[people/ms/u-boot.git] / board / compulab / cm_fx6 / spl.c

/*
 * SPL specific code for Compulab CM-FX6 board
 *
 * Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
 *
 * Author: Nikita Kiryanov <nikita@compulab.co.il>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/mx6-ddr.h>
#include <asm/arch/clock.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/crm_regs.h>
#include <asm/imx-common/iomux-v3.h>
#include <fsl_esdhc.h>
#include "common.h"

DECLARE_GLOBAL_DATA_PTR;

enum ddr_config {
	DDR_16BIT_256MB,
	DDR_32BIT_512MB,
	DDR_32BIT_1GB,
	DDR_64BIT_1GB,
	DDR_64BIT_2GB,
	DDR_64BIT_4GB,
	DDR_UNKNOWN,
};

/*
 * Below DRAM_RESET[DDR_SEL] = 0 which is incorrect according to
 * Freescale QRM, but this is exactly the value used by the automatic
 * calibration script and it works also in all our tests, so we leave
 * it as is at this point.
 */
#define CM_FX6_DDR_IOMUX_CFG \
	.dram_sdqs0	= 0x00000038, \
	.dram_sdqs1	= 0x00000038, \
	.dram_sdqs2	= 0x00000038, \
	.dram_sdqs3	= 0x00000038, \
	.dram_sdqs4	= 0x00000038, \
	.dram_sdqs5	= 0x00000038, \
	.dram_sdqs6	= 0x00000038, \
	.dram_sdqs7	= 0x00000038, \
	.dram_dqm0	= 0x00000038, \
	.dram_dqm1	= 0x00000038, \
	.dram_dqm2	= 0x00000038, \
	.dram_dqm3	= 0x00000038, \
	.dram_dqm4	= 0x00000038, \
	.dram_dqm5	= 0x00000038, \
	.dram_dqm6	= 0x00000038, \
	.dram_dqm7	= 0x00000038, \
	.dram_cas	= 0x00000038, \
	.dram_ras	= 0x00000038, \
	.dram_sdclk_0	= 0x00000038, \
	.dram_sdclk_1	= 0x00000038, \
	.dram_sdcke0	= 0x00003000, \
	.dram_sdcke1	= 0x00003000, \
	.dram_reset	= 0x00000038, \
	.dram_sdba2	= 0x00000000, \
	.dram_sdodt0	= 0x00000038, \
	.dram_sdodt1	= 0x00000038,

#define CM_FX6_GPR_IOMUX_CFG \
	.grp_b0ds	= 0x00000038, \
	.grp_b1ds	= 0x00000038, \
	.grp_b2ds	= 0x00000038, \
	.grp_b3ds	= 0x00000038, \
	.grp_b4ds	= 0x00000038, \
	.grp_b5ds	= 0x00000038, \
	.grp_b6ds	= 0x00000038, \
	.grp_b7ds	= 0x00000038, \
	.grp_addds	= 0x00000038, \
	.grp_ddrmode_ctl = 0x00020000, \
	.grp_ddrpke	= 0x00000000, \
	.grp_ddrmode	= 0x00020000, \
	.grp_ctlds	= 0x00000038, \
	.grp_ddr_type	= 0x000C0000,

static struct mx6sdl_iomux_ddr_regs ddr_iomux_s = { CM_FX6_DDR_IOMUX_CFG };
static struct mx6sdl_iomux_grp_regs grp_iomux_s = { CM_FX6_GPR_IOMUX_CFG };
static struct mx6dq_iomux_ddr_regs ddr_iomux_q = { CM_FX6_DDR_IOMUX_CFG };
static struct mx6dq_iomux_grp_regs grp_iomux_q = { CM_FX6_GPR_IOMUX_CFG };

static struct mx6_mmdc_calibration cm_fx6_calib_s = {
	.p0_mpwldectrl0	= 0x005B0061,
	.p0_mpwldectrl1	= 0x004F0055,
	.p0_mpdgctrl0	= 0x0314030C,
	.p0_mpdgctrl1	= 0x025C0268,
	.p0_mprddlctl	= 0x42464646,
	.p0_mpwrdlctl	= 0x36322C34,
};

static struct mx6_ddr_sysinfo cm_fx6_sysinfo_s = {
	.cs1_mirror	= 1,
	.cs_density	= 16,
	.bi_on		= 1,
	.rtt_nom	= 1,
	.rtt_wr		= 0,
	.ralat		= 5,
	.walat		= 1,
	.mif3_mode	= 3,
	.rst_to_cke	= 0x23,
	.sde_to_rst	= 0x10,
};

static struct mx6_ddr3_cfg cm_fx6_ddr3_cfg_s = {
	.mem_speed	= 800,
	.density	= 4,
	.rowaddr	= 14,
	.coladdr	= 10,
	.pagesz		= 2,
	.trcd		= 1800,
	.trcmin		= 5200,
	.trasmin	= 3600,
	.SRT		= 0,
};

static void spl_mx6s_dram_init(enum ddr_config dram_config, bool reset)
{
	if (reset)
		((struct mmdc_p_regs *)MX6_MMDC_P0_MDCTL)->mdmisc = 2;

	switch (dram_config) {
	case DDR_16BIT_256MB:
		cm_fx6_sysinfo_s.dsize = 0;
		cm_fx6_sysinfo_s.ncs = 1;
		break;
	case DDR_32BIT_512MB:
		cm_fx6_sysinfo_s.dsize = 1;
		cm_fx6_sysinfo_s.ncs = 1;
		break;
	case DDR_32BIT_1GB:
		cm_fx6_sysinfo_s.dsize = 1;
		cm_fx6_sysinfo_s.ncs = 2;
		break;
	default:
		puts("Tried to setup invalid DDR configuration\n");
		hang();
	}

	mx6_dram_cfg(&cm_fx6_sysinfo_s, &cm_fx6_calib_s, &cm_fx6_ddr3_cfg_s);
	udelay(100);
}

static struct mx6_mmdc_calibration cm_fx6_calib_q = {
	.p0_mpwldectrl0	= 0x00630068,
	.p0_mpwldectrl1	= 0x0068005D,
	.p0_mpdgctrl0	= 0x04140428,
	.p0_mpdgctrl1	= 0x037C037C,
	.p0_mprddlctl	= 0x3C30303A,
	.p0_mpwrdlctl	= 0x3A344038,
	.p1_mpwldectrl0	= 0x0035004C,
	.p1_mpwldectrl1	= 0x00170026,
	.p1_mpdgctrl0	= 0x0374037C,
	.p1_mpdgctrl1	= 0x0350032C,
	.p1_mprddlctl	= 0x30322A3C,
	.p1_mpwrdlctl	= 0x48304A3E,
};

static struct mx6_ddr_sysinfo cm_fx6_sysinfo_q = {
	.cs_density	= 16,
	.cs1_mirror	= 1,
	.bi_on		= 1,
	.rtt_nom	= 1,
	.rtt_wr		= 0,
	.ralat		= 5,
	.walat		= 1,
	.mif3_mode	= 3,
	.rst_to_cke	= 0x23,
	.sde_to_rst	= 0x10,
};

static struct mx6_ddr3_cfg cm_fx6_ddr3_cfg_q = {
	.mem_speed	= 1066,
	.density	= 4,
	.rowaddr	= 14,
	.coladdr	= 10,
	.pagesz		= 2,
	.trcd		= 1324,
	.trcmin		= 59500,
	.trasmin	= 9750,
	.SRT		= 0,
};

static void spl_mx6q_dram_init(enum ddr_config dram_config, bool reset)
{
	if (reset)
		((struct mmdc_p_regs *)MX6_MMDC_P0_MDCTL)->mdmisc = 2;

	cm_fx6_ddr3_cfg_q.rowaddr = 14;
	switch (dram_config) {
	case DDR_16BIT_256MB:
		cm_fx6_sysinfo_q.dsize = 0;
		cm_fx6_sysinfo_q.ncs = 1;
		break;
	case DDR_32BIT_512MB:
		cm_fx6_sysinfo_q.dsize = 1;
		cm_fx6_sysinfo_q.ncs = 1;
		break;
	case DDR_64BIT_1GB:
		cm_fx6_sysinfo_q.dsize = 2;
		cm_fx6_sysinfo_q.ncs = 1;
		break;
	case DDR_64BIT_2GB:
		cm_fx6_sysinfo_q.dsize = 2;
		cm_fx6_sysinfo_q.ncs = 2;
		break;
	case DDR_64BIT_4GB:
		cm_fx6_sysinfo_q.dsize = 2;
		cm_fx6_sysinfo_q.ncs = 2;
		cm_fx6_ddr3_cfg_q.rowaddr = 15;
		break;
	default:
		puts("Tried to setup invalid DDR configuration\n");
		hang();
	}

	mx6_dram_cfg(&cm_fx6_sysinfo_q, &cm_fx6_calib_q, &cm_fx6_ddr3_cfg_q);
	udelay(100);
}

static int cm_fx6_spl_dram_init(void)
{
	unsigned long bank1_size, bank2_size;

	switch (get_cpu_type()) {
	case MXC_CPU_MX6SOLO:
		mx6sdl_dram_iocfg(64, &ddr_iomux_s, &grp_iomux_s);

		spl_mx6s_dram_init(DDR_32BIT_1GB, false);
		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
		bank2_size = get_ram_size((long int *)PHYS_SDRAM_2, 0x80000000);
		if (bank1_size == 0x20000000) {
			if (bank2_size == 0x20000000)
				return 0;

			spl_mx6s_dram_init(DDR_32BIT_512MB, true);
			return 0;
		}

		spl_mx6s_dram_init(DDR_16BIT_256MB, true);
		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
		if (bank1_size == 0x10000000)
			return 0;

		break;
	case MXC_CPU_MX6D:
	case MXC_CPU_MX6Q:
		mx6dq_dram_iocfg(64, &ddr_iomux_q, &grp_iomux_q);

		spl_mx6q_dram_init(DDR_64BIT_4GB, false);
		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
		if (bank1_size == 0x80000000)
			return 0;

		if (bank1_size == 0x40000000) {
			bank2_size = get_ram_size((long int *)PHYS_SDRAM_2,
								0x80000000);
			if (bank2_size == 0x40000000) {
				/* Don't do a full reset here */
				spl_mx6q_dram_init(DDR_64BIT_2GB, false);
			} else {
				spl_mx6q_dram_init(DDR_64BIT_1GB, true);
			}

			return 0;
		}

		spl_mx6q_dram_init(DDR_32BIT_512MB, true);
		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
		if (bank1_size == 0x20000000)
			return 0;

		spl_mx6q_dram_init(DDR_16BIT_256MB, true);
		bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
		if (bank1_size == 0x10000000)
			return 0;

		break;
	}

	return -1;
}

static iomux_v3_cfg_t const uart4_pads[] = {
	IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
	IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
};

static void cm_fx6_setup_uart(void)
{
	SETUP_IOMUX_PADS(uart4_pads);
	enable_uart_clk(1);
}

#ifdef CONFIG_SPL_SPI_SUPPORT
static void cm_fx6_setup_ecspi(void)
{
	cm_fx6_set_ecspi_iomux();
	enable_spi_clk(1, 0);
}
#else
static void cm_fx6_setup_ecspi(void) { }
#endif

void board_init_f(ulong dummy)
{
	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;

	/*
	 * We don't use DMA in SPL, but we do need it in U-Boot. U-Boot
	 * initializes DMA very early (before all board code), so the only
	 * opportunity we have to initialize APBHDMA clocks is in SPL.
	 */
	setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
	enable_usdhc_clk(1, 2);

	arch_cpu_init();
	timer_init();
	cm_fx6_setup_ecspi();
	cm_fx6_setup_uart();
	get_clocks();
	preloader_console_init();
	gpio_direction_output(CM_FX6_GREEN_LED, 1);
	if (cm_fx6_spl_dram_init()) {
		puts("!!!ERROR!!! DRAM detection failed!!!\n");
		hang();
	}

	memset(__bss_start, 0, __bss_end - __bss_start);
	board_init_r(NULL, 0);
}

void spl_board_init(void)
{
	u32 boot_device = spl_boot_device();

	if (boot_device == BOOT_DEVICE_SPI)
		puts("Booting from SPI flash\n");
	else if (boot_device == BOOT_DEVICE_MMC1)
		puts("Booting from MMC\n");
	else
		puts("Unknown boot device\n");
}

#ifdef CONFIG_SPL_MMC_SUPPORT
static struct fsl_esdhc_cfg usdhc_cfg = {
	.esdhc_base = USDHC3_BASE_ADDR,
	.max_bus_width = 4,
};

int board_mmc_init(bd_t *bis)
{
	cm_fx6_set_usdhc_iomux();

	usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);

	return fsl_esdhc_initialize(bis, &usdhc_cfg);
}
#endif
Commit	Line	Data
e32028a7 NK	1	/*
	2	* SPL specific code for Compulab CM-FX6 board
	3	*
	4	* Copyright (C) 2014, Compulab Ltd - http://compulab.co.il/
	5	*
	6	* Author: Nikita Kiryanov <nikita@compulab.co.il>
	7	*
	8	* SPDX-License-Identifier: GPL-2.0+
	9	*/
	10
	11	#include <common.h>
	12	#include <spl.h>
	13	#include <asm/io.h>
	14	#include <asm/gpio.h>
	15	#include <asm/arch/mx6-ddr.h>
	16	#include <asm/arch/clock.h>
	17	#include <asm/arch/sys_proto.h>
a6b0652b	18	#include <asm/arch/crm_regs.h>
e32028a7 NK	19	#include <asm/imx-common/iomux-v3.h>
	20	#include <fsl_esdhc.h>
	21	#include "common.h"
	22
	23	DECLARE_GLOBAL_DATA_PTR;
	24
	25	enum ddr_config {
	26	DDR_16BIT_256MB,
	27	DDR_32BIT_512MB,
	28	DDR_32BIT_1GB,
	29	DDR_64BIT_1GB,
	30	DDR_64BIT_2GB,
	31	DDR_64BIT_4GB,
	32	DDR_UNKNOWN,
	33	};
	34
	35	/*
	36	* Below DRAM_RESET[DDR_SEL] = 0 which is incorrect according to
	37	* Freescale QRM, but this is exactly the value used by the automatic
	38	* calibration script and it works also in all our tests, so we leave
	39	* it as is at this point.
	40	*/
	41	#define CM_FX6_DDR_IOMUX_CFG \
	42	.dram_sdqs0 = 0x00000038, \
	43	.dram_sdqs1 = 0x00000038, \
	44	.dram_sdqs2 = 0x00000038, \
	45	.dram_sdqs3 = 0x00000038, \
	46	.dram_sdqs4 = 0x00000038, \
	47	.dram_sdqs5 = 0x00000038, \
	48	.dram_sdqs6 = 0x00000038, \
	49	.dram_sdqs7 = 0x00000038, \
	50	.dram_dqm0 = 0x00000038, \
	51	.dram_dqm1 = 0x00000038, \
	52	.dram_dqm2 = 0x00000038, \
	53	.dram_dqm3 = 0x00000038, \
	54	.dram_dqm4 = 0x00000038, \
	55	.dram_dqm5 = 0x00000038, \
	56	.dram_dqm6 = 0x00000038, \
	57	.dram_dqm7 = 0x00000038, \
	58	.dram_cas = 0x00000038, \
	59	.dram_ras = 0x00000038, \
	60	.dram_sdclk_0 = 0x00000038, \
	61	.dram_sdclk_1 = 0x00000038, \
	62	.dram_sdcke0 = 0x00003000, \
	63	.dram_sdcke1 = 0x00003000, \
	64	.dram_reset = 0x00000038, \
	65	.dram_sdba2 = 0x00000000, \
	66	.dram_sdodt0 = 0x00000038, \
	67	.dram_sdodt1 = 0x00000038,
	68
	69	#define CM_FX6_GPR_IOMUX_CFG \
	70	.grp_b0ds = 0x00000038, \
	71	.grp_b1ds = 0x00000038, \
	72	.grp_b2ds = 0x00000038, \
	73	.grp_b3ds = 0x00000038, \
	74	.grp_b4ds = 0x00000038, \
	75	.grp_b5ds = 0x00000038, \
	76	.grp_b6ds = 0x00000038, \
	77	.grp_b7ds = 0x00000038, \
	78	.grp_addds = 0x00000038, \
	79	.grp_ddrmode_ctl = 0x00020000, \
	80	.grp_ddrpke = 0x00000000, \
	81	.grp_ddrmode = 0x00020000, \
	82	.grp_ctlds = 0x00000038, \
83	.grp_ddr_type = 0x000C0000,
84
85	static struct mx6sdl_iomux_ddr_regs ddr_iomux_s = { CM_FX6_DDR_IOMUX_CFG };
86	static struct mx6sdl_iomux_grp_regs grp_iomux_s = { CM_FX6_GPR_IOMUX_CFG };
87	static struct mx6dq_iomux_ddr_regs ddr_iomux_q = { CM_FX6_DDR_IOMUX_CFG };
88	static struct mx6dq_iomux_grp_regs grp_iomux_q = { CM_FX6_GPR_IOMUX_CFG };
89
90	static struct mx6_mmdc_calibration cm_fx6_calib_s = {
91	.p0_mpwldectrl0 = 0x005B0061,
92	.p0_mpwldectrl1 = 0x004F0055,
93	.p0_mpdgctrl0 = 0x0314030C,
94	.p0_mpdgctrl1 = 0x025C0268,
95	.p0_mprddlctl = 0x42464646,
96	.p0_mpwrdlctl = 0x36322C34,
97	};
98
99	static struct mx6_ddr_sysinfo cm_fx6_sysinfo_s = {
100	.cs1_mirror = 1,
101	.cs_density = 16,
102	.bi_on = 1,
103	.rtt_nom = 1,
104	.rtt_wr = 0,
105	.ralat = 5,
106	.walat = 1,
107	.mif3_mode = 3,
108	.rst_to_cke = 0x23,
109	.sde_to_rst = 0x10,
110	};
111
112	static struct mx6_ddr3_cfg cm_fx6_ddr3_cfg_s = {
113	.mem_speed = 800,
114	.density = 4,
115	.rowaddr = 14,
116	.coladdr = 10,
117	.pagesz = 2,
118	.trcd = 1800,
119	.trcmin = 5200,
120	.trasmin = 3600,
121	.SRT = 0,
122	};
123
124	static void spl_mx6s_dram_init(enum ddr_config dram_config, bool reset)
125	{
126	if (reset)
127	((struct mmdc_p_regs *)MX6_MMDC_P0_MDCTL)->mdmisc = 2;
128
129	switch (dram_config) {
130	case DDR_16BIT_256MB:
131	cm_fx6_sysinfo_s.dsize = 0;
132	cm_fx6_sysinfo_s.ncs = 1;
133	break;
134	case DDR_32BIT_512MB:
135	cm_fx6_sysinfo_s.dsize = 1;
136	cm_fx6_sysinfo_s.ncs = 1;
137	break;
138	case DDR_32BIT_1GB:
139	cm_fx6_sysinfo_s.dsize = 1;
140	cm_fx6_sysinfo_s.ncs = 2;
141	break;
142	default:
143	puts("Tried to setup invalid DDR configuration\n");
144	hang();
145	}
146
147	mx6_dram_cfg(&cm_fx6_sysinfo_s, &cm_fx6_calib_s, &cm_fx6_ddr3_cfg_s);
148	udelay(100);
149	}
150
151	static struct mx6_mmdc_calibration cm_fx6_calib_q = {
152	.p0_mpwldectrl0 = 0x00630068,
153	.p0_mpwldectrl1 = 0x0068005D,
154	.p0_mpdgctrl0 = 0x04140428,
155	.p0_mpdgctrl1 = 0x037C037C,
156	.p0_mprddlctl = 0x3C30303A,
157	.p0_mpwrdlctl = 0x3A344038,
158	.p1_mpwldectrl0 = 0x0035004C,
159	.p1_mpwldectrl1 = 0x00170026,
160	.p1_mpdgctrl0 = 0x0374037C,
161	.p1_mpdgctrl1 = 0x0350032C,
162	.p1_mprddlctl = 0x30322A3C,
163	.p1_mpwrdlctl = 0x48304A3E,
164	};
165
166	static struct mx6_ddr_sysinfo cm_fx6_sysinfo_q = {
167	.cs_density = 16,
168	.cs1_mirror = 1,
169	.bi_on = 1,
170	.rtt_nom = 1,
171	.rtt_wr = 0,
172	.ralat = 5,
173	.walat = 1,
174	.mif3_mode = 3,
175	.rst_to_cke = 0x23,
176	.sde_to_rst = 0x10,
177	};
178
179	static struct mx6_ddr3_cfg cm_fx6_ddr3_cfg_q = {
180	.mem_speed = 1066,
181	.density = 4,
182	.rowaddr = 14,
183	.coladdr = 10,
184	.pagesz = 2,
185	.trcd = 1324,
186	.trcmin = 59500,
187	.trasmin = 9750,
188	.SRT = 0,
189	};
190
191	static void spl_mx6q_dram_init(enum ddr_config dram_config, bool reset)
192	{
193	if (reset)
194	((struct mmdc_p_regs *)MX6_MMDC_P0_MDCTL)->mdmisc = 2;
195
196	cm_fx6_ddr3_cfg_q.rowaddr = 14;
197	switch (dram_config) {
198	case DDR_16BIT_256MB:
199	cm_fx6_sysinfo_q.dsize = 0;
200	cm_fx6_sysinfo_q.ncs = 1;
201	break;
202	case DDR_32BIT_512MB:
203	cm_fx6_sysinfo_q.dsize = 1;
204	cm_fx6_sysinfo_q.ncs = 1;
205	break;
206	case DDR_64BIT_1GB:
207	cm_fx6_sysinfo_q.dsize = 2;
208	cm_fx6_sysinfo_q.ncs = 1;
209	break;
210	case DDR_64BIT_2GB:
211	cm_fx6_sysinfo_q.dsize = 2;
212	cm_fx6_sysinfo_q.ncs = 2;
213	break;
214	case DDR_64BIT_4GB:
215	cm_fx6_sysinfo_q.dsize = 2;
216	cm_fx6_sysinfo_q.ncs = 2;
217	cm_fx6_ddr3_cfg_q.rowaddr = 15;
218	break;
219	default:
220	puts("Tried to setup invalid DDR configuration\n");
221	hang();
222	}
223
224	mx6_dram_cfg(&cm_fx6_sysinfo_q, &cm_fx6_calib_q, &cm_fx6_ddr3_cfg_q);
225	udelay(100);
226	}
227
228	static int cm_fx6_spl_dram_init(void)
229	{
230	unsigned long bank1_size, bank2_size;
231
232	switch (get_cpu_type()) {
233	case MXC_CPU_MX6SOLO:
234	mx6sdl_dram_iocfg(64, &ddr_iomux_s, &grp_iomux_s);
235
236	spl_mx6s_dram_init(DDR_32BIT_1GB, false);
237	bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
0b23780f	238	bank2_size = get_ram_size((long int *)PHYS_SDRAM_2, 0x80000000);
e32028a7	239	if (bank1_size == 0x20000000) {
0b23780f NK	240	if (bank2_size == 0x20000000)
	241	return 0;
	242
e32028a7 NK	243	spl_mx6s_dram_init(DDR_32BIT_512MB, true);
	244	return 0;
	245	}
	246
	247	spl_mx6s_dram_init(DDR_16BIT_256MB, true);
	248	bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
	249	if (bank1_size == 0x10000000)
	250	return 0;
	251
	252	break;
	253	case MXC_CPU_MX6D:
	254	case MXC_CPU_MX6Q:
	255	mx6dq_dram_iocfg(64, &ddr_iomux_q, &grp_iomux_q);
	256
	257	spl_mx6q_dram_init(DDR_64BIT_4GB, false);
	258	bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
	259	if (bank1_size == 0x80000000)
	260	return 0;
	261
	262	if (bank1_size == 0x40000000) {
	263	bank2_size = get_ram_size((long int *)PHYS_SDRAM_2,
	264	0x80000000);
	265	if (bank2_size == 0x40000000) {
	266	/* Don't do a full reset here */
	267	spl_mx6q_dram_init(DDR_64BIT_2GB, false);
	268	} else {
	269	spl_mx6q_dram_init(DDR_64BIT_1GB, true);
	270	}
	271
	272	return 0;
	273	}
	274
	275	spl_mx6q_dram_init(DDR_32BIT_512MB, true);
	276	bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
	277	if (bank1_size == 0x20000000)
	278	return 0;
	279
	280	spl_mx6q_dram_init(DDR_16BIT_256MB, true);
	281	bank1_size = get_ram_size((long int *)PHYS_SDRAM_1, 0x80000000);
	282	if (bank1_size == 0x10000000)
	283	return 0;
	284
	285	break;
	286	}
	287
	288	return -1;
	289	}
	290
	291	static iomux_v3_cfg_t const uart4_pads[] = {
	292	IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	293	IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	294	};
	295
	296	static void cm_fx6_setup_uart(void)
	297	{
	298	SETUP_IOMUX_PADS(uart4_pads);
	299	enable_uart_clk(1);
	300	}
	301
	302	#ifdef CONFIG_SPL_SPI_SUPPORT
	303	static void cm_fx6_setup_ecspi(void)
	304	{
	305	cm_fx6_set_ecspi_iomux();
2d59acc7	306	enable_spi_clk(1, 0);
e32028a7 NK	307	}
	308	#else
	309	static void cm_fx6_setup_ecspi(void) { }
	310	#endif
	311
	312	void board_init_f(ulong dummy)
	313	{
a6b0652b NK	314	struct mxc_ccm_reg mxc_ccm = (struct mxc_ccm_reg )CCM_BASE_ADDR;
a6b0652b NK	315
a6b0652b NK	316	/*
	317	* We don't use DMA in SPL, but we do need it in U-Boot. U-Boot
	318	* initializes DMA very early (before all board code), so the only
	319	* opportunity we have to initialize APBHDMA clocks is in SPL.
	320	*/
	321	setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
	322	enable_usdhc_clk(1, 2);
	323
e32028a7 NK	324	arch_cpu_init();
	325	timer_init();
	326	cm_fx6_setup_ecspi();
	327	cm_fx6_setup_uart();
	328	get_clocks();
	329	preloader_console_init();
	330	gpio_direction_output(CM_FX6_GREEN_LED, 1);
	331	if (cm_fx6_spl_dram_init()) {
	332	puts("!!!ERROR!!! DRAM detection failed!!!\n");
	333	hang();
	334	}
	335
	336	memset(__bss_start, 0, __bss_end - __bss_start);
	337	board_init_r(NULL, 0);
	338	}
	339
	340	void spl_board_init(void)
	341	{
	342	u32 boot_device = spl_boot_device();
	343
	344	if (boot_device == BOOT_DEVICE_SPI)
	345	puts("Booting from SPI flash\n");
	346	else if (boot_device == BOOT_DEVICE_MMC1)
	347	puts("Booting from MMC\n");
	348	else
	349	puts("Unknown boot device\n");
	350	}
	351
	352	#ifdef CONFIG_SPL_MMC_SUPPORT
	353	static struct fsl_esdhc_cfg usdhc_cfg = {
	354	.esdhc_base = USDHC3_BASE_ADDR,
	355	.max_bus_width = 4,
	356	};
	357
	358	int board_mmc_init(bd_t *bis)
	359	{
	360	cm_fx6_set_usdhc_iomux();
	361
	362	usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
	363
	364	return fsl_esdhc_initialize(bis, &usdhc_cfg);
	365	}
	366	#endif