[U-Boot] [PATCH v2 1/2] imx: board: Add support for the K+P's kp_imx6q_tpc board
Lukasz Majewski
lukma at denx.de
Thu Apr 5 07:04:38 UTC 2018
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
---
Changes in v2:
- Provide usbupd command to check for USB updates
- Drop DCD table DDR3 setup in favor of u-boot mainline
- Enable DDR3 calibration for iMX6Q
- Add boot log for a reference
Dependency:
- This board requires following patch for proper operation:
[U-Boot] [PATCH] ARM: mx6: ddr: Add write leveling correction code
Signed-off-by: Lukasz Majewski <lukma at denx.de>
---
arch/arm/mach-imx/mx6/Kconfig | 11 +
board/k+p/kp_imx6q_tpc/Kconfig | 12 ++
board/k+p/kp_imx6q_tpc/MAINTAINERS | 6 +
board/k+p/kp_imx6q_tpc/Makefile | 11 +
board/k+p/kp_imx6q_tpc/kp_imx6q_tpc.c | 302 ++++++++++++++++++++++++++
board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c | 338 ++++++++++++++++++++++++++++++
configs/kp_imx6q_tpc_defconfig | 42 ++++
include/configs/kp_imx6q_tpc.h | 141 +++++++++++++
8 files changed, 863 insertions(+)
create mode 100644 board/k+p/kp_imx6q_tpc/Kconfig
create mode 100644 board/k+p/kp_imx6q_tpc/MAINTAINERS
create mode 100644 board/k+p/kp_imx6q_tpc/Makefile
create mode 100644 board/k+p/kp_imx6q_tpc/kp_imx6q_tpc.c
create mode 100644 board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c
create mode 100644 configs/kp_imx6q_tpc_defconfig
create mode 100644 include/configs/kp_imx6q_tpc.h
diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig
index d4ce38db8d..aa6f5facbf 100644
--- a/arch/arm/mach-imx/mx6/Kconfig
+++ b/arch/arm/mach-imx/mx6/Kconfig
@@ -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"
diff --git a/board/k+p/kp_imx6q_tpc/Kconfig b/board/k+p/kp_imx6q_tpc/Kconfig
new file mode 100644
index 0000000000..62e34978ec
--- /dev/null
+++ b/board/k+p/kp_imx6q_tpc/Kconfig
@@ -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
diff --git a/board/k+p/kp_imx6q_tpc/MAINTAINERS b/board/k+p/kp_imx6q_tpc/MAINTAINERS
new file mode 100644
index 0000000000..6c4c8dd28e
--- /dev/null
+++ b/board/k+p/kp_imx6q_tpc/MAINTAINERS
@@ -0,0 +1,6 @@
+KP_IMX6Q_TPC BOARD
+M: Lukasz Majewski <lukma at denx.de>
+S: Maintained
+F: board/k+p/kp_imx6q_tpc/
+F: include/configs/kp_imx6q_tpc.h
+F: configs/kp_imx6q_tpc_defconfig
diff --git a/board/k+p/kp_imx6q_tpc/Makefile b/board/k+p/kp_imx6q_tpc/Makefile
new file mode 100644
index 0000000000..51cbd3e843
--- /dev/null
+++ b/board/k+p/kp_imx6q_tpc/Makefile
@@ -0,0 +1,11 @@
+#
+# Copyright (C) 2018 Lukasz Majewski <lukma at 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
diff --git a/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc.c b/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc.c
new file mode 100644
index 0000000000..9a5b88029f
--- /dev/null
+++ b/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc.c
@@ -0,0 +1,302 @@
+/*
+ * K+P iMX6Q KP_IMX6Q_TPC board configuration
+ *
+ * Copyright (C) 2018 Lukasz Majewski <lukma at 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;
+}
diff --git a/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c b/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c
new file mode 100644
index 0000000000..3fdfea7546
--- /dev/null
+++ b/board/k+p/kp_imx6q_tpc/kp_imx6q_tpc_spl.c
@@ -0,0 +1,338 @@
+/*
+ * K+P iMX6Q KP_IMX6Q_TPC board configuration
+ *
+ * Copyright (C) 2018 Lukasz Majewski <lukma at 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);
+}
diff --git a/configs/kp_imx6q_tpc_defconfig b/configs/kp_imx6q_tpc_defconfig
new file mode 100644
index 0000000000..d2c6e2e6ba
--- /dev/null
+++ b/configs/kp_imx6q_tpc_defconfig
@@ -0,0 +1,42 @@
+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
diff --git a/include/configs/kp_imx6q_tpc.h b/include/configs/kp_imx6q_tpc.h
new file mode 100644
index 0000000000..fae2faec2f
--- /dev/null
+++ b/include/configs/kp_imx6q_tpc.h
@@ -0,0 +1,141 @@
+/*
+ * K+P iMX6Q KP_IMX6Q_TPC board configuration
+ *
+ * Copyright (C) 2018 Lukasz Majewski <lukma at 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_ */
--
2.11.0
More information about the U-Boot
mailing list