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-rw-r--r--arch/arm/mach-omap2/board-h4.c365
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diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
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1/*
2 * linux/arch/arm/mach-omap2/board-h4.c
3 *
4 * Copyright (C) 2005 Nokia Corporation
5 * Author: Paul Mundt <paul.mundt@nokia.com>
6 *
7 * Modified from mach-omap/omap1/board-generic.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13#include <linux/gpio.h>
14#include <linux/kernel.h>
15#include <linux/init.h>
16#include <linux/platform_device.h>
17#include <linux/mtd/mtd.h>
18#include <linux/mtd/partitions.h>
19#include <linux/mtd/physmap.h>
20#include <linux/delay.h>
21#include <linux/workqueue.h>
22#include <linux/i2c.h>
23#include <linux/platform_data/at24.h>
24#include <linux/input.h>
25#include <linux/err.h>
26#include <linux/clk.h>
27#include <linux/io.h>
28#include <linux/input/matrix_keypad.h>
29#include <linux/mfd/menelaus.h>
30#include <linux/omap-dma.h>
31
32#include <asm/mach-types.h>
33#include <asm/mach/arch.h>
34#include <asm/mach/map.h>
35
36#include <video/omapdss.h>
37#include <video/omap-panel-data.h>
38
39#include "common.h"
40#include "mux.h"
41#include "control.h"
42#include "gpmc.h"
43#include "gpmc-smc91x.h"
44
45#define H4_FLASH_CS 0
46
47#if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
48static const uint32_t board_matrix_keys[] = {
49 KEY(0, 0, KEY_LEFT),
50 KEY(1, 0, KEY_RIGHT),
51 KEY(2, 0, KEY_A),
52 KEY(3, 0, KEY_B),
53 KEY(4, 0, KEY_C),
54 KEY(0, 1, KEY_DOWN),
55 KEY(1, 1, KEY_UP),
56 KEY(2, 1, KEY_E),
57 KEY(3, 1, KEY_F),
58 KEY(4, 1, KEY_G),
59 KEY(0, 2, KEY_ENTER),
60 KEY(1, 2, KEY_I),
61 KEY(2, 2, KEY_J),
62 KEY(3, 2, KEY_K),
63 KEY(4, 2, KEY_3),
64 KEY(0, 3, KEY_M),
65 KEY(1, 3, KEY_N),
66 KEY(2, 3, KEY_O),
67 KEY(3, 3, KEY_P),
68 KEY(4, 3, KEY_Q),
69 KEY(0, 4, KEY_R),
70 KEY(1, 4, KEY_4),
71 KEY(2, 4, KEY_T),
72 KEY(3, 4, KEY_U),
73 KEY(4, 4, KEY_ENTER),
74 KEY(0, 5, KEY_V),
75 KEY(1, 5, KEY_W),
76 KEY(2, 5, KEY_L),
77 KEY(3, 5, KEY_S),
78 KEY(4, 5, KEY_ENTER),
79};
80
81static const struct matrix_keymap_data board_keymap_data = {
82 .keymap = board_matrix_keys,
83 .keymap_size = ARRAY_SIZE(board_matrix_keys),
84};
85
86static unsigned int board_keypad_row_gpios[] = {
87 88, 89, 124, 11, 6, 96
88};
89
90static unsigned int board_keypad_col_gpios[] = {
91 90, 91, 100, 36, 12, 97, 98
92};
93
94static struct matrix_keypad_platform_data board_keypad_platform_data = {
95 .keymap_data = &board_keymap_data,
96 .row_gpios = board_keypad_row_gpios,
97 .num_row_gpios = ARRAY_SIZE(board_keypad_row_gpios),
98 .col_gpios = board_keypad_col_gpios,
99 .num_col_gpios = ARRAY_SIZE(board_keypad_col_gpios),
100 .active_low = 1,
101
102 .debounce_ms = 20,
103 .col_scan_delay_us = 5,
104};
105
106static struct platform_device board_keyboard = {
107 .name = "matrix-keypad",
108 .id = -1,
109 .dev = {
110 .platform_data = &board_keypad_platform_data,
111 },
112};
113static void __init board_mkp_init(void)
114{
115 omap_mux_init_gpio(88, OMAP_PULL_ENA | OMAP_PULL_UP);
116 omap_mux_init_gpio(89, OMAP_PULL_ENA | OMAP_PULL_UP);
117 omap_mux_init_gpio(124, OMAP_PULL_ENA | OMAP_PULL_UP);
118 omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
119 if (omap_has_menelaus()) {
120 omap_mux_init_signal("sdrc_a14.gpio0",
121 OMAP_PULL_ENA | OMAP_PULL_UP);
122 omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
123 omap_mux_init_signal("gpio_98", 0);
124 board_keypad_row_gpios[5] = 0;
125 board_keypad_col_gpios[2] = 15;
126 board_keypad_col_gpios[6] = 18;
127 } else {
128 omap_mux_init_signal("gpio_96", OMAP_PULL_ENA | OMAP_PULL_UP);
129 omap_mux_init_signal("gpio_100", 0);
130 omap_mux_init_signal("gpio_98", 0);
131 }
132 omap_mux_init_signal("gpio_90", 0);
133 omap_mux_init_signal("gpio_91", 0);
134 omap_mux_init_signal("gpio_36", 0);
135 omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
136 omap_mux_init_signal("gpio_97", 0);
137
138 platform_device_register(&board_keyboard);
139}
140#else
141static inline void board_mkp_init(void)
142{
143}
144#endif
145
146static struct mtd_partition h4_partitions[] = {
147 /* bootloader (U-Boot, etc) in first sector */
148 {
149 .name = "bootloader",
150 .offset = 0,
151 .size = SZ_128K,
152 .mask_flags = MTD_WRITEABLE, /* force read-only */
153 },
154 /* bootloader params in the next sector */
155 {
156 .name = "params",
157 .offset = MTDPART_OFS_APPEND,
158 .size = SZ_128K,
159 .mask_flags = 0,
160 },
161 /* kernel */
162 {
163 .name = "kernel",
164 .offset = MTDPART_OFS_APPEND,
165 .size = SZ_2M,
166 .mask_flags = 0
167 },
168 /* file system */
169 {
170 .name = "filesystem",
171 .offset = MTDPART_OFS_APPEND,
172 .size = MTDPART_SIZ_FULL,
173 .mask_flags = 0
174 }
175};
176
177static struct physmap_flash_data h4_flash_data = {
178 .width = 2,
179 .parts = h4_partitions,
180 .nr_parts = ARRAY_SIZE(h4_partitions),
181};
182
183static struct resource h4_flash_resource = {
184 .flags = IORESOURCE_MEM,
185};
186
187static struct platform_device h4_flash_device = {
188 .name = "physmap-flash",
189 .id = 0,
190 .dev = {
191 .platform_data = &h4_flash_data,
192 },
193 .num_resources = 1,
194 .resource = &h4_flash_resource,
195};
196
197static const struct display_timing cm_t35_lcd_videomode = {
198 .pixelclock = { 0, 6250000, 0 },
199
200 .hactive = { 0, 240, 0 },
201 .hfront_porch = { 0, 15, 0 },
202 .hback_porch = { 0, 60, 0 },
203 .hsync_len = { 0, 15, 0 },
204
205 .vactive = { 0, 320, 0 },
206 .vfront_porch = { 0, 1, 0 },
207 .vback_porch = { 0, 1, 0 },
208 .vsync_len = { 0, 1, 0 },
209
210 .flags = DISPLAY_FLAGS_HSYNC_HIGH | DISPLAY_FLAGS_VSYNC_HIGH |
211 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
212};
213
214static struct panel_dpi_platform_data cm_t35_lcd_pdata = {
215 .name = "lcd",
216 .source = "dpi.0",
217
218 .data_lines = 16,
219
220 .display_timing = &cm_t35_lcd_videomode,
221
222 .enable_gpio = -1,
223 .backlight_gpio = -1,
224};
225
226static struct platform_device cm_t35_lcd_device = {
227 .name = "panel-dpi",
228 .id = 0,
229 .dev.platform_data = &cm_t35_lcd_pdata,
230};
231
232static struct platform_device *h4_devices[] __initdata = {
233 &h4_flash_device,
234 &cm_t35_lcd_device,
235};
236
237static struct omap_dss_board_info h4_dss_data = {
238 .default_display_name = "lcd",
239};
240
241/* 2420 Sysboot setup (2430 is different) */
242static u32 get_sysboot_value(void)
243{
244 return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
245 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
246 OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
247 OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
248}
249
250/* H4-2420's always used muxed mode, H4-2422's always use non-muxed
251 *
252 * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
253 * correctly. The macro needs to look at production_id not just hawkeye.
254 */
255static u32 is_gpmc_muxed(void)
256{
257 u32 mux;
258 mux = get_sysboot_value();
259 if ((mux & 0xF) == 0xd)
260 return 1; /* NAND config (could be either) */
261 if (mux & 0x2) /* if mux'ed */
262 return 1;
263 else
264 return 0;
265}
266
267#if IS_ENABLED(CONFIG_SMC91X)
268
269static struct omap_smc91x_platform_data board_smc91x_data = {
270 .cs = 1,
271 .gpio_irq = 92,
272 .flags = GPMC_TIMINGS_SMC91C96 | IORESOURCE_IRQ_LOWLEVEL,
273};
274
275static void __init board_smc91x_init(void)
276{
277 if (is_gpmc_muxed())
278 board_smc91x_data.flags |= GPMC_MUX_ADD_DATA;
279
280 omap_mux_init_gpio(board_smc91x_data.gpio_irq, OMAP_PIN_INPUT);
281 gpmc_smc91x_init(&board_smc91x_data);
282}
283
284#else
285
286static inline void board_smc91x_init(void)
287{
288}
289
290#endif
291
292static void __init h4_init_flash(void)
293{
294 unsigned long base;
295
296 if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
297 printk("Can't request GPMC CS for flash\n");
298 return;
299 }
300 h4_flash_resource.start = base;
301 h4_flash_resource.end = base + SZ_64M - 1;
302}
303
304static struct at24_platform_data m24c01 = {
305 .byte_len = SZ_1K / 8,
306 .page_size = 16,
307};
308
309static struct i2c_board_info __initdata h4_i2c_board_info[] = {
310 {
311 I2C_BOARD_INFO("isp1301_omap", 0x2d),
312 },
313 { /* EEPROM on mainboard */
314 I2C_BOARD_INFO("24c01", 0x52),
315 .platform_data = &m24c01,
316 },
317 { /* EEPROM on cpu card */
318 I2C_BOARD_INFO("24c01", 0x57),
319 .platform_data = &m24c01,
320 },
321};
322
323#ifdef CONFIG_OMAP_MUX
324static struct omap_board_mux board_mux[] __initdata = {
325 { .reg_offset = OMAP_MUX_TERMINATOR },
326};
327#endif
328
329static void __init omap_h4_init(void)
330{
331 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAF);
332
333 /*
334 * Make sure the serial ports are muxed on at this point.
335 * You have to mux them off in device drivers later on
336 * if not needed.
337 */
338
339 board_mkp_init();
340 h4_i2c_board_info[0].irq = gpio_to_irq(125);
341 i2c_register_board_info(1, h4_i2c_board_info,
342 ARRAY_SIZE(h4_i2c_board_info));
343
344 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
345 omap_serial_init();
346 omap_sdrc_init(NULL, NULL);
347 h4_init_flash();
348 board_smc91x_init();
349
350 omap_display_init(&h4_dss_data);
351}
352
353MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
354 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
355 .atag_offset = 0x100,
356 .reserve = omap_reserve,
357 .map_io = omap242x_map_io,
358 .init_early = omap2420_init_early,
359 .init_irq = omap2_init_irq,
360 .handle_irq = omap2_intc_handle_irq,
361 .init_machine = omap_h4_init,
362 .init_late = omap2420_init_late,
363 .init_time = omap2_sync32k_timer_init,
364 .restart = omap2xxx_restart,
365MACHINE_END
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