1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * arch/arm/mach-pxa/colibri-pxa300.c
4 *
5 * Support for Toradex PXA300/310 based Colibri module
6 *
7 * Daniel Mack <daniel@caiaq.de>
8 * Matthias Meier <matthias.j.meier@gmx.net>
9 */
10
11 #include <linux/init.h>
12 #include <linux/kernel.h>
13 #include <linux/platform_device.h>
14 #include <linux/gpio.h>
15 #include <linux/interrupt.h>
16
17 #include <asm/mach-types.h>
18 #include <linux/sizes.h>
19 #include <asm/mach/arch.h>
20 #include <asm/mach/irq.h>
21
22 #include "pxa300.h"
23 #include "colibri.h"
24 #include <linux/platform_data/usb-ohci-pxa27x.h>
25 #include <linux/platform_data/video-pxafb.h>
26 #include <mach/audio.h>
27
28 #include "generic.h"
29 #include "devices.h"
30
31
32 #ifdef CONFIG_MACH_COLIBRI_EVALBOARD
33 static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {
34 /* MMC */
35 GPIO7_MMC1_CLK,
36 GPIO14_MMC1_CMD,
37 GPIO3_MMC1_DAT0,
38 GPIO4_MMC1_DAT1,
39 GPIO5_MMC1_DAT2,
40 GPIO6_MMC1_DAT3,
41 GPIO13_GPIO, /* GPIO13_COLIBRI_PXA300_SD_DETECT */
42
43 /* UHC */
44 GPIO0_2_USBH_PEN,
45 GPIO1_2_USBH_PWR,
46 GPIO77_USB_P3_1,
47 GPIO78_USB_P3_2,
48 GPIO79_USB_P3_3,
49 GPIO80_USB_P3_4,
50 GPIO81_USB_P3_5,
51 GPIO82_USB_P3_6,
52
53 /* I2C */
54 GPIO21_I2C_SCL,
55 GPIO22_I2C_SDA,
56 };
57 #else
58 static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {};
59 #endif
60
61 #if defined(CONFIG_AX88796)
62 #define COLIBRI_ETH_IRQ_GPIO mfp_to_gpio(GPIO26_GPIO)
63 /*
64 * Asix AX88796 Ethernet
65 */
66 static struct ax_plat_data colibri_asix_platdata = {
67 .flags = 0, /* defined later */
68 .wordlength = 2,
69 };
70
71 static struct resource colibri_asix_resource[] = {
72 [0] = {
73 .start = PXA3xx_CS2_PHYS,
74 .end = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
75 .flags = IORESOURCE_MEM,
76 },
77 [1] = {
78 .start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
79 .end = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
80 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
81 }
82 };
83
84 static struct platform_device asix_device = {
85 .name = "ax88796",
86 .id = 0,
87 .num_resources = ARRAY_SIZE(colibri_asix_resource),
88 .resource = colibri_asix_resource,
89 .dev = {
90 .platform_data = &colibri_asix_platdata
91 }
92 };
93
94 static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
95 GPIO1_nCS2, /* AX88796 chip select */
96 GPIO26_GPIO | MFP_PULL_HIGH /* AX88796 IRQ */
97 };
98
colibri_pxa300_init_eth(void)99 static void __init colibri_pxa300_init_eth(void)
100 {
101 colibri_pxa3xx_init_eth(&colibri_asix_platdata);
102 pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
103 platform_device_register(&asix_device);
104 }
105 #else
colibri_pxa300_init_eth(void)106 static inline void __init colibri_pxa300_init_eth(void) {}
107 #endif /* CONFIG_AX88796 */
108
109 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
110 static mfp_cfg_t colibri_pxa300_lcd_pin_config[] __initdata = {
111 GPIO54_LCD_LDD_0,
112 GPIO55_LCD_LDD_1,
113 GPIO56_LCD_LDD_2,
114 GPIO57_LCD_LDD_3,
115 GPIO58_LCD_LDD_4,
116 GPIO59_LCD_LDD_5,
117 GPIO60_LCD_LDD_6,
118 GPIO61_LCD_LDD_7,
119 GPIO62_LCD_LDD_8,
120 GPIO63_LCD_LDD_9,
121 GPIO64_LCD_LDD_10,
122 GPIO65_LCD_LDD_11,
123 GPIO66_LCD_LDD_12,
124 GPIO67_LCD_LDD_13,
125 GPIO68_LCD_LDD_14,
126 GPIO69_LCD_LDD_15,
127 GPIO70_LCD_LDD_16,
128 GPIO71_LCD_LDD_17,
129 GPIO62_LCD_CS_N,
130 GPIO72_LCD_FCLK,
131 GPIO73_LCD_LCLK,
132 GPIO74_LCD_PCLK,
133 GPIO75_LCD_BIAS,
134 GPIO76_LCD_VSYNC,
135 };
136
colibri_pxa300_init_lcd(void)137 static void __init colibri_pxa300_init_lcd(void)
138 {
139 pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_lcd_pin_config));
140 }
141
142 #else
colibri_pxa300_init_lcd(void)143 static inline void colibri_pxa300_init_lcd(void) {}
144 #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
145
146 #if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
147 static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
148 GPIO24_AC97_SYSCLK,
149 GPIO23_AC97_nACRESET,
150 GPIO25_AC97_SDATA_IN_0,
151 GPIO27_AC97_SDATA_OUT,
152 GPIO28_AC97_SYNC,
153 GPIO29_AC97_BITCLK
154 };
155
colibri_pxa310_init_ac97(void)156 static inline void __init colibri_pxa310_init_ac97(void)
157 {
158 /* no AC97 codec on Colibri PXA300 */
159 if (!cpu_is_pxa310())
160 return;
161
162 pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa310_ac97_pin_config));
163 pxa_set_ac97_info(NULL);
164 }
165 #else
colibri_pxa310_init_ac97(void)166 static inline void colibri_pxa310_init_ac97(void) {}
167 #endif
168
colibri_pxa300_init(void)169 void __init colibri_pxa300_init(void)
170 {
171 colibri_pxa300_init_eth();
172 colibri_pxa3xx_init_nand();
173 colibri_pxa300_init_lcd();
174 colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO39_GPIO));
175 colibri_pxa310_init_ac97();
176
177 /* Evalboard init */
178 pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_evalboard_pin_config));
179 colibri_evalboard_init();
180 }
181
182 MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
183 .atag_offset = 0x100,
184 .init_machine = colibri_pxa300_init,
185 .map_io = pxa3xx_map_io,
186 .nr_irqs = PXA_NR_IRQS,
187 .init_irq = pxa3xx_init_irq,
188 .handle_irq = pxa3xx_handle_irq,
189 .init_time = pxa_timer_init,
190 .restart = pxa_restart,
191 MACHINE_END
192
193