1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
4 * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
12 #include <asm/global_data.h>
14 #include <asm/arch/clock.h>
15 #include <asm/arch/imx-regs.h>
16 #include <asm/arch/iomux.h>
17 #include <asm/arch/sys_proto.h>
19 #include <asm/arch/mx6-pins.h>
20 #include <linux/delay.h>
21 #include <linux/errno.h>
23 #include <asm/mach-imx/iomux-v3.h>
24 #include <asm/mach-imx/mxc_i2c.h>
25 #include <asm/mach-imx/sata.h>
26 #include <asm/mach-imx/spi.h>
27 #include <asm/mach-imx/boot_mode.h>
28 #include <asm/mach-imx/video.h>
29 #include <fsl_esdhc_imx.h>
33 #include <asm/arch/crm_regs.h>
34 #include <asm/arch/mxc_hdmi.h>
38 #include <usb/ehci-ci.h>
40 DECLARE_GLOBAL_DATA_PTR;
41 #define GP_USB_OTG_PWR IMX_GPIO_NR(3, 22)
43 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
44 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
45 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
47 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
48 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
49 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
51 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
52 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
54 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
55 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
57 #define BUTTON_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
58 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
60 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
61 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
62 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
64 #define RGB_PAD_CTRL PAD_CTL_DSE_120ohm
66 #define WEAK_PULLUP (PAD_CTL_PUS_100K_UP | \
67 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
70 #define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \
71 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
72 PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
74 #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
76 /* Prevent compiler error if gpio number 08 or 09 is used */
77 #define not_octal(gp) ((((0x##gp >> 4) & 0xf) * 10) + ((0x##gp & 0xf)))
79 #define _I2C_PADS_INFO_CPU(cpu, i2cnum, scl_pad, scl_bank, scl_gp, \
80 sda_pad, sda_bank, sda_gp, pad_ctrl, join_io) { \
82 .i2c_mode = NEW_PAD_CTRL(cpu##_PAD_##scl_pad##__##i2cnum##_SCL,\
84 .gpio_mode = NEW_PAD_CTRL( \
85 cpu##_PAD_##scl_pad##__GPIO##scl_bank##join_io##scl_gp,\
87 .gp = IMX_GPIO_NR(scl_bank, not_octal(scl_gp)) \
90 .i2c_mode = NEW_PAD_CTRL(cpu##_PAD_##sda_pad##__##i2cnum##_SDA,\
92 .gpio_mode = NEW_PAD_CTRL( \
93 cpu##_PAD_##sda_pad##__GPIO##sda_bank##join_io##sda_gp,\
95 .gp = IMX_GPIO_NR(sda_bank, not_octal(sda_gp)) \
99 #define I2C_PADS_INFO_CPU(cpu, i2cnum, scl_pad, scl_bank, scl_gp, \
100 sda_pad, sda_bank, sda_gp, pad_ctrl) \
101 _I2C_PADS_INFO_CPU(cpu, i2cnum, scl_pad, scl_bank, scl_gp, \
102 sda_pad, sda_bank, sda_gp, pad_ctrl, _IO)
104 #if defined(CONFIG_MX6QDL)
105 #define I2C_PADS_INFO_ENTRY(i2cnum, scl_pad, scl_bank, scl_gp, \
106 sda_pad, sda_bank, sda_gp, pad_ctrl) \
107 I2C_PADS_INFO_CPU(MX6Q, i2cnum, scl_pad, scl_bank, scl_gp, \
108 sda_pad, sda_bank, sda_gp, pad_ctrl), \
109 I2C_PADS_INFO_CPU(MX6DL, i2cnum, scl_pad, scl_bank, scl_gp, \
110 sda_pad, sda_bank, sda_gp, pad_ctrl)
111 #define I2C_PADS_INFO_ENTRY_SPACING 2
113 #define IOMUX_PAD_CTRL(name, pad_ctrl) \
114 NEW_PAD_CTRL(MX6Q_PAD_##name, pad_ctrl), \
115 NEW_PAD_CTRL(MX6DL_PAD_##name, pad_ctrl)
117 #define I2C_PADS_INFO_ENTRY(i2cnum, scl_pad, scl_bank, scl_gp, \
118 sda_pad, sda_bank, sda_gp, pad_ctrl) \
119 I2C_PADS_INFO_CPU(MX6, i2cnum, scl_pad, scl_bank, scl_gp, \
120 sda_pad, sda_bank, sda_gp, pad_ctrl)
121 #define I2C_PADS_INFO_ENTRY_SPACING 1
123 #define IOMUX_PAD_CTRL(name, pad_ctrl) NEW_PAD_CTRL(MX6_PAD_##name, pad_ctrl)
128 gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);
133 static iomux_v3_cfg_t const uart1_pads[] = {
134 IOMUX_PAD_CTRL(SD3_DAT6__UART1_RX_DATA, UART_PAD_CTRL),
135 IOMUX_PAD_CTRL(SD3_DAT7__UART1_TX_DATA, UART_PAD_CTRL),
138 static iomux_v3_cfg_t const uart2_pads[] = {
139 IOMUX_PAD_CTRL(EIM_D26__UART2_TX_DATA, UART_PAD_CTRL),
140 IOMUX_PAD_CTRL(EIM_D27__UART2_RX_DATA, UART_PAD_CTRL),
143 static struct i2c_pads_info i2c_pads[] = {
145 I2C_PADS_INFO_ENTRY(I2C1, EIM_D21, 3, 21, EIM_D28, 3, 28, I2C_PAD_CTRL),
146 /* I2C2 Camera, MIPI */
147 I2C_PADS_INFO_ENTRY(I2C2, KEY_COL3, 4, 12, KEY_ROW3, 4, 13,
149 /* I2C3, J15 - RGB connector */
150 I2C_PADS_INFO_ENTRY(I2C3, GPIO_5, 1, 05, GPIO_16, 7, 11, I2C_PAD_CTRL),
153 #define I2C_BUS_CNT 3
155 static iomux_v3_cfg_t const usdhc2_pads[] = {
156 IOMUX_PAD_CTRL(SD2_CLK__SD2_CLK, USDHC_PAD_CTRL),
157 IOMUX_PAD_CTRL(SD2_CMD__SD2_CMD, USDHC_PAD_CTRL),
158 IOMUX_PAD_CTRL(SD2_DAT0__SD2_DATA0, USDHC_PAD_CTRL),
159 IOMUX_PAD_CTRL(SD2_DAT1__SD2_DATA1, USDHC_PAD_CTRL),
160 IOMUX_PAD_CTRL(SD2_DAT2__SD2_DATA2, USDHC_PAD_CTRL),
161 IOMUX_PAD_CTRL(SD2_DAT3__SD2_DATA3, USDHC_PAD_CTRL),
164 static iomux_v3_cfg_t const enet_pads1[] = {
165 IOMUX_PAD_CTRL(ENET_MDIO__ENET_MDIO, ENET_PAD_CTRL),
166 IOMUX_PAD_CTRL(ENET_MDC__ENET_MDC, ENET_PAD_CTRL),
167 IOMUX_PAD_CTRL(RGMII_TXC__RGMII_TXC, ENET_PAD_CTRL),
168 IOMUX_PAD_CTRL(RGMII_TD0__RGMII_TD0, ENET_PAD_CTRL),
169 IOMUX_PAD_CTRL(RGMII_TD1__RGMII_TD1, ENET_PAD_CTRL),
170 IOMUX_PAD_CTRL(RGMII_TD2__RGMII_TD2, ENET_PAD_CTRL),
171 IOMUX_PAD_CTRL(RGMII_TD3__RGMII_TD3, ENET_PAD_CTRL),
172 IOMUX_PAD_CTRL(RGMII_TX_CTL__RGMII_TX_CTL, ENET_PAD_CTRL),
173 IOMUX_PAD_CTRL(ENET_REF_CLK__ENET_TX_CLK, ENET_PAD_CTRL),
174 /* pin 35 - 1 (PHY_AD2) on reset */
175 IOMUX_PAD_CTRL(RGMII_RXC__GPIO6_IO30, NO_PAD_CTRL),
176 /* pin 32 - 1 - (MODE0) all */
177 IOMUX_PAD_CTRL(RGMII_RD0__GPIO6_IO25, NO_PAD_CTRL),
178 /* pin 31 - 1 - (MODE1) all */
179 IOMUX_PAD_CTRL(RGMII_RD1__GPIO6_IO27, NO_PAD_CTRL),
180 /* pin 28 - 1 - (MODE2) all */
181 IOMUX_PAD_CTRL(RGMII_RD2__GPIO6_IO28, NO_PAD_CTRL),
182 /* pin 27 - 1 - (MODE3) all */
183 IOMUX_PAD_CTRL(RGMII_RD3__GPIO6_IO29, NO_PAD_CTRL),
184 /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
185 IOMUX_PAD_CTRL(RGMII_RX_CTL__GPIO6_IO24, NO_PAD_CTRL),
186 /* pin 42 PHY nRST */
187 IOMUX_PAD_CTRL(EIM_D23__GPIO3_IO23, NO_PAD_CTRL),
188 IOMUX_PAD_CTRL(ENET_RXD0__GPIO1_IO27, NO_PAD_CTRL),
191 static iomux_v3_cfg_t const enet_pads2[] = {
192 IOMUX_PAD_CTRL(RGMII_RXC__RGMII_RXC, ENET_PAD_CTRL),
193 IOMUX_PAD_CTRL(RGMII_RD0__RGMII_RD0, ENET_PAD_CTRL),
194 IOMUX_PAD_CTRL(RGMII_RD1__RGMII_RD1, ENET_PAD_CTRL),
195 IOMUX_PAD_CTRL(RGMII_RD2__RGMII_RD2, ENET_PAD_CTRL),
196 IOMUX_PAD_CTRL(RGMII_RD3__RGMII_RD3, ENET_PAD_CTRL),
197 IOMUX_PAD_CTRL(RGMII_RX_CTL__RGMII_RX_CTL, ENET_PAD_CTRL),
200 static iomux_v3_cfg_t const misc_pads[] = {
201 IOMUX_PAD_CTRL(GPIO_1__USB_OTG_ID, WEAK_PULLUP),
202 IOMUX_PAD_CTRL(KEY_COL4__USB_OTG_OC, WEAK_PULLUP),
203 IOMUX_PAD_CTRL(EIM_D30__USB_H1_OC, WEAK_PULLUP),
204 /* OTG Power enable */
205 IOMUX_PAD_CTRL(EIM_D22__GPIO3_IO22, OUTPUT_40OHM),
208 /* wl1271 pads on nitrogen6x */
209 static iomux_v3_cfg_t const wl12xx_pads[] = {
210 IOMUX_PAD_CTRL(NANDF_CS1__GPIO6_IO14, WEAK_PULLDOWN),
211 IOMUX_PAD_CTRL(NANDF_CS2__GPIO6_IO15, OUTPUT_40OHM),
212 IOMUX_PAD_CTRL(NANDF_CS3__GPIO6_IO16, OUTPUT_40OHM),
214 #define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14)
215 #define WL12XX_WL_ENABLE_GP IMX_GPIO_NR(6, 15)
216 #define WL12XX_BT_ENABLE_GP IMX_GPIO_NR(6, 16)
218 /* Button assignments for J14 */
219 static iomux_v3_cfg_t const button_pads[] = {
221 IOMUX_PAD_CTRL(NANDF_D1__GPIO2_IO01, BUTTON_PAD_CTRL),
223 IOMUX_PAD_CTRL(NANDF_D2__GPIO2_IO02, BUTTON_PAD_CTRL),
224 /* Labelled Search (mapped to Power under Android) */
225 IOMUX_PAD_CTRL(NANDF_D3__GPIO2_IO03, BUTTON_PAD_CTRL),
227 IOMUX_PAD_CTRL(NANDF_D4__GPIO2_IO04, BUTTON_PAD_CTRL),
229 IOMUX_PAD_CTRL(GPIO_19__GPIO4_IO05, BUTTON_PAD_CTRL),
231 IOMUX_PAD_CTRL(GPIO_18__GPIO7_IO13, BUTTON_PAD_CTRL),
234 static void setup_iomux_enet(void)
236 gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* SABRE Lite PHY rst */
237 gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* Nitrogen6X PHY rst */
238 gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
239 gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
240 gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
241 gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
242 gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
243 SETUP_IOMUX_PADS(enet_pads1);
244 gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
246 /* Need delay 10ms according to KSZ9021 spec */
248 gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* SABRE Lite PHY reset */
249 gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */
251 SETUP_IOMUX_PADS(enet_pads2);
252 udelay(100); /* Wait 100 us before using mii interface */
255 static iomux_v3_cfg_t const usb_pads[] = {
256 IOMUX_PAD_CTRL(GPIO_17__GPIO7_IO12, NO_PAD_CTRL),
259 static void setup_iomux_uart(void)
261 SETUP_IOMUX_PADS(uart1_pads);
262 SETUP_IOMUX_PADS(uart2_pads);
265 #ifdef CONFIG_USB_EHCI_MX6
266 int board_ehci_hcd_init(int port)
268 SETUP_IOMUX_PADS(usb_pads);
271 gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
273 gpio_set_value(IMX_GPIO_NR(7, 12), 1);
278 int board_ehci_power(int port, int on)
282 gpio_set_value(GP_USB_OTG_PWR, on);
288 #ifdef CONFIG_MXC_SPI
289 int board_spi_cs_gpio(unsigned bus, unsigned cs)
291 return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -1;
294 static iomux_v3_cfg_t const ecspi1_pads[] = {
296 IOMUX_PAD_CTRL(EIM_D19__GPIO3_IO19, NO_PAD_CTRL),
297 IOMUX_PAD_CTRL(EIM_D17__ECSPI1_MISO, SPI_PAD_CTRL),
298 IOMUX_PAD_CTRL(EIM_D18__ECSPI1_MOSI, SPI_PAD_CTRL),
299 IOMUX_PAD_CTRL(EIM_D16__ECSPI1_SCLK, SPI_PAD_CTRL),
302 static void setup_spi(void)
304 SETUP_IOMUX_PADS(ecspi1_pads);
308 int board_phy_config(struct phy_device *phydev)
310 /* min rx data delay */
311 ksz9021_phy_extended_write(phydev,
312 MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
313 /* min tx data delay */
314 ksz9021_phy_extended_write(phydev,
315 MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
316 /* max rx/tx clock delay, min rx/tx control */
317 ksz9021_phy_extended_write(phydev,
318 MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
319 if (phydev->drv->config)
320 phydev->drv->config(phydev);
325 int board_eth_init(struct bd_info *bis)
327 uint32_t base = IMX_FEC_BASE;
328 struct mii_dev *bus = NULL;
329 struct phy_device *phydev = NULL;
332 gpio_request(WL12XX_WL_IRQ_GP, "wifi_irq");
333 gpio_request(IMX_GPIO_NR(6, 30), "rgmii_rxc");
334 gpio_request(IMX_GPIO_NR(6, 25), "rgmii_rd0");
335 gpio_request(IMX_GPIO_NR(6, 27), "rgmii_rd1");
336 gpio_request(IMX_GPIO_NR(6, 28), "rgmii_rd2");
337 gpio_request(IMX_GPIO_NR(6, 29), "rgmii_rd3");
338 gpio_request(IMX_GPIO_NR(6, 24), "rgmii_rx_ctl");
339 gpio_request(IMX_GPIO_NR(3, 23), "rgmii_reset_sabrelite");
340 gpio_request(IMX_GPIO_NR(1, 27), "rgmii_reset_nitrogen6x");
343 #ifdef CONFIG_FEC_MXC
344 bus = fec_get_miibus(base, -1);
347 /* scan phy 4,5,6,7 */
348 phydev = phy_find_by_mask(bus, (0xf << 4));
353 printf("using phy at %d\n", phydev->addr);
354 ret = fec_probe(bis, -1, base, bus, phydev);
368 static void setup_buttons(void)
370 SETUP_IOMUX_PADS(button_pads);
373 #if defined(CONFIG_VIDEO_IPUV3)
375 static iomux_v3_cfg_t const backlight_pads[] = {
376 /* Backlight on RGB connector: J15 */
377 IOMUX_PAD_CTRL(SD1_DAT3__GPIO1_IO21, NO_PAD_CTRL),
378 #define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
380 /* Backlight on LVDS connector: J6 */
381 IOMUX_PAD_CTRL(SD1_CMD__GPIO1_IO18, NO_PAD_CTRL),
382 #define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
385 static iomux_v3_cfg_t const rgb_pads[] = {
386 IOMUX_PAD_CTRL(DI0_DISP_CLK__IPU1_DI0_DISP_CLK, RGB_PAD_CTRL),
387 IOMUX_PAD_CTRL(DI0_PIN15__IPU1_DI0_PIN15, RGB_PAD_CTRL),
388 IOMUX_PAD_CTRL(DI0_PIN2__IPU1_DI0_PIN02, RGB_PAD_CTRL),
389 IOMUX_PAD_CTRL(DI0_PIN3__IPU1_DI0_PIN03, RGB_PAD_CTRL),
390 IOMUX_PAD_CTRL(DI0_PIN4__GPIO4_IO20, RGB_PAD_CTRL),
391 IOMUX_PAD_CTRL(DISP0_DAT0__IPU1_DISP0_DATA00, RGB_PAD_CTRL),
392 IOMUX_PAD_CTRL(DISP0_DAT1__IPU1_DISP0_DATA01, RGB_PAD_CTRL),
393 IOMUX_PAD_CTRL(DISP0_DAT2__IPU1_DISP0_DATA02, RGB_PAD_CTRL),
394 IOMUX_PAD_CTRL(DISP0_DAT3__IPU1_DISP0_DATA03, RGB_PAD_CTRL),
395 IOMUX_PAD_CTRL(DISP0_DAT4__IPU1_DISP0_DATA04, RGB_PAD_CTRL),
396 IOMUX_PAD_CTRL(DISP0_DAT5__IPU1_DISP0_DATA05, RGB_PAD_CTRL),
397 IOMUX_PAD_CTRL(DISP0_DAT6__IPU1_DISP0_DATA06, RGB_PAD_CTRL),
398 IOMUX_PAD_CTRL(DISP0_DAT7__IPU1_DISP0_DATA07, RGB_PAD_CTRL),
399 IOMUX_PAD_CTRL(DISP0_DAT8__IPU1_DISP0_DATA08, RGB_PAD_CTRL),
400 IOMUX_PAD_CTRL(DISP0_DAT9__IPU1_DISP0_DATA09, RGB_PAD_CTRL),
401 IOMUX_PAD_CTRL(DISP0_DAT10__IPU1_DISP0_DATA10, RGB_PAD_CTRL),
402 IOMUX_PAD_CTRL(DISP0_DAT11__IPU1_DISP0_DATA11, RGB_PAD_CTRL),
403 IOMUX_PAD_CTRL(DISP0_DAT12__IPU1_DISP0_DATA12, RGB_PAD_CTRL),
404 IOMUX_PAD_CTRL(DISP0_DAT13__IPU1_DISP0_DATA13, RGB_PAD_CTRL),
405 IOMUX_PAD_CTRL(DISP0_DAT14__IPU1_DISP0_DATA14, RGB_PAD_CTRL),
406 IOMUX_PAD_CTRL(DISP0_DAT15__IPU1_DISP0_DATA15, RGB_PAD_CTRL),
407 IOMUX_PAD_CTRL(DISP0_DAT16__IPU1_DISP0_DATA16, RGB_PAD_CTRL),
408 IOMUX_PAD_CTRL(DISP0_DAT17__IPU1_DISP0_DATA17, RGB_PAD_CTRL),
409 IOMUX_PAD_CTRL(DISP0_DAT18__IPU1_DISP0_DATA18, RGB_PAD_CTRL),
410 IOMUX_PAD_CTRL(DISP0_DAT19__IPU1_DISP0_DATA19, RGB_PAD_CTRL),
411 IOMUX_PAD_CTRL(DISP0_DAT20__IPU1_DISP0_DATA20, RGB_PAD_CTRL),
412 IOMUX_PAD_CTRL(DISP0_DAT21__IPU1_DISP0_DATA21, RGB_PAD_CTRL),
413 IOMUX_PAD_CTRL(DISP0_DAT22__IPU1_DISP0_DATA22, RGB_PAD_CTRL),
414 IOMUX_PAD_CTRL(DISP0_DAT23__IPU1_DISP0_DATA23, RGB_PAD_CTRL),
417 static void do_enable_hdmi(struct display_info_t const *dev)
419 imx_enable_hdmi_phy();
422 static int detect_i2c(struct display_info_t const *dev)
424 return ((0 == i2c_set_bus_num(dev->bus))
426 (0 == i2c_probe(dev->addr)));
429 static void enable_lvds(struct display_info_t const *dev)
431 struct iomuxc *iomux = (struct iomuxc *)
433 u32 reg = readl(&iomux->gpr[2]);
434 reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
435 writel(reg, &iomux->gpr[2]);
436 gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
439 static void enable_lvds_jeida(struct display_info_t const *dev)
441 struct iomuxc *iomux = (struct iomuxc *)
443 u32 reg = readl(&iomux->gpr[2]);
444 reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT
445 |IOMUXC_GPR2_BIT_MAPPING_CH0_JEIDA;
446 writel(reg, &iomux->gpr[2]);
447 gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
450 static void enable_rgb(struct display_info_t const *dev)
452 SETUP_IOMUX_PADS(rgb_pads);
453 gpio_direction_output(RGB_BACKLIGHT_GP, 1);
456 struct display_info_t const displays[] = {{
459 .pixfmt = IPU_PIX_FMT_RGB24,
460 .detect = detect_i2c,
461 .enable = do_enable_hdmi,
475 .vmode = FB_VMODE_NONINTERLACED
479 .pixfmt = IPU_PIX_FMT_RGB24,
481 .enable = enable_lvds_jeida,
495 .vmode = FB_VMODE_NONINTERLACED
499 .pixfmt = IPU_PIX_FMT_RGB24,
501 .enable = enable_lvds,
503 .name = "LDB-WXGA-S",
515 .vmode = FB_VMODE_NONINTERLACED
519 .pixfmt = IPU_PIX_FMT_LVDS666,
520 .detect = detect_i2c,
521 .enable = enable_lvds,
523 .name = "Hannstar-XGA",
535 .vmode = FB_VMODE_NONINTERLACED
539 .pixfmt = IPU_PIX_FMT_LVDS666,
541 .enable = enable_lvds,
547 .pixclock = 15385, /* ~65MHz */
555 .vmode = FB_VMODE_NONINTERLACED
559 .pixfmt = IPU_PIX_FMT_LVDS666,
560 .detect = detect_i2c,
561 .enable = enable_lvds,
563 .name = "wsvga-lvds",
575 .vmode = FB_VMODE_NONINTERLACED
579 .pixfmt = IPU_PIX_FMT_RGB666,
580 .detect = detect_i2c,
581 .enable = enable_rgb,
595 .vmode = FB_VMODE_NONINTERLACED
599 .pixfmt = IPU_PIX_FMT_RGB666,
601 .enable = enable_rgb,
615 .vmode = FB_VMODE_NONINTERLACED
619 .pixfmt = IPU_PIX_FMT_LVDS666,
620 .detect = detect_i2c,
621 .enable = enable_lvds,
623 .name = "amp1024x600",
635 .vmode = FB_VMODE_NONINTERLACED
639 .pixfmt = IPU_PIX_FMT_LVDS666,
641 .enable = enable_lvds,
655 .vmode = FB_VMODE_NONINTERLACED
659 .pixfmt = IPU_PIX_FMT_RGB666,
660 .detect = detect_i2c,
661 .enable = enable_rgb,
675 .vmode = FB_VMODE_NONINTERLACED
679 .pixfmt = IPU_PIX_FMT_RGB24,
681 .enable = enable_rgb,
695 .vmode = FB_VMODE_NONINTERLACED
697 size_t display_count = ARRAY_SIZE(displays);
699 int board_cfb_skip(void)
701 return NULL != env_get("novideo");
704 static void setup_display(void)
706 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
707 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
712 /* Turn on LDB0,IPU,IPU DI0 clocks */
713 reg = __raw_readl(&mxc_ccm->CCGR3);
714 reg |= MXC_CCM_CCGR3_LDB_DI0_MASK;
715 writel(reg, &mxc_ccm->CCGR3);
717 /* set LDB0, LDB1 clk select to 011/011 */
718 reg = readl(&mxc_ccm->cs2cdr);
719 reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
720 |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
721 reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
722 |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
723 writel(reg, &mxc_ccm->cs2cdr);
725 reg = readl(&mxc_ccm->cscmr2);
726 reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
727 writel(reg, &mxc_ccm->cscmr2);
729 reg = readl(&mxc_ccm->chsccdr);
730 reg |= (CHSCCDR_CLK_SEL_LDB_DI0
731 <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
732 writel(reg, &mxc_ccm->chsccdr);
734 reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
735 |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
736 |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
737 |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
738 |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
739 |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
740 |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
741 |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
742 |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
743 writel(reg, &iomux->gpr[2]);
745 reg = readl(&iomux->gpr[3]);
746 reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK
747 |IOMUXC_GPR3_HDMI_MUX_CTL_MASK))
748 | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
749 <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
750 writel(reg, &iomux->gpr[3]);
752 /* backlights off until needed */
753 SETUP_IOMUX_PADS(backlight_pads);
754 gpio_direction_input(LVDS_BACKLIGHT_GP);
755 gpio_direction_input(RGB_BACKLIGHT_GP);
759 static iomux_v3_cfg_t const init_pads[] = {
760 /* SGTL5000 sys_mclk */
761 IOMUX_PAD_CTRL(GPIO_0__CCM_CLKO1, OUTPUT_40OHM),
763 /* J5 - Camera MCLK */
764 IOMUX_PAD_CTRL(GPIO_3__CCM_CLKO2, OUTPUT_40OHM),
766 /* wl1271 pads on nitrogen6x */
767 /* WL12XX_WL_IRQ_GP */
768 IOMUX_PAD_CTRL(NANDF_CS1__GPIO6_IO14, WEAK_PULLDOWN),
769 /* WL12XX_WL_ENABLE_GP */
770 IOMUX_PAD_CTRL(NANDF_CS2__GPIO6_IO15, OUTPUT_40OHM),
771 /* WL12XX_BT_ENABLE_GP */
772 IOMUX_PAD_CTRL(NANDF_CS3__GPIO6_IO16, OUTPUT_40OHM),
774 IOMUX_PAD_CTRL(EIM_D22__GPIO3_IO22, OUTPUT_40OHM),
775 IOMUX_PAD_CTRL(NANDF_D5__GPIO2_IO05, OUTPUT_40OHM),
776 IOMUX_PAD_CTRL(NANDF_WP_B__GPIO6_IO09, OUTPUT_40OHM),
777 IOMUX_PAD_CTRL(GPIO_8__GPIO1_IO08, OUTPUT_40OHM),
778 IOMUX_PAD_CTRL(GPIO_6__GPIO1_IO06, OUTPUT_40OHM),
781 #define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14)
783 static unsigned gpios_out_low[] = {
785 IMX_GPIO_NR(6, 15), /* disable wireless */
786 IMX_GPIO_NR(6, 16), /* disable bluetooth */
787 IMX_GPIO_NR(3, 22), /* disable USB otg power */
788 IMX_GPIO_NR(2, 5), /* ov5640 mipi camera reset */
789 IMX_GPIO_NR(1, 8), /* ov5642 reset */
792 static unsigned gpios_out_high[] = {
793 IMX_GPIO_NR(1, 6), /* ov5642 powerdown */
794 IMX_GPIO_NR(6, 9), /* ov5640 mipi camera power down */
797 static void set_gpios(unsigned *p, int cnt, int val)
801 for (i = 0; i < cnt; i++)
802 gpio_direction_output(*p++, val);
805 int board_early_init_f(void)
809 set_gpios(gpios_out_high, ARRAY_SIZE(gpios_out_high), 1);
810 set_gpios(gpios_out_low, ARRAY_SIZE(gpios_out_low), 0);
811 gpio_direction_input(WL12XX_WL_IRQ_GP);
813 SETUP_IOMUX_PADS(wl12xx_pads);
814 SETUP_IOMUX_PADS(init_pads);
817 #if defined(CONFIG_VIDEO_IPUV3)
824 * Do not overwrite the console
825 * Use always serial for U-Boot console
827 int overwrite_console(void)
834 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
835 struct i2c_pads_info *p = i2c_pads;
839 #if defined(CONFIG_MX6QDL)
841 if (!is_mx6dq() && !is_mx6dqp())
844 clrsetbits_le32(&iomuxc_regs->gpr[1],
845 IOMUXC_GPR1_OTG_ID_MASK,
846 IOMUXC_GPR1_OTG_ID_GPIO1);
848 SETUP_IOMUX_PADS(misc_pads);
850 /* address of boot parameters */
851 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
853 #ifdef CONFIG_MXC_SPI
856 SETUP_IOMUX_PADS(usdhc2_pads);
857 for (i = 0; i < I2C_BUS_CNT; i++) {
858 setup_i2c(i, CONFIG_SYS_I2C_SPEED, 0x7f, p);
871 int ret = gpio_get_value(WL12XX_WL_IRQ_GP);
874 /* The gpios have not been probed yet. Read it myself */
875 struct gpio_regs *regs = (struct gpio_regs *)GPIO6_BASE_ADDR;
876 int gpio = WL12XX_WL_IRQ_GP & 0x1f;
878 ret = (readl(®s->gpio_psr) >> gpio) & 0x01;
881 puts("Board: Nitrogen6X\n");
883 puts("Board: SABRE Lite\n");
894 static struct button_key const buttons[] = {
895 {"back", IMX_GPIO_NR(2, 2), 'B'},
896 {"home", IMX_GPIO_NR(2, 4), 'H'},
897 {"menu", IMX_GPIO_NR(2, 1), 'M'},
898 {"search", IMX_GPIO_NR(2, 3), 'S'},
899 {"volup", IMX_GPIO_NR(7, 13), 'V'},
900 {"voldown", IMX_GPIO_NR(4, 5), 'v'},
904 * generate a null-terminated string containing the buttons pressed
905 * returns number of keys pressed
907 static int read_keys(char *buf)
909 int i, numpressed = 0;
910 for (i = 0; i < ARRAY_SIZE(buttons); i++) {
911 if (!gpio_get_value(buttons[i].gpnum))
912 buf[numpressed++] = buttons[i].ident;
914 buf[numpressed] = '\0';
918 static int do_kbd(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
920 char envvalue[ARRAY_SIZE(buttons)+1];
921 int numpressed = read_keys(envvalue);
922 env_set("keybd", envvalue);
923 return numpressed == 0;
928 "Tests for keypresses, sets 'keybd' environment variable",
929 "Returns 0 (true) to shell if key is pressed."
932 #ifdef CONFIG_USE_PREBOOT
933 static char const kbd_magic_prefix[] = "key_magic";
934 static char const kbd_command_prefix[] = "key_cmd";
936 static void preboot_keys(void)
939 char keypress[ARRAY_SIZE(buttons)+1];
940 numpressed = read_keys(keypress);
942 char *kbd_magic_keys = env_get("magic_keys");
945 * loop over all magic keys
947 for (suffix = kbd_magic_keys; *suffix; ++suffix) {
949 char magic[sizeof(kbd_magic_prefix) + 1];
950 sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
951 keys = env_get(magic);
953 if (!strcmp(keys, keypress))
958 char cmd_name[sizeof(kbd_command_prefix) + 1];
960 sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
961 cmd = env_get(cmd_name);
963 env_set("preboot", cmd);
971 #ifdef CONFIG_CMD_BMODE
972 static const struct boot_mode board_boot_modes[] = {
973 /* 4 bit bus width */
974 {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
975 {"mmc1", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
980 int misc_init_r(void)
982 gpio_request(RGB_BACKLIGHT_GP, "lvds backlight");
983 gpio_request(LVDS_BACKLIGHT_GP, "lvds backlight");
984 gpio_request(GP_USB_OTG_PWR, "usbotg power");
985 gpio_request(IMX_GPIO_NR(7, 12), "usbh1 hub reset");
986 gpio_request(IMX_GPIO_NR(2, 2), "back");
987 gpio_request(IMX_GPIO_NR(2, 4), "home");
988 gpio_request(IMX_GPIO_NR(2, 1), "menu");
989 gpio_request(IMX_GPIO_NR(2, 3), "search");
990 gpio_request(IMX_GPIO_NR(7, 13), "volup");
991 gpio_request(IMX_GPIO_NR(4, 5), "voldown");
992 #ifdef CONFIG_USE_PREBOOT
996 #ifdef CONFIG_CMD_BMODE
997 add_board_boot_modes(board_boot_modes);
999 env_set_hex("reset_cause", get_imx_reset_cause());