Daniel Mack | acb3655 | 2009-03-23 02:04:17 +0100 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/mach-pxa/colibri-pxa3xx.c |
| 3 | * |
| 4 | * Common functions for all Toradex PXA3xx modules |
| 5 | * |
| 6 | * Daniel Mack <daniel@caiaq.de> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/init.h> |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | #include <linux/gpio.h> |
Daniel Mack | 22a0200 | 2009-04-02 08:33:14 +0200 | [diff] [blame] | 17 | #include <linux/etherdevice.h> |
Daniel Mack | acb3655 | 2009-03-23 02:04:17 +0100 | [diff] [blame] | 18 | #include <asm/mach-types.h> |
| 19 | #include <mach/hardware.h> |
| 20 | #include <asm/sizes.h> |
| 21 | #include <asm/mach/arch.h> |
| 22 | #include <asm/mach/irq.h> |
| 23 | #include <mach/pxa3xx-regs.h> |
| 24 | #include <mach/mfp-pxa300.h> |
| 25 | #include <mach/colibri.h> |
| 26 | #include <mach/mmc.h> |
Daniel Mack | 91fcfb9 | 2009-03-23 02:04:19 +0100 | [diff] [blame] | 27 | #include <mach/pxafb.h> |
Haojian Zhuang | 82b95ec | 2009-09-10 13:55:23 +0800 | [diff] [blame] | 28 | #include <plat/pxa3xx_nand.h> |
Daniel Mack | acb3655 | 2009-03-23 02:04:17 +0100 | [diff] [blame] | 29 | |
| 30 | #include "generic.h" |
| 31 | #include "devices.h" |
| 32 | |
Daniel Mack | 22a0200 | 2009-04-02 08:33:14 +0200 | [diff] [blame] | 33 | #if defined(CONFIG_AX88796) |
| 34 | #define ETHER_ADDR_LEN 6 |
| 35 | static u8 ether_mac_addr[ETHER_ADDR_LEN]; |
| 36 | |
| 37 | void __init colibri_pxa3xx_init_eth(struct ax_plat_data *plat_data) |
| 38 | { |
| 39 | int i; |
| 40 | u64 serial = ((u64) system_serial_high << 32) | system_serial_low; |
| 41 | |
| 42 | /* |
| 43 | * If the bootloader passed in a serial boot tag, which contains a |
| 44 | * valid ethernet MAC, pass it to the interface. Toradex ships the |
| 45 | * modules with their own bootloader which provides a valid MAC |
| 46 | * this way. |
| 47 | */ |
| 48 | |
| 49 | for (i = 0; i < ETHER_ADDR_LEN; i++) { |
| 50 | ether_mac_addr[i] = serial & 0xff; |
| 51 | serial >>= 8; |
| 52 | } |
| 53 | |
| 54 | if (is_valid_ether_addr(ether_mac_addr)) { |
| 55 | plat_data->flags |= AXFLG_MAC_FROMPLATFORM; |
| 56 | plat_data->mac_addr = ether_mac_addr; |
| 57 | printk(KERN_INFO "%s(): taking MAC from serial boot tag\n", |
| 58 | __func__); |
| 59 | } else { |
| 60 | plat_data->flags |= AXFLG_MAC_FROMDEV; |
| 61 | printk(KERN_INFO "%s(): no valid serial boot tag found, " |
| 62 | "taking MAC from device\n", __func__); |
| 63 | } |
| 64 | } |
| 65 | #endif |
| 66 | |
Daniel Mack | acb3655 | 2009-03-23 02:04:17 +0100 | [diff] [blame] | 67 | #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE) |
| 68 | static int mmc_detect_pin; |
| 69 | |
| 70 | static int colibri_pxa3xx_mci_init(struct device *dev, |
| 71 | irq_handler_t colibri_mmc_detect_int, |
| 72 | void *data) |
| 73 | { |
| 74 | int ret; |
| 75 | |
| 76 | ret = gpio_request(mmc_detect_pin, "mmc card detect"); |
| 77 | if (ret) |
| 78 | return ret; |
| 79 | |
| 80 | gpio_direction_input(mmc_detect_pin); |
| 81 | ret = request_irq(gpio_to_irq(mmc_detect_pin), colibri_mmc_detect_int, |
| 82 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
| 83 | "MMC card detect", data); |
| 84 | if (ret) { |
| 85 | gpio_free(mmc_detect_pin); |
| 86 | return ret; |
| 87 | } |
| 88 | |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | static void colibri_pxa3xx_mci_exit(struct device *dev, void *data) |
| 93 | { |
| 94 | free_irq(mmc_detect_pin, data); |
| 95 | gpio_free(gpio_to_irq(mmc_detect_pin)); |
| 96 | } |
| 97 | |
| 98 | static struct pxamci_platform_data colibri_pxa3xx_mci_platform_data = { |
Eric Miao | f97cab2 | 2010-04-14 07:00:42 +0800 | [diff] [blame] | 99 | .detect_delay_ms = 200, |
Robert Jarzmik | 7a64825 | 2009-07-06 22:16:42 +0200 | [diff] [blame] | 100 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| 101 | .init = colibri_pxa3xx_mci_init, |
| 102 | .exit = colibri_pxa3xx_mci_exit, |
| 103 | .gpio_card_detect = -1, |
| 104 | .gpio_card_ro = -1, |
| 105 | .gpio_power = -1, |
Daniel Mack | acb3655 | 2009-03-23 02:04:17 +0100 | [diff] [blame] | 106 | }; |
| 107 | |
| 108 | void __init colibri_pxa3xx_init_mmc(mfp_cfg_t *pins, int len, int detect_pin) |
| 109 | { |
| 110 | pxa3xx_mfp_config(pins, len); |
| 111 | mmc_detect_pin = detect_pin; |
| 112 | pxa_set_mci_info(&colibri_pxa3xx_mci_platform_data); |
| 113 | } |
| 114 | #endif /* CONFIG_MMC_PXA || CONFIG_MMC_PXA_MODULE */ |
| 115 | |
Daniel Mack | 91fcfb9 | 2009-03-23 02:04:19 +0100 | [diff] [blame] | 116 | #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) |
| 117 | static int lcd_bl_pin; |
| 118 | |
| 119 | /* |
| 120 | * LCD panel (Sharp LQ043T3DX02) |
| 121 | */ |
| 122 | static void colibri_lcd_backlight(int on) |
| 123 | { |
| 124 | gpio_set_value(lcd_bl_pin, !!on); |
| 125 | } |
| 126 | |
| 127 | static struct pxafb_mode_info sharp_lq43_mode = { |
| 128 | .pixclock = 101936, |
| 129 | .xres = 480, |
| 130 | .yres = 272, |
| 131 | .bpp = 32, |
| 132 | .depth = 18, |
| 133 | .hsync_len = 41, |
| 134 | .left_margin = 2, |
| 135 | .right_margin = 2, |
| 136 | .vsync_len = 10, |
| 137 | .upper_margin = 2, |
| 138 | .lower_margin = 2, |
| 139 | .sync = 0, |
| 140 | .cmap_greyscale = 0, |
| 141 | }; |
| 142 | |
| 143 | static struct pxafb_mach_info sharp_lq43_info = { |
| 144 | .modes = &sharp_lq43_mode, |
| 145 | .num_modes = 1, |
| 146 | .cmap_inverse = 0, |
| 147 | .cmap_static = 0, |
| 148 | .lcd_conn = LCD_COLOR_TFT_18BPP, |
| 149 | .pxafb_backlight_power = colibri_lcd_backlight, |
| 150 | }; |
| 151 | |
| 152 | void __init colibri_pxa3xx_init_lcd(int bl_pin) |
| 153 | { |
| 154 | lcd_bl_pin = bl_pin; |
| 155 | gpio_request(bl_pin, "lcd backlight"); |
| 156 | gpio_direction_output(bl_pin, 0); |
| 157 | set_pxa_fb_info(&sharp_lq43_info); |
| 158 | } |
| 159 | #endif |
| 160 | |
Daniel Mack | 53740df | 2009-06-17 10:32:54 +0200 | [diff] [blame] | 161 | #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE) |
| 162 | static struct mtd_partition colibri_nand_partitions[] = { |
| 163 | { |
| 164 | .name = "bootloader", |
| 165 | .offset = 0, |
| 166 | .size = SZ_512K, |
| 167 | .mask_flags = MTD_WRITEABLE, /* force read-only */ |
| 168 | }, |
| 169 | { |
| 170 | .name = "kernel", |
| 171 | .offset = MTDPART_OFS_APPEND, |
| 172 | .size = SZ_4M, |
| 173 | .mask_flags = MTD_WRITEABLE, /* force read-only */ |
| 174 | }, |
| 175 | { |
| 176 | .name = "reserved", |
| 177 | .offset = MTDPART_OFS_APPEND, |
| 178 | .size = SZ_1M, |
| 179 | .mask_flags = MTD_WRITEABLE, /* force read-only */ |
| 180 | }, |
| 181 | { |
| 182 | .name = "fs", |
| 183 | .offset = MTDPART_OFS_APPEND, |
| 184 | .size = MTDPART_SIZ_FULL, |
| 185 | }, |
| 186 | }; |
| 187 | |
| 188 | static struct pxa3xx_nand_platform_data colibri_nand_info = { |
| 189 | .enable_arbiter = 1, |
| 190 | .keep_config = 1, |
| 191 | .parts = colibri_nand_partitions, |
| 192 | .nr_parts = ARRAY_SIZE(colibri_nand_partitions), |
| 193 | }; |
| 194 | |
| 195 | void __init colibri_pxa3xx_init_nand(void) |
| 196 | { |
| 197 | pxa3xx_set_nand_info(&colibri_nand_info); |
| 198 | } |
| 199 | #endif |
| 200 | |