/* * MTX-1 platform devices registration (Au1500) * * Copyright (C) 2007-2009, Florian Fainelli * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include 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);