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- /*
- * MTX-1 platform devices registration (Au1500)
- *
- * Copyright (C) 2007-2009, Florian Fainelli <florian@openwrt.org>
- *
- * 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/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(unsigned 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 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);
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