Merge branch 'u-boot/master' into 'u-boot-arm/master'
[karo-tx-uboot.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/arch/board.h>
17 #include <asm/arch/cpu.h>
18 #include <asm/arch/dwmmc.h>
19 #include <asm/arch/gpio.h>
20 #include <asm/arch/mmc.h>
21 #include <asm/arch/pinmux.h>
22 #include <asm/arch/power.h>
23 #include <power/pmic.h>
24 #include <asm/arch/sromc.h>
25 #include <lcd.h>
26 #include <samsung/misc.h>
27
28 DECLARE_GLOBAL_DATA_PTR;
29
30 int __exynos_early_init_f(void)
31 {
32         return 0;
33 }
34 int exynos_early_init_f(void)
35         __attribute__((weak, alias("__exynos_early_init_f")));
36
37 int __exynos_power_init(void)
38 {
39         return 0;
40 }
41 int exynos_power_init(void)
42         __attribute__((weak, alias("__exynos_power_init")));
43
44 #if defined CONFIG_EXYNOS_TMU
45 /* Boot Time Thermal Analysis for SoC temperature threshold breach */
46 static void boot_temp_check(void)
47 {
48         int temp;
49
50         switch (tmu_monitor(&temp)) {
51         case TMU_STATUS_NORMAL:
52                 break;
53         case TMU_STATUS_TRIPPED:
54                 /*
55                  * Status TRIPPED ans WARNING means corresponding threshold
56                  * breach
57                  */
58                 puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n");
59                 set_ps_hold_ctrl();
60                 hang();
61                 break;
62         case TMU_STATUS_WARNING:
63                 puts("EXYNOS_TMU: WARNING! Temperature very high\n");
64                 break;
65         case TMU_STATUS_INIT:
66                 /*
67                  * TMU_STATUS_INIT means something is wrong with temperature
68                  * sensing and TMU status was changed back from NORMAL to INIT.
69                  */
70                 puts("EXYNOS_TMU: WARNING! Temperature sensing not done\n");
71                 break;
72         default:
73                 debug("EXYNOS_TMU: Unknown TMU state\n");
74         }
75 }
76 #endif
77
78 int board_init(void)
79 {
80         gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
81 #if defined CONFIG_EXYNOS_TMU
82         if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) {
83                 debug("%s: Failed to init TMU\n", __func__);
84                 return -1;
85         }
86         boot_temp_check();
87 #endif
88
89 #ifdef CONFIG_EXYNOS_SPI
90         spi_init();
91 #endif
92         return exynos_init();
93 }
94
95 int dram_init(void)
96 {
97         int i;
98         u32 addr;
99
100         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
101                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
102                 gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
103         }
104         return 0;
105 }
106
107 void dram_init_banksize(void)
108 {
109         int i;
110         u32 addr, size;
111
112         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
113                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
114                 size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);
115
116                 gd->bd->bi_dram[i].start = addr;
117                 gd->bd->bi_dram[i].size = size;
118         }
119 }
120
121 static int board_uart_init(void)
122 {
123         int err, uart_id, ret = 0;
124
125         for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
126                 err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
127                 if (err) {
128                         debug("UART%d not configured\n",
129                               (uart_id - PERIPH_ID_UART0));
130                         ret |= err;
131                 }
132         }
133         return ret;
134 }
135
136 #ifdef CONFIG_BOARD_EARLY_INIT_F
137 int board_early_init_f(void)
138 {
139         int err;
140
141         err = board_uart_init();
142         if (err) {
143                 debug("UART init failed\n");
144                 return err;
145         }
146
147 #ifdef CONFIG_SYS_I2C_INIT_BOARD
148         board_i2c_init(gd->fdt_blob);
149 #endif
150
151         return exynos_early_init_f();
152 }
153 #endif
154
155 #if defined(CONFIG_POWER)
156 int power_init_board(void)
157 {
158         set_ps_hold_ctrl();
159
160         return exynos_power_init();
161 }
162 #endif
163
164 #ifdef CONFIG_OF_CONTROL
165 #ifdef CONFIG_SMC911X
166 static int decode_sromc(const void *blob, struct fdt_sromc *config)
167 {
168         int err;
169         int node;
170
171         node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
172         if (node < 0) {
173                 debug("Could not find SROMC node\n");
174                 return node;
175         }
176
177         config->bank = fdtdec_get_int(blob, node, "bank", 0);
178         config->width = fdtdec_get_int(blob, node, "width", 2);
179
180         err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
181                         FDT_SROM_TIMING_COUNT);
182         if (err < 0) {
183                 debug("Could not decode SROMC configuration Error: %s\n",
184                       fdt_strerror(err));
185                 return -FDT_ERR_NOTFOUND;
186         }
187         return 0;
188 }
189 #endif
190
191 int board_eth_init(bd_t *bis)
192 {
193 #ifdef CONFIG_SMC911X
194         u32 smc_bw_conf, smc_bc_conf;
195         struct fdt_sromc config;
196         fdt_addr_t base_addr;
197         int node;
198
199         node = decode_sromc(gd->fdt_blob, &config);
200         if (node < 0) {
201                 debug("%s: Could not find sromc configuration\n", __func__);
202                 return 0;
203         }
204         node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
205         if (node < 0) {
206                 debug("%s: Could not find lan9215 configuration\n", __func__);
207                 return 0;
208         }
209
210         /* We now have a node, so any problems from now on are errors */
211         base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
212         if (base_addr == FDT_ADDR_T_NONE) {
213                 debug("%s: Could not find lan9215 address\n", __func__);
214                 return -1;
215         }
216
217         /* Ethernet needs data bus width of 16 bits */
218         if (config.width != 2) {
219                 debug("%s: Unsupported bus width %d\n", __func__,
220                       config.width);
221                 return -1;
222         }
223         smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
224                         | SROMC_BYTE_ENABLE(config.bank);
225
226         smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS])   |
227                         SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |
228                         SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |
229                         SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |
230                         SROMC_BC_TAH(config.timing[FDT_SROM_TAH])   |
231                         SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |
232                         SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);
233
234         /* Select and configure the SROMC bank */
235         exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
236         s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
237         return smc911x_initialize(0, base_addr);
238 #endif
239         return 0;
240 }
241
242 #ifdef CONFIG_GENERIC_MMC
243 int board_mmc_init(bd_t *bis)
244 {
245         int ret;
246
247 #ifdef CONFIG_SDHCI
248         /* mmc initializattion for available channels */
249         ret = exynos_mmc_init(gd->fdt_blob);
250         if (ret)
251                 debug("mmc init failed\n");
252 #endif
253 #ifdef CONFIG_DWMMC
254         /* dwmmc initializattion for available channels */
255         ret = exynos_dwmmc_init(gd->fdt_blob);
256         if (ret)
257                 debug("dwmmc init failed\n");
258 #endif
259
260         return ret;
261 }
262 #endif
263
264 #ifdef CONFIG_DISPLAY_BOARDINFO
265 int checkboard(void)
266 {
267         const char *board_name;
268
269         board_name = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
270         printf("Board: %s\n", board_name ? board_name : "unknown");
271
272         return 0;
273 }
274 #endif
275 #endif /* CONFIG_OF_CONTROL */
276
277 #ifdef CONFIG_BOARD_LATE_INIT
278 int board_late_init(void)
279 {
280         stdio_print_current_devices();
281
282         if (cros_ec_get_error()) {
283                 /* Force console on */
284                 gd->flags &= ~GD_FLG_SILENT;
285
286                 printf("cros-ec communications failure %d\n",
287                        cros_ec_get_error());
288                 puts("\nPlease reset with Power+Refresh\n\n");
289                 panic("Cannot init cros-ec device");
290                 return -1;
291         }
292         return 0;
293 }
294 #endif
295
296 int arch_early_init_r(void)
297 {
298 #ifdef CONFIG_CROS_EC
299         if (cros_ec_board_init()) {
300                 printf("%s: Failed to init EC\n", __func__);
301                 return 0;
302         }
303 #endif
304
305         return 0;
306 }
307
308 #ifdef CONFIG_MISC_INIT_R
309 int misc_init_r(void)
310 {
311 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
312         set_board_info();
313 #endif
314 #ifdef CONFIG_LCD_MENU
315         keys_init();
316         check_boot_mode();
317 #endif
318 #ifdef CONFIG_CMD_BMP
319         if (panel_info.logo_on)
320                 draw_logo();
321 #endif
322         return 0;
323 }
324 #endif