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imx: board: Add support for the K+P's kp_imx6q_tpc board

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This commit provides support for Kieback & Peter GmbH IMX6Q based
TPC board.

U-boot console output:

U-Boot SPL 2018.05-rc1-00005-g631e2d01fd (Apr 04 2018 - 21:16:24 +0200)
Trying to boot from MMC1

U-Boot 2018.05-rc1-00005-g631e2d01fd (Apr 04 2018 - 21:16:24 +0200)

CPU:   Freescale i.MX6Q rev1.5 996 MHz (running at 792 MHz)
CPU:   Extended Commercial temperature grade (-20C to 105C) at 37C
Reset cause: POR
Board: K+P KP_IMX6Q_TPC i.MX6Q
       Watchdog enabled
I2C:   ready
DRAM:  2 GiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
Net:   FEC [PRIME]
Autoboot in 3 seconds
This commit is contained in:
Lukasz Majewski 2018-04-05 09:04:38 +02:00 committed by Stefano Babic
parent 6c0e6b45f9
commit dd4671cb3f
8 changed files with 863 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/arm/mach-imx/mx6/Kconfig
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@ -387,6 +387,16 @@ config TARGET_TBS2910
config TARGET_TITANIUM
bool "titanium"
config TARGET_KP_IMX6Q_TPC
bool "K+P KP_IMX6Q_TPC i.MX6 Quad"
select MX6QDL
select BOARD_LATE_INIT
select BOARD_EARLY_INIT_F
select SUPPORT_SPL
select DM
select DM_THERMAL
imply CMD_SPL
config TARGET_TQMA6
bool "TQ Systems TQMa6 board"
select BOARD_LATE_INIT
@ -493,6 +503,7 @@ source "board/tbs/tbs2910/Kconfig"
source "board/tqc/tqma6/Kconfig"
source "board/toradex/apalis_imx6/Kconfig"
source "board/toradex/colibri_imx6/Kconfig"
source "board/k+p/kp_imx6q_tpc/Kconfig"
source "board/udoo/Kconfig"
source "board/udoo/neo/Kconfig"
source "board/wandboard/Kconfig"

12
board/k+p/kp_imx6q_tpc/Kconfig Normal file
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@ -0,0 +1,12 @@
if TARGET_KP_IMX6Q_TPC
config SYS_BOARD
default "kp_imx6q_tpc"
config SYS_VENDOR
default "k+p"
config SYS_CONFIG_NAME
default "kp_imx6q_tpc"
endif

6
board/k+p/kp_imx6q_tpc/MAINTAINERS Normal file
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@ -0,0 +1,6 @@
KP_IMX6Q_TPC BOARD
M: Lukasz Majewski <lukma@denx.de>
S: Maintained
F: board/k+p/kp_imx6q_tpc/
F: include/configs/kp_imx6q_tpc.h
F: configs/kp_imx6q_tpc_defconfig

11
board/k+p/kp_imx6q_tpc/Makefile Normal file
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@ -0,0 +1,11 @@
#
# Copyright (C) 2018 Lukasz Majewski <lukma@denx.de>
#
# SPDX-License-Identifier: GPL-2.0+
#
ifdef CONFIG_SPL_BUILD
obj-y := kp_imx6q_tpc_spl.o
else
obj-y := kp_imx6q_tpc.o
endif

302
board/k+p/kp_imx6q_tpc/kp_imx6q_tpc.c Normal file
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@ -0,0 +1,302 @@
/*
* K+P iMX6Q KP_IMX6Q_TPC board configuration
*
* Copyright (C) 2018 Lukasz Majewski <lukma@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <errno.h>
#include <fsl_esdhc.h>
#include <fuse.h>
#include <i2c.h>
#include <miiphy.h>
#include <mmc.h>
#include <net.h>
#include <netdev.h>
#include <usb.h>
#include <usb/ehci-ci.h>
DECLARE_GLOBAL_DATA_PTR;
#define ENET_PAD_CTRL \
(PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_HYS)
#define I2C_PAD_CTRL \
(PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
PAD_CTL_HYS | PAD_CTL_ODE | PAD_CTL_SRE_FAST)
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
static struct i2c_pads_info kp_imx6q_tpc_i2c_pad_info0 = {
.scl = {
.i2c_mode = MX6Q_PAD_CSI0_DAT9__I2C1_SCL | PC,
.gpio_mode = MX6Q_PAD_CSI0_DAT9__GPIO5_IO27 | PC,
.gp = IMX_GPIO_NR(5, 27)
},
.sda = {
.i2c_mode = MX6Q_PAD_CSI0_DAT8__I2C1_SDA | PC,
.gpio_mode = MX6Q_PAD_CSI0_DAT8__GPIO5_IO26 | PC,
.gp = IMX_GPIO_NR(5, 26)
}
};
static struct i2c_pads_info kp_imx6q_tpc_i2c_pad_info1 = {
.scl = {
.i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | PC,
.gpio_mode = MX6Q_PAD_KEY_COL3__GPIO4_IO12 | PC,
.gp = IMX_GPIO_NR(4, 12)
},
.sda = {
.i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | PC,
.gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO4_IO13 | PC,
.gp = IMX_GPIO_NR(4, 13)
}
};
int dram_init(void)
{
gd->ram_size = imx_ddr_size();
return 0;
}
/*
* Do not overwrite the console
* Use always serial for U-Boot console
*/
int overwrite_console(void)
{
return 1;
}
#ifdef CONFIG_FEC_MXC
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)),
IOMUX_PADS(PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_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)),
IOMUX_PADS(PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL)),
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)),
IOMUX_PADS(PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL)),
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)),
/* AR8031 PHY Reset */
IOMUX_PADS(PAD_ENET_CRS_DV__GPIO1_IO25 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static void eth_phy_reset(void)
{
/* Reset AR8031 PHY */
gpio_direction_output(IMX_GPIO_NR(1, 25), 0);
mdelay(10);
gpio_set_value(IMX_GPIO_NR(1, 25), 1);
udelay(100);
}
static int setup_fec_clock(void)
{
struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
/* set gpr1[21] to select anatop clock */
clrsetbits_le32(&iomuxc_regs->gpr[1], 0x1 << 21, 0x1 << 21);
return enable_fec_anatop_clock(0, ENET_50MHZ);
}
int board_eth_init(bd_t *bis)
{
SETUP_IOMUX_PADS(enet_pads);
setup_fec_clock();
eth_phy_reset();
return cpu_eth_init(bis);
}
static int ar8031_phy_fixup(struct phy_device *phydev)
{
unsigned short val;
/* To enable AR8031 output a 125MHz clk from CLK_25M */
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);
val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
val &= 0xffe3;
val |= 0x18;
phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);
/* introduce tx clock delay */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
val |= 0x0100;
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);
return 0;
}
int board_phy_config(struct phy_device *phydev)
{
ar8031_phy_fixup(phydev);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
#endif
#ifdef CONFIG_FSL_ESDHC
#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
static struct fsl_esdhc_cfg usdhc_cfg[] = {
{ USDHC2_BASE_ADDR },
{ USDHC4_BASE_ADDR },
};
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
switch (cfg->esdhc_base) {
case USDHC2_BASE_ADDR:
return !gpio_get_value(USDHC2_CD_GPIO);
case USDHC4_BASE_ADDR:
return 1; /* eMMC/uSDHC4 is always present */
}
return 0;
}
int board_mmc_init(bd_t *bis)
{
int i, ret;
/*
* According to the board_mmc_init() the following map is done:
* (U-Boot device node) (Physical Port)
* mmc0 micro SD
* mmc2 eMMC
*/
gpio_direction_input(USDHC2_CD_GPIO);
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
if (ret)
return ret;
}
return 0;
}
#endif
#ifdef CONFIG_USB_EHCI_MX6
static void setup_usb(void)
{
/*
* Set daisy chain for otg_pin_id on MX6Q.
* For MX6DL, this bit is reserved.
*/
imx_iomux_set_gpr_register(1, 13, 1, 0);
}
int board_usb_phy_mode(int port)
{
if (port == 1)
return USB_INIT_HOST;
else
return USB_INIT_DEVICE;
}
int board_ehci_power(int port, int on)
{
switch (port) {
case 0:
break;
case 1:
gpio_direction_output(IMX_GPIO_NR(3, 31), !!on);
break;
default:
printf("MXC USB port %d not yet supported\n", port);
return -EINVAL;
}
return 0;
}
#endif
int board_early_init_f(void)
{
#ifdef CONFIG_USB_EHCI_MX6
setup_usb();
#endif
return 0;
}
int board_init(void)
{
struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
/* Enable eim_slow clocks */
setbits_le32(&mxc_ccm->CCGR6, 0x1 << MXC_CCM_CCGR6_EMI_SLOW_OFFSET);
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &kp_imx6q_tpc_i2c_pad_info0);
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &kp_imx6q_tpc_i2c_pad_info1);
return 0;
}
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
{"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
/* 8 bit bus width */
{"emmc", MAKE_CFGVAL(0x60, 0x58, 0x00, 0x00)},
{NULL, 0},
};
#endif
int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
env_set("boardname", "kp-tpc");
env_set("boardsoc", "imx6q");
return 0;
}
int checkboard(void)
{
puts("Board: K+P KP_IMX6Q_TPC i.MX6Q\n");
return 0;
}

338
board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c Normal file
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@ -0,0 +1,338 @@
/*
* K+P iMX6Q KP_IMX6Q_TPC board configuration
*
* Copyright (C) 2018 Lukasz Majewski <lukma@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-ddr.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <asm/io.h>
#include <errno.h>
#include <fuse.h>
#include <fsl_esdhc.h>
#include <i2c.h>
#include <mmc.h>
#include <spl.h>
#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)
DECLARE_GLOBAL_DATA_PTR;
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);
}
/* onboard microSD */
static iomux_v3_cfg_t const usdhc2_pads[] = {
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)),
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_NANDF_CS3__GPIO6_IO16 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
/* eMMC */
static iomux_v3_cfg_t const usdhc4_pads[] = {
IOMUX_PADS(PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
IOMUX_PADS(PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
};
/* SD */
static void setup_iomux_sd(void)
{
SETUP_IOMUX_PADS(usdhc2_pads);
SETUP_IOMUX_PADS(usdhc4_pads);
}
/* UART */
static iomux_v3_cfg_t const uart1_pads[] = {
IOMUX_PADS(PAD_SD3_DAT7__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
IOMUX_PADS(PAD_SD3_DAT6__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
};
static void setup_iomux_uart(void)
{
SETUP_IOMUX_PADS(uart1_pads);
}
/* USB */
static iomux_v3_cfg_t const usb_pads[] = {
IOMUX_PADS(PAD_GPIO_1__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL)),
IOMUX_PADS(PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};
static void setup_iomux_usb(void)
{
SETUP_IOMUX_PADS(usb_pads);
}
/* DDR3 */
static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
.dram_sdclk_0 = 0x00000030,
.dram_sdclk_1 = 0x00000030,
.dram_cas = 0x00000030,
.dram_ras = 0x00000030,
.dram_reset = 0x00000030,
.dram_sdcke0 = 0x00003000,
.dram_sdcke1 = 0x00003000,
.dram_sdba2 = 0x00000000,
.dram_sdodt0 = 0x00000030,
.dram_sdodt1 = 0x00000030,
.dram_sdqs0 = 0x00000018,
.dram_sdqs1 = 0x00000018,
.dram_sdqs2 = 0x00000018,
.dram_sdqs3 = 0x00000018,
.dram_sdqs4 = 0x00000018,
.dram_sdqs5 = 0x00000018,
.dram_sdqs6 = 0x00000018,
.dram_sdqs7 = 0x00000018,
.dram_dqm0 = 0x00000018,
.dram_dqm1 = 0x00000018,
.dram_dqm2 = 0x00000018,
.dram_dqm3 = 0x00000018,
.dram_dqm4 = 0x00000018,
.dram_dqm5 = 0x00000018,
.dram_dqm6 = 0x00000018,
.dram_dqm7 = 0x00000018,
};
static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
.grp_ddr_type = 0x000c0000,
.grp_ddrmode_ctl = 0x00020000,
.grp_ddrpke = 0x00000000,
.grp_addds = 0x00000030,
.grp_ctlds = 0x00000030,
.grp_ddrmode = 0x00020000,
.grp_b0ds = 0x00000018,
.grp_b1ds = 0x00000018,
.grp_b2ds = 0x00000018,
.grp_b3ds = 0x00000018,
.grp_b4ds = 0x00000018,
.grp_b5ds = 0x00000018,
.grp_b6ds = 0x00000018,
.grp_b7ds = 0x00000018,
};
static const struct mx6_mmdc_calibration mx6_4x256mx16_mmdc_calib = {
.p0_mpwldectrl0 = 0x001F001F,
.p0_mpwldectrl1 = 0x001F001F,
.p1_mpwldectrl0 = 0x001F001F,
.p1_mpwldectrl1 = 0x001F001F,
.p0_mpdgctrl0 = 0x43270338,
.p0_mpdgctrl1 = 0x03200314,
.p1_mpdgctrl0 = 0x431A032F,
.p1_mpdgctrl1 = 0x03200263,
.p0_mprddlctl = 0x4B434748,
.p1_mprddlctl = 0x4445404C,
.p0_mpwrdlctl = 0x38444542,
.p1_mpwrdlctl = 0x4935493A,
};
/* MT41K256M16 (4Gb density) */
static const struct mx6_ddr3_cfg mt41k256m16 = {
.mem_speed = 1600,
.density = 4,
.width = 16,
.banks = 8,
.rowaddr = 15,
.coladdr = 10,
.pagesz = 2,
.trcd = 1375,
.trcmin = 4875,
.trasmin = 3500,
};
#ifdef CONFIG_MX6_DDRCAL
static void spl_dram_print_cal(struct mx6_ddr_sysinfo const *sysinfo)
{
struct mx6_mmdc_calibration calibration = {0};
mmdc_read_calibration(sysinfo, &calibration);
debug(".p0_mpdgctrl0\t= 0x%08X\n", calibration.p0_mpdgctrl0);
debug(".p0_mpdgctrl1\t= 0x%08X\n", calibration.p0_mpdgctrl1);
debug(".p0_mprddlctl\t= 0x%08X\n", calibration.p0_mprddlctl);
debug(".p0_mpwrdlctl\t= 0x%08X\n", calibration.p0_mpwrdlctl);
debug(".p0_mpwldectrl0\t= 0x%08X\n", calibration.p0_mpwldectrl0);
debug(".p0_mpwldectrl1\t= 0x%08X\n", calibration.p0_mpwldectrl1);
debug(".p1_mpdgctrl0\t= 0x%08X\n", calibration.p1_mpdgctrl0);
debug(".p1_mpdgctrl1\t= 0x%08X\n", calibration.p1_mpdgctrl1);
debug(".p1_mprddlctl\t= 0x%08X\n", calibration.p1_mprddlctl);
debug(".p1_mpwrdlctl\t= 0x%08X\n", calibration.p1_mpwrdlctl);
debug(".p1_mpwldectrl0\t= 0x%08X\n", calibration.p1_mpwldectrl0);
debug(".p1_mpwldectrl1\t= 0x%08X\n", calibration.p1_mpwldectrl1);
}
static void spl_dram_perform_cal(struct mx6_ddr_sysinfo const *sysinfo)
{
int ret;
/* Perform DDR DRAM calibration */
udelay(100);
ret = mmdc_do_write_level_calibration(sysinfo);
if (ret) {
printf("DDR: Write level calibration error [%d]\n", ret);
return;
}
ret = mmdc_do_dqs_calibration(sysinfo);
if (ret) {
printf("DDR: DQS calibration error [%d]\n", ret);
return;
}
spl_dram_print_cal(sysinfo);
}
#endif /* CONFIG_MX6_DDRCAL */
static void spl_dram_init(void)
{
struct mx6_ddr_sysinfo sysinfo = {
/* width of data bus:0=16,1=32,2=64 */
.dsize = 2,
/* config for full 4GB range so that get_mem_size() works */
.cs_density = 32, /* 32Gb per CS */
/* single chip select */
.ncs = 1,
.cs1_mirror = 0,
.rtt_wr = 1 /*DDR3_RTT_60_OHM*/, /* RTT_Wr = RZQ/4 */
.rtt_nom = 2 /*DDR3_RTT_120_OHM*/, /* RTT_Nom = RZQ/2 */
.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) */
.pd_fast_exit = 1, /* enable precharge power-down fast exit */
.ddr_type = DDR_TYPE_DDR3,
.refsel = 1, /* Refresh cycles at 32KHz */
.refr = 7, /* 8 refresh commands per refresh cycle */
};
mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
mx6_dram_cfg(&sysinfo, &mx6_4x256mx16_mmdc_calib, &mt41k256m16);
#ifdef CONFIG_MX6_DDRCAL
spl_dram_perform_cal(&sysinfo);
#endif
}
struct fsl_esdhc_cfg usdhc_cfg[] = {
{USDHC2_BASE_ADDR},
{USDHC4_BASE_ADDR},
};
#define USDHC2_CD_GPIO IMX_GPIO_NR(1, 4)
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
switch (cfg->esdhc_base) {
case USDHC2_BASE_ADDR:
ret = !gpio_get_value(USDHC2_CD_GPIO);
break;
case USDHC4_BASE_ADDR:
ret = 1; /* eMMC/uSDHC4 is always present */
break;
}
return ret;
}
int board_mmc_init(bd_t *bd)
{
struct src *psrc = (struct src *)SRC_BASE_ADDR;
unsigned int 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
* 0x3 SD4
*/
switch (reg & 0x3) {
case 0x1:
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;
break;
case 0x3:
SETUP_IOMUX_PADS(usdhc4_pads);
usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
break;
}
return fsl_esdhc_initialize(bd, &usdhc_cfg[0]);
}
void board_init_f(ulong dummy)
{
/* setup AIPS and disable watchdog */
arch_cpu_init();
ccgr_init();
gpr_init();
/* setup GP timer */
timer_init();
setup_iomux_sd();
setup_iomux_uart();
setup_iomux_usb();
/* UART clocks enabled and gd valid - init serial console */
preloader_console_init();
/* DDR initialization */
spl_dram_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
/* load/boot image from boot device */
board_init_r(NULL, 0);
}

42
configs/kp_imx6q_tpc_defconfig Normal file
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CONFIG_ARM=y
CONFIG_ARCH_MX6=y
CONFIG_SYS_TEXT_BASE=0x17800000
CONFIG_SPL_GPIO_SUPPORT=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
CONFIG_MX6_DDRCAL=y
CONFIG_TARGET_KP_IMX6Q_TPC=y
CONFIG_SPL_MMC_SUPPORT=y
CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL_WATCHDOG_SUPPORT=y
CONFIG_DISTRO_DEFAULTS=y
CONFIG_FIT=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/spl_sd.cfg"
CONFIG_BOOTDELAY=3
# CONFIG_USE_BOOTCOMMAND is not set
CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
CONFIG_SPL=y
CONFIG_SPL_RAW_IMAGE_SUPPORT=y
CONFIG_AUTOBOOT_KEYED=y
CONFIG_AUTOBOOT_STOP_STR="."
# CONFIG_CMD_BOOTEFI_HELLO_COMPILE is not set
# CONFIG_CMD_ELF is not set
# CONFIG_CMD_FLASH is not set
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_USB=y
CONFIG_CMD_CACHE=y
CONFIG_CMD_TIME=y
CONFIG_CMD_EXT4_WRITE=y
# CONFIG_ISO_PARTITION is not set
# CONFIG_EFI_PARTITION is not set
CONFIG_ENV_IS_IN_MMC=y
CONFIG_PHYLIB=y
CONFIG_PHY_ATHEROS=y
CONFIG_NETDEVICES=y
CONFIG_FEC_MXC=y
CONFIG_IMX_THERMAL=y
CONFIG_USB=y
CONFIG_USB_STORAGE=y
CONFIG_OF_LIBFDT=y

141
include/configs/kp_imx6q_tpc.h Normal file
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/*
* K+P iMX6Q KP_IMX6Q_TPC board configuration
*
* Copyright (C) 2018 Lukasz Majewski <lukma@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __KP_IMX6Q_TPC_IMX6_CONFIG_H_
#define __KP_IMX6Q_TPC_IMX6_CONFIG_H_
#include <asm/arch/imx-regs.h>
#include "mx6_common.h"
/* SPL */
#include "imx6_spl.h" /* common IMX6 SPL configuration */
/* Miscellaneous configurable options */
#define CONFIG_CMDLINE_TAG
#define CONFIG_SETUP_MEMORY_TAGS
#define CONFIG_INITRD_TAG
#define CONFIG_REVISION_TAG
#define CONFIG_BOUNCE_BUFFER
/* Size of malloc() pool */
#define CONFIG_SYS_MALLOC_LEN (4 * SZ_1M)
/* FEC ethernet */
#define CONFIG_MII
#define IMX_FEC_BASE ENET_BASE_ADDR
#define CONFIG_FEC_XCV_TYPE RGMII
#define CONFIG_ETHPRIME "FEC"
#define CONFIG_FEC_MXC_PHYADDR 0
#define CONFIG_ARP_TIMEOUT 200UL
/* Fuses */
#ifdef CONFIG_CMD_FUSE
#define CONFIG_MXC_OCOTP
#endif
/* I2C Configs */
#define CONFIG_SYS_I2C
#define CONFIG_SYS_I2C_MXC
#define CONFIG_SYS_I2C_MXC_I2C1 /* enable I2C bus 1 */
#define CONFIG_SYS_I2C_MXC_I2C2 /* enable I2C bus 2 */
#define CONFIG_SYS_I2C_SPEED 100000
/* MMC Configs */
#define CONFIG_FSL_ESDHC
#define CONFIG_FSL_USDHC
#define CONFIG_SYS_FSL_ESDHC_ADDR 0
#define CONFIG_SYS_FSL_USDHC_NUM 2
#define CONFIG_SYS_MMC_ENV_DEV 1 /* 0 = SDHC2, 1 = SDHC4 (eMMC) */
/* UART */
#define CONFIG_MXC_UART
#define CONFIG_MXC_UART_BASE UART1_BASE
#define CONFIG_CONS_INDEX 1
#define CONFIG_BAUDRATE 115200
/* USB Configs */
#ifdef CONFIG_CMD_USB
#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
#define CONFIG_USB_HOST_ETHER
#define CONFIG_USB_ETHER_ASIX
#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
#define CONFIG_MXC_USB_FLAGS 0
#define CONFIG_USB_MAX_CONTROLLER_COUNT 2 /* Enabled USB controller number */
#endif
/* Watchdog */
#define CONFIG_HW_WATCHDOG
#define CONFIG_IMX_WATCHDOG
#define CONFIG_WATCHDOG_TIMEOUT_MSECS 60000
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_LOADADDR 0x12000000
#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
#ifndef CONFIG_SPL_BUILD
#define CONFIG_EXTRA_ENV_SETTINGS \
"console=ttymxc0,115200\0" \
"fdt_addr=0x18000000\0" \
"fdt_high=0xffffffff\0" \
"initrd_high=0xffffffff\0" \
"kernel_addr_r=0x10008000\0" \
"fdt_addr_r=0x13000000\0" \
"ramdisk_addr_r=0x18000000\0" \
"scriptaddr=0x14000000\0" \
"kernel_file=fitImage\0"\
"rdinit=/sbin/init\0" \
"addinitrd=setenv bootargs ${bootargs} rdinit=${rdinit} ${debug} \0" \
"fit_config=mx6q_tpc70_conf\0" \
"upd_image=st.4k\0" \
"updargs=setenv bootargs console=${console} ${smp}"\
"rdinit=${rdinit} ${debug} ${displayargs}\0" \
"loadusb=usb start; " \
"fatload usb 0 ${loadaddr} ${upd_image}\0" \
"usbupd=echo Booting update from usb ...; " \
"setenv bootargs; " \
"run updargs; " \
"run loadusb; " \
"bootm ${loadaddr}#${fit_config}\0" \
BOOTENV
#define CONFIG_BOOTCOMMAND "run usbupd; run distro_bootcmd"
#define BOOT_TARGET_DEVICES(func) \
func(MMC, mmc, 0) \
func(MMC, mmc, 1) \
func(USB, usb, 0) \
func(DHCP, dhcp, na)
#include <config_distro_bootcmd.h>
#endif
/* Physical Memory Map */
#define CONFIG_NR_DRAM_BANKS 1
#define PHYS_SDRAM MMDC0_ARB_BASE_ADDR
#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM
#define CONFIG_SYS_INIT_RAM_ADDR IRAM_BASE_ADDR
#define CONFIG_SYS_INIT_RAM_SIZE IRAM_SIZE
#define CONFIG_SYS_INIT_SP_OFFSET \
(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
#define CONFIG_SYS_INIT_SP_ADDR \
(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
/* Environment */
#define CONFIG_ENV_SIZE (SZ_8K)
#define CONFIG_ENV_OFFSET 0x100000
#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
#endif /* __KP_IMX6Q_TPC_IMX6_CONFIG_H_ */