diff options
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r-- | arch/arm/mach-pxa/include/mach/littleton.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/littleton.c | 205 |
2 files changed, 51 insertions, 156 deletions
diff --git a/arch/arm/mach-pxa/include/mach/littleton.h b/arch/arm/mach-pxa/include/mach/littleton.h index 79d209b826f4..5c4e320c1437 100644 --- a/arch/arm/mach-pxa/include/mach/littleton.h +++ b/arch/arm/mach-pxa/include/mach/littleton.h | |||
@@ -3,4 +3,6 @@ | |||
3 | 3 | ||
4 | #define LITTLETON_ETH_PHYS 0x30000000 | 4 | #define LITTLETON_ETH_PHYS 0x30000000 |
5 | 5 | ||
6 | #define LITTLETON_GPIO_LCD_CS (17) | ||
7 | |||
6 | #endif /* __ASM_ARCH_ZYLONITE_H */ | 8 | #endif /* __ASM_ARCH_ZYLONITE_H */ |
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c index 58f3402a0375..b4d00aba0e31 100644 --- a/arch/arm/mach-pxa/littleton.c +++ b/arch/arm/mach-pxa/littleton.c | |||
@@ -20,6 +20,7 @@ | |||
20 | #include <linux/delay.h> | 20 | #include <linux/delay.h> |
21 | #include <linux/platform_device.h> | 21 | #include <linux/platform_device.h> |
22 | #include <linux/clk.h> | 22 | #include <linux/clk.h> |
23 | #include <linux/spi/spi.h> | ||
23 | #include <linux/smc91x.h> | 24 | #include <linux/smc91x.h> |
24 | 25 | ||
25 | #include <asm/types.h> | 26 | #include <asm/types.h> |
@@ -38,6 +39,7 @@ | |||
38 | #include <mach/gpio.h> | 39 | #include <mach/gpio.h> |
39 | #include <mach/pxafb.h> | 40 | #include <mach/pxafb.h> |
40 | #include <mach/ssp.h> | 41 | #include <mach/ssp.h> |
42 | #include <mach/pxa2xx_spi.h> | ||
41 | #include <mach/pxa27x_keypad.h> | 43 | #include <mach/pxa27x_keypad.h> |
42 | #include <mach/pxa3xx_nand.h> | 44 | #include <mach/pxa3xx_nand.h> |
43 | #include <mach/littleton.h> | 45 | #include <mach/littleton.h> |
@@ -72,8 +74,8 @@ static mfp_cfg_t littleton_mfp_cfg[] __initdata = { | |||
72 | 74 | ||
73 | /* SSP2 */ | 75 | /* SSP2 */ |
74 | GPIO25_SSP2_SCLK, | 76 | GPIO25_SSP2_SCLK, |
75 | GPIO17_SSP2_FRM, | ||
76 | GPIO27_SSP2_TXD, | 77 | GPIO27_SSP2_TXD, |
78 | GPIO17_GPIO, /* SFRM as chip-select */ | ||
77 | 79 | ||
78 | /* Debug Ethernet */ | 80 | /* Debug Ethernet */ |
79 | GPIO90_GPIO, | 81 | GPIO90_GPIO, |
@@ -123,160 +125,6 @@ static struct platform_device smc91x_device = { | |||
123 | }; | 125 | }; |
124 | 126 | ||
125 | #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) | 127 | #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE) |
126 | /* use bit 30, 31 as the indicator of command parameter number */ | ||
127 | #define CMD0(x) ((0x00000000) | ((x) << 9)) | ||
128 | #define CMD1(x, x1) ((0x40000000) | ((x) << 9) | 0x100 | (x1)) | ||
129 | #define CMD2(x, x1, x2) ((0x80000000) | ((x) << 18) | 0x20000 |\ | ||
130 | ((x1) << 9) | 0x100 | (x2)) | ||
131 | |||
132 | static uint32_t lcd_panel_reset[] = { | ||
133 | CMD0(0x1), /* reset */ | ||
134 | CMD0(0x0), /* nop */ | ||
135 | CMD0(0x0), /* nop */ | ||
136 | CMD0(0x0), /* nop */ | ||
137 | }; | ||
138 | |||
139 | static uint32_t lcd_panel_on[] = { | ||
140 | CMD0(0x29), /* Display ON */ | ||
141 | CMD2(0xB8, 0xFF, 0xF9), /* Output Control */ | ||
142 | CMD0(0x11), /* Sleep out */ | ||
143 | CMD1(0xB0, 0x16), /* Wake */ | ||
144 | }; | ||
145 | |||
146 | static uint32_t lcd_panel_off[] = { | ||
147 | CMD0(0x28), /* Display OFF */ | ||
148 | CMD2(0xB8, 0x80, 0x02), /* Output Control */ | ||
149 | CMD0(0x10), /* Sleep in */ | ||
150 | CMD1(0xB0, 0x00), /* Deep stand by in */ | ||
151 | }; | ||
152 | |||
153 | static uint32_t lcd_vga_pass_through[] = { | ||
154 | CMD1(0xB0, 0x16), | ||
155 | CMD1(0xBC, 0x80), | ||
156 | CMD1(0xE1, 0x00), | ||
157 | CMD1(0x36, 0x50), | ||
158 | CMD1(0x3B, 0x00), | ||
159 | }; | ||
160 | |||
161 | static uint32_t lcd_qvga_pass_through[] = { | ||
162 | CMD1(0xB0, 0x16), | ||
163 | CMD1(0xBC, 0x81), | ||
164 | CMD1(0xE1, 0x00), | ||
165 | CMD1(0x36, 0x50), | ||
166 | CMD1(0x3B, 0x22), | ||
167 | }; | ||
168 | |||
169 | static uint32_t lcd_vga_transfer[] = { | ||
170 | CMD1(0xcf, 0x02), /* Blanking period control (1) */ | ||
171 | CMD2(0xd0, 0x08, 0x04), /* Blanking period control (2) */ | ||
172 | CMD1(0xd1, 0x01), /* CKV timing control on/off */ | ||
173 | CMD2(0xd2, 0x14, 0x00), /* CKV 1,2 timing control */ | ||
174 | CMD2(0xd3, 0x1a, 0x0f), /* OEV timing control */ | ||
175 | CMD2(0xd4, 0x1f, 0xaf), /* ASW timing control (1) */ | ||
176 | CMD1(0xd5, 0x14), /* ASW timing control (2) */ | ||
177 | CMD0(0x21), /* Invert for normally black display */ | ||
178 | CMD0(0x29), /* Display on */ | ||
179 | }; | ||
180 | |||
181 | static uint32_t lcd_qvga_transfer[] = { | ||
182 | CMD1(0xd6, 0x02), /* Blanking period control (1) */ | ||
183 | CMD2(0xd7, 0x08, 0x04), /* Blanking period control (2) */ | ||
184 | CMD1(0xd8, 0x01), /* CKV timing control on/off */ | ||
185 | CMD2(0xd9, 0x00, 0x08), /* CKV 1,2 timing control */ | ||
186 | CMD2(0xde, 0x05, 0x0a), /* OEV timing control */ | ||
187 | CMD2(0xdf, 0x0a, 0x19), /* ASW timing control (1) */ | ||
188 | CMD1(0xe0, 0x0a), /* ASW timing control (2) */ | ||
189 | CMD0(0x21), /* Invert for normally black display */ | ||
190 | CMD0(0x29), /* Display on */ | ||
191 | }; | ||
192 | |||
193 | static uint32_t lcd_panel_config[] = { | ||
194 | CMD2(0xb8, 0xff, 0xf9), /* Output control */ | ||
195 | CMD0(0x11), /* sleep out */ | ||
196 | CMD1(0xba, 0x01), /* Display mode (1) */ | ||
197 | CMD1(0xbb, 0x00), /* Display mode (2) */ | ||
198 | CMD1(0x3a, 0x60), /* Display mode 18-bit RGB */ | ||
199 | CMD1(0xbf, 0x10), /* Drive system change control */ | ||
200 | CMD1(0xb1, 0x56), /* Booster operation setup */ | ||
201 | CMD1(0xb2, 0x33), /* Booster mode setup */ | ||
202 | CMD1(0xb3, 0x11), /* Booster frequency setup */ | ||
203 | CMD1(0xb4, 0x02), /* Op amp/system clock */ | ||
204 | CMD1(0xb5, 0x35), /* VCS voltage */ | ||
205 | CMD1(0xb6, 0x40), /* VCOM voltage */ | ||
206 | CMD1(0xb7, 0x03), /* External display signal */ | ||
207 | CMD1(0xbd, 0x00), /* ASW slew rate */ | ||
208 | CMD1(0xbe, 0x00), /* Dummy data for QuadData operation */ | ||
209 | CMD1(0xc0, 0x11), /* Sleep out FR count (A) */ | ||
210 | CMD1(0xc1, 0x11), /* Sleep out FR count (B) */ | ||
211 | CMD1(0xc2, 0x11), /* Sleep out FR count (C) */ | ||
212 | CMD2(0xc3, 0x20, 0x40), /* Sleep out FR count (D) */ | ||
213 | CMD2(0xc4, 0x60, 0xc0), /* Sleep out FR count (E) */ | ||
214 | CMD2(0xc5, 0x10, 0x20), /* Sleep out FR count (F) */ | ||
215 | CMD1(0xc6, 0xc0), /* Sleep out FR count (G) */ | ||
216 | CMD2(0xc7, 0x33, 0x43), /* Gamma 1 fine tuning (1) */ | ||
217 | CMD1(0xc8, 0x44), /* Gamma 1 fine tuning (2) */ | ||
218 | CMD1(0xc9, 0x33), /* Gamma 1 inclination adjustment */ | ||
219 | CMD1(0xca, 0x00), /* Gamma 1 blue offset adjustment */ | ||
220 | CMD2(0xec, 0x01, 0xf0), /* Horizontal clock cycles */ | ||
221 | }; | ||
222 | |||
223 | static void ssp_reconfig(struct ssp_dev *dev, int nparam) | ||
224 | { | ||
225 | static int last_nparam = -1; | ||
226 | |||
227 | /* check if it is necessary to re-config SSP */ | ||
228 | if (nparam == last_nparam) | ||
229 | return; | ||
230 | |||
231 | ssp_disable(dev); | ||
232 | ssp_config(dev, (nparam == 2) ? 0x0010058a : 0x00100581, 0x18, 0, 0); | ||
233 | |||
234 | last_nparam = nparam; | ||
235 | } | ||
236 | |||
237 | static void ssp_send_cmd(uint32_t *cmd, int num) | ||
238 | { | ||
239 | static int ssp_initialized; | ||
240 | static struct ssp_dev ssp2; | ||
241 | |||
242 | int i; | ||
243 | |||
244 | if (!ssp_initialized) { | ||
245 | ssp_init(&ssp2, 2, SSP_NO_IRQ); | ||
246 | ssp_initialized = 1; | ||
247 | } | ||
248 | |||
249 | clk_enable(ssp2.ssp->clk); | ||
250 | for (i = 0; i < num; i++, cmd++) { | ||
251 | ssp_reconfig(&ssp2, (*cmd >> 30) & 0x3); | ||
252 | ssp_write_word(&ssp2, *cmd & 0x3fffffff); | ||
253 | |||
254 | /* FIXME: ssp_flush() is mandatory here to work */ | ||
255 | ssp_flush(&ssp2); | ||
256 | } | ||
257 | clk_disable(ssp2.ssp->clk); | ||
258 | } | ||
259 | |||
260 | static void littleton_lcd_power(int on, struct fb_var_screeninfo *var) | ||
261 | { | ||
262 | if (on) { | ||
263 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_on)); | ||
264 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_reset)); | ||
265 | if (var->xres > 240) { | ||
266 | /* VGA */ | ||
267 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_pass_through)); | ||
268 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config)); | ||
269 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_vga_transfer)); | ||
270 | } else { | ||
271 | /* QVGA */ | ||
272 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_pass_through)); | ||
273 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_config)); | ||
274 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_qvga_transfer)); | ||
275 | } | ||
276 | } else | ||
277 | ssp_send_cmd(ARRAY_AND_SIZE(lcd_panel_off)); | ||
278 | } | ||
279 | |||
280 | static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = { | 128 | static struct pxafb_mode_info tpo_tdo24mtea1_modes[] = { |
281 | [0] = { | 129 | [0] = { |
282 | /* VGA */ | 130 | /* VGA */ |
@@ -312,7 +160,6 @@ static struct pxafb_mach_info littleton_lcd_info = { | |||
312 | .modes = tpo_tdo24mtea1_modes, | 160 | .modes = tpo_tdo24mtea1_modes, |
313 | .num_modes = 2, | 161 | .num_modes = 2, |
314 | .lcd_conn = LCD_COLOR_TFT_16BPP, | 162 | .lcd_conn = LCD_COLOR_TFT_16BPP, |
315 | .pxafb_lcd_power = littleton_lcd_power, | ||
316 | }; | 163 | }; |
317 | 164 | ||
318 | static void littleton_init_lcd(void) | 165 | static void littleton_init_lcd(void) |
@@ -323,6 +170,51 @@ static void littleton_init_lcd(void) | |||
323 | static inline void littleton_init_lcd(void) {}; | 170 | static inline void littleton_init_lcd(void) {}; |
324 | #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */ | 171 | #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */ |
325 | 172 | ||
173 | #if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE) | ||
174 | static struct pxa2xx_spi_master littleton_spi_info = { | ||
175 | .num_chipselect = 1, | ||
176 | }; | ||
177 | |||
178 | static void littleton_tdo24m_cs(u32 cmd) | ||
179 | { | ||
180 | gpio_set_value(LITTLETON_GPIO_LCD_CS, !(cmd == PXA2XX_CS_ASSERT)); | ||
181 | } | ||
182 | |||
183 | static struct pxa2xx_spi_chip littleton_tdo24m_chip = { | ||
184 | .rx_threshold = 1, | ||
185 | .tx_threshold = 1, | ||
186 | .cs_control = littleton_tdo24m_cs, | ||
187 | }; | ||
188 | |||
189 | static struct spi_board_info littleton_spi_devices[] __initdata = { | ||
190 | { | ||
191 | .modalias = "tdo24m", | ||
192 | .max_speed_hz = 1000000, | ||
193 | .bus_num = 2, | ||
194 | .chip_select = 0, | ||
195 | .controller_data= &littleton_tdo24m_chip, | ||
196 | }, | ||
197 | }; | ||
198 | |||
199 | static void __init littleton_init_spi(void) | ||
200 | { | ||
201 | int err; | ||
202 | |||
203 | err = gpio_request(LITTLETON_GPIO_LCD_CS, "LCD_CS"); | ||
204 | if (err) { | ||
205 | pr_warning("failed to request GPIO for LCS CS\n"); | ||
206 | return; | ||
207 | } | ||
208 | |||
209 | gpio_direction_output(LITTLETON_GPIO_LCD_CS, 1); | ||
210 | |||
211 | pxa2xx_set_spi_info(2, &littleton_spi_info); | ||
212 | spi_register_board_info(ARRAY_AND_SIZE(littleton_spi_devices)); | ||
213 | } | ||
214 | #else | ||
215 | static inline void littleton_init_spi(void) {} | ||
216 | #endif | ||
217 | |||
326 | #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE) | 218 | #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE) |
327 | static unsigned int littleton_matrix_key_map[] = { | 219 | static unsigned int littleton_matrix_key_map[] = { |
328 | /* KEY(row, col, key_code) */ | 220 | /* KEY(row, col, key_code) */ |
@@ -433,6 +325,7 @@ static void __init littleton_init(void) | |||
433 | */ | 325 | */ |
434 | platform_device_register(&smc91x_device); | 326 | platform_device_register(&smc91x_device); |
435 | 327 | ||
328 | littleton_init_spi(); | ||
436 | littleton_init_lcd(); | 329 | littleton_init_lcd(); |
437 | littleton_init_keypad(); | 330 | littleton_init_keypad(); |
438 | littleton_init_nand(); | 331 | littleton_init_nand(); |