQ_GPTU + 0x0018 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
+#define LQ_GPTU_RELOAD(n, X) ((volatile u32 *)(LQ_GPTU + 0x0020 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
+#define LQ_GPTU_COUNT(n, X) ((volatile u32 *)(LQ_GPTU + 0x0028 + ((X) * 4) + ((n) - 1) * 0x0020)) /* X must be either A or B */
+#define LQ_GPTU_IRNEN ((volatile u32 *)(LQ_GPTU + 0x00F4))
+#define LQ_GPTU_IRNICR ((volatile u32 *)(LQ_GPTU + 0x00F8))
+#define LQ_GPTU_IRNCR ((volatile u32 *)(LQ_GPTU + 0x00FC))
+
+/*
+ * Clock Control Register
+ */
+#define GPTU_CLC_SMC GET_BITS(*LQ_GPTU_CLC, 23, 16)
+#define GPTU_CLC_RMC GET_BITS(*LQ_GPTU_CLC, 15, 8)
+#define GPTU_CLC_FSOE (*LQ_GPTU_CLC & (1 << 5))
+#define GPTU_CLC_EDIS (*LQ_GPTU_CLC & (1 << 3))
+#define GPTU_CLC_SPEN (*LQ_GPTU_CLC & (1 << 2))
+#define GPTU_CLC_DISS (*LQ_GPTU_CLC & (1 << 1))
+#define GPTU_CLC_DISR (*LQ_GPTU_CLC & (1 << 0))
+
+#define GPTU_CLC_SMC_SET(value) SET_BITS(0, 23, 16, (value))
+#define GPTU_CLC_RMC_SET(value) SET_BITS(0, 15, 8, (value))
+#define GPTU_CLC_FSOE_SET(value) ((value) ? (1 << 5) : 0)
+#define GPTU_CLC_SBWE_SET(value) ((value) ? (1 << 4) : 0)
+#define GPTU_CLC_EDIS_SET(value) ((value) ? (1 << 3) : 0)
+#define GPTU_CLC_SPEN_SET(value) ((value) ? (1 << 2) : 0)
+#define GPTU_CLC_DISR_SET(value) ((value) ? (1 << 0) : 0)
+
+/*
+ * ID Register
+ */
+#define GPTU_ID_ID GET_BITS(*LQ_GPTU_ID, 15, 8)
+#define GPTU_ID_CFG GET_BITS(*LQ_GPTU_ID, 7, 5)
+#define GPTU_ID_REV GET_BITS(*LQ_GPTU_ID, 4, 0)
+
+/*
+ * Control Register of Timer/Counter nX
+ * n is the index of block (1 based index)
+ * X is either A or B
+ */
+#define GPTU_CON_SRC_EG(n, X) (*LQ_GPTU_CON(n, X) & (1 << 10))
+#define GPTU_CON_SRC_EXT(n, X) (*LQ_GPTU_CON(n, X) & (1 << 9))
+#define GPTU_CON_SYNC(n, X) (*LQ_GPTU_CON(n, X) & (1 << 8))
+#define GPTU_CON_EDGE(n, X) GET_BITS(*LQ_GPTU_CON(n, X), 7, 6)
+#define GPTU_CON_INV(n, X) (*LQ_GPTU_CON(n, X) & (1 << 5))
+#define GPTU_CON_EXT(n, X) (*LQ_GPTU_CON(n, A) & (1 << 4)) /* Timer/Counter B does not have this bit */
+#define GPTU_CON_STP(n, X) (*LQ_GPTU_CON(n, X) & (1 << 3))
+#define GPTU_CON_CNT(n, X) (*LQ_GPTU_CON(n, X) & (1 << 2))
+#define GPTU_CON_DIR(n, X) (*LQ_GPTU_CON(n, X) & (1 << 1))
+#define GPTU_CON_EN(n, X) (*LQ_GPTU_CON(n, X) & (1 << 0))
+
+#define GPTU_CON_SRC_EG_SET(value) ((value) ? 0 : (1 << 10))
+#define GPTU_CON_SRC_EXT_SET(value) ((value) ? (1 << 9) : 0)
+#define GPTU_CON_SYNC_SET(value) ((value) ? (1 << 8) : 0)
+#define GPTU_CON_EDGE_SET(value) SET_BITS(0, 7, 6, (value))
+#define GPTU_CON_INV_SET(value) ((value) ? (1 << 5) : 0)
+#define GPTU_CON_EXT_SET(value) ((value) ? (1 << 4) : 0)
+#define GPTU_CON_STP_SET(value) ((value) ? (1 << 3) : 0)
+#define GPTU_CON_CNT_SET(value) ((value) ? (1 << 2) : 0)
+#define GPTU_CON_DIR_SET(value) ((value) ? (1 << 1) : 0)
+
+#define GPTU_RUN_RL_SET(value) ((value) ? (1 << 2) : 0)
+#define GPTU_RUN_CEN_SET(value) ((value) ? (1 << 1) : 0)
+#define GPTU_RUN_SEN_SET(value) ((value) ? (1 << 0) : 0)
+
+#define GPTU_IRNEN_TC_SET(n, X, value) ((value) ? (1 << (((n) - 1) * 2 + (X))) : 0)
+#define GPTU_IRNCR_TC_SET(n, X, value) ((value) ? (1 << (((n) - 1) * 2 + (X))) : 0)
+
+#define TIMER_FLAG_MASK_SIZE(x) (x & 0x0001)
+#define TIMER_FLAG_MASK_TYPE(x) (x & 0x0002)
+#define TIMER_FLAG_MASK_STOP(x) (x & 0x0004)
+#define TIMER_FLAG_MASK_DIR(x) (x & 0x0008)
+#define TIMER_FLAG_NONE_EDGE 0x0000
+#define TIMER_FLAG_MASK_EDGE(x) (x & 0x0030)
+#define TIMER_FLAG_REAL 0x0000
+#define TIMER_FLAG_INVERT 0x0040
+#define TIMER_FLAG_MASK_INVERT(x) (x & 0x0040)
+#define TIMER_FLAG_MASK_TRIGGER(x) (x & 0x0070)
+#define TIMER_FLAG_MASK_SYNC(x) (x & 0x0080)
+#define TIMER_FLAG_CALLBACK_IN_HB 0x0200
+#define TIMER_FLAG_MASK_HANDLE(x) (x & 0x0300)
+#define TIMER_FLAG_MASK_SRC(x) (x & 0x1000)
+
+struct timer_dev_timer {
+ unsigned int f_irq_on;
+ unsigned int irq;
+ unsigned int flag;
+ unsigned long arg1;
+ unsigned long arg2;
+};
+
+struct timer_dev {
+ struct mutex gptu_mutex;
+ unsigned int number_of_timers;
+ unsigned int occupation;
+ unsigned int f_gptu_on;
+ struct timer_dev_timer timer[MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2];
+};
+
+static int gptu_ioctl(struct inode *, struct file *, unsigned int, unsigned long);
+static int gptu_open(struct inode *, struct file *);
+static int gptu_release(struct inode *, struct file *);
+
+static struct file_operations gptu_fops = {
+ .owner = THIS_MODULE,
+ .ioctl = gptu_ioctl,
+ .open = gptu_open,
+ .release = gptu_release
+};
+
+static struct miscdevice gptu_miscdev = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "gptu",
+ .fops = &gptu_fops,
+};
+
+static struct timer_dev timer_dev;
+
+static irqreturn_t timer_irq_handler(int irq, void *p)
+{
+ unsigned int timer;
+ unsigned int flag;
+ struct timer_dev_timer *dev_timer = (struct timer_dev_timer *)p;
+
+ timer = irq - TIMER_INTERRUPT;
+ if (timer < timer_dev.number_of_timers
+ && dev_timer == &timer_dev.timer[timer]) {
+ /* Clear interrupt. */
+ lq_w32(1 << timer, LQ_GPTU_IRNCR);
+
+ /* Call user hanler or signal. */
+ flag = dev_timer->flag;
+ if (!(timer & 0x01)
+ || TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT) {
+ /* 16-bit timer or timer A of 32-bit timer */
+ switch (TIMER_FLAG_MASK_HANDLE(flag)) {
+ case TIMER_FLAG_CALLBACK_IN_IRQ:
+ case TIMER_FLAG_CALLBACK_IN_HB:
+ if (dev_timer->arg1)
+ (*(timer_callback)dev_timer->arg1)(dev_timer->arg2);
+ break;
+ case TIMER_FLAG_SIGNAL:
+ send_sig((int)dev_timer->arg2, (struct task_struct *)dev_timer->arg1, 0);
+ break;
+ }
+ }
+ }
+ return IRQ_HANDLED;
+}
+
+static inline void lq_enable_gptu(void)
+{
+ lq_pmu_enable(PMU_GPT);
+
+ /* Set divider as 1, disable write protection for SPEN, enable module. */
+ *LQ_GPTU_CLC =
+ GPTU_CLC_SMC_SET(0x00) |
+ GPTU_CLC_RMC_SET(0x01) |
+ GPTU_CLC_FSOE_SET(0) |
+ GPTU_CLC_SBWE_SET(1) |
+ GPTU_CLC_EDIS_SET(0) |
+ GPTU_CLC_SPEN_SET(0) |
+ GPTU_CLC_DISR_SET(0);
+}
+
+static inline void lq_disable_gptu(void)
+{
+ lq_w32(0x00, LQ_GPTU_IRNEN);
+ lq_w32(0xfff, LQ_GPTU_IRNCR);
+
+ /* Set divider as 0, enable write protection for SPEN, disable module. */
+ *LQ_GPTU_CLC =
+ GPTU_CLC_SMC_SET(0x00) |
+ GPTU_CLC_RMC_SET(0x00) |
+ GPTU_CLC_FSOE_SET(0) |
+ GPTU_CLC_SBWE_SET(0) |
+ GPTU_CLC_EDIS_SET(0) |
+ GPTU_CLC_SPEN_SET(0) |
+ GPTU_CLC_DISR_SET(1);
+
+ lq_pmu_disable(PMU_GPT);
+}
+
+int lq_request_timer(unsigned int timer, unsigned int flag,
+ unsigned long value, unsigned long arg1, unsigned long arg2)
+{
+ int ret = 0;
+ unsigned int con_reg, irnen_reg;
+ int n, X;
+
+ if (timer >= FIRST_TIMER + timer_dev.number_of_timers)
+ return -EINVAL;
+
+ printk(KERN_INFO "request_timer(%d, 0x%08X, %lu)...",
+ timer, flag, value);
+
+ if (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT)
+ value &= 0xFFFF;
+ else
+ timer &= ~0x01;
+
+ mutex_lock(&timer_dev.gptu_mutex);
+
+ /*
+ * Allocate timer.
+ */
+ if (timer < FIRST_TIMER) {
+ unsigned int mask;
+ unsigned int shift;
+ /* This takes care of TIMER1B which is the only choice for Voice TAPI system */
+ unsigned int offset = TIMER2A;
+
+ /*
+ * Pick up a free timer.
+ */
+ if (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT) {
+ mask = 1 << offset;
+ shift = 1;
+ } else {
+ mask = 3 << offset;
+ shift = 2;
+ }
+ for (timer = offset;
+ timer < offset + timer_dev.number_of_timers;
+ timer += shift, mask <<= shift)
+ if (!(timer_dev.occupation & mask)) {
+ timer_dev.occupation |= mask;
+ break;
+ }
+ if (timer >= offset + timer_dev.number_of_timers) {
+ printk("failed![%d]\n", __LINE__);
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return -EINVAL;
+ } else
+ ret = timer;
+ } else {
+ register unsigned int mask;
+
+ /*
+ * Check if the requested timer is free.
+ */
+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
+ if ((timer_dev.occupation & mask)) {
+ printk("failed![%d] mask %#x, timer_dev.occupation %#x\n",
+ __LINE__, mask, timer_dev.occupation);
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return -EBUSY;
+ } else {
+ timer_dev.occupation |= mask;
+ ret = 0;
+ }
+ }
+
+ /*
+ * Prepare control register value.
+ */
+ switch (TIMER_FLAG_MASK_EDGE(flag)) {
+ default:
+ case TIMER_FLAG_NONE_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x00);
+ break;
+ case TIMER_FLAG_RISE_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x01);
+ break;
+ case TIMER_FLAG_FALL_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x02);
+ break;
+ case TIMER_FLAG_ANY_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x03);
+ break;
+ }
+ if (TIMER_FLAG_MASK_TYPE(flag) == TIMER_FLAG_TIMER)
+ con_reg |=
+ TIMER_FLAG_MASK_SRC(flag) ==
+ TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EXT_SET(1) :
+ GPTU_CON_SRC_EXT_SET(0);
+ else
+ con_reg |=
+ TIMER_FLAG_MASK_SRC(flag) ==
+ TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EG_SET(1) :
+ GPTU_CON_SRC_EG_SET(0);
+ con_reg |=
+ TIMER_FLAG_MASK_SYNC(flag) ==
+ TIMER_FLAG_UNSYNC ? GPTU_CON_SYNC_SET(0) :
+ GPTU_CON_SYNC_SET(1);
+ con_reg |=
+ TIMER_FLAG_MASK_INVERT(flag) ==
+ TIMER_FLAG_REAL ? GPTU_CON_INV_SET(0) : GPTU_CON_INV_SET(1);
+ con_reg |=
+ TIMER_FLAG_MASK_SIZE(flag) ==
+ TIMER_FLAG_16BIT ? GPTU_CON_EXT_SET(0) :
+ GPTU_CON_EXT_SET(1);
+ con_reg |=
+ TIMER_FLAG_MASK_STOP(flag) ==
+ TIMER_FLAG_ONCE ? GPTU_CON_STP_SET(1) : GPTU_CON_STP_SET(0);
+ con_reg |=
+ TIMER_FLAG_MASK_TYPE(flag) ==
+ TIMER_FLAG_TIMER ? GPTU_CON_CNT_SET(0) :
+ GPTU_CON_CNT_SET(1);
+ con_reg |=
+ TIMER_FLAG_MASK_DIR(flag) ==
+ TIMER_FLAG_UP ? GPTU_CON_DIR_SET(1) : GPTU_CON_DIR_SET(0);
+
+ /*
+ * Fill up running data.
+ */
+ timer_dev.timer[timer - FIRST_TIMER].flag = flag;
+ timer_dev.timer[timer - FIRST_TIMER].arg1 = arg1;
+ timer_dev.timer[timer - FIRST_TIMER].arg2 = arg2;
+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
+ timer_dev.timer[timer - FIRST_TIMER + 1].flag = flag;
+
+ /*
+ * Enable GPTU module.
+ */
+ if (!timer_dev.f_gptu_on) {
+ lq_enable_gptu();
+ timer_dev.f_gptu_on = 1;
+ }
+
+ /*
+ * Enable IRQ.
+ */
+ if (TIMER_FLAG_MASK_HANDLE(flag) != TIMER_FLAG_NO_HANDLE) {
+ if (TIMER_FLAG_MASK_HANDLE(flag) == TIMER_FLAG_SIGNAL)
+ timer_dev.timer[timer - FIRST_TIMER].arg1 =
+ (unsigned long) find_task_by_vpid((int) arg1);
+
+ irnen_reg = 1 << (timer - FIRST_TIMER);
+
+ if (TIMER_FLAG_MASK_HANDLE(flag) == TIMER_FLAG_SIGNAL
+ || (TIMER_FLAG_MASK_HANDLE(flag) ==
+ TIMER_FLAG_CALLBACK_IN_IRQ
+ && timer_dev.timer[timer - FIRST_TIMER].arg1)) {
+ enable_irq(timer_dev.timer[timer - FIRST_TIMER].irq);
+ timer_dev.timer[timer - FIRST_TIMER].f_irq_on = 1;
+ }
+ } else
+ irnen_reg = 0;
+
+ /*
+ * Write config register, reload value and enable interrupt.
+ */
+ n = timer >> 1;
+ X = timer & 0x01;
+ *LQ_GPTU_CON(n, X) = con_reg;
+ *LQ_GPTU_RELOAD(n, X) = value;
+ /* printk("reload value = %d\n", (u32)value); */
+ *LQ_GPTU_IRNEN |= irnen_reg;
+
+ mutex_unlock(&timer_dev.gptu_mutex);
+ printk("successful!\n");
+ return ret;
+}
+EXPORT_SYMBOL(lq_request_timer);
+
+int lq_free_timer(unsigned int timer)
+{
+ unsigned int flag;
+ unsigned int mask;
+ int n, X;
+
+ if (!timer_dev.f_gptu_on)
+ return -EINVAL;
+
+ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
+ return -EINVAL;
+
+ mutex_lock(&timer_dev.gptu_mutex);
+
+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
+ timer &= ~0x01;
+
+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
+ if (((timer_dev.occupation & mask) ^ mask)) {
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return -EINVAL;
+ }
+
+ n = timer >> 1;
+ X = timer & 0x01;
+
+ if (GPTU_CON_EN(n, X))
+ *LQ_GPTU_RUN(n, X) = GPTU_RUN_CEN_SET(1);
+
+ *LQ_GPTU_IRNEN &= ~GPTU_IRNEN_TC_SET(n, X, 1);
+ *LQ_GPTU_IRNCR |= GPTU_IRNCR_TC_SET(n, X, 1);
+
+ if (timer_dev.timer[timer - FIRST_TIMER].f_irq_on) {
+ disable_irq(timer_dev.timer[timer - FIRST_TIMER].irq);
+ timer_dev.timer[timer - FIRST_TIMER].f_irq_on = 0;
+ }
+
+ timer_dev.occupation &= ~mask;
+ if (!timer_dev.occupation && timer_dev.f_gptu_on) {
+ lq_disable_gptu();
+ timer_dev.f_gptu_on = 0;
+ }
+
+ mutex_unlock(&timer_dev.gptu_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(lq_free_timer);
+
+int lq_start_timer(unsigned int timer, int is_resume)
+{
+ unsigned int flag;
+ unsigned int mask;
+ int n, X;
+
+ if (!timer_dev.f_gptu_on)
+ return -EINVAL;
+
+ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
+ return -EINVAL;
+
+ mutex_lock(&timer_dev.gptu_mutex);
+
+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
+ timer &= ~0x01;
+
+ mask = (TIMER_FLAG_MASK_SIZE(flag) ==
+ TIMER_FLAG_16BIT ? 1 : 3) << timer;
+ if (((timer_dev.occupation & mask) ^ mask)) {
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return -EINVAL;
+ }
+
+ n = timer >> 1;
+ X = timer & 0x01;
+
+ *LQ_GPTU_RUN(n, X) = GPTU_RUN_RL_SET(!is_resume) | GPTU_RUN_SEN_SET(1);
+
+ mutex_unlock(&timer_dev.gptu_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(lq_start_timer);
+
+int lq_stop_timer(unsigned int timer)
+{
+ unsigned int flag;
+ unsigned int mask;
+ int n, X;
+
+ if (!timer_dev.f_gptu_on)
+ return -EINVAL;
+
+ if (timer < FIRST_TIMER
+ || timer >= FIRST_TIMER + timer_dev.number_of_timers)
+ return -EINVAL;
+
+ mutex_lock(&timer_dev.gptu_mutex);
+
+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
+ timer &= ~0x01;
+
+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
+ if (((timer_dev.occupation & mask) ^ mask)) {
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return -EINVAL;
+ }
+
+ n = timer >> 1;
+ X = timer & 0x01;
+
+ *LQ_GPTU_RUN(n, X) = GPTU_RUN_CEN_SET(1);
+
+ mutex_unlock(&timer_dev.gptu_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(lq_stop_timer);
+
+int lq_reset_counter_flags(u32 timer, u32 flags)
+{
+ unsigned int oflag;
+ unsigned int mask, con_reg;
+ int n, X;
+
+ if (!timer_dev.f_gptu_on)
+ return -EINVAL;
+
+ if (timer < FIRST_TIMER || timer >= FIRST_TIMER + timer_dev.number_of_timers)
+ return -EINVAL;
+
+ mutex_lock(&timer_dev.gptu_mutex);
+
+ oflag = timer_dev.timer[timer - FIRST_TIMER].flag;
+ if (TIMER_FLAG_MASK_SIZE(oflag) != TIMER_FLAG_16BIT)
+ timer &= ~0x01;
+
+ mask = (TIMER_FLAG_MASK_SIZE(oflag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
+ if (((timer_dev.occupation & mask) ^ mask)) {
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return -EINVAL;
+ }
+
+ switch (TIMER_FLAG_MASK_EDGE(flags)) {
+ default:
+ case TIMER_FLAG_NONE_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x00);
+ break;
+ case TIMER_FLAG_RISE_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x01);
+ break;
+ case TIMER_FLAG_FALL_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x02);
+ break;
+ case TIMER_FLAG_ANY_EDGE:
+ con_reg = GPTU_CON_EDGE_SET(0x03);
+ break;
+ }
+ if (TIMER_FLAG_MASK_TYPE(flags) == TIMER_FLAG_TIMER)
+ con_reg |= TIMER_FLAG_MASK_SRC(flags) == TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EXT_SET(1) : GPTU_CON_SRC_EXT_SET(0);
+ else
+ con_reg |= TIMER_FLAG_MASK_SRC(flags) == TIMER_FLAG_EXT_SRC ? GPTU_CON_SRC_EG_SET(1) : GPTU_CON_SRC_EG_SET(0);
+ con_reg |= TIMER_FLAG_MASK_SYNC(flags) == TIMER_FLAG_UNSYNC ? GPTU_CON_SYNC_SET(0) : GPTU_CON_SYNC_SET(1);
+ con_reg |= TIMER_FLAG_MASK_INVERT(flags) == TIMER_FLAG_REAL ? GPTU_CON_INV_SET(0) : GPTU_CON_INV_SET(1);
+ con_reg |= TIMER_FLAG_MASK_SIZE(flags) == TIMER_FLAG_16BIT ? GPTU_CON_EXT_SET(0) : GPTU_CON_EXT_SET(1);
+ con_reg |= TIMER_FLAG_MASK_STOP(flags) == TIMER_FLAG_ONCE ? GPTU_CON_STP_SET(1) : GPTU_CON_STP_SET(0);
+ con_reg |= TIMER_FLAG_MASK_TYPE(flags) == TIMER_FLAG_TIMER ? GPTU_CON_CNT_SET(0) : GPTU_CON_CNT_SET(1);
+ con_reg |= TIMER_FLAG_MASK_DIR(flags) == TIMER_FLAG_UP ? GPTU_CON_DIR_SET(1) : GPTU_CON_DIR_SET(0);
+
+ timer_dev.timer[timer - FIRST_TIMER].flag = flags;
+ if (TIMER_FLAG_MASK_SIZE(flags) != TIMER_FLAG_16BIT)
+ timer_dev.timer[timer - FIRST_TIMER + 1].flag = flags;
+
+ n = timer >> 1;
+ X = timer & 0x01;
+
+ *LQ_GPTU_CON(n, X) = con_reg;
+ smp_wmb();
+ printk(KERN_INFO "[%s]: counter%d oflags %#x, nflags %#x, GPTU_CON %#x\n", __func__, timer, oflag, flags, *LQ_GPTU_CON(n, X));
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return 0;
+}
+EXPORT_SYMBOL(lq_reset_counter_flags);
+
+int lq_get_count_value(unsigned int timer, unsigned long *value)
+{
+ unsigned int flag;
+ unsigned int mask;
+ int n, X;
+
+ if (!timer_dev.f_gptu_on)
+ return -EINVAL;
+
+ if (timer < FIRST_TIMER
+ || timer >= FIRST_TIMER + timer_dev.number_of_timers)
+ return -EINVAL;
+
+ mutex_lock(&timer_dev.gptu_mutex);
+
+ flag = timer_dev.timer[timer - FIRST_TIMER].flag;
+ if (TIMER_FLAG_MASK_SIZE(flag) != TIMER_FLAG_16BIT)
+ timer &= ~0x01;
+
+ mask = (TIMER_FLAG_MASK_SIZE(flag) == TIMER_FLAG_16BIT ? 1 : 3) << timer;
+ if (((timer_dev.occupation & mask) ^ mask)) {
+ mutex_unlock(&timer_dev.gptu_mutex);
+ return -EINVAL;
+ }
+
+ n = timer >> 1;
+ X = timer & 0x01;
+
+ *value = *LQ_GPTU_COUNT(n, X);
+
+ mutex_unlock(&timer_dev.gptu_mutex);
+
+ return 0;
+}
+EXPORT_SYMBOL(lq_get_count_value);
+
+u32 lq_cal_divider(unsigned long freq)
+{
+ u64 module_freq, fpi = lq_get_fpi_bus_clock(2);
+ u32 clock_divider = 1;
+ module_freq = fpi * 1000;
+ do_div(module_freq, clock_divider * freq);
+ return module_freq;
+}
+EXPORT_SYMBOL(lq_cal_divider);
+
+int lq_set_timer(unsigned int timer, unsigned int freq, int is_cyclic,
+ int is_ext_src, unsigned int handle_flag, unsigned long arg1,
+ unsigned long arg2)
+{
+ unsigned long divider;
+ unsigned int flag;
+
+ divider = lq_cal_divider(freq);
+ if (divider == 0)
+ return -EINVAL;
+ flag = ((divider & ~0xFFFF) ? TIMER_FLAG_32BIT : TIMER_FLAG_16BIT)
+ | (is_cyclic ? TIMER_FLAG_CYCLIC : TIMER_FLAG_ONCE)
+ | (is_ext_src ? TIMER_FLAG_EXT_SRC : TIMER_FLAG_INT_SRC)
+ | TIMER_FLAG_TIMER | TIMER_FLAG_DOWN
+ | TIMER_FLAG_MASK_HANDLE(handle_flag);
+
+ printk(KERN_INFO "lq_set_timer(%d, %d), divider = %lu\n",
+ timer, freq, divider);
+ return lq_request_timer(timer, flag, divider, arg1, arg2);
+}
+EXPORT_SYMBOL(lq_set_timer);
+
+int lq_set_counter(unsigned int timer, unsigned int flag, u32 reload,
+ unsigned long arg1, unsigned long arg2)
+{
+ printk(KERN_INFO "lq_set_counter(%d, %#x, %d)\n", timer, flag, reload);
+ return lq_request_timer(timer, flag, reload, arg1, arg2);
+}
+EXPORT_SYMBOL(lq_set_counter);
+
+static int gptu_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ int ret;
+ struct gptu_ioctl_param param;
+
+ if (!access_ok(VERIFY_READ, arg, sizeof(struct gptu_ioctl_param)))
+ return -EFAULT;
+ copy_from_user(&param, (void *) arg, sizeof(param));
+
+ if ((((cmd == GPTU_REQUEST_TIMER || cmd == GPTU_SET_TIMER
+ || GPTU_SET_COUNTER) && param.timer < 2)
+ || cmd == GPTU_GET_COUNT_VALUE || cmd == GPTU_CALCULATE_DIVIDER)
+ && !access_ok(VERIFY_WRITE, arg,
+ sizeof(struct gptu_ioctl_param)))
+ return -EFAULT;
+
+ switch (cmd) {
+ case GPTU_REQUEST_TIMER:
+ ret = lq_request_timer(param.timer, param.flag, param.value,
+ (unsigned long) param.pid,
+ (unsigned long) param.sig);
+ if (ret > 0) {
+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
+ timer, &ret, sizeof(&ret));
+ ret = 0;
+ }
+ break;
+ case GPTU_FREE_TIMER:
+ ret = lq_free_timer(param.timer);
+ break;
+ case GPTU_START_TIMER:
+ ret = lq_start_timer(param.timer, param.flag);
+ break;
+ case GPTU_STOP_TIMER:
+ ret = lq_stop_timer(param.timer);
+ break;
+ case GPTU_GET_COUNT_VALUE:
+ ret = lq_get_count_value(param.timer, &param.value);
+ if (!ret)
+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
+ value, &param.value,
+ sizeof(param.value));
+ break;
+ case GPTU_CALCULATE_DIVIDER:
+ param.value = lq_cal_divider(param.value);
+ if (param.value == 0)
+ ret = -EINVAL;
+ else {
+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
+ value, &param.value,
+ sizeof(param.value));
+ ret = 0;
+ }
+ break;
+ case GPTU_SET_TIMER:
+ ret = lq_set_timer(param.timer, param.value,
+ TIMER_FLAG_MASK_STOP(param.flag) !=
+ TIMER_FLAG_ONCE ? 1 : 0,
+ TIMER_FLAG_MASK_SRC(param.flag) ==
+ TIMER_FLAG_EXT_SRC ? 1 : 0,
+ TIMER_FLAG_MASK_HANDLE(param.flag) ==
+ TIMER_FLAG_SIGNAL ? TIMER_FLAG_SIGNAL :
+ TIMER_FLAG_NO_HANDLE,
+ (unsigned long) param.pid,
+ (unsigned long) param.sig);
+ if (ret > 0) {
+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
+ timer, &ret, sizeof(&ret));
+ ret = 0;
+ }
+ break;
+ case GPTU_SET_COUNTER:
+ lq_set_counter(param.timer, param.flag, param.value, 0, 0);
+ if (ret > 0) {
+ copy_to_user(&((struct gptu_ioctl_param *) arg)->
+ timer, &ret, sizeof(&ret));
+ ret = 0;
+ }
+ break;
+ default:
+ ret = -ENOTTY;
+ }
+
+ return ret;
+}
+
+static int gptu_open(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+static int gptu_release(struct inode *inode, struct file *file)
+{
+ return 0;
+}
+
+int __init lq_gptu_init(void)
+{
+ int ret;
+ unsigned int i;
+
+ lq_w32(0, LQ_GPTU_IRNEN);
+ lq_w32(0xfff, LQ_GPTU_IRNCR);
+
+ memset(&timer_dev, 0, sizeof(timer_dev));
+ mutex_init(&timer_dev.gptu_mutex);
+
+ lq_enable_gptu();
+ timer_dev.number_of_timers = GPTU_ID_CFG * 2;
+ lq_disable_gptu();
+ if (timer_dev.number_of_timers > MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2)
+ timer_dev.number_of_timers = MAX_NUM_OF_32BIT_TIMER_BLOCKS * 2;
+ printk(KERN_INFO "gptu: totally %d 16-bit timers/counters\n", timer_dev.number_of_timers);
+
+ ret = misc_register(&gptu_miscdev);
+ if (ret) {
+ printk(KERN_ERR "gptu: can't misc_register, get error %d\n", -ret);
+ return ret;
+ } else {
+ printk(KERN_INFO "gptu: misc_register on minor %d\n", gptu_miscdev.minor);
+ }
+
+ for (i = 0; i < timer_dev.number_of_timers; i++) {
+ ret = request_irq(TIMER_INTERRUPT + i, timer_irq_handler, IRQF_TIMER, gptu_miscdev.name, &timer_dev.timer[i]);
+ if (ret) {
+ for (; i >= 0; i--)
+ free_irq(TIMER_INTERRUPT + i, &timer_dev.timer[i]);
+ misc_deregister(&gptu_miscdev);
+ printk(KERN_ERR "gptu: failed in requesting irq (%d), get error %d\n", i, -ret);
+ return ret;
+ } else {
+ timer_dev.timer[i].irq = TIMER_INTERRUPT + i;
+ disable_irq(timer_dev.timer[i].irq);
+ printk(KERN_INFO "gptu: succeeded to request irq %d\n", timer_dev.timer[i].irq);
+ }
+ }
+
+ return 0;
+}
+
+void __exit lq_gptu_exit(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < timer_dev.number_of_timers; i++) {
+ if (timer_dev.timer[i].f_irq_on)
+ disable_irq(timer_dev.timer[i].irq);
+ free_irq(timer_dev.timer[i].irq, &timer_dev.timer[i]);
+ }
+ lq_disable_gptu();
+ misc_deregister(&gptu_miscdev);
+}
+
+module_init(lq_gptu_init);
+module_exit(lq_gptu_exit);
--- /dev/null
+++ b/arch/mips/lantiq/xway/timer.h
@@ -0,0 +1,155 @@
+#ifndef __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
+#define __DANUBE_GPTU_DEV_H__2005_07_26__10_19__
+
+
+/******************************************************************************
+ Copyright (c) 2002, Infineon Technologies. All rights reserved.
+
+ No Warranty
+ Because the program is licensed free of charge, there is no warranty for
+ the program, to the extent permitted by applicable law. Except when
+ otherwise stated in writing the copyright holders and/or other parties
+ provide the program "as is" without warranty of any kind, either
+ expressed or implied, including, but not limited to, the implied
+ warranties of merchantability and fitness for a particular purpose. The
+ entire risk as to the quality and performance of the program is with
+ you. should the program prove defective, you assume the cost of all
+ necessary servicing, repair or correction.
+
+ In no event unless required by applicable law or agreed to in writing
+ will any copyright holder, or any other party who may modify and/or
+ redistribute the program as permitted above, be liable to you for
+ damages, including any general, special, incidental or consequential
+ damages arising out of the use or inability to use the program
+ (including but not limited to loss of data or data being rendered
+ inaccurate or losses sustained by you or third parties or a failure of
+ the program to operate with any other programs), even if such holder or
+ other party has been advised of the possibility of such damages.
+******************************************************************************/
+
+
+/*
+ * ####################################
+ * Definition
+ * ####################################
+ */
+
+/*
+ * Available Timer/Counter Index
+ */
+#define TIMER(n, X) (n * 2 + (X ? 1 : 0))
+#define TIMER_ANY 0x00
+#define TIMER1A TIMER(1, 0)
+#define TIMER1B TIMER(1, 1)
+#define TIMER2A TIMER(2, 0)
+#define TIMER2B TIMER(2, 1)
+#define TIMER3A TIMER(3, 0)
+#define TIMER3B TIMER(3, 1)
+
+/*
+ * Flag of Timer/Counter
+ * These flags specify the way in which timer is configured.
+ */
+/* Bit size of timer/counter. */
+#define TIMER_FLAG_16BIT 0x0000
+#define TIMER_FLAG_32BIT 0x0001
+/* Switch between timer and counter. */
+#define TIMER_FLAG_TIMER 0x0000
+#define TIMER_FLAG_COUNTER 0x0002
+/* Stop or continue when overflowing/underflowing. */
+#define TIMER_FLAG_ONCE 0x0000
+#define TIMER_FLAG_CYCLIC 0x0004
+/* Count up or counter down. */
+#define TIMER_FLAG_UP 0x0000
+#define TIMER_FLAG_DOWN 0x0008
+/* Count on specific level or edge. */
+#define TIMER_FLAG_HIGH_LEVEL_SENSITIVE 0x0000
+#define TIMER_FLAG_LOW_LEVEL_SENSITIVE 0x0040
+#define TIMER_FLAG_RISE_EDGE 0x0010
+#define TIMER_FLAG_FALL_EDGE 0x0020
+#define TIMER_FLAG_ANY_EDGE 0x0030
+/* Signal is syncronous to module clock or not. */
+#define TIMER_FLAG_UNSYNC 0x0000
+#define TIMER_FLAG_SYNC 0x0080
+/* Different interrupt handle type. */
+#define TIMER_FLAG_NO_HANDLE 0x0000
+#if defined(__KERNEL__)
+ #define TIMER_FLAG_CALLBACK_IN_IRQ 0x0100
+#endif // defined(__KERNEL__)
+#define TIMER_FLAG_SIGNAL 0x0300
+/* Internal clock source or external clock source */
+#define TIMER_FLAG_INT_SRC 0x0000
+#define TIMER_FLAG_EXT_SRC 0x1000
+
+
+/*
+ * ioctl Command
+ */
+#define GPTU_REQUEST_TIMER 0x01 /* General method to setup timer/counter. */
+#define GPTU_FREE_TIMER 0x02 /* Free timer/counter. */
+#define GPTU_START_TIMER 0x03 /* Start or resume timer/counter. */
+#define GPTU_STOP_TIMER 0x04 /* Suspend timer/counter. */
+#define GPTU_GET_COUNT_VALUE 0x05 /* Get current count value. */
+#define GPTU_CALCULATE_DIVIDER 0x06 /* Calculate timer divider from given freq.*/
+#define GPTU_SET_TIMER 0x07 /* Simplified method to setup timer. */
+#define GPTU_SET_COUNTER 0x08 /* Simplified method to setup counter. */
+
+/*
+ * Data Type Used to Call ioctl
+ */
+struct gptu_ioctl_param {
+ unsigned int timer; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
+ * GPTU_SET_COUNTER, this field is ID of expected *
+ * timer/counter. If it's zero, a timer/counter would *
+ * be dynamically allocated and ID would be stored in *
+ * this field. *
+ * In command GPTU_GET_COUNT_VALUE, this field is *
+ * ignored. *
+ * In other command, this field is ID of timer/counter *
+ * allocated. */
+ unsigned int flag; /* In command GPTU_REQUEST_TIMER, GPTU_SET_TIMER, and *
+ * GPTU_SET_COUNTER, this field contains flags to *
+ * specify how to configure timer/counter. *
+ * In command GPTU_START_TIMER, zero indicate start *
+ * and non-zero indicate resume timer/counter. *
+ * In other command, this field is ignored. */
+ unsigned long value; /* In command GPTU_REQUEST_TIMER, this field contains *
+ * init/reload value. *
+ * In command GPTU_SET_TIMER, this field contains *
+ * frequency (0.001Hz) of timer. *
+ * In command GPTU_GET_COUNT_VALUE, current count *
+ * value would be stored in this field. *
+ * In command GPTU_CALCULATE_DIVIDER, this field *
+ * contains frequency wanted, and after calculation, *
+ * divider would be stored in this field to overwrite *
+ * the frequency. *
+ * In other command, this field is ignored. */
+ int pid; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
+ * if signal is required, this field contains process *
+ * ID to which signal would be sent. *
+ * In other command, this field is ignored. */
+ int sig; /* In command GPTU_REQUEST_TIMER and GPTU_SET_TIMER, *
+ * if signal is required, this field contains signal *
+ * number which would be sent. *
+ * In other command, this field is ignored. */
+};
+
+/*
+ * ####################################
+ * Data Type
+ * ####################################
+ */
+typedef void (*timer_callback)(unsigned long arg);
+
+extern int ifxmips_request_timer(unsigned int, unsigned int, unsigned long, unsigned long, unsigned long);
+extern int ifxmips_free_timer(unsigned int);
+extern int ifxmips_start_timer(unsigned int, int);
+extern int ifxmips_stop_timer(unsigned int);
+extern int ifxmips_reset_counter_flags(u32 timer, u32 flags);
+extern int ifxmips_get_count_value(unsigned int, unsigned long *);
+extern u32 ifxmips_cal_divider(unsigned long);
+extern int ifxmips_set_timer(unsigned int, unsigned int, int, int, unsigned int, unsigned long, unsigned long);
+extern int ifxmips_set_counter(unsigned int timer, unsigned int flag,
+ u32 reload, unsigned long arg1, unsigned long arg2);
+
+#endif /* __DANUBE_GPTU_DEV_H__2005_07_26__10_19__ */
--- /dev/null
+++ b/arch/mips/lantiq/xway/Makefile
@@ -0,0 +1,5 @@
+obj-y := pmu.o prom.o dma.o timer.o reset.o clk-xway.o
+obj-y += gpio.o gpio_ebu.o gpio_leds.o devices.o
+obj-$(CONFIG_LANTIQ_MACH_EASY50812) += mach-easy50812.o
+obj-$(CONFIG_LANTIQ_MACH_EASY50712) += mach-easy50712.o
+obj-$(CONFIG_LANTIQ_MACH_EASY4010) += mach-easy4010.o
--- /dev/null
+++ b/arch/mips/lantiq/xway/clk-xway.c
@@ -0,0 +1,219 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2007 Xu Liang, infineon
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+
+#include <asm/time.h>
+#include <asm/irq.h>
+#include <asm/div64.h>
+
+#include <xway.h>
+
+static unsigned int lq_ram_clocks[] = {CLOCK_167M, CLOCK_133M, CLOCK_111M, CLOCK_83M };
+#define DDR_HZ lq_ram_clocks[lq_r32(LQ_CGU_SYS) & 0x3]
+
+#define BASIC_FREQUENCY_1 35328000
+#define BASIC_FREQUENCY_2 36000000
+#define BASIS_REQUENCY_USB 12000000
+
+#define GET_BITS(x, msb, lsb) (((x) & ((1 << ((msb) + 1)) - 1)) >> (lsb))
+
+#define CGU_PLL0_PHASE_DIVIDER_ENABLE (lq_r32(LQ_CGU_PLL0_CFG) & (1 << 31))
+#define CGU_PLL0_BYPASS (lq_r32(LQ_CGU_PLL0_CFG) & (1 << 30))
+#define CGU_PLL0_CFG_DSMSEL (lq_r32(LQ_CGU_PLL0_CFG) & (1 << 28))
+#define CGU_PLL0_CFG_FRAC_EN (lq_r32(LQ_CGU_PLL0_CFG) & (1 << 27))
+#define CGU_PLL1_SRC (lq_r32(LQ_CGU_PLL1_CFG) & (1 << 31))
+#define CGU_PLL2_PHASE_DIVIDER_ENABLE (lq_r32(LQ_CGU_PLL2_CFG) & (1 << 20))
+#define CGU_SYS_FPI_SEL (1 << 6)
+#define CGU_SYS_DDR_SEL 0x3
+#define CGU_PLL0_SRC (1 << 29)
+
+#define CGU_PLL0_CFG_PLLK GET_BITS(*LQ_CGU_PLL0_CFG, 26, 17)
+#define CGU_PLL0_CFG_PLLN GET_BITS(*LQ_CGU_PLL0_CFG, 12, 6)
+#define CGU_PLL0_CFG_PLLM GET_BITS(*LQ_CGU_PLL0_CFG, 5, 2)
+#define CGU_PLL2_SRC GET_BITS(*LQ_CGU_PLL2_CFG, 18, 17)
+#define CGU_PLL2_CFG_INPUT_DIV GET_BITS(*LQ_CGU_PLL2_CFG, 16, 13)
+
+#define LQ_GPTU_GPT_CLC ((u32 *)(LQ_GPTU_BASE_ADDR + 0x0000))
+#define LQ_CGU_PLL0_CFG ((u32 *)(LQ_CGU_BASE_ADDR + 0x0004))
+#define LQ_CGU_PLL1_CFG ((u32 *)(LQ_CGU_BASE_ADDR + 0x0008))
+#define LQ_CGU_PLL2_CFG ((u32 *)(LQ_CGU_BASE_ADDR + 0x000C))
+#define LQ_CGU_SYS ((u32 *)(LQ_CGU_BASE_ADDR + 0x0010))
+#define LQ_CGU_UPDATE ((u32 *)(LQ_CGU_BASE_ADDR + 0x0014))
+#define LQ_CGU_IF_CLK ((u32 *)(LQ_CGU_BASE_ADDR + 0x0018))
+#define LQ_CGU_OSC_CON ((u32 *)(LQ_CGU_BASE_ADDR + 0x001C))
+#define LQ_CGU_SMD ((u32 *)(LQ_CGU_BASE_ADDR + 0x0020))
+#define LQ_CGU_CT1SR ((u32 *)(LQ_CGU_BASE_ADDR + 0x0028))
+#define LQ_CGU_CT2SR ((u32 *)(LQ_CGU_BASE_ADDR + 0x002C))
+#define LQ_CGU_PCMCR ((u32 *)(LQ_CGU_BASE_ADDR + 0x0030))
+#define LQ_CGU_PCI_CR ((u32 *)(LQ_CGU_BASE_ADDR + 0x0034))
+#define LQ_CGU_PD_PC ((u32 *)(LQ_CGU_BASE_ADDR + 0x0038))
+#define LQ_CGU_FMR ((u32 *)(LQ_CGU_BASE_ADDR + 0x003C))
+
+static unsigned int lq_get_pll0_fdiv(void);
+
+static inline unsigned int
+get_input_clock(int pll)
+{
+ switch (pll) {
+ case 0:
+ if (lq_r32(LQ_CGU_PLL0_CFG) & CGU_PLL0_SRC)
+ return BASIS_REQUENCY_USB;
+ else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
+ return BASIC_FREQUENCY_1;
+ else
+ return BASIC_FREQUENCY_2;
+ case 1:
+ if (CGU_PLL1_SRC)
+ return BASIS_REQUENCY_USB;
+ else if (CGU_PLL0_PHASE_DIVIDER_ENABLE)
+ return BASIC_FREQUENCY_1;
+ else
+ return BASIC_FREQUENCY_2;
+ case 2:
+ switch (CGU_PLL2_SRC) {
+ case 0:
+ return lq_get_pll0_fdiv();
+ case 1:
+ return CGU_PLL2_PHASE_DIVIDER_ENABLE ?
+ BASIC_FREQUENCY_1 :
+ BASIC_FREQUENCY_2;
+ case 2:
+ return BASIS_REQUENCY_USB;
+ }
+ default:
+ return 0;
+ }
+}
+
+static inline unsigned int
+cal_dsm(int pll, unsigned int num, unsigned int den)
+{
+ u64 res, clock = get_input_clock(pll);
+ res = num * clock;
+ do_div(res, den);
+ return res;
+}
+
+static inline unsigned int
+mash_dsm(int pll, unsigned int M, unsigned int N, unsigned int K)
+{
+ unsigned int num = ((N + 1) << 10) + K;
+ unsigned int den = (M + 1) << 10;
+ return cal_dsm(pll, num, den);
+}
+
+static inline unsigned int
+ssff_dsm_1(int pll, unsigned int M, unsigned int N, unsigned int K)
+{
+ unsigned int num = ((N + 1) << 11) + K + 512;
+ unsigned int den = (M + 1) << 11;
+ return cal_dsm(pll, num, den);
+}
+
+static inline unsigned int
+ssff_dsm_2(int pll, unsigned int M, unsigned int N, unsigned int K)
+{
+ unsigned int num = K >= 512 ?
+ ((N + 1) << 12) + K - 512 : ((N + 1) << 12) + K + 3584;
+ unsigned int den = (M + 1) << 12;
+ return cal_dsm(pll, num, den);
+}
+
+static inline unsigned int
+dsm(int pll, unsigned int M, unsigned int N, unsigned int K,
+ unsigned int dsmsel, unsigned int phase_div_en)
+{
+ if (!dsmsel)
+ return mash_dsm(pll, M, N, K);
+ else if (!phase_div_en)
+ return mash_dsm(pll, M, N, K);
+ else
+ return ssff_dsm_2(pll, M, N, K);
+}
+
+static inline unsigned int
+lq_get_pll0_fosc(void)
+{
+ if (CGU_PLL0_BYPASS)
+ return get_input_clock(0);
+ else
+ return !CGU_PLL0_CFG_FRAC_EN
+ ? dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN, 0, CGU_PLL0_CFG_DSMSEL,
+ CGU_PLL0_PHASE_DIVIDER_ENABLE)
+ : dsm(0, CGU_PLL0_CFG_PLLM, CGU_PLL0_CFG_PLLN, CGU_PLL0_CFG_PLLK,
+ CGU_PLL0_CFG_DSMSEL, CGU_PLL0_PHASE_DIVIDER_ENABLE);
+}
+
+static unsigned int
+lq_get_pll0_fdiv(void)
+{
+ unsigned int div = CGU_PLL2_CFG_INPUT_DIV + 1;
+ return (lq_get_pll0_fosc() + (div >> 1)) / div;
+}
+
+unsigned int
+lq_get_io_region_clock(void)
+{
+ unsigned int ret = lq_get_pll0_fosc();
+ switch (lq_r32(LQ_CGU_PLL2_CFG) & CGU_SYS_DDR_SEL) {
+ default:
+ case 0:
+ return (ret + 1) / 2;
+ case 1:
+ return (ret * 2 + 2) / 5;
+ case 2:
+ return (ret + 1) / 3;
+ case 3:
+ return (ret + 2) / 4;
+ }
+}
+EXPORT_SYMBOL(lq_get_io_region_clock);
+
+unsigned int
+lq_get_fpi_bus_clock(int fpi)
+{
+ unsigned int ret = lq_get_io_region_clock();
+ if ((fpi == 2) && (lq_r32(LQ_CGU_SYS) & CGU_SYS_FPI_SEL))
+ ret >>= 1;
+ return ret;
+}
+EXPORT_SYMBOL(lq_get_fpi_bus_clock);
+
+unsigned int
+lq_get_cpu_hz(void)
+{
+ switch (lq_r32(LQ_CGU_SYS) & 0xc)
+ {
+ case 0:
+ return CLOCK_333M;
+ case 4:
+ return DDR_HZ;
+ case 8:
+ return DDR_HZ << 1;
+ default:
+ return DDR_HZ >> 1;
+ }
+}
+EXPORT_SYMBOL(lq_get_cpu_hz);
+
+unsigned int
+lq_get_fpi_hz(void)
+{
+ unsigned int ddr_clock = DDR_HZ;
+ if (lq_r32(LQ_CGU_SYS) & 0x40)
+ return ddr_clock >> 1;
+ return ddr_clock;
+}
+EXPORT_SYMBOL(lq_get_fpi_hz);
+
+
--- /dev/null
+++ b/arch/mips/lantiq/xway/gpio.c
@@ -0,0 +1,203 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <lantiq.h>
+
+#define LQ_GPIO0_BASE_ADDR 0x1E100B10
+#define LQ_GPIO1_BASE_ADDR 0x1E100B40
+#define LQ_GPIO_SIZE 0x30
+
+#define LQ_GPIO_OUT 0x00
+#define LQ_GPIO_IN 0x04
+#define LQ_GPIO_DIR 0x08
+#define LQ_GPIO_ALTSEL0 0x0C
+#define LQ_GPIO_ALTSEL1 0x10
+#define LQ_GPIO_OD 0x14
+
+#define PINS_PER_PORT 16
+
+#define lq_gpio_getbit(m, r, p) !!(lq_r32(m + r) & (1 << p))
+#define lq_gpio_setbit(m, r, p) lq_w32_mask(0, (1 << p), m + r)
+#define lq_gpio_clearbit(m, r, p) lq_w32_mask((1 << p), 0, m + r)
+
+struct lq_gpio
+{
+ void __iomem *membase;
+ struct gpio_chip chip;
+};
+
+int
+gpio_to_irq(unsigned int gpio)
+{
+ return -EINVAL;
+}
+EXPORT_SYMBOL(gpio_to_irq);
+
+int
+lq_gpio_setconfig(unsigned int pin, unsigned int reg, unsigned int val)
+{
+ void __iomem *membase = (void*)KSEG1ADDR(LQ_GPIO0_BASE_ADDR);
+ if(pin >= (2 * PINS_PER_PORT))
+ return -EINVAL;
+ if(pin >= PINS_PER_PORT)
+ {
+ pin -= PINS_PER_PORT;
+ membase += LQ_GPIO_SIZE;
+ }
+ if(val)
+ lq_w32_mask(0, (1 << pin), membase + reg);
+ else
+ lq_w32_mask((1 << pin), 0, membase + reg);
+ return 0;
+}
+EXPORT_SYMBOL(lq_gpio_setconfig);
+
+int
+lq_gpio_request(unsigned int pin, unsigned int alt0,
+ unsigned int alt1, unsigned int dir, const char *name)
+{
+ void __iomem *membase = (void*)KSEG1ADDR(LQ_GPIO0_BASE_ADDR);
+ if(pin >= (2 * PINS_PER_PORT))
+ return -EINVAL;
+ if(gpio_request(pin, name))
+ {
+ printk("failed to register %s gpio\n", name);
+ return -EBUSY;
+ }
+ gpio_direction_output(pin, dir);
+ if(pin >= PINS_PER_PORT)
+ {
+ pin -= PINS_PER_PORT;
+ membase += LQ_GPIO_SIZE;
+ }
+ if(alt0)
+ lq_gpio_setbit(membase, LQ_GPIO_ALTSEL0, pin);
+ else
+ lq_gpio_clearbit(membase, LQ_GPIO_ALTSEL0, pin);
+ if(alt1)
+ lq_gpio_setbit(membase, LQ_GPIO_ALTSEL1, pin);
+ else
+ lq_gpio_clearbit(membase, LQ_GPIO_ALTSEL1, pin);
+ return 0;
+}
+EXPORT_SYMBOL(lq_gpio_request);
+
+static void
+lq_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
+{
+ struct lq_gpio *lq_gpio = container_of(chip, struct lq_gpio, chip);
+ if(value)
+ lq_gpio_setbit(lq_gpio->membase, LQ_GPIO_OUT, offset);
+ else
+ lq_gpio_clearbit(lq_gpio->membase, LQ_GPIO_OUT, offset);
+}
+
+static int
+lq_gpio_get(struct gpio_chip *chip, unsigned int offset)
+{
+ struct lq_gpio *lq_gpio = container_of(chip, struct lq_gpio, chip);
+ return lq_gpio_getbit(lq_gpio->membase, LQ_GPIO_IN, offset);
+}
+
+static int
+lq_gpio_direction_input(struct gpio_chip *chip, unsigned int offset)
+{
+ struct lq_gpio *lq_gpio = container_of(chip, struct lq_gpio, chip);
+ lq_gpio_clearbit(lq_gpio->membase, LQ_GPIO_OD, offset);
+ lq_gpio_clearbit(lq_gpio->membase, LQ_GPIO_DIR, offset);
+ return 0;
+}
+
+static int
+lq_gpio_direction_output(struct gpio_chip *chip, unsigned int offset, int value)
+{
+ struct lq_gpio *lq_gpio = container_of(chip, struct lq_gpio, chip);
+ lq_gpio_setbit(lq_gpio->membase, LQ_GPIO_OD, offset);
+ lq_gpio_setbit(lq_gpio->membase, LQ_GPIO_DIR, offset);
+ lq_gpio_set(chip, offset, value);
+ return 0;
+}
+
+static int
+lq_gpio_req(struct gpio_chip *chip, unsigned offset)
+{
+ struct lq_gpio *lq_gpio = container_of(chip, struct lq_gpio, chip);
+ lq_gpio_clearbit(lq_gpio->membase, LQ_GPIO_ALTSEL0, offset);
+ lq_gpio_clearbit(lq_gpio->membase, LQ_GPIO_ALTSEL1, offset);
+ return 0;
+}
+
+static int
+lq_gpio_probe(struct platform_device *pdev)
+{
+ struct lq_gpio *lq_gpio = kzalloc(sizeof(struct lq_gpio), GFP_KERNEL);
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ int ret = 0;
+ if(!res)
+ {
+ ret = -ENOENT;
+ goto err_free;
+ }
+ res = request_mem_region(res->start, resource_size(res),
+ dev_name(&pdev->dev));
+ if(!res)
+ {
+ ret = -EBUSY;
+ goto err_free;
+ }
+ lq_gpio->membase = ioremap_nocache(res->start, resource_size(res));
+ if(!lq_gpio->membase)
+ {
+ ret = -ENOMEM;
+ goto err_release_mem_region;
+ }
+ lq_gpio->chip.label = "lq_gpio";
+ lq_gpio->chip.direction_input = lq_gpio_direction_input;
+ lq_gpio->chip.direction_output = lq_gpio_direction_output;
+ lq_gpio->chip.get = lq_gpio_get;
+ lq_gpio->chip.set = lq_gpio_set;
+ lq_gpio->chip.request = lq_gpio_req;
+ lq_gpio->chip.base = PINS_PER_PORT * pdev->id;
+ lq_gpio->chip.ngpio = PINS_PER_PORT;
+ platform_set_drvdata(pdev, lq_gpio);
+ ret = gpiochip_add(&lq_gpio->chip);
+ if(!ret)
+ return 0;
+
+ iounmap(lq_gpio->membase);
+err_release_mem_region:
+ release_mem_region(res->start, resource_size(res));
+err_free:
+ kfree(lq_gpio);
+ return ret;
+}
+
+static struct platform_driver
+lq_gpio_driver = {
+ .probe = lq_gpio_probe,
+ .driver = {
+ .name = "lq_gpio",
+ .owner = THIS_MODULE,
+ },
+};
+
+int __init
+lq_gpio_init(void)
+{
+ int ret = platform_driver_register(&lq_gpio_driver);
+ if(ret)
+ printk(KERN_INFO "lq_gpio : Error registering platfom driver!");
+ return ret;
+}
+
+arch_initcall(lq_gpio_init);
--- /dev/null
+++ b/arch/mips/lantiq/xway/reset.c
@@ -0,0 +1,53 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/pm.h>
+#include <asm/reboot.h>
+
+#include <xway.h>
+
+#define LQ_RCU_RST ((u32 *)(LQ_RCU_BASE_ADDR + 0x0010))
+#define LQ_RCU_RST_ALL 0x40000000
+
+static void
+lq_machine_restart(char *command)
+{
+ printk(KERN_NOTICE "System restart\n");
+ local_irq_disable();
+ lq_w32(lq_r32(LQ_RCU_RST) | LQ_RCU_RST_ALL, LQ_RCU_RST);
+ for(;;);
+}
+
+static void
+lq_machine_halt(void)
+{
+ printk(KERN_NOTICE "System halted.\n");
+ local_irq_disable();
+ for(;;);
+}
+
+static void
+lq_machine_power_off(void)
+{
+ printk(KERN_NOTICE "Please turn off the power now.\n");
+ local_irq_disable();
+ for(;;);
+}
+
+static int __init
+mips_reboot_setup(void)
+{
+ _machine_restart = lq_machine_restart;
+ _machine_halt = lq_machine_halt;
+ pm_power_off = lq_machine_power_off;
+ return 0;
+}
+
+arch_initcall(mips_reboot_setup);
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