1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Board functions for Compulab CM-FX6 board
4 *
5 * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
6 *
7 * Author: Nikita Kiryanov <nikita@compulab.co.il>
8 */
9
10 #include <common.h>
11 #include <ahci.h>
12 #include <dm.h>
13 #include <dwc_ahsata.h>
14 #include <env.h>
15 #include <fsl_esdhc_imx.h>
16 #include <init.h>
17 #include <miiphy.h>
18 #include <mtd_node.h>
19 #include <net.h>
20 #include <netdev.h>
21 #include <errno.h>
22 #include <usb.h>
23 #include <fdt_support.h>
24 #include <sata.h>
25 #include <splash.h>
26 #include <asm/arch/crm_regs.h>
27 #include <asm/arch/sys_proto.h>
28 #include <asm/arch/iomux.h>
29 #include <asm/arch/mxc_hdmi.h>
30 #include <asm/global_data.h>
31 #include <asm/mach-imx/mxc_i2c.h>
32 #include <asm/mach-imx/sata.h>
33 #include <asm/mach-imx/video.h>
34 #include <asm/io.h>
35 #include <asm/gpio.h>
36 #include <dm/platform_data/serial_mxc.h>
37 #include <dm/device-internal.h>
38 #include <jffs2/load_kernel.h>
39 #include <linux/delay.h>
40 #include "common.h"
41 #include "../common/eeprom.h"
42 #include "../common/common.h"
43
44 DECLARE_GLOBAL_DATA_PTR;
45
46 #ifdef CONFIG_SPLASH_SCREEN
47 static struct splash_location cm_fx6_splash_locations[] = {
48 {
49 .name = "sf",
50 .storage = SPLASH_STORAGE_SF,
51 .flags = SPLASH_STORAGE_RAW,
52 .offset = 0x100000,
53 },
54 {
55 .name = "mmc_fs",
56 .storage = SPLASH_STORAGE_MMC,
57 .flags = SPLASH_STORAGE_FS,
58 .devpart = "2:1",
59 },
60 {
61 .name = "usb_fs",
62 .storage = SPLASH_STORAGE_USB,
63 .flags = SPLASH_STORAGE_FS,
64 .devpart = "0:1",
65 },
66 {
67 .name = "sata_fs",
68 .storage = SPLASH_STORAGE_SATA,
69 .flags = SPLASH_STORAGE_FS,
70 .devpart = "0:1",
71 },
72 };
73
splash_screen_prepare(void)74 int splash_screen_prepare(void)
75 {
76 return splash_source_load(cm_fx6_splash_locations,
77 ARRAY_SIZE(cm_fx6_splash_locations));
78 }
79 #endif
80
81 #ifdef CONFIG_IMX_HDMI
cm_fx6_enable_hdmi(struct display_info_t const * dev)82 static void cm_fx6_enable_hdmi(struct display_info_t const *dev)
83 {
84 struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
85 imx_setup_hdmi();
86 setbits_le32(&mxc_ccm->CCGR3, MXC_CCM_CCGR3_IPU1_IPU_DI0_MASK);
87 imx_enable_hdmi_phy();
88 }
89
90 static struct display_info_t preset_hdmi_1024X768 = {
91 .bus = -1,
92 .addr = 0,
93 .pixfmt = IPU_PIX_FMT_RGB24,
94 .enable = cm_fx6_enable_hdmi,
95 .mode = {
96 .name = "HDMI",
97 .refresh = 60,
98 .xres = 1024,
99 .yres = 768,
100 .pixclock = 40385,
101 .left_margin = 220,
102 .right_margin = 40,
103 .upper_margin = 21,
104 .lower_margin = 7,
105 .hsync_len = 60,
106 .vsync_len = 10,
107 .sync = FB_SYNC_EXT,
108 .vmode = FB_VMODE_NONINTERLACED,
109 }
110 };
111
cm_fx6_setup_display(void)112 static void cm_fx6_setup_display(void)
113 {
114 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
115
116 enable_ipu_clock();
117 clrbits_le32(&iomuxc_regs->gpr[3], MXC_CCM_CCGR3_IPU1_IPU_DI0_MASK);
118 }
119
board_video_skip(void)120 int board_video_skip(void)
121 {
122 int ret;
123 struct display_info_t *preset;
124 char const *panel = env_get("displaytype");
125
126 if (!panel) /* Also accept panel for backward compatibility */
127 panel = env_get("panel");
128
129 if (!panel)
130 return -ENOENT;
131
132 if (!strcmp(panel, "HDMI"))
133 preset = &preset_hdmi_1024X768;
134 else
135 return -EINVAL;
136
137 ret = ipuv3_fb_init(&preset->mode, 0, preset->pixfmt);
138 if (ret) {
139 printf("Can't init display %s: %d\n", preset->mode.name, ret);
140 return ret;
141 }
142
143 preset->enable(preset);
144 printf("Display: %s (%ux%u)\n", preset->mode.name, preset->mode.xres,
145 preset->mode.yres);
146
147 return 0;
148 }
149 #else
cm_fx6_setup_display(void)150 static inline void cm_fx6_setup_display(void) {}
151 #endif /* CONFIG_VIDEO_IPUV3 */
152
ipu_displays_init(void)153 int ipu_displays_init(void)
154 {
155 return board_video_skip();
156 }
157
158 #ifdef CONFIG_DWC_AHSATA
159 static int cm_fx6_issd_gpios[] = {
160 /* The order of the GPIOs in the array is important! */
161 CM_FX6_SATA_LDO_EN,
162 CM_FX6_SATA_PHY_SLP,
163 CM_FX6_SATA_NRSTDLY,
164 CM_FX6_SATA_PWREN,
165 CM_FX6_SATA_NSTANDBY1,
166 CM_FX6_SATA_NSTANDBY2,
167 };
168
cm_fx6_sata_power(int on)169 static void cm_fx6_sata_power(int on)
170 {
171 int i;
172
173 if (!on) { /* tell the iSSD that the power will be removed */
174 gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 1);
175 mdelay(10);
176 }
177
178 for (i = 0; i < ARRAY_SIZE(cm_fx6_issd_gpios); i++) {
179 gpio_direction_output(cm_fx6_issd_gpios[i], on);
180 udelay(100);
181 }
182
183 if (!on) /* for compatibility lower the power loss interrupt */
184 gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0);
185 }
186
187 static iomux_v3_cfg_t const sata_pads[] = {
188 /* SATA PWR */
189 IOMUX_PADS(PAD_ENET_TX_EN__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL)),
190 IOMUX_PADS(PAD_EIM_A22__GPIO2_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL)),
191 IOMUX_PADS(PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL)),
192 IOMUX_PADS(PAD_EIM_A25__GPIO5_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)),
193 /* SATA CTRL */
194 IOMUX_PADS(PAD_ENET_TXD0__GPIO1_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL)),
195 IOMUX_PADS(PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL)),
196 IOMUX_PADS(PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL)),
197 IOMUX_PADS(PAD_EIM_A23__GPIO6_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL)),
198 IOMUX_PADS(PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
199 };
200
cm_fx6_setup_issd(void)201 static int cm_fx6_setup_issd(void)
202 {
203 int ret, i;
204
205 SETUP_IOMUX_PADS(sata_pads);
206
207 for (i = 0; i < ARRAY_SIZE(cm_fx6_issd_gpios); i++) {
208 ret = gpio_request(cm_fx6_issd_gpios[i], "sata");
209 if (ret)
210 return ret;
211 }
212
213 ret = gpio_request(CM_FX6_SATA_PWLOSS_INT, "sata_pwloss_int");
214 if (ret)
215 return ret;
216
217 return 0;
218 }
219
220 #define CM_FX6_SATA_INIT_RETRIES 10
221
222 #else
cm_fx6_setup_issd(void)223 static int cm_fx6_setup_issd(void) { return 0; }
224 #endif
225
226 #ifdef CONFIG_SYS_I2C_MXC
227 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
228 PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
229 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
230
231 I2C_PADS(i2c0_pads,
232 PAD_EIM_D21__I2C1_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL),
233 PAD_EIM_D21__GPIO3_IO21 | MUX_PAD_CTRL(I2C_PAD_CTRL),
234 IMX_GPIO_NR(3, 21),
235 PAD_EIM_D28__I2C1_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL),
236 PAD_EIM_D28__GPIO3_IO28 | MUX_PAD_CTRL(I2C_PAD_CTRL),
237 IMX_GPIO_NR(3, 28));
238
239 I2C_PADS(i2c1_pads,
240 PAD_KEY_COL3__I2C2_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL),
241 PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(I2C_PAD_CTRL),
242 IMX_GPIO_NR(4, 12),
243 PAD_KEY_ROW3__I2C2_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL),
244 PAD_KEY_ROW3__GPIO4_IO13 | MUX_PAD_CTRL(I2C_PAD_CTRL),
245 IMX_GPIO_NR(4, 13));
246
247 I2C_PADS(i2c2_pads,
248 PAD_GPIO_3__I2C3_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL),
249 PAD_GPIO_3__GPIO1_IO03 | MUX_PAD_CTRL(I2C_PAD_CTRL),
250 IMX_GPIO_NR(1, 3),
251 PAD_GPIO_6__I2C3_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL),
252 PAD_GPIO_6__GPIO1_IO06 | MUX_PAD_CTRL(I2C_PAD_CTRL),
253 IMX_GPIO_NR(1, 6));
254
255
cm_fx6_setup_one_i2c(int busnum,struct i2c_pads_info * pads)256 static int cm_fx6_setup_one_i2c(int busnum, struct i2c_pads_info *pads)
257 {
258 int ret;
259
260 ret = setup_i2c(busnum, CONFIG_SYS_I2C_SPEED, 0x7f, pads);
261 if (ret)
262 printf("Warning: I2C%d setup failed: %d\n", busnum, ret);
263
264 return ret;
265 }
266
cm_fx6_setup_i2c(void)267 static int cm_fx6_setup_i2c(void)
268 {
269 int ret = 0, err;
270
271 /* i2c<x>_pads are wierd macro variables; we can't use an array */
272 err = cm_fx6_setup_one_i2c(0, I2C_PADS_INFO(i2c0_pads));
273 if (err)
274 ret = err;
275 err = cm_fx6_setup_one_i2c(1, I2C_PADS_INFO(i2c1_pads));
276 if (err)
277 ret = err;
278 err = cm_fx6_setup_one_i2c(2, I2C_PADS_INFO(i2c2_pads));
279 if (err)
280 ret = err;
281
282 return ret;
283 }
284 #else
cm_fx6_setup_i2c(void)285 static int cm_fx6_setup_i2c(void) { return 0; }
286 #endif
287
288 #ifdef CONFIG_USB_EHCI_MX6
289 #define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \
290 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
291 PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
292 #define MX6_USBNC_BASEADDR 0x2184800
293 #define USBNC_USB_H1_PWR_POL (1 << 9)
294
cm_fx6_setup_usb_host(void)295 static int cm_fx6_setup_usb_host(void)
296 {
297 int err;
298
299 err = gpio_request(CM_FX6_USB_HUB_RST, "usb hub rst");
300 if (err)
301 return err;
302
303 SETUP_IOMUX_PAD(PAD_GPIO_0__USB_H1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL));
304 SETUP_IOMUX_PAD(PAD_SD3_RST__GPIO7_IO08 | MUX_PAD_CTRL(NO_PAD_CTRL));
305
306 return 0;
307 }
308
cm_fx6_setup_usb_otg(void)309 static int cm_fx6_setup_usb_otg(void)
310 {
311 int err;
312 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
313
314 err = gpio_request(SB_FX6_USB_OTG_PWR, "usb-pwr");
315 if (err) {
316 printf("USB OTG pwr gpio request failed: %d\n", err);
317 return err;
318 }
319
320 SETUP_IOMUX_PAD(PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL));
321 SETUP_IOMUX_PAD(PAD_ENET_RX_ER__USB_OTG_ID |
322 MUX_PAD_CTRL(WEAK_PULLDOWN));
323 clrbits_le32(&iomux->gpr[1], IOMUXC_GPR1_OTG_ID_MASK);
324 /* disable ext. charger detect, or it'll affect signal quality at dp. */
325 return gpio_direction_output(SB_FX6_USB_OTG_PWR, 0);
326 }
327
board_usb_phy_mode(int port)328 int board_usb_phy_mode(int port)
329 {
330 return USB_INIT_HOST;
331 }
332
board_ehci_hcd_init(int port)333 int board_ehci_hcd_init(int port)
334 {
335 int ret;
336 u32 *usbnc_usb_uh1_ctrl = (u32 *)(MX6_USBNC_BASEADDR + 4);
337
338 /* Only 1 host controller in use. port 0 is OTG & needs no attention */
339 if (port != 1)
340 return 0;
341
342 /* Set PWR polarity to match power switch's enable polarity */
343 setbits_le32(usbnc_usb_uh1_ctrl, USBNC_USB_H1_PWR_POL);
344 ret = gpio_direction_output(CM_FX6_USB_HUB_RST, 0);
345 if (ret)
346 return ret;
347
348 udelay(10);
349 ret = gpio_direction_output(CM_FX6_USB_HUB_RST, 1);
350 if (ret)
351 return ret;
352
353 mdelay(1);
354
355 return 0;
356 }
357
board_ehci_power(int port,int on)358 int board_ehci_power(int port, int on)
359 {
360 if (port == 0)
361 return gpio_direction_output(SB_FX6_USB_OTG_PWR, on);
362
363 return 0;
364 }
365 #else
cm_fx6_setup_usb_otg(void)366 static int cm_fx6_setup_usb_otg(void) { return 0; }
cm_fx6_setup_usb_host(void)367 static int cm_fx6_setup_usb_host(void) { return 0; }
368 #endif
369
370 #ifdef CONFIG_FEC_MXC
371 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
372 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
373
mx6_rgmii_rework(struct phy_device * phydev)374 static int mx6_rgmii_rework(struct phy_device *phydev)
375 {
376 unsigned short val;
377
378 /* Ar8031 phy SmartEEE feature cause link status generates glitch,
379 * which cause ethernet link down/up issue, so disable SmartEEE
380 */
381 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x3);
382 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x805d);
383 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4003);
384 val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
385 val &= ~(0x1 << 8);
386 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
387
388 /* To enable AR8031 ouput a 125MHz clk from CLK_25M */
389 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
390 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
391 phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
392
393 val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
394 val &= 0xffe3;
395 val |= 0x18;
396 phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
397
398 /* introduce tx clock delay */
399 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
400 val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
401 val |= 0x0100;
402 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
403
404 return 0;
405 }
406
board_phy_config(struct phy_device * phydev)407 int board_phy_config(struct phy_device *phydev)
408 {
409 mx6_rgmii_rework(phydev);
410
411 if (phydev->drv->config)
412 return phydev->drv->config(phydev);
413
414 return 0;
415 }
416
417 static iomux_v3_cfg_t const enet_pads[] = {
418 IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
419 IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
420 IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
421 IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
422 IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
423 IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
424 IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
425 IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
426 IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
427 IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
428 IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
429 IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
430 IOMUX_PADS(PAD_GPIO_0__CCM_CLKO1 | MUX_PAD_CTRL(NO_PAD_CTRL)),
431 IOMUX_PADS(PAD_GPIO_3__CCM_CLKO2 | MUX_PAD_CTRL(NO_PAD_CTRL)),
432 IOMUX_PADS(PAD_SD4_DAT0__GPIO2_IO08 | MUX_PAD_CTRL(0x84)),
433 IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK |
434 MUX_PAD_CTRL(ENET_PAD_CTRL)),
435 IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL |
436 MUX_PAD_CTRL(ENET_PAD_CTRL)),
437 IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL |
438 MUX_PAD_CTRL(ENET_PAD_CTRL)),
439 };
440
handle_mac_address(char * env_var,uint eeprom_bus)441 static int handle_mac_address(char *env_var, uint eeprom_bus)
442 {
443 unsigned char enetaddr[6];
444 int rc;
445
446 rc = eth_env_get_enetaddr(env_var, enetaddr);
447 if (rc)
448 return 0;
449
450 rc = cl_eeprom_read_mac_addr(enetaddr, eeprom_bus);
451 if (rc)
452 return rc;
453
454 if (!is_valid_ethaddr(enetaddr))
455 return -1;
456
457 return eth_env_set_enetaddr(env_var, enetaddr);
458 }
459
460 #define SB_FX6_I2C_EEPROM_BUS 0
461 #define NO_MAC_ADDR "No MAC address found for %s\n"
board_eth_init(struct bd_info * bis)462 int board_eth_init(struct bd_info *bis)
463 {
464 int err;
465
466 if (handle_mac_address("ethaddr", CONFIG_SYS_I2C_EEPROM_BUS))
467 printf(NO_MAC_ADDR, "primary NIC");
468
469 if (handle_mac_address("eth1addr", SB_FX6_I2C_EEPROM_BUS))
470 printf(NO_MAC_ADDR, "secondary NIC");
471
472 SETUP_IOMUX_PADS(enet_pads);
473 /* phy reset */
474 err = gpio_request(CM_FX6_ENET_NRST, "enet_nrst");
475 if (err)
476 printf("Etnernet NRST gpio request failed: %d\n", err);
477 gpio_direction_output(CM_FX6_ENET_NRST, 0);
478 udelay(500);
479 gpio_set_value(CM_FX6_ENET_NRST, 1);
480 enable_enet_clk(1);
481 return cpu_eth_init(bis);
482 }
483 #endif
484
485 #ifdef CONFIG_NAND_MXS
486 static iomux_v3_cfg_t const nand_pads[] = {
487 IOMUX_PADS(PAD_NANDF_CLE__NAND_CLE | MUX_PAD_CTRL(NO_PAD_CTRL)),
488 IOMUX_PADS(PAD_NANDF_ALE__NAND_ALE | MUX_PAD_CTRL(NO_PAD_CTRL)),
489 IOMUX_PADS(PAD_NANDF_CS0__NAND_CE0_B | MUX_PAD_CTRL(NO_PAD_CTRL)),
490 IOMUX_PADS(PAD_NANDF_RB0__NAND_READY_B | MUX_PAD_CTRL(NO_PAD_CTRL)),
491 IOMUX_PADS(PAD_NANDF_D0__NAND_DATA00 | MUX_PAD_CTRL(NO_PAD_CTRL)),
492 IOMUX_PADS(PAD_NANDF_D1__NAND_DATA01 | MUX_PAD_CTRL(NO_PAD_CTRL)),
493 IOMUX_PADS(PAD_NANDF_D2__NAND_DATA02 | MUX_PAD_CTRL(NO_PAD_CTRL)),
494 IOMUX_PADS(PAD_NANDF_D3__NAND_DATA03 | MUX_PAD_CTRL(NO_PAD_CTRL)),
495 IOMUX_PADS(PAD_NANDF_D4__NAND_DATA04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
496 IOMUX_PADS(PAD_NANDF_D5__NAND_DATA05 | MUX_PAD_CTRL(NO_PAD_CTRL)),
497 IOMUX_PADS(PAD_NANDF_D6__NAND_DATA06 | MUX_PAD_CTRL(NO_PAD_CTRL)),
498 IOMUX_PADS(PAD_NANDF_D7__NAND_DATA07 | MUX_PAD_CTRL(NO_PAD_CTRL)),
499 IOMUX_PADS(PAD_SD4_CMD__NAND_RE_B | MUX_PAD_CTRL(NO_PAD_CTRL)),
500 IOMUX_PADS(PAD_SD4_CLK__NAND_WE_B | MUX_PAD_CTRL(NO_PAD_CTRL)),
501 };
502
cm_fx6_setup_gpmi_nand(void)503 static void cm_fx6_setup_gpmi_nand(void)
504 {
505 SETUP_IOMUX_PADS(nand_pads);
506 /* Enable clock roots */
507 enable_usdhc_clk(1, 3);
508 enable_usdhc_clk(1, 4);
509
510 setup_gpmi_io_clk(MXC_CCM_CS2CDR_ENFC_CLK_PODF(0xf) |
511 MXC_CCM_CS2CDR_ENFC_CLK_PRED(1) |
512 MXC_CCM_CS2CDR_ENFC_CLK_SEL(0));
513 }
514 #else
cm_fx6_setup_gpmi_nand(void)515 static void cm_fx6_setup_gpmi_nand(void) {}
516 #endif
517
518 #ifdef CONFIG_MXC_SPI
cm_fx6_setup_ecspi(void)519 int cm_fx6_setup_ecspi(void)
520 {
521 cm_fx6_set_ecspi_iomux();
522 return gpio_request(CM_FX6_ECSPI_BUS0_CS0, "ecspi_bus0_cs0");
523 }
524 #else
cm_fx6_setup_ecspi(void)525 int cm_fx6_setup_ecspi(void) { return 0; }
526 #endif
527
528 #ifdef CONFIG_OF_BOARD_SETUP
529 #define USDHC3_PATH "/soc/aips-bus@02100000/usdhc@02198000/"
530
531 static const struct node_info nodes[] = {
532 /*
533 * Both entries target the same flash chip. The st,m25p compatible
534 * is used in the vendor device trees, while upstream uses (the
535 * documented) jedec,spi-nor compatible.
536 */
537 { "st,m25p", MTD_DEV_TYPE_NOR, },
538 { "jedec,spi-nor", MTD_DEV_TYPE_NOR, },
539 };
540
ft_board_setup(void * blob,struct bd_info * bd)541 int ft_board_setup(void *blob, struct bd_info *bd)
542 {
543 u32 baseboard_rev;
544 int nodeoffset;
545 uint8_t enetaddr[6];
546 char baseboard_name[16];
547 int err;
548
549 fdt_shrink_to_minimum(blob, 0); /* Make room for new properties */
550
551 /* MAC addr */
552 if (eth_env_get_enetaddr("ethaddr", enetaddr)) {
553 fdt_find_and_setprop(blob,
554 "/soc/aips-bus@02100000/ethernet@02188000",
555 "local-mac-address", enetaddr, 6, 1);
556 }
557
558 if (eth_env_get_enetaddr("eth1addr", enetaddr)) {
559 fdt_find_and_setprop(blob, "/eth@pcie", "local-mac-address",
560 enetaddr, 6, 1);
561 }
562
563 fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
564
565 baseboard_rev = cl_eeprom_get_board_rev(0);
566 err = cl_eeprom_get_product_name((uchar *)baseboard_name, 0);
567 if (err || baseboard_rev == 0)
568 return 0; /* Assume not an early revision SB-FX6m baseboard */
569
570 if (!strncmp("SB-FX6m", baseboard_name, 7) && baseboard_rev <= 120) {
571 nodeoffset = fdt_path_offset(blob, USDHC3_PATH);
572 fdt_delprop(blob, nodeoffset, "cd-gpios");
573 fdt_find_and_setprop(blob, USDHC3_PATH, "broken-cd",
574 NULL, 0, 1);
575 fdt_find_and_setprop(blob, USDHC3_PATH, "keep-power-in-suspend",
576 NULL, 0, 1);
577 }
578
579 return 0;
580 }
581 #endif
582
board_init(void)583 int board_init(void)
584 {
585 int ret;
586
587 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
588 cm_fx6_setup_gpmi_nand();
589
590 ret = cm_fx6_setup_ecspi();
591 if (ret)
592 printf("Warning: ECSPI setup failed: %d\n", ret);
593
594 ret = cm_fx6_setup_usb_otg();
595 if (ret)
596 printf("Warning: USB OTG setup failed: %d\n", ret);
597
598 ret = cm_fx6_setup_usb_host();
599 if (ret)
600 printf("Warning: USB host setup failed: %d\n", ret);
601
602 /*
603 * cm-fx6 may have iSSD not assembled and in this case it has
604 * bypasses for a (m)SATA socket on the baseboard. The socketed
605 * device is not controlled by those GPIOs. So just print a warning
606 * if the setup fails.
607 */
608 ret = cm_fx6_setup_issd();
609 if (ret)
610 printf("Warning: iSSD setup failed: %d\n", ret);
611
612 /* Warn on failure but do not abort boot */
613 ret = cm_fx6_setup_i2c();
614 if (ret)
615 printf("Warning: I2C setup failed: %d\n", ret);
616
617 cm_fx6_setup_display();
618
619 /* This should be done in the MMC driver when MX6 has a clock driver */
620 #ifdef CONFIG_FSL_ESDHC_IMX
621 if (IS_ENABLED(CONFIG_BLK)) {
622 int i;
623
624 cm_fx6_set_usdhc_iomux();
625 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++)
626 enable_usdhc_clk(1, i);
627 }
628 #endif
629
630 return 0;
631 }
632
board_late_init(void)633 int board_late_init(void)
634 {
635 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
636 char baseboard_name[16];
637 int err;
638
639 if (is_mx6dq())
640 env_set("board_rev", "MX6Q");
641 else if (is_mx6dl())
642 env_set("board_rev", "MX6DL");
643
644 err = cl_eeprom_get_product_name((uchar *)baseboard_name, 0);
645 if (err)
646 return 0;
647
648 if (!strncmp("SB-FX6m", baseboard_name, 7))
649 env_set("board_name", "Utilite");
650 #endif
651 return 0;
652 }
653
checkboard(void)654 int checkboard(void)
655 {
656 puts("Board: CM-FX6\n");
657 return 0;
658 }
659
misc_init_r(void)660 int misc_init_r(void)
661 {
662 cl_print_pcb_info();
663
664 return 0;
665 }
666
dram_init_banksize(void)667 int dram_init_banksize(void)
668 {
669 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
670 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
671
672 switch (gd->ram_size) {
673 case 0x10000000: /* DDR_16BIT_256MB */
674 gd->bd->bi_dram[0].size = 0x10000000;
675 gd->bd->bi_dram[1].size = 0;
676 break;
677 case 0x20000000: /* DDR_32BIT_512MB */
678 gd->bd->bi_dram[0].size = 0x20000000;
679 gd->bd->bi_dram[1].size = 0;
680 break;
681 case 0x40000000:
682 if (is_cpu_type(MXC_CPU_MX6SOLO)) { /* DDR_32BIT_1GB */
683 gd->bd->bi_dram[0].size = 0x20000000;
684 gd->bd->bi_dram[1].size = 0x20000000;
685 } else { /* DDR_64BIT_1GB */
686 gd->bd->bi_dram[0].size = 0x40000000;
687 gd->bd->bi_dram[1].size = 0;
688 }
689 break;
690 case 0x80000000: /* DDR_64BIT_2GB */
691 gd->bd->bi_dram[0].size = 0x40000000;
692 gd->bd->bi_dram[1].size = 0x40000000;
693 break;
694 case 0xEFF00000: /* DDR_64BIT_4GB */
695 gd->bd->bi_dram[0].size = 0x70000000;
696 gd->bd->bi_dram[1].size = 0x7FF00000;
697 break;
698 }
699
700 return 0;
701 }
702
dram_init(void)703 int dram_init(void)
704 {
705 gd->ram_size = imx_ddr_size();
706 switch (gd->ram_size) {
707 case 0x10000000:
708 case 0x20000000:
709 case 0x40000000:
710 case 0x80000000:
711 break;
712 case 0xF0000000:
713 gd->ram_size -= 0x100000;
714 break;
715 default:
716 printf("ERROR: Unsupported DRAM size 0x%lx\n", gd->ram_size);
717 return -1;
718 }
719
720 return 0;
721 }
722
get_board_rev(void)723 u32 get_board_rev(void)
724 {
725 return cl_eeprom_get_board_rev(CONFIG_SYS_I2C_EEPROM_BUS);
726 }
727
728 static struct mxc_serial_plat cm_fx6_mxc_serial_plat = {
729 .reg = (struct mxc_uart *)UART4_BASE,
730 };
731
732 U_BOOT_DRVINFO(cm_fx6_serial) = {
733 .name = "serial_mxc",
734 .plat = &cm_fx6_mxc_serial_plat,
735 };
736
737 #if CONFIG_IS_ENABLED(AHCI)
sata_imx_probe(struct udevice * dev)738 static int sata_imx_probe(struct udevice *dev)
739 {
740 int i, err;
741
742 /* Make sure this gpio has logical 0 value */
743 gpio_direction_output(CM_FX6_SATA_PWLOSS_INT, 0);
744 udelay(100);
745 cm_fx6_sata_power(1);
746
747 for (i = 0; i < CM_FX6_SATA_INIT_RETRIES; i++) {
748 err = setup_sata();
749 if (err) {
750 printf("SATA setup failed: %d\n", err);
751 return err;
752 }
753
754 udelay(100);
755
756 err = dwc_ahsata_probe(dev);
757 if (!err)
758 break;
759
760 /* There is no device on the SATA port */
761 if (sata_dm_port_status(0, 0) == 0)
762 break;
763
764 /* There's a device, but link not established. Retry */
765 device_remove(dev, DM_REMOVE_NORMAL);
766 }
767
768 return 0;
769 }
770
sata_imx_remove(struct udevice * dev)771 static int sata_imx_remove(struct udevice *dev)
772 {
773 cm_fx6_sata_power(0);
774 mdelay(250);
775
776 return 0;
777 }
778
779 struct ahci_ops sata_imx_ops = {
780 .port_status = dwc_ahsata_port_status,
781 .reset = dwc_ahsata_bus_reset,
782 .scan = dwc_ahsata_scan,
783 };
784
785 static const struct udevice_id sata_imx_ids[] = {
786 { .compatible = "fsl,imx6q-ahci" },
787 { }
788 };
789
790 U_BOOT_DRIVER(sata_imx) = {
791 .name = "dwc_ahci",
792 .id = UCLASS_AHCI,
793 .of_match = sata_imx_ids,
794 .ops = &sata_imx_ops,
795 .probe = sata_imx_probe,
796 .remove = sata_imx_remove, /* reset bus to stop it */
797 };
798 #endif /* AHCI */
799