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gerrit-public.fairphone.software / kernel / msm-4.9 / 033d9959ed2dc1029217d4165f80a71702dc578e / . / arch / arm / mach-mmp / gplugd.c
blob: 5c3d61ee729a79486a7d2f19f564a774ce64c335 [file] [log] [blame]
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]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>
Linus Walleijf55be1b2011-09-28 09:11:30 +0100[diff] [blame]12#include <linux/gpio.h>
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]13
14#include <asm/mach/arch.h>
15#include <asm/mach-types.h>
16
Haojian Zhuangbac6f612012-07-30 22:20:34 +0800[diff] [blame]17#include <mach/irqs.h>
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]18#include <mach/pxa168.h>
19#include <mach/mfp-pxa168.h>
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]20
21#include "common.h"
22
23static unsigned long gplugd_pin_config[] __initdata = {
24 /* UART3 */
Tanmay Upadhyay3647a402011-07-14 15:07:15 +0530[diff] [blame]25 GPIO8_UART3_TXD,
26 GPIO9_UART3_RXD,
27 GPIO1O_UART3_CTS,
28 GPIO11_UART3_RTS,
29
30 /* USB OTG PEN */
31 GPIO18_GPIO,
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]32
33 /* MMC2 */
34 GPIO28_MMC2_CMD,
35 GPIO29_MMC2_CLK,
36 GPIO30_MMC2_DAT0,
37 GPIO31_MMC2_DAT1,
38 GPIO32_MMC2_DAT2,
39 GPIO33_MMC2_DAT3,
40
41 /* LCD & HDMI clock selection GPIO: 0: 74.176MHz, 1: 74.25 MHz */
42 GPIO35_GPIO,
43 GPIO36_GPIO, /* CEC Interrupt */
44
45 /* MMC1 */
46 GPIO43_MMC1_CLK,
47 GPIO49_MMC1_CMD,
48 GPIO41_MMC1_DAT0,
49 GPIO40_MMC1_DAT1,
50 GPIO52_MMC1_DAT2,
51 GPIO51_MMC1_DAT3,
52 GPIO53_MMC1_CD,
53
54 /* LCD */
55 GPIO56_LCD_FCLK_RD,
56 GPIO57_LCD_LCLK_A0,
57 GPIO58_LCD_PCLK_WR,
58 GPIO59_LCD_DENA_BIAS,
59 GPIO60_LCD_DD0,
60 GPIO61_LCD_DD1,
61 GPIO62_LCD_DD2,
62 GPIO63_LCD_DD3,
63 GPIO64_LCD_DD4,
64 GPIO65_LCD_DD5,
65 GPIO66_LCD_DD6,
66 GPIO67_LCD_DD7,
67 GPIO68_LCD_DD8,
68 GPIO69_LCD_DD9,
69 GPIO70_LCD_DD10,
70 GPIO71_LCD_DD11,
71 GPIO72_LCD_DD12,
72 GPIO73_LCD_DD13,
73 GPIO74_LCD_DD14,
74 GPIO75_LCD_DD15,
75 GPIO76_LCD_DD16,
76 GPIO77_LCD_DD17,
77 GPIO78_LCD_DD18,
78 GPIO79_LCD_DD19,
79 GPIO80_LCD_DD20,
80 GPIO81_LCD_DD21,
81 GPIO82_LCD_DD22,
82 GPIO83_LCD_DD23,
83
84 /* GPIO */
85 GPIO84_GPIO,
86 GPIO85_GPIO,
87
88 /* Fast-Ethernet*/
89 GPIO86_TX_CLK,
90 GPIO87_TX_EN,
91 GPIO88_TX_DQ3,
92 GPIO89_TX_DQ2,
93 GPIO90_TX_DQ1,
94 GPIO91_TX_DQ0,
95 GPIO92_MII_CRS,
96 GPIO93_MII_COL,
97 GPIO94_RX_CLK,
98 GPIO95_RX_ER,
99 GPIO96_RX_DQ3,
100 GPIO97_RX_DQ2,
101 GPIO98_RX_DQ1,
102 GPIO99_RX_DQ0,
103 GPIO100_MII_MDC,
104 GPIO101_MII_MDIO,
105 GPIO103_RX_DV,
106 GPIO104_GPIO, /* Reset PHY */
107
108 /* RTC interrupt */
109 GPIO102_GPIO,
110
111 /* I2C */
112 GPIO105_CI2C_SDA,
113 GPIO106_CI2C_SCL,
114
Tanmay Upadhyay3647a402011-07-14 15:07:15 +0530[diff] [blame]115 /* SPI NOR Flash on SSP2 */
116 GPIO107_SSP2_RXD,
117 GPIO108_SSP2_TXD,
118 GPIO110_GPIO, /* SPI_CSn */
119 GPIO111_SSP2_CLK,
120
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]121 /* Select JTAG */
122 GPIO109_GPIO,
123
124 /* I2S */
125 GPIO114_I2S_FRM,
126 GPIO115_I2S_BCLK,
127 GPIO116_I2S_TXD
128};
129
130static struct i2c_board_info gplugd_i2c_board_info[] = {
131 {
132 .type = "isl1208",
133 .addr = 0x6F,
134 }
135};
136
137/* Bring PHY out of reset by setting GPIO 104 */
138static int gplugd_eth_init(void)
139{
140 if (unlikely(gpio_request(104, "ETH_RESET_N"))) {
141 printk(KERN_ERR "Can't get hold of GPIO 104 to bring Ethernet "
142 "PHY out of reset\n");
143 return -EIO;
144 }
145
146 gpio_direction_output(104, 1);
147 gpio_free(104);
148 return 0;
149}
150
151struct pxa168_eth_platform_data gplugd_eth_platform_data = {
152 .port_number = 0,
153 .phy_addr = 0,
154 .speed = 0, /* Autonagotiation */
155 .init = gplugd_eth_init,
156};
157
158static void __init select_disp_freq(void)
159{
160 /* set GPIO 35 & clear GPIO 85 to set LCD External Clock to 74.25 MHz */
161 if (unlikely(gpio_request(35, "DISP_FREQ_SEL"))) {
162 printk(KERN_ERR "Can't get hold of GPIO 35 to select display "
163 "frequency\n");
164 } else {
165 gpio_direction_output(35, 1);
Tanmay Upadhyay4c22ea82011-07-14 15:07:16 +0530[diff] [blame]166 gpio_free(35);
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]167 }
168
169 if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) {
170 printk(KERN_ERR "Can't get hold of GPIO 85 to select display "
171 "frequency\n");
172 } else {
173 gpio_direction_output(85, 0);
Tanmay Upadhyay4c22ea82011-07-14 15:07:16 +0530[diff] [blame]174 gpio_free(85);
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]175 }
176}
177
178static void __init gplugd_init(void)
179{
180 mfp_config(ARRAY_AND_SIZE(gplugd_pin_config));
181
182 select_disp_freq();
183
184 /* on-chip devices */
185 pxa168_add_uart(3);
Eric Miaoe4b3bbe2011-11-11 20:11:14 +0800[diff] [blame]186 pxa168_add_ssp(1);
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]187 pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
Haojian Zhuang157d2642011-10-17 20:37:52 +0800[diff] [blame]188 platform_device_register(&pxa168_device_gpio);
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]189
190 pxa168_add_eth(&gplugd_eth_platform_data);
191}
192
Eric Miaoc149f6c2011-08-16 12:28:57 +0800[diff] [blame]193MACHINE_START(GPLUGD, "PXA168-based GuruPlug Display (gplugD) Platform")
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]194 .map_io = mmp_map_io,
Rob Herring8661fb92012-01-03 16:50:40 -0600[diff] [blame]195 .nr_irqs = MMP_NR_IRQS,
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]196 .init_irq = pxa168_init_irq,
197 .timer = &pxa168_timer,
198 .init_machine = gplugd_init,
Russell King9854a382011-11-05 15:40:09 +0000[diff] [blame]199 .restart = pxa168_restart,
Tanmay Upadhyayf16e05c2011-05-02 11:30:00 +0530[diff] [blame]200MACHINE_END