1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * arch/arm/mach-ep93xx/simone.c
4*4882a593Smuzhiyun * Simplemachines Sim.One support.
5*4882a593Smuzhiyun *
6*4882a593Smuzhiyun * Copyright (C) 2010 Ryan Mallon
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Based on the 2.6.24.7 support:
9*4882a593Smuzhiyun * Copyright (C) 2009 Simplemachines
10*4882a593Smuzhiyun * MMC support by Peter Ivanov <ivanovp@gmail.com>, 2007
11*4882a593Smuzhiyun */
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <linux/kernel.h>
14*4882a593Smuzhiyun #include <linux/init.h>
15*4882a593Smuzhiyun #include <linux/platform_device.h>
16*4882a593Smuzhiyun #include <linux/i2c.h>
17*4882a593Smuzhiyun #include <linux/mmc/host.h>
18*4882a593Smuzhiyun #include <linux/spi/spi.h>
19*4882a593Smuzhiyun #include <linux/spi/mmc_spi.h>
20*4882a593Smuzhiyun #include <linux/platform_data/video-ep93xx.h>
21*4882a593Smuzhiyun #include <linux/platform_data/spi-ep93xx.h>
22*4882a593Smuzhiyun #include <linux/gpio.h>
23*4882a593Smuzhiyun #include <linux/gpio/machine.h>
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun #include "hardware.h"
26*4882a593Smuzhiyun #include "gpio-ep93xx.h"
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun #include <asm/mach-types.h>
29*4882a593Smuzhiyun #include <asm/mach/arch.h>
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun #include "soc.h"
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun static struct ep93xx_eth_data __initdata simone_eth_data = {
34*4882a593Smuzhiyun .phy_id = 1,
35*4882a593Smuzhiyun };
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun static struct ep93xxfb_mach_info __initdata simone_fb_info = {
38*4882a593Smuzhiyun .flags = EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
39*4882a593Smuzhiyun };
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun static struct mmc_spi_platform_data simone_mmc_spi_data = {
42*4882a593Smuzhiyun .detect_delay = 500,
43*4882a593Smuzhiyun .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
44*4882a593Smuzhiyun };
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun static struct gpiod_lookup_table simone_mmc_spi_gpio_table = {
47*4882a593Smuzhiyun .dev_id = "mmc_spi.0", /* "mmc_spi" @ CS0 */
48*4882a593Smuzhiyun .table = {
49*4882a593Smuzhiyun /* Card detect */
50*4882a593Smuzhiyun GPIO_LOOKUP_IDX("A", 0, NULL, 0, GPIO_ACTIVE_LOW),
51*4882a593Smuzhiyun { },
52*4882a593Smuzhiyun },
53*4882a593Smuzhiyun };
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun static struct spi_board_info simone_spi_devices[] __initdata = {
56*4882a593Smuzhiyun {
57*4882a593Smuzhiyun .modalias = "mmc_spi",
58*4882a593Smuzhiyun .platform_data = &simone_mmc_spi_data,
59*4882a593Smuzhiyun /*
60*4882a593Smuzhiyun * We use 10 MHz even though the maximum is 3.7 MHz. The driver
61*4882a593Smuzhiyun * will limit it automatically to max. frequency.
62*4882a593Smuzhiyun */
63*4882a593Smuzhiyun .max_speed_hz = 10 * 1000 * 1000,
64*4882a593Smuzhiyun .bus_num = 0,
65*4882a593Smuzhiyun .chip_select = 0,
66*4882a593Smuzhiyun .mode = SPI_MODE_3,
67*4882a593Smuzhiyun },
68*4882a593Smuzhiyun };
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun /*
71*4882a593Smuzhiyun * Up to v1.3, the Sim.One used SFRMOUT as SD card chip select, but this goes
72*4882a593Smuzhiyun * low between multi-message command blocks. From v1.4, it uses a GPIO instead.
73*4882a593Smuzhiyun * v1.3 parts will still work, since the signal on SFRMOUT is automatic.
74*4882a593Smuzhiyun */
75*4882a593Smuzhiyun static struct gpiod_lookup_table simone_spi_cs_gpio_table = {
76*4882a593Smuzhiyun .dev_id = "spi0",
77*4882a593Smuzhiyun .table = {
78*4882a593Smuzhiyun GPIO_LOOKUP("A", 1, "cs", GPIO_ACTIVE_LOW),
79*4882a593Smuzhiyun { },
80*4882a593Smuzhiyun },
81*4882a593Smuzhiyun };
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun static struct ep93xx_spi_info simone_spi_info __initdata = {
84*4882a593Smuzhiyun .use_dma = 1,
85*4882a593Smuzhiyun };
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun static struct i2c_board_info __initdata simone_i2c_board_info[] = {
88*4882a593Smuzhiyun {
89*4882a593Smuzhiyun I2C_BOARD_INFO("ds1337", 0x68),
90*4882a593Smuzhiyun },
91*4882a593Smuzhiyun };
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun static struct platform_device simone_audio_device = {
94*4882a593Smuzhiyun .name = "simone-audio",
95*4882a593Smuzhiyun .id = -1,
96*4882a593Smuzhiyun };
97*4882a593Smuzhiyun
simone_register_audio(void)98*4882a593Smuzhiyun static void __init simone_register_audio(void)
99*4882a593Smuzhiyun {
100*4882a593Smuzhiyun ep93xx_register_ac97();
101*4882a593Smuzhiyun platform_device_register(&simone_audio_device);
102*4882a593Smuzhiyun }
103*4882a593Smuzhiyun
simone_init_machine(void)104*4882a593Smuzhiyun static void __init simone_init_machine(void)
105*4882a593Smuzhiyun {
106*4882a593Smuzhiyun ep93xx_init_devices();
107*4882a593Smuzhiyun ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_8M);
108*4882a593Smuzhiyun ep93xx_register_eth(&simone_eth_data, 1);
109*4882a593Smuzhiyun ep93xx_register_fb(&simone_fb_info);
110*4882a593Smuzhiyun ep93xx_register_i2c(simone_i2c_board_info,
111*4882a593Smuzhiyun ARRAY_SIZE(simone_i2c_board_info));
112*4882a593Smuzhiyun gpiod_add_lookup_table(&simone_mmc_spi_gpio_table);
113*4882a593Smuzhiyun gpiod_add_lookup_table(&simone_spi_cs_gpio_table);
114*4882a593Smuzhiyun ep93xx_register_spi(&simone_spi_info, simone_spi_devices,
115*4882a593Smuzhiyun ARRAY_SIZE(simone_spi_devices));
116*4882a593Smuzhiyun simone_register_audio();
117*4882a593Smuzhiyun }
118*4882a593Smuzhiyun
119*4882a593Smuzhiyun MACHINE_START(SIM_ONE, "Simplemachines Sim.One Board")
120*4882a593Smuzhiyun /* Maintainer: Ryan Mallon */
121*4882a593Smuzhiyun .atag_offset = 0x100,
122*4882a593Smuzhiyun .map_io = ep93xx_map_io,
123*4882a593Smuzhiyun .init_irq = ep93xx_init_irq,
124*4882a593Smuzhiyun .init_time = ep93xx_timer_init,
125*4882a593Smuzhiyun .init_machine = simone_init_machine,
126*4882a593Smuzhiyun .init_late = ep93xx_init_late,
127*4882a593Smuzhiyun .restart = ep93xx_restart,
128*4882a593Smuzhiyun MACHINE_END
129