Merge branch 'master' of git://git.denx.de/u-boot-video
[platform/kernel/u-boot.git] / board / samsung / common / board.c
1 /*
2  * (C) Copyright 2013 SAMSUNG Electronics
3  * Rajeshwari Shinde <rajeshwari.s@samsung.com>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <cros_ec.h>
10 #include <errno.h>
11 #include <fdtdec.h>
12 #include <spi.h>
13 #include <tmu.h>
14 #include <netdev.h>
15 #include <asm/io.h>
16 #include <asm/gpio.h>
17 #include <asm/arch/board.h>
18 #include <asm/arch/cpu.h>
19 #include <asm/arch/dwmmc.h>
20 #include <asm/arch/mmc.h>
21 #include <asm/arch/pinmux.h>
22 #include <asm/arch/power.h>
23 #include <asm/arch/system.h>
24 #include <asm/arch/sromc.h>
25 #include <lcd.h>
26 #include <i2c.h>
27 #include <usb.h>
28 #include <dwc3-uboot.h>
29 #include <samsung/misc.h>
30 #include <dm/pinctrl.h>
31 #include <dm.h>
32
33 DECLARE_GLOBAL_DATA_PTR;
34
35 __weak int exynos_early_init_f(void)
36 {
37         return 0;
38 }
39
40 __weak int exynos_power_init(void)
41 {
42         return 0;
43 }
44
45 #if defined CONFIG_EXYNOS_TMU
46 /* Boot Time Thermal Analysis for SoC temperature threshold breach */
47 static void boot_temp_check(void)
48 {
49         int temp;
50
51         switch (tmu_monitor(&temp)) {
52         case TMU_STATUS_NORMAL:
53                 break;
54         case TMU_STATUS_TRIPPED:
55                 /*
56                  * Status TRIPPED ans WARNING means corresponding threshold
57                  * breach
58                  */
59                 puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
60                 set_ps_hold_ctrl();
61                 hang();
62                 break;
63         case TMU_STATUS_WARNING:
64                 puts("EXYNOS_TMU: WARNING! Temperature very high\n");
65                 break;
66         case TMU_STATUS_INIT:
67                 /*
68                  * TMU_STATUS_INIT means something is wrong with temperature
69                  * sensing and TMU status was changed back from NORMAL to INIT.
70                  */
71                 puts("EXYNOS_TMU: WARNING! Temperature sensing not done\n");
72                 break;
73         default:
74                 debug("EXYNOS_TMU: Unknown TMU state\n");
75         }
76 }
77 #endif
78
79 int board_init(void)
80 {
81         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
82 #if defined CONFIG_EXYNOS_TMU
83         if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) {
84                 debug("%s: Failed to init TMU\n", __func__);
85                 return -1;
86         }
87         boot_temp_check();
88 #endif
89 #ifdef CONFIG_TZSW_RESERVED_DRAM_SIZE
90         /* The last few MB of memory can be reserved for secure firmware */
91         ulong size = CONFIG_TZSW_RESERVED_DRAM_SIZE;
92
93         gd->ram_size -= size;
94         gd->bd->bi_dram[CONFIG_NR_DRAM_BANKS - 1].size -= size;
95 #endif
96         return exynos_init();
97 }
98
99 int dram_init(void)
100 {
101         unsigned int i;
102         unsigned long addr;
103
104         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
105                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
106                 gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
107         }
108         return 0;
109 }
110
111 void dram_init_banksize(void)
112 {
113         unsigned int i;
114         unsigned long addr, size;
115
116         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
117                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
118                 size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);
119
120                 gd->bd->bi_dram[i].start = addr;
121                 gd->bd->bi_dram[i].size = size;
122         }
123 }
124
125 static int board_uart_init(void)
126 {
127 #ifndef CONFIG_PINCTRL_EXYNOS
128         int err, uart_id, ret = 0;
129
130         for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
131                 err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
132                 if (err) {
133                         debug("UART%d not configured\n",
134                               (uart_id - PERIPH_ID_UART0));
135                         ret |= err;
136                 }
137         }
138         return ret;
139 #else
140         return 0;
141 #endif
142 }
143
144 #ifdef CONFIG_BOARD_EARLY_INIT_F
145 int board_early_init_f(void)
146 {
147         int err;
148 #ifdef CONFIG_BOARD_TYPES
149         set_board_type();
150 #endif
151         err = board_uart_init();
152         if (err) {
153                 debug("UART init failed\n");
154                 return err;
155         }
156
157 #ifdef CONFIG_SYS_I2C_INIT_BOARD
158         board_i2c_init(gd->fdt_blob);
159 #endif
160
161         return exynos_early_init_f();
162 }
163 #endif
164
165 #if defined(CONFIG_POWER) || defined(CONFIG_DM_PMIC)
166 int power_init_board(void)
167 {
168         set_ps_hold_ctrl();
169
170         return exynos_power_init();
171 }
172 #endif
173
174 #ifdef CONFIG_SMC911X
175 static int decode_sromc(const void *blob, struct fdt_sromc *config)
176 {
177         int err;
178         int node;
179
180         node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
181         if (node < 0) {
182                 debug("Could not find SROMC node\n");
183                 return node;
184         }
185
186         config->bank = fdtdec_get_int(blob, node, "bank", 0);
187         config->width = fdtdec_get_int(blob, node, "width", 2);
188
189         err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
190                         FDT_SROM_TIMING_COUNT);
191         if (err < 0) {
192                 debug("Could not decode SROMC configuration Error: %s\n",
193                       fdt_strerror(err));
194                 return -FDT_ERR_NOTFOUND;
195         }
196         return 0;
197 }
198 #endif
199
200 int board_eth_init(bd_t *bis)
201 {
202 #ifdef CONFIG_SMC911X
203         u32 smc_bw_conf, smc_bc_conf;
204         struct fdt_sromc config;
205         fdt_addr_t base_addr;
206         int node;
207
208         node = decode_sromc(gd->fdt_blob, &config);
209         if (node < 0) {
210                 debug("%s: Could not find sromc configuration\n", __func__);
211                 return 0;
212         }
213         node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
214         if (node < 0) {
215                 debug("%s: Could not find lan9215 configuration\n", __func__);
216                 return 0;
217         }
218
219         /* We now have a node, so any problems from now on are errors */
220         base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
221         if (base_addr == FDT_ADDR_T_NONE) {
222                 debug("%s: Could not find lan9215 address\n", __func__);
223                 return -1;
224         }
225
226         /* Ethernet needs data bus width of 16 bits */
227         if (config.width != 2) {
228                 debug("%s: Unsupported bus width %d\n", __func__,
229                       config.width);
230                 return -1;
231         }
232         smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
233                         | SROMC_BYTE_ENABLE(config.bank);
234
235         smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS])   |
236                         SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |
237                         SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |
238                         SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |
239                         SROMC_BC_TAH(config.timing[FDT_SROM_TAH])   |
240                         SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |
241                         SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);
242
243         /* Select and configure the SROMC bank */
244         exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
245         s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
246         return smc911x_initialize(0, base_addr);
247 #endif
248         return 0;
249 }
250
251 #ifdef CONFIG_GENERIC_MMC
252 static int init_mmc(void)
253 {
254 #ifdef CONFIG_MMC_SDHCI
255         return exynos_mmc_init(gd->fdt_blob);
256 #else
257         return 0;
258 #endif
259 }
260
261 static int init_dwmmc(void)
262 {
263 #ifdef CONFIG_MMC_DW
264         return exynos_dwmmc_init(gd->fdt_blob);
265 #else
266         return 0;
267 #endif
268 }
269
270 int board_mmc_init(bd_t *bis)
271 {
272         int ret;
273
274         if (get_boot_mode() == BOOT_MODE_SD) {
275                 ret = init_mmc();
276                 ret |= init_dwmmc();
277         } else {
278                 ret = init_dwmmc();
279                 ret |= init_mmc();
280         }
281
282         if (ret)
283                 debug("mmc init failed\n");
284
285         return ret;
286 }
287 #endif
288
289 #ifdef CONFIG_DISPLAY_BOARDINFO
290 int checkboard(void)
291 {
292         const char *board_info;
293
294         board_info = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
295         printf("Board: %s\n", board_info ? board_info : "unknown");
296 #ifdef CONFIG_BOARD_TYPES
297         board_info = get_board_type();
298         if (board_info)
299                 printf("Type:  %s\n", board_info);
300 #endif
301         return 0;
302 }
303 #endif
304
305 #ifdef CONFIG_BOARD_LATE_INIT
306 int board_late_init(void)
307 {
308         stdio_print_current_devices();
309
310         if (cros_ec_get_error()) {
311                 /* Force console on */
312                 gd->flags &= ~GD_FLG_SILENT;
313
314                 printf("cros-ec communications failure %d\n",
315                        cros_ec_get_error());
316                 puts("\nPlease reset with Power+Refresh\n\n");
317                 panic("Cannot init cros-ec device");
318                 return -1;
319         }
320         return 0;
321 }
322 #endif
323
324 #ifdef CONFIG_MISC_INIT_R
325 int misc_init_r(void)
326 {
327 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
328         set_board_info();
329 #endif
330 #ifdef CONFIG_LCD_MENU
331         keys_init();
332         check_boot_mode();
333 #endif
334 #ifdef CONFIG_CMD_BMP
335         if (panel_info.logo_on)
336                 draw_logo();
337 #endif
338         return 0;
339 }
340 #endif
341
342 void reset_misc(void)
343 {
344         struct gpio_desc gpio = {};
345         int node;
346
347         node = fdt_node_offset_by_compatible(gd->fdt_blob, 0,
348                         "samsung,emmc-reset");
349         if (node < 0)
350                 return;
351
352         gpio_request_by_name_nodev(gd->fdt_blob, node, "reset-gpio", 0, &gpio,
353                                    GPIOD_IS_OUT);
354
355         if (dm_gpio_is_valid(&gpio)) {
356                 /*
357                  * Reset eMMC
358                  *
359                  * FIXME: Need to optimize delay time. Minimum 1usec pulse is
360                  *        required by 'JEDEC Standard No.84-A441' (eMMC)
361                  *        document but real delay time is expected to greater
362                  *        than 1usec.
363                  */
364                 dm_gpio_set_value(&gpio, 0);
365                 mdelay(10);
366                 dm_gpio_set_value(&gpio, 1);
367         }
368 }
369
370 int board_usb_cleanup(int index, enum usb_init_type init)
371 {
372 #ifdef CONFIG_USB_DWC3
373         dwc3_uboot_exit(index);
374 #endif
375         return 0;
376 }