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u-boot/board/toradex/colibri_imx6/colibri_imx6.c
Shiji Yang 506df9dc58 treewide: rework linker symbol declarations in sections header 
1. Convert all linker symbols to char[] type so that we can get the
   corresponding address by calling array name 'var' or its address
   '&var'. In this way, we can avoid some potential issues[1].
2. Remove unused symbol '_TEXT_BASE'. It has been abandoned and has
   not been referenced by any source code.
3. Move '__data_end' to the arch x86's own sections header as it's
   only used by x86 arch.
4. Remove some duplicate declared linker symbols. Now we use the
   standard header file to declare them.

[1] This patch fixes the boot failure on MIPS target. Error log:
SPL: Image overlaps SPL

Fixes: 1b8a1be1a1 ("spl: spl_legacy: Fix spl_end address")
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2023-08-09 09:21:42 -04:00

1132 lines
31 KiB
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
* Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
* Copyright (C) 2014-2019, Toradex AG
* copied from nitrogen6x
*/
#include <common.h>
#include <cpu_func.h>
#include <dm.h>
#include <env.h>
#include <init.h>
#include <net.h>
#include <asm/global_data.h>
#include <linux/bitops.h>
#include <linux/delay.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-ddr.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/mxc_hdmi.h>
#include <asm/arch/sys_proto.h>
#include <asm/bootm.h>
#include <asm/gpio.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/sata.h>
#include <asm/mach-imx/video.h>
#include <asm/sections.h>
#include <cpu.h>
#include <dm/platform_data/serial_mxc.h>
#include <fsl_esdhc_imx.h>
#include <imx_thermal.h>
#include <miiphy.h>
#include <netdev.h>
#include <cpu.h>
#include "../common/tdx-cfg-block.h"
#ifdef CONFIG_TDX_CMD_IMX_MFGR
#include "pf0100.h"
#endif
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_40ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define USDHC_EMMC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
PAD_CTL_SRE_FAST | PAD_CTL_HYS)
#define WEAK_PULLUP (PAD_CTL_PUS_100K_UP | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_SRE_SLOW)
#define NO_PULLUP ( \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
PAD_CTL_SRE_SLOW)
#define WEAK_PULLDOWN (PAD_CTL_PUS_100K_DOWN | \
PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_HYS | PAD_CTL_SRE_SLOW)
#define OUTPUT_RGB (PAD_CTL_SPEED_MED|PAD_CTL_DSE_60ohm|PAD_CTL_SRE_FAST)
int dram_init(void)
{
/* use the DDR controllers configured size */
gd->ram_size = get_ram_size((void *)CFG_SYS_SDRAM_BASE,
(ulong)imx_ddr_size());
return 0;
}
/* Colibri UARTA */
iomux_v3_cfg_t const uart1_pads[] = {
MX6_PAD_CSI0_DAT10__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
MX6_PAD_CSI0_DAT11__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};
#if defined(CONFIG_FSL_ESDHC_IMX) && defined(CONFIG_SPL_BUILD)
/* Colibri MMC */
iomux_v3_cfg_t const usdhc1_pads[] = {
MX6_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
# define GPIO_MMC_CD IMX_GPIO_NR(2, 5)
};
/* eMMC */
iomux_v3_cfg_t const usdhc3_pads[] = {
MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_EMMC_PAD_CTRL),
MX6_PAD_SD3_RST__SD3_RESET | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
#endif /* CONFIG_FSL_ESDHC_IMX & CONFIG_SPL_BUILD */
/* mux auxiliary pins to GPIO, so they can be used from the U-Boot cmdline */
iomux_v3_cfg_t const gpio_pads[] = {
/* ADDRESS[17:18] [25] used as GPIO */
MX6_PAD_KEY_ROW2__GPIO4_IO11 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_KEY_COL2__GPIO4_IO10 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_D1__GPIO2_IO01 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* ADDRESS[19:24] used as GPIO */
MX6_PAD_DISP0_DAT23__GPIO5_IO17 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_DISP0_DAT22__GPIO5_IO16 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_DISP0_DAT21__GPIO5_IO15 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_DISP0_DAT20__GPIO5_IO14 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_DISP0_DAT19__GPIO5_IO13 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_DISP0_DAT18__GPIO5_IO12 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* DATA[16:29] [31] used as GPIO */
MX6_PAD_EIM_LBA__GPIO2_IO27 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_BCLK__GPIO6_IO31 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_CS3__GPIO6_IO16 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_CS1__GPIO6_IO14 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_RB0__GPIO6_IO10 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_ALE__GPIO6_IO08 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_WP_B__GPIO6_IO09 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_CS0__GPIO6_IO11 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_CLE__GPIO6_IO07 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_GPIO_19__GPIO4_IO05 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_CSI0_MCLK__GPIO5_IO19 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_CSI0_PIXCLK__GPIO5_IO18 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_GPIO_5__GPIO1_IO05 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* DQM[0:3] used as GPIO */
MX6_PAD_EIM_EB0__GPIO2_IO28 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_EB1__GPIO2_IO29 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_SD2_DAT2__GPIO1_IO13 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_D0__GPIO2_IO00 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* RDY used as GPIO */
MX6_PAD_EIM_WAIT__GPIO5_IO00 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* ADDRESS[16] DATA[30] used as GPIO */
MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(WEAK_PULLDOWN) |
MUX_MODE_SION,
MX6_PAD_KEY_COL4__GPIO4_IO14 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* CSI pins used as GPIO */
MX6_PAD_EIM_A24__GPIO5_IO04 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_SD2_CMD__GPIO1_IO11 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_CS2__GPIO6_IO15 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_D18__GPIO3_IO18 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_A19__GPIO2_IO19 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(WEAK_PULLDOWN) |
MUX_MODE_SION,
MX6_PAD_EIM_A23__GPIO6_IO06 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_A20__GPIO2_IO18 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_A17__GPIO2_IO21 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_A18__GPIO2_IO20 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_EB3__GPIO2_IO31 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_D17__GPIO3_IO17 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_SD2_DAT0__GPIO1_IO15 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* GPIO */
MX6_PAD_EIM_D26__GPIO3_IO26 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_EIM_D27__GPIO3_IO27 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_D6__GPIO2_IO06 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_D3__GPIO2_IO03 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_ENET_REF_CLK__GPIO1_IO23 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_DI0_PIN4__GPIO4_IO20 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_SD4_DAT3__GPIO2_IO11 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_SD4_DAT0__GPIO2_IO08 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_GPIO_7__GPIO1_IO07 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
MX6_PAD_GPIO_8__GPIO1_IO08 | MUX_PAD_CTRL(WEAK_PULLUP) |
MUX_MODE_SION,
/* USBH_OC */
MX6_PAD_EIM_D30__GPIO3_IO30 | MUX_PAD_CTRL(WEAK_PULLUP),
/* USBC_ID */
MX6_PAD_NANDF_D2__GPIO2_IO02 | MUX_PAD_CTRL(WEAK_PULLUP),
/* USBC_DET */
MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(WEAK_PULLUP),
};
static void setup_iomux_gpio(void)
{
imx_iomux_v3_setup_multiple_pads(gpio_pads, ARRAY_SIZE(gpio_pads));
}
iomux_v3_cfg_t const usb_pads[] = {
/* USBH_PEN */
MX6_PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION,
# define GPIO_USBH_EN IMX_GPIO_NR(3, 31)
};
/*
* UARTs are used in DTE mode, switch the mode on all UARTs before
* any pinmuxing connects a (DCE) output to a transceiver output.
*/
#define UCR3 0x88 /* FIFO Control Register */
#define UCR3_RI BIT(8) /* RIDELT DTE mode */
#define UCR3_DCD BIT(9) /* DCDDELT DTE mode */
#define UFCR 0x90 /* FIFO Control Register */
#define UFCR_DCEDTE BIT(6) /* DCE=0 */
static void setup_dtemode_uart(void)
{
setbits_le32((u32 *)(UART1_BASE + UFCR), UFCR_DCEDTE);
setbits_le32((u32 *)(UART2_BASE + UFCR), UFCR_DCEDTE);
setbits_le32((u32 *)(UART3_BASE + UFCR), UFCR_DCEDTE);
clrbits_le32((u32 *)(UART1_BASE + UCR3), UCR3_DCD | UCR3_RI);
clrbits_le32((u32 *)(UART2_BASE + UCR3), UCR3_DCD | UCR3_RI);
clrbits_le32((u32 *)(UART3_BASE + UCR3), UCR3_DCD | UCR3_RI);
}
static void setup_iomux_uart(void)
{
setup_dtemode_uart();
imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}
#ifdef CONFIG_USB_EHCI_MX6
int board_ehci_hcd_init(int port)
{
imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
return 0;
}
#endif
#if defined(CONFIG_FSL_ESDHC_IMX) && defined(CONFIG_SPL_BUILD)
/* use the following sequence: eMMC, MMC */
struct fsl_esdhc_cfg usdhc_cfg[CFG_SYS_FSL_USDHC_NUM] = {
{USDHC3_BASE_ADDR},
{USDHC1_BASE_ADDR},
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = true; /* default: assume inserted */
switch (cfg->esdhc_base) {
case USDHC1_BASE_ADDR:
gpio_request(GPIO_MMC_CD, "MMC_CD");
gpio_direction_input(GPIO_MMC_CD);
ret = !gpio_get_value(GPIO_MMC_CD);
break;
}
return ret;
}
int board_mmc_init(struct bd_info *bis)
{
struct src *psrc = (struct src *)SRC_BASE_ADDR;
unsigned reg = readl(&psrc->sbmr1) >> 11;
/*
* Upon reading BOOT_CFG register the following map is done:
* Bit 11 and 12 of BOOT_CFG register can determine the current
* mmc port
* 0x1 SD1
* 0x2 SD2
* 0x3 SD4
*/
switch (reg & 0x3) {
case 0x0:
imx_iomux_v3_setup_multiple_pads(
usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
break;
case 0x2:
imx_iomux_v3_setup_multiple_pads(
usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
break;
default:
puts("MMC boot device not available");
}
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
}
#endif /* CONFIG_FSL_ESDHC_IMX & CONFIG_SPL_BUILD */
int board_phy_config(struct phy_device *phydev)
{
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
int setup_fec(void)
{
int ret;
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
/* provide the PHY clock from the i.MX 6 */
ret = enable_fec_anatop_clock(0, ENET_50MHZ);
if (ret)
return ret;
setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
return 0;
}
static iomux_v3_cfg_t const pwr_intb_pads[] = {
/*
* the bootrom sets the iomux to vselect, potentially connecting
* two outputs. Set this back to GPIO
*/
MX6_PAD_GPIO_18__GPIO7_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL)
};
#if defined(CONFIG_VIDEO_IPUV3)
static iomux_v3_cfg_t const backlight_pads[] = {
/* Backlight On */
MX6_PAD_EIM_D26__GPIO3_IO26 | MUX_PAD_CTRL(NO_PAD_CTRL) | MUX_MODE_SION,
#define RGB_BACKLIGHT_GP IMX_GPIO_NR(3, 26)
/* Backlight PWM, used as GPIO in U-Boot */
MX6_PAD_EIM_A22__GPIO2_IO16 | MUX_PAD_CTRL(NO_PULLUP),
MX6_PAD_SD4_DAT1__GPIO2_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL) |
MUX_MODE_SION,
#define RGB_BACKLIGHTPWM_GP IMX_GPIO_NR(2, 9)
};
static iomux_v3_cfg_t const rgb_pads[] = {
MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16 | MUX_PAD_CTRL(OUTPUT_RGB),
MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17 | MUX_PAD_CTRL(OUTPUT_RGB),
};
static void do_enable_hdmi(struct display_info_t const *dev)
{
imx_enable_hdmi_phy();
}
static void enable_rgb(struct display_info_t const *dev)
{
imx_iomux_v3_setup_multiple_pads(
rgb_pads,
ARRAY_SIZE(rgb_pads));
gpio_direction_output(RGB_BACKLIGHT_GP, 1);
gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0);
}
static int detect_default(struct display_info_t const *dev)
{
(void) dev;
return 1;
}
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",
.refresh = 60,
.xres = 1024,
.yres = 768,
.pixclock = 15385,
.left_margin = 220,
.right_margin = 40,
.upper_margin = 21,
.lower_margin = 7,
.hsync_len = 60,
.vsync_len = 10,
.sync = FB_SYNC_EXT,
.vmode = FB_VMODE_NONINTERLACED
} }, {
.bus = -1,
.addr = 0,
.pixfmt = IPU_PIX_FMT_RGB666,
.detect = detect_default,
.enable = enable_rgb,
.mode = {
.name = "vga-rgb",
.refresh = 60,
.xres = 640,
.yres = 480,
.pixclock = 33000,
.left_margin = 48,
.right_margin = 16,
.upper_margin = 31,
.lower_margin = 11,
.hsync_len = 96,
.vsync_len = 2,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED
} }, {
.bus = -1,
.addr = 0,
.pixfmt = IPU_PIX_FMT_RGB666,
.enable = enable_rgb,
.mode = {
.name = "wvga-rgb",
.refresh = 60,
.xres = 800,
.yres = 480,
.pixclock = 25000,
.left_margin = 40,
.right_margin = 88,
.upper_margin = 33,
.lower_margin = 10,
.hsync_len = 128,
.vsync_len = 2,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED
} } };
size_t display_count = ARRAY_SIZE(displays);
static void setup_display(void)
{
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
int reg;
enable_ipu_clock();
imx_setup_hdmi();
/* Turn on LDB0,IPU,IPU DI0 clocks */
reg = __raw_readl(&mxc_ccm->CCGR3);
reg |= MXC_CCM_CCGR3_LDB_DI0_MASK;
writel(reg, &mxc_ccm->CCGR3);
/* set LDB0, LDB1 clk select to 011/011 */
reg = readl(&mxc_ccm->cs2cdr);
reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
|MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
|(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
writel(reg, &mxc_ccm->cs2cdr);
reg = readl(&mxc_ccm->cscmr2);
reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
writel(reg, &mxc_ccm->cscmr2);
reg = readl(&mxc_ccm->chsccdr);
reg |= (CHSCCDR_CLK_SEL_LDB_DI0
<<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
writel(reg, &mxc_ccm->chsccdr);
reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
|IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
|IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
|IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
|IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
|IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
|IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
|IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
|IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
writel(reg, &iomux->gpr[2]);
reg = readl(&iomux->gpr[3]);
reg = (reg & ~(IOMUXC_GPR3_LVDS0_MUX_CTL_MASK
|IOMUXC_GPR3_HDMI_MUX_CTL_MASK))
| (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
<<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
writel(reg, &iomux->gpr[3]);
/* backlight unconditionally on for now */
imx_iomux_v3_setup_multiple_pads(backlight_pads,
ARRAY_SIZE(backlight_pads));
/* use 0 for EDT 7", use 1 for LG fullHD panel */
gpio_request(RGB_BACKLIGHTPWM_GP, "PWM<A>");
gpio_request(RGB_BACKLIGHT_GP, "BL_ON");
gpio_direction_output(RGB_BACKLIGHTPWM_GP, 0);
gpio_direction_output(RGB_BACKLIGHT_GP, 1);
}
/*
* Backlight off before OS handover
*/
void board_preboot_os(void)
{
gpio_direction_output(RGB_BACKLIGHTPWM_GP, 1);
gpio_direction_output(RGB_BACKLIGHT_GP, 0);
}
#endif /* defined(CONFIG_VIDEO_IPUV3) */
int board_early_init_f(void)
{
imx_iomux_v3_setup_multiple_pads(pwr_intb_pads,
ARRAY_SIZE(pwr_intb_pads));
setup_iomux_uart();
return 0;
}
/*
* Do not overwrite the console
* Use always serial for U-Boot console
*/
int overwrite_console(void)
{
return 1;
}
int board_init(void)
{
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
#if defined(CONFIG_FEC_MXC)
setup_fec();
#endif
#if defined(CONFIG_VIDEO_IPUV3)
setup_display();
#endif
#ifdef CONFIG_TDX_CMD_IMX_MFGR
(void) pmic_init();
#endif
#ifdef CONFIG_SATA
setup_sata();
#endif
setup_iomux_gpio();
return 0;
}
#ifdef CONFIG_BOARD_LATE_INIT
int board_late_init(void)
{
#if defined(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)
char env_str[256];
u32 rev;
rev = get_board_revision();
snprintf(env_str, ARRAY_SIZE(env_str), "%.4x", rev);
env_set("board_rev", env_str);
#endif
#ifdef CONFIG_CMD_USB_SDP
if (is_boot_from_usb()) {
printf("Serial Downloader recovery mode, using sdp command\n");
env_set("bootdelay", "0");
env_set("bootcmd", "sdp 0");
}
#endif /* CONFIG_CMD_USB_SDP */
return 0;
}
#endif /* CONFIG_BOARD_LATE_INIT */
int checkboard(void)
{
char it[] = " IT";
int minc, maxc;
switch (get_cpu_temp_grade(&minc, &maxc)) {
case TEMP_AUTOMOTIVE:
case TEMP_INDUSTRIAL:
break;
case TEMP_EXTCOMMERCIAL:
default:
it[0] = 0;
};
printf("Model: Toradex Colibri iMX6 %s %sMB%s\n",
is_cpu_type(MXC_CPU_MX6DL) ? "DualLite" : "Solo",
(gd->ram_size == 0x20000000) ? "512" : "256", it);
return 0;
}
#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
int ft_board_setup(void *blob, struct bd_info *bd)
{
u32 cma_size;
ft_common_board_setup(blob, bd);
cma_size = env_get_ulong("cma-size", 10, 320 * 1024 * 1024);
cma_size = min((u32)(gd->ram_size >> 1), cma_size);
fdt_setprop_u32(blob,
fdt_path_offset(blob, "/reserved-memory/linux,cma"),
"size",
cma_size);
return 0;
}
#endif
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
{"mmc", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
{NULL, 0},
};
#endif
int misc_init_r(void)
{
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
return 0;
}
#ifdef CONFIG_LDO_BYPASS_CHECK
/* TODO, use external pmic, for now always ldo_enable */
void ldo_mode_set(int ldo_bypass)
{
return;
}
#endif
#ifdef CONFIG_SPL_BUILD
#include <spl.h>
#include <linux/libfdt.h>
#include "asm/arch/mx6dl-ddr.h"
#include "asm/arch/iomux.h"
#include "asm/arch/crm_regs.h"
static int mx6s_dcd_table[] = {
/* ddr-setup.cfg */
MX6_IOM_DRAM_SDQS0, 0x00000030,
MX6_IOM_DRAM_SDQS1, 0x00000030,
MX6_IOM_DRAM_SDQS2, 0x00000030,
MX6_IOM_DRAM_SDQS3, 0x00000030,
MX6_IOM_DRAM_SDQS4, 0x00000030,
MX6_IOM_DRAM_SDQS5, 0x00000030,
MX6_IOM_DRAM_SDQS6, 0x00000030,
MX6_IOM_DRAM_SDQS7, 0x00000030,
MX6_IOM_GRP_B0DS, 0x00000030,
MX6_IOM_GRP_B1DS, 0x00000030,
MX6_IOM_GRP_B2DS, 0x00000030,
MX6_IOM_GRP_B3DS, 0x00000030,
MX6_IOM_GRP_B4DS, 0x00000030,
MX6_IOM_GRP_B5DS, 0x00000030,
MX6_IOM_GRP_B6DS, 0x00000030,
MX6_IOM_GRP_B7DS, 0x00000030,
MX6_IOM_GRP_ADDDS, 0x00000030,
/* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
MX6_IOM_GRP_CTLDS, 0x00000030,
MX6_IOM_DRAM_DQM0, 0x00020030,
MX6_IOM_DRAM_DQM1, 0x00020030,
MX6_IOM_DRAM_DQM2, 0x00020030,
MX6_IOM_DRAM_DQM3, 0x00020030,
MX6_IOM_DRAM_DQM4, 0x00020030,
MX6_IOM_DRAM_DQM5, 0x00020030,
MX6_IOM_DRAM_DQM6, 0x00020030,
MX6_IOM_DRAM_DQM7, 0x00020030,
MX6_IOM_DRAM_CAS, 0x00020030,
MX6_IOM_DRAM_RAS, 0x00020030,
MX6_IOM_DRAM_SDCLK_0, 0x00020030,
MX6_IOM_DRAM_SDCLK_1, 0x00020030,
MX6_IOM_DRAM_RESET, 0x00020030,
MX6_IOM_DRAM_SDCKE0, 0x00003000,
MX6_IOM_DRAM_SDCKE1, 0x00003000,
MX6_IOM_DRAM_SDODT0, 0x00003030,
MX6_IOM_DRAM_SDODT1, 0x00003030,
/* (differential input) */
MX6_IOM_DDRMODE_CTL, 0x00020000,
/* (differential input) */
MX6_IOM_GRP_DDRMODE, 0x00020000,
/* disable ddr pullups */
MX6_IOM_GRP_DDRPKE, 0x00000000,
MX6_IOM_DRAM_SDBA2, 0x00000000,
/* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
MX6_IOM_GRP_DDR_TYPE, 0x000C0000,
/* Read data DQ Byte0-3 delay */
MX6_MMDC_P0_MPRDDQBY0DL, 0x33333333,
MX6_MMDC_P0_MPRDDQBY1DL, 0x33333333,
MX6_MMDC_P0_MPRDDQBY2DL, 0x33333333,
MX6_MMDC_P0_MPRDDQBY3DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY0DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY1DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY2DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY3DL, 0x33333333,
/*
* MDMISC mirroring interleaved (row/bank/col)
*/
MX6_MMDC_P0_MDMISC, 0x000b17c0,
/*
* MDSCR con_req
*/
MX6_MMDC_P0_MDSCR, 0x00008000,
/* 800mhz_2x64mx16.cfg */
MX6_MMDC_P0_MDPDC, 0x0002002D,
MX6_MMDC_P0_MDCFG0, 0x2C305503,
MX6_MMDC_P0_MDCFG1, 0xB66D8D63,
MX6_MMDC_P0_MDCFG2, 0x01FF00DB,
MX6_MMDC_P0_MDRWD, 0x000026D2,
MX6_MMDC_P0_MDOR, 0x00301023,
MX6_MMDC_P0_MDOTC, 0x00333030,
MX6_MMDC_P0_MDPDC, 0x0002556D,
/* CS0 End: 7MSB of ((0x10000000, + 512M) -1) >> 25 */
MX6_MMDC_P0_MDASP, 0x00000017,
/* DDR3 DATA BUS SIZE: 64BIT */
/* MX6_MMDC_P0_MDCTL, 0x821A0000, */
/* DDR3 DATA BUS SIZE: 32BIT */
MX6_MMDC_P0_MDCTL, 0x82190000,
/* Write commands to DDR */
/* Load Mode Registers */
/* TODO Use Auto Self-Refresh mode (Extended Temperature)*/
/* MX6_MMDC_P0_MDSCR, 0x04408032, */
MX6_MMDC_P0_MDSCR, 0x04008032,
MX6_MMDC_P0_MDSCR, 0x00008033,
MX6_MMDC_P0_MDSCR, 0x00048031,
MX6_MMDC_P0_MDSCR, 0x13208030,
/* ZQ calibration */
MX6_MMDC_P0_MDSCR, 0x04008040,
MX6_MMDC_P0_MPZQHWCTRL, 0xA1390003,
MX6_MMDC_P1_MPZQHWCTRL, 0xA1390003,
MX6_MMDC_P0_MDREF, 0x00005800,
MX6_MMDC_P0_MPODTCTRL, 0x00000000,
MX6_MMDC_P1_MPODTCTRL, 0x00000000,
MX6_MMDC_P0_MPDGCTRL0, 0x42360232,
MX6_MMDC_P0_MPDGCTRL1, 0x021F022A,
MX6_MMDC_P1_MPDGCTRL0, 0x421E0224,
MX6_MMDC_P1_MPDGCTRL1, 0x02110218,
MX6_MMDC_P0_MPRDDLCTL, 0x41434344,
MX6_MMDC_P1_MPRDDLCTL, 0x4345423E,
MX6_MMDC_P0_MPWRDLCTL, 0x39383339,
MX6_MMDC_P1_MPWRDLCTL, 0x3E363930,
MX6_MMDC_P0_MPWLDECTRL0, 0x00340039,
MX6_MMDC_P0_MPWLDECTRL1, 0x002C002D,
MX6_MMDC_P1_MPWLDECTRL0, 0x00120019,
MX6_MMDC_P1_MPWLDECTRL1, 0x0012002D,
MX6_MMDC_P0_MPMUR0, 0x00000800,
MX6_MMDC_P1_MPMUR0, 0x00000800,
MX6_MMDC_P0_MDSCR, 0x00000000,
MX6_MMDC_P0_MAPSR, 0x00011006,
};
static int mx6dl_dcd_table[] = {
/* ddr-setup.cfg */
MX6_IOM_DRAM_SDQS0, 0x00000030,
MX6_IOM_DRAM_SDQS1, 0x00000030,
MX6_IOM_DRAM_SDQS2, 0x00000030,
MX6_IOM_DRAM_SDQS3, 0x00000030,
MX6_IOM_DRAM_SDQS4, 0x00000030,
MX6_IOM_DRAM_SDQS5, 0x00000030,
MX6_IOM_DRAM_SDQS6, 0x00000030,
MX6_IOM_DRAM_SDQS7, 0x00000030,
MX6_IOM_GRP_B0DS, 0x00000030,
MX6_IOM_GRP_B1DS, 0x00000030,
MX6_IOM_GRP_B2DS, 0x00000030,
MX6_IOM_GRP_B3DS, 0x00000030,
MX6_IOM_GRP_B4DS, 0x00000030,
MX6_IOM_GRP_B5DS, 0x00000030,
MX6_IOM_GRP_B6DS, 0x00000030,
MX6_IOM_GRP_B7DS, 0x00000030,
MX6_IOM_GRP_ADDDS, 0x00000030,
/* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
MX6_IOM_GRP_CTLDS, 0x00000030,
MX6_IOM_DRAM_DQM0, 0x00020030,
MX6_IOM_DRAM_DQM1, 0x00020030,
MX6_IOM_DRAM_DQM2, 0x00020030,
MX6_IOM_DRAM_DQM3, 0x00020030,
MX6_IOM_DRAM_DQM4, 0x00020030,
MX6_IOM_DRAM_DQM5, 0x00020030,
MX6_IOM_DRAM_DQM6, 0x00020030,
MX6_IOM_DRAM_DQM7, 0x00020030,
MX6_IOM_DRAM_CAS, 0x00020030,
MX6_IOM_DRAM_RAS, 0x00020030,
MX6_IOM_DRAM_SDCLK_0, 0x00020030,
MX6_IOM_DRAM_SDCLK_1, 0x00020030,
MX6_IOM_DRAM_RESET, 0x00020030,
MX6_IOM_DRAM_SDCKE0, 0x00003000,
MX6_IOM_DRAM_SDCKE1, 0x00003000,
MX6_IOM_DRAM_SDODT0, 0x00003030,
MX6_IOM_DRAM_SDODT1, 0x00003030,
/* (differential input) */
MX6_IOM_DDRMODE_CTL, 0x00020000,
/* (differential input) */
MX6_IOM_GRP_DDRMODE, 0x00020000,
/* disable ddr pullups */
MX6_IOM_GRP_DDRPKE, 0x00000000,
MX6_IOM_DRAM_SDBA2, 0x00000000,
/* 40 Ohm drive strength for cs0/1,sdba2,cke0/1,sdwe */
MX6_IOM_GRP_DDR_TYPE, 0x000C0000,
/* Read data DQ Byte0-3 delay */
MX6_MMDC_P0_MPRDDQBY0DL, 0x33333333,
MX6_MMDC_P0_MPRDDQBY1DL, 0x33333333,
MX6_MMDC_P0_MPRDDQBY2DL, 0x33333333,
MX6_MMDC_P0_MPRDDQBY3DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY0DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY1DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY2DL, 0x33333333,
MX6_MMDC_P1_MPRDDQBY3DL, 0x33333333,
/*
* MDMISC mirroring interleaved (row/bank/col)
*/
MX6_MMDC_P0_MDMISC, 0x000b17c0,
/*
* MDSCR con_req
*/
MX6_MMDC_P0_MDSCR, 0x00008000,
/* 800mhz_2x64mx16.cfg */
MX6_MMDC_P0_MDPDC, 0x0002002D,
MX6_MMDC_P0_MDCFG0, 0x2C305503,
MX6_MMDC_P0_MDCFG1, 0xB66D8D63,
MX6_MMDC_P0_MDCFG2, 0x01FF00DB,
MX6_MMDC_P0_MDRWD, 0x000026D2,
MX6_MMDC_P0_MDOR, 0x00301023,
MX6_MMDC_P0_MDOTC, 0x00333030,
MX6_MMDC_P0_MDPDC, 0x0002556D,
/* CS0 End: 7MSB of ((0x10000000, + 512M) -1) >> 25 */
MX6_MMDC_P0_MDASP, 0x00000017,
/* DDR3 DATA BUS SIZE: 64BIT */
MX6_MMDC_P0_MDCTL, 0x821A0000,
/* DDR3 DATA BUS SIZE: 32BIT */
/* MX6_MMDC_P0_MDCTL, 0x82190000, */
/* Write commands to DDR */
/* Load Mode Registers */
/* TODO Use Auto Self-Refresh mode (Extended Temperature)*/
/* MX6_MMDC_P0_MDSCR, 0x04408032, */
MX6_MMDC_P0_MDSCR, 0x04008032,
MX6_MMDC_P0_MDSCR, 0x00008033,
MX6_MMDC_P0_MDSCR, 0x00048031,
MX6_MMDC_P0_MDSCR, 0x13208030,
/* ZQ calibration */
MX6_MMDC_P0_MDSCR, 0x04008040,
MX6_MMDC_P0_MPZQHWCTRL, 0xA1390003,
MX6_MMDC_P1_MPZQHWCTRL, 0xA1390003,
MX6_MMDC_P0_MDREF, 0x00005800,
MX6_MMDC_P0_MPODTCTRL, 0x00000000,
MX6_MMDC_P1_MPODTCTRL, 0x00000000,
MX6_MMDC_P0_MPDGCTRL0, 0x42360232,
MX6_MMDC_P0_MPDGCTRL1, 0x021F022A,
MX6_MMDC_P1_MPDGCTRL0, 0x421E0224,
MX6_MMDC_P1_MPDGCTRL1, 0x02110218,
MX6_MMDC_P0_MPRDDLCTL, 0x41434344,
MX6_MMDC_P1_MPRDDLCTL, 0x4345423E,
MX6_MMDC_P0_MPWRDLCTL, 0x39383339,
MX6_MMDC_P1_MPWRDLCTL, 0x3E363930,
MX6_MMDC_P0_MPWLDECTRL0, 0x00340039,
MX6_MMDC_P0_MPWLDECTRL1, 0x002C002D,
MX6_MMDC_P1_MPWLDECTRL0, 0x00120019,
MX6_MMDC_P1_MPWLDECTRL1, 0x0012002D,
MX6_MMDC_P0_MPMUR0, 0x00000800,
MX6_MMDC_P1_MPMUR0, 0x00000800,
MX6_MMDC_P0_MDSCR, 0x00000000,
MX6_MMDC_P0_MAPSR, 0x00011006,
};
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(0x0FFFFFF3, &ccm->CCGR2);
writel(0x3FF0300F, &ccm->CCGR3);
writel(0x00FFF300, &ccm->CCGR4);
writel(0x0F0000F3, &ccm->CCGR5);
writel(0x000003FF, &ccm->CCGR6);
/*
* Setup CCM_CCOSR register as follows:
*
* clko2_en = 1 --> CKO2 enabled
* clko2_div = 000 --> divide by 1
* clko2_sel = 01110 --> osc_clk (24MHz)
*
* clk_out_sel = 1 --> Output CKO2 to CKO1
*
* This sets both CLKO2/CLKO1 output to 24MHz,
* CLKO1 configuration not relevant because of clk_out_sel
* (CLKO1 set to default)
*/
writel(0x010E0101, &ccm->ccosr);
}
static void ddr_init(int *table, int size)
{
int i;
for (i = 0; i < size / 2 ; i++)
writel(table[2 * i + 1], table[2 * i]);
}
/* Perform DDR DRAM calibration */
static void spl_dram_perform_cal(u8 dsize)
{
#ifdef CONFIG_MX6_DDRCAL
int err;
struct mx6_ddr_sysinfo ddr_sysinfo = {
.dsize = dsize,
};
err = mmdc_do_write_level_calibration(&ddr_sysinfo);
if (err)
printf("error %d from write level calibration\n", err);
err = mmdc_do_dqs_calibration(&ddr_sysinfo);
if (err)
printf("error %d from dqs calibration\n", err);
#endif
}
static void spl_dram_init(void)
{
int minc, maxc;
u8 dsize = 2;
switch (get_cpu_temp_grade(&minc, &maxc)) {
case TEMP_COMMERCIAL:
case TEMP_EXTCOMMERCIAL:
if (is_cpu_type(MXC_CPU_MX6DL)) {
puts("Commercial temperature grade DDR3 timings, 64bit bus width.\n");
ddr_init(mx6dl_dcd_table, ARRAY_SIZE(mx6dl_dcd_table));
} else {
puts("Commercial temperature grade DDR3 timings, 32bit bus width.\n");
dsize = 1;
ddr_init(mx6s_dcd_table, ARRAY_SIZE(mx6s_dcd_table));
}
break;
case TEMP_INDUSTRIAL:
case TEMP_AUTOMOTIVE:
default:
if (is_cpu_type(MXC_CPU_MX6DL)) {
puts("Industrial temperature grade DDR3 timings, 64bit bus width.\n");
ddr_init(mx6dl_dcd_table, ARRAY_SIZE(mx6dl_dcd_table));
} else {
puts("Industrial temperature grade DDR3 timings, 32bit bus width.\n");
dsize = 1;
ddr_init(mx6s_dcd_table, ARRAY_SIZE(mx6s_dcd_table));
}
break;
};
udelay(100);
spl_dram_perform_cal(dsize);
}
static iomux_v3_cfg_t const gpio_reset_pad[] = {
MX6_PAD_RGMII_RD1__GPIO6_IO27 | MUX_PAD_CTRL(NO_PAD_CTRL) |
MUX_MODE_SION
#define GPIO_NRESET IMX_GPIO_NR(6, 27)
};
#define IMX_RESET_CAUSE_POR 0x00011
static void nreset_out(void)
{
int reset_cause = get_imx_reset_cause();
if (reset_cause != IMX_RESET_CAUSE_POR) {
imx_iomux_v3_setup_multiple_pads(gpio_reset_pad,
ARRAY_SIZE(gpio_reset_pad));
gpio_direction_output(GPIO_NRESET, 1);
udelay(100);
gpio_direction_output(GPIO_NRESET, 0);
}
}
void board_init_f(ulong dummy)
{
/* setup AIPS and disable watchdog */
arch_cpu_init();
ccgr_init();
gpr_init();
/* iomux */
board_early_init_f();
/* setup GP timer */
timer_init();
/* UART clocks enabled and gd valid - init serial console */
preloader_console_init();
/* Make sure we use dte mode */
setup_dtemode_uart();
/* DDR initialization */
spl_dram_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
/* Assert nReset_Out */
nreset_out();
/* load/boot image from boot device */
board_init_r(NULL, 0);
}
#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
if (!strcmp(name, "imx6-colibri"))
return 0;
return -1;
}
#endif
void reset_cpu(void)
{
}
#endif /* CONFIG_SPL_BUILD */
static struct mxc_serial_plat mxc_serial_plat = {
.reg = (struct mxc_uart *)UART1_BASE,
.use_dte = true,
};
U_BOOT_DRVINFO(mxc_serial) = {
.name = "serial_mxc",
.plat = &mxc_serial_plat,
};
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