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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
a3662f6b RM |
2 | /* |
3 | * arch/arm/mach-ep93xx/simone.c | |
4 | * Simplemachines Sim.One support. | |
5 | * | |
1c5454ee | 6 | * Copyright (C) 2010 Ryan Mallon |
a3662f6b RM |
7 | * |
8 | * Based on the 2.6.24.7 support: | |
9 | * Copyright (C) 2009 Simplemachines | |
10 | * MMC support by Peter Ivanov <ivanovp@gmail.com>, 2007 | |
a3662f6b RM |
11 | */ |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/platform_device.h> | |
a3662f6b | 16 | #include <linux/i2c.h> |
d50bfa47 MW |
17 | #include <linux/mmc/host.h> |
18 | #include <linux/spi/spi.h> | |
19 | #include <linux/spi/mmc_spi.h> | |
20 | #include <linux/platform_data/video-ep93xx.h> | |
21 | #include <linux/platform_data/spi-ep93xx.h> | |
22 | #include <linux/gpio.h> | |
5716fb9b | 23 | #include <linux/gpio/machine.h> |
a3662f6b | 24 | |
5b7cc904 AB |
25 | #include "hardware.h" |
26 | #include "gpio-ep93xx.h" | |
a3662f6b RM |
27 | |
28 | #include <asm/mach-types.h> | |
29 | #include <asm/mach/arch.h> | |
30 | ||
258249ec RM |
31 | #include "soc.h" |
32 | ||
b370e082 | 33 | static struct ep93xx_eth_data __initdata simone_eth_data = { |
a3662f6b RM |
34 | .phy_id = 1, |
35 | }; | |
36 | ||
b370e082 | 37 | static struct ep93xxfb_mach_info __initdata simone_fb_info = { |
a3662f6b RM |
38 | .flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING, |
39 | }; | |
40 | ||
d50bfa47 | 41 | static struct mmc_spi_platform_data simone_mmc_spi_data = { |
d50bfa47 MW |
42 | .detect_delay = 500, |
43 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, | |
5716fb9b LW |
44 | }; |
45 | ||
46 | static struct gpiod_lookup_table simone_mmc_spi_gpio_table = { | |
47 | .dev_id = "mmc_spi.0", /* "mmc_spi" @ CS0 */ | |
48 | .table = { | |
49 | /* Card detect */ | |
50 | GPIO_LOOKUP_IDX("A", 0, NULL, 0, GPIO_ACTIVE_LOW), | |
51 | { }, | |
52 | }, | |
d50bfa47 MW |
53 | }; |
54 | ||
55 | static struct spi_board_info simone_spi_devices[] __initdata = { | |
56 | { | |
57 | .modalias = "mmc_spi", | |
d50bfa47 MW |
58 | .platform_data = &simone_mmc_spi_data, |
59 | /* | |
60 | * We use 10 MHz even though the maximum is 3.7 MHz. The driver | |
61 | * will limit it automatically to max. frequency. | |
62 | */ | |
63 | .max_speed_hz = 10 * 1000 * 1000, | |
64 | .bus_num = 0, | |
65 | .chip_select = 0, | |
66 | .mode = SPI_MODE_3, | |
67 | }, | |
68 | }; | |
69 | ||
55f0cd3f HS |
70 | /* |
71 | * Up to v1.3, the Sim.One used SFRMOUT as SD card chip select, but this goes | |
72 | * low between multi-message command blocks. From v1.4, it uses a GPIO instead. | |
73 | * v1.3 parts will still work, since the signal on SFRMOUT is automatic. | |
74 | */ | |
1dfbf334 | 75 | static struct gpiod_lookup_table simone_spi_cs_gpio_table = { |
95406ce0 | 76 | .dev_id = "spi0", |
1dfbf334 LW |
77 | .table = { |
78 | GPIO_LOOKUP("A", 1, "cs", GPIO_ACTIVE_LOW), | |
79 | { }, | |
80 | }, | |
55f0cd3f HS |
81 | }; |
82 | ||
d50bfa47 | 83 | static struct ep93xx_spi_info simone_spi_info __initdata = { |
109965a3 | 84 | .use_dma = 1, |
d50bfa47 MW |
85 | }; |
86 | ||
a3662f6b RM |
87 | static struct i2c_board_info __initdata simone_i2c_board_info[] = { |
88 | { | |
89 | I2C_BOARD_INFO("ds1337", 0x68), | |
90 | }, | |
91 | }; | |
92 | ||
e5063fe8 MW |
93 | static struct platform_device simone_audio_device = { |
94 | .name = "simone-audio", | |
95 | .id = -1, | |
96 | }; | |
97 | ||
98 | static void __init simone_register_audio(void) | |
99 | { | |
100 | ep93xx_register_ac97(); | |
101 | platform_device_register(&simone_audio_device); | |
102 | } | |
103 | ||
a3662f6b RM |
104 | static void __init simone_init_machine(void) |
105 | { | |
106 | ep93xx_init_devices(); | |
16bcf78f | 107 | ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M); |
a3662f6b RM |
108 | ep93xx_register_eth(&simone_eth_data, 1); |
109 | ep93xx_register_fb(&simone_fb_info); | |
b2e63555 | 110 | ep93xx_register_i2c(simone_i2c_board_info, |
a3662f6b | 111 | ARRAY_SIZE(simone_i2c_board_info)); |
5716fb9b | 112 | gpiod_add_lookup_table(&simone_mmc_spi_gpio_table); |
1dfbf334 | 113 | gpiod_add_lookup_table(&simone_spi_cs_gpio_table); |
d50bfa47 MW |
114 | ep93xx_register_spi(&simone_spi_info, simone_spi_devices, |
115 | ARRAY_SIZE(simone_spi_devices)); | |
e5063fe8 | 116 | simone_register_audio(); |
a3662f6b RM |
117 | } |
118 | ||
119 | MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board") | |
e562cf17 NP |
120 | /* Maintainer: Ryan Mallon */ |
121 | .atag_offset = 0x100, | |
a3662f6b RM |
122 | .map_io = ep93xx_map_io, |
123 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 124 | .init_time = ep93xx_timer_init, |
a3662f6b | 125 | .init_machine = simone_init_machine, |
c914283f | 126 | .init_late = ep93xx_init_late, |
3275166e | 127 | .restart = ep93xx_restart, |
a3662f6b | 128 | MACHINE_END |