[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 <malloc.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;
}

/* On Cuboxi Ethernet PHY can be located at addresses 0x0 or 0x4 */
#define ETH_PHY_MASK	((1 << 0x0) | (1 << 0x4))

int board_eth_init(bd_t *bis)
{
	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
	struct mii_dev *bus;
	struct phy_device *phydev;

	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();

	bus = fec_get_miibus(IMX_FEC_BASE, -1);
	if (!bus)
		return -EINVAL;

	phydev = phy_find_by_mask(bus, ETH_PHY_MASK, PHY_INTERFACE_MODE_RGMII);
	if (!phydev) {
		ret = -EINVAL;
		goto free_bus;
	}

	debug("using phy at address %d\n", phydev->addr);
	ret = fec_probe(bis, -1, IMX_FEC_BASE, bus, phydev);
	if (ret)
		goto free_phydev;

	return 0;

free_phydev:
	free(phydev);
free_bus:
	free(bus);
	return ret;
}

#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>
b8ce6fe2 FE	27	#include <fsl_esdhc.h>
712be3ee	28	#include <malloc.h>
b8ce6fe2 FE	29	#include <miiphy.h>
	30	#include <netdev.h>
	31	#include <asm/arch/crm_regs.h>
	32	#include <asm/io.h>
	33	#include <asm/arch/sys_proto.h>
b8ce6fe2	34	#include <spl.h>
e1d74379 FE	35	#include <usb.h>
e1d74379 FE	36	#include <usb/ehci-fsl.h>
b8ce6fe2 FE	37
	38	DECLARE_GLOBAL_DATA_PTR;
	39
	40	#define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP \| \
	41	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| \
	42	PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	43
	44	#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP \| \
	45	PAD_CTL_SPEED_LOW \| PAD_CTL_DSE_80ohm \| \
	46	PAD_CTL_SRE_FAST \| PAD_CTL_HYS)
	47
	48	#define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP \| \
	49	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| PAD_CTL_HYS)
	50
	51	#define ENET_PAD_CTRL_PD (PAD_CTL_PUS_100K_DOWN \| \
	52	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| PAD_CTL_HYS)
	53
	54	#define ENET_PAD_CTRL_CLK ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) \| \
	55	PAD_CTL_SPEED_MED \| PAD_CTL_DSE_40ohm \| PAD_CTL_SRE_FAST)
	56
	57	#define ETH_PHY_RESET IMX_GPIO_NR(4, 15)
e1d74379	58	#define USB_H1_VBUS IMX_GPIO_NR(1, 0)
b8ce6fe2 FE	59
	60	int dram_init(void)
	61	{
	62	gd->ram_size = imx_ddr_size();
	63	return 0;
	64	}
	65
	66	static iomux_v3_cfg_t const uart1_pads[] = {
cfdcc5f7 FE	67	IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
cfdcc5f7 FE	68	IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA \| MUX_PAD_CTRL(UART_PAD_CTRL)),
b8ce6fe2 FE	69	};
	70
	71	static iomux_v3_cfg_t const usdhc2_pads[] = {
cfdcc5f7 FE	72	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	73	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	74	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	75	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	76	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	77	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3 \| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
b8ce6fe2 FE	78	};
b8ce6fe2 FE	79
feb6cc5c FE	80	static iomux_v3_cfg_t const hb_cbi_sense[] = {
	81	/* These pins are for sensing if it is a CuBox-i or a HummingBoard */
	82	IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09 \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	83	IOMUX_PADS(PAD_EIM_DA4__GPIO3_IO04 \| MUX_PAD_CTRL(UART_PAD_CTRL)),
	84	};
	85
e1d74379 FE	86	static iomux_v3_cfg_t const usb_pads[] = {
	87	IOMUX_PADS(PAD_GPIO_0__GPIO1_IO00 \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	88	};
	89
b8ce6fe2 FE	90	static void setup_iomux_uart(void)
b8ce6fe2 FE	91	{
cfdcc5f7	92	SETUP_IOMUX_PADS(uart1_pads);
b8ce6fe2 FE	93	}
	94
	95	static struct fsl_esdhc_cfg usdhc_cfg[1] = {
	96	{USDHC2_BASE_ADDR},
	97	};
	98
	99	int board_mmc_getcd(struct mmc *mmc)
	100	{
	101	return 1; /* uSDHC2 is always present */
	102	}
	103
	104	int board_mmc_init(bd_t *bis)
	105	{
cfdcc5f7	106	SETUP_IOMUX_PADS(usdhc2_pads);
b8ce6fe2 FE	107	usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
	108	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
	109	gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
	110
	111	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
	112	}
	113
	114	static iomux_v3_cfg_t const enet_pads[] = {
cfdcc5f7 FE	115	IOMUX_PADS(PAD_ENET_MDIO__ENET_MDIO \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
cfdcc5f7 FE	116	IOMUX_PADS(PAD_ENET_MDC__ENET_MDC \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
b8ce6fe2	117	/* AR8035 reset */
cfdcc5f7	118	IOMUX_PADS(PAD_KEY_ROW4__GPIO4_IO15 \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
b8ce6fe2	119	/* AR8035 interrupt */
cfdcc5f7	120	IOMUX_PADS(PAD_DI0_PIN2__GPIO4_IO18 \| MUX_PAD_CTRL(NO_PAD_CTRL)),
b8ce6fe2	121	/* GPIO16 -> AR8035 25MHz */
cfdcc5f7 FE	122	IOMUX_PADS(PAD_GPIO_16__ENET_REF_CLK \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	123	IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC \| MUX_PAD_CTRL(NO_PAD_CTRL)),
	124	IOMUX_PADS(PAD_RGMII_TD0__RGMII_TD0 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	125	IOMUX_PADS(PAD_RGMII_TD1__RGMII_TD1 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	126	IOMUX_PADS(PAD_RGMII_TD2__RGMII_TD2 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	127	IOMUX_PADS(PAD_RGMII_TD3__RGMII_TD3 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	128	IOMUX_PADS(PAD_RGMII_TX_CTL__RGMII_TX_CTL \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
b8ce6fe2	129	/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
cfdcc5f7 FE	130	IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK \| MUX_PAD_CTRL(ENET_PAD_CTRL_CLK)),
	131	IOMUX_PADS(PAD_RGMII_RXC__RGMII_RXC \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	132	IOMUX_PADS(PAD_RGMII_RD0__RGMII_RD0 \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
	133	IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
	134	IOMUX_PADS(PAD_RGMII_RD2__RGMII_RD2 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	135	IOMUX_PADS(PAD_RGMII_RD3__RGMII_RD3 \| MUX_PAD_CTRL(ENET_PAD_CTRL)),
	136	IOMUX_PADS(PAD_RGMII_RX_CTL__RGMII_RX_CTL \| MUX_PAD_CTRL(ENET_PAD_CTRL_PD)),
b8ce6fe2 FE	137	};
	138
	139	static void setup_iomux_enet(void)
	140	{
cfdcc5f7	141	SETUP_IOMUX_PADS(enet_pads);
b8ce6fe2 FE	142
	143	gpio_direction_output(ETH_PHY_RESET, 0);
	144	mdelay(2);
	145	gpio_set_value(ETH_PHY_RESET, 1);
	146	}
	147
	148	int board_phy_config(struct phy_device *phydev)
	149	{
	150	if (phydev->drv->config)
	151	phydev->drv->config(phydev);
	152
	153	return 0;
	154	}
	155
712be3ee FE	156	/* On Cuboxi Ethernet PHY can be located at addresses 0x0 or 0x4 */
	157	#define ETH_PHY_MASK ((1 << 0x0) \| (1 << 0x4))
	158
b8ce6fe2 FE	159	int board_eth_init(bd_t *bis)
	160	{
	161	struct iomuxc const iomuxc_regs = (struct iomuxc )IOMUXC_BASE_ADDR;
712be3ee FE	162	struct mii_dev *bus;
712be3ee FE	163	struct phy_device *phydev;
b8ce6fe2 FE	164
	165	int ret = enable_fec_anatop_clock(ENET_25MHZ);
	166	if (ret)
	167	return ret;
	168
	169	/* set gpr1[ENET_CLK_SEL] */
	170	setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
	171
	172	setup_iomux_enet();
	173
712be3ee FE	174	bus = fec_get_miibus(IMX_FEC_BASE, -1);
	175	if (!bus)
	176	return -EINVAL;
	177
	178	phydev = phy_find_by_mask(bus, ETH_PHY_MASK, PHY_INTERFACE_MODE_RGMII);
	179	if (!phydev) {
	180	ret = -EINVAL;
	181	goto free_bus;
	182	}
	183
	184	debug("using phy at address %d\n", phydev->addr);
	185	ret = fec_probe(bis, -1, IMX_FEC_BASE, bus, phydev);
	186	if (ret)
	187	goto free_phydev;
	188
	189	return 0;
	190
	191	free_phydev:
	192	free(phydev);
	193	free_bus:
	194	free(bus);
	195	return ret;
b8ce6fe2 FE	196	}
b8ce6fe2 FE	197
f68a9c6b FE	198	#ifdef CONFIG_VIDEO_IPUV3
	199	static void do_enable_hdmi(struct display_info_t const *dev)
	200	{
	201	imx_enable_hdmi_phy();
	202	}
	203
	204	struct display_info_t const displays[] = {
	205	{
	206	.bus = -1,
	207	.addr = 0,
	208	.pixfmt = IPU_PIX_FMT_RGB24,
	209	.detect = detect_hdmi,
	210	.enable = do_enable_hdmi,
	211	.mode = {
	212	.name = "HDMI",
	213	/* 1024x768@60Hz (VESA)*/
	214	.refresh = 60,
	215	.xres = 1024,
	216	.yres = 768,
	217	.pixclock = 15384,
	218	.left_margin = 160,
	219	.right_margin = 24,
	220	.upper_margin = 29,
	221	.lower_margin = 3,
	222	.hsync_len = 136,
	223	.vsync_len = 6,
	224	.sync = FB_SYNC_EXT,
	225	.vmode = FB_VMODE_NONINTERLACED
	226	}
	227	}
	228	};
	229
	230	size_t display_count = ARRAY_SIZE(displays);
	231
	232	static int setup_display(void)
	233	{
	234	struct mxc_ccm_reg ccm = (struct mxc_ccm_reg )CCM_BASE_ADDR;
	235	int reg;
	236	int timeout = 100000;
	237
	238	enable_ipu_clock();
	239	imx_setup_hdmi();
	240
	241	/* set video pll to 455MHz (24MHz * (37+11/12) / 2) */
	242	setbits_le32(&ccm->analog_pll_video, BM_ANADIG_PLL_VIDEO_POWERDOWN);
	243
	244	reg = readl(&ccm->analog_pll_video);
	245	reg &= ~BM_ANADIG_PLL_VIDEO_DIV_SELECT;
	246	reg \|= BF_ANADIG_PLL_VIDEO_DIV_SELECT(37);
	247	reg &= ~BM_ANADIG_PLL_VIDEO_POST_DIV_SELECT;
	248	reg \|= BF_ANADIG_PLL_VIDEO_POST_DIV_SELECT(1);
	249	writel(reg, &ccm->analog_pll_video);
	250
	251	writel(BF_ANADIG_PLL_VIDEO_NUM_A(11), &ccm->analog_pll_video_num);
	252	writel(BF_ANADIG_PLL_VIDEO_DENOM_B(12), &ccm->analog_pll_video_denom);
	253
	254	reg &= ~BM_ANADIG_PLL_VIDEO_POWERDOWN;
	255	writel(reg, &ccm->analog_pll_video);
	256
	257	while (timeout--)
	258	if (readl(&ccm->analog_pll_video) & BM_ANADIG_PLL_VIDEO_LOCK)
	259	break;
	260	if (timeout < 0) {
	261	printf("Warning: video pll lock timeout!\n");
262	return -ETIMEDOUT;
263	}
264
265	reg = readl(&ccm->analog_pll_video);
266	reg \|= BM_ANADIG_PLL_VIDEO_ENABLE;
267	reg &= ~BM_ANADIG_PLL_VIDEO_BYPASS;
268	writel(reg, &ccm->analog_pll_video);
269
270	/* gate ipu1_di0_clk */
271	clrbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
272
273	/* select video_pll clock / 7 for ipu1_di0_clk -> 65MHz pixclock */
274	reg = readl(&ccm->chsccdr);
275	reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK \|
276	MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK \|
277	MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
278	reg \|= (2 << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET) \|
279	(6 << MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET) \|
280	(0 << MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
281	writel(reg, &ccm->chsccdr);
282
283	/* enable ipu1_di0_clk */
284	setbits_le32(&ccm->CCGR3, MXC_CCM_CCGR3_LDB_DI0_MASK);
285
286	return 0;
287	}
288	#endif /* CONFIG_VIDEO_IPUV3 */
289
e1d74379 FE	290	#ifdef CONFIG_USB_EHCI_MX6
	291	static void setup_usb(void)
	292	{
	293	SETUP_IOMUX_PADS(usb_pads);
	294	}
	295
	296	int board_ehci_hcd_init(int port)
	297	{
	298	if (port == 1)
	299	gpio_direction_output(USB_H1_VBUS, 1);
	300
	301	return 0;
	302	}
	303	#endif
	304
b8ce6fe2 FE	305	int board_early_init_f(void)
b8ce6fe2 FE	306	{
f68a9c6b	307	int ret = 0;
b8ce6fe2	308	setup_iomux_uart();
f68a9c6b FE	309
	310	#ifdef CONFIG_VIDEO_IPUV3
	311	ret = setup_display();
	312	#endif
e1d74379 FE	313
	314	#ifdef CONFIG_USB_EHCI_MX6
	315	setup_usb();
	316	#endif
f68a9c6b	317	return ret;
b8ce6fe2 FE	318	}
	319
	320	int board_init(void)
	321	{
	322	/* address of boot parameters */
	323	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
	324
	325	return 0;
	326	}
	327
feb6cc5c FE	328	static bool is_hummingboard(void)
	329	{
	330	int val1, val2;
	331
	332	SETUP_IOMUX_PADS(hb_cbi_sense);
	333
	334	gpio_direction_input(IMX_GPIO_NR(4, 9));
	335	gpio_direction_input(IMX_GPIO_NR(3, 4));
	336
	337	val1 = gpio_get_value(IMX_GPIO_NR(4, 9));
	338	val2 = gpio_get_value(IMX_GPIO_NR(3, 4));
	339
	340	/*
	341	* Machine selection -
	342	* Machine val1, val2
	343	* -------------------------
	344	* HB rev 3.x x 0
	345	* CBi 0 1
	346	* HB 1 1
	347	*/
	348
	349	if (val2 == 0)
	350	return true;
	351	else if (val1 == 0)
	352	return false;
	353	else
	354	return true;
	355	}
	356
b8ce6fe2 FE	357	int checkboard(void)
b8ce6fe2 FE	358	{
feb6cc5c FE	359	if (is_hummingboard())
	360	puts("Board: MX6 Hummingboard\n");
	361	else
	362	puts("Board: MX6 Cubox-i\n");
	363
b8ce6fe2 FE	364	return 0;
	365	}
	366
205d5869 FE	367	static bool is_mx6q(void)
	368	{
	369	if (is_cpu_type(MXC_CPU_MX6Q) \|\| is_cpu_type(MXC_CPU_MX6D))
	370	return true;
	371	else
	372	return false;
	373	}
	374
	375	int board_late_init(void)
	376	{
	377	#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	378	if (is_hummingboard())
	379	setenv("board_name", "HUMMINGBOARD");
	380	else
	381	setenv("board_name", "CUBOXI");
	382
	383	if (is_mx6q())
	384	setenv("board_rev", "MX6Q");
	385	else
	386	setenv("board_rev", "MX6DL");
	387	#endif
	388
	389	return 0;
	390	}
	391
b8ce6fe2	392	#ifdef CONFIG_SPL_BUILD
cfdcc5f7	393	#include <asm/arch/mx6-ddr.h>
8cb6817e	394	static const struct mx6dq_iomux_ddr_regs mx6q_ddr_ioregs = {
b8ce6fe2 FE	395	.dram_sdclk_0 = 0x00020030,
	396	.dram_sdclk_1 = 0x00020030,
	397	.dram_cas = 0x00020030,
	398	.dram_ras = 0x00020030,
	399	.dram_reset = 0x00020030,
	400	.dram_sdcke0 = 0x00003000,
	401	.dram_sdcke1 = 0x00003000,
	402	.dram_sdba2 = 0x00000000,
	403	.dram_sdodt0 = 0x00003030,
	404	.dram_sdodt1 = 0x00003030,
	405	.dram_sdqs0 = 0x00000030,
	406	.dram_sdqs1 = 0x00000030,
	407	.dram_sdqs2 = 0x00000030,
	408	.dram_sdqs3 = 0x00000030,
	409	.dram_sdqs4 = 0x00000030,
	410	.dram_sdqs5 = 0x00000030,
	411	.dram_sdqs6 = 0x00000030,
	412	.dram_sdqs7 = 0x00000030,
	413	.dram_dqm0 = 0x00020030,
	414	.dram_dqm1 = 0x00020030,
	415	.dram_dqm2 = 0x00020030,
	416	.dram_dqm3 = 0x00020030,
	417	.dram_dqm4 = 0x00020030,
	418	.dram_dqm5 = 0x00020030,
	419	.dram_dqm6 = 0x00020030,
	420	.dram_dqm7 = 0x00020030,
	421	};
	422
8cb6817e FE	423	static const struct mx6sdl_iomux_ddr_regs mx6dl_ddr_ioregs = {
	424	.dram_sdclk_0 = 0x00000028,
	425	.dram_sdclk_1 = 0x00000028,
	426	.dram_cas = 0x00000028,
	427	.dram_ras = 0x00000028,
	428	.dram_reset = 0x000c0028,
	429	.dram_sdcke0 = 0x00003000,
	430	.dram_sdcke1 = 0x00003000,
	431	.dram_sdba2 = 0x00000000,
	432	.dram_sdodt0 = 0x00003030,
	433	.dram_sdodt1 = 0x00003030,
	434	.dram_sdqs0 = 0x00000028,
	435	.dram_sdqs1 = 0x00000028,
	436	.dram_sdqs2 = 0x00000028,
	437	.dram_sdqs3 = 0x00000028,
	438	.dram_sdqs4 = 0x00000028,
	439	.dram_sdqs5 = 0x00000028,
	440	.dram_sdqs6 = 0x00000028,
	441	.dram_sdqs7 = 0x00000028,
	442	.dram_dqm0 = 0x00000028,
	443	.dram_dqm1 = 0x00000028,
	444	.dram_dqm2 = 0x00000028,
	445	.dram_dqm3 = 0x00000028,
	446	.dram_dqm4 = 0x00000028,
	447	.dram_dqm5 = 0x00000028,
	448	.dram_dqm6 = 0x00000028,
	449	.dram_dqm7 = 0x00000028,
	450	};
	451
	452	static const struct mx6dq_iomux_grp_regs mx6q_grp_ioregs = {
b8ce6fe2 FE	453	.grp_ddr_type = 0x000C0000,
	454	.grp_ddrmode_ctl = 0x00020000,
	455	.grp_ddrpke = 0x00000000,
	456	.grp_addds = 0x00000030,
	457	.grp_ctlds = 0x00000030,
	458	.grp_ddrmode = 0x00020000,
	459	.grp_b0ds = 0x00000030,
	460	.grp_b1ds = 0x00000030,
	461	.grp_b2ds = 0x00000030,
	462	.grp_b3ds = 0x00000030,
	463	.grp_b4ds = 0x00000030,
	464	.grp_b5ds = 0x00000030,
	465	.grp_b6ds = 0x00000030,
	466	.grp_b7ds = 0x00000030,
	467	};
	468
8cb6817e FE	469	static const struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
	470	.grp_ddr_type = 0x000c0000,
	471	.grp_ddrmode_ctl = 0x00020000,
	472	.grp_ddrpke = 0x00000000,
	473	.grp_addds = 0x00000028,
	474	.grp_ctlds = 0x00000028,
	475	.grp_ddrmode = 0x00020000,
	476	.grp_b0ds = 0x00000028,
	477	.grp_b1ds = 0x00000028,
	478	.grp_b2ds = 0x00000028,
	479	.grp_b3ds = 0x00000028,
	480	.grp_b4ds = 0x00000028,
	481	.grp_b5ds = 0x00000028,
	482	.grp_b6ds = 0x00000028,
	483	.grp_b7ds = 0x00000028,
	484	};
	485
	486	/* microSOM with Dual processor and 1GB memory */
	487	static const struct mx6_mmdc_calibration mx6q_1g_mmcd_calib = {
b8ce6fe2 FE	488	.p0_mpwldectrl0 = 0x00000000,
	489	.p0_mpwldectrl1 = 0x00000000,
	490	.p1_mpwldectrl0 = 0x00000000,
	491	.p1_mpwldectrl1 = 0x00000000,
	492	.p0_mpdgctrl0 = 0x0314031c,
	493	.p0_mpdgctrl1 = 0x023e0304,
	494	.p1_mpdgctrl0 = 0x03240330,
	495	.p1_mpdgctrl1 = 0x03180260,
	496	.p0_mprddlctl = 0x3630323c,
	497	.p1_mprddlctl = 0x3436283a,
	498	.p0_mpwrdlctl = 0x36344038,
	499	.p1_mpwrdlctl = 0x422a423c,
	500	};
	501
8cb6817e FE	502	/* microSOM with Quad processor and 2GB memory */
	503	static const struct mx6_mmdc_calibration mx6q_2g_mmcd_calib = {
	504	.p0_mpwldectrl0 = 0x00000000,
	505	.p0_mpwldectrl1 = 0x00000000,
	506	.p1_mpwldectrl0 = 0x00000000,
	507	.p1_mpwldectrl1 = 0x00000000,
	508	.p0_mpdgctrl0 = 0x0314031c,
	509	.p0_mpdgctrl1 = 0x023e0304,
	510	.p1_mpdgctrl0 = 0x03240330,
	511	.p1_mpdgctrl1 = 0x03180260,
	512	.p0_mprddlctl = 0x3630323c,
	513	.p1_mprddlctl = 0x3436283a,
	514	.p0_mpwrdlctl = 0x36344038,
	515	.p1_mpwrdlctl = 0x422a423c,
	516	};
	517
	518	/* microSOM with Solo processor and 512MB memory */
	519	static const struct mx6_mmdc_calibration mx6dl_512m_mmcd_calib = {
	520	.p0_mpwldectrl0 = 0x0045004D,
	521	.p0_mpwldectrl1 = 0x003A0047,
	522	.p0_mpdgctrl0 = 0x023C0224,
	523	.p0_mpdgctrl1 = 0x02000220,
	524	.p0_mprddlctl = 0x44444846,
	525	.p0_mpwrdlctl = 0x32343032,
	526	};
	527
	528	/* microSOM with Dual lite processor and 1GB memory */
	529	static const struct mx6_mmdc_calibration mx6dl_1g_mmcd_calib = {
	530	.p0_mpwldectrl0 = 0x0045004D,
	531	.p0_mpwldectrl1 = 0x003A0047,
	532	.p1_mpwldectrl0 = 0x001F001F,
	533	.p1_mpwldectrl1 = 0x00210035,
	534	.p0_mpdgctrl0 = 0x023C0224,
	535	.p0_mpdgctrl1 = 0x02000220,
	536	.p1_mpdgctrl0 = 0x02200220,
	537	.p1_mpdgctrl1 = 0x02000220,
	538	.p0_mprddlctl = 0x44444846,
	539	.p1_mprddlctl = 0x4042463C,
	540	.p0_mpwrdlctl = 0x32343032,
	541	.p1_mpwrdlctl = 0x36363430,
	542	};
	543
	544	static struct mx6_ddr3_cfg mem_ddr_2g = {
b8ce6fe2 FE	545	.mem_speed = 1600,
	546	.density = 2,
	547	.width = 16,
	548	.banks = 8,
	549	.rowaddr = 14,
	550	.coladdr = 10,
	551	.pagesz = 2,
	552	.trcd = 1375,
	553	.trcmin = 4875,
	554	.trasmin = 3500,
	555	.SRT = 1,
	556	};
	557
8cb6817e FE	558	static struct mx6_ddr3_cfg mem_ddr_4g = {
	559	.mem_speed = 1600,
	560	.density = 4,
	561	.width = 16,
	562	.banks = 8,
	563	.rowaddr = 15,
	564	.coladdr = 10,
	565	.pagesz = 2,
	566	.trcd = 1375,
	567	.trcmin = 4875,
	568	.trasmin = 3500,
	569	};
	570
b8ce6fe2 FE	571	static void ccgr_init(void)
	572	{
	573	struct mxc_ccm_reg ccm = (struct mxc_ccm_reg )CCM_BASE_ADDR;
	574
	575	writel(0x00C03F3F, &ccm->CCGR0);
	576	writel(0x0030FC03, &ccm->CCGR1);
	577	writel(0x0FFFC000, &ccm->CCGR2);
	578	writel(0x3FF00000, &ccm->CCGR3);
	579	writel(0x00FFF300, &ccm->CCGR4);
	580	writel(0x0F0000C3, &ccm->CCGR5);
	581	writel(0x000003FF, &ccm->CCGR6);
	582	}
	583
	584	static void gpr_init(void)
	585	{
	586	struct iomuxc iomux = (struct iomuxc )IOMUXC_BASE_ADDR;
	587
	588	/* enable AXI cache for VDOA/VPU/IPU */
	589	writel(0xF00000CF, &iomux->gpr[4]);
	590	/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
	591	writel(0x007F007F, &iomux->gpr[6]);
	592	writel(0x007F007F, &iomux->gpr[7]);
	593	}
	594
	595	/*
	596	* This section requires the differentiation between Solidrun mx6 boards, but
	597	* for now, it will configure only for the mx6dual hummingboard version.
	598	*/
8cb6817e	599	static void spl_dram_init(int width)
b8ce6fe2 FE	600	{
	601	struct mx6_ddr_sysinfo sysinfo = {
	602	/* width of data bus: 0=16, 1=32, 2=64 */
8cb6817e	603	.dsize = width / 32,
b8ce6fe2 FE	604	/* config for full 4GB range so that get_mem_size() works */
	605	.cs_density = 32, /* 32Gb per CS */
	606	.ncs = 1, /* single chip select */
	607	.cs1_mirror = 0,
	608	.rtt_wr = 1 /DDR3_RTT_60_OHM/, /* RTT_Wr = RZQ/4 */
	609	.rtt_nom = 1 /DDR3_RTT_60_OHM/, /* RTT_Nom = RZQ/4 */
	610	.walat = 1, /* Write additional latency */
	611	.ralat = 5, /* Read additional latency */
	612	.mif3_mode = 3, /* Command prediction working mode */
	613	.bi_on = 1, /* Bank interleaving enabled */
	614	.sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */
	615	.rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */
	616	};
	617
8cb6817e FE	618	if (is_cpu_type(MXC_CPU_MX6D) \|\| is_cpu_type(MXC_CPU_MX6Q))
	619	mx6dq_dram_iocfg(width, &mx6q_ddr_ioregs, &mx6q_grp_ioregs);
	620	else
	621	mx6sdl_dram_iocfg(width, &mx6dl_ddr_ioregs, &mx6sdl_grp_ioregs);
	622
	623	if (is_cpu_type(MXC_CPU_MX6D))
	624	mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
	625	else if (is_cpu_type(MXC_CPU_MX6Q))
	626	mx6_dram_cfg(&sysinfo, &mx6q_2g_mmcd_calib, &mem_ddr_4g);
	627	else if (is_cpu_type(MXC_CPU_MX6DL))
	628	mx6_dram_cfg(&sysinfo, &mx6q_1g_mmcd_calib, &mem_ddr_2g);
	629	else if (is_cpu_type(MXC_CPU_MX6SOLO))
	630	mx6_dram_cfg(&sysinfo, &mx6dl_512m_mmcd_calib, &mem_ddr_2g);
b8ce6fe2 FE	631	}
	632
	633	void board_init_f(ulong dummy)
	634	{
	635	/* setup AIPS and disable watchdog */
	636	arch_cpu_init();
	637
	638	ccgr_init();
	639	gpr_init();
	640
	641	/* iomux and setup of i2c */
	642	board_early_init_f();
	643
	644	/* setup GP timer */
	645	timer_init();
	646
	647	/* UART clocks enabled and gd valid - init serial console */
	648	preloader_console_init();
	649
	650	/* DDR initialization */
8cb6817e FE	651	if (is_cpu_type(MXC_CPU_MX6SOLO))
	652	spl_dram_init(32);
	653	else
	654	spl_dram_init(64);
b8ce6fe2 FE	655
	656	/* Clear the BSS. */
	657	memset(__bss_start, 0, __bss_end - __bss_start);
	658
	659	/* load/boot image from boot device */
	660	board_init_r(NULL, 0);
	661	}
	662	#endif