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1 | /* |
2 | * linux/arch/arm/mach-pxa/littleton.c |
3 | * |
4 | * Support for the Marvell Littleton Development Platform. |
5 | * |
6 | * Author: Jason Chagas (largely modified code) |
7 | * Created: Nov 20, 2006 |
8 | * Copyright: (C) Copyright 2006 Marvell International Ltd. |
9 | * |
10 | * 2007-11-22 modified to align with latest kernel |
11 | * eric miao <eric.miao@marvell.com> |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU General Public License version 2 as |
15 | * publishhed by the Free Software Foundation. |
16 | */ |
17 | |
18 | #include <linux/init.h> |
19 | #include <linux/interrupt.h> |
20 | #include <linux/delay.h> |
21 | #include <linux/platform_device.h> |
22 | #include <linux/clk.h> |
23 | |
24 | #include <asm/types.h> |
25 | #include <asm/setup.h> |
26 | #include <asm/memory.h> |
27 | #include <asm/mach-types.h> |
28 | #include <asm/hardware.h> |
29 | #include <asm/irq.h> |
30 | |
31 | #include <asm/mach/arch.h> |
32 | #include <asm/mach/map.h> |
33 | #include <asm/mach/irq.h> |
34 | |
35 | #include <asm/arch/pxa-regs.h> |
36 | #include <asm/arch/mfp-pxa300.h> |
37 | #include <asm/arch/gpio.h> |
38 | #include <asm/arch/pxafb.h> |
39 | #include <asm/arch/ssp.h> |
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40 | #include <asm/arch/pxa27x_keypad.h> |
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41 | #include <asm/arch/littleton.h> |
42 | |
43 | #include "generic.h" |
44 | |
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45 | /* Littleton MFP configurations */ |
46 | static mfp_cfg_t littleton_mfp_cfg[] __initdata = { |
47 | /* LCD */ |
48 | GPIO54_LCD_LDD_0, |
49 | GPIO55_LCD_LDD_1, |
50 | GPIO56_LCD_LDD_2, |
51 | GPIO57_LCD_LDD_3, |
52 | GPIO58_LCD_LDD_4, |
53 | GPIO59_LCD_LDD_5, |
54 | GPIO60_LCD_LDD_6, |
55 | GPIO61_LCD_LDD_7, |
56 | GPIO62_LCD_LDD_8, |
57 | GPIO63_LCD_LDD_9, |
58 | GPIO64_LCD_LDD_10, |
59 | GPIO65_LCD_LDD_11, |
60 | GPIO66_LCD_LDD_12, |
61 | GPIO67_LCD_LDD_13, |
62 | GPIO68_LCD_LDD_14, |
63 | GPIO69_LCD_LDD_15, |
64 | GPIO70_LCD_LDD_16, |
65 | GPIO71_LCD_LDD_17, |
66 | GPIO72_LCD_FCLK, |
67 | GPIO73_LCD_LCLK, |
68 | GPIO74_LCD_PCLK, |
69 | GPIO75_LCD_BIAS, |
70 | |
71 | /* SSP2 */ |
72 | GPIO25_SSP2_SCLK, |
73 | GPIO17_SSP2_FRM, |
74 | GPIO27_SSP2_TXD, |
75 | |
76 | /* Debug Ethernet */ |
77 | GPIO90_GPIO, |
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78 | |
79 | /* Keypad */ |
80 | GPIO107_KP_DKIN_0, |
81 | GPIO108_KP_DKIN_1, |
82 | GPIO115_KP_MKIN_0, |
83 | GPIO116_KP_MKIN_1, |
84 | GPIO117_KP_MKIN_2, |
85 | GPIO118_KP_MKIN_3, |
86 | GPIO119_KP_MKIN_4, |
87 | GPIO120_KP_MKIN_5, |
88 | GPIO121_KP_MKOUT_0, |
89 | GPIO122_KP_MKOUT_1, |
90 | GPIO123_KP_MKOUT_2, |
91 | GPIO124_KP_MKOUT_3, |
92 | GPIO125_KP_MKOUT_4, |
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93 | }; |
94 | |
95 | static struct resource smc91x_resources[] = { |
96 | [0] = { |
97 | .start = (LITTLETON_ETH_PHYS + 0x300), |
98 | .end = (LITTLETON_ETH_PHYS + 0xfffff), |
99 | .flags = IORESOURCE_MEM, |
100 | }, |
101 | [1] = { |
102 | .start = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)), |
103 | .end = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)), |
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104 | .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING, |
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105 | } |
106 | }; |
107 | |
108 | static struct platform_device smc91x_device = { |
109 | .name = "smc91x", |
110 | .id = 0, |
111 | .num_resources = ARRAY_SIZE(smc91x_resources), |
112 | .resource = smc91x_resources, |
113 | }; |
114 | |
115 | #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULES) |
116 | /* use bit 30, 31 as the indicator of command parameter number */ |
117 | #define CMD0(x) ((0x00000000) | ((x) << 9)) |
118 | #define CMD1(x, x1) ((0x40000000) | ((x) << 9) | 0x100 | (x1)) |
119 | #define CMD2(x, x1, x2) ((0x80000000) | ((x) << 18) | 0x20000 |\ |
120 | ((x1) << 9) | 0x100 | (x2)) |
121 | |
122 | static uint32_t lcd_panel_reset[] = { |
123 | CMD0(0x1), /* reset */ |
124 | CMD0(0x0), /* nop */ |
125 | CMD0(0x0), /* nop */ |
126 | CMD0(0x0), /* nop */ |
127 | }; |
128 | |
129 | static uint32_t lcd_panel_on[] = { |
130 | CMD0(0x29), /* Display ON */ |
131 | CMD2(0xB8, 0xFF, 0xF9), /* Output Control */ |
132 | CMD0(0x11), /* Sleep out */ |
133 | CMD1(0xB0, 0x16), /* Wake */ |
134 | }; |
135 | |
136 | static uint32_t lcd_panel_off[] = { |
137 | CMD0(0x28), /* Display OFF */ |
138 | CMD2(0xB8, 0x80, 0x02), /* Output Control */ |
139 | CMD0(0x10), /* Sleep in */ |
140 | CMD1(0xB0, 0x00), /* Deep stand by in */ |
141 | }; |
142 | |
143 | static uint32_t lcd_vga_pass_through[] = { |
144 | CMD1(0xB0, 0x16), |
145 | CMD1(0xBC, 0x80), |
146 | CMD1(0xE1, 0x00), |
147 | CMD1(0x36, 0x50), |
148 | CMD1(0x3B, 0x00), |
149 | }; |
150 | |
151 | static uint32_t lcd_qvga_pass_through[] = { |
152 | CMD1(0xB0, 0x16), |
153 | CMD1(0xBC, 0x81), |
154 | CMD1(0xE1, 0x00), |
155 | CMD1(0x36, 0x50), |
156 | CMD1(0x3B, 0x22), |
157 | }; |
158 | |
159 | static uint32_t lcd_vga_transfer[] = { |
160 | CMD1(0xcf, 0x02), /* Blanking period control (1) */ |
161 | CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */ |
162 | CMD1(0xd1, 0x01), /* CKV timing control on/off */ |
163 | CMD2(0xd2, 0x14, 0x00), /* CKV 1,2 timing control */ |
164 | CMD2(0xd3, 0x1a, 0x0f), /* OEV timing control */ |
165 | CMD2(0xd4, 0x1f, 0xaf), /* ASW timing control (1) */ |
166 | CMD1(0xd5, 0x14), /* ASW timing control (2) */ |
167 | CMD0(0x21), /* Invert for normally black display */ |
168 | CMD0(0x29), /* Display on */ |
169 | }; |
170 | |
171 | static uint32_t lcd_qvga_transfer[] = { |
172 | CMD1(0xd6, 0x02), /* Blanking period control (1) */ |
173 | CMD2(0xd7, 0x08, 0x04), /* Blanking period control (2) */ |
174 | CMD1(0xd8, 0x01), /* CKV timing control on/off */ |
175 | CMD2(0xd9, 0x00, 0x08), /* CKV 1,2 timing control */ |
176 | CMD2(0xde, 0x05, 0x0a), /* OEV timing control */ |
177 | CMD2(0xdf, 0x0a, 0x19), /* ASW timing control (1) */ |
178 | CMD1(0xe0, 0x0a), /* ASW timing control (2) */ |
179 | CMD0(0x21), /* Invert for normally black display */ |
180 | CMD0(0x29), /* Display on */ |
181 | }; |
182 | |
183 | static uint32_t lcd_panel_config[] = { |
184 | CMD2(0xb8, 0xff, 0xf9), /* Output control */ |
185 | CMD0(0x11), /* sleep out */ |
186 | CMD1(0xba, 0x01), /* Display mode (1) */ |
187 | CMD1(0xbb, 0x00), /* Display mode (2) */ |
188 | CMD1(0x3a, 0x60), /* Display mode 18-bit RGB */ |
189 | CMD1(0xbf, 0x10), /* Drive system change control */ |
190 | CMD1(0xb1, 0x56), /* Booster operation setup */ |
191 | CMD1(0xb2, 0x33), /* Booster mode setup */ |
192 | CMD1(0xb3, 0x11), /* Booster frequency setup */ |
193 | CMD1(0xb4, 0x02), /* Op amp/system clock */ |
194 | CMD1(0xb5, 0x35), /* VCS voltage */ |
195 | CMD1(0xb6, 0x40), /* VCOM voltage */ |
196 | CMD1(0xb7, 0x03), /* External display signal */ |
197 | CMD1(0xbd, 0x00), /* ASW slew rate */ |
198 | CMD1(0xbe, 0x00), /* Dummy data for QuadData operation */ |
199 | CMD1(0xc0, 0x11), /* Sleep out FR count (A) */ |
200 | CMD1(0xc1, 0x11), /* Sleep out FR count (B) */ |
201 | CMD1(0xc2, 0x11), /* Sleep out FR count (C) */ |
202 | CMD2(0xc3, 0x20, 0x40), /* Sleep out FR count (D) */ |
203 | CMD2(0xc4, 0x60, 0xc0), /* Sleep out FR count (E) */ |
204 | CMD2(0xc5, 0x10, 0x20), /* Sleep out FR count (F) */ |
205 | CMD1(0xc6, 0xc0), /* Sleep out FR count (G) */ |
206 | CMD2(0xc7, 0x33, 0x43), /* Gamma 1 fine tuning (1) */ |
207 | CMD1(0xc8, 0x44), /* Gamma 1 fine tuning (2) */ |
208 | CMD1(0xc9, 0x33), /* Gamma 1 inclination adjustment */ |
209 | CMD1(0xca, 0x00), /* Gamma 1 blue offset adjustment */ |
210 | CMD2(0xec, 0x01, 0xf0), /* Horizontal clock cycles */ |
211 | }; |
212 | |
213 | static void ssp_reconfig(struct ssp_dev *dev, int nparam) |
214 | { |
215 | static int last_nparam = -1; |
216 | |
217 | /* check if it is necessary to re-config SSP */ |
218 | if (nparam == last_nparam) |
219 | return; |
220 | |
221 | ssp_disable(dev); |
222 | ssp_config(dev, (nparam == 2) ? 0x0010058a : 0x00100581, 0x18, 0, 0); |
223 | |
224 | last_nparam = nparam; |
225 | } |
226 | |
227 | static void ssp_send_cmd(uint32_t *cmd, int num) |
228 | { |
229 | static int ssp_initialized; |
230 | static struct ssp_dev ssp2; |
231 | |
232 | int i; |
233 | |
234 | if (!ssp_initialized) { |
235 | ssp_init(&ssp2, 2, SSP_NO_IRQ); |
236 | ssp_initialized = 1; |
237 | } |
238 | |
239 | clk_enable(ssp2.ssp->clk); |
240 | for (i = 0; i < num; i++, cmd++) { |
241 | ssp_reconfig(&ssp2, (*cmd >> 30) & 0x3); |
242 | ssp_write_word(&ssp2, *cmd & 0x3fffffff); |
243 | |
244 | /* FIXME: ssp_flush() is mandatory here to work */ |
245 | ssp_flush(&ssp2); |
246 | } |
247 | clk_disable(ssp2.ssp->clk); |
248 | } |
249 | |
250 | static void littleton_lcd_power(int on, struct fb_var_screeninfo *var) |
251 | { |
252 | if (on) { |
253 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_on)); |
254 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_reset)); |
255 | if (var->xres > 240) { |
256 | /* VGA */ |
257 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_pass_through)); |
258 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config)); |
259 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_transfer)); |
260 | } else { |
261 | /* QVGA */ |
262 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_pass_through)); |
263 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config)); |
264 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_transfer)); |
265 | } |
266 | } else |
267 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_off)); |
268 | } |
269 | |
270 | static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = { |
271 | [0] = { |
272 | /* VGA */ |
273 | .pixclock = 38250, |
274 | .xres = 480, |
275 | .yres = 640, |
276 | .bpp = 16, |
277 | .hsync_len = 8, |
278 | .left_margin = 8, |
279 | .right_margin = 24, |
280 | .vsync_len = 2, |
281 | .upper_margin = 2, |
282 | .lower_margin = 4, |
283 | .sync = 0, |
284 | }, |
285 | [1] = { |
286 | /* QVGA */ |
287 | .pixclock = 153000, |
288 | .xres = 240, |
289 | .yres = 320, |
290 | .bpp = 16, |
291 | .hsync_len = 8, |
292 | .left_margin = 8, |
293 | .right_margin = 88, |
294 | .vsync_len = 2, |
295 | .upper_margin = 2, |
296 | .lower_margin = 2, |
297 | .sync = 0, |
298 | }, |
299 | }; |
300 | |
301 | static struct pxafb_mach_info littleton_lcd_info = { |
302 | .modes = tpo_tdo24mtea1_modes, |
303 | .num_modes = 2, |
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304 | .lcd_conn = LCD_COLOR_TFT_16BPP, |
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305 | .pxafb_lcd_power = littleton_lcd_power, |
306 | }; |
307 | |
308 | static void littleton_init_lcd(void) |
309 | { |
310 | set_pxa_fb_info(&littleton_lcd_info); |
311 | } |
312 | #else |
313 | static inline void littleton_init_lcd(void) {}; |
314 | #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULES */ |
315 | |
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316 | #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULES) |
317 | static unsigned int littleton_matrix_key_map[] = { |
318 | /* KEY(row, col, key_code) */ |
319 | KEY(1, 3, KEY_0), KEY(0, 0, KEY_1), KEY(1, 0, KEY_2), KEY(2, 0, KEY_3), |
320 | KEY(0, 1, KEY_4), KEY(1, 1, KEY_5), KEY(2, 1, KEY_6), KEY(0, 2, KEY_7), |
321 | KEY(1, 2, KEY_8), KEY(2, 2, KEY_9), |
322 | |
323 | KEY(0, 3, KEY_KPASTERISK), /* * */ |
324 | KEY(2, 3, KEY_KPDOT), /* # */ |
325 | |
326 | KEY(5, 4, KEY_ENTER), |
327 | |
328 | KEY(5, 0, KEY_UP), |
329 | KEY(5, 1, KEY_DOWN), |
330 | KEY(5, 2, KEY_LEFT), |
331 | KEY(5, 3, KEY_RIGHT), |
332 | KEY(3, 2, KEY_HOME), |
333 | KEY(4, 1, KEY_END), |
334 | KEY(3, 3, KEY_BACK), |
335 | |
336 | KEY(4, 0, KEY_SEND), |
337 | KEY(4, 2, KEY_VOLUMEUP), |
338 | KEY(4, 3, KEY_VOLUMEDOWN), |
339 | |
340 | KEY(3, 0, KEY_F22), /* soft1 */ |
341 | KEY(3, 1, KEY_F23), /* soft2 */ |
342 | }; |
343 | |
344 | static struct pxa27x_keypad_platform_data littleton_keypad_info = { |
345 | .matrix_key_rows = 6, |
346 | .matrix_key_cols = 5, |
347 | .matrix_key_map = littleton_matrix_key_map, |
348 | .matrix_key_map_size = ARRAY_SIZE(littleton_matrix_key_map), |
349 | |
350 | .enable_rotary0 = 1, |
351 | .rotary0_up_key = KEY_UP, |
352 | .rotary0_down_key = KEY_DOWN, |
353 | |
354 | .debounce_interval = 30, |
355 | }; |
356 | static void __init littleton_init_keypad(void) |
357 | { |
358 | pxa_set_keypad_info(&littleton_keypad_info); |
359 | } |
360 | #else |
361 | static inline void littleton_init_keypad(void) {} |
362 | #endif |
363 | |
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364 | static void __init littleton_init(void) |
365 | { |
366 | /* initialize MFP configurations */ |
367 | pxa3xx_mfp_config(ARRAY_AND_SIZE(littleton_mfp_cfg)); |
368 | |
369 | /* |
370 | * Note: we depend bootloader set the correct |
371 | * value to MSC register for SMC91x. |
372 | */ |
373 | platform_device_register(&smc91x_device); |
374 | |
375 | littleton_init_lcd(); |
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376 | littleton_init_keypad(); |
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377 | } |
378 | |
379 | MACHINE_START(LITTLETON, "Marvell Form Factor Development Platform (aka Littleton)") |
380 | .phys_io = 0x40000000, |
381 | .boot_params = 0xa0000100, |
382 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, |
383 | .map_io = pxa_map_io, |
384 | .init_irq = pxa3xx_init_irq, |
385 | .timer = &pxa_timer, |
386 | .init_machine = littleton_init, |
387 | MACHINE_END |