1 files changed, 315 insertions, 0 deletions
diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c
new file mode 100644
index 000000000..387252337
--- /dev/null
+++ b/arch/mips/alchemy/board-gpr.c
@@ -0,0 +1,315 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * GPR board platform device registration (Au1550)
+ *
+ * Copyright (C) 2010 Wolfgang Grandegger <wg@denx.de>
+ */
+
+#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/i2c.h>
+#include <linux/platform_data/i2c-gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
+#include <linux/property.h>
+#include <asm/bootinfo.h>
+#include <asm/idle.h>
+#include <asm/reboot.h>
+#include <asm/setup.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
+#include <prom.h>
+
+const char *get_system_type(void)
+{
+	return "GPR";
+}
+
+void prom_putchar(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 const struct software_node gpr_gpio_leds_node = {
+	.name = "gpr-leds",
+};
+
+static const struct property_entry gpr_green_led_props[] = {
+	PROPERTY_ENTRY_GPIO("gpios", &alchemy_gpio1_node, 4, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node gpr_green_led_node = {
+	.name = "gpr:green",
+	.parent = &gpr_gpio_leds_node,
+	.properties = gpr_green_led_props,
+};
+
+static const struct property_entry gpr_red_led_props[] = {
+	PROPERTY_ENTRY_GPIO("gpios", &alchemy_gpio1_node, 5, GPIO_ACTIVE_LOW),
+	{ }
+};
+
+static const struct software_node gpr_red_led_node = {
+	.name = "gpr:red",
+	.parent = &gpr_gpio_leds_node,
+	.properties = gpr_red_led_props,
+};
+
+static const struct software_node * const gpr_gpio_leds_swnodes[] __initconst = {
+	&gpr_gpio_leds_node,
+	&gpr_green_led_node,
+	&gpr_red_led_node,
+	NULL
+};
+
+static void __init gpr_leds_init(void)
+{
+	const struct platform_device_info pdevinfo = {
+		.name	= "leds-gpio",
+		.id	= PLATFORM_DEVID_NONE,
+		.swnode = &gpr_gpio_leds_node,
+	};
+	struct platform_device *pd;
+	int err;
+
+	err = software_node_register_node_group(gpr_gpio_leds_swnodes);
+	if (err) {
+		pr_err("failed to register LED software nodes: %d\n", err);
+		return;
+	}
+
+	pd = platform_device_register_full(&pdevinfo);
+	err = PTR_ERR_OR_ZERO(pd);
+	if (err)
+		pr_err("failed to create LED device: %d\n", err);
+}
+
+/*
+ * I2C
+ */
+static const struct property_entry gpr_i2c_props[] __initconst = {
+	PROPERTY_ENTRY_GPIO("sda-gpios", &alchemy_gpio2_node, 9, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("scl-gpios", &alchemy_gpio2_node, 10, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_U32("i2c-gpio,delay-us", 2),	/* ~100 kHz */
+	PROPERTY_ENTRY_U32("i2c-gpio,timeout-ms", 1000),
+	PROPERTY_ENTRY_BOOL("i2c-gpio,sda-open-drain"),
+	PROPERTY_ENTRY_BOOL("i2c-gpio,scl-open-drain"),
+	{ }
+};
+
+static const struct platform_device_info gpr_i2c_pdev_info __initconst = {
+	.name		= "i2c-gpio",
+	.id		= PLATFORM_DEVID_NONE,
+	.properties	= gpr_i2c_props,
+};
+
+static void __init gpr_i2c_init(void)
+{
+	struct platform_device *pd;
+	int err;
+
+	pd = platform_device_register_full(&gpr_i2c_pdev_info);
+	err = PTR_ERR_OR_ZERO(pd);
+	if (err)
+		pr_err("failed to create I2C device: %d\n", err);
+}
+
+static struct i2c_board_info gpr_i2c_info[] __initdata = {
+	{
+		I2C_BOARD_INFO("lm83", 0x18),
+	}
+};
+
+
+
+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,
+};
+
+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));
+	gpr_i2c_init();
+	gpr_leds_init();
+
+	return platform_add_devices(gpr_devices, ARRAY_SIZE(gpr_devices));
+}
+device_initcall(gpr_dev_init);