1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2014 Eukréa Electromatique
4 * Author: Eric Bénard <eric@eukrea.com>
5 * Fabio Estevam <fabio.estevam@freescale.com>
6 * Jon Nettleton <jon.nettleton@gmail.com>
7 *
8 * based on sabresd.c which is :
9 * Copyright (C) 2012 Freescale Semiconductor, Inc.
10 * and on hummingboard.c which is :
11 * Copyright (C) 2013 SolidRun ltd.
12 * Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>.
13 */
14
15 #include <asm/arch/clock.h>
16 #include <asm/arch/sys_proto.h>
17 #include <asm/arch/imx-regs.h>
18 #include <asm/arch/iomux.h>
19 #include <asm/arch/mx6-pins.h>
20 #include <linux/errno.h>
21 #include <asm/gpio.h>
22 #include <asm/mach-imx/iomux-v3.h>
23 #include <asm/mach-imx/boot_mode.h>
24 #include <asm/mach-imx/mxc_i2c.h>
25 #include <asm/mach-imx/spi.h>
26 #include <asm/mach-imx/video.h>
27 #include <i2c.h>
28 #include <input.h>
29 #include <mmc.h>
30 #include <fsl_esdhc.h>
31 #include <miiphy.h>
32 #include <netdev.h>
33 #include <asm/arch/mxc_hdmi.h>
34 #include <asm/arch/crm_regs.h>
35 #include <linux/fb.h>
36 #include <ipu_pixfmt.h>
37 #include <asm/io.h>
38
39 DECLARE_GLOBAL_DATA_PTR;
40
41 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
42 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
43 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
44
45 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
46 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
47 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
48
49 #define USDHC_PAD_CLK_CTRL (PAD_CTL_SPEED_LOW | \
50 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | \
51 PAD_CTL_HYS)
52
53 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
54 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
55
56 #define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
57 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
58
59 #define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
60 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
61
62 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
63 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
64 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
65
66 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
67 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
68
69 static int board_type = -1;
70 #define BOARD_IS_MARSBOARD 0
71 #define BOARD_IS_RIOTBOARD 1
72
dram_init(void)73 int dram_init(void)
74 {
75 gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
76
77 return 0;
78 }
79
80 static iomux_v3_cfg_t const uart2_pads[] = {
81 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
82 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
83 };
84
setup_iomux_uart(void)85 static void setup_iomux_uart(void)
86 {
87 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
88 }
89
90 iomux_v3_cfg_t const enet_pads[] = {
91 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
92 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
93 /* GPIO16 -> AR8035 25MHz */
94 MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(NO_PAD_CTRL),
95 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(NO_PAD_CTRL),
96 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
97 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
98 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
99 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
100 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
101 /* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
102 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
103 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
104 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
105 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
106 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
107 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
108 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
109 /* AR8035 PHY Reset */
110 MX6_PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
111 /* AR8035 PHY Interrupt */
112 MX6_PAD_ENET_TX_EN__GPIO1_IO28 | MUX_PAD_CTRL(ENET_PAD_CTRL),
113 };
114
setup_iomux_enet(void)115 static void setup_iomux_enet(void)
116 {
117 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
118
119 /* Reset AR8035 PHY */
120 gpio_direction_output(IMX_GPIO_NR(3, 31) , 0);
121 mdelay(2);
122 gpio_set_value(IMX_GPIO_NR(3, 31), 1);
123 }
124
mx6_rgmii_rework(struct phy_device * phydev)125 int mx6_rgmii_rework(struct phy_device *phydev)
126 {
127 /* from linux/arch/arm/mach-imx/mach-imx6q.c :
128 * Ar803x phy SmartEEE feature cause link status generates glitch,
129 * which cause ethernet link down/up issue, so disable SmartEEE
130 */
131 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
132 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x805d);
133 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4003);
134
135 return 0;
136 }
137
board_phy_config(struct phy_device * phydev)138 int board_phy_config(struct phy_device *phydev)
139 {
140 mx6_rgmii_rework(phydev);
141
142 if (phydev->drv->config)
143 phydev->drv->config(phydev);
144
145 return 0;
146 }
147
148 iomux_v3_cfg_t const usdhc2_pads[] = {
149 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL),
150 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
151 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
152 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
153 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
154 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
155 MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), /* WP */
156 MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
157 };
158
159 iomux_v3_cfg_t const usdhc3_pads[] = {
160 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL),
161 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
162 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
163 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
164 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
165 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
166 };
167
168 iomux_v3_cfg_t const riotboard_usdhc3_pads[] = {
169 MX6_PAD_SD3_DAT4__GPIO7_IO01 | MUX_PAD_CTRL(NO_PAD_CTRL), /* WP */
170 MX6_PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
171 };
172
173 iomux_v3_cfg_t const usdhc4_pads[] = {
174 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL),
175 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
176 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
177 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
178 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
179 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
180 /* eMMC RST */
181 MX6_PAD_NANDF_ALE__GPIO6_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL),
182 };
183
184 #ifdef CONFIG_FSL_ESDHC
185 struct fsl_esdhc_cfg usdhc_cfg[3] = {
186 {USDHC2_BASE_ADDR},
187 {USDHC3_BASE_ADDR},
188 {USDHC4_BASE_ADDR},
189 };
190
191 #define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
192 #define USDHC3_CD_GPIO IMX_GPIO_NR(7, 0)
193
board_mmc_getcd(struct mmc * mmc)194 int board_mmc_getcd(struct mmc *mmc)
195 {
196 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
197 int ret = 0;
198
199 switch (cfg->esdhc_base) {
200 case USDHC2_BASE_ADDR:
201 ret = !gpio_get_value(USDHC2_CD_GPIO);
202 break;
203 case USDHC3_BASE_ADDR:
204 if (board_type == BOARD_IS_RIOTBOARD)
205 ret = !gpio_get_value(USDHC3_CD_GPIO);
206 else if (board_type == BOARD_IS_MARSBOARD)
207 ret = 1; /* eMMC/uSDHC3 is always present */
208 break;
209 case USDHC4_BASE_ADDR:
210 ret = 1; /* eMMC/uSDHC4 is always present */
211 break;
212 }
213
214 return ret;
215 }
216
board_mmc_init(bd_t * bis)217 int board_mmc_init(bd_t *bis)
218 {
219 int ret;
220 int i;
221
222 /*
223 * According to the board_mmc_init() the following map is done:
224 * (U-Boot device node) (Physical Port)
225 * ** RiOTboard :
226 * mmc0 SDCard slot (bottom)
227 * mmc1 uSDCard slot (top)
228 * mmc2 eMMC
229 * ** MarSBoard :
230 * mmc0 uSDCard slot (bottom)
231 * mmc1 eMMC
232 */
233 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
234 switch (i) {
235 case 0:
236 imx_iomux_v3_setup_multiple_pads(
237 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
238 gpio_direction_input(USDHC2_CD_GPIO);
239 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
240 usdhc_cfg[0].max_bus_width = 4;
241 break;
242 case 1:
243 imx_iomux_v3_setup_multiple_pads(
244 usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
245 if (board_type == BOARD_IS_RIOTBOARD) {
246 imx_iomux_v3_setup_multiple_pads(
247 riotboard_usdhc3_pads,
248 ARRAY_SIZE(riotboard_usdhc3_pads));
249 gpio_direction_input(USDHC3_CD_GPIO);
250 } else {
251 gpio_direction_output(IMX_GPIO_NR(7, 8) , 0);
252 udelay(250);
253 gpio_set_value(IMX_GPIO_NR(7, 8), 1);
254 }
255 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
256 usdhc_cfg[1].max_bus_width = 4;
257 break;
258 case 2:
259 imx_iomux_v3_setup_multiple_pads(
260 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
261 usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
262 usdhc_cfg[2].max_bus_width = 4;
263 gpio_direction_output(IMX_GPIO_NR(6, 8) , 0);
264 udelay(250);
265 gpio_set_value(IMX_GPIO_NR(6, 8), 1);
266 break;
267 default:
268 printf("Warning: you configured more USDHC controllers"
269 "(%d) then supported by the board (%d)\n",
270 i + 1, CONFIG_SYS_FSL_USDHC_NUM);
271 return -EINVAL;
272 }
273
274 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
275 if (ret)
276 return ret;
277 }
278
279 return 0;
280 }
281 #endif
282
283 #ifdef CONFIG_MXC_SPI
284 iomux_v3_cfg_t const ecspi1_pads[] = {
285 MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
286 MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
287 MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
288 MX6_PAD_EIM_EB2__GPIO2_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL),
289 };
290
board_spi_cs_gpio(unsigned bus,unsigned cs)291 int board_spi_cs_gpio(unsigned bus, unsigned cs)
292 {
293 return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(2, 30)) : -1;
294 }
295
setup_spi(void)296 static void setup_spi(void)
297 {
298 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
299 }
300 #endif
301
302 struct i2c_pads_info i2c_pad_info1 = {
303 .scl = {
304 .i2c_mode = MX6_PAD_CSI0_DAT9__I2C1_SCL
305 | MUX_PAD_CTRL(I2C_PAD_CTRL),
306 .gpio_mode = MX6_PAD_CSI0_DAT9__GPIO5_IO27
307 | MUX_PAD_CTRL(I2C_PAD_CTRL),
308 .gp = IMX_GPIO_NR(5, 27)
309 },
310 .sda = {
311 .i2c_mode = MX6_PAD_CSI0_DAT8__I2C1_SDA
312 | MUX_PAD_CTRL(I2C_PAD_CTRL),
313 .gpio_mode = MX6_PAD_CSI0_DAT8__GPIO5_IO26
314 | MUX_PAD_CTRL(I2C_PAD_CTRL),
315 .gp = IMX_GPIO_NR(5, 26)
316 }
317 };
318
319 struct i2c_pads_info i2c_pad_info2 = {
320 .scl = {
321 .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL
322 | MUX_PAD_CTRL(I2C_PAD_CTRL),
323 .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12
324 | MUX_PAD_CTRL(I2C_PAD_CTRL),
325 .gp = IMX_GPIO_NR(4, 12)
326 },
327 .sda = {
328 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA
329 | MUX_PAD_CTRL(I2C_PAD_CTRL),
330 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13
331 | MUX_PAD_CTRL(I2C_PAD_CTRL),
332 .gp = IMX_GPIO_NR(4, 13)
333 }
334 };
335
336 struct i2c_pads_info i2c_pad_info3 = {
337 .scl = {
338 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL
339 | MUX_PAD_CTRL(I2C_PAD_CTRL),
340 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05
341 | MUX_PAD_CTRL(I2C_PAD_CTRL),
342 .gp = IMX_GPIO_NR(1, 5)
343 },
344 .sda = {
345 .i2c_mode = MX6_PAD_GPIO_6__I2C3_SDA
346 | MUX_PAD_CTRL(I2C_PAD_CTRL),
347 .gpio_mode = MX6_PAD_GPIO_6__GPIO1_IO06
348 | MUX_PAD_CTRL(I2C_PAD_CTRL),
349 .gp = IMX_GPIO_NR(1, 6)
350 }
351 };
352
353 iomux_v3_cfg_t const tft_pads_riot[] = {
354 /* LCD_PWR_EN */
355 MX6_PAD_ENET_TXD1__GPIO1_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
356 /* TOUCH_INT */
357 MX6_PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL),
358 /* LED_PWR_EN */
359 MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
360 /* BL LEVEL */
361 MX6_PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
362 };
363
364 iomux_v3_cfg_t const tft_pads_mars[] = {
365 /* LCD_PWR_EN */
366 MX6_PAD_ENET_TXD1__GPIO1_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
367 /* TOUCH_INT */
368 MX6_PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL),
369 /* LED_PWR_EN */
370 MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
371 /* BL LEVEL (PWM4) */
372 MX6_PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL),
373 };
374
375 #if defined(CONFIG_VIDEO_IPUV3)
376
enable_lvds(struct display_info_t const * dev)377 static void enable_lvds(struct display_info_t const *dev)
378 {
379 struct iomuxc *iomux = (struct iomuxc *)
380 IOMUXC_BASE_ADDR;
381 setbits_le32(&iomux->gpr[2],
382 IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT);
383 /* set backlight level to ON */
384 if (board_type == BOARD_IS_RIOTBOARD)
385 gpio_direction_output(IMX_GPIO_NR(1, 18) , 1);
386 else if (board_type == BOARD_IS_MARSBOARD)
387 gpio_direction_output(IMX_GPIO_NR(2, 10) , 1);
388 }
389
disable_lvds(struct display_info_t const * dev)390 static void disable_lvds(struct display_info_t const *dev)
391 {
392 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
393
394 /* set backlight level to OFF */
395 if (board_type == BOARD_IS_RIOTBOARD)
396 gpio_direction_output(IMX_GPIO_NR(1, 18) , 0);
397 else if (board_type == BOARD_IS_MARSBOARD)
398 gpio_direction_output(IMX_GPIO_NR(2, 10) , 0);
399
400 clrbits_le32(&iomux->gpr[2],
401 IOMUXC_GPR2_LVDS_CH0_MODE_MASK);
402 }
403
do_enable_hdmi(struct display_info_t const * dev)404 static void do_enable_hdmi(struct display_info_t const *dev)
405 {
406 disable_lvds(dev);
407 imx_enable_hdmi_phy();
408 }
409
detect_i2c(struct display_info_t const * dev)410 static int detect_i2c(struct display_info_t const *dev)
411 {
412 return (0 == i2c_set_bus_num(dev->bus)) &&
413 (0 == i2c_probe(dev->addr));
414 }
415
416 struct display_info_t const displays[] = {{
417 .bus = -1,
418 .addr = 0,
419 .pixfmt = IPU_PIX_FMT_RGB24,
420 .detect = detect_hdmi,
421 .enable = do_enable_hdmi,
422 .mode = {
423 .name = "HDMI",
424 .refresh = 60,
425 .xres = 1024,
426 .yres = 768,
427 .pixclock = 15385,
428 .left_margin = 220,
429 .right_margin = 40,
430 .upper_margin = 21,
431 .lower_margin = 7,
432 .hsync_len = 60,
433 .vsync_len = 10,
434 .sync = FB_SYNC_EXT,
435 .vmode = FB_VMODE_NONINTERLACED
436 } }, {
437 .bus = 2,
438 .addr = 0x1,
439 .pixfmt = IPU_PIX_FMT_LVDS666,
440 .detect = detect_i2c,
441 .enable = enable_lvds,
442 .mode = {
443 .name = "LCD8000-97C",
444 .refresh = 60,
445 .xres = 1024,
446 .yres = 768,
447 .pixclock = 15385,
448 .left_margin = 100,
449 .right_margin = 200,
450 .upper_margin = 10,
451 .lower_margin = 20,
452 .hsync_len = 20,
453 .vsync_len = 8,
454 .sync = FB_SYNC_EXT,
455 .vmode = FB_VMODE_NONINTERLACED
456 } } };
457 size_t display_count = ARRAY_SIZE(displays);
458
setup_display(void)459 static void setup_display(void)
460 {
461 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
462 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
463 int reg;
464
465 enable_ipu_clock();
466 imx_setup_hdmi();
467
468 /* Turn on LDB0, IPU,IPU DI0 clocks */
469 setbits_le32(&mxc_ccm->CCGR3,
470 MXC_CCM_CCGR3_LDB_DI0_MASK);
471
472 /* set LDB0 clk select to 011/011 */
473 clrsetbits_le32(&mxc_ccm->cs2cdr,
474 MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK,
475 (3 << MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET));
476
477 setbits_le32(&mxc_ccm->cscmr2,
478 MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV);
479
480 setbits_le32(&mxc_ccm->chsccdr,
481 (CHSCCDR_CLK_SEL_LDB_DI0
482 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET));
483
484 reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
485 | IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
486 | IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
487 | IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
488 | IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
489 | IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
490 | IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
491 | IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
492 writel(reg, &iomux->gpr[2]);
493
494 clrsetbits_le32(&iomux->gpr[3],
495 IOMUXC_GPR3_LVDS0_MUX_CTL_MASK |
496 IOMUXC_GPR3_HDMI_MUX_CTL_MASK,
497 IOMUXC_GPR3_MUX_SRC_IPU1_DI0
498 << IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
499 }
500 #endif /* CONFIG_VIDEO_IPUV3 */
501
502 /*
503 * Do not overwrite the console
504 * Use always serial for U-Boot console
505 */
overwrite_console(void)506 int overwrite_console(void)
507 {
508 return 1;
509 }
510
board_eth_init(bd_t * bis)511 int board_eth_init(bd_t *bis)
512 {
513 setup_iomux_enet();
514
515 return cpu_eth_init(bis);
516 }
517
board_early_init_f(void)518 int board_early_init_f(void)
519 {
520 u32 cputype = cpu_type(get_cpu_rev());
521
522 switch (cputype) {
523 case MXC_CPU_MX6SOLO:
524 board_type = BOARD_IS_RIOTBOARD;
525 break;
526 case MXC_CPU_MX6D:
527 board_type = BOARD_IS_MARSBOARD;
528 break;
529 }
530
531 setup_iomux_uart();
532
533 if (board_type == BOARD_IS_RIOTBOARD)
534 imx_iomux_v3_setup_multiple_pads(
535 tft_pads_riot, ARRAY_SIZE(tft_pads_riot));
536 else if (board_type == BOARD_IS_MARSBOARD)
537 imx_iomux_v3_setup_multiple_pads(
538 tft_pads_mars, ARRAY_SIZE(tft_pads_mars));
539 #if defined(CONFIG_VIDEO_IPUV3)
540 /* power ON LCD */
541 gpio_direction_output(IMX_GPIO_NR(1, 29) , 1);
542 /* touch interrupt is an input */
543 gpio_direction_input(IMX_GPIO_NR(6, 14));
544 /* power ON backlight */
545 gpio_direction_output(IMX_GPIO_NR(6, 15) , 1);
546 /* set backlight level to off */
547 if (board_type == BOARD_IS_RIOTBOARD)
548 gpio_direction_output(IMX_GPIO_NR(1, 18) , 0);
549 else if (board_type == BOARD_IS_MARSBOARD)
550 gpio_direction_output(IMX_GPIO_NR(2, 10) , 0);
551 setup_display();
552 #endif
553
554 return 0;
555 }
556
board_init(void)557 int board_init(void)
558 {
559 /* address of boot parameters */
560 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
561 /* i2c1 : PMIC, Audio codec on RiOT, Expansion connector on MarS */
562 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
563 /* i2c2 : HDMI EDID */
564 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
565 /* i2c3 : LVDS, Expansion connector */
566 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info3);
567 #ifdef CONFIG_MXC_SPI
568 setup_spi();
569 #endif
570 return 0;
571 }
572
573 #ifdef CONFIG_CMD_BMODE
574 static const struct boot_mode riotboard_boot_modes[] = {
575 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
576 {"sd3", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
577 {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
578 {NULL, 0},
579 };
580 static const struct boot_mode marsboard_boot_modes[] = {
581 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
582 {"emmc", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
583 {NULL, 0},
584 };
585 #endif
586
board_late_init(void)587 int board_late_init(void)
588 {
589 #ifdef CONFIG_CMD_BMODE
590 if (board_type == BOARD_IS_RIOTBOARD)
591 add_board_boot_modes(riotboard_boot_modes);
592 else if (board_type == BOARD_IS_RIOTBOARD)
593 add_board_boot_modes(marsboard_boot_modes);
594 #endif
595
596 return 0;
597 }
598
checkboard(void)599 int checkboard(void)
600 {
601 puts("Board: ");
602 if (board_type == BOARD_IS_MARSBOARD)
603 puts("MarSBoard\n");
604 else if (board_type == BOARD_IS_RIOTBOARD)
605 puts("RIoTboard\n");
606 else
607 printf("unknown - cputype : %02x\n", cpu_type(get_cpu_rev()));
608
609 return 0;
610 }
611