| 1 | /* |
| 2 | * Mikrotik RouterBOARD 150 support |
| 3 | * |
| 4 | * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License version 2 as published |
| 8 | * by the Free Software Foundation. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include "rb-1xx.h" |
| 13 | |
| 14 | #define RB150_NAND_BASE 0x1FC80000 |
| 15 | #define RB150_NAND_SIZE 1 |
| 16 | |
| 17 | #define RB150_GPIO_NAND_READY ADM5120_GPIO_PIN0 |
| 18 | #define RB150_GPIO_NAND_NCE ADM5120_GPIO_PIN1 |
| 19 | #define RB150_GPIO_NAND_CLE ADM5120_GPIO_P2L2 |
| 20 | #define RB150_GPIO_NAND_ALE ADM5120_GPIO_P3L2 |
| 21 | #define RB150_GPIO_RESET_BUTTON ADM5120_GPIO_PIN1 /* FIXME */ |
| 22 | |
| 23 | #define RB150_GPIO_DEV_MASK (1 << RB150_GPIO_NAND_READY \ |
| 24 | | 1 << RB150_GPIO_NAND_NCE \ |
| 25 | | 1 << RB150_GPIO_NAND_CLE \ |
| 26 | | 1 << RB150_GPIO_NAND_ALE) |
| 27 | |
| 28 | #define RB150_NAND_DELAY 100 |
| 29 | |
| 30 | #define RB150_NAND_WRITE(v) \ |
| 31 | writeb((v), (void __iomem *)KSEG1ADDR(RB150_NAND_BASE)) |
| 32 | |
| 33 | static struct resource rb150_nand_resources[] __initdata = { |
| 34 | [0] = { |
| 35 | .start = RB150_NAND_BASE, |
| 36 | .end = RB150_NAND_BASE + RB150_NAND_SIZE-1, |
| 37 | .flags = IORESOURCE_MEM, |
| 38 | }, |
| 39 | }; |
| 40 | |
| 41 | static struct gpio_led rb150_gpio_leds[] __initdata = { |
| 42 | GPIO_LED_STD(ADM5120_GPIO_P0L2, "user", NULL), |
| 43 | GPIO_LED_INV(ADM5120_GPIO_P0L1, "lan1_led1", NULL), |
| 44 | GPIO_LED_INV(ADM5120_GPIO_P0L0, "lan1_led2", NULL), |
| 45 | GPIO_LED_INV(ADM5120_GPIO_P1L1, "lan5_led1", NULL), |
| 46 | GPIO_LED_INV(ADM5120_GPIO_P1L0, "lan5_led2", NULL), |
| 47 | GPIO_LED_INV(ADM5120_GPIO_P2L1, "lan4_led1", NULL), |
| 48 | GPIO_LED_INV(ADM5120_GPIO_P2L0, "lan4_led2", NULL), |
| 49 | GPIO_LED_INV(ADM5120_GPIO_P3L1, "lan3_led1", NULL), |
| 50 | GPIO_LED_INV(ADM5120_GPIO_P3L0, "lan3_led2", NULL), |
| 51 | GPIO_LED_INV(ADM5120_GPIO_P4L1, "lan2_led1", NULL), |
| 52 | GPIO_LED_INV(ADM5120_GPIO_P4L0, "lan2_led2", NULL), |
| 53 | }; |
| 54 | |
| 55 | static u8 rb150_vlans[6] __initdata = { |
| 56 | 0x7F, 0x00, 0x00, 0x00, 0x00, 0x00 |
| 57 | }; |
| 58 | |
| 59 | static int rb150_nand_dev_ready(struct mtd_info *mtd) |
| 60 | { |
| 61 | return gpio_get_value(RB150_GPIO_NAND_READY); |
| 62 | } |
| 63 | |
| 64 | static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, |
| 65 | unsigned int ctrl) |
| 66 | { |
| 67 | if (ctrl & NAND_CTRL_CHANGE) { |
| 68 | gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0); |
| 69 | gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0); |
| 70 | gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1); |
| 71 | } |
| 72 | |
| 73 | udelay(RB150_NAND_DELAY); |
| 74 | |
| 75 | if (cmd != NAND_CMD_NONE) |
| 76 | RB150_NAND_WRITE(cmd); |
| 77 | } |
| 78 | |
| 79 | static void __init rb150_add_device_nand(void) |
| 80 | { |
| 81 | struct platform_device *pdev; |
| 82 | int err; |
| 83 | |
| 84 | /* setup GPIO pins for NAND flash chip */ |
| 85 | gpio_request(RB150_GPIO_NAND_READY, "nand-ready"); |
| 86 | gpio_direction_input(RB150_GPIO_NAND_READY); |
| 87 | gpio_request(RB150_GPIO_NAND_NCE, "nand-nce"); |
| 88 | gpio_direction_output(RB150_GPIO_NAND_NCE, 1); |
| 89 | gpio_request(RB150_GPIO_NAND_CLE, "nand-cle"); |
| 90 | gpio_direction_output(RB150_GPIO_NAND_CLE, 0); |
| 91 | gpio_request(RB150_GPIO_NAND_ALE, "nand-ale"); |
| 92 | gpio_direction_output(RB150_GPIO_NAND_ALE, 0); |
| 93 | |
| 94 | pdev = platform_device_alloc("gen_nand", -1); |
| 95 | if (!pdev) |
| 96 | goto err_out; |
| 97 | |
| 98 | err = platform_device_add_resources(pdev, rb150_nand_resources, |
| 99 | ARRAY_SIZE(rb150_nand_resources)); |
| 100 | if (err) |
| 101 | goto err_put; |
| 102 | |
| 103 | |
| 104 | rb1xx_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl; |
| 105 | rb1xx_nand_data.ctrl.dev_ready = rb150_nand_dev_ready; |
| 106 | |
| 107 | err = platform_device_add_data(pdev, &rb1xx_nand_data, |
| 108 | sizeof(rb1xx_nand_data)); |
| 109 | if (err) |
| 110 | goto err_put; |
| 111 | |
| 112 | err = platform_device_add(pdev); |
| 113 | if (err) |
| 114 | goto err_put; |
| 115 | |
| 116 | return; |
| 117 | |
| 118 | err_put: |
| 119 | platform_device_put(pdev); |
| 120 | err_out: |
| 121 | return; |
| 122 | } |
| 123 | |
| 124 | static void __init rb150_setup(void) |
| 125 | { |
| 126 | rb1xx_gpio_buttons[0].gpio = RB150_GPIO_RESET_BUTTON; |
| 127 | rb1xx_generic_setup(); |
| 128 | rb150_add_device_nand(); |
| 129 | |
| 130 | adm5120_add_device_gpio(RB150_GPIO_DEV_MASK); |
| 131 | adm5120_add_device_gpio_leds(ARRAY_SIZE(rb150_gpio_leds), |
| 132 | rb150_gpio_leds); |
| 133 | adm5120_add_device_switch(5, rb150_vlans); |
| 134 | } |
| 135 | |
| 136 | MIPS_MACHINE(MACH_ADM5120_RB_150, "miniROUTER", "Mikrotik RouterBOARD 150", |
| 137 | rb150_setup); |
| 138 | |
