1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * K2G EVM : Board initialization
4 *
5 * (C) Copyright 2015
6 * Texas Instruments Incorporated, <www.ti.com>
7 */
8 #include <common.h>
9 #include <asm/arch/clock.h>
10 #include <asm/ti-common/keystone_net.h>
11 #include <asm/arch/psc_defs.h>
12 #include <asm/arch/mmc_host_def.h>
13 #include <fdtdec.h>
14 #include <i2c.h>
15 #include <remoteproc.h>
16 #include "mux-k2g.h"
17 #include "../common/board_detect.h"
18
19 #define K2G_GP_AUDIO_CODEC_ADDRESS 0x1B
20
21 const unsigned int sysclk_array[MAX_SYSCLK] = {
22 19200000,
23 24000000,
24 25000000,
25 26000000,
26 };
27
get_external_clk(u32 clk)28 unsigned int get_external_clk(u32 clk)
29 {
30 unsigned int clk_freq;
31 u8 sysclk_index = get_sysclk_index();
32
33 switch (clk) {
34 case sys_clk:
35 clk_freq = sysclk_array[sysclk_index];
36 break;
37 case pa_clk:
38 clk_freq = sysclk_array[sysclk_index];
39 break;
40 case tetris_clk:
41 clk_freq = sysclk_array[sysclk_index];
42 break;
43 case ddr3a_clk:
44 clk_freq = sysclk_array[sysclk_index];
45 break;
46 case uart_clk:
47 clk_freq = sysclk_array[sysclk_index];
48 break;
49 default:
50 clk_freq = 0;
51 break;
52 }
53
54 return clk_freq;
55 }
56
57 int speeds[DEVSPEED_NUMSPDS] = {
58 SPD400,
59 SPD600,
60 SPD800,
61 SPD900,
62 SPD1000,
63 SPD900,
64 SPD800,
65 SPD600,
66 SPD400,
67 SPD200,
68 };
69
70 static int dev_speeds[DEVSPEED_NUMSPDS] = {
71 SPD600,
72 SPD800,
73 SPD900,
74 SPD1000,
75 SPD900,
76 SPD800,
77 SPD600,
78 SPD400,
79 };
80
81 static struct pll_init_data main_pll_config[MAX_SYSCLK][NUM_SPDS] = {
82 [SYSCLK_19MHz] = {
83 [SPD400] = {MAIN_PLL, 125, 3, 2},
84 [SPD600] = {MAIN_PLL, 125, 2, 2},
85 [SPD800] = {MAIN_PLL, 250, 3, 2},
86 [SPD900] = {MAIN_PLL, 187, 2, 2},
87 [SPD1000] = {MAIN_PLL, 104, 1, 2},
88 },
89 [SYSCLK_24MHz] = {
90 [SPD400] = {MAIN_PLL, 100, 3, 2},
91 [SPD600] = {MAIN_PLL, 300, 6, 2},
92 [SPD800] = {MAIN_PLL, 200, 3, 2},
93 [SPD900] = {MAIN_PLL, 75, 1, 2},
94 [SPD1000] = {MAIN_PLL, 250, 3, 2},
95 },
96 [SYSCLK_25MHz] = {
97 [SPD400] = {MAIN_PLL, 32, 1, 2},
98 [SPD600] = {MAIN_PLL, 48, 1, 2},
99 [SPD800] = {MAIN_PLL, 64, 1, 2},
100 [SPD900] = {MAIN_PLL, 72, 1, 2},
101 [SPD1000] = {MAIN_PLL, 80, 1, 2},
102 },
103 [SYSCLK_26MHz] = {
104 [SPD400] = {MAIN_PLL, 400, 13, 2},
105 [SPD600] = {MAIN_PLL, 230, 5, 2},
106 [SPD800] = {MAIN_PLL, 123, 2, 2},
107 [SPD900] = {MAIN_PLL, 69, 1, 2},
108 [SPD1000] = {MAIN_PLL, 384, 5, 2},
109 },
110 };
111
112 static struct pll_init_data tetris_pll_config[MAX_SYSCLK][NUM_SPDS] = {
113 [SYSCLK_19MHz] = {
114 [SPD200] = {TETRIS_PLL, 625, 6, 10},
115 [SPD400] = {TETRIS_PLL, 125, 1, 6},
116 [SPD600] = {TETRIS_PLL, 125, 1, 4},
117 [SPD800] = {TETRIS_PLL, 333, 2, 4},
118 [SPD900] = {TETRIS_PLL, 187, 2, 2},
119 [SPD1000] = {TETRIS_PLL, 104, 1, 2},
120 },
121 [SYSCLK_24MHz] = {
122 [SPD200] = {TETRIS_PLL, 250, 3, 10},
123 [SPD400] = {TETRIS_PLL, 100, 1, 6},
124 [SPD600] = {TETRIS_PLL, 100, 1, 4},
125 [SPD800] = {TETRIS_PLL, 400, 3, 4},
126 [SPD900] = {TETRIS_PLL, 75, 1, 2},
127 [SPD1000] = {TETRIS_PLL, 250, 3, 2},
128 },
129 [SYSCLK_25MHz] = {
130 [SPD200] = {TETRIS_PLL, 80, 1, 10},
131 [SPD400] = {TETRIS_PLL, 96, 1, 6},
132 [SPD600] = {TETRIS_PLL, 96, 1, 4},
133 [SPD800] = {TETRIS_PLL, 128, 1, 4},
134 [SPD900] = {TETRIS_PLL, 72, 1, 2},
135 [SPD1000] = {TETRIS_PLL, 80, 1, 2},
136 },
137 [SYSCLK_26MHz] = {
138 [SPD200] = {TETRIS_PLL, 307, 4, 10},
139 [SPD400] = {TETRIS_PLL, 369, 4, 6},
140 [SPD600] = {TETRIS_PLL, 369, 4, 4},
141 [SPD800] = {TETRIS_PLL, 123, 1, 4},
142 [SPD900] = {TETRIS_PLL, 69, 1, 2},
143 [SPD1000] = {TETRIS_PLL, 384, 5, 2},
144 },
145 };
146
147 static struct pll_init_data uart_pll_config[MAX_SYSCLK] = {
148 [SYSCLK_19MHz] = {UART_PLL, 160, 1, 8},
149 [SYSCLK_24MHz] = {UART_PLL, 128, 1, 8},
150 [SYSCLK_25MHz] = {UART_PLL, 768, 5, 10},
151 [SYSCLK_26MHz] = {UART_PLL, 384, 13, 2},
152 };
153
154 static struct pll_init_data nss_pll_config[MAX_SYSCLK] = {
155 [SYSCLK_19MHz] = {NSS_PLL, 625, 6, 2},
156 [SYSCLK_24MHz] = {NSS_PLL, 250, 3, 2},
157 [SYSCLK_25MHz] = {NSS_PLL, 80, 1, 2},
158 [SYSCLK_26MHz] = {NSS_PLL, 1000, 13, 2},
159 };
160
161 static struct pll_init_data ddr3_pll_config_800[MAX_SYSCLK] = {
162 [SYSCLK_19MHz] = {DDR3A_PLL, 167, 1, 16},
163 [SYSCLK_24MHz] = {DDR3A_PLL, 133, 1, 16},
164 [SYSCLK_25MHz] = {DDR3A_PLL, 128, 1, 16},
165 [SYSCLK_26MHz] = {DDR3A_PLL, 123, 1, 16},
166 };
167
168 static struct pll_init_data ddr3_pll_config_1066[MAX_SYSCLK] = {
169 [SYSCLK_19MHz] = {DDR3A_PLL, 194, 1, 14},
170 [SYSCLK_24MHz] = {DDR3A_PLL, 156, 1, 14},
171 [SYSCLK_25MHz] = {DDR3A_PLL, 149, 1, 14},
172 [SYSCLK_26MHz] = {DDR3A_PLL, 144, 1, 14},
173 };
174
get_pll_init_data(int pll)175 struct pll_init_data *get_pll_init_data(int pll)
176 {
177 int speed;
178 struct pll_init_data *data = NULL;
179 u8 sysclk_index = get_sysclk_index();
180
181 switch (pll) {
182 case MAIN_PLL:
183 speed = get_max_dev_speed(dev_speeds);
184 data = &main_pll_config[sysclk_index][speed];
185 break;
186 case TETRIS_PLL:
187 speed = get_max_arm_speed(speeds);
188 data = &tetris_pll_config[sysclk_index][speed];
189 break;
190 case NSS_PLL:
191 data = &nss_pll_config[sysclk_index];
192 break;
193 case UART_PLL:
194 data = &uart_pll_config[sysclk_index];
195 break;
196 case DDR3_PLL:
197 if (cpu_revision() & CPU_66AK2G1x) {
198 speed = get_max_arm_speed(speeds);
199 if (speed == SPD1000)
200 data = &ddr3_pll_config_1066[sysclk_index];
201 else
202 data = &ddr3_pll_config_800[sysclk_index];
203 } else {
204 data = &ddr3_pll_config_800[sysclk_index];
205 }
206 break;
207 default:
208 data = NULL;
209 }
210
211 return data;
212 }
213
214 s16 divn_val[16] = {
215 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
216 };
217
218 #if defined(CONFIG_MMC)
board_mmc_init(bd_t * bis)219 int board_mmc_init(bd_t *bis)
220 {
221 if (psc_enable_module(KS2_LPSC_MMC)) {
222 printf("%s module enabled failed\n", __func__);
223 return -1;
224 }
225
226 if (board_is_k2g_gp() || board_is_k2g_g1())
227 omap_mmc_init(0, 0, 0, -1, -1);
228
229 omap_mmc_init(1, 0, 0, -1, -1);
230 return 0;
231 }
232 #endif
233
234 #if defined(CONFIG_MULTI_DTB_FIT)
board_fit_config_name_match(const char * name)235 int board_fit_config_name_match(const char *name)
236 {
237 bool eeprom_read = board_ti_was_eeprom_read();
238
239 if (!strcmp(name, "keystone-k2g-generic") && !eeprom_read)
240 return 0;
241 else if (!strcmp(name, "keystone-k2g-evm") &&
242 (board_ti_is("66AK2GGP") || board_ti_is("66AK2GG1")))
243 return 0;
244 else if (!strcmp(name, "keystone-k2g-ice") && board_ti_is("66AK2GIC"))
245 return 0;
246 else
247 return -1;
248 }
249 #endif
250
251 #if defined(CONFIG_DTB_RESELECT)
k2g_alt_board_detect(void)252 static int k2g_alt_board_detect(void)
253 {
254 #ifndef CONFIG_DM_I2C
255 int rc;
256
257 rc = i2c_set_bus_num(1);
258 if (rc)
259 return rc;
260
261 rc = i2c_probe(K2G_GP_AUDIO_CODEC_ADDRESS);
262 if (rc)
263 return rc;
264 #else
265 struct udevice *bus, *dev;
266 int rc;
267
268 rc = uclass_get_device_by_seq(UCLASS_I2C, 1, &bus);
269 if (rc)
270 return rc;
271 rc = dm_i2c_probe(bus, K2G_GP_AUDIO_CODEC_ADDRESS, 0, &dev);
272 if (rc)
273 return rc;
274 #endif
275 ti_i2c_eeprom_am_set("66AK2GGP", "1.0X");
276
277 return 0;
278 }
279
k2g_reset_mux_config(void)280 static void k2g_reset_mux_config(void)
281 {
282 /* Unlock the reset mux register */
283 clrbits_le32(KS2_RSTMUX8, RSTMUX_LOCK8_MASK);
284
285 /* Configure BOOTCFG_RSTMUX8 for WDT event to cause a device reset */
286 clrsetbits_le32(KS2_RSTMUX8, RSTMUX_OMODE8_MASK,
287 RSTMUX_OMODE8_DEV_RESET << RSTMUX_OMODE8_SHIFT);
288
289 /* lock the reset mux register to prevent any spurious writes. */
290 setbits_le32(KS2_RSTMUX8, RSTMUX_LOCK8_MASK);
291 }
292
embedded_dtb_select(void)293 int embedded_dtb_select(void)
294 {
295 int rc;
296 rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS,
297 CONFIG_EEPROM_CHIP_ADDRESS);
298 if (rc) {
299 rc = k2g_alt_board_detect();
300 if (rc) {
301 printf("Unable to do board detection\n");
302 return -1;
303 }
304 }
305
306 fdtdec_setup();
307
308 k2g_mux_config();
309
310 k2g_reset_mux_config();
311
312 if (board_is_k2g_gp() || board_is_k2g_g1()) {
313 /* deassert FLASH_HOLD */
314 clrbits_le32(K2G_GPIO1_BANK2_BASE + K2G_GPIO_DIR_OFFSET,
315 BIT(9));
316 setbits_le32(K2G_GPIO1_BANK2_BASE + K2G_GPIO_SETDATA_OFFSET,
317 BIT(9));
318 }
319
320 return 0;
321 }
322 #endif
323
324 #ifdef CONFIG_BOARD_LATE_INIT
board_late_init(void)325 int board_late_init(void)
326 {
327 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_TI_I2C_BOARD_DETECT)
328 int rc;
329
330 rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS,
331 CONFIG_EEPROM_CHIP_ADDRESS);
332 if (rc)
333 printf("ti_i2c_eeprom_init failed %d\n", rc);
334
335 board_ti_set_ethaddr(1);
336 #endif
337
338 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
339 if (board_is_k2g_gp())
340 env_set("board_name", "66AK2GGP\0");
341 else if (board_is_k2g_g1())
342 env_set("board_name", "66AK2GG1\0");
343 else if (board_is_k2g_ice())
344 env_set("board_name", "66AK2GIC\0");
345 #endif
346 return 0;
347 }
348 #endif
349
350 #ifdef CONFIG_BOARD_EARLY_INIT_F
board_early_init_f(void)351 int board_early_init_f(void)
352 {
353 init_plls();
354
355 k2g_mux_config();
356
357 return 0;
358 }
359 #endif
360
361 #ifdef CONFIG_SPL_BUILD
spl_init_keystone_plls(void)362 void spl_init_keystone_plls(void)
363 {
364 init_plls();
365 }
366 #endif
367
368 #ifdef CONFIG_TI_SECURE_DEVICE
board_pmmc_image_process(ulong pmmc_image,size_t pmmc_size)369 void board_pmmc_image_process(ulong pmmc_image, size_t pmmc_size)
370 {
371 int id = env_get_ulong("dev_pmmc", 10, 0);
372 int ret;
373
374 if (!rproc_is_initialized())
375 rproc_init();
376
377 ret = rproc_load(id, pmmc_image, pmmc_size);
378 printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
379 id, pmmc_image, pmmc_size, ret ? " Failed!" : " Success!");
380
381 if (!ret)
382 rproc_start(id);
383 }
384
385 U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_PMMC, board_pmmc_image_process);
386 #endif
387