4 * Copyright (C) 2014 Marek Vasut <marex@denx.de>
6 * SPDX-License-Identifier: GPL-2.0+
11 #include <asm/arch/clock.h>
12 #include <asm/arch/iomux.h>
13 #include <asm/arch/mx6-ddr.h>
14 #include <asm/arch/mx6-pins.h>
15 #include <asm/arch/sys_proto.h>
17 #include <asm/imx-common/boot_mode.h>
18 #include <asm/imx-common/iomux-v3.h>
19 #include <asm/imx-common/mxc_i2c.h>
20 #include <asm/arch/crm_regs.h>
23 #include <fsl_esdhc.h>
26 #include <asm/arch/mx6-ddr.h>
28 DECLARE_GLOBAL_DATA_PTR;
30 #define UART_PAD_CTRL \
31 (PAD_CTL_PKE | PAD_CTL_PUE | \
32 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
33 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
35 #define USDHC_PAD_CTRL \
36 (PAD_CTL_PKE | PAD_CTL_PUE | \
37 PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
38 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
40 #define ENET_PAD_CTRL \
41 (PAD_CTL_PKE | PAD_CTL_PUE | \
42 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
43 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
45 #define ENET_PHY_CFG_PAD_CTRL \
46 (PAD_CTL_PKE | PAD_CTL_PUE | \
47 PAD_CTL_PUS_22K_UP | PAD_CTL_HYS)
49 #define RGMII_PAD_CTRL \
50 (PAD_CTL_PKE | PAD_CTL_PUE | \
51 PAD_CTL_PUS_100K_UP | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
53 #define SPI_PAD_CTRL \
55 PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED | \
56 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
58 #define I2C_PAD_CTRL \
59 (PAD_CTL_PKE | PAD_CTL_PUE | \
60 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_LOW | \
61 PAD_CTL_DSE_240ohm | PAD_CTL_HYS | \
64 #define BUTTON_PAD_CTRL \
65 (PAD_CTL_PKE | PAD_CTL_PUE | \
66 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
67 PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
69 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
71 #define NOVENA_AUDIO_PWRON IMX_GPIO_NR(5, 17)
72 #define NOVENA_FPGA_RESET_N_GPIO IMX_GPIO_NR(5, 7)
73 #define NOVENA_HDMI_GHOST_HPD IMX_GPIO_NR(5, 4)
74 #define NOVENA_PCIE_RESET_GPIO IMX_GPIO_NR(3, 29)
75 #define NOVENA_PCIE_POWER_ON_GPIO IMX_GPIO_NR(7, 12)
76 #define NOVENA_PCIE_WAKE_UP_GPIO IMX_GPIO_NR(3, 22)
77 #define NOVENA_PCIE_DISABLE_GPIO IMX_GPIO_NR(2, 16)
82 static iomux_v3_cfg_t audio_pads[] = {
84 MX6_PAD_DISP0_DAT23__GPIO5_IO17 | MUX_PAD_CTRL(NO_PAD_CTRL),
87 static void novena_spl_setup_iomux_audio(void)
89 imx_iomux_v3_setup_multiple_pads(audio_pads, ARRAY_SIZE(audio_pads));
90 gpio_direction_output(NOVENA_AUDIO_PWRON, 1);
96 static iomux_v3_cfg_t enet_pads1[] = {
97 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
98 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
99 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(RGMII_PAD_CTRL),
100 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
101 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
102 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
103 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
104 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(RGMII_PAD_CTRL),
105 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
107 /* pin 35, PHY_AD2 */
108 MX6_PAD_RGMII_RXC__GPIO6_IO30 | MUX_PAD_CTRL(ENET_PHY_CFG_PAD_CTRL),
110 MX6_PAD_RGMII_RD0__GPIO6_IO25 | MUX_PAD_CTRL(ENET_PHY_CFG_PAD_CTRL),
112 MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(ENET_PHY_CFG_PAD_CTRL),
114 MX6_PAD_RGMII_RD2__GPIO6_IO28 | MUX_PAD_CTRL(ENET_PHY_CFG_PAD_CTRL),
116 MX6_PAD_RGMII_RD3__GPIO6_IO29 | MUX_PAD_CTRL(ENET_PHY_CFG_PAD_CTRL),
117 /* pin 33, CLK125_EN */
118 MX6_PAD_RGMII_RX_CTL__GPIO6_IO24 | MUX_PAD_CTRL(ENET_PHY_CFG_PAD_CTRL),
120 /* pin 42 PHY nRST */
121 MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(NO_PAD_CTRL),
124 static iomux_v3_cfg_t enet_pads2[] = {
125 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(RGMII_PAD_CTRL),
126 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
127 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
128 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
129 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(RGMII_PAD_CTRL),
130 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(RGMII_PAD_CTRL),
133 static void novena_spl_setup_iomux_enet(void)
135 imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
137 /* Assert Ethernet PHY nRST */
138 gpio_direction_output(IMX_GPIO_NR(3, 23), 0);
141 * Use imx6 internal pull-ups to drive PHY mode pins during PHY reset
142 * de-assertion. The intention is to use weak signal drivers (pull-ups)
143 * to prevent the conflict between PHY pins becoming outputs after
144 * reset and imx6 still driving the pins. The issue is described in PHY
147 gpio_direction_input(IMX_GPIO_NR(6, 30)); /* PHY_AD2 = 1 */
148 gpio_direction_input(IMX_GPIO_NR(6, 25)); /* MODE0 = 1 */
149 gpio_direction_input(IMX_GPIO_NR(6, 27)); /* MODE1 = 1 */
150 gpio_direction_input(IMX_GPIO_NR(6, 28)); /* MODE2 = 1 */
151 gpio_direction_input(IMX_GPIO_NR(6, 29)); /* MODE3 = 1 */
152 gpio_direction_input(IMX_GPIO_NR(6, 24)); /* CLK125_EN = 1 */
154 /* Following reset timing (p.53, fig.8 from the PHY datasheet) */
157 /* De-assert Ethernet PHY nRST */
158 gpio_set_value(IMX_GPIO_NR(3, 23), 1);
160 /* PHY is now configured, connect FEC to the pads */
161 imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
164 * PHY datasheet recommends on p.53 to wait at least 100us after reset
165 * before using MII, so we enforce the delay here
173 static iomux_v3_cfg_t fpga_pads[] = {
175 MX6_PAD_DISP0_DAT13__GPIO5_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL),
178 static void novena_spl_setup_iomux_fpga(void)
180 imx_iomux_v3_setup_multiple_pads(fpga_pads, ARRAY_SIZE(fpga_pads));
181 gpio_direction_output(NOVENA_FPGA_RESET_N_GPIO, 0);
187 static iomux_v3_cfg_t button_pads[] = {
189 MX6_PAD_KEY_COL4__GPIO4_IO14 | MUX_PAD_CTRL(BUTTON_PAD_CTRL),
192 static void novena_spl_setup_iomux_buttons(void)
194 imx_iomux_v3_setup_multiple_pads(button_pads, ARRAY_SIZE(button_pads));
203 * 0x30 ... SO-DIMM temp sensor
205 * 0x50 ... SO-DIMM ID
207 struct i2c_pads_info i2c_pad_info0 = {
209 .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC,
210 .gpio_mode = MX6_PAD_EIM_D21__GPIO3_IO21 | PC,
211 .gp = IMX_GPIO_NR(3, 21)
214 .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC,
215 .gpio_mode = MX6_PAD_EIM_D28__GPIO3_IO28 | PC,
216 .gp = IMX_GPIO_NR(3, 28)
226 static struct i2c_pads_info i2c_pad_info1 = {
228 .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | PC,
229 .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | PC,
230 .gp = IMX_GPIO_NR(2, 30)
233 .i2c_mode = MX6_PAD_EIM_D16__I2C2_SDA | PC,
234 .gpio_mode = MX6_PAD_EIM_D16__GPIO3_IO16 | PC,
235 .gp = IMX_GPIO_NR(3, 16)
245 static struct i2c_pads_info i2c_pad_info2 = {
247 .i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC,
248 .gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC,
249 .gp = IMX_GPIO_NR(3, 17)
252 .i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
253 .gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
254 .gp = IMX_GPIO_NR(3, 18)
258 static void novena_spl_setup_iomux_i2c(void)
260 setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
261 setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
262 setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
268 #ifdef CONFIG_CMD_PCI
269 static iomux_v3_cfg_t pcie_pads[] = {
271 MX6_PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
273 MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),
274 /* "Wake up" pin (input) */
275 MX6_PAD_EIM_D22__GPIO3_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL),
276 /* "Disable endpoint" (rfkill) pin */
277 MX6_PAD_EIM_A22__GPIO2_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL),
280 static void novena_spl_setup_iomux_pcie(void)
282 imx_iomux_v3_setup_multiple_pads(pcie_pads, ARRAY_SIZE(pcie_pads));
284 /* Ensure PCIe is powered down */
285 gpio_direction_output(NOVENA_PCIE_POWER_ON_GPIO, 0);
287 /* Put the card into reset */
288 gpio_direction_output(NOVENA_PCIE_RESET_GPIO, 0);
290 /* Input signal to wake system from mPCIe card */
291 gpio_direction_input(NOVENA_PCIE_WAKE_UP_GPIO);
293 /* Drive RFKILL high, to ensure the radio is turned on */
294 gpio_direction_output(NOVENA_PCIE_DISABLE_GPIO, 1);
297 static inline void novena_spl_setup_iomux_pcie(void) {}
303 static iomux_v3_cfg_t usdhc2_pads[] = {
304 MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
305 MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
306 MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
307 MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
308 MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
309 MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
310 MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), /* WP */
311 MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
314 static iomux_v3_cfg_t usdhc3_pads[] = {
315 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
316 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
317 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
318 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
319 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
320 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
323 static void novena_spl_setup_iomux_sdhc(void)
325 imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
326 imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
328 /* Big SD write-protect and card-detect */
329 gpio_direction_input(IMX_GPIO_NR(1, 2));
330 gpio_direction_input(IMX_GPIO_NR(1, 4));
336 #ifdef CONFIG_MXC_SPI
337 static iomux_v3_cfg_t ecspi3_pads[] = {
339 MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
340 MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
341 MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
342 MX6_PAD_DISP0_DAT3__GPIO4_IO24 | MUX_PAD_CTRL(SPI_PAD_CTRL),
343 MX6_PAD_DISP0_DAT4__GPIO4_IO25 | MUX_PAD_CTRL(SPI_PAD_CTRL),
344 MX6_PAD_DISP0_DAT5__GPIO4_IO26 | MUX_PAD_CTRL(SPI_PAD_CTRL),
345 MX6_PAD_DISP0_DAT7__ECSPI3_RDY | MUX_PAD_CTRL(SPI_PAD_CTRL),
348 static void novena_spl_setup_iomux_spi(void)
350 imx_iomux_v3_setup_multiple_pads(ecspi3_pads, ARRAY_SIZE(ecspi3_pads));
351 /* De-assert the nCS */
352 gpio_direction_output(MX6_PAD_DISP0_DAT3__GPIO4_IO24, 1);
353 gpio_direction_output(MX6_PAD_DISP0_DAT4__GPIO4_IO25, 1);
354 gpio_direction_output(MX6_PAD_DISP0_DAT5__GPIO4_IO26, 1);
357 static void novena_spl_setup_iomux_spi(void) {}
363 static iomux_v3_cfg_t const uart2_pads[] = {
364 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
365 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
368 static iomux_v3_cfg_t const uart3_pads[] = {
369 MX6_PAD_EIM_D24__UART3_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
370 MX6_PAD_EIM_D25__UART3_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
373 static iomux_v3_cfg_t const uart4_pads[] = {
374 MX6_PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
375 MX6_PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
376 MX6_PAD_CSI0_DAT16__UART4_CTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
377 MX6_PAD_CSI0_DAT17__UART4_RTS_B | MUX_PAD_CTRL(UART_PAD_CTRL),
381 static void novena_spl_setup_iomux_uart(void)
383 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
384 imx_iomux_v3_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
385 imx_iomux_v3_setup_multiple_pads(uart4_pads, ARRAY_SIZE(uart4_pads));
392 static iomux_v3_cfg_t hdmi_pads[] = {
393 /* "Ghost HPD" pin */
394 MX6_PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL),
397 static void novena_spl_setup_iomux_video(void)
399 imx_iomux_v3_setup_multiple_pads(hdmi_pads, ARRAY_SIZE(hdmi_pads));
400 gpio_direction_input(NOVENA_HDMI_GHOST_HPD);
403 static inline void novena_spl_setup_iomux_video(void) {}
407 * SPL boots from uSDHC card
409 #ifdef CONFIG_FSL_ESDHC
410 static struct fsl_esdhc_cfg usdhc_cfg = {
411 USDHC3_BASE_ADDR, 0, 4
414 int board_mmc_getcd(struct mmc *mmc)
416 /* There is no CD for a microSD card, assume always present. */
420 int board_mmc_init(bd_t *bis)
422 usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
423 return fsl_esdhc_initialize(bis, &usdhc_cfg);
427 /* Configure MX6Q/DUAL mmdc DDR io registers */
428 static struct mx6dq_iomux_ddr_regs novena_ddr_ioregs = {
429 /* SDCLK[0:1], CAS, RAS, Reset: Differential input, 40ohm */
430 .dram_sdclk_0 = 0x00020038,
431 .dram_sdclk_1 = 0x00020038,
432 .dram_cas = 0x00000038,
433 .dram_ras = 0x00000038,
434 .dram_reset = 0x00000038,
435 /* SDCKE[0:1]: 100k pull-up */
436 .dram_sdcke0 = 0x00003000,
437 .dram_sdcke1 = 0x00003000,
438 /* SDBA2: pull-up disabled */
439 .dram_sdba2 = 0x00000000,
440 /* SDODT[0:1]: 100k pull-up, 40 ohm */
441 .dram_sdodt0 = 0x00000038,
442 .dram_sdodt1 = 0x00000038,
443 /* SDQS[0:7]: Differential input, 40 ohm */
444 .dram_sdqs0 = 0x00000038,
445 .dram_sdqs1 = 0x00000038,
446 .dram_sdqs2 = 0x00000038,
447 .dram_sdqs3 = 0x00000038,
448 .dram_sdqs4 = 0x00000038,
449 .dram_sdqs5 = 0x00000038,
450 .dram_sdqs6 = 0x00000038,
451 .dram_sdqs7 = 0x00000038,
453 /* DQM[0:7]: Differential input, 40 ohm */
454 .dram_dqm0 = 0x00000038,
455 .dram_dqm1 = 0x00000038,
456 .dram_dqm2 = 0x00000038,
457 .dram_dqm3 = 0x00000038,
458 .dram_dqm4 = 0x00000038,
459 .dram_dqm5 = 0x00000038,
460 .dram_dqm6 = 0x00000038,
461 .dram_dqm7 = 0x00000038,
464 /* Configure MX6Q/DUAL mmdc GRP io registers */
465 static struct mx6dq_iomux_grp_regs novena_grp_ioregs = {
467 .grp_ddr_type = 0x000c0000,
468 .grp_ddrmode_ctl = 0x00020000,
469 /* Disable DDR pullups */
470 .grp_ddrpke = 0x00000000,
471 /* ADDR[00:16], SDBA[0:1]: 40 ohm */
472 .grp_addds = 0x00000038,
473 /* CS0/CS1/SDBA2/CKE0/CKE1/SDWE: 40 ohm */
474 .grp_ctlds = 0x00000038,
475 /* DATA[00:63]: Differential input, 40 ohm */
476 .grp_ddrmode = 0x00020000,
477 .grp_b0ds = 0x00000038,
478 .grp_b1ds = 0x00000038,
479 .grp_b2ds = 0x00000038,
480 .grp_b3ds = 0x00000038,
481 .grp_b4ds = 0x00000038,
482 .grp_b5ds = 0x00000038,
483 .grp_b6ds = 0x00000038,
484 .grp_b7ds = 0x00000038,
487 static struct mx6_mmdc_calibration novena_mmdc_calib = {
488 /* write leveling calibration determine */
489 .p0_mpwldectrl0 = 0x00420048,
490 .p0_mpwldectrl1 = 0x006f0059,
491 .p1_mpwldectrl0 = 0x005a0104,
492 .p1_mpwldectrl1 = 0x01070113,
493 /* Read DQS Gating calibration */
494 .p0_mpdgctrl0 = 0x437c040b,
495 .p0_mpdgctrl1 = 0x0413040e,
496 .p1_mpdgctrl0 = 0x444f0446,
497 .p1_mpdgctrl1 = 0x044d0422,
498 /* Read Calibration: DQS delay relative to DQ read access */
499 .p0_mprddlctl = 0x4c424249,
500 .p1_mprddlctl = 0x4e48414f,
501 /* Write Calibration: DQ/DM delay relative to DQS write access */
502 .p0_mpwrdlctl = 0x42414641,
503 .p1_mpwrdlctl = 0x46374b43,
506 static struct mx6_ddr_sysinfo novena_ddr_info = {
507 /* Width of data bus: 0=16, 1=32, 2=64 */
509 /* Config for full 4GB range so that get_mem_size() works */
510 .cs_density = 32, /* 32Gb per CS */
511 /* Single chip select */
514 .rtt_wr = 1, /* RTT_Wr = RZQ/4 */
515 .rtt_nom = 2, /* RTT_Nom = RZQ/2 */
516 .walat = 3, /* Write additional latency */
517 .ralat = 7, /* Read additional latency */
518 .mif3_mode = 3, /* Command prediction working mode */
519 .bi_on = 1, /* Bank interleaving enabled */
520 .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
521 .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
524 static struct mx6_ddr3_cfg elpida_4gib_1600 = {
537 static void ccgr_init(void)
539 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
541 writel(0x00C03F3F, &ccm->CCGR0);
542 writel(0x0030FC03, &ccm->CCGR1);
543 writel(0x0FFFC000, &ccm->CCGR2);
544 writel(0x3FF00000, &ccm->CCGR3);
545 writel(0xFFFFF300, &ccm->CCGR4);
546 writel(0x0F0000C3, &ccm->CCGR5);
547 writel(0x000003FF, &ccm->CCGR6);
550 static void gpr_init(void)
552 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
554 /* enable AXI cache for VDOA/VPU/IPU */
555 writel(0xF00000CF, &iomux->gpr[4]);
556 /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
557 writel(0x007F007F, &iomux->gpr[6]);
558 writel(0x007F007F, &iomux->gpr[7]);
562 * called from C runtime startup code (arch/arm/lib/crt0.S:_main)
563 * - we have a stack and a place to store GD, both in SRAM
564 * - no variable global data is available
566 void board_init_f(ulong dummy)
568 /* setup AIPS and disable watchdog */
577 #ifdef CONFIG_BOARD_POSTCLK_INIT
578 board_postclk_init();
580 #ifdef CONFIG_FSL_ESDHC
584 /* Setup IOMUX and configure basics. */
585 novena_spl_setup_iomux_audio();
586 novena_spl_setup_iomux_buttons();
587 novena_spl_setup_iomux_enet();
588 novena_spl_setup_iomux_fpga();
589 novena_spl_setup_iomux_i2c();
590 novena_spl_setup_iomux_pcie();
591 novena_spl_setup_iomux_sdhc();
592 novena_spl_setup_iomux_spi();
593 novena_spl_setup_iomux_uart();
594 novena_spl_setup_iomux_video();
596 /* UART clocks enabled and gd valid - init serial console */
597 preloader_console_init();
599 /* Start the DDR DRAM */
600 mx6dq_dram_iocfg(64, &novena_ddr_ioregs, &novena_grp_ioregs);
601 mx6_dram_cfg(&novena_ddr_info, &novena_mmdc_calib, &elpida_4gib_1600);
604 memset(__bss_start, 0, __bss_end - __bss_start);
606 /* load/boot image from boot device */
607 board_init_r(NULL, 0);
610 void reset_cpu(ulong addr)