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[u-boot] / 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 <asm/errno.h>
17 #include <asm/gpio.h>
18 #include <asm/imx-common/iomux-v3.h>
19 #include <asm/imx-common/mxc_i2c.h>
20 #include <asm/imx-common/sata.h>
21 #include <asm/imx-common/boot_mode.h>
22 #include <asm/imx-common/video.h>
23 #include <mmc.h>
24 #include <fsl_esdhc.h>
25 #include <micrel.h>
26 #include <miiphy.h>
27 #include <netdev.h>
28 #include <asm/arch/crm_regs.h>
29 #include <asm/arch/mxc_hdmi.h>
30 #include <i2c.h>
31 #include <input.h>
32 #include <netdev.h>
33 #include <usb/ehci-fsl.h>
34
35 DECLARE_GLOBAL_DATA_PTR;
36 #define GP_USB_OTG_PWR  IMX_GPIO_NR(3, 22)
37
38 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
39         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
40         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
41
42 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
43         PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
44         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
45
46 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
47         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
48
49 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED |         \
50         PAD_CTL_DSE_40ohm     | PAD_CTL_SRE_FAST)
51
52 #define BUTTON_PAD_CTRL (PAD_CTL_PUS_100K_UP |                  \
53         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
54
55 #define I2C_PAD_CTRL    (PAD_CTL_PUS_100K_UP |                  \
56         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
57         PAD_CTL_ODE | PAD_CTL_SRE_FAST)
58
59 #define WEAK_PULLUP     (PAD_CTL_PUS_100K_UP |                  \
60         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
61         PAD_CTL_SRE_SLOW)
62
63 #define WEAK_PULLDOWN   (PAD_CTL_PUS_100K_DOWN |                \
64         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
65         PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
66
67 #define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
68
69 int dram_init(void)
70 {
71         gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);
72
73         return 0;
74 }
75
76 static iomux_v3_cfg_t const uart1_pads[] = {
77         MX6_PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
78         MX6_PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
79 };
80
81 static iomux_v3_cfg_t const uart2_pads[] = {
82         MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
83         MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
84 };
85
86 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
87
88 /* I2C1, SGTL5000 */
89 static struct i2c_pads_info i2c_pad_info0 = {
90         .scl = {
91                 .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC,
92                 .gpio_mode = MX6_PAD_EIM_D21__GPIO3_IO21 | PC,
93                 .gp = IMX_GPIO_NR(3, 21)
94         },
95         .sda = {
96                 .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC,
97                 .gpio_mode = MX6_PAD_EIM_D28__GPIO3_IO28 | PC,
98                 .gp = IMX_GPIO_NR(3, 28)
99         }
100 };
101
102 /* I2C2 Camera, MIPI */
103 static struct i2c_pads_info i2c_pad_info1 = {
104         .scl = {
105                 .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
106                 .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC,
107                 .gp = IMX_GPIO_NR(4, 12)
108         },
109         .sda = {
110                 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
111                 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
112                 .gp = IMX_GPIO_NR(4, 13)
113         }
114 };
115
116 /* I2C3, J15 - RGB connector */
117 static struct i2c_pads_info i2c_pad_info2 = {
118         .scl = {
119                 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC,
120                 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | PC,
121                 .gp = IMX_GPIO_NR(1, 5)
122         },
123         .sda = {
124                 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC,
125                 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | PC,
126                 .gp = IMX_GPIO_NR(7, 11)
127         }
128 };
129
130 static iomux_v3_cfg_t const usdhc2_pads[] = {
131         MX6_PAD_SD2_CLK__SD2_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
132         MX6_PAD_SD2_CMD__SD2_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
133         MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
134         MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
135         MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
136         MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
137 };
138
139 static iomux_v3_cfg_t const usdhc3_pads[] = {
140         MX6_PAD_SD3_CLK__SD3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
141         MX6_PAD_SD3_CMD__SD3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
142         MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
143         MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
144         MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
145         MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
146         MX6_PAD_SD3_DAT5__GPIO7_IO00    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
147 };
148
149 static iomux_v3_cfg_t const usdhc4_pads[] = {
150         MX6_PAD_SD4_CLK__SD4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
151         MX6_PAD_SD4_CMD__SD4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
152         MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
153         MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
154         MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
155         MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
156         MX6_PAD_NANDF_D6__GPIO2_IO06    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
157 };
158
159 static iomux_v3_cfg_t const enet_pads1[] = {
160         MX6_PAD_ENET_MDIO__ENET_MDIO            | MUX_PAD_CTRL(ENET_PAD_CTRL),
161         MX6_PAD_ENET_MDC__ENET_MDC              | MUX_PAD_CTRL(ENET_PAD_CTRL),
162         MX6_PAD_RGMII_TXC__RGMII_TXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
163         MX6_PAD_RGMII_TD0__RGMII_TD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
164         MX6_PAD_RGMII_TD1__RGMII_TD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
165         MX6_PAD_RGMII_TD2__RGMII_TD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
166         MX6_PAD_RGMII_TD3__RGMII_TD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
167         MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
168         MX6_PAD_ENET_REF_CLK__ENET_TX_CLK       | MUX_PAD_CTRL(ENET_PAD_CTRL),
169         /* pin 35 - 1 (PHY_AD2) on reset */
170         MX6_PAD_RGMII_RXC__GPIO6_IO30           | MUX_PAD_CTRL(NO_PAD_CTRL),
171         /* pin 32 - 1 - (MODE0) all */
172         MX6_PAD_RGMII_RD0__GPIO6_IO25           | MUX_PAD_CTRL(NO_PAD_CTRL),
173         /* pin 31 - 1 - (MODE1) all */
174         MX6_PAD_RGMII_RD1__GPIO6_IO27           | MUX_PAD_CTRL(NO_PAD_CTRL),
175         /* pin 28 - 1 - (MODE2) all */
176         MX6_PAD_RGMII_RD2__GPIO6_IO28           | MUX_PAD_CTRL(NO_PAD_CTRL),
177         /* pin 27 - 1 - (MODE3) all */
178         MX6_PAD_RGMII_RD3__GPIO6_IO29           | MUX_PAD_CTRL(NO_PAD_CTRL),
179         /* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
180         MX6_PAD_RGMII_RX_CTL__GPIO6_IO24        | MUX_PAD_CTRL(NO_PAD_CTRL),
181         /* pin 42 PHY nRST */
182         MX6_PAD_EIM_D23__GPIO3_IO23             | MUX_PAD_CTRL(NO_PAD_CTRL),
183         MX6_PAD_ENET_RXD0__GPIO1_IO27           | MUX_PAD_CTRL(NO_PAD_CTRL),
184 };
185
186 static iomux_v3_cfg_t const enet_pads2[] = {
187         MX6_PAD_RGMII_RXC__RGMII_RXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
188         MX6_PAD_RGMII_RD0__RGMII_RD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
189         MX6_PAD_RGMII_RD1__RGMII_RD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
190         MX6_PAD_RGMII_RD2__RGMII_RD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
191         MX6_PAD_RGMII_RD3__RGMII_RD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
192         MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
193 };
194
195 static iomux_v3_cfg_t const misc_pads[] = {
196         MX6_PAD_GPIO_1__USB_OTG_ID              | MUX_PAD_CTRL(WEAK_PULLUP),
197         MX6_PAD_KEY_COL4__USB_OTG_OC            | MUX_PAD_CTRL(WEAK_PULLUP),
198         MX6_PAD_EIM_D30__USB_H1_OC              | MUX_PAD_CTRL(WEAK_PULLUP),
199         /* OTG Power enable */
200         MX6_PAD_EIM_D22__GPIO3_IO22             | MUX_PAD_CTRL(OUTPUT_40OHM),
201 };
202
203 /* wl1271 pads on nitrogen6x */
204 static iomux_v3_cfg_t const wl12xx_pads[] = {
205         (MX6_PAD_NANDF_CS1__GPIO6_IO14 & ~MUX_PAD_CTRL_MASK)
206                 | MUX_PAD_CTRL(WEAK_PULLDOWN),
207         (MX6_PAD_NANDF_CS2__GPIO6_IO15 & ~MUX_PAD_CTRL_MASK)
208                 | MUX_PAD_CTRL(OUTPUT_40OHM),
209         (MX6_PAD_NANDF_CS3__GPIO6_IO16 & ~MUX_PAD_CTRL_MASK)
210                 | MUX_PAD_CTRL(OUTPUT_40OHM),
211 };
212 #define WL12XX_WL_IRQ_GP        IMX_GPIO_NR(6, 14)
213 #define WL12XX_WL_ENABLE_GP     IMX_GPIO_NR(6, 15)
214 #define WL12XX_BT_ENABLE_GP     IMX_GPIO_NR(6, 16)
215
216 /* Button assignments for J14 */
217 static iomux_v3_cfg_t const button_pads[] = {
218         /* Menu */
219         MX6_PAD_NANDF_D1__GPIO2_IO01    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
220         /* Back */
221         MX6_PAD_NANDF_D2__GPIO2_IO02    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
222         /* Labelled Search (mapped to Power under Android) */
223         MX6_PAD_NANDF_D3__GPIO2_IO03    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
224         /* Home */
225         MX6_PAD_NANDF_D4__GPIO2_IO04    | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
226         /* Volume Down */
227         MX6_PAD_GPIO_19__GPIO4_IO05     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
228         /* Volume Up */
229         MX6_PAD_GPIO_18__GPIO7_IO13     | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
230 };
231
232 static void setup_iomux_enet(void)
233 {
234         gpio_direction_output(IMX_GPIO_NR(3, 23), 0); /* SABRE Lite PHY rst */
235         gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* Nitrogen6X PHY rst */
236         gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
237         gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
238         gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
239         gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
240         gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
241         imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
242         gpio_direction_output(IMX_GPIO_NR(6, 24), 1);
243
244         /* Need delay 10ms according to KSZ9021 spec */
245         udelay(1000 * 10);
246         gpio_set_value(IMX_GPIO_NR(3, 23), 1); /* SABRE Lite PHY reset */
247         gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* Nitrogen6X PHY reset */
248
249         imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
250         udelay(100);    /* Wait 100 us before using mii interface */
251 }
252
253 static iomux_v3_cfg_t const usb_pads[] = {
254         MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),
255 };
256
257 static void setup_iomux_uart(void)
258 {
259         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
260         imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
261 }
262
263 #ifdef CONFIG_USB_EHCI_MX6
264 int board_ehci_hcd_init(int port)
265 {
266         imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
267
268         /* Reset USB hub */
269         gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
270         mdelay(2);
271         gpio_set_value(IMX_GPIO_NR(7, 12), 1);
272
273         return 0;
274 }
275
276 int board_ehci_power(int port, int on)
277 {
278         if (port)
279                 return 0;
280         gpio_set_value(GP_USB_OTG_PWR, on);
281         return 0;
282 }
283
284 #endif
285
286 #ifdef CONFIG_FSL_ESDHC
287 static struct fsl_esdhc_cfg usdhc_cfg[2] = {
288         {USDHC3_BASE_ADDR},
289         {USDHC4_BASE_ADDR},
290 };
291
292 int board_mmc_getcd(struct mmc *mmc)
293 {
294         struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
295         int gp_cd = (cfg->esdhc_base == USDHC3_BASE_ADDR) ? IMX_GPIO_NR(7, 0) :
296                         IMX_GPIO_NR(2, 6);
297
298         gpio_direction_input(gp_cd);
299         return !gpio_get_value(gp_cd);
300 }
301
302 int board_mmc_init(bd_t *bis)
303 {
304         s32 status = 0;
305         u32 index = 0;
306
307         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
308         usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
309
310         usdhc_cfg[0].max_bus_width = 4;
311         usdhc_cfg[1].max_bus_width = 4;
312
313         for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
314                 switch (index) {
315                 case 0:
316                         imx_iomux_v3_setup_multiple_pads(
317                                 usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
318                         break;
319                 case 1:
320                        imx_iomux_v3_setup_multiple_pads(
321                                usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
322                        break;
323                 default:
324                        printf("Warning: you configured more USDHC controllers"
325                                "(%d) then supported by the board (%d)\n",
326                                index + 1, CONFIG_SYS_FSL_USDHC_NUM);
327                        return status;
328                 }
329
330                 status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
331         }
332
333         return status;
334 }
335 #endif
336
337 #ifdef CONFIG_MXC_SPI
338 static iomux_v3_cfg_t const ecspi1_pads[] = {
339         /* SS1 */
340         MX6_PAD_EIM_D19__GPIO3_IO19  | MUX_PAD_CTRL(NO_PAD_CTRL),
341         MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
342         MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
343         MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
344 };
345
346 static void setup_spi(void)
347 {
348         imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
349                                          ARRAY_SIZE(ecspi1_pads));
350 }
351 #endif
352
353 int board_phy_config(struct phy_device *phydev)
354 {
355         /* min rx data delay */
356         ksz9021_phy_extended_write(phydev,
357                         MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
358         /* min tx data delay */
359         ksz9021_phy_extended_write(phydev,
360                         MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
361         /* max rx/tx clock delay, min rx/tx control */
362         ksz9021_phy_extended_write(phydev,
363                         MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
364         if (phydev->drv->config)
365                 phydev->drv->config(phydev);
366
367         return 0;
368 }
369
370 int board_eth_init(bd_t *bis)
371 {
372         uint32_t base = IMX_FEC_BASE;
373         struct mii_dev *bus = NULL;
374         struct phy_device *phydev = NULL;
375         int ret;
376
377         setup_iomux_enet();
378
379 #ifdef CONFIG_FEC_MXC
380         bus = fec_get_miibus(base, -1);
381         if (!bus)
382                 return 0;
383         /* scan phy 4,5,6,7 */
384         phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
385         if (!phydev) {
386                 free(bus);
387                 return 0;
388         }
389         printf("using phy at %d\n", phydev->addr);
390         ret  = fec_probe(bis, -1, base, bus, phydev);
391         if (ret) {
392                 printf("FEC MXC: %s:failed\n", __func__);
393                 free(phydev);
394                 free(bus);
395         }
396 #endif
397
398 #ifdef CONFIG_CI_UDC
399         /* For otg ethernet*/
400         usb_eth_initialize(bis);
401 #endif
402         return 0;
403 }
404
405 static void setup_buttons(void)
406 {
407         imx_iomux_v3_setup_multiple_pads(button_pads,
408                                          ARRAY_SIZE(button_pads));
409 }
410
411 #if defined(CONFIG_VIDEO_IPUV3)
412
413 static iomux_v3_cfg_t const backlight_pads[] = {
414         /* Backlight on RGB connector: J15 */
415         MX6_PAD_SD1_DAT3__GPIO1_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL),
416 #define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
417
418         /* Backlight on LVDS connector: J6 */
419         MX6_PAD_SD1_CMD__GPIO1_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
420 #define LVDS_BACKLIGHT_GP IMX_GPIO_NR(1, 18)
421 };
422
423 static iomux_v3_cfg_t const rgb_pads[] = {
424         MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
425         MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
426         MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02,
427         MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03,
428         MX6_PAD_DI0_PIN4__GPIO4_IO20,
429         MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
430         MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
431         MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
432         MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
433         MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
434         MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
435         MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
436         MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
437         MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
438         MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
439         MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
440         MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
441         MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
442         MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
443         MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
444         MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
445         MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
446         MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
447         MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18,
448         MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19,
449         MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20,
450         MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21,
451         MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22,
452         MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
453 };
454
455 static void do_enable_hdmi(struct display_info_t const *dev)
456 {
457         imx_enable_hdmi_phy();
458 }
459
460 static int detect_i2c(struct display_info_t const *dev)
461 {
462         return ((0 == i2c_set_bus_num(dev->bus))
463                 &&
464                 (0 == i2c_probe(dev->addr)));
465 }
466
467 static void enable_lvds(struct display_info_t const *dev)
468 {
469         struct iomuxc *iomux = (struct iomuxc *)
470                                 IOMUXC_BASE_ADDR;
471         u32 reg = readl(&iomux->gpr[2]);
472         reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
473         writel(reg, &iomux->gpr[2]);
474         gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
475 }
476
477 static void enable_lvds_jeida(struct display_info_t const *dev)
478 {
479         struct iomuxc *iomux = (struct iomuxc *)
480                                 IOMUXC_BASE_ADDR;
481         u32 reg = readl(&iomux->gpr[2]);
482         reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT
483              |IOMUXC_GPR2_BIT_MAPPING_CH0_JEIDA;
484         writel(reg, &iomux->gpr[2]);
485         gpio_direction_output(LVDS_BACKLIGHT_GP, 1);
486 }
487
488 static void enable_rgb(struct display_info_t const *dev)
489 {
490         imx_iomux_v3_setup_multiple_pads(
491                 rgb_pads,
492                  ARRAY_SIZE(rgb_pads));
493         gpio_direction_output(RGB_BACKLIGHT_GP, 1);
494 }
495
496 struct display_info_t const displays[] = {{
497         .bus    = -1,
498         .addr   = 0,
499         .pixfmt = IPU_PIX_FMT_RGB24,
500         .detect = detect_hdmi,
501         .enable = do_enable_hdmi,
502         .mode   = {
503                 .name           = "HDMI",
504                 .refresh        = 60,
505                 .xres           = 1024,
506                 .yres           = 768,
507                 .pixclock       = 15385,
508                 .left_margin    = 220,
509                 .right_margin   = 40,
510                 .upper_margin   = 21,
511                 .lower_margin   = 7,
512                 .hsync_len      = 60,
513                 .vsync_len      = 10,
514                 .sync           = FB_SYNC_EXT,
515                 .vmode          = FB_VMODE_NONINTERLACED
516 } }, {
517         .bus    = 0,
518         .addr   = 0,
519         .pixfmt = IPU_PIX_FMT_RGB24,
520         .detect = NULL,
521         .enable = enable_lvds_jeida,
522         .mode   = {
523                 .name           = "LDB-WXGA",
524                 .refresh        = 60,
525                 .xres           = 1280,
526                 .yres           = 800,
527                 .pixclock       = 14065,
528                 .left_margin    = 40,
529                 .right_margin   = 40,
530                 .upper_margin   = 3,
531                 .lower_margin   = 80,
532                 .hsync_len      = 10,
533                 .vsync_len      = 10,
534                 .sync           = FB_SYNC_EXT,
535                 .vmode          = FB_VMODE_NONINTERLACED
536 } }, {
537         .bus    = 2,
538         .addr   = 0x4,
539         .pixfmt = IPU_PIX_FMT_LVDS666,
540         .detect = detect_i2c,
541         .enable = enable_lvds,
542         .mode   = {
543                 .name           = "Hannstar-XGA",
544                 .refresh        = 60,
545                 .xres           = 1024,
546                 .yres           = 768,
547                 .pixclock       = 15385,
548                 .left_margin    = 220,
549                 .right_margin   = 40,
550                 .upper_margin   = 21,
551                 .lower_margin   = 7,
552                 .hsync_len      = 60,
553                 .vsync_len      = 10,
554                 .sync           = FB_SYNC_EXT,
555                 .vmode          = FB_VMODE_NONINTERLACED
556 } }, {
557         .bus    = 0,
558         .addr   = 0,
559         .pixfmt = IPU_PIX_FMT_LVDS666,
560         .detect = NULL,
561         .enable = enable_lvds,
562         .mode   = {
563                 .name           = "LG-9.7",
564                 .refresh        = 60,
565                 .xres           = 1024,
566                 .yres           = 768,
567                 .pixclock       = 15385, /* ~65MHz */
568                 .left_margin    = 480,
569                 .right_margin   = 260,
570                 .upper_margin   = 16,
571                 .lower_margin   = 6,
572                 .hsync_len      = 250,
573                 .vsync_len      = 10,
574                 .sync           = FB_SYNC_EXT,
575                 .vmode          = FB_VMODE_NONINTERLACED
576 } }, {
577         .bus    = 2,
578         .addr   = 0x38,
579         .pixfmt = IPU_PIX_FMT_LVDS666,
580         .detect = detect_i2c,
581         .enable = enable_lvds,
582         .mode   = {
583                 .name           = "wsvga-lvds",
584                 .refresh        = 60,
585                 .xres           = 1024,
586                 .yres           = 600,
587                 .pixclock       = 15385,
588                 .left_margin    = 220,
589                 .right_margin   = 40,
590                 .upper_margin   = 21,
591                 .lower_margin   = 7,
592                 .hsync_len      = 60,
593                 .vsync_len      = 10,
594                 .sync           = FB_SYNC_EXT,
595                 .vmode          = FB_VMODE_NONINTERLACED
596 } }, {
597         .bus    = 2,
598         .addr   = 0x48,
599         .pixfmt = IPU_PIX_FMT_RGB666,
600         .detect = detect_i2c,
601         .enable = enable_rgb,
602         .mode   = {
603                 .name           = "wvga-rgb",
604                 .refresh        = 57,
605                 .xres           = 800,
606                 .yres           = 480,
607                 .pixclock       = 37037,
608                 .left_margin    = 40,
609                 .right_margin   = 60,
610                 .upper_margin   = 10,
611                 .lower_margin   = 10,
612                 .hsync_len      = 20,
613                 .vsync_len      = 10,
614                 .sync           = 0,
615                 .vmode          = FB_VMODE_NONINTERLACED
616 } }, {
617         .bus    = 0,
618         .addr   = 0,
619         .pixfmt = IPU_PIX_FMT_RGB24,
620         .detect = NULL,
621         .enable = enable_rgb,
622         .mode   = {
623                 .name           = "qvga",
624                 .refresh        = 60,
625                 .xres           = 320,
626                 .yres           = 240,
627                 .pixclock       = 37037,
628                 .left_margin    = 38,
629                 .right_margin   = 37,
630                 .upper_margin   = 16,
631                 .lower_margin   = 15,
632                 .hsync_len      = 30,
633                 .vsync_len      = 3,
634                 .sync           = 0,
635                 .vmode          = FB_VMODE_NONINTERLACED
636 } } };
637 size_t display_count = ARRAY_SIZE(displays);
638
639 int board_cfb_skip(void)
640 {
641         return NULL != getenv("novideo");
642 }
643
644 static void setup_display(void)
645 {
646         struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
647         struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
648         int reg;
649
650         enable_ipu_clock();
651         imx_setup_hdmi();
652         /* Turn on LDB0,IPU,IPU DI0 clocks */
653         reg = __raw_readl(&mxc_ccm->CCGR3);
654         reg |=  MXC_CCM_CCGR3_LDB_DI0_MASK;
655         writel(reg, &mxc_ccm->CCGR3);
656
657         /* set LDB0, LDB1 clk select to 011/011 */
658         reg = readl(&mxc_ccm->cs2cdr);
659         reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
660                  |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
661         reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
662               |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
663         writel(reg, &mxc_ccm->cs2cdr);
664
665         reg = readl(&mxc_ccm->cscmr2);
666         reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
667         writel(reg, &mxc_ccm->cscmr2);
668
669         reg = readl(&mxc_ccm->chsccdr);
670         reg |= (CHSCCDR_CLK_SEL_LDB_DI0
671                 <<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
672         writel(reg, &mxc_ccm->chsccdr);
673
674         reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
675              |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
676              |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
677              |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
678              |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
679              |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
680              |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
681              |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
682              |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
683         writel(reg, &iomux->gpr[2]);
684
685         reg = readl(&iomux->gpr[3]);
686         reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK
687                         |IOMUXC_GPR3_HDMI_MUX_CTL_MASK))
688             | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
689                <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
690         writel(reg, &iomux->gpr[3]);
691
692         /* backlights off until needed */
693         imx_iomux_v3_setup_multiple_pads(backlight_pads,
694                                          ARRAY_SIZE(backlight_pads));
695         gpio_direction_input(LVDS_BACKLIGHT_GP);
696         gpio_direction_input(RGB_BACKLIGHT_GP);
697 }
698 #endif
699
700 static iomux_v3_cfg_t const init_pads[] = {
701         /* SGTL5000 sys_mclk */
702         NEW_PAD_CTRL(MX6_PAD_GPIO_0__CCM_CLKO1, OUTPUT_40OHM),
703
704         /* J5 - Camera MCLK */
705         NEW_PAD_CTRL(MX6_PAD_GPIO_3__CCM_CLKO2, OUTPUT_40OHM),
706
707         /* wl1271 pads on nitrogen6x */
708         /* WL12XX_WL_IRQ_GP */
709         NEW_PAD_CTRL(MX6_PAD_NANDF_CS1__GPIO6_IO14, WEAK_PULLDOWN),
710         /* WL12XX_WL_ENABLE_GP */
711         NEW_PAD_CTRL(MX6_PAD_NANDF_CS2__GPIO6_IO15, OUTPUT_40OHM),
712         /* WL12XX_BT_ENABLE_GP */
713         NEW_PAD_CTRL(MX6_PAD_NANDF_CS3__GPIO6_IO16, OUTPUT_40OHM),
714         /* USB otg power */
715         NEW_PAD_CTRL(MX6_PAD_EIM_D22__GPIO3_IO22, OUTPUT_40OHM),
716         NEW_PAD_CTRL(MX6_PAD_NANDF_D5__GPIO2_IO05, OUTPUT_40OHM),
717         NEW_PAD_CTRL(MX6_PAD_NANDF_WP_B__GPIO6_IO09, OUTPUT_40OHM),
718         NEW_PAD_CTRL(MX6_PAD_GPIO_8__GPIO1_IO08, OUTPUT_40OHM),
719         NEW_PAD_CTRL(MX6_PAD_GPIO_6__GPIO1_IO06, OUTPUT_40OHM),
720 };
721
722 #define WL12XX_WL_IRQ_GP        IMX_GPIO_NR(6, 14)
723
724 static unsigned gpios_out_low[] = {
725         /* Disable wl1271 */
726         IMX_GPIO_NR(6, 15),     /* disable wireless */
727         IMX_GPIO_NR(6, 16),     /* disable bluetooth */
728         IMX_GPIO_NR(3, 22),     /* disable USB otg power */
729         IMX_GPIO_NR(2, 5),      /* ov5640 mipi camera reset */
730         IMX_GPIO_NR(1, 8),      /* ov5642 reset */
731 };
732
733 static unsigned gpios_out_high[] = {
734         IMX_GPIO_NR(1, 6),      /* ov5642 powerdown */
735         IMX_GPIO_NR(6, 9),      /* ov5640 mipi camera power down */
736 };
737
738 static void set_gpios(unsigned *p, int cnt, int val)
739 {
740         int i;
741
742         for (i = 0; i < cnt; i++)
743                 gpio_direction_output(*p++, val);
744 }
745
746 int board_early_init_f(void)
747 {
748         setup_iomux_uart();
749
750         set_gpios(gpios_out_high, ARRAY_SIZE(gpios_out_high), 1);
751         set_gpios(gpios_out_low, ARRAY_SIZE(gpios_out_low), 0);
752         gpio_direction_input(WL12XX_WL_IRQ_GP);
753
754         imx_iomux_v3_setup_multiple_pads(wl12xx_pads, ARRAY_SIZE(wl12xx_pads));
755         imx_iomux_v3_setup_multiple_pads(init_pads, ARRAY_SIZE(init_pads));
756         setup_buttons();
757
758 #if defined(CONFIG_VIDEO_IPUV3)
759         setup_display();
760 #endif
761         return 0;
762 }
763
764 /*
765  * Do not overwrite the console
766  * Use always serial for U-Boot console
767  */
768 int overwrite_console(void)
769 {
770         return 1;
771 }
772
773 int board_init(void)
774 {
775         struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
776
777         clrsetbits_le32(&iomuxc_regs->gpr[1],
778                         IOMUXC_GPR1_OTG_ID_MASK,
779                         IOMUXC_GPR1_OTG_ID_GPIO1);
780
781         imx_iomux_v3_setup_multiple_pads(misc_pads, ARRAY_SIZE(misc_pads));
782
783         /* address of boot parameters */
784         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
785
786 #ifdef CONFIG_MXC_SPI
787         setup_spi();
788 #endif
789         imx_iomux_v3_setup_multiple_pads(
790                 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
791         setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
792         setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
793         setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
794
795 #ifdef CONFIG_CMD_SATA
796         setup_sata();
797 #endif
798
799         return 0;
800 }
801
802 int checkboard(void)
803 {
804         if (gpio_get_value(WL12XX_WL_IRQ_GP))
805                 puts("Board: Nitrogen6X\n");
806         else
807                 puts("Board: SABRE Lite\n");
808
809         return 0;
810 }
811
812 struct button_key {
813         char const      *name;
814         unsigned        gpnum;
815         char            ident;
816 };
817
818 static struct button_key const buttons[] = {
819         {"back",        IMX_GPIO_NR(2, 2),      'B'},
820         {"home",        IMX_GPIO_NR(2, 4),      'H'},
821         {"menu",        IMX_GPIO_NR(2, 1),      'M'},
822         {"search",      IMX_GPIO_NR(2, 3),      'S'},
823         {"volup",       IMX_GPIO_NR(7, 13),     'V'},
824         {"voldown",     IMX_GPIO_NR(4, 5),      'v'},
825 };
826
827 /*
828  * generate a null-terminated string containing the buttons pressed
829  * returns number of keys pressed
830  */
831 static int read_keys(char *buf)
832 {
833         int i, numpressed = 0;
834         for (i = 0; i < ARRAY_SIZE(buttons); i++) {
835                 if (!gpio_get_value(buttons[i].gpnum))
836                         buf[numpressed++] = buttons[i].ident;
837         }
838         buf[numpressed] = '\0';
839         return numpressed;
840 }
841
842 static int do_kbd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
843 {
844         char envvalue[ARRAY_SIZE(buttons)+1];
845         int numpressed = read_keys(envvalue);
846         setenv("keybd", envvalue);
847         return numpressed == 0;
848 }
849
850 U_BOOT_CMD(
851         kbd, 1, 1, do_kbd,
852         "Tests for keypresses, sets 'keybd' environment variable",
853         "Returns 0 (true) to shell if key is pressed."
854 );
855
856 #ifdef CONFIG_PREBOOT
857 static char const kbd_magic_prefix[] = "key_magic";
858 static char const kbd_command_prefix[] = "key_cmd";
859
860 static void preboot_keys(void)
861 {
862         int numpressed;
863         char keypress[ARRAY_SIZE(buttons)+1];
864         numpressed = read_keys(keypress);
865         if (numpressed) {
866                 char *kbd_magic_keys = getenv("magic_keys");
867                 char *suffix;
868                 /*
869                  * loop over all magic keys
870                  */
871                 for (suffix = kbd_magic_keys; *suffix; ++suffix) {
872                         char *keys;
873                         char magic[sizeof(kbd_magic_prefix) + 1];
874                         sprintf(magic, "%s%c", kbd_magic_prefix, *suffix);
875                         keys = getenv(magic);
876                         if (keys) {
877                                 if (!strcmp(keys, keypress))
878                                         break;
879                         }
880                 }
881                 if (*suffix) {
882                         char cmd_name[sizeof(kbd_command_prefix) + 1];
883                         char *cmd;
884                         sprintf(cmd_name, "%s%c", kbd_command_prefix, *suffix);
885                         cmd = getenv(cmd_name);
886                         if (cmd) {
887                                 setenv("preboot", cmd);
888                                 return;
889                         }
890                 }
891         }
892 }
893 #endif
894
895 #ifdef CONFIG_CMD_BMODE
896 static const struct boot_mode board_boot_modes[] = {
897         /* 4 bit bus width */
898         {"mmc0",        MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
899         {"mmc1",        MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
900         {NULL,          0},
901 };
902 #endif
903
904 int misc_init_r(void)
905 {
906 #ifdef CONFIG_PREBOOT
907         preboot_keys();
908 #endif
909
910 #ifdef CONFIG_CMD_BMODE
911         add_board_boot_modes(board_boot_modes);
912 #endif
913         return 0;
914 }