board/seco: Add mx6q-uq7 basic board support
Add basic SECO MX6Q/uQ7 board support (Ethernet, UART, SD are supported).
It also adds a Kconfig skeleton to later add more SECO board (supporting
SoC and board variants).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
diff --git a/board/seco/common/Makefile b/board/seco/common/Makefile
new file mode 100644
index 0000000..9e37ebb
--- /dev/null
+++ b/board/seco/common/Makefile
@@ -0,0 +1,2 @@
+
+obj-$(CONFIG_TARGET_SECOMX6) += mx6.o
diff --git a/board/seco/common/mx6.c b/board/seco/common/mx6.c
new file mode 100644
index 0000000..2f14f59
--- /dev/null
+++ b/board/seco/common/mx6.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2015 ECA Sinters
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ * Modified by: Boris Brezillon <boris.brezillon@free-electrons.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/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/arch/mxc_hdmi.h>
+#include <asm/arch/crm_regs.h>
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <micrel.h>
+#include <asm/imx-common/mxc_i2c.h>
+#include <i2c.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)
+
+static iomux_v3_cfg_t const uart2_pads[] = {
+ MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+ MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+void seco_mx6_setup_uart_iomux(void)
+{
+ imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
+}
+
+#define ENET_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
+ PAD_CTL_SPEED_MED | \
+ PAD_CTL_DSE_40ohm | \
+ PAD_CTL_HYS)
+
+static iomux_v3_cfg_t const enet_pads[] = {
+ MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+ MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+};
+
+void seco_mx6_setup_enet_iomux(void)
+{
+ imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+}
+
+int seco_mx6_rgmii_rework(struct phy_device *phydev)
+{
+ /* control data pad skew - devaddr = 0x02, register = 0x04 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
+ /* rx data pad skew - devaddr = 0x02, register = 0x05 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
+ /* tx data pad skew - devaddr = 0x02, register = 0x05 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
+
+ /* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
+ ksz9031_phy_extended_write(phydev, 0x02,
+ MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
+ MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
+ return 0;
+}
+
+#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
+ PAD_CTL_SPEED_LOW | \
+ PAD_CTL_DSE_80ohm | \
+ PAD_CTL_SRE_FAST | \
+ PAD_CTL_HYS)
+
+static iomux_v3_cfg_t const usdhc3_pads[] = {
+ MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc4_pads[] = {
+ MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+ MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+void seco_mx6_setup_usdhc_iomux(int id)
+{
+ switch (id) {
+ case 3:
+ imx_iomux_v3_setup_multiple_pads(usdhc3_pads,
+ ARRAY_SIZE(usdhc3_pads));
+ break;
+
+ case 4:
+ imx_iomux_v3_setup_multiple_pads(usdhc4_pads,
+ ARRAY_SIZE(usdhc4_pads));
+ break;
+
+ default:
+ printf("Warning: invalid usdhc id (%d)\n", id);
+ break;
+ }
+}
diff --git a/board/seco/common/mx6.h b/board/seco/common/mx6.h
new file mode 100644
index 0000000..a05db67
--- /dev/null
+++ b/board/seco/common/mx6.h
@@ -0,0 +1,9 @@
+#ifndef __SECO_COMMON_MX6_H
+#define __SECO_COMMON_MX6_H
+
+void seco_mx6_setup_uart_iomux(void);
+void seco_mx6_setup_enet_iomux(void);
+int seco_mx6_rgmii_rework(struct phy_device *phydev);
+void seco_mx6_setup_usdhc_iomux(int id);
+
+#endif /* __SECO_COMMON_MX6_H */