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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 | // 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); |