dm: exynos: Convert SPI to driver model
[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/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 <power/pmic.h>
25 #include <asm/arch/sromc.h>
26 #include <lcd.h>
27 #include <samsung/misc.h>
28
29 DECLARE_GLOBAL_DATA_PTR;
30
31 int __exynos_early_init_f(void)
32 {
33         return 0;
34 }
35 int exynos_early_init_f(void)
36         __attribute__((weak, alias("__exynos_early_init_f")));
37
38 int __exynos_power_init(void)
39 {
40         return 0;
41 }
42 int exynos_power_init(void)
43         __attribute__((weak, alias("__exynos_power_init")));
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
90         return exynos_init();
91 }
92
93 int dram_init(void)
94 {
95         int i;
96         u32 addr;
97
98         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
99                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
100                 gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
101         }
102         return 0;
103 }
104
105 void dram_init_banksize(void)
106 {
107         int i;
108         u32 addr, size;
109
110         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
111                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
112                 size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);
113
114                 gd->bd->bi_dram[i].start = addr;
115                 gd->bd->bi_dram[i].size = size;
116         }
117 }
118
119 static int board_uart_init(void)
120 {
121         int err, uart_id, ret = 0;
122
123         for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
124                 err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
125                 if (err) {
126                         debug("UART%d not configured\n",
127                               (uart_id - PERIPH_ID_UART0));
128                         ret |= err;
129                 }
130         }
131         return ret;
132 }
133
134 #ifdef CONFIG_BOARD_EARLY_INIT_F
135 int board_early_init_f(void)
136 {
137         int err;
138 #ifdef CONFIG_BOARD_TYPES
139         set_board_type();
140 #endif
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 #if defined(CONFIG_OF_CONTROL) && defined(CONFIG_EXYNOS_FB)
152 /*
153  * board_init_f(arch/arm/lib/board.c) calls lcd_setmem() which needs
154  * panel_info.vl_col, panel_info.vl_row and panel_info.vl_bpix, to reserve
155  * FB memory at a very early stage. So, we need to fill panel_info.vl_col,
156  * panel_info.vl_row and panel_info.vl_bpix before lcd_setmem() is called.
157  */
158         err = exynos_lcd_early_init(gd->fdt_blob);
159         if (err) {
160                 debug("LCD early init failed\n");
161                 return err;
162         }
163 #endif
164
165         return exynos_early_init_f();
166 }
167 #endif
168
169 #if defined(CONFIG_POWER)
170 int power_init_board(void)
171 {
172         set_ps_hold_ctrl();
173
174         return exynos_power_init();
175 }
176 #endif
177
178 #ifdef CONFIG_OF_CONTROL
179 #ifdef CONFIG_SMC911X
180 static int decode_sromc(const void *blob, struct fdt_sromc *config)
181 {
182         int err;
183         int node;
184
185         node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
186         if (node < 0) {
187                 debug("Could not find SROMC node\n");
188                 return node;
189         }
190
191         config->bank = fdtdec_get_int(blob, node, "bank", 0);
192         config->width = fdtdec_get_int(blob, node, "width", 2);
193
194         err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
195                         FDT_SROM_TIMING_COUNT);
196         if (err < 0) {
197                 debug("Could not decode SROMC configuration Error: %s\n",
198                       fdt_strerror(err));
199                 return -FDT_ERR_NOTFOUND;
200         }
201         return 0;
202 }
203 #endif
204
205 int board_eth_init(bd_t *bis)
206 {
207 #ifdef CONFIG_SMC911X
208         u32 smc_bw_conf, smc_bc_conf;
209         struct fdt_sromc config;
210         fdt_addr_t base_addr;
211         int node;
212
213         node = decode_sromc(gd->fdt_blob, &config);
214         if (node < 0) {
215                 debug("%s: Could not find sromc configuration\n", __func__);
216                 return 0;
217         }
218         node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
219         if (node < 0) {
220                 debug("%s: Could not find lan9215 configuration\n", __func__);
221                 return 0;
222         }
223
224         /* We now have a node, so any problems from now on are errors */
225         base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
226         if (base_addr == FDT_ADDR_T_NONE) {
227                 debug("%s: Could not find lan9215 address\n", __func__);
228                 return -1;
229         }
230
231         /* Ethernet needs data bus width of 16 bits */
232         if (config.width != 2) {
233                 debug("%s: Unsupported bus width %d\n", __func__,
234                       config.width);
235                 return -1;
236         }
237         smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
238                         | SROMC_BYTE_ENABLE(config.bank);
239
240         smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS])   |
241                         SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |
242                         SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |
243                         SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |
244                         SROMC_BC_TAH(config.timing[FDT_SROM_TAH])   |
245                         SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |
246                         SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);
247
248         /* Select and configure the SROMC bank */
249         exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
250         s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
251         return smc911x_initialize(0, base_addr);
252 #endif
253         return 0;
254 }
255
256 #ifdef CONFIG_GENERIC_MMC
257 static int init_mmc(void)
258 {
259 #ifdef CONFIG_SDHCI
260         return exynos_mmc_init(gd->fdt_blob);
261 #else
262         return 0;
263 #endif
264 }
265
266 static int init_dwmmc(void)
267 {
268 #ifdef CONFIG_DWMMC
269         return exynos_dwmmc_init(gd->fdt_blob);
270 #else
271         return 0;
272 #endif
273 }
274
275 int board_mmc_init(bd_t *bis)
276 {
277         int ret;
278
279         if (get_boot_mode() == BOOT_MODE_SD) {
280                 ret = init_mmc();
281                 ret |= init_dwmmc();
282         } else {
283                 ret = init_dwmmc();
284                 ret |= init_mmc();
285         }
286
287         if (ret)
288                 debug("mmc init failed\n");
289
290         return ret;
291 }
292 #endif
293
294 #ifdef CONFIG_DISPLAY_BOARDINFO
295 int checkboard(void)
296 {
297         const char *board_info;
298
299         board_info = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
300         printf("Board: %s\n", board_info ? board_info : "unknown");
301 #ifdef CONFIG_BOARD_TYPES
302         board_info = get_board_type();
303
304         printf("Model: %s\n", board_info ? board_info : "unknown");
305 #endif
306         return 0;
307 }
308 #endif
309 #endif /* CONFIG_OF_CONTROL */
310
311 #ifdef CONFIG_BOARD_LATE_INIT
312 int board_late_init(void)
313 {
314         stdio_print_current_devices();
315
316         if (cros_ec_get_error()) {
317                 /* Force console on */
318                 gd->flags &= ~GD_FLG_SILENT;
319
320                 printf("cros-ec communications failure %d\n",
321                        cros_ec_get_error());
322                 puts("\nPlease reset with Power+Refresh\n\n");
323                 panic("Cannot init cros-ec device");
324                 return -1;
325         }
326         return 0;
327 }
328 #endif
329
330 int arch_early_init_r(void)
331 {
332 #ifdef CONFIG_CROS_EC
333         if (cros_ec_board_init()) {
334                 printf("%s: Failed to init EC\n", __func__);
335                 return 0;
336         }
337 #endif
338
339         return 0;
340 }
341
342 #ifdef CONFIG_MISC_INIT_R
343 int misc_init_r(void)
344 {
345 #ifdef CONFIG_SET_DFU_ALT_INFO
346         set_dfu_alt_info();
347 #endif
348 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
349         set_board_info();
350 #endif
351 #ifdef CONFIG_LCD_MENU
352         keys_init();
353         check_boot_mode();
354 #endif
355 #ifdef CONFIG_CMD_BMP
356         if (panel_info.logo_on)
357                 draw_logo();
358 #endif
359         return 0;
360 }
361 #endif