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acb36559 DM |
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> | |
22a0200b | 17 | #include <linux/etherdevice.h> |
acb36559 DM |
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> | |
91fcfb90 | 27 | #include <mach/pxafb.h> |
82b95ecb | 28 | #include <plat/pxa3xx_nand.h> |
acb36559 DM |
29 | |
30 | #include "generic.h" | |
31 | #include "devices.h" | |
32 | ||
22a0200b DM |
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 | ||
acb36559 DM |
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 = { | |
f97cab28 | 99 | .detect_delay_ms = 200, |
7a648256 RJ |
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, | |
acb36559 DM |
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 | ||
91fcfb90 DM |
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 | ||
53740df1 DM |
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 |