1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <device/mmio.h>
4 #include <boot/coreboot_tables.h>
5 #include <delay.h>
6 #include <device/device.h>
7 #include <device/i2c_simple.h>
8 #include <gpio.h>
9 #include <soc/display.h>
10 #include <soc/grf.h>
11 #include <soc/soc.h>
12 #include <soc/pmu.h>
13 #include <soc/clock.h>
14 #include <soc/rk808.h>
15 #include <soc/spi.h>
16 #include <soc/i2c.h>
17 #include <symbols.h>
18
19 #include "board.h"
20
configure_usb(void)21 static void configure_usb(void)
22 {
23 gpio_output(GPIO(0, B, 3), 1); /* HOST1_PWR_EN */
24 gpio_output(GPIO(0, B, 4), 1); /* USBOTG_PWREN_H */
25 gpio_output(GPIO(7, C, 5), 1); /* 5V_DRV */
26 }
27
configure_sdmmc(void)28 static void configure_sdmmc(void)
29 {
30 write32(&rk3288_grf->iomux_sdmmc0, IOMUX_SDMMC0);
31
32 /* use sdmmc0 io, disable JTAG function */
33 write32(&rk3288_grf->soc_con0, RK_CLRBITS(1 << 12));
34
35 /* Note: these power rail definitions are copied in romstage.c */
36 rk808_configure_ldo(4, 3300); /* VCCIO_SD */
37 rk808_configure_ldo(5, 3300); /* VCC33_SD */
38
39 gpio_input(GPIO(7, A, 5)); /* SD_DET */
40 }
41
configure_emmc(void)42 static void configure_emmc(void)
43 {
44 write32(&rk3288_grf->iomux_emmcdata, IOMUX_EMMCDATA);
45 write32(&rk3288_grf->iomux_emmcpwren, IOMUX_EMMCPWREN);
46 write32(&rk3288_grf->iomux_emmccmd, IOMUX_EMMCCMD);
47
48 gpio_output(GPIO(2, B, 1), 1); /* EMMC_RST_L */
49 }
50
configure_codec(void)51 static void configure_codec(void)
52 {
53 write32(&rk3288_grf->iomux_i2c2, IOMUX_I2C2); /* CODEC I2C */
54 i2c_init(2, 400*KHz); /* CODEC I2C */
55
56 write32(&rk3288_grf->iomux_i2s, IOMUX_I2S);
57 write32(&rk3288_grf->iomux_i2sclk, IOMUX_I2SCLK);
58
59 rk808_configure_ldo(6, 1800); /* VCC18_CODEC */
60
61 /* AUDIO IO domain 1.8V voltage selection */
62 write32(&rk3288_grf->io_vsel, RK_SETBITS(1 << 6));
63 rkclk_configure_i2s(12288000);
64 }
65
configure_vop(void)66 static void configure_vop(void)
67 {
68 write32(&rk3288_grf->iomux_lcdc, IOMUX_LCDC);
69
70 /* lcdc(vop) iodomain select 1.8V */
71 write32(&rk3288_grf->io_vsel, RK_SETBITS(1 << 0));
72
73 gpio_output(GPIO(2, B, 5), 1); /* AVDD_1V8_DISP_EN */
74 rk808_configure_ldo(7, 2500); /* VCC10_LCD_PWREN_H */
75 gpio_output(GPIO(7, B, 6), 1); /* LCD_EN */
76 rk808_configure_switch(1, 1); /* VCC33_LCD */
77
78 /* enable edp HPD */
79 gpio_input_pulldown(GPIO(7, B, 3));
80 write32(&rk3288_grf->iomux_edp_hotplug, IOMUX_EDP_HOTPLUG);
81 }
82
mainboard_init(struct device * dev)83 static void mainboard_init(struct device *dev)
84 {
85 gpio_output(GPIO_RESET, 0);
86
87 configure_usb();
88 configure_sdmmc();
89 configure_emmc();
90 configure_codec();
91 configure_vop();
92 }
93
mainboard_enable(struct device * dev)94 static void mainboard_enable(struct device *dev)
95 {
96 dev->ops->init = &mainboard_init;
97 }
98
99 struct chip_operations mainboard_ops = {
100 .enable_dev = mainboard_enable,
101 };
102
lb_board(struct lb_header * header)103 void lb_board(struct lb_header *header)
104 {
105 struct lb_range *dma;
106
107 dma = (struct lb_range *)lb_new_record(header);
108 dma->tag = LB_TAG_DMA;
109 dma->size = sizeof(*dma);
110 dma->range_start = (uintptr_t)_dma_coherent;
111 dma->range_size = REGION_SIZE(dma_coherent);
112 }
113
mainboard_power_on_backlight(void)114 void mainboard_power_on_backlight(void)
115 {
116 gpio_output(GPIO(2, B, 4), 1); /* BL_PWR_EN */
117 mdelay(120);
118 gpio_output(GPIO(7, A, 0), 1); /* LCD_BL */
119 mdelay(10);
120 gpio_output(GPIO_BACKLIGHT, 1); /* BL_EN */
121 }
122