arch/mips/alchemy/board-mtx1.c - kernel/common - Git at Google

 /*
  * MTX-1 platform devices registration (Au1500)
  *
  * Copyright (C) 2007-2009, Florian Fainelli <[email protected]>
  *
  * 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/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_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 __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(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 resource mtx1_wdt_res[] = {
 	[0] = {
 		.start	= 215,
 		.end	= 215,
 		.name	= "mtx1-wdt-gpio",
 		.flags	= IORESOURCE_IRQ,
 	}
 };

 static struct platform_device mtx1_wdt = {
 	.name = "mtx1-wdt",
 	.id = 0,
 	.num_resources = ARRAY_SIZE(mtx1_wdt_res),
 	.resource = mtx1_wdt_res,
 };

 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:
 	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
 }
 arch_initcall(mtx1_register_devices);
	/*
	* MTX-1 platform devices registration (Au1500)
	*
	* Copyright (C) 2007-2009, Florian Fainelli <[email protected]>
	*
	* 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/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_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 __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(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 resource mtx1_wdt_res[] = {
	[0] = {
	.start = 215,
	.end = 215,
	.name = "mtx1-wdt-gpio",
	.flags = IORESOURCE_IRQ,
	}
	};

	static struct platform_device mtx1_wdt = {
	.name = "mtx1-wdt",
	.id = 0,
	.num_resources = ARRAY_SIZE(mtx1_wdt_res),
	.resource = mtx1_wdt_res,
	};

	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:
	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
	}
	arch_initcall(mtx1_register_devices);