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[people/ms/u-boot.git] / board / boundary / nitrogen6x / nitrogen6x.c
1 /*
2 * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
3 * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/clock.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/iomux.h>
13 #include <asm/arch/sys_proto.h>
14 #include <malloc.h>
15 #include <asm/arch/mx6-pins.h>
16 #include <linux/errno.h>
17 #include <asm/gpio.h>
18 #include <asm/mach-imx/iomux-v3.h>
19 #include <asm/mach-imx/mxc_i2c.h>
20 #include <asm/mach-imx/sata.h>
21 #include <asm/mach-imx/spi.h>
22 #include <asm/mach-imx/boot_mode.h>
23 #include <asm/mach-imx/video.h>
24 #include <mmc.h>
25 #include <fsl_esdhc.h>
26 #include <micrel.h>
27 #include <miiphy.h>
28 #include <netdev.h>
29 #include <asm/arch/crm_regs.h>
30 #include <asm/arch/mxc_hdmi.h>
31 #include <i2c.h>
32 #include <input.h>
33 #include <netdev.h>
34 #include <usb/ehci-ci.h>
35
36 DECLARE_GLOBAL_DATA_PTR;
37 #define GP_USB_OTG_PWR IMX_GPIO_NR(3, 22)
38
39 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
40 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
41 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
42
43 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
44 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
45 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
46
47 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
48 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
49
50 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
51 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
52
53 #define BUTTON_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
54 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
55
56 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
57 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
58 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
59
60 #define WEAK_PULLUP (PAD_CTL_PUS_100K_UP | \
61 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
62 PAD_CTL_SRE_SLOW)
63
64 #define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \
65 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
66 PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
67
68 #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
69
70 int dram_init(void)
71 {
72 gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);
73
74 return 0;
75 }
76
77 static iomux_v3_cfg_t const uart1_pads[] = {
78 MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
79 MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
80 };
81
82 static iomux_v3_cfg_t const uart2_pads[] = {
83 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
84 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
85 };
86
87 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
88
89 /* I2C1, SGTL5000 */
90 static struct i2c_pads_info i2c_pad_info0 = {
91 .scl = {
92 .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC,
93 .gpio_mode = MX6_PAD_EIM_D21__GPIO3_IO21 | PC,
94 .gp = IMX_GPIO_NR(3, 21)
95 },
96 .sda = {
97 .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC,
98 .gpio_mode = MX6_PAD_EIM_D28__GPIO3_IO28 | PC,
99 .gp = IMX_GPIO_NR(3, 28)
100 }
101 };
102
103 /* I2C2 Camera, MIPI */
104 static struct i2c_pads_info i2c_pad_info1 = {
105 .scl = {
106 .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
107 .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC,
108 .gp = IMX_GPIO_NR(4, 12)
109 },
110 .sda = {
111 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
112 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
113 .gp = IMX_GPIO_NR(4, 13)
114 }
115 };
116
117 /* I2C3, J15 - RGB connector */
118 static struct i2c_pads_info i2c_pad_info2 = {
119 .scl = {
120 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC,
121 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | PC,
122 .gp = IMX_GPIO_NR(1, 5)
123 },
124 .sda = {
125 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC,
126 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | PC,
127 .gp = IMX_GPIO_NR(7, 11)
128 }
129 };
130
131 static iomux_v3_cfg_t const usdhc2_pads[] = {
132 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
133 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
134 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
135 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
136 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
137 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
138 };
139
140 static iomux_v3_cfg_t const usdhc3_pads[] = {
141 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
142 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
143 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
144 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
145 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
146 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
147 MX6_PAD_SD3_DAT5__GPIO7_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
148 };
149
150 static iomux_v3_cfg_t const usdhc4_pads[] = {
151 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
152 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
153 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
154 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
155 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
156 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
157 MX6_PAD_NANDF_D6__GPIO2_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
158 };
159
160 static iomux_v3_cfg_t const enet_pads1[] = {
161 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
162 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
163 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
164 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
165 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
166 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
167 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
168 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
169 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
170 /* pin 35 - 1 (PHY_AD2) on reset */
171 MX6_PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL),
172 /* pin 32 - 1 - (MODE0) all */
173 MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL),
174 /* pin 31 - 1 - (MODE1) all */
175 MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL),
176 /* pin 28 - 1 - (MODE2) all */
177 MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
178 /* pin 27 - 1 - (MODE3) all */
179 MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
180 /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
181 MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(NO_PAD_CTRL),
182 /* pin 42 PHY nRST */
183 MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL),
184 MX6_PAD_ENET_RXD0__GPIO1_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL),
185 };
186
187 static iomux_v3_cfg_t const enet_pads2[] = {
188 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
189 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
190 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
191 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
192 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
193 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
194 };
195
196 static iomux_v3_cfg_t const misc_pads[] = {
197 MX6_PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(WEAK_PULLUP),
198 MX6_PAD_KEY_COL4__USB_OTG_OC | MUX_PAD_CTRL(WEAK_PULLUP),
199 MX6_PAD_EIM_D30__USB_H1_OC | MUX_PAD_CTRL(WEAK_PULLUP),
200 /* OTG Power enable */
201 MX6_PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(OUTPUT_40OHM),
202 };
203
204 /* wl1271 pads on nitrogen6x */
205 static iomux_v3_cfg_t const wl12xx_pads[] = {
206 (MX6_PAD_NANDF_CS1__GPIO6_IO14 & ~MUX_PAD_CTRL_MASK)
207 | MUX_PAD_CTRL(WEAK_PULLDOWN),
208 (MX6_PAD_NANDF_CS2__GPIO6_IO15 & ~MUX_PAD_CTRL_MASK)
209 | MUX_PAD_CTRL(OUTPUT_40OHM),
210 (MX6_PAD_NANDF_CS3__GPIO6_IO16 & ~MUX_PAD_CTRL_MASK)
211 | MUX_PAD_CTRL(OUTPUT_40OHM),
212 };
213 #define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14)
214 #define WL12XX_WL_ENABLE_GP IMX_GPIO_NR(6, 15)
215 #define WL12XX_BT_ENABLE_GP IMX_GPIO_NR(6, 16)
216
217 /* Button assignments for J14 */
218 static iomux_v3_cfg_t const button_pads[] = {
219 /* Menu */
220 MX6_PAD_NANDF_D1__GPIO2_IO01 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
221 /* Back */
222 MX6_PAD_NANDF_D2__GPIO2_IO02 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
223 /* Labelled Search (mapped to Power under Android) */
224 MX6_PAD_NANDF_D3__GPIO2_IO03 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
225 /* Home */
226 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
227 /* Volume Down */
228 MX6_PAD_GPIO_19__GPIO4_IO05 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
229 /* Volume Up */
230 MX6_PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
231 };
232
233 static void setup_iomux_enet(void)
234 {
235 gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* SABRE Lite PHY rst */
236 gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* Nitrogen6X PHY rst */
237 gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
238 gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
239 gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
240 gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
241 gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
242 imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
243 gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
244
245 /* Need delay 10ms according to KSZ9021 spec */
246 udelay(1000 * 10);
247 gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* SABRE Lite PHY reset */
248 gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */
249
250 imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
251 udelay(100); /* Wait 100 us before using mii interface */
252 }
253
254 static iomux_v3_cfg_t const usb_pads[] = {
255 MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),
256 };
257
258 static void setup_iomux_uart(void)
259 {
260 imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
261 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
262 }
263
264 #ifdef CONFIG_USB_EHCI_MX6
265 int board_ehci_hcd_init(int port)
266 {
267 imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
268
269 /* Reset USB hub */
270 gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
271 mdelay(2);
272 gpio_set_value(IMX_GPIO_NR(7, 12), 1);
273
274 return 0;
275 }
276
277 int board_ehci_power(int port, int on)
278 {
279 if (port)
280 return 0;
281 gpio_set_value(GP_USB_OTG_PWR, on);
282 return 0;
283 }
284
285 #endif
286
287 #ifdef CONFIG_FSL_ESDHC
288 static struct fsl_esdhc_cfg usdhc_cfg[2] = {
289 {USDHC3_BASE_ADDR},
290 {USDHC4_BASE_ADDR},
291 };
292
293 int board_mmc_getcd(struct mmc *mmc)
294 {
295 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
296 int gp_cd = (cfg->esdhc_base == USDHC3_BASE_ADDR) ? IMX_GPIO_NR(7, 0) :
297 IMX_GPIO_NR(2, 6);
298
299 gpio_direction_input(gp_cd);
300 return !gpio_get_value(gp_cd);
301 }
302
303 int board_mmc_init(bd_t *bis)
304 {
305 int ret;
306 u32 index = 0;
307
308 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
309 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
310
311 usdhc_cfg[0].max_bus_width = 4;
312 usdhc_cfg[1].max_bus_width = 4;
313
314 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
315 switch (index) {
316 case 0:
317 imx_iomux_v3_setup_multiple_pads(
318 usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
319 break;
320 case 1:
321 imx_iomux_v3_setup_multiple_pads(
322 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
323 break;
324 default:
325 printf("Warning: you configured more USDHC controllers"
326 "(%d) then supported by the board (%d)\n",
327 index + 1, CONFIG_SYS_FSL_USDHC_NUM);
328 return -EINVAL;
329 }
330
331 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
332 if (ret)
333 return ret;
334 }
335
336 return 0;
337 }
338 #endif
339
340 #ifdef CONFIG_MXC_SPI
341 int board_spi_cs_gpio(unsigned bus, unsigned cs)
342 {
343 return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -1;
344 }
345
346 static iomux_v3_cfg_t const ecspi1_pads[] = {
347 /* SS1 */
348 MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
349 MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
350 MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
351 MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
352 };
353
354 static void setup_spi(void)
355 {
356 imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
357 ARRAY_SIZE(ecspi1_pads));
358 }
359 #endif
360
361 int board_phy_config(struct phy_device *phydev)
362 {
363 /* min rx data delay */
364 ksz9021_phy_extended_write(phydev,
365 MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
366 /* min tx data delay */
367 ksz9021_phy_extended_write(phydev,
368 MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
369 /* max rx/tx clock delay, min rx/tx control */
370 ksz9021_phy_extended_write(phydev,
371 MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
372 if (phydev->drv->config)
373 phydev->drv->config(phydev);
374
375 return 0;
376 }
377
378 int board_eth_init(bd_t *bis)
379 {
380 uint32_t base = IMX_FEC_BASE;
381 struct mii_dev *bus = NULL;
382 struct phy_device *phydev = NULL;
383 int ret;
384
385 setup_iomux_enet();
386
387 #ifdef CONFIG_FEC_MXC
388 bus = fec_get_miibus(base, -1);
389 if (!bus)
390 return -EINVAL;
391 /* scan phy 4,5,6,7 */
392 phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
393 if (!phydev) {
394 ret = -EINVAL;
395 goto free_bus;
396 }
397 printf("using phy at %d\n", phydev->addr);
398 ret = fec_probe(bis, -1, base, bus, phydev);
399 if (ret)
400 goto free_phydev;
401 #endif
402
403 #ifdef CONFIG_CI_UDC
404 /* For otg ethernet*/
405 usb_eth_initialize(bis);
406 #endif
407 return 0;
408
409 free_phydev:
410 free(phydev);
411 free_bus:
412 free(bus);
413 return ret;
414 }
415
416 static void setup_buttons(void)
417 {
418 imx_iomux_v3_setup_multiple_pads(button_pads,
419 ARRAY_SIZE(button_pads));
420 }
421
422 #if defined(CONFIG_VIDEO_IPUV3)
423
424 static iomux_v3_cfg_t const backlight_pads[] = {
425 /* Backlight on RGB connector: J15 */
426 MX6_PAD_SD1_DAT3__GPIO1_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL),
427 #define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
428
429 /* Backlight on LVDS connector: J6 */
430 MX6_PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
431 #define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
432 };
433
434 static iomux_v3_cfg_t const rgb_pads[] = {
435 MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
436 MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
437 MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02,
438 MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03,
439 MX6_PAD_DI0_PIN4__GPIO4_IO20,
440 MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
441 MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
442 MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
443 MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
444 MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
445 MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
446 MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
447 MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
448 MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
449 MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
450 MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
451 MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
452 MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
453 MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
454 MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
455 MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
456 MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
457 MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
458 MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18,
459 MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19,
460 MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20,
461 MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21,
462 MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22,
463 MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
464 };
465
466 static void do_enable_hdmi(struct display_info_t const *dev)
467 {
468 imx_enable_hdmi_phy();
469 }
470
471 static int detect_i2c(struct display_info_t const *dev)
472 {
473 return ((0 == i2c_set_bus_num(dev->bus))
474 &&
475 (0 == i2c_probe(dev->addr)));
476 }
477
478 static void enable_lvds(struct display_info_t const *dev)
479 {
480 struct iomuxc *iomux = (struct iomuxc *)
481 IOMUXC_BASE_ADDR;
482 u32 reg = readl(&iomux->gpr[2]);
483 reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
484 writel(reg, &iomux->gpr[2]);
485 gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
486 }
487
488 static void enable_lvds_jeida(struct display_info_t const *dev)
489 {
490 struct iomuxc *iomux = (struct iomuxc *)
491 IOMUXC_BASE_ADDR;
492 u32 reg = readl(&iomux->gpr[2]);
493 reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT
494 |IOMUXC_GPR2_BIT_MAPPING_CH0_JEIDA;
495 writel(reg, &iomux->gpr[2]);
496 gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
497 }
498
499 static void enable_rgb(struct display_info_t const *dev)
500 {
501 imx_iomux_v3_setup_multiple_pads(
502 rgb_pads,
503 ARRAY_SIZE(rgb_pads));
504 gpio_direction_output(RGB_BACKLIGHT_GP, 1);
505 }
506
507 struct display_info_t const displays[] = {{
508 .bus = 1,
509 .addr = 0x50,
510 .pixfmt = IPU_PIX_FMT_RGB24,
511 .detect = detect_i2c,
512 .enable = do_enable_hdmi,
513 .mode = {
514 .name = "HDMI",
515 .refresh = 60,
516 .xres = 1024,
517 .yres = 768,
518 .pixclock = 15385,
519 .left_margin = 220,
520 .right_margin = 40,
521 .upper_margin = 21,
522 .lower_margin = 7,
523 .hsync_len = 60,
524 .vsync_len = 10,
525 .sync = FB_SYNC_EXT,
526 .vmode = FB_VMODE_NONINTERLACED
527 } }, {
528 .bus = 0,
529 .addr = 0,
530 .pixfmt = IPU_PIX_FMT_RGB24,
531 .detect = NULL,
532 .enable = enable_lvds_jeida,
533 .mode = {
534 .name = "LDB-WXGA",
535 .refresh = 60,
536 .xres = 1280,
537 .yres = 800,
538 .pixclock = 14065,
539 .left_margin = 40,
540 .right_margin = 40,
541 .upper_margin = 3,
542 .lower_margin = 80,
543 .hsync_len = 10,
544 .vsync_len = 10,
545 .sync = FB_SYNC_EXT,
546 .vmode = FB_VMODE_NONINTERLACED
547 } }, {
548 .bus = 0,
549 .addr = 0,
550 .pixfmt = IPU_PIX_FMT_RGB24,
551 .detect = NULL,
552 .enable = enable_lvds,
553 .mode = {
554 .name = "LDB-WXGA-S",
555 .refresh = 60,
556 .xres = 1280,
557 .yres = 800,
558 .pixclock = 14065,
559 .left_margin = 40,
560 .right_margin = 40,
561 .upper_margin = 3,
562 .lower_margin = 80,
563 .hsync_len = 10,
564 .vsync_len = 10,
565 .sync = FB_SYNC_EXT,
566 .vmode = FB_VMODE_NONINTERLACED
567 } }, {
568 .bus = 2,
569 .addr = 0x4,
570 .pixfmt = IPU_PIX_FMT_LVDS666,
571 .detect = detect_i2c,
572 .enable = enable_lvds,
573 .mode = {
574 .name = "Hannstar-XGA",
575 .refresh = 60,
576 .xres = 1024,
577 .yres = 768,
578 .pixclock = 15385,
579 .left_margin = 220,
580 .right_margin = 40,
581 .upper_margin = 21,
582 .lower_margin = 7,
583 .hsync_len = 60,
584 .vsync_len = 10,
585 .sync = FB_SYNC_EXT,
586 .vmode = FB_VMODE_NONINTERLACED
587 } }, {
588 .bus = 0,
589 .addr = 0,
590 .pixfmt = IPU_PIX_FMT_LVDS666,
591 .detect = NULL,
592 .enable = enable_lvds,
593 .mode = {
594 .name = "LG-9.7",
595 .refresh = 60,
596 .xres = 1024,
597 .yres = 768,
598 .pixclock = 15385, /* ~65MHz */
599 .left_margin = 480,
600 .right_margin = 260,
601 .upper_margin = 16,
602 .lower_margin = 6,
603 .hsync_len = 250,
604 .vsync_len = 10,
605 .sync = FB_SYNC_EXT,
606 .vmode = FB_VMODE_NONINTERLACED
607 } }, {
608 .bus = 2,
609 .addr = 0x38,
610 .pixfmt = IPU_PIX_FMT_LVDS666,
611 .detect = detect_i2c,
612 .enable = enable_lvds,
613 .mode = {
614 .name = "wsvga-lvds",
615 .refresh = 60,
616 .xres = 1024,
617 .yres = 600,
618 .pixclock = 15385,
619 .left_margin = 220,
620 .right_margin = 40,
621 .upper_margin = 21,
622 .lower_margin = 7,
623 .hsync_len = 60,
624 .vsync_len = 10,
625 .sync = FB_SYNC_EXT,
626 .vmode = FB_VMODE_NONINTERLACED
627 } }, {
628 .bus = 2,
629 .addr = 0x10,
630 .pixfmt = IPU_PIX_FMT_RGB666,
631 .detect = detect_i2c,
632 .enable = enable_rgb,
633 .mode = {
634 .name = "fusion7",
635 .refresh = 60,
636 .xres = 800,
637 .yres = 480,
638 .pixclock = 33898,
639 .left_margin = 96,
640 .right_margin = 24,
641 .upper_margin = 3,
642 .lower_margin = 10,
643 .hsync_len = 72,
644 .vsync_len = 7,
645 .sync = 0x40000002,
646 .vmode = FB_VMODE_NONINTERLACED
647 } }, {
648 .bus = 0,
649 .addr = 0,
650 .pixfmt = IPU_PIX_FMT_RGB666,
651 .detect = NULL,
652 .enable = enable_rgb,
653 .mode = {
654 .name = "svga",
655 .refresh = 60,
656 .xres = 800,
657 .yres = 600,
658 .pixclock = 15385,
659 .left_margin = 220,
660 .right_margin = 40,
661 .upper_margin = 21,
662 .lower_margin = 7,
663 .hsync_len = 60,
664 .vsync_len = 10,
665 .sync = 0,
666 .vmode = FB_VMODE_NONINTERLACED
667 } }, {
668 .bus = 2,
669 .addr = 0x41,
670 .pixfmt = IPU_PIX_FMT_LVDS666,
671 .detect = detect_i2c,
672 .enable = enable_lvds,
673 .mode = {
674 .name = "amp1024x600",
675 .refresh = 60,
676 .xres = 1024,
677 .yres = 600,
678 .pixclock = 15385,
679 .left_margin = 220,
680 .right_margin = 40,
681 .upper_margin = 21,
682 .lower_margin = 7,
683 .hsync_len = 60,
684 .vsync_len = 10,
685 .sync = FB_SYNC_EXT,
686 .vmode = FB_VMODE_NONINTERLACED
687 } }, {
688 .bus = 0,
689 .addr = 0,
690 .pixfmt = IPU_PIX_FMT_LVDS666,
691 .detect = 0,
692 .enable = enable_lvds,
693 .mode = {
694 .name = "wvga-lvds",
695 .refresh = 57,
696 .xres = 800,
697 .yres = 480,
698 .pixclock = 15385,
699 .left_margin = 220,
700 .right_margin = 40,
701 .upper_margin = 21,
702 .lower_margin = 7,
703 .hsync_len = 60,
704 .vsync_len = 10,
705 .sync = FB_SYNC_EXT,
706 .vmode = FB_VMODE_NONINTERLACED
707 } }, {
708 .bus = 2,
709 .addr = 0x48,
710 .pixfmt = IPU_PIX_FMT_RGB666,
711 .detect = detect_i2c,
712 .enable = enable_rgb,
713 .mode = {
714 .name = "wvga-rgb",
715 .refresh = 57,
716 .xres = 800,
717 .yres = 480,
718 .pixclock = 37037,
719 .left_margin = 40,
720 .right_margin = 60,
721 .upper_margin = 10,
722 .lower_margin = 10,
723 .hsync_len = 20,
724 .vsync_len = 10,
725 .sync = 0,
726 .vmode = FB_VMODE_NONINTERLACED
727 } }, {
728 .bus = 0,
729 .addr = 0,
730 .pixfmt = IPU_PIX_FMT_RGB24,
731 .detect = NULL,
732 .enable = enable_rgb,
733 .mode = {
734 .name = "qvga",
735 .refresh = 60,
736 .xres = 320,
737 .yres = 240,
738 .pixclock = 37037,
739 .left_margin = 38,
740 .right_margin = 37,
741 .upper_margin = 16,
742 .lower_margin = 15,
743 .hsync_len = 30,
744 .vsync_len = 3,
745 .sync = 0,
746 .vmode = FB_VMODE_NONINTERLACED
747 } } };
748 size_t display_count = ARRAY_SIZE(displays);
749
750 int board_cfb_skip(void)
751 {
752 return NULL != getenv("novideo");
753 }
754
755 static void setup_display(void)
756 {
757 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
758 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
759 int reg;
760
761 enable_ipu_clock();
762 imx_setup_hdmi();
763 /* Turn on LDB0,IPU,IPU DI0 clocks */
764 reg = __raw_readl(&mxc_ccm->CCGR3);
765 reg |= MXC_CCM_CCGR3_LDB_DI0_MASK;
766 writel(reg, &mxc_ccm->CCGR3);
767
768 /* set LDB0, LDB1 clk select to 011/011 */
769 reg = readl(&mxc_ccm->cs2cdr);
770 reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
771 |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
772 reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
773 |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
774 writel(reg, &mxc_ccm->cs2cdr);
775
776 reg = readl(&mxc_ccm->cscmr2);
777 reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
778 writel(reg, &mxc_ccm->cscmr2);
779
780 reg = readl(&mxc_ccm->chsccdr);
781 reg |= (CHSCCDR_CLK_SEL_LDB_DI0
782 <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
783 writel(reg, &mxc_ccm->chsccdr);
784
785 reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
786 |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
787 |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
788 |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
789 |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
790 |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
791 |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
792 |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
793 |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
794 writel(reg, &iomux->gpr[2]);
795
796 reg = readl(&iomux->gpr[3]);
797 reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK
798 |IOMUXC_GPR3_HDMI_MUX_CTL_MASK))
799 | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
800 <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
801 writel(reg, &iomux->gpr[3]);
802
803 /* backlights off until needed */
804 imx_iomux_v3_setup_multiple_pads(backlight_pads,
805 ARRAY_SIZE(backlight_pads));
806 gpio_direction_input(LVDS_BACKLIGHT_GP);
807 gpio_direction_input(RGB_BACKLIGHT_GP);
808 }
809 #endif
810
811 static iomux_v3_cfg_t const init_pads[] = {
812 /* SGTL5000 sys_mclk */
813 NEW_PAD_CTRL(MX6_PAD_GPIO_0__CCM_CLKO1, OUTPUT_40OHM),
814
815 /* J5 - Camera MCLK */
816 NEW_PAD_CTRL(MX6_PAD_GPIO_3__CCM_CLKO2, OUTPUT_40OHM),
817
818 /* wl1271 pads on nitrogen6x */
819 /* WL12XX_WL_IRQ_GP */
820 NEW_PAD_CTRL(MX6_PAD_NANDF_CS1__GPIO6_IO14, WEAK_PULLDOWN),
821 /* WL12XX_WL_ENABLE_GP */
822 NEW_PAD_CTRL(MX6_PAD_NANDF_CS2__GPIO6_IO15, OUTPUT_40OHM),
823 /* WL12XX_BT_ENABLE_GP */
824 NEW_PAD_CTRL(MX6_PAD_NANDF_CS3__GPIO6_IO16, OUTPUT_40OHM),
825 /* USB otg power */
826 NEW_PAD_CTRL(MX6_PAD_EIM_D22__GPIO3_IO22, OUTPUT_40OHM),
827 NEW_PAD_CTRL(MX6_PAD_NANDF_D5__GPIO2_IO05, OUTPUT_40OHM),
828 NEW_PAD_CTRL(MX6_PAD_NANDF_WP_B__GPIO6_IO09, OUTPUT_40OHM),
829 NEW_PAD_CTRL(MX6_PAD_GPIO_8__GPIO1_IO08, OUTPUT_40OHM),
830 NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06, OUTPUT_40OHM),
831 };
832
833 #define WL12XX_WL_IRQ_GP IMX_GPIO_NR(6, 14)
834
835 static unsigned gpios_out_low[] = {
836 /* Disable wl1271 */
837 IMX_GPIO_NR(6, 15), /* disable wireless */
838 IMX_GPIO_NR(6, 16), /* disable bluetooth */
839 IMX_GPIO_NR(3, 22), /* disable USB otg power */
840 IMX_GPIO_NR(2, 5), /* ov5640 mipi camera reset */
841 IMX_GPIO_NR(1, 8), /* ov5642 reset */
842 };
843
844 static unsigned gpios_out_high[] = {
845 IMX_GPIO_NR(1, 6), /* ov5642 powerdown */
846 IMX_GPIO_NR(6, 9), /* ov5640 mipi camera power down */
847 };
848
849 static void set_gpios(unsigned *p, int cnt, int val)
850 {
851 int i;
852
853 for (i = 0; i < cnt; i++)
854 gpio_direction_output(*p++, val);
855 }
856
857 int board_early_init_f(void)
858 {
859 setup_iomux_uart();
860
861 set_gpios(gpios_out_high, ARRAY_SIZE(gpios_out_high), 1);
862 set_gpios(gpios_out_low, ARRAY_SIZE(gpios_out_low), 0);
863 gpio_direction_input(WL12XX_WL_IRQ_GP);
864
865 imx_iomux_v3_setup_multiple_pads(wl12xx_pads, ARRAY_SIZE(wl12xx_pads));
866 imx_iomux_v3_setup_multiple_pads(init_pads, ARRAY_SIZE(init_pads));
867 setup_buttons();
868
869 #if defined(CONFIG_VIDEO_IPUV3)
870 setup_display();
871 #endif
872 return 0;
873 }
874
875 /*
876 * Do not overwrite the console
877 * Use always serial for U-Boot console
878 */
879 int overwrite_console(void)
880 {
881 return 1;
882 }
883
884 int board_init(void)
885 {
886 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
887
888 clrsetbits_le32(&iomuxc_regs->gpr[1],
889 IOMUXC_GPR1_OTG_ID_MASK,
890 IOMUXC_GPR1_OTG_ID_GPIO1);
891
892 imx_iomux_v3_setup_multiple_pads(misc_pads, ARRAY_SIZE(misc_pads));
893
894 /* address of boot parameters */
895 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
896
897 #ifdef CONFIG_MXC_SPI
898 setup_spi();
899 #endif
900 imx_iomux_v3_setup_multiple_pads(
901 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
902 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
903 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
904 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
905
906 #ifdef CONFIG_SATA
907 setup_sata();
908 #endif
909
910 return 0;
911 }
912
913 int checkboard(void)
914 {
915 if (gpio_get_value(WL12XX_WL_IRQ_GP))
916 puts("Board: Nitrogen6X\n");
917 else
918 puts("Board: SABRE Lite\n");
919
920 return 0;
921 }
922
923 struct button_key {
924 char const *name;
925 unsigned gpnum;
926 char ident;
927 };
928
929 static struct button_key const buttons[] = {
930 {"back", IMX_GPIO_NR(2, 2), 'B'},
931 {"home", IMX_GPIO_NR(2, 4), 'H'},
932 {"menu", IMX_GPIO_NR(2, 1), 'M'},
933 {"search", IMX_GPIO_NR(2, 3), 'S'},
934 {"volup", IMX_GPIO_NR(7, 13), 'V'},
935 {"voldown", IMX_GPIO_NR(4, 5), 'v'},
936 };
937
938 /*
939 * generate a null-terminated string containing the buttons pressed
940 * returns number of keys pressed
941 */
942 static int read_keys(char *buf)
943 {
944 int i, numpressed = 0;
945 for (i = 0; i < ARRAY_SIZE(buttons); i++) {
946 if (!gpio_get_value(buttons[i].gpnum))
947 buf[numpressed++] = buttons[i].ident;
948 }
949 buf[numpressed] = '\0';
950 return numpressed;
951 }
952
953 static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
954 {
955 char envvalue[ARRAY_SIZE(buttons)+1];
956 int numpressed = read_keys(envvalue);
957 env_set("keybd", envvalue);
958 return numpressed == 0;
959 }
960
961 U_BOOT_CMD(
962 kbd, 1, 1, do_kbd,
963 "Tests for keypresses, sets 'keybd' environment variable",
964 "Returns 0 (true) to shell if key is pressed."
965 );
966
967 #ifdef CONFIG_PREBOOT
968 static char const kbd_magic_prefix[] = "key_magic";
969 static char const kbd_command_prefix[] = "key_cmd";
970
971 static void preboot_keys(void)
972 {
973 int numpressed;
974 char keypress[ARRAY_SIZE(buttons)+1];
975 numpressed = read_keys(keypress);
976 if (numpressed) {
977 char *kbd_magic_keys = getenv("magic_keys");
978 char *suffix;
979 /*
980 * loop over all magic keys
981 */
982 for (suffix = kbd_magic_keys; *suffix; ++suffix) {
983 char *keys;
984 char magic[sizeof(kbd_magic_prefix) + 1];
985 sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
986 keys = getenv(magic);
987 if (keys) {
988 if (!strcmp(keys, keypress))
989 break;
990 }
991 }
992 if (*suffix) {
993 char cmd_name[sizeof(kbd_command_prefix) + 1];
994 char *cmd;
995 sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
996 cmd = getenv(cmd_name);
997 if (cmd) {
998 env_set("preboot", cmd);
999 return;
1000 }
1001 }
1002 }
1003 }
1004 #endif
1005
1006 #ifdef CONFIG_CMD_BMODE
1007 static const struct boot_mode board_boot_modes[] = {
1008 /* 4 bit bus width */
1009 {"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
1010 {"mmc1", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
1011 {NULL, 0},
1012 };
1013 #endif
1014
1015 int misc_init_r(void)
1016 {
1017 #ifdef CONFIG_PREBOOT
1018 preboot_keys();
1019 #endif
1020
1021 #ifdef CONFIG_CMD_BMODE
1022 add_board_boot_modes(board_boot_modes);
1023 #endif
1024 setenv_hex("reset_cause", get_imx_reset_cause());
1025 return 0;
1026 }
"Das U-Boot" Source Tree