Merge branches 'depends/rmk/io', 'depends/rmk/l2x0' and 'depends/rmk/gpio' into highb...
[linux-2.6.git] / arch / arm / mach-mmp / gplugd.c
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>
12 #include <linux/gpio.h>
13
14 #include <asm/mach/arch.h>
15 #include <asm/mach-types.h>
16
17 #include <mach/pxa168.h>
18 #include <mach/mfp-pxa168.h>
19
20 #include "common.h"
21
22 static unsigned long gplugd_pin_config[] __initdata = {
23         /* UART3 */
24         GPIO8_UART3_TXD,
25         GPIO9_UART3_RXD,
26         GPIO1O_UART3_CTS,
27         GPIO11_UART3_RTS,
28
29         /* USB OTG PEN */
30         GPIO18_GPIO,
31
32         /* MMC2 */
33         GPIO28_MMC2_CMD,
34         GPIO29_MMC2_CLK,
35         GPIO30_MMC2_DAT0,
36         GPIO31_MMC2_DAT1,
37         GPIO32_MMC2_DAT2,
38         GPIO33_MMC2_DAT3,
39
40         /* LCD & HDMI clock selection GPIO: 0: 74.176MHz, 1: 74.25 MHz */
41         GPIO35_GPIO,
42         GPIO36_GPIO, /* CEC Interrupt */
43
44         /* MMC1 */
45         GPIO43_MMC1_CLK,
46         GPIO49_MMC1_CMD,
47         GPIO41_MMC1_DAT0,
48         GPIO40_MMC1_DAT1,
49         GPIO52_MMC1_DAT2,
50         GPIO51_MMC1_DAT3,
51         GPIO53_MMC1_CD,
52
53         /* LCD */
54         GPIO56_LCD_FCLK_RD,
55         GPIO57_LCD_LCLK_A0,
56         GPIO58_LCD_PCLK_WR,
57         GPIO59_LCD_DENA_BIAS,
58         GPIO60_LCD_DD0,
59         GPIO61_LCD_DD1,
60         GPIO62_LCD_DD2,
61         GPIO63_LCD_DD3,
62         GPIO64_LCD_DD4,
63         GPIO65_LCD_DD5,
64         GPIO66_LCD_DD6,
65         GPIO67_LCD_DD7,
66         GPIO68_LCD_DD8,
67         GPIO69_LCD_DD9,
68         GPIO70_LCD_DD10,
69         GPIO71_LCD_DD11,
70         GPIO72_LCD_DD12,
71         GPIO73_LCD_DD13,
72         GPIO74_LCD_DD14,
73         GPIO75_LCD_DD15,
74         GPIO76_LCD_DD16,
75         GPIO77_LCD_DD17,
76         GPIO78_LCD_DD18,
77         GPIO79_LCD_DD19,
78         GPIO80_LCD_DD20,
79         GPIO81_LCD_DD21,
80         GPIO82_LCD_DD22,
81         GPIO83_LCD_DD23,
82
83         /* GPIO */
84         GPIO84_GPIO,
85         GPIO85_GPIO,
86
87         /* Fast-Ethernet*/
88         GPIO86_TX_CLK,
89         GPIO87_TX_EN,
90         GPIO88_TX_DQ3,
91         GPIO89_TX_DQ2,
92         GPIO90_TX_DQ1,
93         GPIO91_TX_DQ0,
94         GPIO92_MII_CRS,
95         GPIO93_MII_COL,
96         GPIO94_RX_CLK,
97         GPIO95_RX_ER,
98         GPIO96_RX_DQ3,
99         GPIO97_RX_DQ2,
100         GPIO98_RX_DQ1,
101         GPIO99_RX_DQ0,
102         GPIO100_MII_MDC,
103         GPIO101_MII_MDIO,
104         GPIO103_RX_DV,
105         GPIO104_GPIO,     /* Reset PHY */
106
107         /* RTC interrupt */
108         GPIO102_GPIO,
109
110         /* I2C */
111         GPIO105_CI2C_SDA,
112         GPIO106_CI2C_SCL,
113
114         /* SPI NOR Flash on SSP2 */
115         GPIO107_SSP2_RXD,
116         GPIO108_SSP2_TXD,
117         GPIO110_GPIO,     /* SPI_CSn */
118         GPIO111_SSP2_CLK,
119
120         /* Select JTAG */
121         GPIO109_GPIO,
122
123         /* I2S */
124         GPIO114_I2S_FRM,
125         GPIO115_I2S_BCLK,
126         GPIO116_I2S_TXD
127 };
128
129 static struct i2c_board_info gplugd_i2c_board_info[] = {
130         {
131                 .type = "isl1208",
132                 .addr = 0x6F,
133         }
134 };
135
136 /* Bring PHY out of reset by setting GPIO 104 */
137 static int gplugd_eth_init(void)
138 {
139         if (unlikely(gpio_request(104, "ETH_RESET_N"))) {
140                 printk(KERN_ERR "Can't get hold of GPIO 104 to bring Ethernet "
141                                 "PHY out of reset\n");
142                 return -EIO;
143         }
144
145         gpio_direction_output(104, 1);
146         gpio_free(104);
147         return 0;
148 }
149
150 struct pxa168_eth_platform_data gplugd_eth_platform_data = {
151         .port_number = 0,
152         .phy_addr    = 0,
153         .speed       = 0, /* Autonagotiation */
154         .init        = gplugd_eth_init,
155 };
156
157 static void __init select_disp_freq(void)
158 {
159         /* set GPIO 35 & clear GPIO 85 to set LCD External Clock to 74.25 MHz */
160         if (unlikely(gpio_request(35, "DISP_FREQ_SEL"))) {
161                 printk(KERN_ERR "Can't get hold of GPIO 35 to select display "
162                                 "frequency\n");
163         } else {
164                 gpio_direction_output(35, 1);
165                 gpio_free(35);
166         }
167
168         if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) {
169                 printk(KERN_ERR "Can't get hold of GPIO 85 to select display "
170                                 "frequency\n");
171         } else {
172                 gpio_direction_output(85, 0);
173                 gpio_free(85);
174         }
175 }
176
177 static void __init gplugd_init(void)
178 {
179         mfp_config(ARRAY_AND_SIZE(gplugd_pin_config));
180
181         select_disp_freq();
182
183         /* on-chip devices */
184         pxa168_add_uart(3);
185         pxa168_add_ssp(0);
186         pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
187
188         pxa168_add_eth(&gplugd_eth_platform_data);
189 }
190
191 MACHINE_START(SHEEVAD, "PXA168-based GuruPlug Display (gplugD) Platform")
192         .map_io         = mmp_map_io,
193         .nr_irqs        = IRQ_BOARD_START,
194         .init_irq       = pxa168_init_irq,
195         .timer          = &pxa168_timer,
196         .init_machine   = gplugd_init,
197 MACHINE_END