1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2013 Freescale Semiconductor, Inc.
4 * Copyright (C) 2015 ECA Sinters
5 *
6 * Author: Fabio Estevam <fabio.estevam@freescale.com>
7 * Modified by: Boris Brezillon <boris.brezillon@free-electrons.com>
8 */
9
10 #include <asm/arch/clock.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/iomux.h>
13 #include <asm/arch/mx6-pins.h>
14 #include <linux/errno.h>
15 #include <asm/gpio.h>
16 #include <asm/mach-imx/iomux-v3.h>
17 #include <asm/mach-imx/boot_mode.h>
18 #include <mmc.h>
19 #include <fsl_esdhc.h>
20 #include <miiphy.h>
21 #include <netdev.h>
22 #include <asm/arch/mxc_hdmi.h>
23 #include <asm/arch/crm_regs.h>
24 #include <linux/fb.h>
25 #include <ipu_pixfmt.h>
26 #include <asm/io.h>
27 #include <asm/arch/sys_proto.h>
28 #include <micrel.h>
29 #include <asm/mach-imx/mxc_i2c.h>
30 #include <i2c.h>
31
32 #define UART_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
33 PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
34 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
35
36 static iomux_v3_cfg_t const uart2_pads[] = {
37 MX6_PAD_EIM_D26__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
38 MX6_PAD_EIM_D27__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
39 };
40
seco_mx6_setup_uart_iomux(void)41 void seco_mx6_setup_uart_iomux(void)
42 {
43 imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
44 }
45
46 #define ENET_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
47 PAD_CTL_SPEED_MED | \
48 PAD_CTL_DSE_40ohm | \
49 PAD_CTL_HYS)
50
51 static iomux_v3_cfg_t const enet_pads[] = {
52 MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
53 MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
54 MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
55 MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
56 MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
57 MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
58 MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
59 MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
60 MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
61 MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
62 MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
63 MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
64 MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
65 MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
66 MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
67 };
68
seco_mx6_setup_enet_iomux(void)69 void seco_mx6_setup_enet_iomux(void)
70 {
71 imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
72 }
73
seco_mx6_rgmii_rework(struct phy_device * phydev)74 int seco_mx6_rgmii_rework(struct phy_device *phydev)
75 {
76 /* control data pad skew - devaddr = 0x02, register = 0x04 */
77 ksz9031_phy_extended_write(phydev, 0x02,
78 MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
79 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
80 /* rx data pad skew - devaddr = 0x02, register = 0x05 */
81 ksz9031_phy_extended_write(phydev, 0x02,
82 MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
83 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
84 /* tx data pad skew - devaddr = 0x02, register = 0x05 */
85 ksz9031_phy_extended_write(phydev, 0x02,
86 MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
87 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x0000);
88
89 /* gtx and rx clock pad skew - devaddr = 0x02, register = 0x08 */
90 ksz9031_phy_extended_write(phydev, 0x02,
91 MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
92 MII_KSZ9031_MOD_DATA_NO_POST_INC, 0x03FF);
93 return 0;
94 }
95
96 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
97 PAD_CTL_SPEED_LOW | \
98 PAD_CTL_DSE_80ohm | \
99 PAD_CTL_SRE_FAST | \
100 PAD_CTL_HYS)
101
102 static iomux_v3_cfg_t const usdhc3_pads[] = {
103 MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
104 MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
105 MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
106 MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
107 MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
108 MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
109 };
110
111 static iomux_v3_cfg_t const usdhc4_pads[] = {
112 MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
113 MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
114 MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
115 MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
116 MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
117 MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
118 };
119
seco_mx6_setup_usdhc_iomux(int id)120 void seco_mx6_setup_usdhc_iomux(int id)
121 {
122 switch (id) {
123 case 3:
124 imx_iomux_v3_setup_multiple_pads(usdhc3_pads,
125 ARRAY_SIZE(usdhc3_pads));
126 break;
127
128 case 4:
129 imx_iomux_v3_setup_multiple_pads(usdhc4_pads,
130 ARRAY_SIZE(usdhc4_pads));
131 break;
132
133 default:
134 printf("Warning: invalid usdhc id (%d)\n", id);
135 break;
136 }
137 }
138