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ks2_evm: Add EEPROM based board detection helper functions
[people/ms/u-boot.git] / board / ti / ks2_evm / board_k2g.c
CommitLineData
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1/*
2 * K2G EVM : Board initialization
3 *
4 * (C) Copyright 2015
5 * Texas Instruments Incorporated, <www.ti.com>
6 *
7 * SPDX-License-Identifier: GPL-2.0+
8 */
9#include <common.h>
10#include <asm/arch/clock.h>
91266ccb 11#include <asm/ti-common/keystone_net.h>
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12#include <asm/arch/psc_defs.h>
13#include <asm/arch/mmc_host_def.h>
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14#include <fdtdec.h>
15#include <i2c.h>
dd78b8cf 16#include "mux-k2g.h"
752a8311 17#include "../common/board_detect.h"
bda920c6 18
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19#define K2G_GP_AUDIO_CODEC_ADDRESS 0x1B
20
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21const unsigned int sysclk_array[MAX_SYSCLK] = {
22 19200000,
23 24000000,
24 25000000,
25 26000000,
26};
27
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28unsigned 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}
e6d71e1c 56
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57static int arm_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
70static int dev_speeds[DEVSPEED_NUMSPDS] = {
71 SPD600,
72 SPD800,
73 SPD900,
74 SPD1000,
75 SPD900,
76 SPD800,
77 SPD600,
78 SPD400,
79};
80
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81static 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},
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86 [SPD900] = {MAIN_PLL, 187, 2, 2},
87 [SPD1000] = {MAIN_PLL, 104, 1, 2},
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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},
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93 [SPD900] = {MAIN_PLL, 75, 1, 2},
94 [SPD1000] = {MAIN_PLL, 250, 3, 2},
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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},
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100 [SPD900] = {MAIN_PLL, 72, 1, 2},
101 [SPD1000] = {MAIN_PLL, 80, 1, 2},
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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},
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107 [SPD900] = {MAIN_PLL, 69, 1, 2},
108 [SPD1000] = {MAIN_PLL, 384, 5, 2},
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109 },
110};
111
112static 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 },
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145};
146
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147static 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},
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152};
153
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154static 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
161static struct pll_init_data ddr3_pll_config[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};
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167
168struct pll_init_data *get_pll_init_data(int pll)
169{
ef76ebb1 170 int speed;
bda920c6 171 struct pll_init_data *data = NULL;
c5f177de 172 u8 sysclk_index = get_sysclk_index();
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173
174 switch (pll) {
175 case MAIN_PLL:
ef76ebb1 176 speed = get_max_dev_speed(dev_speeds);
c5f177de 177 data = &main_pll_config[sysclk_index][speed];
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178 break;
179 case TETRIS_PLL:
ef76ebb1 180 speed = get_max_arm_speed(arm_speeds);
c5f177de 181 data = &tetris_pll_config[sysclk_index][speed];
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182 break;
183 case NSS_PLL:
c5f177de 184 data = &nss_pll_config[sysclk_index];
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185 break;
186 case UART_PLL:
c5f177de 187 data = &uart_pll_config[sysclk_index];
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188 break;
189 case DDR3_PLL:
c5f177de 190 data = &ddr3_pll_config[sysclk_index];
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191 break;
192 default:
193 data = NULL;
194 }
195
196 return data;
197}
198
199s16 divn_val[16] = {
200 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
201};
202
4aa2ba3a 203#if defined(CONFIG_MMC)
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204int board_mmc_init(bd_t *bis)
205{
206 if (psc_enable_module(KS2_LPSC_MMC)) {
207 printf("%s module enabled failed\n", __func__);
208 return -1;
209 }
210
211 omap_mmc_init(0, 0, 0, -1, -1);
212 omap_mmc_init(1, 0, 0, -1, -1);
213 return 0;
214}
215#endif
216
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217#if defined(CONFIG_FIT_EMBED)
218int board_fit_config_name_match(const char *name)
219{
220 bool eeprom_read = board_ti_was_eeprom_read();
221
222 if (!strcmp(name, "keystone-k2g-generic") && !eeprom_read)
223 return 0;
224 else if (!strcmp(name, "keystone-k2g-evm") && board_ti_is("66AK2GGP"))
225 return 0;
226 else
227 return -1;
228}
229#endif
230
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231#if defined(CONFIG_DTB_RESELECT)
232static int k2g_alt_board_detect(void)
233{
234 int rc;
235
236 rc = i2c_set_bus_num(1);
237 if (rc)
238 return rc;
239
240 rc = i2c_probe(K2G_GP_AUDIO_CODEC_ADDRESS);
241 if (rc)
242 return rc;
243
244 ti_i2c_eeprom_am_set("66AK2GGP", "1.0X");
245
246 return 0;
247}
248
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249static void k2g_reset_mux_config(void)
250{
251 /* Unlock the reset mux register */
252 clrbits_le32(KS2_RSTMUX8, RSTMUX_LOCK8_MASK);
253
254 /* Configure BOOTCFG_RSTMUX8 for WDT event to cause a device reset */
255 clrsetbits_le32(KS2_RSTMUX8, RSTMUX_OMODE8_MASK,
256 RSTMUX_OMODE8_DEV_RESET << RSTMUX_OMODE8_SHIFT);
257
258 /* lock the reset mux register to prevent any spurious writes. */
259 setbits_le32(KS2_RSTMUX8, RSTMUX_LOCK8_MASK);
260}
261
e820f523 262int embedded_dtb_select(void)
bda920c6 263{
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264 int rc;
265 rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS,
266 CONFIG_EEPROM_CHIP_ADDRESS);
267 if (rc) {
268 rc = k2g_alt_board_detect();
269 if (rc) {
270 printf("Unable to do board detection\n");
271 return -1;
272 }
273 }
bda920c6 274
e820f523 275 fdtdec_setup();
dd78b8cf 276
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277 k2g_reset_mux_config();
278
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279 /* deassert FLASH_HOLD */
280 clrbits_le32(K2G_GPIO1_BANK2_BASE + K2G_GPIO_DIR_OFFSET,
281 BIT(9));
282 setbits_le32(K2G_GPIO1_BANK2_BASE + K2G_GPIO_SETDATA_OFFSET,
283 BIT(9));
284
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285 return 0;
286}
287#endif
288
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289#ifdef CONFIG_BOARD_LATE_INIT
290int board_late_init(void)
291{
292#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_TI_I2C_BOARD_DETECT)
293 int rc;
294
295 rc = ti_i2c_eeprom_am_get(CONFIG_EEPROM_BUS_ADDRESS,
296 CONFIG_EEPROM_CHIP_ADDRESS);
297 if (rc)
298 printf("ti_i2c_eeprom_init failed %d\n", rc);
299
300 board_ti_set_ethaddr(1);
301#endif
302
303 return 0;
304}
305#endif
306
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307#ifdef CONFIG_BOARD_EARLY_INIT_F
308int board_early_init_f(void)
309{
310 init_plls();
311
312 k2g_mux_config();
313
314 return 0;
315}
316#endif
317
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318#ifdef CONFIG_SPL_BUILD
319void spl_init_keystone_plls(void)
320{
321 init_plls();
322}
323#endif
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324
325#ifdef CONFIG_DRIVER_TI_KEYSTONE_NET
326struct eth_priv_t eth_priv_cfg[] = {
327 {
328 .int_name = "K2G_EMAC",
329 .rx_flow = 0,
330 .phy_addr = 0,
331 .slave_port = 1,
332 .sgmii_link_type = SGMII_LINK_MAC_PHY,
333 .phy_if = PHY_INTERFACE_MODE_RGMII,
334 },
335};
336
337int get_num_eth_ports(void)
338{
339 return sizeof(eth_priv_cfg) / sizeof(struct eth_priv_t);
340}
341#endif