]> git.ipfire.org Git - people/ms/u-boot.git/blob - board/aristainetos/aristainetos-v2.c
projects / people / ms / u-boot.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
arm, imx6, aristainetos2: set gpr register after reset
[people/ms/u-boot.git] / board / aristainetos / aristainetos-v2.c
1 /*
2 * (C) Copyright 2015
3 * Heiko Schocher, DENX Software Engineering, hs@denx.de.
4 *
5 * Based on:
6 * Copyright (C) 2012 Freescale Semiconductor, Inc.
7 *
8 * Author: Fabio Estevam <fabio.estevam@freescale.com>
9 *
10 * SPDX-License-Identifier: GPL-2.0+
11 */
12
13 #include <asm/arch/clock.h>
14 #include <asm/arch/imx-regs.h>
15 #include <asm/arch/iomux.h>
16 #include <asm/arch/mx6-pins.h>
17 #include <asm/errno.h>
18 #include <asm/gpio.h>
19 #include <asm/imx-common/iomux-v3.h>
20 #include <asm/imx-common/boot_mode.h>
21 #include <asm/imx-common/mxc_i2c.h>
22 #include <asm/imx-common/video.h>
23 #include <mmc.h>
24 #include <fsl_esdhc.h>
25 #include <miiphy.h>
26 #include <netdev.h>
27 #include <asm/arch/mxc_hdmi.h>
28 #include <asm/arch/crm_regs.h>
29 #include <linux/fb.h>
30 #include <ipu_pixfmt.h>
31 #include <asm/io.h>
32 #include <asm/arch/sys_proto.h>
33 #include <pwm.h>
34 #include <micrel.h>
35 #include <spi.h>
36 #include <video.h>
37 #include <../drivers/video/ipu.h>
38 #if defined(CONFIG_VIDEO_BMP_LOGO)
39 #include <bmp_logo.h>
40 #endif
41
42 #define USDHC2_PAD_CTRL (PAD_CTL_SPEED_LOW | \
43 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
44
45 #if (CONFIG_SYS_BOARD_VERSION == 2)
46 /* 4.3 display controller */
47 #define ECSPI1_CS0 IMX_GPIO_NR(4, 9)
48 #define ECSPI4_CS0 IMX_GPIO_NR(3, 29)
49 #elif (CONFIG_SYS_BOARD_VERSION == 3)
50 #define ECSPI1_CS0 IMX_GPIO_NR(2, 30) /* NOR flash */
51 /* 4.3 display controller */
52 #define ECSPI1_CS1 IMX_GPIO_NR(4, 10)
53 #endif
54
55 #define SOFT_RESET_GPIO IMX_GPIO_NR(7, 13)
56 #define SD2_DRIVER_ENABLE IMX_GPIO_NR(7, 8)
57
58 struct i2c_pads_info i2c_pad_info3 = {
59 .scl = {
60 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC,
61 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | PC,
62 .gp = IMX_GPIO_NR(1, 5)
63 },
64 .sda = {
65 .i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA | PC,
66 .gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06 | PC,
67 .gp = IMX_GPIO_NR(1, 6)
68 }
69 };
70
71 struct i2c_pads_info i2c_pad_info4 = {
72 .scl = {
73 .i2c_mode = MX6_PAD_GPIO_7__I2C4_SCL | PC,
74 .gpio_mode = MX6_PAD_GPIO_7__GPIO1_IO07 | PC,
75 .gp = IMX_GPIO_NR(1, 7)
76 },
77 .sda = {
78 .i2c_mode = MX6_PAD_GPIO_8__I2C4_SDA | PC,
79 .gpio_mode = MX6_PAD_GPIO_8__GPIO1_IO08 | PC,
80 .gp = IMX_GPIO_NR(1, 8)
81 }
82 };
83
84 iomux_v3_cfg_t const uart1_pads[] = {
85 MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
86 MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
87 MX6_PAD_EIM_D19__UART1_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
88 MX6_PAD_EIM_D20__UART1_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
89 };
90
91 iomux_v3_cfg_t const uart2_pads[] = {
92 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
93 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
94 };
95
96 iomux_v3_cfg_t const uart3_pads[] = {
97 MX6_PAD_EIM_D24__UART3_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
98 MX6_PAD_EIM_D25__UART3_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
99 MX6_PAD_EIM_D31__UART3_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
100 MX6_PAD_EIM_D23__UART3_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
101 };
102
103 iomux_v3_cfg_t const uart4_pads[] = {
104 MX6_PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
105 MX6_PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
106 };
107
108 iomux_v3_cfg_t const gpio_pads[] = {
109 /* LED enable*/
110 MX6_PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL),
111 /* LED yellow */
112 MX6_PAD_NANDF_CS3__GPIO6_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL),
113 /* LED red */
114 #if (CONFIG_SYS_BOARD_VERSION == 2)
115 MX6_PAD_EIM_EB0__GPIO2_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
116 #elif (CONFIG_SYS_BOARD_VERSION == 3)
117 MX6_PAD_EIM_WAIT__GPIO5_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL),
118 #endif
119 /* LED green */
120 MX6_PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
121 /* LED blue */
122 MX6_PAD_EIM_EB1__GPIO2_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
123 /* spi flash WP protect */
124 MX6_PAD_SD4_DAT7__GPIO2_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
125 /* spi CS 0 */
126 MX6_PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
127 /* spi bus #2 SS driver enable */
128 MX6_PAD_EIM_A23__GPIO6_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL),
129 /* RST_LOC# PHY reset input (has pull-down!)*/
130 MX6_PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL),
131 /* SD 2 level shifter output enable */
132 MX6_PAD_SD3_RST__GPIO7_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
133 /* SD1 card detect input */
134 MX6_PAD_ENET_RXD0__GPIO1_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL),
135 /* SD1 write protect input */
136 MX6_PAD_DI0_PIN4__GPIO4_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL),
137 /* SD2 card detect input */
138 MX6_PAD_GPIO_19__GPIO4_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
139 /* SD2 write protect input */
140 MX6_PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
141 /* Touchscreen IRQ */
142 MX6_PAD_SD4_DAT1__GPIO2_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
143 };
144
145 static iomux_v3_cfg_t const misc_pads[] = {
146 /* USB_OTG_ID = GPIO1_24*/
147 MX6_PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
148 /* H1 Power enable = GPIO1_0*/
149 MX6_PAD_GPIO_0__USB_H1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
150 /* OTG Power enable = GPIO4_15*/
151 MX6_PAD_KEY_ROW4__USB_OTG_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
152 };
153
154 iomux_v3_cfg_t const enet_pads[] = {
155 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
156 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
157 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
158 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
159 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
160 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
161 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
162 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
163 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
164 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
165 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
166 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
167 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
168 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
169 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
170 };
171
172 static iomux_v3_cfg_t const backlight_pads[] = {
173 /* backlight PWM brightness control */
174 MX6_PAD_GPIO_9__PWM1_OUT | MUX_PAD_CTRL(NO_PAD_CTRL),
175 /* backlight enable */
176 MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL),
177 /* LCD power enable */
178 MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
179 };
180
181 static iomux_v3_cfg_t const ecspi1_pads[] = {
182 MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
183 MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
184 MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
185 #if (CONFIG_SYS_BOARD_VERSION == 2)
186 MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(SPI_PAD_CTRL),
187 #elif (CONFIG_SYS_BOARD_VERSION == 3)
188 MX6_PAD_EIM_EB2__GPIO2_IO30 | MUX_PAD_CTRL(SPI_PAD_CTRL),
189 MX6_PAD_KEY_COL2__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
190 #endif
191 };
192
193 static void setup_iomux_enet(void)
194 {
195 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
196 }
197
198 #if (CONFIG_SYS_BOARD_VERSION == 2)
199 iomux_v3_cfg_t const ecspi4_pads[] = {
200 MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(NO_PAD_CTRL),
201 MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(NO_PAD_CTRL),
202 MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(NO_PAD_CTRL),
203 MX6_PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL),
204 MX6_PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
205 };
206 #endif
207
208 static iomux_v3_cfg_t const display_pads[] = {
209 MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(DISP_PAD_CTRL),
210 MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
211 MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02,
212 MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03,
213 MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
214 MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
215 MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
216 MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
217 MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
218 MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
219 MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
220 MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
221 MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
222 MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
223 MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
224 MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
225 MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
226 MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
227 MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
228 MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
229 MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
230 MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
231 MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18,
232 MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19,
233 MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20,
234 MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21,
235 MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22,
236 MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
237 };
238
239 int board_spi_cs_gpio(unsigned bus, unsigned cs)
240 {
241 if (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
242 #if (CONFIG_SYS_BOARD_VERSION == 2)
243 return IMX_GPIO_NR(5, 2);
244
245 if (bus == 0 && cs == 0)
246 return IMX_GPIO_NR(4, 9);
247 #elif (CONFIG_SYS_BOARD_VERSION == 3)
248 return ECSPI1_CS0;
249
250 if (bus == 0 && cs == 1)
251 return ECSPI1_CS1;
252 #endif
253 return -1;
254 }
255
256 static void setup_spi(void)
257 {
258 int i;
259
260 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
261
262 #if (CONFIG_SYS_BOARD_VERSION == 2)
263 imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
264 #endif
265
266 for (i = 0; i < 4; i++)
267 enable_spi_clk(true, i);
268
269 gpio_direction_output(ECSPI1_CS0, 1);
270 #if (CONFIG_SYS_BOARD_VERSION == 2)
271 gpio_direction_output(ECSPI4_CS1, 0);
272 /* set cs0 to high (second device on spi bus #4) */
273 gpio_direction_output(ECSPI4_CS0, 1);
274 #elif (CONFIG_SYS_BOARD_VERSION == 3)
275 gpio_direction_output(ECSPI1_CS1, 1);
276 #endif
277 }
278
279 static void setup_iomux_uart(void)
280 {
281 switch (CONFIG_MXC_UART_BASE) {
282 case UART1_BASE:
283 imx_iomux_v3_setup_multiple_pads(uart1_pads,
284 ARRAY_SIZE(uart1_pads));
285 break;
286 case UART2_BASE:
287 imx_iomux_v3_setup_multiple_pads(uart2_pads,
288 ARRAY_SIZE(uart2_pads));
289 break;
290 case UART3_BASE:
291 imx_iomux_v3_setup_multiple_pads(uart3_pads,
292 ARRAY_SIZE(uart3_pads));
293 break;
294 case UART4_BASE:
295 imx_iomux_v3_setup_multiple_pads(uart4_pads,
296 ARRAY_SIZE(uart4_pads));
297 break;
298 }
299 }
300
301 int board_phy_config(struct phy_device *phydev)
302 {
303 /* control data pad skew - devaddr = 0x02, register = 0x04 */
304 ksz9031_phy_extended_write(phydev, 0x02,
305 MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
306 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
307 /* rx data pad skew - devaddr = 0x02, register = 0x05 */
308 ksz9031_phy_extended_write(phydev, 0x02,
309 MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
310 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
311 /* tx data pad skew - devaddr = 0x02, register = 0x06 */
312 ksz9031_phy_extended_write(phydev, 0x02,
313 MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
314 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
315 /* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
316 ksz9031_phy_extended_write(phydev, 0x02,
317 MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
318 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
319
320 if (phydev->drv->config)
321 phydev->drv->config(phydev);
322
323 return 0;
324 }
325
326 int board_eth_init(bd_t *bis)
327 {
328 setup_iomux_enet();
329 return cpu_eth_init(bis);
330 }
331
332 static int rotate_logo_one(unsigned char *out, unsigned char *in)
333 {
334 int i, j;
335
336 for (i = 0; i < BMP_LOGO_WIDTH; i++)
337 for (j = 0; j < BMP_LOGO_HEIGHT; j++)
338 out[j * BMP_LOGO_WIDTH + BMP_LOGO_HEIGHT - 1 - i] =
339 in[i * BMP_LOGO_WIDTH + j];
340 return 0;
341 }
342
343 /*
344 * Rotate the BMP_LOGO (only)
345 * Will only work, if the logo is square, as
346 * BMP_LOGO_HEIGHT and BMP_LOGO_WIDTH are defines, not variables
347 */
348 void rotate_logo(int rotations)
349 {
350 unsigned char out_logo[BMP_LOGO_WIDTH * BMP_LOGO_HEIGHT];
351 unsigned char *in_logo;
352 int i, j;
353
354 if (BMP_LOGO_WIDTH != BMP_LOGO_HEIGHT)
355 return;
356
357 in_logo = bmp_logo_bitmap;
358
359 /* one 90 degree rotation */
360 if (rotations == 1 || rotations == 2 || rotations == 3)
361 rotate_logo_one(out_logo, in_logo);
362
363 /* second 90 degree rotation */
364 if (rotations == 2 || rotations == 3)
365 rotate_logo_one(in_logo, out_logo);
366
367 /* third 90 degree rotation */
368 if (rotations == 3)
369 rotate_logo_one(out_logo, in_logo);
370
371 /* copy result back to original array */
372 if (rotations == 1 || rotations == 3)
373 for (i = 0; i < BMP_LOGO_WIDTH; i++)
374 for (j = 0; j < BMP_LOGO_HEIGHT; j++)
375 in_logo[i * BMP_LOGO_WIDTH + j] =
376 out_logo[i * BMP_LOGO_WIDTH + j];
377 }
378
379 static void enable_display_power(void)
380 {
381 imx_iomux_v3_setup_multiple_pads(backlight_pads,
382 ARRAY_SIZE(backlight_pads));
383
384 /* backlight enable */
385 gpio_direction_output(IMX_GPIO_NR(6, 31), 1);
386 /* LCD power enable */
387 gpio_direction_output(IMX_GPIO_NR(6, 15), 1);
388
389 /* enable backlight PWM 1 */
390 if (pwm_init(0, 0, 0))
391 goto error;
392 /* duty cycle 500ns, period: 3000ns */
393 if (pwm_config(0, 50000, 300000))
394 goto error;
395 if (pwm_enable(0))
396 goto error;
397 return;
398
399 error:
400 puts("error init pwm for backlight\n");
401 return;
402 }
403
404 static void enable_lvds(struct display_info_t const *dev)
405 {
406 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
407 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
408 int reg;
409 s32 timeout = 100000;
410
411 /* set PLL5 clock */
412 reg = readl(&ccm->analog_pll_video);
413 reg |= BM_ANADIG_PLL_VIDEO_POWERDOWN;
414 writel(reg, &ccm->analog_pll_video);
415
416 /* set PLL5 to 232720000Hz */
417 reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
418 reg |= BF_ANADIG_PLL_VIDEO_DIV_SELECT(0x26);
419 reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
420 reg |= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(0);
421 writel(reg, &ccm->analog_pll_video);
422
423 writel(BF_ANADIG_PLL_VIDEO_NUM_A(0xC0238),
424 &ccm->analog_pll_video_num);
425 writel(BF_ANADIG_PLL_VIDEO_DENOM_B(0xF4240),
426 &ccm->analog_pll_video_denom);
427
428 reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
429 writel(reg, &ccm->analog_pll_video);
430
431 while (timeout--)
432 if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
433 break;
434 if (timeout < 0)
435 printf("Warning: video pll lock timeout!\n");
436
437 reg = readl(&ccm->analog_pll_video);
438 reg |= BM_ANADIG_PLL_VIDEO_ENABLE;
439 reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
440 writel(reg, &ccm->analog_pll_video);
441
442 /* set LDB0, LDB1 clk select to 000/000 (PLL5 clock) */
443 reg = readl(&ccm->cs2cdr);
444 reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
445 | MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
446 reg |= (0 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
447 | (0 << MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
448 writel(reg, &ccm->cs2cdr);
449
450 reg = readl(&ccm->cscmr2);
451 reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
452 writel(reg, &ccm->cscmr2);
453
454 reg = readl(&ccm->chsccdr);
455 reg |= (CHSCCDR_CLK_SEL_LDB_DI0
456 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
457 writel(reg, &ccm->chsccdr);
458
459 reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
460 | IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
461 | IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_HIGH
462 | IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
463 | IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT
464 | IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
465 | IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
466 writel(reg, &iomux->gpr[2]);
467
468 reg = readl(&iomux->gpr[3]);
469 reg = (reg & ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK)
470 | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
471 << IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
472 writel(reg, &iomux->gpr[3]);
473
474 return;
475 }
476
477 static void enable_spi_display(struct display_info_t const *dev)
478 {
479 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
480 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
481 int reg;
482 s32 timeout = 100000;
483
484 #if defined(CONFIG_VIDEO_BMP_LOGO)
485 rotate_logo(3); /* portrait display in landscape mode */
486 #endif
487
488 /*
489 * set ldb clock to 28341000 Hz calculated through the formula:
490 * (XRES + LEFT_M + RIGHT_M + HSYNC_LEN) *
491 * (YRES + UPPER_M + LOWER_M + VSYNC_LEN) * REFRESH)
492 * see:
493 * https://community.freescale.com/thread/308170
494 */
495 ipu_set_ldb_clock(28341000);
496
497 reg = readl(&ccm->cs2cdr);
498
499 /* select pll 5 clock */
500 reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
501 | MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
502 writel(reg, &ccm->cs2cdr);
503
504 /* set PLL5 to 197994996Hz */
505 reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
506 reg |= BF_ANADIG_PLL_VIDEO_DIV_SELECT(0x21);
507 reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
508 reg |= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(0);
509 writel(reg, &ccm->analog_pll_video);
510
511 writel(BF_ANADIG_PLL_VIDEO_NUM_A(0xfbf4),
512 &ccm->analog_pll_video_num);
513 writel(BF_ANADIG_PLL_VIDEO_DENOM_B(0xf4240),
514 &ccm->analog_pll_video_denom);
515
516 reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
517 writel(reg, &ccm->analog_pll_video);
518
519 while (timeout--)
520 if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
521 break;
522 if (timeout < 0)
523 printf("Warning: video pll lock timeout!\n");
524
525 reg = readl(&ccm->analog_pll_video);
526 reg |= BM_ANADIG_PLL_VIDEO_ENABLE;
527 reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
528 writel(reg, &ccm->analog_pll_video);
529
530 /* set LDB0, LDB1 clk select to 000/000 (PLL5 clock) */
531 reg = readl(&ccm->cs2cdr);
532 reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
533 | MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
534 reg |= (0 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
535 | (0 << MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
536 writel(reg, &ccm->cs2cdr);
537
538 reg = readl(&ccm->cscmr2);
539 reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
540 writel(reg, &ccm->cscmr2);
541
542 reg = readl(&ccm->chsccdr);
543 reg |= (CHSCCDR_CLK_SEL_LDB_DI0
544 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
545 reg &= ~MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK;
546 reg |= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET);
547 reg &= ~MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK;
548 reg |= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET);
549 writel(reg, &ccm->chsccdr);
550
551 reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
552 | IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
553 | IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_HIGH
554 | IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
555 | IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT
556 | IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
557 | IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
558 writel(reg, &iomux->gpr[2]);
559
560 reg = readl(&iomux->gpr[3]);
561 reg = (reg & ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK)
562 | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
563 << IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
564 writel(reg, &iomux->gpr[3]);
565
566 imx_iomux_v3_setup_multiple_pads(
567 display_pads,
568 ARRAY_SIZE(display_pads));
569
570 return;
571 }
572 static void setup_display(void)
573 {
574 enable_ipu_clock();
575 enable_display_power();
576 }
577
578 static void setup_iomux_gpio(void)
579 {
580 imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
581 }
582
583 static void set_gpr_register(void)
584 {
585 struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
586
587 writel(IOMUXC_GPR1_APP_CLK_REQ_N | IOMUXC_GPR1_PCIE_RDY_L23 |
588 IOMUXC_GPR1_EXC_MON_SLVE |
589 (2 << IOMUXC_GPR1_ADDRS0_OFFSET) |
590 IOMUXC_GPR1_ACT_CS0,
591 &iomuxc_regs->gpr[1]);
592 writel(0x0, &iomuxc_regs->gpr[8]);
593 writel(IOMUXC_GPR12_ARMP_IPG_CLK_EN | IOMUXC_GPR12_ARMP_AHB_CLK_EN |
594 IOMUXC_GPR12_ARMP_ATB_CLK_EN | IOMUXC_GPR12_ARMP_APB_CLK_EN,
595 &iomuxc_regs->gpr[12]);
596 }
597
598 int board_early_init_f(void)
599 {
600 setup_iomux_uart();
601 setup_iomux_gpio();
602
603 gpio_direction_output(SOFT_RESET_GPIO, 1);
604 gpio_direction_output(SD2_DRIVER_ENABLE, 1);
605 setup_display();
606 set_gpr_register();
607 return 0;
608 }
609
610 static void setup_i2c4(void)
611 {
612 setup_i2c(3, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
613 &i2c_pad_info4);
614 }
615
616 static void setup_board_gpio(void)
617 {
618 /* enable all LEDs */
619 gpio_request(IMX_GPIO_NR(2, 13), "LED ena"); /* 25 */
620 gpio_direction_output(IMX_GPIO_NR(1, 25), 0);
621
622 /* switch off Status LEDs */
623 #if (CONFIG_SYS_BOARD_VERSION == 2)
624 gpio_request(IMX_GPIO_NR(6, 16), "LED yellow"); /* 176 */
625 gpio_direction_output(IMX_GPIO_NR(6, 16), 1);
626 gpio_request(IMX_GPIO_NR(2, 28), "LED red"); /* 60 */
627 gpio_direction_output(IMX_GPIO_NR(2, 28), 1);
628 gpio_request(IMX_GPIO_NR(5, 4), "LED green"); /* 132 */
629 gpio_direction_output(IMX_GPIO_NR(5, 4), 1);
630 gpio_request(IMX_GPIO_NR(2, 29), "LED blue"); /* 61 */
631 gpio_direction_output(IMX_GPIO_NR(2, 29), 1);
632 #elif (CONFIG_SYS_BOARD_VERSION == 3)
633 gpio_request(IMX_GPIO_NR(6, 16), "LED yellow"); /* 176 */
634 gpio_direction_output(IMX_GPIO_NR(6, 16), 0);
635 gpio_request(IMX_GPIO_NR(5, 0), "LED red"); /* 128 */
636 gpio_direction_output(IMX_GPIO_NR(5, 0), 0);
637 gpio_request(IMX_GPIO_NR(5, 4), "LED green"); /* 132 */
638 gpio_direction_output(IMX_GPIO_NR(5, 4), 0);
639 gpio_request(IMX_GPIO_NR(2, 29), "LED blue"); /* 61 */
640 gpio_direction_output(IMX_GPIO_NR(2, 29), 0);
641 #endif
642 }
643
644 static void setup_board_spi(void)
645 {
646 /* enable spi bus #2 SS drivers (and spi bus #4 SS1 for rev2b) */
647 gpio_direction_output(IMX_GPIO_NR(6, 6), 1);
648 }
649
650 int board_late_init(void)
651 {
652 char *my_bootdelay;
653 char bootmode = 0;
654 char const *panel = getenv("panel");
655
656 /*
657 * Check the boot-source. If booting from NOR Flash,
658 * disable bootdelay
659 */
660 gpio_request(IMX_GPIO_NR(7, 6), "bootsel0");
661 gpio_direction_input(IMX_GPIO_NR(7, 6));
662 gpio_request(IMX_GPIO_NR(7, 7), "bootsel1");
663 gpio_direction_input(IMX_GPIO_NR(7, 7));
664 gpio_request(IMX_GPIO_NR(7, 1), "bootsel2");
665 gpio_direction_input(IMX_GPIO_NR(7, 1));
666 bootmode |= (gpio_get_value(IMX_GPIO_NR(7, 6)) ? 1 : 0) << 0;
667 bootmode |= (gpio_get_value(IMX_GPIO_NR(7, 7)) ? 1 : 0) << 1;
668 bootmode |= (gpio_get_value(IMX_GPIO_NR(7, 1)) ? 1 : 0) << 2;
669
670 if (bootmode == 7) {
671 my_bootdelay = getenv("nor_bootdelay");
672 if (my_bootdelay != NULL)
673 setenv("bootdelay", my_bootdelay);
674 else
675 setenv("bootdelay", "-2");
676 }
677
678 /* if we have the lg panel, we can initialze it now */
679 if (panel)
680 if (!strcmp(panel, displays[1].mode.name))
681 lg4573_spi_startup(CONFIG_LG4573_BUS,
682 CONFIG_LG4573_CS,
683 10000000, SPI_MODE_0);
684
685 return 0;
686 }
"Das U-Boot" Source Tree