1 /*
2  * Copyright (C) 2013 Freescale Semiconductor, Inc.
3  *
4  * Author: Fabio Estevam <fabio.estevam@freescale.com>
5  *
6  * SPDX-License-Identifier:	GPL-2.0+
7  */
8 
9 #include <asm/arch/clock.h>
10 #include <asm/arch/iomux.h>
11 #include <asm/arch/crm_regs.h>
12 #include <asm/arch/imx-regs.h>
13 #include <asm/arch/mx6-ddr.h>
14 #include <asm/arch/mx6-pins.h>
15 #include <asm/arch/sys_proto.h>
16 #include <asm/gpio.h>
17 #include <asm/imx-common/iomux-v3.h>
18 #include <asm/imx-common/mxc_i2c.h>
19 #include <asm/imx-common/spi.h>
20 #include <asm/io.h>
21 #include <linux/sizes.h>
22 #include <common.h>
23 #include <fsl_esdhc.h>
24 #include <i2c.h>
25 #include <mmc.h>
26 #include <netdev.h>
27 #include <power/pmic.h>
28 #include <power/pfuze100_pmic.h>
29 #include "../common/pfuze.h"
30 #include <usb.h>
31 #include <usb/ehci-ci.h>
32 
33 DECLARE_GLOBAL_DATA_PTR;
34 
35 #define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
36 	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |			\
37 	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
38 
39 #define USDHC_PAD_CTRL (PAD_CTL_PUS_22K_UP |			\
40 	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
41 	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
42 
43 #define ENET_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |             \
44 	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED   |             \
45 	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)
46 
47 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
48 		      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
49 
50 #define I2C_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
51 		      PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |	\
52 		      PAD_CTL_DSE_40ohm | PAD_CTL_HYS |		\
53 		      PAD_CTL_ODE | PAD_CTL_SRE_FAST)
54 
55 #define OTGID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
56 			PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW |\
57 			PAD_CTL_DSE_80ohm | PAD_CTL_HYS |	\
58 			PAD_CTL_SRE_FAST)
59 
60 #define ETH_PHY_POWER	IMX_GPIO_NR(4, 21)
61 
62 int dram_init(void)
63 {
64 	gd->ram_size = imx_ddr_size();
65 
66 	return 0;
67 }
68 
69 static iomux_v3_cfg_t const uart1_pads[] = {
70 	MX6_PAD_UART1_TXD__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
71 	MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
72 };
73 
74 static iomux_v3_cfg_t const usdhc1_pads[] = {
75 	/* 8 bit SD */
76 	MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
77 	MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
78 	MX6_PAD_SD1_DAT0__USDHC1_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
79 	MX6_PAD_SD1_DAT1__USDHC1_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
80 	MX6_PAD_SD1_DAT2__USDHC1_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
81 	MX6_PAD_SD1_DAT3__USDHC1_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
82 	MX6_PAD_SD1_DAT4__USDHC1_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
83 	MX6_PAD_SD1_DAT5__USDHC1_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
84 	MX6_PAD_SD1_DAT6__USDHC1_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
85 	MX6_PAD_SD1_DAT7__USDHC1_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
86 
87 	/*CD pin*/
88 	MX6_PAD_KEY_ROW7__GPIO_4_7 | MUX_PAD_CTRL(NO_PAD_CTRL),
89 };
90 
91 static iomux_v3_cfg_t const usdhc2_pads[] = {
92 	MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
93 	MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
94 	MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
95 	MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
96 	MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
97 	MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
98 
99 	/*CD pin*/
100 	MX6_PAD_SD2_DAT7__GPIO_5_0 | MUX_PAD_CTRL(NO_PAD_CTRL),
101 };
102 
103 static iomux_v3_cfg_t const usdhc3_pads[] = {
104 	MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
105 	MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
106 	MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
107 	MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
108 	MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
109 	MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
110 
111 	/*CD pin*/
112 	MX6_PAD_REF_CLK_32K__GPIO_3_22 | MUX_PAD_CTRL(NO_PAD_CTRL),
113 };
114 
115 static iomux_v3_cfg_t const fec_pads[] = {
116 	MX6_PAD_FEC_MDC__FEC_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
117 	MX6_PAD_FEC_MDIO__FEC_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
118 	MX6_PAD_FEC_CRS_DV__FEC_RX_DV | MUX_PAD_CTRL(ENET_PAD_CTRL),
119 	MX6_PAD_FEC_RXD0__FEC_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
120 	MX6_PAD_FEC_RXD1__FEC_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
121 	MX6_PAD_FEC_TX_EN__FEC_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
122 	MX6_PAD_FEC_TXD0__FEC_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
123 	MX6_PAD_FEC_TXD1__FEC_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
124 	MX6_PAD_FEC_REF_CLK__FEC_REF_OUT | MUX_PAD_CTRL(ENET_PAD_CTRL),
125 	MX6_PAD_FEC_RX_ER__GPIO_4_19 | MUX_PAD_CTRL(NO_PAD_CTRL),
126 	MX6_PAD_FEC_TX_CLK__GPIO_4_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
127 };
128 
129 #ifdef CONFIG_MXC_SPI
130 static iomux_v3_cfg_t ecspi1_pads[] = {
131 	MX6_PAD_ECSPI1_MISO__ECSPI_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
132 	MX6_PAD_ECSPI1_MOSI__ECSPI_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
133 	MX6_PAD_ECSPI1_SCLK__ECSPI_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
134 	MX6_PAD_ECSPI1_SS0__GPIO4_IO11  | MUX_PAD_CTRL(NO_PAD_CTRL),
135 };
136 
137 int board_spi_cs_gpio(unsigned bus, unsigned cs)
138 {
139 	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 11)) : -1;
140 }
141 
142 static void setup_spi(void)
143 {
144 	imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
145 }
146 #endif
147 
148 static void setup_iomux_uart(void)
149 {
150 	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
151 }
152 
153 static void setup_iomux_fec(void)
154 {
155 	imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
156 
157 	/* Power up LAN8720 PHY */
158 	gpio_direction_output(ETH_PHY_POWER , 1);
159 	udelay(15000);
160 }
161 
162 #define USDHC1_CD_GPIO	IMX_GPIO_NR(4, 7)
163 #define USDHC2_CD_GPIO	IMX_GPIO_NR(5, 0)
164 #define USDHC3_CD_GPIO	IMX_GPIO_NR(3, 22)
165 
166 static struct fsl_esdhc_cfg usdhc_cfg[3] = {
167 	{USDHC1_BASE_ADDR},
168 	{USDHC2_BASE_ADDR, 0, 4},
169 	{USDHC3_BASE_ADDR, 0, 4},
170 };
171 
172 int board_mmc_get_env_dev(int devno)
173 {
174 	return devno;
175 }
176 
177 int board_mmc_getcd(struct mmc *mmc)
178 {
179 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
180 	int ret = 0;
181 
182 	switch (cfg->esdhc_base) {
183 	case USDHC1_BASE_ADDR:
184 		ret = !gpio_get_value(USDHC1_CD_GPIO);
185 		break;
186 	case USDHC2_BASE_ADDR:
187 		ret = !gpio_get_value(USDHC2_CD_GPIO);
188 		break;
189 	case USDHC3_BASE_ADDR:
190 		ret = !gpio_get_value(USDHC3_CD_GPIO);
191 		break;
192 	}
193 
194 	return ret;
195 }
196 
197 int board_mmc_init(bd_t *bis)
198 {
199 #ifndef CONFIG_SPL_BUILD
200 	int i, ret;
201 
202 	/*
203 	 * According to the board_mmc_init() the following map is done:
204 	 * (U-Boot device node)    (Physical Port)
205 	 * mmc0                    USDHC1
206 	 * mmc1                    USDHC2
207 	 * mmc2                    USDHC3
208 	 */
209 	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
210 		switch (i) {
211 		case 0:
212 			imx_iomux_v3_setup_multiple_pads(
213 				usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
214 			gpio_direction_input(USDHC1_CD_GPIO);
215 			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
216 			break;
217 		case 1:
218 			imx_iomux_v3_setup_multiple_pads(
219 				usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
220 			gpio_direction_input(USDHC2_CD_GPIO);
221 			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
222 			break;
223 		case 2:
224 			imx_iomux_v3_setup_multiple_pads(
225 				usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
226 			gpio_direction_input(USDHC3_CD_GPIO);
227 			usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
228 			break;
229 		default:
230 			printf("Warning: you configured more USDHC controllers"
231 				"(%d) than supported by the board\n", i + 1);
232 			return -EINVAL;
233 		}
234 
235 		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
236 		if (ret) {
237 			printf("Warning: failed to initialize "
238 				"mmc dev %d\n", i);
239 			return ret;
240 		}
241 	}
242 
243 	return 0;
244 #else
245 	struct src *src_regs = (struct src *)SRC_BASE_ADDR;
246 	u32 val;
247 	u32 port;
248 
249 	val = readl(&src_regs->sbmr1);
250 
251 	/* Boot from USDHC */
252 	port = (val >> 11) & 0x3;
253 	switch (port) {
254 	case 0:
255 		imx_iomux_v3_setup_multiple_pads(usdhc1_pads,
256 						 ARRAY_SIZE(usdhc1_pads));
257 		gpio_direction_input(USDHC1_CD_GPIO);
258 		usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
259 		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
260 		break;
261 	case 1:
262 		imx_iomux_v3_setup_multiple_pads(usdhc2_pads,
263 						 ARRAY_SIZE(usdhc2_pads));
264 		gpio_direction_input(USDHC2_CD_GPIO);
265 		usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
266 		usdhc_cfg[0].max_bus_width = 4;
267 		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
268 		break;
269 	case 2:
270 		imx_iomux_v3_setup_multiple_pads(usdhc3_pads,
271 						 ARRAY_SIZE(usdhc3_pads));
272 		gpio_direction_input(USDHC3_CD_GPIO);
273 		usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
274 		usdhc_cfg[0].max_bus_width = 4;
275 		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
276 		break;
277 	}
278 
279 	gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
280 	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
281 #endif
282 }
283 
284 #ifdef CONFIG_SYS_I2C_MXC
285 #define PC	MUX_PAD_CTRL(I2C_PAD_CTRL)
286 /* I2C1 for PMIC */
287 struct i2c_pads_info i2c_pad_info1 = {
288 	.sda = {
289 		.i2c_mode = MX6_PAD_I2C1_SDA__I2C1_SDA | PC,
290 		.gpio_mode = MX6_PAD_I2C1_SDA__GPIO_3_13 | PC,
291 		.gp = IMX_GPIO_NR(3, 13),
292 	},
293 	.scl = {
294 		.i2c_mode = MX6_PAD_I2C1_SCL__I2C1_SCL | PC,
295 		.gpio_mode = MX6_PAD_I2C1_SCL__GPIO_3_12 | PC,
296 		.gp = IMX_GPIO_NR(3, 12),
297 	},
298 };
299 
300 int power_init_board(void)
301 {
302 	struct pmic *p;
303 
304 	p = pfuze_common_init(I2C_PMIC);
305 	if (!p)
306 		return -ENODEV;
307 
308 	return pfuze_mode_init(p, APS_PFM);
309 }
310 #endif
311 
312 #ifdef CONFIG_FEC_MXC
313 int board_eth_init(bd_t *bis)
314 {
315 	setup_iomux_fec();
316 
317 	return cpu_eth_init(bis);
318 }
319 
320 static int setup_fec(void)
321 {
322 	struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
323 
324 	/* clear gpr1[14], gpr1[18:17] to select anatop clock */
325 	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC_MASK, 0);
326 
327 	return enable_fec_anatop_clock(0, ENET_50MHZ);
328 }
329 #endif
330 
331 #ifdef CONFIG_USB_EHCI_MX6
332 #define USB_OTHERREGS_OFFSET	0x800
333 #define UCTRL_PWR_POL		(1 << 9)
334 
335 static iomux_v3_cfg_t const usb_otg_pads[] = {
336 	/* OTG1 */
337 	MX6_PAD_KEY_COL4__USB_USBOTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
338 	MX6_PAD_EPDC_PWRCOM__ANATOP_USBOTG1_ID | MUX_PAD_CTRL(OTGID_PAD_CTRL),
339 	/* OTG2 */
340 	MX6_PAD_KEY_COL5__USB_USBOTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)
341 };
342 
343 static void setup_usb(void)
344 {
345 	imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
346 					 ARRAY_SIZE(usb_otg_pads));
347 }
348 
349 int board_usb_phy_mode(int port)
350 {
351 	if (port == 1)
352 		return USB_INIT_HOST;
353 	else
354 		return usb_phy_mode(port);
355 }
356 
357 int board_ehci_hcd_init(int port)
358 {
359 	u32 *usbnc_usb_ctrl;
360 
361 	if (port > 1)
362 		return -EINVAL;
363 
364 	usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
365 				 port * 4);
366 
367 	/* Set Power polarity */
368 	setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
369 
370 	return 0;
371 }
372 #endif
373 
374 int board_early_init_f(void)
375 {
376 	setup_iomux_uart();
377 #ifdef CONFIG_MXC_SPI
378 	setup_spi();
379 #endif
380 	return 0;
381 }
382 
383 int board_init(void)
384 {
385 	/* address of boot parameters */
386 	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
387 
388 #ifdef CONFIG_SYS_I2C_MXC
389 	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
390 #endif
391 
392 #ifdef	CONFIG_FEC_MXC
393 	setup_fec();
394 #endif
395 
396 #ifdef CONFIG_USB_EHCI_MX6
397 	setup_usb();
398 #endif
399 
400 	return 0;
401 }
402 
403 int checkboard(void)
404 {
405 	puts("Board: MX6SLEVK\n");
406 
407 	return 0;
408 }
409 
410 #ifdef CONFIG_SPL_BUILD
411 #include <spl.h>
412 #include <libfdt.h>
413 
414 const struct mx6sl_iomux_ddr_regs mx6_ddr_ioregs = {
415 	.dram_sdqs0 = 0x00003030,
416 	.dram_sdqs1 = 0x00003030,
417 	.dram_sdqs2 = 0x00003030,
418 	.dram_sdqs3 = 0x00003030,
419 	.dram_dqm0 = 0x00000030,
420 	.dram_dqm1 = 0x00000030,
421 	.dram_dqm2 = 0x00000030,
422 	.dram_dqm3 = 0x00000030,
423 	.dram_cas  = 0x00000030,
424 	.dram_ras  = 0x00000030,
425 	.dram_sdclk_0 = 0x00000028,
426 	.dram_reset = 0x00000030,
427 	.dram_sdba2 = 0x00000000,
428 	.dram_odt0 = 0x00000008,
429 	.dram_odt1 = 0x00000008,
430 };
431 
432 const struct mx6sl_iomux_grp_regs mx6_grp_ioregs = {
433 	.grp_b0ds = 0x00000030,
434 	.grp_b1ds = 0x00000030,
435 	.grp_b2ds = 0x00000030,
436 	.grp_b3ds = 0x00000030,
437 	.grp_addds = 0x00000030,
438 	.grp_ctlds = 0x00000030,
439 	.grp_ddrmode_ctl = 0x00020000,
440 	.grp_ddrpke = 0x00000000,
441 	.grp_ddrmode = 0x00020000,
442 	.grp_ddr_type = 0x00080000,
443 };
444 
445 const struct mx6_mmdc_calibration mx6_mmcd_calib = {
446 	.p0_mpdgctrl0 =  0x20000000,
447 	.p0_mpdgctrl1 =  0x00000000,
448 	.p0_mprddlctl =  0x4241444a,
449 	.p0_mpwrdlctl =  0x3030312b,
450 	.mpzqlp2ctl = 0x1b4700c7,
451 };
452 
453 static struct mx6_lpddr2_cfg mem_ddr = {
454 	.mem_speed = 800,
455 	.density = 4,
456 	.width = 32,
457 	.banks = 8,
458 	.rowaddr = 14,
459 	.coladdr = 10,
460 	.trcd_lp = 2000,
461 	.trppb_lp = 2000,
462 	.trpab_lp = 2250,
463 	.trasmin = 4200,
464 };
465 
466 static void ccgr_init(void)
467 {
468 	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
469 
470 	writel(0xFFFFFFFF, &ccm->CCGR0);
471 	writel(0xFFFFFFFF, &ccm->CCGR1);
472 	writel(0xFFFFFFFF, &ccm->CCGR2);
473 	writel(0xFFFFFFFF, &ccm->CCGR3);
474 	writel(0xFFFFFFFF, &ccm->CCGR4);
475 	writel(0xFFFFFFFF, &ccm->CCGR5);
476 	writel(0xFFFFFFFF, &ccm->CCGR6);
477 
478 	writel(0x00260324, &ccm->cbcmr);
479 }
480 
481 static void spl_dram_init(void)
482 {
483 	struct mx6_ddr_sysinfo sysinfo = {
484 		.dsize = mem_ddr.width / 32,
485 		.cs_density = 20,
486 		.ncs = 2,
487 		.cs1_mirror = 0,
488 		.walat = 0,
489 		.ralat = 2,
490 		.mif3_mode = 3,
491 		.bi_on = 1,
492 		.rtt_wr = 0,        /* LPDDR2 does not need rtt_wr rtt_nom */
493 		.rtt_nom = 0,
494 		.sde_to_rst = 0,    /* LPDDR2 does not need this field */
495 		.rst_to_cke = 0x10, /* JEDEC value for LPDDR2: 200us */
496 		.ddr_type = DDR_TYPE_LPDDR2,
497 	};
498 	mx6sl_dram_iocfg(32, &mx6_ddr_ioregs, &mx6_grp_ioregs);
499 	mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
500 }
501 
502 void board_init_f(ulong dummy)
503 {
504 	/* setup AIPS and disable watchdog */
505 	arch_cpu_init();
506 
507 	ccgr_init();
508 
509 	/* iomux and setup of i2c */
510 	board_early_init_f();
511 
512 	/* setup GP timer */
513 	timer_init();
514 
515 	/* UART clocks enabled and gd valid - init serial console */
516 	preloader_console_init();
517 
518 	/* DDR initialization */
519 	spl_dram_init();
520 
521 	/* Clear the BSS. */
522 	memset(__bss_start, 0, __bss_end - __bss_start);
523 
524 	/* load/boot image from boot device */
525 	board_init_r(NULL, 0);
526 }
527 #endif
528