1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) Stefano Babic <sbabic@denx.de>
4 *
5 * Based on other i.MX6 boards
6 */
7
8 #include <asm/arch/clock.h>
9 #include <asm/arch/imx-regs.h>
10 #include <asm/arch/iomux.h>
11 #include <asm/arch/mx6-pins.h>
12 #include <linux/errno.h>
13 #include <asm/gpio.h>
14 #include <asm/mach-imx/mxc_i2c.h>
15 #include <asm/mach-imx/iomux-v3.h>
16 #include <asm/mach-imx/boot_mode.h>
17 #include <asm/mach-imx/video.h>
18 #include <mmc.h>
19 #include <fsl_esdhc.h>
20 #include <miiphy.h>
21 #include <netdev.h>
22 #include <asm/arch/mxc_hdmi.h>
23 #include <asm/arch/crm_regs.h>
24 #include <asm/io.h>
25 #include <asm/arch/sys_proto.h>
26 #include <i2c.h>
27 #include <input.h>
28 #include <power/pmic.h>
29 #include <power/pfuze100_pmic.h>
30 #include <asm/arch/mx6-ddr.h>
31
32 DECLARE_GLOBAL_DATA_PTR;
33
34 #define OPEN_PAD_CTRL (PAD_CTL_ODE | PAD_CTL_DSE_DISABLE | (0 << 12))
35
36 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
37 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
38 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
39
40 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
41 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
42 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
43
44 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
45 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
46
47 #define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
48 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
49
50 #define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
51 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
52
53 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
54 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
55
56 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
57 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
58 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
59
60 #define I2C_PMIC 1
61
62 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
63
64 #define ETH_PHY_RESET IMX_GPIO_NR(2, 4)
65
dram_init(void)66 int dram_init(void)
67 {
68 gd->ram_size = imx_ddr_size();
69
70 return 0;
71 }
72
73 iomux_v3_cfg_t const uart2_pads[] = {
74 MX6_PAD_SD3_DAT5__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
75 MX6_PAD_SD3_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
76 };
77
setup_iomux_uart(void)78 static void setup_iomux_uart(void)
79 {
80 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
81 }
82
83 #ifdef CONFIG_TARGET_ZC5202
84 iomux_v3_cfg_t const enet_pads[] = {
85 MX6_PAD_GPIO_18__ENET_RX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
86 MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
87 MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
88 MX6_PAD_KEY_COL2__ENET_RX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
89 MX6_PAD_KEY_COL0__ENET_RX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
90 MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
91 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
92 MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
93 MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
94 MX6_PAD_GPIO_19__ENET_TX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
95 MX6_PAD_KEY_ROW2__ENET_TX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
96 MX6_PAD_KEY_ROW0__ENET_TX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
97 MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
98 MX6_PAD_ENET_RX_ER__ENET_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
99 /* Switch Reset */
100 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
101 /* Switch Interrupt */
102 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
103 /* use CRS and COL pads as GPIOs */
104 MX6_PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(OPEN_PAD_CTRL),
105 MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(OPEN_PAD_CTRL),
106
107 };
108
109 #define BOARD_NAME "EL6x-ZC5202"
110 #else
111 iomux_v3_cfg_t const enet_pads[] = {
112 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
113 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
114 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
115 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
116 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
117 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
118 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
119 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
120 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
121 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
122 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
123 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
124 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
125 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
126 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
127 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
128 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
129 };
130 #define BOARD_NAME "EL6x-ZC5601"
131 #endif
132
setup_iomux_enet(void)133 static void setup_iomux_enet(void)
134 {
135 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
136
137 #ifdef CONFIG_TARGET_ZC5202
138 /* set CRS and COL to input */
139 gpio_direction_input(IMX_GPIO_NR(4, 9));
140 gpio_direction_input(IMX_GPIO_NR(4, 12));
141
142 /* Reset Switch */
143 gpio_direction_output(ETH_PHY_RESET , 0);
144 mdelay(2);
145 gpio_set_value(ETH_PHY_RESET, 1);
146 #endif
147 }
148
board_phy_config(struct phy_device * phydev)149 int board_phy_config(struct phy_device *phydev)
150 {
151 if (phydev->drv->config)
152 phydev->drv->config(phydev);
153
154 return 0;
155 }
156
157 #ifdef CONFIG_MXC_SPI
158 #ifdef CONFIG_TARGET_ZC5202
159 iomux_v3_cfg_t const ecspi1_pads[] = {
160 MX6_PAD_DISP0_DAT20__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
161 MX6_PAD_DISP0_DAT21__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
162 MX6_PAD_DISP0_DAT22__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
163 MX6_PAD_DISP0_DAT23__GPIO5_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL),
164 MX6_PAD_DISP0_DAT15__GPIO5_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
165 };
166
167 iomux_v3_cfg_t const ecspi3_pads[] = {
168 MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
169 MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
170 MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
171 MX6_PAD_DISP0_DAT7__GPIO4_IO28 | MUX_PAD_CTRL(SPI_PAD_CTRL),
172 MX6_PAD_DISP0_DAT8__GPIO4_IO29 | MUX_PAD_CTRL(SPI_PAD_CTRL),
173 MX6_PAD_DISP0_DAT9__GPIO4_IO30 | MUX_PAD_CTRL(SPI_PAD_CTRL),
174 MX6_PAD_DISP0_DAT10__GPIO4_IO31 | MUX_PAD_CTRL(SPI_PAD_CTRL),
175 };
176 #endif
177
178 iomux_v3_cfg_t const ecspi4_pads[] = {
179 MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
180 MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
181 MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
182 MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL),
183 };
184
board_spi_cs_gpio(unsigned bus,unsigned cs)185 int board_spi_cs_gpio(unsigned bus, unsigned cs)
186 {
187 return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
188 ? (IMX_GPIO_NR(3, 20)) : -1;
189 }
190
setup_spi(void)191 static void setup_spi(void)
192 {
193 #ifdef CONFIG_TARGET_ZC5202
194 gpio_request(IMX_GPIO_NR(5, 17), "spi_cs0");
195 gpio_request(IMX_GPIO_NR(5, 9), "spi_cs1");
196 gpio_direction_output(IMX_GPIO_NR(5, 17), 1);
197 gpio_direction_output(IMX_GPIO_NR(5, 9), 1);
198 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
199 #endif
200
201 gpio_request(IMX_GPIO_NR(3, 20), "spi4_cs0");
202 gpio_direction_output(IMX_GPIO_NR(3, 20), 1);
203 imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
204
205 enable_spi_clk(true, 3);
206 }
207 #endif
208
209 static struct i2c_pads_info i2c_pad_info1 = {
210 .scl = {
211 .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | I2C_PAD,
212 .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | I2C_PAD,
213 .gp = IMX_GPIO_NR(2, 30)
214 },
215 .sda = {
216 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
217 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
218 .gp = IMX_GPIO_NR(4, 13)
219 }
220 };
221
222 static struct i2c_pads_info i2c_pad_info2 = {
223 .scl = {
224 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD,
225 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD,
226 .gp = IMX_GPIO_NR(1, 5)
227 },
228 .sda = {
229 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | I2C_PAD,
230 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | I2C_PAD,
231 .gp = IMX_GPIO_NR(7, 11)
232 }
233 };
234
235 iomux_v3_cfg_t const usdhc2_pads[] = {
236 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
237 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
238 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
239 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
240 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
241 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
242 MX6_PAD_GPIO_4__SD2_CD_B | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
243 };
244
245 iomux_v3_cfg_t const usdhc4_pads[] = {
246 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
247 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
248 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
249 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
250 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
251 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
252 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
253 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
254 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
255 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
256 };
257
258 #ifdef CONFIG_FSL_ESDHC
259 struct fsl_esdhc_cfg usdhc_cfg[2] = {
260 {USDHC2_BASE_ADDR},
261 {USDHC4_BASE_ADDR},
262 };
263
264 #define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
265
board_mmc_getcd(struct mmc * mmc)266 int board_mmc_getcd(struct mmc *mmc)
267 {
268 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
269 int ret = 0;
270
271 switch (cfg->esdhc_base) {
272 case USDHC2_BASE_ADDR:
273 ret = !gpio_get_value(USDHC2_CD_GPIO);
274 break;
275 case USDHC4_BASE_ADDR:
276 ret = 1; /* eMMC/uSDHC4 is always present */
277 break;
278 }
279
280 return ret;
281 }
282
board_mmc_init(bd_t * bis)283 int board_mmc_init(bd_t *bis)
284 {
285 #ifndef CONFIG_SPL_BUILD
286 int ret;
287 int i;
288
289 /*
290 * According to the board_mmc_init() the following map is done:
291 * (U-boot device node) (Physical Port)
292 * mmc0 SD2
293 * mmc1 SD3
294 * mmc2 eMMC
295 */
296 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
297 switch (i) {
298 case 0:
299 imx_iomux_v3_setup_multiple_pads(
300 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
301 gpio_direction_input(USDHC2_CD_GPIO);
302 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
303 break;
304 case 1:
305 imx_iomux_v3_setup_multiple_pads(
306 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
307 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
308 break;
309 default:
310 printf("Warning: you configured more USDHC controllers"
311 "(%d) then supported by the board (%d)\n",
312 i + 1, CONFIG_SYS_FSL_USDHC_NUM);
313 return -EINVAL;
314 }
315
316 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
317 if (ret)
318 return ret;
319 }
320
321 return 0;
322 #else
323 struct src *psrc = (struct src *)SRC_BASE_ADDR;
324 unsigned reg = readl(&psrc->sbmr1) >> 11;
325
326 /*
327 * Upon reading BOOT_CFG register the following map is done:
328 * Bit 11 and 12 of BOOT_CFG register can determine the current
329 * mmc port
330 * 0x1 SD1
331 * 0x2 SD2
332 * 0x3 SD4
333 */
334
335 switch (reg & 0x3) {
336 case 0x1:
337 imx_iomux_v3_setup_multiple_pads(
338 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
339 usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
340 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
341 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
342 break;
343 case 0x3:
344 imx_iomux_v3_setup_multiple_pads(
345 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
346 usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
347 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
348 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
349 break;
350 }
351
352 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
353 #endif
354
355 }
356 #endif
357
358
359 /*
360 * Do not overwrite the console
361 * Use always serial for U-Boot console
362 */
overwrite_console(void)363 int overwrite_console(void)
364 {
365 return 1;
366 }
367
board_eth_init(bd_t * bis)368 int board_eth_init(bd_t *bis)
369 {
370 setup_iomux_enet();
371 enable_enet_clk(1);
372
373 return cpu_eth_init(bis);
374 }
375
board_early_init_f(void)376 int board_early_init_f(void)
377 {
378
379 setup_iomux_uart();
380 setup_spi();
381
382 return 0;
383 }
384
board_init(void)385 int board_init(void)
386 {
387 /* address of boot parameters */
388 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
389
390 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
391 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
392
393 return 0;
394 }
395
power_init_board(void)396 int power_init_board(void)
397 {
398 struct pmic *p;
399 int ret;
400 unsigned int reg;
401
402 ret = power_pfuze100_init(I2C_PMIC);
403 if (ret)
404 return ret;
405
406 p = pmic_get("PFUZE100");
407 ret = pmic_probe(p);
408 if (ret)
409 return ret;
410
411 pmic_reg_read(p, PFUZE100_DEVICEID, ®);
412 printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
413
414 /* Increase VGEN3 from 2.5 to 2.8V */
415 pmic_reg_read(p, PFUZE100_VGEN3VOL, ®);
416 reg &= ~LDO_VOL_MASK;
417 reg |= LDOB_2_80V;
418 pmic_reg_write(p, PFUZE100_VGEN3VOL, reg);
419
420 /* Increase VGEN5 from 2.8 to 3V */
421 pmic_reg_read(p, PFUZE100_VGEN5VOL, ®);
422 reg &= ~LDO_VOL_MASK;
423 reg |= LDOB_3_00V;
424 pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
425
426 /* Set SW1AB stanby volage to 0.975V */
427 pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
428 reg &= ~SW1x_STBY_MASK;
429 reg |= SW1x_0_975V;
430 pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
431
432 /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
433 pmic_reg_read(p, PFUZE100_SW1ABCONF, ®);
434 reg &= ~SW1xCONF_DVSSPEED_MASK;
435 reg |= SW1xCONF_DVSSPEED_4US;
436 pmic_reg_write(p, PFUZE100_SW1ABCONF, reg);
437
438 /* Set SW1C standby voltage to 0.975V */
439 pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
440 reg &= ~SW1x_STBY_MASK;
441 reg |= SW1x_0_975V;
442 pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
443
444 /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
445 pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
446 reg &= ~SW1xCONF_DVSSPEED_MASK;
447 reg |= SW1xCONF_DVSSPEED_4US;
448 pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
449
450 return 0;
451 }
452
453 #ifdef CONFIG_CMD_BMODE
454 static const struct boot_mode board_boot_modes[] = {
455 /* 4 bit bus width */
456 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
457 /* 8 bit bus width */
458 {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
459 {NULL, 0},
460 };
461 #endif
462
board_late_init(void)463 int board_late_init(void)
464 {
465 #ifdef CONFIG_CMD_BMODE
466 add_board_boot_modes(board_boot_modes);
467 #endif
468
469 env_set("board_name", BOARD_NAME);
470 return 0;
471 }
472
checkboard(void)473 int checkboard(void)
474 {
475 puts("Board: ");
476 puts(BOARD_NAME "\n");
477
478 return 0;
479 }
480
481 #ifdef CONFIG_SPL_BUILD
482 #include <spl.h>
483 #include <linux/libfdt.h>
484
485 const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
486 .dram_sdclk_0 = 0x00020030,
487 .dram_sdclk_1 = 0x00020030,
488 .dram_cas = 0x00020030,
489 .dram_ras = 0x00020030,
490 .dram_reset = 0x00020030,
491 .dram_sdcke0 = 0x00003000,
492 .dram_sdcke1 = 0x00003000,
493 .dram_sdba2 = 0x00000000,
494 .dram_sdodt0 = 0x00003030,
495 .dram_sdodt1 = 0x00003030,
496 .dram_sdqs0 = 0x00000030,
497 .dram_sdqs1 = 0x00000030,
498 .dram_sdqs2 = 0x00000030,
499 .dram_sdqs3 = 0x00000030,
500 .dram_sdqs4 = 0x00000030,
501 .dram_sdqs5 = 0x00000030,
502 .dram_sdqs6 = 0x00000030,
503 .dram_sdqs7 = 0x00000030,
504 .dram_dqm0 = 0x00020030,
505 .dram_dqm1 = 0x00020030,
506 .dram_dqm2 = 0x00020030,
507 .dram_dqm3 = 0x00020030,
508 .dram_dqm4 = 0x00020030,
509 .dram_dqm5 = 0x00020030,
510 .dram_dqm6 = 0x00020030,
511 .dram_dqm7 = 0x00020030,
512 };
513
514 const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
515 .grp_ddr_type = 0x000C0000,
516 .grp_ddrmode_ctl = 0x00020000,
517 .grp_ddrpke = 0x00000000,
518 .grp_addds = 0x00000030,
519 .grp_ctlds = 0x00000030,
520 .grp_ddrmode = 0x00020000,
521 .grp_b0ds = 0x00000030,
522 .grp_b1ds = 0x00000030,
523 .grp_b2ds = 0x00000030,
524 .grp_b3ds = 0x00000030,
525 .grp_b4ds = 0x00000030,
526 .grp_b5ds = 0x00000030,
527 .grp_b6ds = 0x00000030,
528 .grp_b7ds = 0x00000030,
529 };
530
531 const struct mx6_mmdc_calibration mx6_mmcd_calib = {
532 .p0_mpwldectrl0 = 0x001F001F,
533 .p0_mpwldectrl1 = 0x001F001F,
534 .p1_mpwldectrl0 = 0x00440044,
535 .p1_mpwldectrl1 = 0x00440044,
536 .p0_mpdgctrl0 = 0x434B0350,
537 .p0_mpdgctrl1 = 0x034C0359,
538 .p1_mpdgctrl0 = 0x434B0350,
539 .p1_mpdgctrl1 = 0x03650348,
540 .p0_mprddlctl = 0x4436383B,
541 .p1_mprddlctl = 0x39393341,
542 .p0_mpwrdlctl = 0x35373933,
543 .p1_mpwrdlctl = 0x48254A36,
544 };
545
546 /* MT41K128M16JT-125 */
547 static struct mx6_ddr3_cfg mem_ddr = {
548 .mem_speed = 1600,
549 .density = 2,
550 .width = 16,
551 .banks = 8,
552 .rowaddr = 14,
553 .coladdr = 10,
554 .pagesz = 2,
555 .trcd = 1375,
556 .trcmin = 4875,
557 .trasmin = 3500,
558 };
559
ccgr_init(void)560 static void ccgr_init(void)
561 {
562 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
563
564 writel(0x00C03F3F, &ccm->CCGR0);
565 writel(0x0030FC03, &ccm->CCGR1);
566 writel(0x0FFFC000, &ccm->CCGR2);
567 writel(0x3FF00000, &ccm->CCGR3);
568 writel(0x00FFF300, &ccm->CCGR4);
569 writel(0x0F0000C3, &ccm->CCGR5);
570 writel(0x000003FF, &ccm->CCGR6);
571 }
572
573 /*
574 * This section requires the differentiation between iMX6 Sabre boards, but
575 * for now, it will configure only for the mx6q variant.
576 */
spl_dram_init(void)577 static void spl_dram_init(void)
578 {
579 struct mx6_ddr_sysinfo sysinfo = {
580 /* width of data bus:0=16,1=32,2=64 */
581 .dsize = 2,
582 /* config for full 4GB range so that get_mem_size() works */
583 .cs_density = 32, /* 32Gb per CS */
584 /* single chip select */
585 .ncs = 1,
586 .cs1_mirror = 0,
587 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
588 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */
589 .walat = 1, /* Write additional latency */
590 .ralat = 5, /* Read additional latency */
591 .mif3_mode = 3, /* Command prediction working mode */
592 .bi_on = 1, /* Bank interleaving enabled */
593 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
594 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
595 .ddr_type = DDR_TYPE_DDR3,
596 .refsel = 1, /* Refresh cycles at 32KHz */
597 .refr = 7, /* 8 refresh commands per refresh cycle */
598 };
599
600 mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
601 mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
602 }
603
board_init_f(ulong dummy)604 void board_init_f(ulong dummy)
605 {
606 /* setup AIPS and disable watchdog */
607 arch_cpu_init();
608
609 ccgr_init();
610 gpr_init();
611
612 /* iomux and setup of i2c */
613 board_early_init_f();
614
615 /* setup GP timer */
616 timer_init();
617
618 /* UART clocks enabled and gd valid - init serial console */
619 preloader_console_init();
620
621 /* DDR initialization */
622 spl_dram_init();
623
624 /* Clear the BSS. */
625 memset(__bss_start, 0, __bss_end - __bss_start);
626
627 /* load/boot image from boot device */
628 board_init_r(NULL, 0);
629 }
630
631 #endif
632