From 3b4c45efa264ab68512eeca0dc5b9d65283dd8bc Mon Sep 17 00:00:00 2001 From: Vinod Polimera Date: Tue, 3 Mar 2020 12:13:26 +0530 Subject: sc7180: Add display hardware pipe line initialization Add sc7180 display hardware pipeline programming support and invoke the display initialization from soc_init. Changes in V1: - added display init required check. - added edid read function using i2c communication. - added sn65dsi86 bridge driver to init bridge. - moved display initialization to mainboard file. Changes in V2: - moved diplay init sequence to mainboard file - moved edid read function to bridge driver. - calculated timing paramters using edid parameters. - removed command mode config code. - moved bridge driver to drivers/ti. - seperated out bridge and soc code with mainboard file as interface. Changes in V3: - add GPIO selection at runtime based on boardid. - add vbif register struct overlay. Changes in V4: - update gpio config for lazor board. Change-Id: I7d5e3f1781c48759553243abeb3d694f76cd008e Signed-off-by: Vinod Polimera Reviewed-on: https://review.coreboot.org/c/coreboot/+/39615 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner --- src/mainboard/google/trogdor/board.h | 5 +++ src/mainboard/google/trogdor/mainboard.c | 63 +++++++++++++++++++++++++++++++- 2 files changed, 66 insertions(+), 2 deletions(-) (limited to 'src/mainboard') diff --git a/src/mainboard/google/trogdor/board.h b/src/mainboard/google/trogdor/board.h index bd7222fefa..39661b5f21 100644 --- a/src/mainboard/google/trogdor/board.h +++ b/src/mainboard/google/trogdor/board.h @@ -13,6 +13,11 @@ #define GPIO_SD_CD_L GPIO(69) #define GPIO_AMP_ENABLE GPIO(23) +/* Display specific GPIOS */ +#define GPIO_BACKLIGHT_ENABLE GPIO(12) +#define GPIO_EDP_BRIDGE_ENABLE (CONFIG(TROGDOR_REV0) ? GPIO(14) : GPIO(104)) +#define GPIO_EN_PP3300_DX_EDP (CONFIG(TROGDOR_REV0) ? GPIO(106) : GPIO(30)) + void setup_chromeos_gpios(void); #endif /* _COREBOOT_SRC_MAINBOARD_GOOGLE_TROGDOR_BOARD_H_ */ diff --git a/src/mainboard/google/trogdor/mainboard.c b/src/mainboard/google/trogdor/mainboard.c index 349c3064c3..57f3a3ba0f 100644 --- a/src/mainboard/google/trogdor/mainboard.c +++ b/src/mainboard/google/trogdor/mainboard.c @@ -1,9 +1,21 @@ /* SPDX-License-Identifier: GPL-2.0-only */ +#include +#include #include +#include +#include +#include +#include #include +#include #include +#include "board.h" + +#define BRIDGE_BUS 0x2 +#define BRIDGE_CHIP 0x2d + static struct usb_board_data usb0_board_data = { .pll_bias_control_2 = 0x22, .imp_ctrl1 = 0x08, @@ -20,7 +32,6 @@ static void setup_usb(void) static void qi2s_configure_gpios(void) { - gpio_configure(GPIO(49), GPIO49_FUNC_MI2S_1_SCK, GPIO_NO_PULL, GPIO_8MA, GPIO_OUTPUT); @@ -34,7 +45,6 @@ static void qi2s_configure_gpios(void) static void load_qup_fw(void) { qupv3_se_fw_load_and_init(QUPV3_0_SE1, SE_PROTOCOL_SPI, MIXED); /* ESIM SPI */ - qupv3_se_fw_load_and_init(QUPV3_0_SE2, SE_PROTOCOL_I2C, MIXED); /* EDP Bridge I2C */ qupv3_se_fw_load_and_init(QUPV3_0_SE3, SE_PROTOCOL_UART, FIFO); /* BT UART */ qupv3_se_fw_load_and_init(QUPV3_0_SE4, SE_PROTOCOL_I2C, MIXED); /* Pen Detect I2C */ qupv3_se_fw_load_and_init(QUPV3_0_SE5, SE_PROTOCOL_I2C, MIXED); /* SAR I2C */ @@ -51,11 +61,60 @@ static void load_qup_fw(void) qupv3_se_fw_load_and_init(QUPV3_1_SE5, SE_PROTOCOL_I2C, MIXED); /* Codec I2C */ } +static void configure_display(void) +{ + printk(BIOS_INFO, "%s: Bridge gpio init\n", __func__); + + /* Bridge Enable GPIO */ + gpio_output(GPIO_EDP_BRIDGE_ENABLE, 1); + + /* PP3300 EDP power supply */ + gpio_output(GPIO_EN_PP3300_DX_EDP, 1); +} + +static void display_init(struct edid *edid) +{ + uint32_t dsi_bpp = 24; + uint32_t lanes = 4; + + if (mdss_dsi_config(edid, lanes, dsi_bpp)) + return; + + sn65dsi86_bridge_configure(BRIDGE_BUS, BRIDGE_CHIP, edid, lanes, dsi_bpp); + mdp_dsi_video_config(edid); + mdss_dsi_video_mode_config(edid, dsi_bpp); + mdp_dsi_video_on(); +} + +static void display_startup(void) +{ + static struct edid ed; + enum dp_pll_clk_src ref_clk = SN65_SEL_19MHZ; + + i2c_init(QUPV3_0_SE2, I2C_SPEED_FAST); /* EDP Bridge I2C */ + if (display_init_required()) { + configure_display(); + mdelay(250); /* Delay for the panel to be up */ + sn65dsi86_bridge_init(BRIDGE_BUS, BRIDGE_CHIP, ref_clk); + if (sn65dsi86_bridge_read_edid(BRIDGE_BUS, BRIDGE_CHIP, &ed) < 0) + return; + + printk(BIOS_INFO, "display init!\n"); + + /* Configure backlight */ + gpio_output(GPIO_BACKLIGHT_ENABLE, 1); + display_init(&ed); + set_vbe_mode_info_valid(&ed, (uintptr_t)0); + } else + printk(BIOS_INFO, "Skipping display init.\n"); +} + static void mainboard_init(struct device *dev) { setup_usb(); qi2s_configure_gpios(); load_qup_fw(); + display_startup(); } static void mainboard_enable(struct device *dev) -- cgit v1.2.3