2 * Copyright (C) 2015 Technexion Ltd.
4 * Author: Richard Hu <richard.hu@technexion.com>
6 * SPDX-License-Identifier: GPL-2.0+
9 #include <asm/arch/clock.h>
10 #include <asm/arch/iomux.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/crm_regs.h>
13 #include <asm/arch/mx6-pins.h>
14 #include <asm/arch/sys_proto.h>
16 #include <asm/imx-common/iomux-v3.h>
21 #include <fsl_esdhc.h>
22 #include <linux/sizes.h>
25 DECLARE_GLOBAL_DATA_PTR;
27 #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
28 PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
29 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
31 #define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
32 PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
33 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
35 #define OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
36 PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
37 PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
39 #define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
40 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE)
42 #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
43 PAD_CTL_SPEED_HIGH | \
44 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST)
46 #define ENET_CLK_PAD_CTRL (PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
48 #define RMII_PHY_RESET IMX_GPIO_NR(1, 28)
50 static iomux_v3_cfg_t const fec_pads[] = {
51 MX6_PAD_ENET1_TX_EN__ENET2_MDC | MUX_PAD_CTRL(MDIO_PAD_CTRL),
52 MX6_PAD_ENET1_TX_DATA1__ENET2_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
53 MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
54 MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
55 MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
56 MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
57 MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | MUX_PAD_CTRL(ENET_PAD_CTRL),
58 MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | MUX_PAD_CTRL(ENET_PAD_CTRL),
59 MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
60 MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | MUX_PAD_CTRL(ENET_PAD_CTRL),
61 MX6_PAD_UART4_TX_DATA__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL),
64 static void setup_iomux_fec(void)
66 imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
69 int board_eth_init(bd_t *bis)
73 gpio_direction_output(RMII_PHY_RESET, 0);
75 * According to KSZ8081MNX-RNB manual:
76 * For warm reset, the reset (RST#) pin should be asserted low for a
77 * minimum of 500μs. The strap-in pin values are read and updated
78 * at the de-assertion of reset.
82 gpio_direction_output(RMII_PHY_RESET, 1);
84 * According to KSZ8081MNX-RNB manual:
85 * After the de-assertion of reset, wait a minimum of 100μs before
86 * starting programming on the MIIM (MDC/MDIO) interface.
90 return fecmxc_initialize(bis);
93 static int setup_fec(void)
95 struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
98 clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC2_MASK,
99 IOMUX_GPR1_FEC2_CLOCK_MUX1_SEL_MASK);
101 ret = enable_fec_anatop_clock(1, ENET_50MHZ);
110 int board_phy_config(struct phy_device *phydev)
112 phy_write(phydev, MDIO_DEVAD_NONE, 0x1f, 0x8190);
114 if (phydev->drv->config)
115 phydev->drv->config(phydev);
122 gd->ram_size = imx_ddr_size();
127 static iomux_v3_cfg_t const uart6_pads[] = {
128 MX6_PAD_CSI_MCLK__UART6_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
129 MX6_PAD_CSI_PIXCLK__UART6_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
132 static iomux_v3_cfg_t const usdhc1_pads[] = {
133 MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
134 MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
135 MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
136 MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
137 MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
138 MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
139 MX6_PAD_NAND_READY_B__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
140 MX6_PAD_NAND_CE0_B__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
141 MX6_PAD_NAND_CE1_B__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
142 MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
145 #define USB_OTHERREGS_OFFSET 0x800
146 #define UCTRL_PWR_POL (1 << 9)
148 static iomux_v3_cfg_t const usb_otg_pad[] = {
149 MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL),
152 static void setup_iomux_uart(void)
154 imx_iomux_v3_setup_multiple_pads(uart6_pads, ARRAY_SIZE(uart6_pads));
157 static void setup_usb(void)
159 imx_iomux_v3_setup_multiple_pads(usb_otg_pad, ARRAY_SIZE(usb_otg_pad));
162 static struct fsl_esdhc_cfg usdhc_cfg[1] = {
166 int board_mmc_getcd(struct mmc *mmc)
171 int board_mmc_init(bd_t *bis)
173 imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads));
174 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
175 return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
178 int board_early_init_f(void)
185 int board_usb_phy_mode(int port)
188 return USB_INIT_HOST;
190 return USB_INIT_DEVICE;
193 int board_ehci_hcd_init(int port)
200 usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
203 /* Set Power polarity */
204 setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
211 /* Address of boot parameters */
212 gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
222 puts("Board: PICO-IMX6UL-EMMC\n");