blob: e6021a456620076ebb2fb4bd810e2662dfdaba4f [file] [log] [blame]
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +08001// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright 2018 NXP
4 * Copyright 2020 Linaro
5 */
6
7#include <common.h>
Sughosh Ganuccb36462022-04-15 11:29:34 +05308#include <efi.h>
9#include <efi_loader.h>
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +080010#include <env.h>
Ying-Chun Liu (PaulLiu)a96ed8d2021-11-05 17:13:25 +080011#include <extension_board.h>
Ying-Chun Liu (PaulLiu)20dc0ba2021-08-24 17:44:19 +080012#include <hang.h>
Ying-Chun Liu (PaulLiu)a96ed8d2021-11-05 17:13:25 +080013#include <i2c.h>
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +080014#include <init.h>
15#include <miiphy.h>
16#include <netdev.h>
Fabio Estevamf2acfc72022-04-12 13:05:37 -030017#include <i2c_eeprom.h>
18#include <i2c.h>
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +080019
20#include <asm/arch/clock.h>
Ying-Chun Liu (PaulLiu)a96ed8d2021-11-05 17:13:25 +080021#include <asm/arch/imx8mm_pins.h>
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +080022#include <asm/arch/sys_proto.h>
Ying-Chun Liu (PaulLiu)a96ed8d2021-11-05 17:13:25 +080023#include <asm/global_data.h>
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +080024#include <asm/io.h>
Ying-Chun Liu (PaulLiu)a96ed8d2021-11-05 17:13:25 +080025#include <asm/mach-imx/gpio.h>
26#include <asm/mach-imx/mxc_i2c.h>
27#include <asm/sections.h>
Sughosh Ganuccb36462022-04-15 11:29:34 +053028#include <linux/kernel.h>
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +080029
Ying-Chun Liu (PaulLiu)20dc0ba2021-08-24 17:44:19 +080030#include "ddr/ddr.h"
31
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +080032DECLARE_GLOBAL_DATA_PTR;
33
Sughosh Ganuccb36462022-04-15 11:29:34 +053034#if CONFIG_IS_ENABLED(EFI_HAVE_CAPSULE_SUPPORT)
35struct efi_fw_image fw_images[] = {
36#if defined(CONFIG_TARGET_IMX8MM_CL_IOT_GATE)
37 {
38 .image_type_id = IMX8MM_CL_IOT_GATE_FIT_IMAGE_GUID,
39 .fw_name = u"IMX8MM-CL-IOT-GATE-FIT",
40 .image_index = 1,
41 },
42#elif defined(CONFIG_TARGET_IMX8MM_CL_IOT_GATE_OPTEE)
43 {
44 .image_type_id = IMX8MM_CL_IOT_GATE_OPTEE_FIT_IMAGE_GUID,
45 .fw_name = u"IMX8MM-CL-IOT-GATE-FIT",
46 .image_index = 1,
47 },
48#endif
49};
50
51struct efi_capsule_update_info update_info = {
52 .dfu_string = "mmc 2=flash-bin raw 0x42 0x1D00 mmcpart 1",
53 .images = fw_images,
54};
55
56u8 num_image_type_guids = ARRAY_SIZE(fw_images);
57#endif /* EFI_HAVE_CAPSULE_SUPPORT */
58
Ying-Chun Liu (PaulLiu)20dc0ba2021-08-24 17:44:19 +080059int board_phys_sdram_size(phys_size_t *size)
60{
61 struct lpddr4_tcm_desc *lpddr4_tcm_desc =
62 (struct lpddr4_tcm_desc *)TCM_DATA_CFG;
63
64 switch (lpddr4_tcm_desc->size) {
65 case 4096:
66 case 2048:
67 case 1024:
68 *size = (1L << 20) * lpddr4_tcm_desc->size;
69 break;
70 default:
71 printf("%s: DRAM size %uM is not supported\n",
72 __func__,
73 lpddr4_tcm_desc->size);
74 hang();
75 break;
76 };
77
78 return 0;
79}
80
Ying-Chun Liu (PaulLiu)a96ed8d2021-11-05 17:13:25 +080081/* IOT_GATE-iMX8 extension boards ID */
82typedef enum {
83 IOT_GATE_EXT_EMPTY, /* No extension */
84 IOT_GATE_EXT_CAN, /* CAN bus */
85 IOT_GATE_EXT_IED, /* Bridge */
86 IOT_GATE_EXT_POE, /* POE */
87 IOT_GATE_EXT_POEV2, /* POEv2 */
88} iot_gate_imx8_ext;
89
90typedef enum {
91 IOT_GATE_IMX8_CARD_ID_EMPTY = 0, /* card id - uninhabited */
92 IOT_GATE_IMX8_CARD_ID_DI4O4 = 1, /* Card ID - IED-DI4O4 */
93 IOT_GATE_IMX8_CARD_ID_RS_485 = 2, /* Card ID - IED-RS485 */
94 IOT_GATE_IMX8_CARD_ID_TPM = 3, /* Card ID - IED-TPM */
95 IOT_GATE_IMX8_CARD_ID_CAN = 4, /* Card ID - IED-CAN */
96 IOT_GATE_IMX8_CARD_ID_CL420 = 5, /* Card ID - IED-CL420 */
97 IOT_GATE_IMX8_CARD_ID_RS_232 = 6, /* Card ID - IED-RS232 */
98} iot_gate_imx8_ied_ext;
99
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +0800100static int setup_fec(void)
101{
102 if (IS_ENABLED(CONFIG_FEC_MXC)) {
103 struct iomuxc_gpr_base_regs *gpr =
104 (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
105
106 /* Use 125M anatop REF_CLK1 for ENET1, not from external */
107 clrsetbits_le32(&gpr->gpr[1], 0x2000, 0);
108 }
109
110 return 0;
111}
112
113int board_phy_config(struct phy_device *phydev)
114{
115 if (IS_ENABLED(CONFIG_FEC_MXC)) {
116 /* enable rgmii rxc skew and phy mode select to RGMII copper */
117 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
118 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
119
120 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
121 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
122 phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
123 phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
124
125 if (phydev->drv->config)
126 phydev->drv->config(phydev);
127 }
128 return 0;
129}
130
131int board_init(void)
132{
133 if (IS_ENABLED(CONFIG_FEC_MXC))
134 setup_fec();
135
136 return 0;
137}
138
139int board_mmc_get_env_dev(int devno)
140{
141 return devno;
142}
143
Ying-Chun Liu (PaulLiu)a96ed8d2021-11-05 17:13:25 +0800144#define IOT_GATE_IMX8_EXT_I2C 3 /* I2C ID of the extension board */
145#define IOT_GATE_IMX8_EXT_I2C_ADDR_EEPROM 0x54 /* I2C address of the EEPROM */
146
147/* I2C address of the EEPROM in the POE extension */
148#define IOT_GATE_IMX8_EXT_I2C_ADDR_EEPROM_POE 0x50
149#define IOT_GATE_IMX8_EXT_I2C_ADDR_EEPROM_POEV2 0x51
150#define IOT_GATE_IMX8_EXT_I2C_ADDR_GPIO 0x22 /* I2C address of the GPIO
151 extender */
152
153static int iot_gate_imx8_ext_id = IOT_GATE_EXT_EMPTY; /* Extension board ID */
154static int iot_gate_imx8_ext_ied_id [3] = {
155 IOT_GATE_IMX8_CARD_ID_EMPTY,
156 IOT_GATE_IMX8_CARD_ID_EMPTY,
157 IOT_GATE_IMX8_CARD_ID_EMPTY };
158
159/*
160 * iot_gate_imx8_detect_ext() - extended board detection
161 * The detection is done according to the detected I2C devices.
162 */
163static void iot_gate_imx8_detect_ext(void)
164{
165 int ret;
166 struct udevice *i2c_bus, *i2c_dev;
167
168 ret = uclass_get_device_by_seq(UCLASS_I2C, IOT_GATE_IMX8_EXT_I2C,
169 &i2c_bus);
170 if (ret) {
171 printf("%s: Failed getting i2c device\n", __func__);
172 return;
173 }
174
175 ret = dm_i2c_probe(i2c_bus, IOT_GATE_IMX8_EXT_I2C_ADDR_EEPROM_POE, 0,
176 &i2c_dev);
177 if (!ret) {
178 iot_gate_imx8_ext_id = IOT_GATE_EXT_POE;
179 return;
180 }
181
182 ret = dm_i2c_probe(i2c_bus, IOT_GATE_IMX8_EXT_I2C_ADDR_EEPROM_POEV2, 0,
183 &i2c_dev);
184 if (!ret) {
185 iot_gate_imx8_ext_id = IOT_GATE_EXT_POEV2;
186 return;
187 }
188
189 ret = dm_i2c_probe(i2c_bus, IOT_GATE_IMX8_EXT_I2C_ADDR_EEPROM, 0,
190 &i2c_dev);
191 if (ret){
192 iot_gate_imx8_ext_id = IOT_GATE_EXT_EMPTY;
193 return;
194 }
195 /* Only the bridge extension includes the GPIO extender */
196 ret = dm_i2c_probe(i2c_bus, IOT_GATE_IMX8_EXT_I2C_ADDR_GPIO, 0,
197 &i2c_dev);
198 if (ret) /* GPIO extender not detected */
199 iot_gate_imx8_ext_id = IOT_GATE_EXT_CAN;
200 else /* GPIO extender detected */
201 iot_gate_imx8_ext_id = IOT_GATE_EXT_IED;
202}
203
204static iomux_v3_cfg_t const iot_gate_imx8_ext_ied_pads[] = {
205 IMX8MM_PAD_NAND_ALE_GPIO3_IO0 | MUX_PAD_CTRL(PAD_CTL_PE),
206 IMX8MM_PAD_NAND_CE0_B_GPIO3_IO1 | MUX_PAD_CTRL(PAD_CTL_PE),
207 IMX8MM_PAD_NAND_DATA00_GPIO3_IO6 | MUX_PAD_CTRL(PAD_CTL_PE),
208 IMX8MM_PAD_NAND_DATA01_GPIO3_IO7 | MUX_PAD_CTRL(PAD_CTL_PE),
209 IMX8MM_PAD_NAND_DATA02_GPIO3_IO8 | MUX_PAD_CTRL(PAD_CTL_PE),
210 IMX8MM_PAD_NAND_DATA03_GPIO3_IO9 | MUX_PAD_CTRL(PAD_CTL_PE),
211};
212
213static iomux_v3_cfg_t const iot_gate_imx8_ext_poev2_pads[] = {
214 IMX8MM_PAD_SAI3_TXD_GPIO5_IO1 | MUX_PAD_CTRL(PAD_CTL_PE |
215 PAD_CTL_PUE),
216};
217
218/* Extension board bridge GPIOs */
219#define IOT_GATE_IMX8_GPIO_EXT_IED_I0 IMX_GPIO_NR(3, 0) /* IN 0 */
220#define IOT_GATE_IMX8_GPIO_EXT_IED_I1 IMX_GPIO_NR(3, 1) /* IN 1 */
221#define IOT_GATE_IMX8_GPIO_EXT_IED_I2 IMX_GPIO_NR(3, 6) /* IN 2 */
222#define IOT_GATE_IMX8_GPIO_EXT_IED_I3 IMX_GPIO_NR(3, 7) /* IN 3 */
223#define IOT_GATE_IMX8_GPIO_EXT_IED_O0 IMX_GPIO_NR(3, 8) /* OUT 0 */
224#define IOT_GATE_IMX8_GPIO_EXT_IED_O1 IMX_GPIO_NR(3, 9) /* OUT 1 */
225#define IOT_GATE_IMX8_GPIO_EXT_IED_O2 IMX_GPIO_NR(6, 9) /* OUT 2 */
226#define IOT_GATE_IMX8_GPIO_EXT_IED_O3 IMX_GPIO_NR(6, 10)/* OUT 3 */
227
228/* Extension board POE GPIOs */
229#define IOT_GATE_IMX8_GPIO_EXT_POE_MUX IMX_GPIO_NR(5, 1)/* USB_MUX */
230
231/*
232 * iot_gate_imx8_update_pinmux() - update the pinmux
233 * Update the pinmux according to the detected extended board.
234 */
235static void iot_gate_imx8_update_pinmux(void)
236{
237 if (iot_gate_imx8_ext_id == IOT_GATE_EXT_POEV2) {
238 imx_iomux_v3_setup_multiple_pads(iot_gate_imx8_ext_poev2_pads,
239 ARRAY_SIZE(iot_gate_imx8_ext_poev2_pads));
240 gpio_request(IOT_GATE_IMX8_GPIO_EXT_POE_MUX, "poev2_usb-mux");
241 /* Update USB MUX state */
242 gpio_direction_output(IOT_GATE_IMX8_GPIO_EXT_POE_MUX, 1);
243
244 return;
245 }
246 if (iot_gate_imx8_ext_id != IOT_GATE_EXT_IED)
247 return;
248
249 imx_iomux_v3_setup_multiple_pads(iot_gate_imx8_ext_ied_pads,
250 ARRAY_SIZE(iot_gate_imx8_ext_ied_pads));
251
252 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_I0, "ied-di4o4_i0");
253 gpio_direction_input(IOT_GATE_IMX8_GPIO_EXT_IED_I0);
254 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_I1, "ied-di4o4_i1");
255 gpio_direction_input(IOT_GATE_IMX8_GPIO_EXT_IED_I1);
256 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_I2, "ied-di4o4_i2");
257 gpio_direction_input(IOT_GATE_IMX8_GPIO_EXT_IED_I2);
258 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_I3, "ied-di4o4_i3");
259 gpio_direction_input(IOT_GATE_IMX8_GPIO_EXT_IED_I3);
260 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_O0, "ied-di4o4_o0");
261 gpio_direction_output(IOT_GATE_IMX8_GPIO_EXT_IED_O0, 0);
262 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_O1, "ied-di4o4_o1");
263 gpio_direction_output(IOT_GATE_IMX8_GPIO_EXT_IED_O1, 0);
264 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_O2, "ied-di4o4_o2");
265 gpio_direction_output(IOT_GATE_IMX8_GPIO_EXT_IED_O2, 0);
266 gpio_request(IOT_GATE_IMX8_GPIO_EXT_IED_O3, "ied-di4o4_o3");
267 gpio_direction_output(IOT_GATE_IMX8_GPIO_EXT_IED_O3, 0);
268}
269
270#define IOT_GATE_IMX8_GPIO_S0B0 IMX_GPIO_NR(6, 0) /* Slot ID slot 0 bit 0 */
271#define IOT_GATE_IMX8_GPIO_S0B1 IMX_GPIO_NR(6, 1) /* Slot ID slot 0 bit 1 */
272#define IOT_GATE_IMX8_GPIO_S0B2 IMX_GPIO_NR(6, 2) /* Slot ID slot 0 bit 2 */
273#define IOT_GATE_IMX8_GPIO_S1B0 IMX_GPIO_NR(6, 3) /* Slot ID slot 1 bit 0 */
274#define IOT_GATE_IMX8_GPIO_S1B1 IMX_GPIO_NR(6, 4) /* Slot ID slot 1 bit 1 */
275#define IOT_GATE_IMX8_GPIO_S1B2 IMX_GPIO_NR(6, 5) /* Slot ID slot 1 bit 2 */
276#define IOT_GATE_IMX8_GPIO_S2B0 IMX_GPIO_NR(6, 6) /* Slot ID slot 2 bit 0 */
277#define IOT_GATE_IMX8_GPIO_S2B1 IMX_GPIO_NR(6, 7) /* Slot ID slot 2 bit 1 */
278#define IOT_GATE_IMX8_GPIO_S2B2 IMX_GPIO_NR(6, 8) /* Slot ID slot 2 bit 2 */
279
280/*
281 * iot_gate_imx8_update_ext_ied()
282 * Update device tree of the extended board IED-BASE.
283 * The device tree is updated according to the detected sub modules.
284 *
285 * Return 0 for success, 1 for failure.
286 */
287static int iot_gate_imx8_update_ext_ied(void)
288{
289 int revision;
290
291 if (iot_gate_imx8_ext_id != IOT_GATE_EXT_IED)
292 return 0;
293
294 /* ID GPIO initializations */
295 if (gpio_request(IOT_GATE_IMX8_GPIO_S0B0, "id_s0b0") ||
296 gpio_request(IOT_GATE_IMX8_GPIO_S0B1, "id_s0b1") ||
297 gpio_request(IOT_GATE_IMX8_GPIO_S0B2, "id_s0b2") ||
298 gpio_request(IOT_GATE_IMX8_GPIO_S1B0, "id_s1b0") ||
299 gpio_request(IOT_GATE_IMX8_GPIO_S1B1, "id_s1b1") ||
300 gpio_request(IOT_GATE_IMX8_GPIO_S1B2, "id_s1b2") ||
301 gpio_request(IOT_GATE_IMX8_GPIO_S2B0, "id_s2b0") ||
302 gpio_request(IOT_GATE_IMX8_GPIO_S2B1, "id_s2b1") ||
303 gpio_request(IOT_GATE_IMX8_GPIO_S2B2, "id_s2b2")) {
304 printf("%s: ID GPIO request failure\n", __func__);
305 return 1;
306 }
307 gpio_direction_input(IOT_GATE_IMX8_GPIO_S0B0);
308 gpio_direction_input(IOT_GATE_IMX8_GPIO_S0B1);
309 gpio_direction_input(IOT_GATE_IMX8_GPIO_S0B2);
310 gpio_direction_input(IOT_GATE_IMX8_GPIO_S1B0);
311 gpio_direction_input(IOT_GATE_IMX8_GPIO_S1B1);
312 gpio_direction_input(IOT_GATE_IMX8_GPIO_S1B2);
313 gpio_direction_input(IOT_GATE_IMX8_GPIO_S2B0);
314 gpio_direction_input(IOT_GATE_IMX8_GPIO_S2B1);
315 gpio_direction_input(IOT_GATE_IMX8_GPIO_S2B2);
316
317 /* Get slot 0 card ID */
318 revision = gpio_get_value(IOT_GATE_IMX8_GPIO_S0B0) |
319 gpio_get_value(IOT_GATE_IMX8_GPIO_S0B1) << 1 |
320 gpio_get_value(IOT_GATE_IMX8_GPIO_S0B2) << 2;
321 iot_gate_imx8_ext_ied_id[0] = revision;
322
323 /* Get slot 1 card ID */
324 revision = gpio_get_value(IOT_GATE_IMX8_GPIO_S1B0) |
325 gpio_get_value(IOT_GATE_IMX8_GPIO_S1B1) << 1 |
326 gpio_get_value(IOT_GATE_IMX8_GPIO_S1B2) << 2;
327 iot_gate_imx8_ext_ied_id[1] = revision;
328
329 /* Get slot 2 card ID */
330 revision = gpio_get_value(IOT_GATE_IMX8_GPIO_S2B0) |
331 gpio_get_value(IOT_GATE_IMX8_GPIO_S2B1) << 1 |
332 gpio_get_value(IOT_GATE_IMX8_GPIO_S2B2) << 2;
333 iot_gate_imx8_ext_ied_id[2] = revision;
334
335 return 0;
336}
337
338int board_fix_fdt(void *rw_fdt_blob)
339{
340 return 0;
341}
342
343int extension_board_scan(struct list_head *extension_list)
344{
345 struct extension *extension = NULL;
346 int i;
347 int ret = 0;
348
349 iot_gate_imx8_detect_ext(); /* Extended board detection */
350
351 switch(iot_gate_imx8_ext_id) {
352 case IOT_GATE_EXT_EMPTY:
353 break;
354 case IOT_GATE_EXT_CAN:
355 extension = calloc(1, sizeof(struct extension));
356 snprintf(extension->name, sizeof(extension->name),
357 "IOT_GATE_EXT_CAN");
358 break;
359 case IOT_GATE_EXT_IED:
360 extension = calloc(1, sizeof(struct extension));
361 snprintf(extension->name, sizeof(extension->name),
362 "IOT_GATE_EXT_IED");
363 snprintf(extension->overlay, sizeof(extension->overlay),
364 "imx8mm-cl-iot-gate-ied.dtbo");
365 break;
366 case IOT_GATE_EXT_POE:
367 extension = calloc(1, sizeof(struct extension));
368 snprintf(extension->name, sizeof(extension->name),
369 "IOT_GATE_EXT_POE");
370 break;
371 case IOT_GATE_EXT_POEV2:
372 extension = calloc(1, sizeof(struct extension));
373 snprintf(extension->name, sizeof(extension->name),
374 "IOT_GATE_EXT_POEV2");
375 break;
376 default:
377 printf("IOT_GATE-iMX8 extension board: unknown\n");
378 break;
379 }
380
381 if (extension) {
382 snprintf(extension->owner, sizeof(extension->owner),
383 "Compulab");
384 list_add_tail(&extension->list, extension_list);
385 ret = 1;
386 } else
387 return ret;
388
389 iot_gate_imx8_update_pinmux();
390
391 iot_gate_imx8_update_ext_ied();
392 for (i=0; i<ARRAY_SIZE(iot_gate_imx8_ext_ied_id); i++) {
393 extension = NULL;
394 switch (iot_gate_imx8_ext_ied_id[i]) {
395 case IOT_GATE_IMX8_CARD_ID_EMPTY:
396 break;
397 case IOT_GATE_IMX8_CARD_ID_RS_485:
398 extension = calloc(1, sizeof(struct extension));
399 snprintf(extension->name, sizeof(extension->name),
400 "IOT_GATE_IMX8_CARD_ID_RS_485");
401 break;
402 case IOT_GATE_IMX8_CARD_ID_RS_232:
403 extension = calloc(1, sizeof(struct extension));
404 snprintf(extension->name, sizeof(extension->name),
405 "IOT_GATE_IMX8_CARD_ID_RS_232");
406 break;
407 case IOT_GATE_IMX8_CARD_ID_CAN:
408 extension = calloc(1, sizeof(struct extension));
409 snprintf(extension->name, sizeof(extension->name),
410 "IOT_GATE_IMX8_CARD_ID_CAN");
411 snprintf(extension->overlay, sizeof(extension->overlay),
412 "imx8mm-cl-iot-gate-ied-can%d.dtbo", i);
413 break;
414 case IOT_GATE_IMX8_CARD_ID_TPM:
415 extension = calloc(1, sizeof(struct extension));
416 snprintf(extension->name, sizeof(extension->name),
417 "IOT_GATE_IMX8_CARD_ID_TPM");
418 snprintf(extension->overlay, sizeof(extension->overlay),
419 "imx8mm-cl-iot-gate-ied-tpm%d.dtbo", i);
420 break;
421 case IOT_GATE_IMX8_CARD_ID_CL420:
422 extension = calloc(1, sizeof(struct extension));
423 snprintf(extension->name, sizeof(extension->name),
424 "IOT_GATE_IMX8_CARD_ID_CL420");
425 snprintf(extension->overlay, sizeof(extension->overlay),
426 "imx8mm-cl-iot-gate-ied-can%d.dtbo", i);
427 break;
428 case IOT_GATE_IMX8_CARD_ID_DI4O4:
429 extension = calloc(1, sizeof(struct extension));
430 snprintf(extension->name, sizeof(extension->name),
431 "IOT_GATE_IMX8_CARD_ID_DI4O4");
432 break;
433 default:
434 printf("%s: invalid slot %d card ID: %d\n",
435 __func__, i, iot_gate_imx8_ext_ied_id[i]);
436 break;
437 }
438 if (extension) {
439 snprintf(extension->owner, sizeof(extension->owner),
440 "Compulab");
441 snprintf(extension->other, sizeof(extension->other),
442 "On slot %d", i);
443 list_add_tail(&extension->list, extension_list);
444 ret = ret + 1;
445 }
446 }
447
448 return ret;
449}
450
Fabio Estevamf2acfc72022-04-12 13:05:37 -0300451static int setup_mac_address(void)
452{
453 unsigned char enetaddr[6];
454 struct udevice *dev;
455 int ret, off;
456
457 ret = eth_env_get_enetaddr("ethaddr", enetaddr);
458 if (ret)
459 return 0;
460
461 off = fdt_path_offset(gd->fdt_blob, "eeprom1");
462 if (off < 0) {
463 printf("No eeprom0 path offset found in DT\n");
464 return off;
465 }
466
467 ret = uclass_get_device_by_of_offset(UCLASS_I2C_EEPROM, off, &dev);
468 if (ret) {
469 printf("%s: Could not find EEPROM\n", __func__);
470 return ret;
471 }
472
473 ret = i2c_set_chip_offset_len(dev, 1);
474 if (ret)
475 return ret;
476
477 ret = i2c_eeprom_read(dev, 4, enetaddr, sizeof(enetaddr));
478 if (ret) {
479 printf("%s: Could not read EEPROM\n", __func__);
480 return ret;
481 }
482
483 ret = is_valid_ethaddr(enetaddr);
484 if (!ret)
485 return -EINVAL;
486
487 ret = eth_env_set_enetaddr("ethaddr", enetaddr);
488 if (ret)
489 return ret;
490
491 return 0;
492}
493
Fabio Estevam938f70f2022-04-12 13:05:38 -0300494static int read_serial_number(void)
495{
496 unsigned char serialnumber[6];
497 unsigned char reversed[6];
498 char serial_string[12];
499 struct udevice *dev;
500 int ret, off, i;
501
502 off = fdt_path_offset(gd->fdt_blob, "eeprom0");
503 if (off < 0) {
504 printf("No eeprom0 path offset found in DT\n");
505 return off;
506 }
507
508 ret = uclass_get_device_by_of_offset(UCLASS_I2C_EEPROM, off, &dev);
509 if (ret) {
510 printf("%s: Could not find EEPROM\n", __func__);
511 return ret;
512 }
513
514 ret = i2c_set_chip_offset_len(dev, 1);
515 if (ret)
516 return ret;
517
518 ret = i2c_eeprom_read(dev, 0x14, serialnumber, sizeof(serialnumber));
519 if (ret) {
520 printf("%s: Could not read EEPROM\n", __func__);
521 return ret;
522 }
523
524 for (i = sizeof(serialnumber) - 1; i >= 0; i--)
525 reversed[i] = serialnumber[sizeof(serialnumber) - 1 - i];
526
527 for (i = 0; i < sizeof(reversed); i++) {
528 serial_string[i * 2] = (reversed[i] >> 4) & 0xf;
529 serial_string[i * 2 + 1] = reversed[i] & 0xf;
530 }
531
532 for (i = 0; i < sizeof(serial_string); i++)
533 serial_string[i] += '0';
534
535 env_set("serial#", serial_string);
536
537 return 0;
538}
539
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +0800540int board_late_init(void)
541{
Fabio Estevamf2acfc72022-04-12 13:05:37 -0300542 int ret;
543
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +0800544 if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) {
545 env_set("board_name", "IOT-GATE-IMX8");
546 env_set("board_rev", "SBC-IOTMX8");
547 }
548
Fabio Estevamf2acfc72022-04-12 13:05:37 -0300549 ret = setup_mac_address();
550 if (ret < 0)
551 printf("Cannot set MAC address from EEPROM\n");
552
Fabio Estevam938f70f2022-04-12 13:05:38 -0300553 ret = read_serial_number();
554 if (ret < 0)
555 printf("Cannot read serial number from EEPROM\n");
556
Ying-Chun Liu (PaulLiu)a97107f2021-04-22 04:50:31 +0800557 return 0;
558}