diff options
Diffstat (limited to 'src/mainboard/google/asurada/mainboard.c')
| -rw-r--r-- | src/mainboard/google/asurada/mainboard.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/mainboard/google/asurada/mainboard.c b/src/mainboard/google/asurada/mainboard.c index 32bd407817..8e7f2e8480 100644 --- a/src/mainboard/google/asurada/mainboard.c +++ b/src/mainboard/google/asurada/mainboard.c @@ -1,11 +1,21 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include <bl31.h> +#include <bootmode.h> #include <console/console.h> +#include <delay.h> #include <device/device.h> #include <device/mmio.h> +#include <drivers/analogix/anx7625/anx7625.h> +#include <edid.h> +#include <gpio.h> +#include <soc/ddp.h> #include <soc/dpm.h> +#include <soc/dsi.h> #include <soc/gpio.h> +#include <soc/gpio_common.h> +#include <soc/i2c.h> +#include <soc/mtcmos.h> #include <soc/regulator.h> #include <soc/spm.h> #include <soc/usb.h> @@ -27,6 +37,17 @@ #define MSDC1_GPIO_MODE1_MASK 0x7 #define MSDC1_GPIO_MODE1_VALUE 0x1 +/* GPIO names */ +#define GPIO_EDPBRDG_INT_ODL GPIO(EINT6) /* 6 */ +#define GPIO_EDPBRDG_PWREN GPIO(DSI_TE) /* 41 */ +#define GPIO_EDPBRDG_RST_ODL GPIO(LCM_RST) /* 42 */ +#define GPIO_EN_PP3300_EDP_DX GPIO(PERIPHERAL_EN1) /* 127 */ +#define GPIO_EN_PP1800_EDPBRDG_DX GPIO(PERIPHERAL_EN2) /* 128 */ +#define GPIO_EN_PP1000_EDPBRDG GPIO(PERIPHERAL_EN3) /* 129 */ +#define GPIO_EN_PP3300_DISPLAY_DX GPIO(CAM_CLK3) /* 136 */ +#define GPIO_AP_EDP_BKLTEN GPIO(KPROW1) /* 152 */ +#define GPIO_BL_PWM_1V8 GPIO(DISP_PWM) /* 40 */ + static void register_reset_to_bl31(void) { static struct bl_aux_param_gpio param_reset = { @@ -38,6 +59,75 @@ static void register_reset_to_bl31(void) register_bl31_aux_param(¶m_reset.h); } +/* Set up backlight control pins as output pin and power-off by default */ +static void configure_backlight_and_bridge(void) +{ + /* Disable backlight before turning on bridge */ + gpio_output(GPIO_AP_EDP_BKLTEN, 0); + gpio_output(GPIO_BL_PWM_1V8, 0); + gpio_output(GPIO_EN_PP3300_DISPLAY_DX, 1); + + /* Turn on bridge */ + gpio_output(GPIO_EDPBRDG_RST_ODL, 0); + gpio_output(GPIO_EN_PP1000_EDPBRDG, 1); + gpio_output(GPIO_EN_PP1800_EDPBRDG_DX, 1); + gpio_output(GPIO_EN_PP3300_EDP_DX, 1); + mdelay(2); + gpio_output(GPIO_EDPBRDG_PWREN, 1); + mdelay(10); + gpio_output(GPIO_EDPBRDG_RST_ODL, 1); +} + +static bool configure_display(void) +{ + struct edid edid; + const u8 i2c_bus = 3; + + printk(BIOS_INFO, "%s: Starting display init\n", __func__); + + configure_backlight_and_bridge(); + mtk_i2c_bus_init(i2c_bus); + + if (anx7625_init(i2c_bus)) { + printk(BIOS_ERR, "%s: Can't init ANX7625 bridge\n", __func__); + return false; + } + + if (anx7625_dp_get_edid(i2c_bus, &edid)) { + printk(BIOS_ERR, "%s: Can't get panel's edid\n", __func__); + return false; + } + if (anx7625_dp_start(i2c_bus, &edid) < 0) { + printk(BIOS_ERR, "%s: Can't start display via ANX7625\n", __func__); + return false; + } + + const char *name = edid.ascii_string; + if (name[0] == '\0') + name = "unknown name"; + printk(BIOS_INFO, "%s: '%s %s' %dx%d@%dHz\n", __func__, + edid.manufacturer_name, name, edid.mode.ha, edid.mode.va, + edid.mode.refresh); + + mtcmos_display_power_on(); + mtcmos_protect_display_bus(); + + edid_set_framebuffer_bits_per_pixel(&edid, 32, 0); + mtk_ddp_init(); + u32 mipi_dsi_flags = (MIPI_DSI_MODE_VIDEO | + MIPI_DSI_MODE_VIDEO_SYNC_PULSE | + MIPI_DSI_MODE_LPM | + MIPI_DSI_MODE_EOT_PACKET); + + if (mtk_dsi_init(mipi_dsi_flags, MIPI_DSI_FMT_RGB888, 4, &edid, NULL) < 0) { + printk(BIOS_ERR, "%s: Failed in DSI init\n", __func__); + return false; + } + mtk_ddp_mode_set(&edid); + set_vbe_mode_info_valid(&edid, 0); + return true; +} + static void configure_emmc(void) { void *gpio_base = (void *)IOCFG_TL_BASE; @@ -115,6 +205,11 @@ static void mainboard_init(struct device *dev) if (spm_init()) printk(BIOS_ERR, "spm init fail, system suspend may stuck\n"); + + if (display_init_required()) + configure_display(); + else + printk(BIOS_INFO, "%s: Skipped display init\n", __func__); } static void mainboard_enable(struct device *dev) |