diff options
Diffstat (limited to 'src/mainboard/google/kukui/mainboard.c')
| -rw-r--r-- | src/mainboard/google/kukui/mainboard.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/mainboard/google/kukui/mainboard.c b/src/mainboard/google/kukui/mainboard.c index 40b8a49c61..7bf2580751 100644 --- a/src/mainboard/google/kukui/mainboard.c +++ b/src/mainboard/google/kukui/mainboard.c @@ -13,12 +13,22 @@ * GNU General Public License for more details. */ +#include <boardid.h> +#include <bootmode.h> +#include <console/console.h> +#include <delay.h> #include <device/device.h> +#include <edid.h> +#include <gpio.h> +#include <soc/ddp.h> +#include <soc/dsi.h> #include <soc/gpio.h> #include <soc/mmu_operations.h> #include <soc/mtcmos.h> #include <soc/usb.h> +#include "panel.h" + static void configure_emmc(void) { const gpio_t emmc_pin[] = { @@ -49,8 +59,99 @@ static void configure_audio(void) gpio_set_mode(GPIO(CAM_PDN0), PAD_CAM_PDN0_FUNC_I2S2_MCK); gpio_set_mode(GPIO(EINT3), PAD_EINT3_FUNC_I2S3_DO); } + +/* Default implementation for boards without panels defined yet. */ +struct panel_description __weak *get_panel_description(int panel_id) +{ + printk(BIOS_ERR, "%s: ERROR: No panels defined for board: %s.\n", + __func__, CONFIG_MAINBOARD_PART_NUMBER); + return NULL; +} + +/* Set up backlight control pins as output pin and power-off by default */ +static void configure_panel_backlight(void) +{ + gpio_output(GPIO(PERIPHERAL_EN13), 0); + gpio_output(GPIO(DISP_PWM), 0); +} + +static void power_on_panel(struct panel_description *panel) +{ + if (panel->power_on) { + panel->power_on(); + return; + } + + /* Default power sequence for most panels. */ + gpio_output(GPIO_LCM_RST_1V8, 0); + gpio_output(GPIO_PPVARP_LCD_EN, 1); + gpio_output(GPIO_PPVARN_LCD_EN, 1); + gpio_output(GPIO_PP1800_LCM_EN, 1); + gpio_output(GPIO_PP3300_LCM_EN, 1); + mdelay(6); + gpio_output(GPIO_LCM_RST_1V8, 1); + mdelay(6); +} + +static struct panel_description *get_active_panel(void) +{ + /* TODO(hungte) Create a dedicated panel_id() in board_id.c */ + int panel_id = sku_id() >> 4; + + struct panel_description *panel = get_panel_description(panel_id); + if (!panel) { + printk(BIOS_ERR, "%s: Panel %d is not supported.\n", + __func__, panel_id); + return NULL; + } + const char *mode_name = panel->edid.mode.name; + const char *name = panel->edid.ascii_string; + if (name[0] == '\0') + name = "unknown name"; + printk(BIOS_INFO, "%s: Found ID %d: '%s' %s\n", __func__, + panel_id, name, mode_name ? mode_name : "(unknown mode)"); + return panel; +} + +static bool configure_display(void) +{ + struct panel_description *panel = get_active_panel(); + if (!panel) + return false; + + mtcmos_display_power_on(); + mtcmos_protect_display_bus(); + configure_panel_backlight(); + power_on_panel(panel); + + struct edid *edid = &panel->edid; + 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); + if (mtk_dsi_init(mipi_dsi_flags, MIPI_DSI_FMT_RGB888, 4, edid, + panel->init) < 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); + set_vbe_framebuffer_orientation(panel->orientation); + return true; +} + static void mainboard_init(struct device *dev) { + if (display_init_required()) { + printk(BIOS_INFO, "%s: Starting display init.\n", __func__); + if (!configure_display()) + printk(BIOS_ERR, "%s: Failed to init display.\n", + __func__); + } else { + printk(BIOS_INFO, "%s: Skipped display init.\n", __func__); + } + configure_emmc(); configure_usb(); configure_audio(); |