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f16e05c7 TU |
1 | /* |
2 | * linux/arch/arm/mach-mmp/gplugd.c | |
3 | * | |
4 | * Support for the Marvell PXA168-based GuruPlug Display (gplugD) Platform. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 as | |
8 | * publishhed by the Free Software Foundation. | |
9 | */ | |
10 | ||
11 | #include <linux/init.h> | |
e71dc5f7 | 12 | #include <linux/platform_device.h> |
f55be1bf | 13 | #include <linux/gpio.h> |
b8f649f1 | 14 | #include <linux/gpio-pxa.h> |
f16e05c7 TU |
15 | |
16 | #include <asm/mach/arch.h> | |
17 | #include <asm/mach-types.h> | |
18 | ||
bac6f615 | 19 | #include <mach/irqs.h> |
f16e05c7 TU |
20 | #include <mach/pxa168.h> |
21 | #include <mach/mfp-pxa168.h> | |
f16e05c7 TU |
22 | |
23 | #include "common.h" | |
24 | ||
25 | static unsigned long gplugd_pin_config[] __initdata = { | |
26 | /* UART3 */ | |
3647a40f TU |
27 | GPIO8_UART3_TXD, |
28 | GPIO9_UART3_RXD, | |
29 | GPIO1O_UART3_CTS, | |
30 | GPIO11_UART3_RTS, | |
31 | ||
32 | /* USB OTG PEN */ | |
33 | GPIO18_GPIO, | |
f16e05c7 TU |
34 | |
35 | /* MMC2 */ | |
36 | GPIO28_MMC2_CMD, | |
37 | GPIO29_MMC2_CLK, | |
38 | GPIO30_MMC2_DAT0, | |
39 | GPIO31_MMC2_DAT1, | |
40 | GPIO32_MMC2_DAT2, | |
41 | GPIO33_MMC2_DAT3, | |
42 | ||
43 | /* LCD & HDMI clock selection GPIO: 0: 74.176MHz, 1: 74.25 MHz */ | |
44 | GPIO35_GPIO, | |
45 | GPIO36_GPIO, /* CEC Interrupt */ | |
46 | ||
47 | /* MMC1 */ | |
48 | GPIO43_MMC1_CLK, | |
49 | GPIO49_MMC1_CMD, | |
50 | GPIO41_MMC1_DAT0, | |
51 | GPIO40_MMC1_DAT1, | |
52 | GPIO52_MMC1_DAT2, | |
53 | GPIO51_MMC1_DAT3, | |
54 | GPIO53_MMC1_CD, | |
55 | ||
56 | /* LCD */ | |
57 | GPIO56_LCD_FCLK_RD, | |
58 | GPIO57_LCD_LCLK_A0, | |
59 | GPIO58_LCD_PCLK_WR, | |
60 | GPIO59_LCD_DENA_BIAS, | |
61 | GPIO60_LCD_DD0, | |
62 | GPIO61_LCD_DD1, | |
63 | GPIO62_LCD_DD2, | |
64 | GPIO63_LCD_DD3, | |
65 | GPIO64_LCD_DD4, | |
66 | GPIO65_LCD_DD5, | |
67 | GPIO66_LCD_DD6, | |
68 | GPIO67_LCD_DD7, | |
69 | GPIO68_LCD_DD8, | |
70 | GPIO69_LCD_DD9, | |
71 | GPIO70_LCD_DD10, | |
72 | GPIO71_LCD_DD11, | |
73 | GPIO72_LCD_DD12, | |
74 | GPIO73_LCD_DD13, | |
75 | GPIO74_LCD_DD14, | |
76 | GPIO75_LCD_DD15, | |
77 | GPIO76_LCD_DD16, | |
78 | GPIO77_LCD_DD17, | |
79 | GPIO78_LCD_DD18, | |
80 | GPIO79_LCD_DD19, | |
81 | GPIO80_LCD_DD20, | |
82 | GPIO81_LCD_DD21, | |
83 | GPIO82_LCD_DD22, | |
84 | GPIO83_LCD_DD23, | |
85 | ||
86 | /* GPIO */ | |
87 | GPIO84_GPIO, | |
88 | GPIO85_GPIO, | |
89 | ||
90 | /* Fast-Ethernet*/ | |
91 | GPIO86_TX_CLK, | |
92 | GPIO87_TX_EN, | |
93 | GPIO88_TX_DQ3, | |
94 | GPIO89_TX_DQ2, | |
95 | GPIO90_TX_DQ1, | |
96 | GPIO91_TX_DQ0, | |
97 | GPIO92_MII_CRS, | |
98 | GPIO93_MII_COL, | |
99 | GPIO94_RX_CLK, | |
100 | GPIO95_RX_ER, | |
101 | GPIO96_RX_DQ3, | |
102 | GPIO97_RX_DQ2, | |
103 | GPIO98_RX_DQ1, | |
104 | GPIO99_RX_DQ0, | |
105 | GPIO100_MII_MDC, | |
106 | GPIO101_MII_MDIO, | |
107 | GPIO103_RX_DV, | |
108 | GPIO104_GPIO, /* Reset PHY */ | |
109 | ||
110 | /* RTC interrupt */ | |
111 | GPIO102_GPIO, | |
112 | ||
113 | /* I2C */ | |
114 | GPIO105_CI2C_SDA, | |
115 | GPIO106_CI2C_SCL, | |
116 | ||
3647a40f TU |
117 | /* SPI NOR Flash on SSP2 */ |
118 | GPIO107_SSP2_RXD, | |
119 | GPIO108_SSP2_TXD, | |
120 | GPIO110_GPIO, /* SPI_CSn */ | |
121 | GPIO111_SSP2_CLK, | |
122 | ||
f16e05c7 TU |
123 | /* Select JTAG */ |
124 | GPIO109_GPIO, | |
125 | ||
126 | /* I2S */ | |
127 | GPIO114_I2S_FRM, | |
128 | GPIO115_I2S_BCLK, | |
129 | GPIO116_I2S_TXD | |
130 | }; | |
131 | ||
b8f649f1 HZ |
132 | static struct pxa_gpio_platform_data pxa168_gpio_pdata = { |
133 | .irq_base = MMP_GPIO_TO_IRQ(0), | |
134 | }; | |
135 | ||
f16e05c7 TU |
136 | static struct i2c_board_info gplugd_i2c_board_info[] = { |
137 | { | |
138 | .type = "isl1208", | |
139 | .addr = 0x6F, | |
140 | } | |
141 | }; | |
142 | ||
143 | /* Bring PHY out of reset by setting GPIO 104 */ | |
144 | static int gplugd_eth_init(void) | |
145 | { | |
146 | if (unlikely(gpio_request(104, "ETH_RESET_N"))) { | |
147 | printk(KERN_ERR "Can't get hold of GPIO 104 to bring Ethernet " | |
148 | "PHY out of reset\n"); | |
149 | return -EIO; | |
150 | } | |
151 | ||
152 | gpio_direction_output(104, 1); | |
153 | gpio_free(104); | |
154 | return 0; | |
155 | } | |
156 | ||
157 | struct pxa168_eth_platform_data gplugd_eth_platform_data = { | |
158 | .port_number = 0, | |
159 | .phy_addr = 0, | |
160 | .speed = 0, /* Autonagotiation */ | |
e7de17ab | 161 | .intf = PHY_INTERFACE_MODE_RMII, |
f16e05c7 TU |
162 | .init = gplugd_eth_init, |
163 | }; | |
164 | ||
165 | static void __init select_disp_freq(void) | |
166 | { | |
167 | /* set GPIO 35 & clear GPIO 85 to set LCD External Clock to 74.25 MHz */ | |
168 | if (unlikely(gpio_request(35, "DISP_FREQ_SEL"))) { | |
169 | printk(KERN_ERR "Can't get hold of GPIO 35 to select display " | |
170 | "frequency\n"); | |
171 | } else { | |
172 | gpio_direction_output(35, 1); | |
4c22ea8f | 173 | gpio_free(35); |
f16e05c7 TU |
174 | } |
175 | ||
176 | if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) { | |
177 | printk(KERN_ERR "Can't get hold of GPIO 85 to select display " | |
178 | "frequency\n"); | |
179 | } else { | |
180 | gpio_direction_output(85, 0); | |
4c22ea8f | 181 | gpio_free(85); |
f16e05c7 TU |
182 | } |
183 | } | |
184 | ||
185 | static void __init gplugd_init(void) | |
186 | { | |
187 | mfp_config(ARRAY_AND_SIZE(gplugd_pin_config)); | |
188 | ||
189 | select_disp_freq(); | |
190 | ||
191 | /* on-chip devices */ | |
192 | pxa168_add_uart(3); | |
e4b3bbe3 | 193 | pxa168_add_ssp(1); |
f16e05c7 | 194 | pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info)); |
b8f649f1 HZ |
195 | platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata, |
196 | sizeof(struct pxa_gpio_platform_data)); | |
157d2644 | 197 | platform_device_register(&pxa168_device_gpio); |
f16e05c7 TU |
198 | |
199 | pxa168_add_eth(&gplugd_eth_platform_data); | |
200 | } | |
201 | ||
c149f6c8 | 202 | MACHINE_START(GPLUGD, "PXA168-based GuruPlug Display (gplugD) Platform") |
f16e05c7 | 203 | .map_io = mmp_map_io, |
8661fb92 | 204 | .nr_irqs = MMP_NR_IRQS, |
f16e05c7 | 205 | .init_irq = pxa168_init_irq, |
6bb27d73 | 206 | .init_time = pxa168_timer_init, |
f16e05c7 | 207 | .init_machine = gplugd_init, |
9854a38e | 208 | .restart = pxa168_restart, |
f16e05c7 | 209 | MACHINE_END |