mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 06:12:58 +00:00
300 lines
6.9 KiB
C
300 lines
6.9 KiB
C
/*
|
|
* Copyright (C) 2012 Samsung Electronics
|
|
*
|
|
* Author: InKi Dae <inki.dae@samsung.com>
|
|
* Author: Donghwa Lee <dh09.lee@samsung.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <lcd.h>
|
|
#include <fdtdec.h>
|
|
#include <libfdt.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/cpu.h>
|
|
#include <asm/arch/clock.h>
|
|
#include <asm/arch/clk.h>
|
|
#include <asm/arch/mipi_dsim.h>
|
|
#include <asm/arch/dp_info.h>
|
|
#include <asm/arch/system.h>
|
|
#include <asm-generic/errno.h>
|
|
|
|
#include "exynos_fb.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static unsigned int panel_width, panel_height;
|
|
|
|
#ifdef CONFIG_OF_CONTROL
|
|
vidinfo_t panel_info = {
|
|
/*
|
|
* Insert a value here so that we don't end up in the BSS
|
|
* Reference: drivers/video/tegra.c
|
|
*/
|
|
.vl_col = -1,
|
|
};
|
|
#endif
|
|
|
|
static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
|
|
{
|
|
unsigned long palette_size;
|
|
unsigned int fb_size;
|
|
|
|
fb_size = vid->vl_row * vid->vl_col * (NBITS(vid->vl_bpix) >> 3);
|
|
|
|
palette_size = NBITS(vid->vl_bpix) == 8 ? 256 : 16;
|
|
|
|
exynos_fimd_lcd_init_mem((unsigned long)lcdbase,
|
|
(unsigned long)fb_size, palette_size);
|
|
}
|
|
|
|
static void exynos_lcd_init(vidinfo_t *vid)
|
|
{
|
|
exynos_fimd_lcd_init(vid);
|
|
|
|
/* Enable flushing after LCD writes if requested */
|
|
lcd_set_flush_dcache(1);
|
|
}
|
|
|
|
__weak void exynos_cfg_lcd_gpio(void)
|
|
{
|
|
}
|
|
|
|
__weak void exynos_backlight_on(unsigned int onoff)
|
|
{
|
|
}
|
|
|
|
__weak void exynos_reset_lcd(void)
|
|
{
|
|
}
|
|
|
|
__weak void exynos_lcd_power_on(void)
|
|
{
|
|
}
|
|
|
|
__weak void exynos_cfg_ldo(void)
|
|
{
|
|
}
|
|
|
|
__weak void exynos_enable_ldo(unsigned int onoff)
|
|
{
|
|
}
|
|
|
|
__weak void exynos_backlight_reset(void)
|
|
{
|
|
}
|
|
|
|
__weak int exynos_lcd_misc_init(vidinfo_t *vid)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void lcd_panel_on(vidinfo_t *vid)
|
|
{
|
|
udelay(vid->init_delay);
|
|
|
|
exynos_backlight_reset();
|
|
|
|
exynos_cfg_lcd_gpio();
|
|
|
|
exynos_lcd_power_on();
|
|
|
|
udelay(vid->power_on_delay);
|
|
|
|
if (vid->dp_enabled)
|
|
exynos_init_dp();
|
|
|
|
exynos_reset_lcd();
|
|
|
|
udelay(vid->reset_delay);
|
|
|
|
exynos_backlight_on(1);
|
|
|
|
exynos_cfg_ldo();
|
|
|
|
exynos_enable_ldo(1);
|
|
|
|
if (vid->mipi_enabled)
|
|
exynos_mipi_dsi_init();
|
|
}
|
|
|
|
#ifdef CONFIG_OF_CONTROL
|
|
int exynos_lcd_early_init(const void *blob)
|
|
{
|
|
unsigned int node;
|
|
node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_FIMD);
|
|
if (node <= 0) {
|
|
debug("exynos_fb: Can't get device node for fimd\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
panel_info.vl_col = fdtdec_get_int(blob, node, "samsung,vl-col", 0);
|
|
if (panel_info.vl_col == 0) {
|
|
debug("Can't get XRES\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_row = fdtdec_get_int(blob, node, "samsung,vl-row", 0);
|
|
if (panel_info.vl_row == 0) {
|
|
debug("Can't get YRES\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_width = fdtdec_get_int(blob, node,
|
|
"samsung,vl-width", 0);
|
|
|
|
panel_info.vl_height = fdtdec_get_int(blob, node,
|
|
"samsung,vl-height", 0);
|
|
|
|
panel_info.vl_freq = fdtdec_get_int(blob, node, "samsung,vl-freq", 0);
|
|
if (panel_info.vl_freq == 0) {
|
|
debug("Can't get refresh rate\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
if (fdtdec_get_bool(blob, node, "samsung,vl-clkp"))
|
|
panel_info.vl_clkp = CONFIG_SYS_LOW;
|
|
|
|
if (fdtdec_get_bool(blob, node, "samsung,vl-oep"))
|
|
panel_info.vl_oep = CONFIG_SYS_LOW;
|
|
|
|
if (fdtdec_get_bool(blob, node, "samsung,vl-hsp"))
|
|
panel_info.vl_hsp = CONFIG_SYS_LOW;
|
|
|
|
if (fdtdec_get_bool(blob, node, "samsung,vl-vsp"))
|
|
panel_info.vl_vsp = CONFIG_SYS_LOW;
|
|
|
|
if (fdtdec_get_bool(blob, node, "samsung,vl-dp"))
|
|
panel_info.vl_dp = CONFIG_SYS_LOW;
|
|
|
|
panel_info.vl_bpix = fdtdec_get_int(blob, node, "samsung,vl-bpix", 0);
|
|
if (panel_info.vl_bpix == 0) {
|
|
debug("Can't get bits per pixel\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_hspw = fdtdec_get_int(blob, node, "samsung,vl-hspw", 0);
|
|
if (panel_info.vl_hspw == 0) {
|
|
debug("Can't get hsync width\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_hfpd = fdtdec_get_int(blob, node, "samsung,vl-hfpd", 0);
|
|
if (panel_info.vl_hfpd == 0) {
|
|
debug("Can't get right margin\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_hbpd = (u_char)fdtdec_get_int(blob, node,
|
|
"samsung,vl-hbpd", 0);
|
|
if (panel_info.vl_hbpd == 0) {
|
|
debug("Can't get left margin\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_vspw = (u_char)fdtdec_get_int(blob, node,
|
|
"samsung,vl-vspw", 0);
|
|
if (panel_info.vl_vspw == 0) {
|
|
debug("Can't get vsync width\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_vfpd = fdtdec_get_int(blob, node,
|
|
"samsung,vl-vfpd", 0);
|
|
if (panel_info.vl_vfpd == 0) {
|
|
debug("Can't get lower margin\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_vbpd = fdtdec_get_int(blob, node, "samsung,vl-vbpd", 0);
|
|
if (panel_info.vl_vbpd == 0) {
|
|
debug("Can't get upper margin\n");
|
|
return -ENXIO;
|
|
}
|
|
|
|
panel_info.vl_cmd_allow_len = fdtdec_get_int(blob, node,
|
|
"samsung,vl-cmd-allow-len", 0);
|
|
|
|
panel_info.win_id = fdtdec_get_int(blob, node, "samsung,winid", 0);
|
|
panel_info.init_delay = fdtdec_get_int(blob, node,
|
|
"samsung,init-delay", 0);
|
|
panel_info.power_on_delay = fdtdec_get_int(blob, node,
|
|
"samsung,power-on-delay", 0);
|
|
panel_info.reset_delay = fdtdec_get_int(blob, node,
|
|
"samsung,reset-delay", 0);
|
|
panel_info.interface_mode = fdtdec_get_int(blob, node,
|
|
"samsung,interface-mode", 0);
|
|
panel_info.mipi_enabled = fdtdec_get_int(blob, node,
|
|
"samsung,mipi-enabled", 0);
|
|
panel_info.dp_enabled = fdtdec_get_int(blob, node,
|
|
"samsung,dp-enabled", 0);
|
|
panel_info.cs_setup = fdtdec_get_int(blob, node,
|
|
"samsung,cs-setup", 0);
|
|
panel_info.wr_setup = fdtdec_get_int(blob, node,
|
|
"samsung,wr-setup", 0);
|
|
panel_info.wr_act = fdtdec_get_int(blob, node, "samsung,wr-act", 0);
|
|
panel_info.wr_hold = fdtdec_get_int(blob, node, "samsung,wr-hold", 0);
|
|
|
|
panel_info.logo_on = fdtdec_get_int(blob, node, "samsung,logo-on", 0);
|
|
if (panel_info.logo_on) {
|
|
panel_info.logo_width = fdtdec_get_int(blob, node,
|
|
"samsung,logo-width", 0);
|
|
panel_info.logo_height = fdtdec_get_int(blob, node,
|
|
"samsung,logo-height", 0);
|
|
panel_info.logo_addr = fdtdec_get_int(blob, node,
|
|
"samsung,logo-addr", 0);
|
|
}
|
|
|
|
panel_info.rgb_mode = fdtdec_get_int(blob, node,
|
|
"samsung,rgb-mode", 0);
|
|
panel_info.pclk_name = fdtdec_get_int(blob, node,
|
|
"samsung,pclk-name", 0);
|
|
panel_info.sclk_div = fdtdec_get_int(blob, node,
|
|
"samsung,sclk-div", 0);
|
|
panel_info.dual_lcd_enabled = fdtdec_get_int(blob, node,
|
|
"samsung,dual-lcd-enabled", 0);
|
|
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void lcd_ctrl_init(void *lcdbase)
|
|
{
|
|
set_system_display_ctrl();
|
|
set_lcd_clk();
|
|
|
|
#ifdef CONFIG_OF_CONTROL
|
|
#ifdef CONFIG_EXYNOS_MIPI_DSIM
|
|
exynos_init_dsim_platform_data(&panel_info);
|
|
#endif
|
|
exynos_lcd_misc_init(&panel_info);
|
|
#else
|
|
/* initialize parameters which is specific to panel. */
|
|
init_panel_info(&panel_info);
|
|
#endif
|
|
|
|
panel_width = panel_info.vl_width;
|
|
panel_height = panel_info.vl_height;
|
|
|
|
exynos_lcd_init_mem(lcdbase, &panel_info);
|
|
|
|
exynos_lcd_init(&panel_info);
|
|
}
|
|
|
|
void lcd_enable(void)
|
|
{
|
|
if (panel_info.logo_on) {
|
|
memset((void *) gd->fb_base, 0, panel_width * panel_height *
|
|
(NBITS(panel_info.vl_bpix) >> 3));
|
|
}
|
|
|
|
lcd_panel_on(&panel_info);
|
|
}
|
|
|
|
/* dummy function */
|
|
void lcd_setcolreg(ushort regno, ushort red, ushort green, ushort blue)
|
|
{
|
|
return;
|
|
}
|