--- /dev/null
+/*
+ * GPR board platform device registration (Au1550)
+ *
+ * Copyright (C) 2010 Wolfgang Grandegger <wg@denx.de>
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+#include <asm/bootinfo.h>
+#include <asm/idle.h>
+#include <asm/reboot.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <prom.h>
+
+const char *get_system_type(void)
+{
+ return "GPR";
+}
+
+void __init prom_init(void)
+{
+ unsigned char *memsize_str;
+ unsigned long memsize;
+
+ prom_argc = fw_arg0;
+ prom_argv = (char **)fw_arg1;
+ prom_envp = (char **)fw_arg2;
+
+ prom_init_cmdline();
+
+ memsize_str = prom_getenv("memsize");
+ if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
+ memsize = 0x04000000;
+ add_memory_region(0, memsize, BOOT_MEM_RAM);
+}
+
+void prom_putchar(unsigned char c)
+{
+ alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+}
+
+static void gpr_reset(char *c)
+{
+ /* switch System-LED to orange (red# and green# on) */
+ alchemy_gpio_direction_output(4, 0);
+ alchemy_gpio_direction_output(5, 0);
+
+ /* trigger watchdog to reset board in 200ms */
+ printk(KERN_EMERG "Triggering watchdog soft reset...\n");
+ raw_local_irq_disable();
+ alchemy_gpio_direction_output(1, 0);
+ udelay(1);
+ alchemy_gpio_set_value(1, 1);
+ while (1)
+ cpu_wait();
+}
+
+static void gpr_power_off(void)
+{
+ while (1)
+ cpu_wait();
+}
+
+void __init board_setup(void)
+{
+ printk(KERN_INFO "Trapeze ITS GPR board\n");
+
+ pm_power_off = gpr_power_off;
+ _machine_halt = gpr_power_off;
+ _machine_restart = gpr_reset;
+
+ /* Enable UART1/3 */
+ alchemy_uart_enable(AU1000_UART3_PHYS_ADDR);
+ alchemy_uart_enable(AU1000_UART1_PHYS_ADDR);
+
+ /* Take away Reset of UMTS-card */
+ alchemy_gpio_direction_output(215, 1);
+}
+
+/*
+ * Watchdog
+ */
+static struct resource gpr_wdt_resource[] = {
+ [0] = {
+ .start = 1,
+ .end = 1,
+ .name = "gpr-adm6320-wdt",
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device gpr_wdt_device = {
+ .name = "adm6320-wdt",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(gpr_wdt_resource),
+ .resource = gpr_wdt_resource,
+};
+
+/*
+ * FLASH
+ *
+ * 0x00000000-0x00200000 : "kernel"
+ * 0x00200000-0x00a00000 : "rootfs"
+ * 0x01d00000-0x01f00000 : "config"
+ * 0x01c00000-0x01d00000 : "yamon"
+ * 0x01d00000-0x01d40000 : "yamon env vars"
+ * 0x00000000-0x00a00000 : "kernel+rootfs"
+ */
+static struct mtd_partition gpr_mtd_partitions[] = {
+ {
+ .name = "kernel",
+ .size = 0x00200000,
+ .offset = 0,
+ },
+ {
+ .name = "rootfs",
+ .size = 0x00800000,
+ .offset = MTDPART_OFS_APPEND,
+ .mask_flags = MTD_WRITEABLE,
+ },
+ {
+ .name = "config",
+ .size = 0x00200000,
+ .offset = 0x01d00000,
+ },
+ {
+ .name = "yamon",
+ .size = 0x00100000,
+ .offset = 0x01c00000,
+ },
+ {
+ .name = "yamon env vars",
+ .size = 0x00040000,
+ .offset = MTDPART_OFS_APPEND,
+ },
+ {
+ .name = "kernel+rootfs",
+ .size = 0x00a00000,
+ .offset = 0,
+ },
+};
+
+static struct physmap_flash_data gpr_flash_data = {
+ .width = 4,
+ .nr_parts = ARRAY_SIZE(gpr_mtd_partitions),
+ .parts = gpr_mtd_partitions,
+};
+
+static struct resource gpr_mtd_resource = {
+ .start = 0x1e000000,
+ .end = 0x1fffffff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct platform_device gpr_mtd_device = {
+ .name = "physmap-flash",
+ .dev = {
+ .platform_data = &gpr_flash_data,
+ },
+ .num_resources = 1,
+ .resource = &gpr_mtd_resource,
+};
+
+/*
+ * LEDs
+ */
+static struct gpio_led gpr_gpio_leds[] = {
+ { /* green */
+ .name = "gpr:green",
+ .gpio = 4,
+ .active_low = 1,
+ },
+ { /* red */
+ .name = "gpr:red",
+ .gpio = 5,
+ .active_low = 1,
+ }
+};
+
+static struct gpio_led_platform_data gpr_led_data = {
+ .num_leds = ARRAY_SIZE(gpr_gpio_leds),
+ .leds = gpr_gpio_leds,
+};
+
+static struct platform_device gpr_led_devices = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev = {
+ .platform_data = &gpr_led_data,
+ }
+};
+
+/*
+ * I2C
+ */
+static struct i2c_gpio_platform_data gpr_i2c_data = {
+ .sda_pin = 209,
+ .sda_is_open_drain = 1,
+ .scl_pin = 210,
+ .scl_is_open_drain = 1,
+ .udelay = 2, /* ~100 kHz */
+ .timeout = HZ,
+};
+
+static struct platform_device gpr_i2c_device = {
+ .name = "i2c-gpio",
+ .id = -1,
+ .dev.platform_data = &gpr_i2c_data,
+};
+
+static struct i2c_board_info gpr_i2c_info[] __initdata = {
+ {
+ I2C_BOARD_INFO("lm83", 0x18),
+ .type = "lm83"
+ }
+};
+
+
+
+static struct resource alchemy_pci_host_res[] = {
+ [0] = {
+ .start = AU1500_PCI_PHYS_ADDR,
+ .end = AU1500_PCI_PHYS_ADDR + 0xfff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static int gpr_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+ if ((slot == 0) && (pin == 1))
+ return AU1550_PCI_INTA;
+ else if ((slot == 0) && (pin == 2))
+ return AU1550_PCI_INTB;
+
+ return 0xff;
+}
+
+static struct alchemy_pci_platdata gpr_pci_pd = {
+ .board_map_irq = gpr_map_pci_irq,
+ .pci_cfg_set = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
+ PCI_CONFIG_CH |
+#if defined(__MIPSEB__)
+ PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
+#else
+ 0,
+#endif
+};
+
+static struct platform_device gpr_pci_host_dev = {
+ .dev.platform_data = &gpr_pci_pd,
+ .name = "alchemy-pci",
+ .id = 0,
+ .num_resources = ARRAY_SIZE(alchemy_pci_host_res),
+ .resource = alchemy_pci_host_res,
+};
+
+static struct platform_device *gpr_devices[] __initdata = {
+ &gpr_wdt_device,
+ &gpr_mtd_device,
+ &gpr_i2c_device,
+ &gpr_led_devices,
+};
+
+static int __init gpr_pci_init(void)
+{
+ return platform_device_register(&gpr_pci_host_dev);
+}
+/* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
+arch_initcall(gpr_pci_init);
+
+
+static int __init gpr_dev_init(void)
+{
+ i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));
+
+ return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
+}
+device_initcall(gpr_dev_init);
Code Review / kvmfornfv.git / blobdiff