1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) Stefano Babic <sbabic@denx.de>
5 * Based on other i.MX6 boards
9 #include <asm/arch/clock.h>
10 #include <asm/arch/imx-regs.h>
11 #include <asm/arch/iomux.h>
12 #include <asm/arch/mx6-pins.h>
14 #include <linux/errno.h>
16 #include <asm/mach-imx/mxc_i2c.h>
17 #include <asm/mach-imx/iomux-v3.h>
18 #include <asm/mach-imx/boot_mode.h>
19 #include <asm/mach-imx/video.h>
21 #include <fsl_esdhc_imx.h>
24 #include <asm/arch/mxc_hdmi.h>
25 #include <asm/arch/crm_regs.h>
27 #include <asm/arch/sys_proto.h>
30 #include <power/pmic.h>
31 #include <power/pfuze100_pmic.h>
32 #include <asm/arch/mx6-ddr.h>
34 DECLARE_GLOBAL_DATA_PTR;
36 #define OPEN_PAD_CTRL (PAD_CTL_ODE | PAD_CTL_DSE_DISABLE | (0 << 12))
38 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
39 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
40 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
42 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
43 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
44 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
46 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
47 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
49 #define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN | \
50 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
52 #define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
53 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
55 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
56 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
58 #define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
59 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
60 PAD_CTL_ODE | PAD_CTL_SRE_FAST)
64 #define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
66 #define ETH_PHY_RESET IMX_GPIO_NR(2, 4)
70 gd->ram_size = imx_ddr_size();
75 iomux_v3_cfg_t const uart2_pads[] = {
76 MX6_PAD_SD3_DAT5__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
77 MX6_PAD_SD3_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
80 static void setup_iomux_uart(void)
82 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
85 #ifdef CONFIG_TARGET_ZC5202
86 iomux_v3_cfg_t const enet_pads[] = {
87 MX6_PAD_GPIO_18__ENET_RX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
88 MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
89 MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
90 MX6_PAD_KEY_COL2__ENET_RX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
91 MX6_PAD_KEY_COL0__ENET_RX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
92 MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
93 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
94 MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
95 MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
96 MX6_PAD_GPIO_19__ENET_TX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
97 MX6_PAD_KEY_ROW2__ENET_TX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
98 MX6_PAD_KEY_ROW0__ENET_TX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
99 MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
100 MX6_PAD_ENET_RX_ER__ENET_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
102 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
103 /* Switch Interrupt */
104 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
105 /* use CRS and COL pads as GPIOs */
106 MX6_PAD_KEY_COL3__GPIO4_IO12 | MUX_PAD_CTRL(OPEN_PAD_CTRL),
107 MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(OPEN_PAD_CTRL),
111 #define BOARD_NAME "EL6x-ZC5202"
113 iomux_v3_cfg_t const enet_pads[] = {
114 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
115 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
116 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
117 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
118 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
119 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
120 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
121 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
122 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
123 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
124 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
125 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
126 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
127 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
128 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
129 MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
130 MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL),
132 #define BOARD_NAME "EL6x-ZC5601"
135 static void setup_iomux_enet(void)
137 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
139 #ifdef CONFIG_TARGET_ZC5202
140 /* set CRS and COL to input */
141 gpio_direction_input(IMX_GPIO_NR(4, 9));
142 gpio_direction_input(IMX_GPIO_NR(4, 12));
145 gpio_direction_output(ETH_PHY_RESET , 0);
147 gpio_set_value(ETH_PHY_RESET, 1);
151 int board_phy_config(struct phy_device *phydev)
153 if (phydev->drv->config)
154 phydev->drv->config(phydev);
159 #ifdef CONFIG_MXC_SPI
160 #ifdef CONFIG_TARGET_ZC5202
161 iomux_v3_cfg_t const ecspi1_pads[] = {
162 MX6_PAD_DISP0_DAT20__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
163 MX6_PAD_DISP0_DAT21__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
164 MX6_PAD_DISP0_DAT22__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
165 MX6_PAD_DISP0_DAT23__GPIO5_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL),
166 MX6_PAD_DISP0_DAT15__GPIO5_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
169 iomux_v3_cfg_t const ecspi3_pads[] = {
170 MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
171 MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
172 MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
173 MX6_PAD_DISP0_DAT7__GPIO4_IO28 | MUX_PAD_CTRL(SPI_PAD_CTRL),
174 MX6_PAD_DISP0_DAT8__GPIO4_IO29 | MUX_PAD_CTRL(SPI_PAD_CTRL),
175 MX6_PAD_DISP0_DAT9__GPIO4_IO30 | MUX_PAD_CTRL(SPI_PAD_CTRL),
176 MX6_PAD_DISP0_DAT10__GPIO4_IO31 | MUX_PAD_CTRL(SPI_PAD_CTRL),
180 iomux_v3_cfg_t const ecspi4_pads[] = {
181 MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
182 MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
183 MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
184 MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL),
187 int board_spi_cs_gpio(unsigned bus, unsigned cs)
189 return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
190 ? (IMX_GPIO_NR(3, 20)) : -1;
193 static void setup_spi(void)
195 #ifdef CONFIG_TARGET_ZC5202
196 gpio_request(IMX_GPIO_NR(5, 17), "spi_cs0");
197 gpio_request(IMX_GPIO_NR(5, 9), "spi_cs1");
198 gpio_direction_output(IMX_GPIO_NR(5, 17), 1);
199 gpio_direction_output(IMX_GPIO_NR(5, 9), 1);
200 imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
203 gpio_request(IMX_GPIO_NR(3, 20), "spi4_cs0");
204 gpio_direction_output(IMX_GPIO_NR(3, 20), 1);
205 imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
207 enable_spi_clk(true, 3);
211 static struct i2c_pads_info i2c_pad_info1 = {
213 .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | I2C_PAD,
214 .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | I2C_PAD,
215 .gp = IMX_GPIO_NR(2, 30)
218 .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
219 .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
220 .gp = IMX_GPIO_NR(4, 13)
224 static struct i2c_pads_info i2c_pad_info2 = {
226 .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD,
227 .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD,
228 .gp = IMX_GPIO_NR(1, 5)
231 .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | I2C_PAD,
232 .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | I2C_PAD,
233 .gp = IMX_GPIO_NR(7, 11)
237 iomux_v3_cfg_t const usdhc2_pads[] = {
238 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
239 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
240 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
241 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
242 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
243 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
244 MX6_PAD_GPIO_4__SD2_CD_B | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
247 iomux_v3_cfg_t const usdhc4_pads[] = {
248 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
249 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
250 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
251 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
252 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
253 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
254 MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
255 MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
256 MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
257 MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
260 #ifdef CONFIG_FSL_ESDHC_IMX
261 struct fsl_esdhc_cfg usdhc_cfg[2] = {
266 #define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
268 int board_mmc_getcd(struct mmc *mmc)
270 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
273 switch (cfg->esdhc_base) {
274 case USDHC2_BASE_ADDR:
275 ret = !gpio_get_value(USDHC2_CD_GPIO);
277 case USDHC4_BASE_ADDR:
278 ret = 1; /* eMMC/uSDHC4 is always present */
285 int board_mmc_init(bd_t *bis)
287 #ifndef CONFIG_SPL_BUILD
292 * According to the board_mmc_init() the following map is done:
293 * (U-boot device node) (Physical Port)
298 for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
301 imx_iomux_v3_setup_multiple_pads(
302 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
303 gpio_direction_input(USDHC2_CD_GPIO);
304 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
307 imx_iomux_v3_setup_multiple_pads(
308 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
309 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
312 printf("Warning: you configured more USDHC controllers"
313 "(%d) then supported by the board (%d)\n",
314 i + 1, CONFIG_SYS_FSL_USDHC_NUM);
318 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
325 struct src *psrc = (struct src *)SRC_BASE_ADDR;
326 unsigned reg = readl(&psrc->sbmr1) >> 11;
329 * Upon reading BOOT_CFG register the following map is done:
330 * Bit 11 and 12 of BOOT_CFG register can determine the current
339 imx_iomux_v3_setup_multiple_pads(
340 usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
341 usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
342 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
343 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
346 imx_iomux_v3_setup_multiple_pads(
347 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
348 usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
349 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
350 gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
354 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
362 * Do not overwrite the console
363 * Use always serial for U-Boot console
365 int overwrite_console(void)
370 int board_eth_init(bd_t *bis)
375 return cpu_eth_init(bis);
378 int board_early_init_f(void)
389 /* address of boot parameters */
390 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
392 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
393 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
398 int power_init_board(void)
404 ret = power_pfuze100_init(I2C_PMIC);
408 p = pmic_get("PFUZE100");
413 pmic_reg_read(p, PFUZE100_DEVICEID, ®);
414 printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
416 /* Increase VGEN3 from 2.5 to 2.8V */
417 pmic_reg_read(p, PFUZE100_VGEN3VOL, ®);
418 reg &= ~LDO_VOL_MASK;
420 pmic_reg_write(p, PFUZE100_VGEN3VOL, reg);
422 /* Increase VGEN5 from 2.8 to 3V */
423 pmic_reg_read(p, PFUZE100_VGEN5VOL, ®);
424 reg &= ~LDO_VOL_MASK;
426 pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
428 /* Set SW1AB stanby volage to 0.975V */
429 pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
430 reg &= ~SW1x_STBY_MASK;
432 pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
434 /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
435 pmic_reg_read(p, PFUZE100_SW1ABCONF, ®);
436 reg &= ~SW1xCONF_DVSSPEED_MASK;
437 reg |= SW1xCONF_DVSSPEED_4US;
438 pmic_reg_write(p, PFUZE100_SW1ABCONF, reg);
440 /* Set SW1C standby voltage to 0.975V */
441 pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
442 reg &= ~SW1x_STBY_MASK;
444 pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
446 /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
447 pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
448 reg &= ~SW1xCONF_DVSSPEED_MASK;
449 reg |= SW1xCONF_DVSSPEED_4US;
450 pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
455 #ifdef CONFIG_CMD_BMODE
456 static const struct boot_mode board_boot_modes[] = {
457 /* 4 bit bus width */
458 {"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
459 /* 8 bit bus width */
460 {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
465 int board_late_init(void)
467 #ifdef CONFIG_CMD_BMODE
468 add_board_boot_modes(board_boot_modes);
471 env_set("board_name", BOARD_NAME);
478 puts(BOARD_NAME "\n");
483 #ifdef CONFIG_SPL_BUILD
485 #include <linux/libfdt.h>
487 const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
488 .dram_sdclk_0 = 0x00020030,
489 .dram_sdclk_1 = 0x00020030,
490 .dram_cas = 0x00020030,
491 .dram_ras = 0x00020030,
492 .dram_reset = 0x00020030,
493 .dram_sdcke0 = 0x00003000,
494 .dram_sdcke1 = 0x00003000,
495 .dram_sdba2 = 0x00000000,
496 .dram_sdodt0 = 0x00003030,
497 .dram_sdodt1 = 0x00003030,
498 .dram_sdqs0 = 0x00000030,
499 .dram_sdqs1 = 0x00000030,
500 .dram_sdqs2 = 0x00000030,
501 .dram_sdqs3 = 0x00000030,
502 .dram_sdqs4 = 0x00000030,
503 .dram_sdqs5 = 0x00000030,
504 .dram_sdqs6 = 0x00000030,
505 .dram_sdqs7 = 0x00000030,
506 .dram_dqm0 = 0x00020030,
507 .dram_dqm1 = 0x00020030,
508 .dram_dqm2 = 0x00020030,
509 .dram_dqm3 = 0x00020030,
510 .dram_dqm4 = 0x00020030,
511 .dram_dqm5 = 0x00020030,
512 .dram_dqm6 = 0x00020030,
513 .dram_dqm7 = 0x00020030,
516 const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
517 .grp_ddr_type = 0x000C0000,
518 .grp_ddrmode_ctl = 0x00020000,
519 .grp_ddrpke = 0x00000000,
520 .grp_addds = 0x00000030,
521 .grp_ctlds = 0x00000030,
522 .grp_ddrmode = 0x00020000,
523 .grp_b0ds = 0x00000030,
524 .grp_b1ds = 0x00000030,
525 .grp_b2ds = 0x00000030,
526 .grp_b3ds = 0x00000030,
527 .grp_b4ds = 0x00000030,
528 .grp_b5ds = 0x00000030,
529 .grp_b6ds = 0x00000030,
530 .grp_b7ds = 0x00000030,
533 const struct mx6_mmdc_calibration mx6_mmcd_calib = {
534 .p0_mpwldectrl0 = 0x001F001F,
535 .p0_mpwldectrl1 = 0x001F001F,
536 .p1_mpwldectrl0 = 0x00440044,
537 .p1_mpwldectrl1 = 0x00440044,
538 .p0_mpdgctrl0 = 0x434B0350,
539 .p0_mpdgctrl1 = 0x034C0359,
540 .p1_mpdgctrl0 = 0x434B0350,
541 .p1_mpdgctrl1 = 0x03650348,
542 .p0_mprddlctl = 0x4436383B,
543 .p1_mprddlctl = 0x39393341,
544 .p0_mpwrdlctl = 0x35373933,
545 .p1_mpwrdlctl = 0x48254A36,
548 /* MT41K128M16JT-125 */
549 static struct mx6_ddr3_cfg mem_ddr = {
562 static void ccgr_init(void)
564 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
566 writel(0x00C03F3F, &ccm->CCGR0);
567 writel(0x0030FC03, &ccm->CCGR1);
568 writel(0x0FFFC000, &ccm->CCGR2);
569 writel(0x3FF00000, &ccm->CCGR3);
570 writel(0x00FFF300, &ccm->CCGR4);
571 writel(0x0F0000C3, &ccm->CCGR5);
572 writel(0x000003FF, &ccm->CCGR6);
576 * This section requires the differentiation between iMX6 Sabre boards, but
577 * for now, it will configure only for the mx6q variant.
579 static void spl_dram_init(void)
581 struct mx6_ddr_sysinfo sysinfo = {
582 /* width of data bus:0=16,1=32,2=64 */
584 /* config for full 4GB range so that get_mem_size() works */
585 .cs_density = 32, /* 32Gb per CS */
586 /* single chip select */
589 .rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
590 .rtt_nom = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Nom = RZQ/4 */
591 .walat = 1, /* Write additional latency */
592 .ralat = 5, /* Read additional latency */
593 .mif3_mode = 3, /* Command prediction working mode */
594 .bi_on = 1, /* Bank interleaving enabled */
595 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
596 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
597 .ddr_type = DDR_TYPE_DDR3,
598 .refsel = 1, /* Refresh cycles at 32KHz */
599 .refr = 7, /* 8 refresh commands per refresh cycle */
602 mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
603 mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
606 void board_init_f(ulong dummy)
608 /* setup AIPS and disable watchdog */
614 /* iomux and setup of i2c */
615 board_early_init_f();
620 /* UART clocks enabled and gd valid - init serial console */
621 preloader_console_init();
623 /* DDR initialization */
627 memset(__bss_start, 0, __bss_end - __bss_start);
629 /* load/boot image from boot device */
630 board_init_r(NULL, 0);