[people/ms/u-boot.git] / board / solidrun / mx6cuboxi / mx6cuboxi.c

/*
 * Copyright (C) 2015 Freescale Semiconductor, Inc.
 *
 * Author: Fabio Estevam <fabio.estevam@freescale.com>
 *
 * Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>
 *
 * Based on SPL code from Solidrun tree, which is:
 * Author: Tungyi Lin <tungyilin1127@gmail.com>
 *
 * Derived from EDM_CF_IMX6 code by TechNexion,Inc
 * Ported to SolidRun microSOM by Rabeeh Khoury <rabeeh@solid-run.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/mxc_hdmi.h>
#include <asm/errno.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/video.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <miiphy.h>
#include <netdev.h>
#include <asm/arch/crm_regs.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <spl.h>
#include <usb.h>
#include <usb/ehci-fsl.h>

DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |			\
	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)

#define ENET_PAD_CTRL_PD  (PAD_CTL_PUS_100K_DOWN |		\
	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)

#define ENET_PAD_CTRL_CLK  ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)

#define ETH_PHY_RESET	IMX_GPIO_NR(4, 15)
#define USB_H1_VBUS	IMX_GPIO_NR(1, 0)

int dram_init(void)
{
	gd->ram_size = imx_ddr_size();
	return 0;
}

static iomux_v3_cfg_t const uart1_pads[] = {
	IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
	IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
};

static iomux_v3_cfg_t const usdhc2_pads[] = {
	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
};

static iomux_v3_cfg_t const hb_cbi_sense[] = {
	/* These pins are for sensing if it is a CuBox-i or a HummingBoard */
	IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09  | MUX_PAD_CTRL(UART_PAD_CTRL)),
	IOMUX_PADS(PAD_EIM_DA4__GPIO3_IO04   | MUX_PAD_CTRL(UART_PAD_CTRL)),
};

static iomux_v3_cfg_t const usb_pads[] = {
	IOMUX_PADS(PAD_GPIO_0__GPIO1_IO00 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};

static void setup_iomux_uart(void)
{
	SETUP_IOMUX_PADS(uart1_pads);
}

static struct fsl_esdhc_cfg usdhc_cfg[1] = {
	{USDHC2_BASE_ADDR},
};

int board_mmc_getcd(struct mmc *mmc)
{
	return 1; /* uSDHC2 is always present */
}

int board_mmc_init(bd_t *bis)
{
	SETUP_IOMUX_PADS(usdhc2_pads);
	usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
	gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;

	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}

static iomux_v3_cfg_t const enet_pads[] = {
	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	/* AR8035 reset */
	IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
	/* AR8035 interrupt */
	IOMUX_PADS(PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	/* GPIO16 -> AR8035 25MHz */
	IOMUX_PADS(PAD_GPIO_16__ENET_REF_CLK	  | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC	  | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK)),
	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
};

static void setup_iomux_enet(void)
{
	SETUP_IOMUX_PADS(enet_pads);

	gpio_direction_output(ETH_PHY_RESET, 0);
	mdelay(2);
	gpio_set_value(ETH_PHY_RESET, 1);
}

int board_phy_config(struct phy_device *phydev)
{
	if (phydev->drv->config)
		phydev->drv->config(phydev);

	return 0;
}

int board_eth_init(bd_t *bis)
{
	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;

	int ret = enable_fec_anatop_clock(ENET_25MHZ);
	if (ret)
		return ret;

	/* set gpr1[ENET_CLK_SEL] */
	setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);

	setup_iomux_enet();

	return cpu_eth_init(bis);
}

#ifdef CONFIG_VIDEO_IPUV3
static void do_enable_hdmi(struct display_info_t const *dev)
{
	imx_enable_hdmi_phy();
}

struct display_info_t const displays[] = {
	{
		.bus	= -1,
		.addr	= 0,
		.pixfmt	= IPU_PIX_FMT_RGB24,
		.detect	= detect_hdmi,
		.enable	= do_enable_hdmi,
		.mode	= {
			.name           = "HDMI",
			/* 1024x768@60Hz (VESA)*/
			.refresh        = 60,
			.xres           = 1024,
			.yres           = 768,
			.pixclock       = 15384,
			.left_margin    = 160,
			.right_margin   = 24,
			.upper_margin   = 29,
			.lower_margin   = 3,
			.hsync_len      = 136,
			.vsync_len      = 6,
			.sync           = FB_SYNC_EXT,
			.vmode          = FB_VMODE_NONINTERLACED
		}
	}
};

size_t display_count = ARRAY_SIZE(displays);

static int setup_display(void)
{
	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
	int reg;
	int timeout = 100000;

	enable_ipu_clock();
	imx_setup_hdmi();

	/* set video pll to 455MHz (24MHz * (37+11/12) / 2) */
	setbits_le32(&ccm->analog_pll_video, BM_ANADIG_PLL_VIDEO_POWERDOWN);

	reg = readl(&ccm->analog_pll_video);
	reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
	reg |= BF_ANADIG_PLL_VIDEO_DIV_SELECT(37);
	reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
	reg |= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(1);
	writel(reg, &ccm->analog_pll_video);

	writel(BF_ANADIG_PLL_VIDEO_NUM_A(11), &ccm->analog_pll_video_num);
	writel(BF_ANADIG_PLL_VIDEO_DENOM_B(12), &ccm->analog_pll_video_denom);

	reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
	writel(reg, &ccm->analog_pll_video);

	while (timeout--)
		if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
			break;
	if (timeout < 0) {
		printf("Warning: video pll lock timeout!\n");
		return -ETIMEDOUT;
	}

	reg = readl(&ccm->analog_pll_video);
	reg |= BM_ANADIG_PLL_VIDEO_ENABLE;
	reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
	writel(reg, &ccm->analog_pll_video);

	/* gate ipu1_di0_clk */
	clrbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);

	/* select video_pll clock / 7  for ipu1_di0_clk -> 65MHz pixclock */
	reg = readl(&ccm->chsccdr);
	reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK |
		 MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK |
		 MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
	reg |= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET) |
	       (6 << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET) |
	       (0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
	writel(reg, &ccm->chsccdr);

	/* enable ipu1_di0_clk */
	setbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);

	return 0;
}
#endif /* CONFIG_VIDEO_IPUV3 */

#ifdef CONFIG_USB_EHCI_MX6
static void setup_usb(void)
{
	SETUP_IOMUX_PADS(usb_pads);
}

int board_ehci_hcd_init(int port)
{
	if (port == 1)
		gpio_direction_output(USB_H1_VBUS, 1);

	return 0;
}
#endif

int board_early_init_f(void)
{
	int ret = 0;
	setup_iomux_uart();

#ifdef CONFIG_VIDEO_IPUV3
	ret = setup_display();
#endif

#ifdef CONFIG_USB_EHCI_MX6
	setup_usb();
#endif
	return ret;
}

int board_init(void)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;

	return 0;
}

static bool is_hummingboard(void)
{
	int val1, val2;

	SETUP_IOMUX_PADS(hb_cbi_sense);

	gpio_direction_input(IMX_GPIO_NR(4, 9));
	gpio_direction_input(IMX_GPIO_NR(3, 4));

	val1 = gpio_get_value(IMX_GPIO_NR(4, 9));
	val2 = gpio_get_value(IMX_GPIO_NR(3, 4));

	/*
	 * Machine selection -
	 * Machine        val1, val2
	 * -------------------------
	 * HB rev 3.x     x     0
	 * CBi            0     1
	 * HB             1     1
	 */

	if (val2 == 0)
		return true;
	else if (val1 == 0)
		return false;
	else
		return true;
}

int checkboard(void)
{
	if (is_hummingboard())
		puts("Board: MX6 Hummingboard\n");
	else
		puts("Board: MX6 Cubox-i\n");

	return 0;
}

static bool is_mx6q(void)
{
	if (is_cpu_type(MXC_CPU_MX6Q) || is_cpu_type(MXC_CPU_MX6D))
		return true;
	else
		return false;
}

int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	if (is_hummingboard())
		setenv("board_name", "HUMMINGBOARD");
	else
		setenv("board_name", "CUBOXI");

	if (is_mx6q())
		setenv("board_rev", "MX6Q");
	else
		setenv("board_rev", "MX6DL");
#endif

	return 0;
}

#ifdef CONFIG_SPL_BUILD
#include <asm/arch/mx6-ddr.h>
static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
	.dram_sdclk_0 =  0x00020030,
	.dram_sdclk_1 =  0x00020030,
	.dram_cas =  0x00020030,
	.dram_ras =  0x00020030,
	.dram_reset =  0x00020030,
	.dram_sdcke0 =  0x00003000,
	.dram_sdcke1 =  0x00003000,
	.dram_sdba2 =  0x00000000,
	.dram_sdodt0 =  0x00003030,
	.dram_sdodt1 =  0x00003030,
	.dram_sdqs0 =  0x00000030,
	.dram_sdqs1 =  0x00000030,
	.dram_sdqs2 =  0x00000030,
	.dram_sdqs3 =  0x00000030,
	.dram_sdqs4 =  0x00000030,
	.dram_sdqs5 =  0x00000030,
	.dram_sdqs6 =  0x00000030,
	.dram_sdqs7 =  0x00000030,
	.dram_dqm0 =  0x00020030,
	.dram_dqm1 =  0x00020030,
	.dram_dqm2 =  0x00020030,
	.dram_dqm3 =  0x00020030,
	.dram_dqm4 =  0x00020030,
	.dram_dqm5 =  0x00020030,
	.dram_dqm6 =  0x00020030,
	.dram_dqm7 =  0x00020030,
};

static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
	.dram_sdclk_0 = 0x00000028,
	.dram_sdclk_1 = 0x00000028,
	.dram_cas =	0x00000028,
	.dram_ras =	0x00000028,
	.dram_reset =	0x000c0028,
	.dram_sdcke0 =	0x00003000,
	.dram_sdcke1 =	0x00003000,
	.dram_sdba2 =	0x00000000,
	.dram_sdodt0 =	0x00003030,
	.dram_sdodt1 =	0x00003030,
	.dram_sdqs0 =	0x00000028,
	.dram_sdqs1 =	0x00000028,
	.dram_sdqs2 =	0x00000028,
	.dram_sdqs3 =	0x00000028,
	.dram_sdqs4 =	0x00000028,
	.dram_sdqs5 =	0x00000028,
	.dram_sdqs6 =	0x00000028,
	.dram_sdqs7 =	0x00000028,
	.dram_dqm0 =	0x00000028,
	.dram_dqm1 =	0x00000028,
	.dram_dqm2 =	0x00000028,
	.dram_dqm3 =	0x00000028,
	.dram_dqm4 =	0x00000028,
	.dram_dqm5 =	0x00000028,
	.dram_dqm6 =	0x00000028,
	.dram_dqm7 =	0x00000028,
};

static const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
	.grp_ddr_type =  0x000C0000,
	.grp_ddrmode_ctl =  0x00020000,
	.grp_ddrpke =  0x00000000,
	.grp_addds =  0x00000030,
	.grp_ctlds =  0x00000030,
	.grp_ddrmode =  0x00020000,
	.grp_b0ds =  0x00000030,
	.grp_b1ds =  0x00000030,
	.grp_b2ds =  0x00000030,
	.grp_b3ds =  0x00000030,
	.grp_b4ds =  0x00000030,
	.grp_b5ds =  0x00000030,
	.grp_b6ds =  0x00000030,
	.grp_b7ds =  0x00000030,
};

static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
	.grp_ddr_type = 0x000c0000,
	.grp_ddrmode_ctl = 0x00020000,
	.grp_ddrpke = 0x00000000,
	.grp_addds = 0x00000028,
	.grp_ctlds = 0x00000028,
	.grp_ddrmode = 0x00020000,
	.grp_b0ds = 0x00000028,
	.grp_b1ds = 0x00000028,
	.grp_b2ds = 0x00000028,
	.grp_b3ds = 0x00000028,
	.grp_b4ds = 0x00000028,
	.grp_b5ds = 0x00000028,
	.grp_b6ds = 0x00000028,
	.grp_b7ds = 0x00000028,
};

/* microSOM with Dual processor and 1GB memory */
static const struct mx6_mmdc_calibration mx6q_1g_mmcd_calib = {
	.p0_mpwldectrl0 =  0x00000000,
	.p0_mpwldectrl1 =  0x00000000,
	.p1_mpwldectrl0 =  0x00000000,
	.p1_mpwldectrl1 =  0x00000000,
	.p0_mpdgctrl0 =    0x0314031c,
	.p0_mpdgctrl1 =    0x023e0304,
	.p1_mpdgctrl0 =    0x03240330,
	.p1_mpdgctrl1 =    0x03180260,
	.p0_mprddlctl =    0x3630323c,
	.p1_mprddlctl =    0x3436283a,
	.p0_mpwrdlctl =    0x36344038,
	.p1_mpwrdlctl =    0x422a423c,
};

/* microSOM with Quad processor and 2GB memory */
static const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
	.p0_mpwldectrl0 =  0x00000000,
	.p0_mpwldectrl1 =  0x00000000,
	.p1_mpwldectrl0 =  0x00000000,
	.p1_mpwldectrl1 =  0x00000000,
	.p0_mpdgctrl0 =    0x0314031c,
	.p0_mpdgctrl1 =    0x023e0304,
	.p1_mpdgctrl0 =    0x03240330,
	.p1_mpdgctrl1 =    0x03180260,
	.p0_mprddlctl =    0x3630323c,
	.p1_mprddlctl =    0x3436283a,
	.p0_mpwrdlctl =    0x36344038,
	.p1_mpwrdlctl =    0x422a423c,
};

/* microSOM with Solo processor and 512MB memory */
static const struct mx6_mmdc_calibration mx6dl_512m_mmcd_calib = {
	.p0_mpwldectrl0 = 0x0045004D,
	.p0_mpwldectrl1 = 0x003A0047,
	.p0_mpdgctrl0 =   0x023C0224,
	.p0_mpdgctrl1 =   0x02000220,
	.p0_mprddlctl =   0x44444846,
	.p0_mpwrdlctl =   0x32343032,
};

/* microSOM with Dual lite processor and 1GB memory */
static const struct mx6_mmdc_calibration mx6dl_1g_mmcd_calib = {
	.p0_mpwldectrl0 =  0x0045004D,
	.p0_mpwldectrl1 =  0x003A0047,
	.p1_mpwldectrl0 =  0x001F001F,
	.p1_mpwldectrl1 =  0x00210035,
	.p0_mpdgctrl0 =    0x023C0224,
	.p0_mpdgctrl1 =    0x02000220,
	.p1_mpdgctrl0 =    0x02200220,
	.p1_mpdgctrl1 =    0x02000220,
	.p0_mprddlctl =    0x44444846,
	.p1_mprddlctl =    0x4042463C,
	.p0_mpwrdlctl =    0x32343032,
	.p1_mpwrdlctl =    0x36363430,
};

static struct mx6_ddr3_cfg mem_ddr_2g = {
	.mem_speed = 1600,
	.density   = 2,
	.width     = 16,
	.banks     = 8,
	.rowaddr   = 14,
	.coladdr   = 10,
	.pagesz    = 2,
	.trcd      = 1375,
	.trcmin    = 4875,
	.trasmin   = 3500,
	.SRT       = 1,
};

static struct mx6_ddr3_cfg mem_ddr_4g = {
	.mem_speed = 1600,
	.density = 4,
	.width = 16,
	.banks = 8,
	.rowaddr = 15,
	.coladdr = 10,
	.pagesz = 2,
	.trcd = 1375,
	.trcmin = 4875,
	.trasmin = 3500,
};

static void ccgr_init(void)
{
	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;

	writel(0x00C03F3F, &ccm->CCGR0);
	writel(0x0030FC03, &ccm->CCGR1);
	writel(0x0FFFC000, &ccm->CCGR2);
	writel(0x3FF00000, &ccm->CCGR3);
	writel(0x00FFF300, &ccm->CCGR4);
	writel(0x0F0000C3, &ccm->CCGR5);
	writel(0x000003FF, &ccm->CCGR6);
}

static void gpr_init(void)
{
	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;

	/* enable AXI cache for VDOA/VPU/IPU */
	writel(0xF00000CF, &iomux->gpr[4]);
	/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
	writel(0x007F007F, &iomux->gpr[6]);
	writel(0x007F007F, &iomux->gpr[7]);
}

/*
 * This section requires the differentiation between Solidrun mx6 boards, but
 * for now, it will configure only for the mx6dual hummingboard version.
 */
static void spl_dram_init(int width)
{
	struct mx6_ddr_sysinfo sysinfo = {
		/* width of data bus: 0=16, 1=32, 2=64 */
		.dsize = width / 32,
		/* config for full 4GB range so that get_mem_size() works */
		.cs_density = 32,	/* 32Gb per CS */
		.ncs = 1,		/* single chip select */
		.cs1_mirror = 0,
		.rtt_wr = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Wr = RZQ/4 */
		.rtt_nom = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Nom = RZQ/4 */
		.walat = 1,	/* Write additional latency */
		.ralat = 5,	/* Read additional latency */
		.mif3_mode = 3,	/* Command prediction working mode */
		.bi_on = 1,	/* Bank interleaving enabled */
		.sde_to_rst = 0x10,	/* 14 cycles, 200us (JEDEC default) */
		.rst_to_cke = 0x23,	/* 33 cycles, 500us (JEDEC default) */
	};

	if (is_cpu_type(MXC_CPU_MX6D) || is_cpu_type(MXC_CPU_MX6Q))
		mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
	else
		mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);

	if (is_cpu_type(MXC_CPU_MX6D))
		mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
	else if (is_cpu_type(MXC_CPU_MX6Q))
		mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
	else if (is_cpu_type(MXC_CPU_MX6DL))
		mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
	else if (is_cpu_type(MXC_CPU_MX6SOLO))
		mx6_dram_cfg(&sysinfo, &mx6dl_512m_mmcd_calib, &mem_ddr_2g);
}

void board_init_f(ulong dummy)
{
	/* setup AIPS and disable watchdog */
	arch_cpu_init();

	ccgr_init();
	gpr_init();

	/* iomux and setup of i2c */
	board_early_init_f();

	/* setup GP timer */
	timer_init();

	/* UART clocks enabled and gd valid - init serial console */
	preloader_console_init();

	/* DDR initialization */
	if (is_cpu_type(MXC_CPU_MX6SOLO))
		spl_dram_init(32);
	else
		spl_dram_init(64);

	/* Clear the BSS. */
	memset(__bss_start, 0, __bss_end - __bss_start);

	/* load/boot image from boot device */
	board_init_r(NULL, 0);
}
#endif
Commit	Line	Data
b8ce6fe2 FE	1	/*
	2	* Copyright (C) 2015 Freescale Semiconductor, Inc.
	3	*
	4	* Author: Fabio Estevam <fabio.estevam@freescale.com>
	5	*
	6	* Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>
	7	*
	8	* Based on SPL code from Solidrun tree, which is:
	9	* Author: Tungyi Lin <tungyilin1127@gmail.com>
	10	*
	11	* Derived from EDM_CF_IMX6 code by TechNexion,Inc
	12	* Ported to SolidRun microSOM by Rabeeh Khoury <rabeeh@solid-run.com>
	13	*
	14	* SPDX-License-Identifier: GPL-2.0+
	15	*/
	16
	17	#include <asm/arch/clock.h>
	18	#include <asm/arch/imx-regs.h>
	19	#include <asm/arch/iomux.h>
	20	#include <asm/arch/mx6-pins.h>
f68a9c6b	21	#include <asm/arch/mxc_hdmi.h>
b8ce6fe2 FE	22	#include <asm/errno.h>
	23	#include <asm/gpio.h>
	24	#include <asm/imx-common/iomux-v3.h>
f68a9c6b	25	#include <asm/imx-common/video.h>
b8ce6fe2 FE	26	#include <mmc.h>
	27	#include <fsl_esdhc.h>
	28	#include <miiphy.h>
	29	#include <netdev.h>
	30	#include <asm/arch/crm_regs.h>
	31	#include <asm/io.h>
	32	#include <asm/arch/sys_proto.h>
b8ce6fe2	33	#include <spl.h>
e1d74379 FE	34	#include <usb.h>
e1d74379 FE	35	#include <usb/ehci-fsl.h>
b8ce6fe2 FE	36
	37	DECLARE_GLOBAL_DATA_PTR;
	38
	39	#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP \| \
	40	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| \
	41	PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	42
	43	#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP \| \
	44	PAD_CTL_SPEED_LOW \| PAD_CTL_DSE_80ohm \| \
	45	PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	46
	47	#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP \| \
	48	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| PAD_CTL_HYS)
	49
	50	#define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN \| \
	51	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| PAD_CTL_HYS)
	52
	53	#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) \| \
	54	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| PAD_CTL_SRE_FAST)
	55
	56	#define ETH_PHY_RESET IMX_GPIO_NR(4, 15)
e1d74379	57	#define USB_H1_VBUS IMX_GPIO_NR(1, 0)
b8ce6fe2 FE	58
	59	int dram_init(void)
	60	{
	61	gd->ram_size = imx_ddr_size();
	62	return 0;
	63	}
	64
	65	static iomux_v3_cfg_t const uart1_pads[] = {
cfdcc5f7 FE	66	IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
cfdcc5f7 FE	67	IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
b8ce6fe2 FE	68	};
	69
	70	static iomux_v3_cfg_t const usdhc2_pads[] = {
cfdcc5f7 FE	71	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	72	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	73	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	74	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	75	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	76	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
b8ce6fe2 FE	77	};
b8ce6fe2 FE	78
feb6cc5c FE	79	static iomux_v3_cfg_t const hb_cbi_sense[] = {
	80	/* These pins are for sensing if it is a CuBox-i or a HummingBoard */
	81	IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09 \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	82	IOMUX_PADS(PAD_EIM_DA4__GPIO3_IO04 \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	83	};
	84
e1d74379 FE	85	static iomux_v3_cfg_t const usb_pads[] = {
	86	IOMUX_PADS(PAD_GPIO_0__GPIO1_IO00 \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	87	};
	88
b8ce6fe2 FE	89	static void setup_iomux_uart(void)
b8ce6fe2 FE	90	{
cfdcc5f7	91	SETUP_IOMUX_PADS(uart1_pads);
b8ce6fe2 FE	92	}
	93
	94	static struct fsl_esdhc_cfg usdhc_cfg[1] = {
	95	{USDHC2_BASE_ADDR},
	96	};
	97
	98	int board_mmc_getcd(struct mmc *mmc)
	99	{
	100	return 1; /* uSDHC2 is always present */
	101	}
	102
	103	int board_mmc_init(bd_t *bis)
	104	{
cfdcc5f7	105	SETUP_IOMUX_PADS(usdhc2_pads);
b8ce6fe2 FE	106	usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
	107	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
	108	gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
	109
	110	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
	111	}
	112
	113	static iomux_v3_cfg_t const enet_pads[] = {
cfdcc5f7 FE	114	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
cfdcc5f7 FE	115	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
b8ce6fe2	116	/* AR8035 reset */
cfdcc5f7	117	IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
b8ce6fe2	118	/* AR8035 interrupt */
cfdcc5f7	119	IOMUX_PADS(PAD_DI0_PIN2__GPIO4_IO18 \| MUX_PAD_CTRL(NO_PAD_CTRL)),
b8ce6fe2	120	/* GPIO16 -> AR8035 25MHz */
cfdcc5f7 FE	121	IOMUX_PADS(PAD_GPIO_16__ENET_REF_CLK \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	122	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	123	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	124	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	125	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	126	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	127	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
b8ce6fe2	128	/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
cfdcc5f7 FE	129	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK \| MUX_PAD_CTRL(ENET_PAD_CTRL_CLK)),
	130	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	131	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
	132	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
	133	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	134	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	135	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
b8ce6fe2 FE	136	};
	137
	138	static void setup_iomux_enet(void)
	139	{
cfdcc5f7	140	SETUP_IOMUX_PADS(enet_pads);
b8ce6fe2 FE	141
	142	gpio_direction_output(ETH_PHY_RESET, 0);
	143	mdelay(2);
	144	gpio_set_value(ETH_PHY_RESET, 1);
	145	}
	146
	147	int board_phy_config(struct phy_device *phydev)
	148	{
	149	if (phydev->drv->config)
	150	phydev->drv->config(phydev);
	151
	152	return 0;
	153	}
	154
	155	int board_eth_init(bd_t *bis)
	156	{
	157	struct iomuxc const iomuxc_regs = (struct iomuxc )IOMUXC_BASE_ADDR;
	158
	159	int ret = enable_fec_anatop_clock(ENET_25MHZ);
	160	if (ret)
	161	return ret;
	162
	163	/* set gpr1[ENET_CLK_SEL] */
	164	setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
	165
	166	setup_iomux_enet();
	167
	168	return cpu_eth_init(bis);
	169	}
	170
f68a9c6b FE	171	#ifdef CONFIG_VIDEO_IPUV3
	172	static void do_enable_hdmi(struct display_info_t const *dev)
	173	{
	174	imx_enable_hdmi_phy();
	175	}
	176
	177	struct display_info_t const displays[] = {
	178	{
	179	.bus = -1,
	180	.addr = 0,
	181	.pixfmt = IPU_PIX_FMT_RGB24,
	182	.detect = detect_hdmi,
	183	.enable = do_enable_hdmi,
	184	.mode = {
	185	.name = "HDMI",
	186	/* 1024x768@60Hz (VESA)*/
	187	.refresh = 60,
	188	.xres = 1024,
	189	.yres = 768,
	190	.pixclock = 15384,
	191	.left_margin = 160,
	192	.right_margin = 24,
	193	.upper_margin = 29,
	194	.lower_margin = 3,
	195	.hsync_len = 136,
	196	.vsync_len = 6,
	197	.sync = FB_SYNC_EXT,
	198	.vmode = FB_VMODE_NONINTERLACED
	199	}
	200	}
	201	};
	202
	203	size_t display_count = ARRAY_SIZE(displays);
	204
	205	static int setup_display(void)
	206	{
	207	struct mxc_ccm_reg ccm = (struct mxc_ccm_reg )CCM_BASE_ADDR;
	208	int reg;
	209	int timeout = 100000;
	210
	211	enable_ipu_clock();
	212	imx_setup_hdmi();
	213
	214	/* set video pll to 455MHz (24MHz * (37+11/12) / 2) */
	215	setbits_le32(&ccm->analog_pll_video, BM_ANADIG_PLL_VIDEO_POWERDOWN);
	216
	217	reg = readl(&ccm->analog_pll_video);
	218	reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
	219	reg \|= BF_ANADIG_PLL_VIDEO_DIV_SELECT(37);
	220	reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
	221	reg \|= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(1);
	222	writel(reg, &ccm->analog_pll_video);
	223
	224	writel(BF_ANADIG_PLL_VIDEO_NUM_A(11), &ccm->analog_pll_video_num);
	225	writel(BF_ANADIG_PLL_VIDEO_DENOM_B(12), &ccm->analog_pll_video_denom);
	226
	227	reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
	228	writel(reg, &ccm->analog_pll_video);
	229
	230	while (timeout--)
	231	if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
	232	break;
	233	if (timeout < 0) {
	234	printf("Warning: video pll lock timeout!\n");
235	return -ETIMEDOUT;
236	}
237
238	reg = readl(&ccm->analog_pll_video);
239	reg \|= BM_ANADIG_PLL_VIDEO_ENABLE;
240	reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
241	writel(reg, &ccm->analog_pll_video);
242
243	/* gate ipu1_di0_clk */
244	clrbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
245
246	/* select video_pll clock / 7 for ipu1_di0_clk -> 65MHz pixclock */
247	reg = readl(&ccm->chsccdr);
248	reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK \|
249	MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK \|
250	MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
251	reg \|= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET) \|
252	(6 << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET) \|
253	(0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
254	writel(reg, &ccm->chsccdr);
255
256	/* enable ipu1_di0_clk */
257	setbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
258
259	return 0;
260	}
261	#endif /* CONFIG_VIDEO_IPUV3 */
262
e1d74379 FE	263	#ifdef CONFIG_USB_EHCI_MX6
	264	static void setup_usb(void)
	265	{
	266	SETUP_IOMUX_PADS(usb_pads);
	267	}
	268
	269	int board_ehci_hcd_init(int port)
	270	{
	271	if (port == 1)
	272	gpio_direction_output(USB_H1_VBUS, 1);
	273
	274	return 0;
	275	}
	276	#endif
	277
b8ce6fe2 FE	278	int board_early_init_f(void)
b8ce6fe2 FE	279	{
f68a9c6b	280	int ret = 0;
b8ce6fe2	281	setup_iomux_uart();
f68a9c6b FE	282
	283	#ifdef CONFIG_VIDEO_IPUV3
	284	ret = setup_display();
	285	#endif
e1d74379 FE	286
	287	#ifdef CONFIG_USB_EHCI_MX6
	288	setup_usb();
	289	#endif
f68a9c6b	290	return ret;
b8ce6fe2 FE	291	}
	292
	293	int board_init(void)
	294	{
	295	/* address of boot parameters */
	296	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
	297
	298	return 0;
	299	}
	300
feb6cc5c FE	301	static bool is_hummingboard(void)
	302	{
	303	int val1, val2;
	304
	305	SETUP_IOMUX_PADS(hb_cbi_sense);
	306
	307	gpio_direction_input(IMX_GPIO_NR(4, 9));
	308	gpio_direction_input(IMX_GPIO_NR(3, 4));
	309
	310	val1 = gpio_get_value(IMX_GPIO_NR(4, 9));
	311	val2 = gpio_get_value(IMX_GPIO_NR(3, 4));
	312
	313	/*
	314	* Machine selection -
	315	* Machine val1, val2
	316	* -------------------------
	317	* HB rev 3.x x 0
	318	* CBi 0 1
	319	* HB 1 1
	320	*/
	321
	322	if (val2 == 0)
	323	return true;
	324	else if (val1 == 0)
	325	return false;
	326	else
	327	return true;
	328	}
	329
b8ce6fe2 FE	330	int checkboard(void)
b8ce6fe2 FE	331	{
feb6cc5c FE	332	if (is_hummingboard())
	333	puts("Board: MX6 Hummingboard\n");
	334	else
	335	puts("Board: MX6 Cubox-i\n");
	336
b8ce6fe2 FE	337	return 0;
	338	}
	339
205d5869 FE	340	static bool is_mx6q(void)
	341	{
	342	if (is_cpu_type(MXC_CPU_MX6Q) \|\| is_cpu_type(MXC_CPU_MX6D))
	343	return true;
	344	else
	345	return false;
	346	}
	347
	348	int board_late_init(void)
	349	{
	350	#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	351	if (is_hummingboard())
	352	setenv("board_name", "HUMMINGBOARD");
	353	else
	354	setenv("board_name", "CUBOXI");
	355
	356	if (is_mx6q())
	357	setenv("board_rev", "MX6Q");
	358	else
	359	setenv("board_rev", "MX6DL");
	360	#endif
	361
	362	return 0;
	363	}
	364
b8ce6fe2	365	#ifdef CONFIG_SPL_BUILD
cfdcc5f7	366	#include <asm/arch/mx6-ddr.h>
8cb6817e	367	static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
b8ce6fe2 FE	368	.dram_sdclk_0 = 0x00020030,
	369	.dram_sdclk_1 = 0x00020030,
	370	.dram_cas = 0x00020030,
	371	.dram_ras = 0x00020030,
	372	.dram_reset = 0x00020030,
	373	.dram_sdcke0 = 0x00003000,
	374	.dram_sdcke1 = 0x00003000,
	375	.dram_sdba2 = 0x00000000,
	376	.dram_sdodt0 = 0x00003030,
	377	.dram_sdodt1 = 0x00003030,
	378	.dram_sdqs0 = 0x00000030,
	379	.dram_sdqs1 = 0x00000030,
	380	.dram_sdqs2 = 0x00000030,
	381	.dram_sdqs3 = 0x00000030,
	382	.dram_sdqs4 = 0x00000030,
	383	.dram_sdqs5 = 0x00000030,
	384	.dram_sdqs6 = 0x00000030,
	385	.dram_sdqs7 = 0x00000030,
	386	.dram_dqm0 = 0x00020030,
	387	.dram_dqm1 = 0x00020030,
	388	.dram_dqm2 = 0x00020030,
	389	.dram_dqm3 = 0x00020030,
	390	.dram_dqm4 = 0x00020030,
	391	.dram_dqm5 = 0x00020030,
	392	.dram_dqm6 = 0x00020030,
	393	.dram_dqm7 = 0x00020030,
	394	};
	395
8cb6817e FE	396	static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
	397	.dram_sdclk_0 = 0x00000028,
	398	.dram_sdclk_1 = 0x00000028,
	399	.dram_cas = 0x00000028,
	400	.dram_ras = 0x00000028,
	401	.dram_reset = 0x000c0028,
	402	.dram_sdcke0 = 0x00003000,
	403	.dram_sdcke1 = 0x00003000,
	404	.dram_sdba2 = 0x00000000,
	405	.dram_sdodt0 = 0x00003030,
	406	.dram_sdodt1 = 0x00003030,
	407	.dram_sdqs0 = 0x00000028,
	408	.dram_sdqs1 = 0x00000028,
	409	.dram_sdqs2 = 0x00000028,
	410	.dram_sdqs3 = 0x00000028,
	411	.dram_sdqs4 = 0x00000028,
	412	.dram_sdqs5 = 0x00000028,
	413	.dram_sdqs6 = 0x00000028,
	414	.dram_sdqs7 = 0x00000028,
	415	.dram_dqm0 = 0x00000028,
	416	.dram_dqm1 = 0x00000028,
	417	.dram_dqm2 = 0x00000028,
	418	.dram_dqm3 = 0x00000028,
	419	.dram_dqm4 = 0x00000028,
	420	.dram_dqm5 = 0x00000028,
	421	.dram_dqm6 = 0x00000028,
	422	.dram_dqm7 = 0x00000028,
	423	};
	424
	425	static const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
b8ce6fe2 FE	426	.grp_ddr_type = 0x000C0000,
	427	.grp_ddrmode_ctl = 0x00020000,
	428	.grp_ddrpke = 0x00000000,
	429	.grp_addds = 0x00000030,
	430	.grp_ctlds = 0x00000030,
	431	.grp_ddrmode = 0x00020000,
	432	.grp_b0ds = 0x00000030,
	433	.grp_b1ds = 0x00000030,
	434	.grp_b2ds = 0x00000030,
	435	.grp_b3ds = 0x00000030,
	436	.grp_b4ds = 0x00000030,
	437	.grp_b5ds = 0x00000030,
	438	.grp_b6ds = 0x00000030,
	439	.grp_b7ds = 0x00000030,
	440	};
	441
8cb6817e FE	442	static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
	443	.grp_ddr_type = 0x000c0000,
	444	.grp_ddrmode_ctl = 0x00020000,
	445	.grp_ddrpke = 0x00000000,
	446	.grp_addds = 0x00000028,
	447	.grp_ctlds = 0x00000028,
	448	.grp_ddrmode = 0x00020000,
	449	.grp_b0ds = 0x00000028,
	450	.grp_b1ds = 0x00000028,
	451	.grp_b2ds = 0x00000028,
	452	.grp_b3ds = 0x00000028,
	453	.grp_b4ds = 0x00000028,
	454	.grp_b5ds = 0x00000028,
	455	.grp_b6ds = 0x00000028,
	456	.grp_b7ds = 0x00000028,
	457	};
	458
	459	/* microSOM with Dual processor and 1GB memory */
	460	static const struct mx6_mmdc_calibration mx6q_1g_mmcd_calib = {
b8ce6fe2 FE	461	.p0_mpwldectrl0 = 0x00000000,
	462	.p0_mpwldectrl1 = 0x00000000,
	463	.p1_mpwldectrl0 = 0x00000000,
	464	.p1_mpwldectrl1 = 0x00000000,
	465	.p0_mpdgctrl0 = 0x0314031c,
	466	.p0_mpdgctrl1 = 0x023e0304,
	467	.p1_mpdgctrl0 = 0x03240330,
	468	.p1_mpdgctrl1 = 0x03180260,
	469	.p0_mprddlctl = 0x3630323c,
	470	.p1_mprddlctl = 0x3436283a,
	471	.p0_mpwrdlctl = 0x36344038,
	472	.p1_mpwrdlctl = 0x422a423c,
	473	};
	474
8cb6817e FE	475	/* microSOM with Quad processor and 2GB memory */
	476	static const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
	477	.p0_mpwldectrl0 = 0x00000000,
	478	.p0_mpwldectrl1 = 0x00000000,
	479	.p1_mpwldectrl0 = 0x00000000,
	480	.p1_mpwldectrl1 = 0x00000000,
	481	.p0_mpdgctrl0 = 0x0314031c,
	482	.p0_mpdgctrl1 = 0x023e0304,
	483	.p1_mpdgctrl0 = 0x03240330,
	484	.p1_mpdgctrl1 = 0x03180260,
	485	.p0_mprddlctl = 0x3630323c,
	486	.p1_mprddlctl = 0x3436283a,
	487	.p0_mpwrdlctl = 0x36344038,
	488	.p1_mpwrdlctl = 0x422a423c,
	489	};
	490
	491	/* microSOM with Solo processor and 512MB memory */
	492	static const struct mx6_mmdc_calibration mx6dl_512m_mmcd_calib = {
	493	.p0_mpwldectrl0 = 0x0045004D,
	494	.p0_mpwldectrl1 = 0x003A0047,
	495	.p0_mpdgctrl0 = 0x023C0224,
	496	.p0_mpdgctrl1 = 0x02000220,
	497	.p0_mprddlctl = 0x44444846,
	498	.p0_mpwrdlctl = 0x32343032,
	499	};
	500
	501	/* microSOM with Dual lite processor and 1GB memory */
	502	static const struct mx6_mmdc_calibration mx6dl_1g_mmcd_calib = {
	503	.p0_mpwldectrl0 = 0x0045004D,
	504	.p0_mpwldectrl1 = 0x003A0047,
	505	.p1_mpwldectrl0 = 0x001F001F,
	506	.p1_mpwldectrl1 = 0x00210035,
	507	.p0_mpdgctrl0 = 0x023C0224,
	508	.p0_mpdgctrl1 = 0x02000220,
	509	.p1_mpdgctrl0 = 0x02200220,
	510	.p1_mpdgctrl1 = 0x02000220,
	511	.p0_mprddlctl = 0x44444846,
	512	.p1_mprddlctl = 0x4042463C,
	513	.p0_mpwrdlctl = 0x32343032,
	514	.p1_mpwrdlctl = 0x36363430,
	515	};
	516
	517	static struct mx6_ddr3_cfg mem_ddr_2g = {
b8ce6fe2 FE	518	.mem_speed = 1600,
	519	.density = 2,
	520	.width = 16,
	521	.banks = 8,
	522	.rowaddr = 14,
	523	.coladdr = 10,
	524	.pagesz = 2,
	525	.trcd = 1375,
	526	.trcmin = 4875,
	527	.trasmin = 3500,
	528	.SRT = 1,
	529	};
	530
8cb6817e FE	531	static struct mx6_ddr3_cfg mem_ddr_4g = {
	532	.mem_speed = 1600,
	533	.density = 4,
	534	.width = 16,
	535	.banks = 8,
	536	.rowaddr = 15,
	537	.coladdr = 10,
	538	.pagesz = 2,
	539	.trcd = 1375,
	540	.trcmin = 4875,
	541	.trasmin = 3500,
	542	};
	543
b8ce6fe2 FE	544	static void ccgr_init(void)
	545	{
	546	struct mxc_ccm_reg ccm = (struct mxc_ccm_reg )CCM_BASE_ADDR;
	547
	548	writel(0x00C03F3F, &ccm->CCGR0);
	549	writel(0x0030FC03, &ccm->CCGR1);
	550	writel(0x0FFFC000, &ccm->CCGR2);
	551	writel(0x3FF00000, &ccm->CCGR3);
	552	writel(0x00FFF300, &ccm->CCGR4);
	553	writel(0x0F0000C3, &ccm->CCGR5);
	554	writel(0x000003FF, &ccm->CCGR6);
	555	}
	556
	557	static void gpr_init(void)
	558	{
	559	struct iomuxc iomux = (struct iomuxc )IOMUXC_BASE_ADDR;
	560
	561	/* enable AXI cache for VDOA/VPU/IPU */
	562	writel(0xF00000CF, &iomux->gpr[4]);
	563	/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
	564	writel(0x007F007F, &iomux->gpr[6]);
	565	writel(0x007F007F, &iomux->gpr[7]);
	566	}
	567
	568	/*
	569	* This section requires the differentiation between Solidrun mx6 boards, but
	570	* for now, it will configure only for the mx6dual hummingboard version.
	571	*/
8cb6817e	572	static void spl_dram_init(int width)
b8ce6fe2 FE	573	{
	574	struct mx6_ddr_sysinfo sysinfo = {
	575	/* width of data bus: 0=16, 1=32, 2=64 */
8cb6817e	576	.dsize = width / 32,
b8ce6fe2 FE	577	/* config for full 4GB range so that get_mem_size() works */
	578	.cs_density = 32, /* 32Gb per CS */
	579	.ncs = 1, /* single chip select */
	580	.cs1_mirror = 0,
	581	.rtt_wr = 1 /DDR3_RTT_60_OHM/, /* RTT_Wr = RZQ/4 */
	582	.rtt_nom = 1 /DDR3_RTT_60_OHM/, /* RTT_Nom = RZQ/4 */
	583	.walat = 1, /* Write additional latency */
	584	.ralat = 5, /* Read additional latency */
	585	.mif3_mode = 3, /* Command prediction working mode */
	586	.bi_on = 1, /* Bank interleaving enabled */
	587	.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
	588	.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
	589	};
	590
8cb6817e FE	591	if (is_cpu_type(MXC_CPU_MX6D) \|\| is_cpu_type(MXC_CPU_MX6Q))
	592	mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
	593	else
	594	mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);
	595
	596	if (is_cpu_type(MXC_CPU_MX6D))
	597	mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
	598	else if (is_cpu_type(MXC_CPU_MX6Q))
	599	mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
	600	else if (is_cpu_type(MXC_CPU_MX6DL))
	601	mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
	602	else if (is_cpu_type(MXC_CPU_MX6SOLO))
	603	mx6_dram_cfg(&sysinfo, &mx6dl_512m_mmcd_calib, &mem_ddr_2g);
b8ce6fe2 FE	604	}
	605
	606	void board_init_f(ulong dummy)
	607	{
	608	/* setup AIPS and disable watchdog */
	609	arch_cpu_init();
	610
	611	ccgr_init();
	612	gpr_init();
	613
	614	/* iomux and setup of i2c */
	615	board_early_init_f();
	616
	617	/* setup GP timer */
	618	timer_init();
	619
	620	/* UART clocks enabled and gd valid - init serial console */
	621	preloader_console_init();
	622
	623	/* DDR initialization */
8cb6817e FE	624	if (is_cpu_type(MXC_CPU_MX6SOLO))
	625	spl_dram_init(32);
	626	else
	627	spl_dram_init(64);
b8ce6fe2 FE	628
	629	/* Clear the BSS. */
	630	memset(__bss_start, 0, __bss_end - __bss_start);
	631
	632	/* load/boot image from boot device */
	633	board_init_r(NULL, 0);
	634	}
	635	#endif