1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/arch/arm/mach-omap1/board-perseus2.c
4 *
5 * Modified from board-generic.c
6 *
7 * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
8 * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
9 */
10 #include <linux/gpio.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/delay.h>
15 #include <linux/mtd/mtd.h>
16 #include <linux/mtd/platnand.h>
17 #include <linux/mtd/physmap.h>
18 #include <linux/input.h>
19 #include <linux/smc91x.h>
20 #include <linux/omapfb.h>
21 #include <linux/platform_data/keypad-omap.h>
22
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26
27 #include <mach/tc.h>
28 #include <mach/mux.h>
29 #include "flash.h"
30
31 #include <mach/hardware.h>
32
33 #include "iomap.h"
34 #include "common.h"
35 #include "fpga.h"
36
37 static const unsigned int p2_keymap[] = {
38 KEY(0, 0, KEY_UP),
39 KEY(1, 0, KEY_RIGHT),
40 KEY(2, 0, KEY_LEFT),
41 KEY(3, 0, KEY_DOWN),
42 KEY(4, 0, KEY_ENTER),
43 KEY(0, 1, KEY_F10),
44 KEY(1, 1, KEY_SEND),
45 KEY(2, 1, KEY_END),
46 KEY(3, 1, KEY_VOLUMEDOWN),
47 KEY(4, 1, KEY_VOLUMEUP),
48 KEY(5, 1, KEY_RECORD),
49 KEY(0, 2, KEY_F9),
50 KEY(1, 2, KEY_3),
51 KEY(2, 2, KEY_6),
52 KEY(3, 2, KEY_9),
53 KEY(4, 2, KEY_KPDOT),
54 KEY(0, 3, KEY_BACK),
55 KEY(1, 3, KEY_2),
56 KEY(2, 3, KEY_5),
57 KEY(3, 3, KEY_8),
58 KEY(4, 3, KEY_0),
59 KEY(5, 3, KEY_KPSLASH),
60 KEY(0, 4, KEY_HOME),
61 KEY(1, 4, KEY_1),
62 KEY(2, 4, KEY_4),
63 KEY(3, 4, KEY_7),
64 KEY(4, 4, KEY_KPASTERISK),
65 KEY(5, 4, KEY_POWER),
66 };
67
68 static struct smc91x_platdata smc91x_info = {
69 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT,
70 .leda = RPC_LED_100_10,
71 .ledb = RPC_LED_TX_RX,
72 };
73
74 static struct resource smc91x_resources[] = {
75 [0] = {
76 .start = H2P2_DBG_FPGA_ETHR_START, /* Physical */
77 .end = H2P2_DBG_FPGA_ETHR_START + 0xf,
78 .flags = IORESOURCE_MEM,
79 },
80 [1] = {
81 .start = INT_7XX_MPU_EXT_NIRQ,
82 .end = 0,
83 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
84 },
85 };
86
87 static struct mtd_partition nor_partitions[] = {
88 /* bootloader (U-Boot, etc) in first sector */
89 {
90 .name = "bootloader",
91 .offset = 0,
92 .size = SZ_128K,
93 .mask_flags = MTD_WRITEABLE, /* force read-only */
94 },
95 /* bootloader params in the next sector */
96 {
97 .name = "params",
98 .offset = MTDPART_OFS_APPEND,
99 .size = SZ_128K,
100 .mask_flags = 0,
101 },
102 /* kernel */
103 {
104 .name = "kernel",
105 .offset = MTDPART_OFS_APPEND,
106 .size = SZ_2M,
107 .mask_flags = 0
108 },
109 /* rest of flash is a file system */
110 {
111 .name = "rootfs",
112 .offset = MTDPART_OFS_APPEND,
113 .size = MTDPART_SIZ_FULL,
114 .mask_flags = 0
115 },
116 };
117
118 static struct physmap_flash_data nor_data = {
119 .width = 2,
120 .set_vpp = omap1_set_vpp,
121 .parts = nor_partitions,
122 .nr_parts = ARRAY_SIZE(nor_partitions),
123 };
124
125 static struct resource nor_resource = {
126 .start = OMAP_CS0_PHYS,
127 .end = OMAP_CS0_PHYS + SZ_32M - 1,
128 .flags = IORESOURCE_MEM,
129 };
130
131 static struct platform_device nor_device = {
132 .name = "physmap-flash",
133 .id = 0,
134 .dev = {
135 .platform_data = &nor_data,
136 },
137 .num_resources = 1,
138 .resource = &nor_resource,
139 };
140
141 #define P2_NAND_RB_GPIO_PIN 62
142
nand_dev_ready(struct nand_chip * chip)143 static int nand_dev_ready(struct nand_chip *chip)
144 {
145 return gpio_get_value(P2_NAND_RB_GPIO_PIN);
146 }
147
148 static struct platform_nand_data nand_data = {
149 .chip = {
150 .nr_chips = 1,
151 .chip_offset = 0,
152 .options = NAND_SAMSUNG_LP_OPTIONS,
153 },
154 .ctrl = {
155 .cmd_ctrl = omap1_nand_cmd_ctl,
156 .dev_ready = nand_dev_ready,
157 },
158 };
159
160 static struct resource nand_resource = {
161 .start = OMAP_CS3_PHYS,
162 .end = OMAP_CS3_PHYS + SZ_4K - 1,
163 .flags = IORESOURCE_MEM,
164 };
165
166 static struct platform_device nand_device = {
167 .name = "gen_nand",
168 .id = 0,
169 .dev = {
170 .platform_data = &nand_data,
171 },
172 .num_resources = 1,
173 .resource = &nand_resource,
174 };
175
176 static struct platform_device smc91x_device = {
177 .name = "smc91x",
178 .id = 0,
179 .dev = {
180 .platform_data = &smc91x_info,
181 },
182 .num_resources = ARRAY_SIZE(smc91x_resources),
183 .resource = smc91x_resources,
184 };
185
186 static struct resource kp_resources[] = {
187 [0] = {
188 .start = INT_7XX_MPUIO_KEYPAD,
189 .end = INT_7XX_MPUIO_KEYPAD,
190 .flags = IORESOURCE_IRQ,
191 },
192 };
193
194 static const struct matrix_keymap_data p2_keymap_data = {
195 .keymap = p2_keymap,
196 .keymap_size = ARRAY_SIZE(p2_keymap),
197 };
198
199 static struct omap_kp_platform_data kp_data = {
200 .rows = 8,
201 .cols = 8,
202 .keymap_data = &p2_keymap_data,
203 .delay = 4,
204 .dbounce = true,
205 };
206
207 static struct platform_device kp_device = {
208 .name = "omap-keypad",
209 .id = -1,
210 .dev = {
211 .platform_data = &kp_data,
212 },
213 .num_resources = ARRAY_SIZE(kp_resources),
214 .resource = kp_resources,
215 };
216
217 static struct platform_device *devices[] __initdata = {
218 &nor_device,
219 &nand_device,
220 &smc91x_device,
221 &kp_device,
222 };
223
224 static const struct omap_lcd_config perseus2_lcd_config __initconst = {
225 .ctrl_name = "internal",
226 };
227
perseus2_init_smc91x(void)228 static void __init perseus2_init_smc91x(void)
229 {
230 __raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
231 mdelay(50);
232 __raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
233 H2P2_DBG_FPGA_LAN_RESET);
234 mdelay(50);
235 }
236
omap_perseus2_init(void)237 static void __init omap_perseus2_init(void)
238 {
239 /* Early, board-dependent init */
240
241 /*
242 * Hold GSM Reset until needed
243 */
244 omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
245
246 /*
247 * UARTs -> done automagically by 8250 driver
248 */
249
250 /*
251 * CSx timings, GPIO Mux ... setup
252 */
253
254 /* Flash: CS0 timings setup */
255 omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
256 omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
257
258 /*
259 * Ethernet support through the debug board
260 * CS1 timings setup
261 */
262 omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
263 omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
264
265 /*
266 * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
267 * It is used as the Ethernet controller interrupt
268 */
269 omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
270 OMAP7XX_IO_CONF_9);
271
272 perseus2_init_smc91x();
273
274 BUG_ON(gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0);
275 gpio_direction_input(P2_NAND_RB_GPIO_PIN);
276
277 omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
278 omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
279
280 /* Mux pins for keypad */
281 omap_cfg_reg(E2_7XX_KBR0);
282 omap_cfg_reg(J7_7XX_KBR1);
283 omap_cfg_reg(E1_7XX_KBR2);
284 omap_cfg_reg(F3_7XX_KBR3);
285 omap_cfg_reg(D2_7XX_KBR4);
286 omap_cfg_reg(C2_7XX_KBC0);
287 omap_cfg_reg(D3_7XX_KBC1);
288 omap_cfg_reg(E4_7XX_KBC2);
289 omap_cfg_reg(F4_7XX_KBC3);
290 omap_cfg_reg(E3_7XX_KBC4);
291
292 platform_add_devices(devices, ARRAY_SIZE(devices));
293
294 omap_serial_init();
295 omap_register_i2c_bus(1, 100, NULL, 0);
296
297 omapfb_set_lcd_config(&perseus2_lcd_config);
298 }
299
300 /* Only FPGA needs to be mapped here. All others are done with ioremap */
301 static struct map_desc omap_perseus2_io_desc[] __initdata = {
302 {
303 .virtual = H2P2_DBG_FPGA_BASE,
304 .pfn = __phys_to_pfn(H2P2_DBG_FPGA_START),
305 .length = H2P2_DBG_FPGA_SIZE,
306 .type = MT_DEVICE
307 }
308 };
309
omap_perseus2_map_io(void)310 static void __init omap_perseus2_map_io(void)
311 {
312 omap7xx_map_io();
313 iotable_init(omap_perseus2_io_desc,
314 ARRAY_SIZE(omap_perseus2_io_desc));
315 }
316
317 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
318 /* Maintainer: Kevin Hilman <kjh@hilman.org> */
319 .atag_offset = 0x100,
320 .map_io = omap_perseus2_map_io,
321 .init_early = omap1_init_early,
322 .init_irq = omap1_init_irq,
323 .handle_irq = omap1_handle_irq,
324 .init_machine = omap_perseus2_init,
325 .init_late = omap1_init_late,
326 .init_time = omap1_timer_init,
327 .restart = omap1_restart,
328 MACHINE_END
329