1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright 2019 Toradex
4 */
5
6 #include <common.h>
7 #include <init.h>
8
9 #include <asm/arch/clock.h>
10 #include <asm/arch/imx8-pins.h>
11 #include <asm/arch/iomux.h>
12 #include <asm/arch/sci/sci.h>
13 #include <asm/arch/sys_proto.h>
14 #include <asm/gpio.h>
15 #include <asm/io.h>
16 #include <env.h>
17 #include <errno.h>
18 #include <linux/libfdt.h>
19
20 #include "../common/tdx-cfg-block.h"
21
22 DECLARE_GLOBAL_DATA_PTR;
23
24 #define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
25 (SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
26 (SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
27 (SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
28
29 static iomux_cfg_t uart3_pads[] = {
30 SC_P_FLEXCAN2_RX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
31 SC_P_FLEXCAN2_TX | MUX_MODE_ALT(2) | MUX_PAD_CTRL(UART_PAD_CTRL),
32 /* Transceiver FORCEOFF# signal, mux to use pull-up */
33 SC_P_QSPI0B_DQS | MUX_MODE_ALT(4) | MUX_PAD_CTRL(UART_PAD_CTRL),
34 };
35
setup_iomux_uart(void)36 static void setup_iomux_uart(void)
37 {
38 imx8_iomux_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
39 }
40
board_early_init_f(void)41 int board_early_init_f(void)
42 {
43 sc_pm_clock_rate_t rate;
44 sc_err_t err = 0;
45
46 /*
47 * This works around that having only UART3 up the baudrate is 1.2M
48 * instead of 115.2k. Set UART0 clock root to 80 MHz
49 */
50 rate = 80000000;
51 err = sc_pm_set_clock_rate(-1, SC_R_UART_0, SC_PM_CLK_PER, &rate);
52 if (err != SC_ERR_NONE)
53 return 0;
54
55 /* Set UART3 clock root to 80 MHz and enable it */
56 rate = SC_80MHZ;
57 err = sc_pm_setup_uart(SC_R_UART_3, rate);
58 if (err != SC_ERR_NONE)
59 return 0;
60
61 setup_iomux_uart();
62
63 return 0;
64 }
65
66 #if IS_ENABLED(CONFIG_DM_GPIO)
board_gpio_init(void)67 static void board_gpio_init(void)
68 {
69 /* TODO */
70 }
71 #else
board_gpio_init(void)72 static inline void board_gpio_init(void) {}
73 #endif
74
75 #if IS_ENABLED(CONFIG_FEC_MXC)
76 #include <miiphy.h>
77
board_phy_config(struct phy_device * phydev)78 int board_phy_config(struct phy_device *phydev)
79 {
80 if (phydev->drv->config)
81 phydev->drv->config(phydev);
82
83 return 0;
84 }
85 #endif
86
checkboard(void)87 int checkboard(void)
88 {
89 puts("Model: Toradex Colibri iMX8X\n");
90
91 build_info();
92 print_bootinfo();
93
94 return 0;
95 }
96
board_init(void)97 int board_init(void)
98 {
99 board_gpio_init();
100
101 return 0;
102 }
103
detail_board_ddr_info(void)104 void detail_board_ddr_info(void)
105 {
106 puts("\nDDR ");
107 }
108
109 /*
110 * Board specific reset that is system reset.
111 */
reset_cpu(ulong addr)112 void reset_cpu(ulong addr)
113 {
114 /* TODO */
115 }
116
117 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
ft_board_setup(void * blob,bd_t * bd)118 int ft_board_setup(void *blob, bd_t *bd)
119 {
120 return ft_common_board_setup(blob, bd);
121 }
122 #endif
123
board_mmc_get_env_dev(int devno)124 int board_mmc_get_env_dev(int devno)
125 {
126 return devno;
127 }
128
board_late_init(void)129 int board_late_init(void)
130 {
131 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
132 /* TODO move to common */
133 env_set("board_name", "Colibri iMX8QXP");
134 env_set("board_rev", "v1.0");
135 #endif
136
137 return 0;
138 }
139