2 * Copyright (C) 2008-2009 ST-Ericsson
4 * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
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 * published by the Free Software Foundation.
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/interrupt.h>
14 #include <linux/platform_device.h>
16 #include <linux/i2c.h>
17 #include <linux/gpio.h>
18 #include <linux/amba/bus.h>
19 #include <linux/amba/pl022.h>
20 #include <linux/spi/spi.h>
21 #include <linux/mfd/ab8500.h>
22 #include <linux/mfd/tc35892.h>
23 #include <linux/input/matrix_keypad.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
28 #include <plat/pincfg.h>
32 #include <mach/hardware.h>
33 #include <mach/setup.h>
34 #include <mach/devices.h>
35 #include <mach/irqs.h>
37 #include "pins-db8500.h"
38 #include "board-mop500.h"
40 static pin_cfg_t mop500_pins[] = {
75 GPIO217_GPIO, /* GPIO_EXP_INT */
78 static void ab4500_spi_cs_control(u32 command)
80 /* set the FRM signal, which is CS - TODO */
83 struct pl022_config_chip ab4500_chip_info = {
84 .com_mode = INTERRUPT_TRANSFER,
85 .iface = SSP_INTERFACE_MOTOROLA_SPI,
86 /* we can act as master only */
87 .hierarchy = SSP_MASTER,
88 .slave_tx_disable = 0,
89 .rx_lev_trig = SSP_RX_1_OR_MORE_ELEM,
90 .tx_lev_trig = SSP_TX_1_OR_MORE_EMPTY_LOC,
91 .cs_control = ab4500_spi_cs_control,
94 static struct ab8500_platform_data ab8500_platdata = {
95 .irq_base = MOP500_AB8500_IRQ_BASE,
98 static struct resource ab8500_resources[] = {
102 .flags = IORESOURCE_IRQ
106 struct platform_device ab8500_device = {
107 .name = "ab8500-i2c",
110 .platform_data = &ab8500_platdata,
113 .resource = ab8500_resources,
116 static struct spi_board_info ab8500_spi_devices[] = {
118 .modalias = "ab8500-spi",
119 .controller_data = &ab4500_chip_info,
120 .platform_data = &ab8500_platdata,
121 .max_speed_hz = 12000000,
125 .irq = IRQ_DB8500_AB8500,
129 static struct pl022_ssp_controller ssp0_platform_data = {
131 /* pl022 not yet supports dma */
133 /* on this platform, gpio 31,142,144,214 &
134 * 224 are connected as chip selects
143 static void mop500_tc35892_init(struct tc35892 *tc35892, unsigned int base)
145 mop500_sdi_tc35892_init();
148 static struct tc35892_gpio_platform_data mop500_tc35892_gpio_data = {
149 .gpio_base = MOP500_EGPIO(0),
150 .setup = mop500_tc35892_init,
153 static struct tc35892_platform_data mop500_tc35892_data = {
154 .gpio = &mop500_tc35892_gpio_data,
155 .irq_base = MOP500_EGPIO_IRQ_BASE,
158 static struct i2c_board_info mop500_i2c0_devices[] = {
160 I2C_BOARD_INFO("tc35892", 0x42),
161 .irq = NOMADIK_GPIO_TO_IRQ(217),
162 .platform_data = &mop500_tc35892_data,
166 #define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
167 static struct nmk_i2c_controller u8500_i2c##id##_data = { \
169 * slave data setup time, which is \
170 * 250 ns,100ns,10ns which is 14,6,2 \
171 * respectively for a 48 Mhz \
175 /* Tx FIFO threshold */ \
177 /* Rx FIFO threshold */ \
179 /* std. mode operation */ \
185 * The board uses 4 i2c controllers, initialize all of
186 * them with slave data setup time of 250 ns,
187 * Tx & Rx FIFO threshold values as 1 and standard
190 U8500_I2C_CONTROLLER(0, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
191 U8500_I2C_CONTROLLER(1, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
192 U8500_I2C_CONTROLLER(2, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
193 U8500_I2C_CONTROLLER(3, 0xe, 1, 1, 100000, I2C_FREQ_MODE_STANDARD);
195 static struct amba_device *amba_devs[] __initdata = {
202 static const unsigned int ux500_keymap[] = {
204 KEY(4, 1, KEY_POWER),
205 KEY(3, 5, KEY_VOLUMEDOWN),
207 KEY(5, 2, KEY_RIGHT),
211 KEY(7, 6, KEY_ENTER),
219 KEY(4, 2, KEY_VOLUMEUP),
225 static const struct matrix_keymap_data ux500_keymap_data = {
226 .keymap = ux500_keymap,
227 .keymap_size = ARRAY_SIZE(ux500_keymap),
233 #define ROW_PIN_I0 164
234 #define ROW_PIN_I1 163
235 #define ROW_PIN_I2 162
236 #define ROW_PIN_I3 161
237 #define ROW_PIN_I4 156
238 #define ROW_PIN_I5 155
239 #define ROW_PIN_I6 154
240 #define ROW_PIN_I7 153
241 #define COL_PIN_O0 168
242 #define COL_PIN_O1 167
243 #define COL_PIN_O2 166
244 #define COL_PIN_O3 165
245 #define COL_PIN_O4 160
246 #define COL_PIN_O5 159
247 #define COL_PIN_O6 158
248 #define COL_PIN_O7 157
250 #define SKE_KPD_MAX_ROWS 8
251 #define SKE_KPD_MAX_COLS 8
253 static int ske_kp_rows[] = {
254 ROW_PIN_I0, ROW_PIN_I1, ROW_PIN_I2, ROW_PIN_I3,
255 ROW_PIN_I4, ROW_PIN_I5, ROW_PIN_I6, ROW_PIN_I7,
259 * ske_set_gpio_row: request and set gpio rows
261 static int ske_set_gpio_row(int gpio)
265 ret = gpio_request(gpio, "ske-kp");
267 pr_err("ske_set_gpio_row: gpio request failed\n");
271 ret = gpio_direction_output(gpio, 1);
273 pr_err("ske_set_gpio_row: gpio direction failed\n");
281 * ske_kp_init - enable the gpio configuration
283 static int ske_kp_init(void)
287 for (i = 0; i < SKE_KPD_MAX_ROWS; i++) {
288 ret = ske_set_gpio_row(ske_kp_rows[i]);
290 pr_err("ske_kp_init: failed init\n");
298 static struct ske_keypad_platform_data ske_keypad_board = {
300 .keymap_data = &ux500_keymap_data,
301 .no_autorepeat = true,
302 .krow = SKE_KPD_MAX_ROWS, /* 8x8 matrix */
303 .kcol = SKE_KPD_MAX_COLS,
304 .debounce_ms = 40, /* in millsecs */
309 /* add any platform devices here - TODO */
310 static struct platform_device *platform_devs[] __initdata = {
315 &ux500_ske_keypad_device,
318 static void __init u8500_init_machine(void)
322 u8500_init_devices();
324 nmk_config_pins(mop500_pins, ARRAY_SIZE(mop500_pins));
326 u8500_i2c0_device.dev.platform_data = &u8500_i2c0_data;
327 ux500_i2c1_device.dev.platform_data = &u8500_i2c1_data;
328 ux500_i2c2_device.dev.platform_data = &u8500_i2c2_data;
329 ux500_i2c3_device.dev.platform_data = &u8500_i2c3_data;
330 ux500_ske_keypad_device.dev.platform_data = &ske_keypad_board;
332 u8500_ssp0_device.dev.platform_data = &ssp0_platform_data;
334 /* Register the active AMBA devices on this board */
335 for (i = 0; i < ARRAY_SIZE(amba_devs); i++)
336 amba_device_register(amba_devs[i], &iomem_resource);
338 platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
342 /* If HW is early drop (ED) or V1.0 then use SPI to access AB8500 */
343 if (cpu_is_u8500ed() || cpu_is_u8500v10())
344 spi_register_board_info(ab8500_spi_devices,
345 ARRAY_SIZE(ab8500_spi_devices));
346 else /* If HW is v.1.1 or later use I2C to access AB8500 */
347 platform_device_register(&ab8500_device);
349 i2c_register_board_info(0, mop500_i2c0_devices,
350 ARRAY_SIZE(mop500_i2c0_devices));
353 MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
354 /* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
355 .boot_params = 0x100,
356 .map_io = u8500_map_io,
357 .init_irq = ux500_init_irq,
358 /* we re-use nomadik timer here */
359 .timer = &ux500_timer,
360 .init_machine = u8500_init_machine,