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1d0ea069 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f16e05c7 TU |
2 | /* |
3 | * linux/arch/arm/mach-mmp/gplugd.c | |
4 | * | |
5 | * Support for the Marvell PXA168-based GuruPlug Display (gplugD) Platform. | |
f16e05c7 TU |
6 | */ |
7 | ||
8 | #include <linux/init.h> | |
e71dc5f7 | 9 | #include <linux/platform_device.h> |
f55be1bf | 10 | #include <linux/gpio.h> |
b8f649f1 | 11 | #include <linux/gpio-pxa.h> |
f16e05c7 TU |
12 | |
13 | #include <asm/mach/arch.h> | |
14 | #include <asm/mach-types.h> | |
15 | ||
b501fd7b AB |
16 | #include "irqs.h" |
17 | #include "pxa168.h" | |
18 | #include "mfp-pxa168.h" | |
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19 | |
20 | #include "common.h" | |
21 | ||
22 | static unsigned long gplugd_pin_config[] __initdata = { | |
23 | /* UART3 */ | |
3647a40f TU |
24 | GPIO8_UART3_TXD, |
25 | GPIO9_UART3_RXD, | |
26 | GPIO1O_UART3_CTS, | |
27 | GPIO11_UART3_RTS, | |
28 | ||
29 | /* USB OTG PEN */ | |
30 | GPIO18_GPIO, | |
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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 | ||
3647a40f TU |
114 | /* SPI NOR Flash on SSP2 */ |
115 | GPIO107_SSP2_RXD, | |
116 | GPIO108_SSP2_TXD, | |
117 | GPIO110_GPIO, /* SPI_CSn */ | |
118 | GPIO111_SSP2_CLK, | |
119 | ||
f16e05c7 TU |
120 | /* Select JTAG */ |
121 | GPIO109_GPIO, | |
122 | ||
123 | /* I2S */ | |
124 | GPIO114_I2S_FRM, | |
125 | GPIO115_I2S_BCLK, | |
126 | GPIO116_I2S_TXD | |
127 | }; | |
128 | ||
b8f649f1 HZ |
129 | static struct pxa_gpio_platform_data pxa168_gpio_pdata = { |
130 | .irq_base = MMP_GPIO_TO_IRQ(0), | |
131 | }; | |
132 | ||
f16e05c7 TU |
133 | static struct i2c_board_info gplugd_i2c_board_info[] = { |
134 | { | |
135 | .type = "isl1208", | |
136 | .addr = 0x6F, | |
137 | } | |
138 | }; | |
139 | ||
140 | /* Bring PHY out of reset by setting GPIO 104 */ | |
141 | static int gplugd_eth_init(void) | |
142 | { | |
143 | if (unlikely(gpio_request(104, "ETH_RESET_N"))) { | |
144 | printk(KERN_ERR "Can't get hold of GPIO 104 to bring Ethernet " | |
145 | "PHY out of reset\n"); | |
146 | return -EIO; | |
147 | } | |
148 | ||
149 | gpio_direction_output(104, 1); | |
150 | gpio_free(104); | |
151 | return 0; | |
152 | } | |
153 | ||
154 | struct pxa168_eth_platform_data gplugd_eth_platform_data = { | |
155 | .port_number = 0, | |
156 | .phy_addr = 0, | |
157 | .speed = 0, /* Autonagotiation */ | |
e7de17ab | 158 | .intf = PHY_INTERFACE_MODE_RMII, |
f16e05c7 TU |
159 | .init = gplugd_eth_init, |
160 | }; | |
161 | ||
162 | static void __init select_disp_freq(void) | |
163 | { | |
164 | /* set GPIO 35 & clear GPIO 85 to set LCD External Clock to 74.25 MHz */ | |
165 | if (unlikely(gpio_request(35, "DISP_FREQ_SEL"))) { | |
166 | printk(KERN_ERR "Can't get hold of GPIO 35 to select display " | |
167 | "frequency\n"); | |
168 | } else { | |
169 | gpio_direction_output(35, 1); | |
4c22ea8f | 170 | gpio_free(35); |
f16e05c7 TU |
171 | } |
172 | ||
173 | if (unlikely(gpio_request(85, "DISP_FREQ_SEL_2"))) { | |
174 | printk(KERN_ERR "Can't get hold of GPIO 85 to select display " | |
175 | "frequency\n"); | |
176 | } else { | |
177 | gpio_direction_output(85, 0); | |
4c22ea8f | 178 | gpio_free(85); |
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179 | } |
180 | } | |
181 | ||
182 | static void __init gplugd_init(void) | |
183 | { | |
184 | mfp_config(ARRAY_AND_SIZE(gplugd_pin_config)); | |
185 | ||
186 | select_disp_freq(); | |
187 | ||
188 | /* on-chip devices */ | |
189 | pxa168_add_uart(3); | |
e4b3bbe3 | 190 | pxa168_add_ssp(1); |
f16e05c7 | 191 | pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info)); |
b8f649f1 HZ |
192 | platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata, |
193 | sizeof(struct pxa_gpio_platform_data)); | |
157d2644 | 194 | platform_device_register(&pxa168_device_gpio); |
f16e05c7 TU |
195 | |
196 | pxa168_add_eth(&gplugd_eth_platform_data); | |
197 | } | |
198 | ||
c149f6c8 | 199 | MACHINE_START(GPLUGD, "PXA168-based GuruPlug Display (gplugD) Platform") |
f16e05c7 | 200 | .map_io = mmp_map_io, |
8661fb92 | 201 | .nr_irqs = MMP_NR_IRQS, |
f16e05c7 | 202 | .init_irq = pxa168_init_irq, |
6bb27d73 | 203 | .init_time = pxa168_timer_init, |
f16e05c7 | 204 | .init_machine = gplugd_init, |
9854a38e | 205 | .restart = pxa168_restart, |
f16e05c7 | 206 | MACHINE_END |