1 files changed, 285 insertions, 0 deletions
diff --git a/arch/mips/alchemy/board-mtx1.c b/arch/mips/alchemy/board-mtx1.c
new file mode 100644
index 000000000..68ea57511
--- /dev/null
+++ b/arch/mips/alchemy/board-mtx1.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * MTX-1 platform devices registration (Au1500)
+ *
+ * Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <mtd/mtd-abi.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/setup.h>
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio-au1000.h>
+#include <asm/mach-au1x00/au1xxx_eth.h>
+#include <prom.h>
+
+const char *get_system_type(void)
+{
+	return "MTX-1";
+}
+
+void prom_putchar(char c)
+{
+	alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c);
+}
+
+static void mtx1_reset(char *c)
+{
+	/* Jump to the reset vector */
+	__asm__ __volatile__("jr\t%0" : : "r"(0xbfc00000));
+}
+
+static void mtx1_power_off(void)
+{
+	while (1)
+		asm volatile (
+		"	.set	mips32					\n"
+		"	wait						\n"
+		"	.set	mips0					\n");
+}
+
+void __init board_setup(void)
+{
+#if IS_ENABLED(CONFIG_USB_OHCI_HCD)
+	/* Enable USB power switch */
+	alchemy_gpio_direction_output(204, 0);
+#endif /* IS_ENABLED(CONFIG_USB_OHCI_HCD) */
+
+	/* Initialize sys_pinfunc */
+	alchemy_wrsys(SYS_PF_NI2, AU1000_SYS_PINFUNC);
+
+	/* Initialize GPIO */
+	alchemy_wrsys(~0, AU1000_SYS_TRIOUTCLR);
+	alchemy_gpio_direction_output(0, 0);	/* Disable M66EN (PCI 66MHz) */
+	alchemy_gpio_direction_output(3, 1);	/* Disable PCI CLKRUN# */
+	alchemy_gpio_direction_output(1, 1);	/* Enable EXT_IO3 */
+	alchemy_gpio_direction_output(5, 0);	/* Disable eth PHY TX_ER */
+
+	/* Enable LED and set it to green */
+	alchemy_gpio_direction_output(211, 1);	/* green on */
+	alchemy_gpio_direction_output(212, 0);	/* red off */
+
+	pm_power_off = mtx1_power_off;
+	_machine_halt = mtx1_power_off;
+	_machine_restart = mtx1_reset;
+
+	printk(KERN_INFO "4G Systems MTX-1 Board\n");
+}
+
+/******************************************************************************/
+
+static struct gpio_keys_button mtx1_gpio_button[] = {
+	{
+		.gpio = 207,
+		.code = BTN_0,
+		.desc = "System button",
+	}
+};
+
+static struct gpio_keys_platform_data mtx1_buttons_data = {
+	.buttons = mtx1_gpio_button,
+	.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
+};
+
+static struct platform_device mtx1_button = {
+	.name = "gpio-keys",
+	.id = -1,
+	.dev = {
+		.platform_data = &mtx1_buttons_data,
+	}
+};
+
+static struct gpiod_lookup_table mtx1_wdt_gpio_table = {
+	.dev_id = "mtx1-wdt.0",
+	.table = {
+		/* Global number 215 is offset 15 on Alchemy GPIO 2 */
+		GPIO_LOOKUP("alchemy-gpio2", 15, NULL, GPIO_ACTIVE_HIGH),
+		{ },
+	},
+};
+
+static struct platform_device mtx1_wdt = {
+	.name = "mtx1-wdt",
+	.id = 0,
+};
+
+static const struct gpio_led default_leds[] = {
+	{
+		.name	= "mtx1:green",
+		.gpio = 211,
+	}, {
+		.name = "mtx1:red",
+		.gpio = 212,
+	},
+};
+
+static struct gpio_led_platform_data mtx1_led_data = {
+	.num_leds = ARRAY_SIZE(default_leds),
+	.leds = default_leds,
+};
+
+static struct platform_device mtx1_gpio_leds = {
+	.name = "leds-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &mtx1_led_data,
+	}
+};
+
+static struct mtd_partition mtx1_mtd_partitions[] = {
+	{
+		.name	= "filesystem",
+		.size	= 0x01C00000,
+		.offset = 0,
+	},
+	{
+		.name	= "yamon",
+		.size	= 0x00100000,
+		.offset = MTDPART_OFS_APPEND,
+		.mask_flags = MTD_WRITEABLE,
+	},
+	{
+		.name	= "kernel",
+		.size	= 0x002c0000,
+		.offset = MTDPART_OFS_APPEND,
+	},
+	{
+		.name	= "yamon env",
+		.size	= 0x00040000,
+		.offset = MTDPART_OFS_APPEND,
+	},
+};
+
+static struct physmap_flash_data mtx1_flash_data = {
+	.width		= 4,
+	.nr_parts	= 4,
+	.parts		= mtx1_mtd_partitions,
+};
+
+static struct resource mtx1_mtd_resource = {
+	.start	= 0x1e000000,
+	.end	= 0x1fffffff,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct platform_device mtx1_mtd = {
+	.name		= "physmap-flash",
+	.dev		= {
+		.platform_data	= &mtx1_flash_data,
+	},
+	.num_resources	= 1,
+	.resource	= &mtx1_mtd_resource,
+};
+
+static struct resource alchemy_pci_host_res[] = {
+	[0] = {
+		.start	= AU1500_PCI_PHYS_ADDR,
+		.end	= AU1500_PCI_PHYS_ADDR + 0xfff,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static int mtx1_pci_idsel(unsigned int devsel, int assert)
+{
+	/* This function is only necessary to support a proprietary Cardbus
+	 * adapter on the mtx-1 "singleboard" variant. It triggers a custom
+	 * logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals.
+	 */
+	udelay(1);
+
+	if (assert && devsel != 0)
+		/* Suppress signal to Cardbus */
+		alchemy_gpio_set_value(1, 0);	/* set EXT_IO3 OFF */
+	else
+		alchemy_gpio_set_value(1, 1);	/* set EXT_IO3 ON */
+
+	udelay(1);
+	return 1;
+}
+
+static const char mtx1_irqtab[][5] = {
+	[0] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 00 - AdapterA-Slot0 (top) */
+	[1] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 01 - AdapterA-Slot1 (bottom) */
+	[2] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 02 - AdapterB-Slot0 (top) */
+	[3] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 03 - AdapterB-Slot1 (bottom) */
+	[4] = { -1, AU1500_PCI_INTA, AU1500_PCI_INTB, 0xff, 0xff }, /* IDSEL 04 - AdapterC-Slot0 (top) */
+	[5] = { -1, AU1500_PCI_INTB, AU1500_PCI_INTA, 0xff, 0xff }, /* IDSEL 05 - AdapterC-Slot1 (bottom) */
+	[6] = { -1, AU1500_PCI_INTC, AU1500_PCI_INTD, 0xff, 0xff }, /* IDSEL 06 - AdapterD-Slot0 (top) */
+	[7] = { -1, AU1500_PCI_INTD, AU1500_PCI_INTC, 0xff, 0xff }, /* IDSEL 07 - AdapterD-Slot1 (bottom) */
+};
+
+static int mtx1_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+	return mtx1_irqtab[slot][pin];
+}
+
+static struct alchemy_pci_platdata mtx1_pci_pd = {
+	.board_map_irq	 = mtx1_map_pci_irq,
+	.board_pci_idsel = mtx1_pci_idsel,
+	.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 mtx1_pci_host = {
+	.dev.platform_data = &mtx1_pci_pd,
+	.name		= "alchemy-pci",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(alchemy_pci_host_res),
+	.resource	= alchemy_pci_host_res,
+};
+
+static struct platform_device *mtx1_devs[] __initdata = {
+	&mtx1_pci_host,
+	&mtx1_gpio_leds,
+	&mtx1_wdt,
+	&mtx1_button,
+	&mtx1_mtd,
+};
+
+static struct au1000_eth_platform_data mtx1_au1000_eth0_pdata = {
+	.phy_search_highest_addr	= 1,
+	.phy1_search_mac0		= 1,
+};
+
+static int __init mtx1_register_devices(void)
+{
+	int rc;
+
+	irq_set_irq_type(AU1500_GPIO204_INT, IRQ_TYPE_LEVEL_HIGH);
+	irq_set_irq_type(AU1500_GPIO201_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO202_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO203_INT, IRQ_TYPE_LEVEL_LOW);
+	irq_set_irq_type(AU1500_GPIO205_INT, IRQ_TYPE_LEVEL_LOW);
+
+	au1xxx_override_eth_cfg(0, &mtx1_au1000_eth0_pdata);
+
+	rc = gpio_request(mtx1_gpio_button[0].gpio,
+					mtx1_gpio_button[0].desc);
+	if (rc < 0) {
+		printk(KERN_INFO "mtx1: failed to request %d\n",
+					mtx1_gpio_button[0].gpio);
+		goto out;
+	}
+	gpio_direction_input(mtx1_gpio_button[0].gpio);
+out:
+	gpiod_add_lookup_table(&mtx1_wdt_gpio_table);
+	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
+}
+arch_initcall(mtx1_register_devices);