74d7a17028b3b77848cdd32f0a112b2e27dc4303
[oweals/u-boot.git] / board / wandboard / wandboard.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2013 Freescale Semiconductor, Inc.
4  * Copyright (C) 2014 O.S. Systems Software LTDA.
5  *
6  * Author: Fabio Estevam <fabio.estevam@freescale.com>
7  */
8
9 #include <asm/arch/clock.h>
10 #include <asm/arch/crm_regs.h>
11 #include <asm/arch/iomux.h>
12 #include <asm/arch/imx-regs.h>
13 #include <asm/arch/mx6-pins.h>
14 #include <asm/arch/mxc_hdmi.h>
15 #include <asm/arch/sys_proto.h>
16 #include <asm/gpio.h>
17 #include <asm/mach-imx/iomux-v3.h>
18 #include <asm/mach-imx/mxc_i2c.h>
19 #include <asm/mach-imx/boot_mode.h>
20 #include <asm/mach-imx/video.h>
21 #include <asm/mach-imx/sata.h>
22 #include <asm/io.h>
23 #include <linux/sizes.h>
24 #include <common.h>
25 #include <miiphy.h>
26 #include <netdev.h>
27 #include <phy.h>
28 #include <i2c.h>
29 #include <power/pmic.h>
30 #include <power/pfuze100_pmic.h>
31
32 DECLARE_GLOBAL_DATA_PTR;
33
34 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
35         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
36         PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
37
38 #define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
39         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
40
41 #define I2C_PAD_CTRL    (PAD_CTL_PUS_100K_UP |                  \
42         PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
43         PAD_CTL_ODE | PAD_CTL_SRE_FAST)
44
45 #define ETH_PHY_RESET           IMX_GPIO_NR(3, 29)
46 #define ETH_PHY_AR8035_POWER    IMX_GPIO_NR(7, 13)
47 #define REV_DETECTION           IMX_GPIO_NR(2, 28)
48
49 /* Speed defined in Kconfig is only applicable when not using DM_I2C.  */
50 #ifdef CONFIG_DM_I2C
51 #define I2C1_SPEED_NON_DM       0
52 #define I2C2_SPEED_NON_DM       0
53 #else
54 #define I2C1_SPEED_NON_DM       CONFIG_SYS_MXC_I2C1_SPEED
55 #define I2C2_SPEED_NON_DM       CONFIG_SYS_MXC_I2C2_SPEED
56 #endif
57
58 static bool with_pmic;
59
60 int dram_init(void)
61 {
62         gd->ram_size = imx_ddr_size();
63
64         return 0;
65 }
66
67 static iomux_v3_cfg_t const uart1_pads[] = {
68         IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
69         IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
70 };
71
72 static iomux_v3_cfg_t const enet_pads[] = {
73         IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
74         IOMUX_PADS(PAD_ENET_MDC__ENET_MDC    | MUX_PAD_CTRL(ENET_PAD_CTRL)),
75         IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
76         IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
77         IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
78         IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
79         IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
80         IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
81         IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
82         IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
83         IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
84         IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
85         IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
86         IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3  | MUX_PAD_CTRL(ENET_PAD_CTRL)),
87         IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
88         /* AR8031 PHY Reset */
89         IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29    | MUX_PAD_CTRL(NO_PAD_CTRL)),
90 };
91
92 static iomux_v3_cfg_t const enet_ar8035_power_pads[] = {
93         /* AR8035 POWER */
94         IOMUX_PADS(PAD_GPIO_18__GPIO7_IO13    | MUX_PAD_CTRL(NO_PAD_CTRL)),
95 };
96
97 static iomux_v3_cfg_t const rev_detection_pad[] = {
98         IOMUX_PADS(PAD_EIM_EB0__GPIO2_IO28  | MUX_PAD_CTRL(NO_PAD_CTRL)),
99 };
100
101 static void setup_iomux_uart(void)
102 {
103         SETUP_IOMUX_PADS(uart1_pads);
104 }
105
106 static void setup_iomux_enet(void)
107 {
108         SETUP_IOMUX_PADS(enet_pads);
109
110         if (with_pmic) {
111                 SETUP_IOMUX_PADS(enet_ar8035_power_pads);
112                 /* enable AR8035 POWER */
113                 gpio_request(ETH_PHY_AR8035_POWER, "PHY_POWER");
114                 gpio_direction_output(ETH_PHY_AR8035_POWER, 0);
115         }
116         /* wait until 3.3V of PHY and clock become stable */
117         mdelay(10);
118
119         /* Reset AR8031 PHY */
120         gpio_request(ETH_PHY_RESET, "PHY_RESET");
121         gpio_direction_output(ETH_PHY_RESET, 0);
122         mdelay(10);
123         gpio_set_value(ETH_PHY_RESET, 1);
124         udelay(100);
125 }
126
127 static int ar8031_phy_fixup(struct phy_device *phydev)
128 {
129         unsigned short val;
130         int mask;
131
132         /* To enable AR8031 ouput a 125MHz clk from CLK_25M */
133         phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
134         phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
135         phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
136
137         val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
138         if (with_pmic)
139                 mask = 0xffe7;  /* AR8035 */
140         else
141                 mask = 0xffe3;  /* AR8031 */
142
143         val &= mask;
144         val |= 0x18;
145         phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
146
147         /* introduce tx clock delay */
148         phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
149         val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
150         val |= 0x0100;
151         phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
152
153         return 0;
154 }
155
156 int board_phy_config(struct phy_device *phydev)
157 {
158         ar8031_phy_fixup(phydev);
159
160         if (phydev->drv->config)
161                 phydev->drv->config(phydev);
162
163         return 0;
164 }
165
166 #if defined(CONFIG_VIDEO_IPUV3)
167 struct i2c_pads_info mx6q_i2c2_pad_info = {
168         .scl = {
169                 .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL
170                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
171                 .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12
172                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
173                 .gp = IMX_GPIO_NR(4, 12)
174         },
175         .sda = {
176                 .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA
177                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
178                 .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13
179                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
180                 .gp = IMX_GPIO_NR(4, 13)
181         }
182 };
183
184 struct i2c_pads_info mx6dl_i2c2_pad_info = {
185         .scl = {
186                 .i2c_mode = MX6DL_PAD_KEY_COL3__I2C2_SCL
187                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
188                 .gpio_mode = MX6DL_PAD_KEY_COL3__GPIO4_IO12
189                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
190                 .gp = IMX_GPIO_NR(4, 12)
191         },
192         .sda = {
193                 .i2c_mode = MX6DL_PAD_KEY_ROW3__I2C2_SDA
194                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
195                 .gpio_mode = MX6DL_PAD_KEY_ROW3__GPIO4_IO13
196                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
197                 .gp = IMX_GPIO_NR(4, 13)
198         }
199 };
200
201 struct i2c_pads_info mx6q_i2c3_pad_info = {
202         .scl = {
203                 .i2c_mode = MX6Q_PAD_GPIO_5__I2C3_SCL
204                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
205                 .gpio_mode = MX6Q_PAD_GPIO_5__GPIO1_IO05
206                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
207                 .gp = IMX_GPIO_NR(1, 5)
208         },
209         .sda = {
210                 .i2c_mode = MX6Q_PAD_GPIO_16__I2C3_SDA
211                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
212                 .gpio_mode = MX6Q_PAD_GPIO_16__GPIO7_IO11
213                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
214                 .gp = IMX_GPIO_NR(7, 11)
215         }
216 };
217
218 struct i2c_pads_info mx6dl_i2c3_pad_info = {
219         .scl = {
220                 .i2c_mode = MX6DL_PAD_GPIO_5__I2C3_SCL
221                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
222                 .gpio_mode = MX6DL_PAD_GPIO_5__GPIO1_IO05
223                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
224                 .gp = IMX_GPIO_NR(1, 5)
225         },
226         .sda = {
227                 .i2c_mode = MX6DL_PAD_GPIO_16__I2C3_SDA
228                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
229                 .gpio_mode = MX6DL_PAD_GPIO_16__GPIO7_IO11
230                         | MUX_PAD_CTRL(I2C_PAD_CTRL),
231                 .gp = IMX_GPIO_NR(7, 11)
232         }
233 };
234
235 static iomux_v3_cfg_t const fwadapt_7wvga_pads[] = {
236         IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK),
237         IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02), /* HSync */
238         IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03), /* VSync */
239         IOMUX_PADS(PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(PAD_CTL_DSE_120ohm)), /* Contrast */
240         IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15), /* DISP0_DRDY */
241         IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00),
242         IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01),
243         IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02),
244         IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03),
245         IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04),
246         IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05),
247         IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06),
248         IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07),
249         IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08),
250         IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09),
251         IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10),
252         IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11),
253         IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12),
254         IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13),
255         IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14),
256         IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15),
257         IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16),
258         IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17),
259         IOMUX_PADS(PAD_SD4_DAT2__GPIO2_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_BKLEN */
260         IOMUX_PADS(PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL)), /* DISP0_VDDEN */
261 };
262
263 static void do_enable_hdmi(struct display_info_t const *dev)
264 {
265         imx_enable_hdmi_phy();
266 }
267
268 static int detect_i2c(struct display_info_t const *dev)
269 {
270 #ifdef CONFIG_DM_I2C
271         struct udevice *bus, *udev;
272         int rc;
273
274         rc = uclass_get_device_by_seq(UCLASS_I2C, dev->bus, &bus);
275         if (rc)
276                 return rc;
277         rc = dm_i2c_probe(bus, dev->addr, 0, &udev);
278         if (rc)
279                 return 0;
280         return 1;
281 #else
282         return (0 == i2c_set_bus_num(dev->bus)) &&
283                         (0 == i2c_probe(dev->addr));
284 #endif
285 }
286
287 static void enable_fwadapt_7wvga(struct display_info_t const *dev)
288 {
289         SETUP_IOMUX_PADS(fwadapt_7wvga_pads);
290
291         gpio_request(IMX_GPIO_NR(2, 10), "DISP0_BKLEN");
292         gpio_request(IMX_GPIO_NR(2, 11), "DISP0_VDDEN");
293         gpio_direction_output(IMX_GPIO_NR(2, 10), 1);
294         gpio_direction_output(IMX_GPIO_NR(2, 11), 1);
295 }
296
297 struct display_info_t const displays[] = {{
298         .bus    = -1,
299         .addr   = 0,
300         .pixfmt = IPU_PIX_FMT_RGB24,
301         .detect = detect_hdmi,
302         .enable = do_enable_hdmi,
303         .mode   = {
304                 .name           = "HDMI",
305                 .refresh        = 60,
306                 .xres           = 1024,
307                 .yres           = 768,
308                 .pixclock       = 15385,
309                 .left_margin    = 220,
310                 .right_margin   = 40,
311                 .upper_margin   = 21,
312                 .lower_margin   = 7,
313                 .hsync_len      = 60,
314                 .vsync_len      = 10,
315                 .sync           = FB_SYNC_EXT,
316                 .vmode          = FB_VMODE_NONINTERLACED
317 } }, {
318         .bus    = 1,
319         .addr   = 0x10,
320         .pixfmt = IPU_PIX_FMT_RGB666,
321         .detect = detect_i2c,
322         .enable = enable_fwadapt_7wvga,
323         .mode   = {
324                 .name           = "FWBADAPT-LCD-F07A-0102",
325                 .refresh        = 60,
326                 .xres           = 800,
327                 .yres           = 480,
328                 .pixclock       = 33260,
329                 .left_margin    = 128,
330                 .right_margin   = 128,
331                 .upper_margin   = 22,
332                 .lower_margin   = 22,
333                 .hsync_len      = 1,
334                 .vsync_len      = 1,
335                 .sync           = 0,
336                 .vmode          = FB_VMODE_NONINTERLACED
337 } } };
338 size_t display_count = ARRAY_SIZE(displays);
339
340 static void setup_display(void)
341 {
342         struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
343         int reg;
344
345         enable_ipu_clock();
346         imx_setup_hdmi();
347
348         reg = readl(&mxc_ccm->chsccdr);
349         reg |= (CHSCCDR_CLK_SEL_LDB_DI0
350                 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
351         writel(reg, &mxc_ccm->chsccdr);
352
353         /* Disable LCD backlight */
354         SETUP_IOMUX_PAD(PAD_DI0_PIN4__GPIO4_IO20);
355         gpio_request(IMX_GPIO_NR(4, 20), "LCD_BKLEN");
356         gpio_direction_input(IMX_GPIO_NR(4, 20));
357 }
358 #endif /* CONFIG_VIDEO_IPUV3 */
359
360 int board_eth_init(bd_t *bis)
361 {
362         setup_iomux_enet();
363
364         return cpu_eth_init(bis);
365 }
366
367 int board_early_init_f(void)
368 {
369         setup_iomux_uart();
370 #ifdef CONFIG_SATA
371         setup_sata();
372 #endif
373
374         return 0;
375 }
376
377 #define PMIC_I2C_BUS            2
378
379 int power_init_board(void)
380 {
381         struct udevice *dev;
382         int reg, ret;
383
384         puts("PMIC:  ");
385
386         ret = pmic_get("pfuze100", &dev);
387         if (ret < 0) {
388                 printf("pmic_get() ret %d\n", ret);
389                 return 0;
390         }
391
392         reg = pmic_reg_read(dev, PFUZE100_DEVICEID);
393         if (reg < 0) {
394                 printf("pmic_reg_read() ret %d\n", reg);
395                 return 0;
396         }
397         printf("PMIC:  PFUZE100 ID=0x%02x\n", reg);
398         with_pmic = true;
399
400         /* Set VGEN2 to 1.5V and enable */
401         reg = pmic_reg_read(dev, PFUZE100_VGEN2VOL);
402         reg &= ~(LDO_VOL_MASK);
403         reg |= (LDOA_1_50V | (1 << (LDO_EN)));
404         pmic_reg_write(dev, PFUZE100_VGEN2VOL, reg);
405         return 0;
406 }
407
408 /*
409  * Do not overwrite the console
410  * Use always serial for U-Boot console
411  */
412 int overwrite_console(void)
413 {
414         return 1;
415 }
416
417 #ifdef CONFIG_CMD_BMODE
418 static const struct boot_mode board_boot_modes[] = {
419         /* 4 bit bus width */
420         {"mmc0",          MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
421         {"mmc1",          MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
422         {NULL,   0},
423 };
424 #endif
425
426 static bool is_revc1(void)
427 {
428         SETUP_IOMUX_PADS(rev_detection_pad);
429         gpio_direction_input(REV_DETECTION);
430
431         if (gpio_get_value(REV_DETECTION))
432                 return true;
433         else
434                 return false;
435 }
436
437 static bool is_revd1(void)
438 {
439         if (with_pmic)
440                 return true;
441         else
442                 return false;
443 }
444
445 int board_late_init(void)
446 {
447 #ifdef CONFIG_CMD_BMODE
448         add_board_boot_modes(board_boot_modes);
449 #endif
450
451 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
452         if (is_mx6dqp())
453                 env_set("board_rev", "MX6QP");
454         else if (is_mx6dq())
455                 env_set("board_rev", "MX6Q");
456         else
457                 env_set("board_rev", "MX6DL");
458
459         if (is_revd1())
460                 env_set("board_name", "D1");
461         else if (is_revc1())
462                 env_set("board_name", "C1");
463         else
464                 env_set("board_name", "B1");
465 #endif
466         return 0;
467 }
468
469 int board_init(void)
470 {
471         /* address of boot parameters */
472         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
473
474 #if defined(CONFIG_VIDEO_IPUV3)
475         setup_i2c(1, I2C1_SPEED_NON_DM, 0x7f, &mx6dl_i2c2_pad_info);
476         if (is_mx6dq() || is_mx6dqp()) {
477                 setup_i2c(1, I2C1_SPEED_NON_DM, 0x7f, &mx6q_i2c2_pad_info);
478                 setup_i2c(2, I2C2_SPEED_NON_DM, 0x7f, &mx6q_i2c3_pad_info);
479         } else {
480                 setup_i2c(1, I2C1_SPEED_NON_DM, 0x7f, &mx6dl_i2c2_pad_info);
481                 setup_i2c(2, I2C2_SPEED_NON_DM, 0x7f, &mx6dl_i2c3_pad_info);
482         }
483
484         setup_display();
485 #endif
486
487         return 0;
488 }
489
490 int checkboard(void)
491 {
492         gpio_request(REV_DETECTION, "REV_DETECT");
493
494         if (is_revd1())
495                 puts("Board: Wandboard rev D1\n");
496         else if (is_revc1())
497                 puts("Board: Wandboard rev C1\n");
498         else
499                 puts("Board: Wandboard rev B1\n");
500
501         return 0;
502 }
503
504 #ifdef CONFIG_SPL_LOAD_FIT
505 int board_fit_config_name_match(const char *name)
506 {
507         if (is_mx6dq()) {
508                 if (!strcmp(name, "imx6q-wandboard-revb1"))
509                         return 0;
510         } else if (is_mx6dqp()) {
511                 if (!strcmp(name, "imx6qp-wandboard-revd1"))
512                         return 0;
513         } else if (is_mx6dl() || is_mx6solo()) {
514                 if (!strcmp(name, "imx6dl-wandboard-revb1"))
515                         return 0;
516         }
517
518         return -EINVAL;
519 }
520 #endif