blob: 4753f9b2c834ba111dd391821d1460c1e1068a1c [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Marek Behún09e16b82017-06-09 19:28:45 +02002/*
3 * Copyright (C) 2017 Marek Behun <marek.behun@nic.cz>
4 * Copyright (C) 2016 Tomas Hlavacek <tomas.hlavacek@nic.cz>
5 *
6 * Derived from the code for
7 * Marvell/db-88f6820-gp by Stefan Roese <sr@denx.de>
Marek Behún09e16b82017-06-09 19:28:45 +02008 */
9
10#include <common.h>
Simon Glass07dc93c2019-08-01 09:46:47 -060011#include <env.h>
Marek Behún09e16b82017-06-09 19:28:45 +020012#include <i2c.h>
Simon Glassa7b51302019-11-14 12:57:46 -070013#include <init.h>
Simon Glass0f2af882020-05-10 11:40:05 -060014#include <log.h>
Marek Behún09e16b82017-06-09 19:28:45 +020015#include <miiphy.h>
Marek Behún91ef59c2021-07-15 19:21:02 +020016#include <mtd.h>
Simon Glass3ba929a2020-10-30 21:38:53 -060017#include <asm/global_data.h>
Marek Behún09e16b82017-06-09 19:28:45 +020018#include <asm/io.h>
19#include <asm/arch/cpu.h>
20#include <asm/arch/soc.h>
21#include <dm/uclass.h>
22#include <fdt_support.h>
23#include <time.h>
Simon Glass4dcacfc2020-05-10 11:40:13 -060024#include <linux/bitops.h>
Simon Glass48b6c6b2019-11-14 12:57:16 -070025#include <u-boot/crc.h>
Marek Behún09e16b82017-06-09 19:28:45 +020026
Chris Packham1a07d212018-05-10 13:28:29 +120027#include "../drivers/ddr/marvell/a38x/ddr3_init.h"
Marek Behún09e16b82017-06-09 19:28:45 +020028#include <../serdes/a38x/high_speed_env_spec.h>
Pali Rohár0387f7f2022-04-08 16:30:12 +020029#include "../turris_atsha_otp.h"
Marek Behún09e16b82017-06-09 19:28:45 +020030
31DECLARE_GLOBAL_DATA_PTR;
32
Marek Behún91ef59c2021-07-15 19:21:02 +020033#define OMNIA_SPI_NOR_PATH "/soc/spi@10600/spi-nor@0"
34
Marek Behúnba53b6b2019-05-02 16:53:30 +020035#define OMNIA_I2C_BUS_NAME "i2c@11000->i2cmux@70->i2c@0"
36
37#define OMNIA_I2C_MCU_CHIP_ADDR 0x2a
38#define OMNIA_I2C_MCU_CHIP_LEN 1
39
40#define OMNIA_I2C_EEPROM_CHIP_ADDR 0x54
41#define OMNIA_I2C_EEPROM_CHIP_LEN 2
Marek Behún09e16b82017-06-09 19:28:45 +020042#define OMNIA_I2C_EEPROM_MAGIC 0x0341a034
43
Pali Rohár7fcda0c2021-11-09 17:14:02 +010044#define SYS_RSTOUT_MASK MVEBU_REGISTER(0x18260)
45#define SYS_RSTOUT_MASK_WD BIT(10)
46
47#define A385_WDT_GLOBAL_CTRL MVEBU_REGISTER(0x20300)
48#define A385_WDT_GLOBAL_RATIO_MASK GENMASK(18, 16)
49#define A385_WDT_GLOBAL_RATIO_SHIFT 16
50#define A385_WDT_GLOBAL_25MHZ BIT(10)
51#define A385_WDT_GLOBAL_ENABLE BIT(8)
52
53#define A385_WDT_GLOBAL_STATUS MVEBU_REGISTER(0x20304)
54#define A385_WDT_GLOBAL_EXPIRED BIT(31)
55
56#define A385_WDT_DURATION MVEBU_REGISTER(0x20334)
57
58#define A385_WD_RSTOUT_UNMASK MVEBU_REGISTER(0x20704)
59#define A385_WD_RSTOUT_UNMASK_GLOBAL BIT(8)
60
Marek Behúnba53b6b2019-05-02 16:53:30 +020061enum mcu_commands {
62 CMD_GET_STATUS_WORD = 0x01,
63 CMD_GET_RESET = 0x09,
64 CMD_WATCHDOG_STATE = 0x0b,
65};
66
67enum status_word_bits {
68 CARD_DET_STSBIT = 0x0010,
69 MSATA_IND_STSBIT = 0x0020,
70};
Marek Behún09e16b82017-06-09 19:28:45 +020071
Marek Behún09e16b82017-06-09 19:28:45 +020072/*
73 * Those values and defines are taken from the Marvell U-Boot version
74 * "u-boot-2013.01-2014_T3.0"
75 */
76#define OMNIA_GPP_OUT_ENA_LOW \
77 (~(BIT(1) | BIT(4) | BIT(6) | BIT(7) | BIT(8) | BIT(9) | \
78 BIT(10) | BIT(11) | BIT(19) | BIT(22) | BIT(23) | BIT(25) | \
79 BIT(26) | BIT(27) | BIT(29) | BIT(30) | BIT(31)))
80#define OMNIA_GPP_OUT_ENA_MID \
81 (~(BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(15) | \
82 BIT(16) | BIT(17) | BIT(18)))
83
84#define OMNIA_GPP_OUT_VAL_LOW 0x0
85#define OMNIA_GPP_OUT_VAL_MID 0x0
86#define OMNIA_GPP_POL_LOW 0x0
87#define OMNIA_GPP_POL_MID 0x0
88
Pali Rohár3c4dd982022-03-02 12:47:54 +010089static struct serdes_map board_serdes_map[] = {
Marek Behún09e16b82017-06-09 19:28:45 +020090 {PEX0, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
91 {USB3_HOST0, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
92 {PEX1, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
93 {USB3_HOST1, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
94 {PEX2, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
95 {SGMII2, SERDES_SPEED_1_25_GBPS, SERDES_DEFAULT_MODE, 0, 0}
96};
97
Marek Behúnba53b6b2019-05-02 16:53:30 +020098static struct udevice *omnia_get_i2c_chip(const char *name, uint addr,
99 uint offset_len)
Marek Behún09e16b82017-06-09 19:28:45 +0200100{
101 struct udevice *bus, *dev;
Marek Behúnba53b6b2019-05-02 16:53:30 +0200102 int ret;
Marek Behún09e16b82017-06-09 19:28:45 +0200103
Marek Behúnba53b6b2019-05-02 16:53:30 +0200104 ret = uclass_get_device_by_name(UCLASS_I2C, OMNIA_I2C_BUS_NAME, &bus);
105 if (ret) {
106 printf("Cannot get I2C bus %s: uclass_get_device_by_name failed: %i\n",
107 OMNIA_I2C_BUS_NAME, ret);
108 return NULL;
Marek Behún09e16b82017-06-09 19:28:45 +0200109 }
110
Marek Behúnba53b6b2019-05-02 16:53:30 +0200111 ret = i2c_get_chip(bus, addr, offset_len, &dev);
Marek Behún09e16b82017-06-09 19:28:45 +0200112 if (ret) {
Marek Behúnba53b6b2019-05-02 16:53:30 +0200113 printf("Cannot get %s I2C chip: i2c_get_chip failed: %i\n",
114 name, ret);
115 return NULL;
Marek Behún09e16b82017-06-09 19:28:45 +0200116 }
117
Marek Behúnba53b6b2019-05-02 16:53:30 +0200118 return dev;
119}
Marek Behúnd0b374d2017-08-04 15:28:25 +0200120
Marek Behúnba53b6b2019-05-02 16:53:30 +0200121static int omnia_mcu_read(u8 cmd, void *buf, int len)
122{
123 struct udevice *chip;
124
125 chip = omnia_get_i2c_chip("MCU", OMNIA_I2C_MCU_CHIP_ADDR,
126 OMNIA_I2C_MCU_CHIP_LEN);
127 if (!chip)
128 return -ENODEV;
129
130 return dm_i2c_read(chip, cmd, buf, len);
131}
132
Marek Behúnba53b6b2019-05-02 16:53:30 +0200133static int omnia_mcu_write(u8 cmd, const void *buf, int len)
134{
135 struct udevice *chip;
136
137 chip = omnia_get_i2c_chip("MCU", OMNIA_I2C_MCU_CHIP_ADDR,
138 OMNIA_I2C_MCU_CHIP_LEN);
139 if (!chip)
140 return -ENODEV;
141
142 return dm_i2c_write(chip, cmd, buf, len);
143}
144
Pali Rohár7fcda0c2021-11-09 17:14:02 +0100145static void enable_a385_watchdog(unsigned int timeout_minutes)
146{
147 struct sar_freq_modes sar_freq;
148 u32 watchdog_freq;
149
150 printf("Enabling A385 watchdog with %u minutes timeout...\n",
151 timeout_minutes);
152
153 /*
154 * Use NBCLK clock (a.k.a. L2 clock) as watchdog input clock with
155 * its maximal ratio 7 instead of default fixed 25 MHz clock.
156 * It allows to set watchdog duration up to the 22 minutes.
157 */
158 clrsetbits_32(A385_WDT_GLOBAL_CTRL,
159 A385_WDT_GLOBAL_25MHZ | A385_WDT_GLOBAL_RATIO_MASK,
160 7 << A385_WDT_GLOBAL_RATIO_SHIFT);
161
162 /*
163 * Calculate watchdog clock frequency. It is defined by formula:
164 * freq = NBCLK / 2 / (2 ^ ratio)
165 * We set ratio to the maximal possible value 7.
166 */
167 get_sar_freq(&sar_freq);
168 watchdog_freq = sar_freq.nb_clk * 1000000 / 2 / (1 << 7);
169
170 /* Set watchdog duration */
171 writel(timeout_minutes * 60 * watchdog_freq, A385_WDT_DURATION);
172
173 /* Clear the watchdog expiration bit */
174 clrbits_32(A385_WDT_GLOBAL_STATUS, A385_WDT_GLOBAL_EXPIRED);
175
176 /* Enable watchdog timer */
177 setbits_32(A385_WDT_GLOBAL_CTRL, A385_WDT_GLOBAL_ENABLE);
178
179 /* Enable reset on watchdog */
180 setbits_32(A385_WD_RSTOUT_UNMASK, A385_WD_RSTOUT_UNMASK_GLOBAL);
181
182 /* Unmask reset for watchdog */
183 clrbits_32(SYS_RSTOUT_MASK, SYS_RSTOUT_MASK_WD);
184}
185
Marek Behúnba53b6b2019-05-02 16:53:30 +0200186static bool disable_mcu_watchdog(void)
187{
188 int ret;
189
190 puts("Disabling MCU watchdog... ");
191
192 ret = omnia_mcu_write(CMD_WATCHDOG_STATE, "\x00", 1);
193 if (ret) {
194 printf("omnia_mcu_write failed: %i\n", ret);
Marek Behún09e16b82017-06-09 19:28:45 +0200195 return false;
196 }
197
Marek Behúnba53b6b2019-05-02 16:53:30 +0200198 puts("disabled\n");
199
200 return true;
201}
Marek Behúnba53b6b2019-05-02 16:53:30 +0200202
Pali Rohárf8f305b2022-03-02 12:47:55 +0100203static bool omnia_detect_sata(const char *msata_slot)
Marek Behúnba53b6b2019-05-02 16:53:30 +0200204{
205 int ret;
206 u16 stsword;
207
208 puts("MiniPCIe/mSATA card detection... ");
209
Pali Rohárf8f305b2022-03-02 12:47:55 +0100210 if (msata_slot) {
211 if (strcmp(msata_slot, "pcie") == 0) {
212 puts("forced to MiniPCIe via env\n");
213 return false;
214 } else if (strcmp(msata_slot, "sata") == 0) {
215 puts("forced to mSATA via env\n");
216 return true;
217 } else if (strcmp(msata_slot, "auto") != 0) {
218 printf("unsupported env value '%s', fallback to... ", msata_slot);
219 }
220 }
221
Marek Behúnba53b6b2019-05-02 16:53:30 +0200222 ret = omnia_mcu_read(CMD_GET_STATUS_WORD, &stsword, sizeof(stsword));
223 if (ret) {
224 printf("omnia_mcu_read failed: %i, defaulting to MiniPCIe card\n",
225 ret);
Marek Behún09e16b82017-06-09 19:28:45 +0200226 return false;
227 }
228
Marek Behúnba53b6b2019-05-02 16:53:30 +0200229 if (!(stsword & CARD_DET_STSBIT)) {
230 puts("none\n");
Marek Behún09e16b82017-06-09 19:28:45 +0200231 return false;
232 }
Marek Behúnba53b6b2019-05-02 16:53:30 +0200233
234 if (stsword & MSATA_IND_STSBIT)
235 puts("mSATA\n");
236 else
237 puts("MiniPCIe\n");
238
239 return stsword & MSATA_IND_STSBIT ? true : false;
Marek Behún09e16b82017-06-09 19:28:45 +0200240}
241
Pali Rohárc13401b2022-03-02 12:47:52 +0100242void *env_sf_get_env_addr(void)
243{
244 /* SPI Flash is mapped to address 0xD4000000 only in SPL */
245#ifdef CONFIG_SPL_BUILD
246 return (void *)0xD4000000 + CONFIG_ENV_OFFSET;
247#else
248 return NULL;
249#endif
250}
251
Marek Behún09e16b82017-06-09 19:28:45 +0200252int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
253{
Pali Rohárf8f305b2022-03-02 12:47:55 +0100254#ifdef CONFIG_SPL_ENV_SUPPORT
255 /* Do not use env_load() as malloc() pool is too small at this stage */
256 bool has_env = (env_init() == 0);
257#endif
258 const char *env_value = NULL;
259
260#ifdef CONFIG_SPL_ENV_SUPPORT
261 /* beware that env_get() returns static allocated memory */
262 env_value = has_env ? env_get("omnia_msata_slot") : NULL;
263#endif
264
265 if (omnia_detect_sata(env_value)) {
Pali Rohár3c4dd982022-03-02 12:47:54 +0100266 /* Change SerDes for first mPCIe port (mSATA) from PCIe to SATA */
267 board_serdes_map[0].serdes_type = SATA0;
268 board_serdes_map[0].serdes_speed = SERDES_SPEED_6_GBPS;
269 board_serdes_map[0].serdes_mode = SERDES_DEFAULT_MODE;
Marek Behún09e16b82017-06-09 19:28:45 +0200270 }
271
Pali Rohár3c4dd982022-03-02 12:47:54 +0100272 *serdes_map_array = board_serdes_map;
273 *count = ARRAY_SIZE(board_serdes_map);
274
Marek Behún09e16b82017-06-09 19:28:45 +0200275 return 0;
276}
277
278struct omnia_eeprom {
279 u32 magic;
280 u32 ramsize;
281 char region[4];
282 u32 crc;
283};
284
285static bool omnia_read_eeprom(struct omnia_eeprom *oep)
286{
Marek Behúnba53b6b2019-05-02 16:53:30 +0200287 struct udevice *chip;
288 u32 crc;
289 int ret;
Marek Behún09e16b82017-06-09 19:28:45 +0200290
Marek Behúnba53b6b2019-05-02 16:53:30 +0200291 chip = omnia_get_i2c_chip("EEPROM", OMNIA_I2C_EEPROM_CHIP_ADDR,
292 OMNIA_I2C_EEPROM_CHIP_LEN);
293
294 if (!chip)
Marek Behún09e16b82017-06-09 19:28:45 +0200295 return false;
Marek Behún09e16b82017-06-09 19:28:45 +0200296
Marek Behúnba53b6b2019-05-02 16:53:30 +0200297 ret = dm_i2c_read(chip, 0, (void *)oep, sizeof(*oep));
Marek Behún09e16b82017-06-09 19:28:45 +0200298 if (ret) {
Marek Behúnba53b6b2019-05-02 16:53:30 +0200299 printf("dm_i2c_read failed: %i, cannot read EEPROM\n", ret);
Marek Behún09e16b82017-06-09 19:28:45 +0200300 return false;
301 }
302
Marek Behúnba53b6b2019-05-02 16:53:30 +0200303 if (oep->magic != OMNIA_I2C_EEPROM_MAGIC) {
304 printf("bad EEPROM magic number (%08x, should be %08x)\n",
305 oep->magic, OMNIA_I2C_EEPROM_MAGIC);
306 return false;
Marek Behún09e16b82017-06-09 19:28:45 +0200307 }
308
Marek Behúnba53b6b2019-05-02 16:53:30 +0200309 crc = crc32(0, (void *)oep, sizeof(*oep) - 4);
310 if (crc != oep->crc) {
311 printf("bad EEPROM CRC (stored %08x, computed %08x)\n",
312 oep->crc, crc);
Marek Behún09e16b82017-06-09 19:28:45 +0200313 return false;
314 }
315
316 return true;
317}
318
Marek Behún77652c72019-05-02 16:53:33 +0200319static int omnia_get_ram_size_gb(void)
320{
321 static int ram_size;
322 struct omnia_eeprom oep;
323
324 if (!ram_size) {
325 /* Get the board config from EEPROM */
326 if (omnia_read_eeprom(&oep)) {
327 debug("Memory config in EEPROM: 0x%02x\n", oep.ramsize);
328
329 if (oep.ramsize == 0x2)
330 ram_size = 2;
331 else
332 ram_size = 1;
333 } else {
334 /* Hardcoded fallback */
335 puts("Memory config from EEPROM read failed!\n");
336 puts("Falling back to default 1 GiB!\n");
337 ram_size = 1;
338 }
339 }
340
341 return ram_size;
342}
343
Marek Behún09e16b82017-06-09 19:28:45 +0200344/*
345 * Define the DDR layout / topology here in the board file. This will
346 * be used by the DDR3 init code in the SPL U-Boot version to configure
347 * the DDR3 controller.
348 */
Chris Packham1a07d212018-05-10 13:28:29 +1200349static struct mv_ddr_topology_map board_topology_map_1g = {
350 DEBUG_LEVEL_ERROR,
Marek Behún09e16b82017-06-09 19:28:45 +0200351 0x1, /* active interfaces */
352 /* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
353 { { { {0x1, 0, 0, 0},
354 {0x1, 0, 0, 0},
355 {0x1, 0, 0, 0},
356 {0x1, 0, 0, 0},
357 {0x1, 0, 0, 0} },
358 SPEED_BIN_DDR_1600K, /* speed_bin */
Chris Packham1a07d212018-05-10 13:28:29 +1200359 MV_DDR_DEV_WIDTH_16BIT, /* memory_width */
360 MV_DDR_DIE_CAP_4GBIT, /* mem_size */
Chris Packham4bf81db2018-12-03 14:26:49 +1300361 MV_DDR_FREQ_800, /* frequency */
Chris Packhamdd092bd2017-11-29 10:38:34 +1300362 0, 0, /* cas_wl cas_l */
Chris Packham3a09e132018-05-10 13:28:30 +1200363 MV_DDR_TEMP_NORMAL, /* temperature */
364 MV_DDR_TIM_2T} }, /* timing */
Chris Packham1a07d212018-05-10 13:28:29 +1200365 BUS_MASK_32BIT, /* Busses mask */
366 MV_DDR_CFG_DEFAULT, /* ddr configuration data source */
Moti Buskila498475e2021-02-19 17:11:19 +0100367 NOT_COMBINED, /* ddr twin-die combined */
Chris Packham1a07d212018-05-10 13:28:29 +1200368 { {0} }, /* raw spd data */
369 {0} /* timing parameters */
Marek Behún09e16b82017-06-09 19:28:45 +0200370};
371
Chris Packham1a07d212018-05-10 13:28:29 +1200372static struct mv_ddr_topology_map board_topology_map_2g = {
373 DEBUG_LEVEL_ERROR,
Marek Behún09e16b82017-06-09 19:28:45 +0200374 0x1, /* active interfaces */
375 /* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
376 { { { {0x1, 0, 0, 0},
377 {0x1, 0, 0, 0},
378 {0x1, 0, 0, 0},
379 {0x1, 0, 0, 0},
380 {0x1, 0, 0, 0} },
381 SPEED_BIN_DDR_1600K, /* speed_bin */
Chris Packham1a07d212018-05-10 13:28:29 +1200382 MV_DDR_DEV_WIDTH_16BIT, /* memory_width */
383 MV_DDR_DIE_CAP_8GBIT, /* mem_size */
Chris Packham4bf81db2018-12-03 14:26:49 +1300384 MV_DDR_FREQ_800, /* frequency */
Chris Packhamdd092bd2017-11-29 10:38:34 +1300385 0, 0, /* cas_wl cas_l */
Chris Packham3a09e132018-05-10 13:28:30 +1200386 MV_DDR_TEMP_NORMAL, /* temperature */
387 MV_DDR_TIM_2T} }, /* timing */
Chris Packham1a07d212018-05-10 13:28:29 +1200388 BUS_MASK_32BIT, /* Busses mask */
389 MV_DDR_CFG_DEFAULT, /* ddr configuration data source */
Moti Buskila498475e2021-02-19 17:11:19 +0100390 NOT_COMBINED, /* ddr twin-die combined */
Chris Packham1a07d212018-05-10 13:28:29 +1200391 { {0} }, /* raw spd data */
392 {0} /* timing parameters */
Marek Behún09e16b82017-06-09 19:28:45 +0200393};
394
Chris Packham1a07d212018-05-10 13:28:29 +1200395struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
Marek Behún09e16b82017-06-09 19:28:45 +0200396{
Marek Behún77652c72019-05-02 16:53:33 +0200397 if (omnia_get_ram_size_gb() == 2)
Marek Behún09e16b82017-06-09 19:28:45 +0200398 return &board_topology_map_2g;
Marek Behún77652c72019-05-02 16:53:33 +0200399 else
400 return &board_topology_map_1g;
Marek Behún09e16b82017-06-09 19:28:45 +0200401}
402
Marek Behún09e16b82017-06-09 19:28:45 +0200403static int set_regdomain(void)
404{
405 struct omnia_eeprom oep;
406 char rd[3] = {' ', ' ', 0};
407
408 if (omnia_read_eeprom(&oep))
409 memcpy(rd, &oep.region, 2);
410 else
411 puts("EEPROM regdomain read failed.\n");
412
413 printf("Regdomain set to %s\n", rd);
Simon Glass6a38e412017-08-03 12:22:09 -0600414 return env_set("regdomain", rd);
Marek Behún09e16b82017-06-09 19:28:45 +0200415}
Marek Behún0f2e66a2019-05-02 16:53:37 +0200416
Marek Behún0f2e66a2019-05-02 16:53:37 +0200417static void handle_reset_button(void)
418{
Pali Rohár905c3bf2021-06-14 16:45:58 +0200419 const char * const vars[1] = { "bootcmd_rescue", };
Marek Behún0f2e66a2019-05-02 16:53:37 +0200420 int ret;
421 u8 reset_status;
422
Pali Rohár905c3bf2021-06-14 16:45:58 +0200423 /*
424 * Ensure that bootcmd_rescue has always stock value, so that running
425 * run bootcmd_rescue
426 * always works correctly.
427 */
428 env_set_default_vars(1, (char * const *)vars, 0);
429
Marek Behún0f2e66a2019-05-02 16:53:37 +0200430 ret = omnia_mcu_read(CMD_GET_RESET, &reset_status, 1);
431 if (ret) {
432 printf("omnia_mcu_read failed: %i, reset status unknown!\n",
433 ret);
434 return;
435 }
436
437 env_set_ulong("omnia_reset", reset_status);
438
439 if (reset_status) {
Pali Rohár905c3bf2021-06-14 16:45:58 +0200440 const char * const vars[2] = {
Marek Behún09f8de22021-05-28 10:00:49 +0200441 "bootcmd",
Marek Behún09f8de22021-05-28 10:00:49 +0200442 "distro_bootcmd",
443 };
444
445 /*
446 * Set the above envs to their default values, in case the user
447 * managed to break them.
448 */
Pali Rohár905c3bf2021-06-14 16:45:58 +0200449 env_set_default_vars(2, (char * const *)vars, 0);
Marek Behún09f8de22021-05-28 10:00:49 +0200450
451 /* Ensure bootcmd_rescue is used by distroboot */
452 env_set("boot_targets", "rescue");
453
Marek Behún0f2e66a2019-05-02 16:53:37 +0200454 printf("RESET button was pressed, overwriting bootcmd!\n");
Marek Behún09f8de22021-05-28 10:00:49 +0200455 } else {
456 /*
457 * In case the user somehow managed to save environment with
458 * boot_targets=rescue, reset boot_targets to default value.
459 * This could happen in subsequent commands if bootcmd_rescue
460 * failed.
461 */
462 if (!strcmp(env_get("boot_targets"), "rescue")) {
463 const char * const vars[1] = {
464 "boot_targets",
465 };
466
467 env_set_default_vars(1, (char * const *)vars, 0);
468 }
Marek Behún0f2e66a2019-05-02 16:53:37 +0200469 }
470}
Marek Behún09e16b82017-06-09 19:28:45 +0200471
472int board_early_init_f(void)
473{
Marek Behún09e16b82017-06-09 19:28:45 +0200474 /* Configure MPP */
475 writel(0x11111111, MVEBU_MPP_BASE + 0x00);
476 writel(0x11111111, MVEBU_MPP_BASE + 0x04);
477 writel(0x11244011, MVEBU_MPP_BASE + 0x08);
478 writel(0x22222111, MVEBU_MPP_BASE + 0x0c);
479 writel(0x22200002, MVEBU_MPP_BASE + 0x10);
480 writel(0x30042022, MVEBU_MPP_BASE + 0x14);
481 writel(0x55550555, MVEBU_MPP_BASE + 0x18);
482 writel(0x00005550, MVEBU_MPP_BASE + 0x1c);
483
484 /* Set GPP Out value */
485 writel(OMNIA_GPP_OUT_VAL_LOW, MVEBU_GPIO0_BASE + 0x00);
486 writel(OMNIA_GPP_OUT_VAL_MID, MVEBU_GPIO1_BASE + 0x00);
487
488 /* Set GPP Polarity */
489 writel(OMNIA_GPP_POL_LOW, MVEBU_GPIO0_BASE + 0x0c);
490 writel(OMNIA_GPP_POL_MID, MVEBU_GPIO1_BASE + 0x0c);
491
492 /* Set GPP Out Enable */
493 writel(OMNIA_GPP_OUT_ENA_LOW, MVEBU_GPIO0_BASE + 0x04);
494 writel(OMNIA_GPP_OUT_ENA_MID, MVEBU_GPIO1_BASE + 0x04);
495
Marek Behún09e16b82017-06-09 19:28:45 +0200496 return 0;
497}
498
Marek Behúnf3556162021-08-16 15:19:39 +0200499void spl_board_init(void)
500{
501 /*
502 * If booting from UART, disable MCU watchdog in SPL, since uploading
Pali Rohár7fcda0c2021-11-09 17:14:02 +0100503 * U-Boot proper can take too much time and trigger it. Instead enable
504 * A385 watchdog with very high timeout (10 minutes) to prevent hangup.
Marek Behúnf3556162021-08-16 15:19:39 +0200505 */
Pali Rohár7fcda0c2021-11-09 17:14:02 +0100506 if (get_boot_device() == BOOT_DEVICE_UART) {
507 enable_a385_watchdog(10);
Marek Behúnf3556162021-08-16 15:19:39 +0200508 disable_mcu_watchdog();
Pali Rohár7fcda0c2021-11-09 17:14:02 +0100509 }
Marek Behúnf3556162021-08-16 15:19:39 +0200510}
511
Pali Rohárcbda3e22022-01-10 11:47:18 +0100512#if IS_ENABLED(CONFIG_OF_BOARD_FIXUP) || IS_ENABLED(CONFIG_OF_BOARD_SETUP)
513
514static void fixup_serdes_0_nodes(void *blob)
515{
516 bool mode_sata;
517 int node;
518
519 /*
520 * Determine if SerDes 0 is configured to SATA mode.
521 * We do this instead of calling omnia_detect_sata() to avoid another
522 * call to the MCU. By this time the common PHYs are initialized (it is
523 * done in SPL), so we can read this common PHY register.
524 */
525 mode_sata = (readl(MVEBU_REGISTER(0x183fc)) & GENMASK(3, 0)) == 2;
526
527 /*
528 * We're either adding status = "disabled" property, or changing
529 * status = "okay" to status = "disabled". In both cases we'll need more
530 * space. Increase the size a little.
531 */
532 if (fdt_increase_size(blob, 32) < 0) {
533 printf("Cannot increase FDT size!\n");
534 return;
535 }
536
537 /* If mSATA card is not present, disable SATA DT node */
538 if (!mode_sata) {
539 fdt_for_each_node_by_compatible(node, blob, -1,
540 "marvell,armada-380-ahci") {
541 if (!fdtdec_get_is_enabled(blob, node))
542 continue;
543
544 if (fdt_status_disabled(blob, node) < 0)
545 printf("Cannot disable SATA DT node!\n");
546 else
547 debug("Disabled SATA DT node\n");
548
549 break;
550 }
551
552 return;
553 }
554
555 /* Otherwise disable PCIe port 0 DT node (MiniPCIe / mSATA port) */
556 fdt_for_each_node_by_compatible(node, blob, -1,
557 "marvell,armada-370-pcie") {
558 int port;
559
560 if (!fdtdec_get_is_enabled(blob, node))
561 continue;
562
563 fdt_for_each_subnode (port, blob, node) {
564 if (!fdtdec_get_is_enabled(blob, port))
565 continue;
566
567 if (fdtdec_get_int(blob, port, "marvell,pcie-port",
568 -1) != 0)
569 continue;
570
571 if (fdt_status_disabled(blob, port) < 0)
572 printf("Cannot disable PCIe port 0 DT node!\n");
573 else
574 debug("Disabled PCIe port 0 DT node\n");
575
576 return;
577 }
578 }
579}
580
581#endif
582
583#if IS_ENABLED(CONFIG_OF_BOARD_FIXUP)
584int board_fix_fdt(void *blob)
585{
586 fixup_serdes_0_nodes(blob);
587
588 return 0;
589}
590#endif
591
Marek Behún09e16b82017-06-09 19:28:45 +0200592int board_init(void)
593{
Marek Behún4dfc57e2019-05-02 16:53:31 +0200594 /* address of boot parameters */
Marek Behún09e16b82017-06-09 19:28:45 +0200595 gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
596
Marek Behún88dc0242021-08-16 15:19:40 +0200597 return 0;
598}
599
600int board_late_init(void)
601{
Marek Behúnf3556162021-08-16 15:19:39 +0200602 /*
603 * If not booting from UART, MCU watchdog was not disabled in SPL,
604 * disable it now.
605 */
606 if (get_boot_device() != BOOT_DEVICE_UART)
607 disable_mcu_watchdog();
Marek Behún09e16b82017-06-09 19:28:45 +0200608
Marek Behún09e16b82017-06-09 19:28:45 +0200609 set_regdomain();
Marek Behún0f2e66a2019-05-02 16:53:37 +0200610 handle_reset_button();
Marek Behúndb1e5c62019-05-24 14:57:53 +0200611 pci_init();
Marek Behún09e16b82017-06-09 19:28:45 +0200612
613 return 0;
614}
615
Marek Behúnab9447f2021-10-09 19:33:44 +0200616int show_board_info(void)
Marek Behún09e16b82017-06-09 19:28:45 +0200617{
618 u32 version_num, serial_num;
Pali Rohár0387f7f2022-04-08 16:30:12 +0200619 int err;
Marek Behún09e16b82017-06-09 19:28:45 +0200620
Pali Rohár0387f7f2022-04-08 16:30:12 +0200621 err = turris_atsha_otp_get_serial_number(&version_num, &serial_num);
Marek Behúnab9447f2021-10-09 19:33:44 +0200622 printf("Model: Turris Omnia\n");
Marek Behúnc4ba72a2019-05-02 16:53:34 +0200623 printf(" RAM size: %i MiB\n", omnia_get_ram_size_gb() * 1024);
Marek Behún09e16b82017-06-09 19:28:45 +0200624 if (err)
Marek Behúnc4ba72a2019-05-02 16:53:34 +0200625 printf(" Serial Number: unknown\n");
Marek Behún09e16b82017-06-09 19:28:45 +0200626 else
Marek Behúnc4ba72a2019-05-02 16:53:34 +0200627 printf(" Serial Number: %08X%08X\n", be32_to_cpu(version_num),
628 be32_to_cpu(serial_num));
Marek Behún09e16b82017-06-09 19:28:45 +0200629
630 return 0;
631}
632
Marek Behún09e16b82017-06-09 19:28:45 +0200633int misc_init_r(void)
634{
Pali Rohár60f37e82022-04-08 16:30:14 +0200635 turris_atsha_otp_init_mac_addresses(1);
Marek Behún09e16b82017-06-09 19:28:45 +0200636 return 0;
637}
638
Marek Behún91ef59c2021-07-15 19:21:02 +0200639#if defined(CONFIG_OF_BOARD_SETUP)
640/*
641 * I plan to generalize this function and move it to common/fdt_support.c.
642 * This will require some more work on multiple boards, though, so for now leave
643 * it here.
644 */
645static bool fixup_mtd_partitions(void *blob, int offset, struct mtd_info *mtd)
646{
647 struct mtd_info *slave;
648 int parts;
649
650 parts = fdt_subnode_offset(blob, offset, "partitions");
651 if (parts < 0)
652 return false;
653
654 if (fdt_del_node(blob, parts) < 0)
655 return false;
656
657 parts = fdt_add_subnode(blob, offset, "partitions");
658 if (parts < 0)
659 return false;
660
661 if (fdt_setprop_u32(blob, parts, "#address-cells", 1) < 0)
662 return false;
663
664 if (fdt_setprop_u32(blob, parts, "#size-cells", 1) < 0)
665 return false;
666
667 if (fdt_setprop_string(blob, parts, "compatible",
668 "fixed-partitions") < 0)
669 return false;
670
671 mtd_probe_devices();
672
Pali Rohárd8210ef2021-10-21 17:55:48 +0200673 list_for_each_entry_reverse(slave, &mtd->partitions, node) {
Marek Behún91ef59c2021-07-15 19:21:02 +0200674 char name[32];
675 int part;
676
677 snprintf(name, sizeof(name), "partition@%llx", slave->offset);
678 part = fdt_add_subnode(blob, parts, name);
679 if (part < 0)
680 return false;
681
682 if (fdt_setprop_u32(blob, part, "reg", slave->offset) < 0)
683 return false;
684
685 if (fdt_appendprop_u32(blob, part, "reg", slave->size) < 0)
686 return false;
687
688 if (fdt_setprop_string(blob, part, "label", slave->name) < 0)
689 return false;
690
691 if (!(slave->flags & MTD_WRITEABLE))
692 if (fdt_setprop_empty(blob, part, "read-only") < 0)
693 return false;
694
695 if (slave->flags & MTD_POWERUP_LOCK)
696 if (fdt_setprop_empty(blob, part, "lock") < 0)
697 return false;
698 }
699
700 return true;
701}
702
Pali Rohárcbda3e22022-01-10 11:47:18 +0100703static void fixup_spi_nor_partitions(void *blob)
Marek Behún91ef59c2021-07-15 19:21:02 +0200704{
705 struct mtd_info *mtd;
706 int node;
707
708 mtd = get_mtd_device_nm(OMNIA_SPI_NOR_PATH);
709 if (IS_ERR_OR_NULL(mtd))
710 goto fail;
711
712 node = fdt_path_offset(blob, OMNIA_SPI_NOR_PATH);
713 if (node < 0)
714 goto fail;
715
716 if (!fixup_mtd_partitions(blob, node, mtd))
717 goto fail;
718
Marek Behún36feac92021-09-25 02:49:18 +0200719 put_mtd_device(mtd);
Pali Rohárcbda3e22022-01-10 11:47:18 +0100720 return;
Marek Behún91ef59c2021-07-15 19:21:02 +0200721
722fail:
723 printf("Failed fixing SPI NOR partitions!\n");
Marek Behún36feac92021-09-25 02:49:18 +0200724 if (!IS_ERR_OR_NULL(mtd))
725 put_mtd_device(mtd);
Pali Rohárcbda3e22022-01-10 11:47:18 +0100726}
727
728int ft_board_setup(void *blob, struct bd_info *bd)
729{
730 fixup_spi_nor_partitions(blob);
731 fixup_serdes_0_nodes(blob);
732
Marek Behún91ef59c2021-07-15 19:21:02 +0200733 return 0;
734}
735#endif