#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/mipi_dsim.h>
#include <asm/arch/dp_info.h>
#include <asm/arch/system.h>
+#include <asm-generic/errno.h>
#include "exynos_fb.h"
static unsigned int panel_width, panel_height;
+/*
+ * board_init_f(arch/arm/lib/board.c) calls lcd_setmem() which needs
+ * panel_info.vl_col, panel_info.vl_row and panel_info.vl_bpix to reserve
+ * FB memory at a very early stage, i.e even before exynos_fimd_parse_dt()
+ * is called. So, we are forced to statically assign it.
+ */
+#ifdef CONFIG_OF_CONTROL
+vidinfo_t panel_info = {
+ .vl_col = LCD_XRES,
+ .vl_row = LCD_YRES,
+ .vl_bpix = LCD_COLOR16,
+};
+#endif
+
static void exynos_lcd_init_mem(void *lcdbase, vidinfo_t *vid)
{
unsigned long palette_size;
}
#endif
+void __exynos_cfg_lcd_gpio(void)
+{
+}
+void exynos_cfg_lcd_gpio(void)
+ __attribute__((weak, alias("__exynos_cfg_lcd_gpio")));
+
+void __exynos_backlight_on(unsigned int onoff)
+{
+}
+void exynos_backlight_on(unsigned int onoff)
+ __attribute__((weak, alias("__exynos_cfg_lcd_gpio")));
+
+void __exynos_reset_lcd(void)
+{
+}
+void exynos_reset_lcd(void)
+ __attribute__((weak, alias("__exynos_reset_lcd")));
+
+void __exynos_lcd_power_on(void)
+{
+}
+void exynos_lcd_power_on(void)
+ __attribute__((weak, alias("__exynos_lcd_power_on")));
+
+void __exynos_cfg_ldo(void)
+{
+}
+void exynos_cfg_ldo(void)
+ __attribute__((weak, alias("__exynos_cfg_ldo")));
+
+void __exynos_enable_ldo(unsigned int onoff)
+{
+}
+void exynos_enable_ldo(unsigned int onoff)
+ __attribute__((weak, alias("__exynos_enable_ldo")));
+
+void __exynos_backlight_reset(void)
+{
+}
+void exynos_backlight_reset(void)
+ __attribute__((weak, alias("__exynos_backlight_reset")));
+
static void lcd_panel_on(vidinfo_t *vid)
{
udelay(vid->init_delay);
- if (vid->backlight_reset)
- vid->backlight_reset();
+ exynos_backlight_reset();
- if (vid->cfg_gpio)
- vid->cfg_gpio();
+ exynos_cfg_lcd_gpio();
- if (vid->lcd_power_on)
- vid->lcd_power_on();
+ exynos_lcd_power_on();
udelay(vid->power_on_delay);
if (vid->dp_enabled)
exynos_init_dp();
- if (vid->reset_lcd) {
- vid->reset_lcd();
- udelay(vid->reset_delay);
- }
+ exynos_reset_lcd();
+
+ udelay(vid->reset_delay);
- if (vid->backlight_on)
- vid->backlight_on(1);
+ exynos_backlight_on(1);
- if (vid->cfg_ldo)
- vid->cfg_ldo();
+ exynos_cfg_ldo();
- if (vid->enable_ldo)
- vid->enable_ldo(1);
+ exynos_enable_ldo(1);
if (vid->mipi_enabled)
exynos_mipi_dsi_init();
}
+#ifdef CONFIG_OF_CONTROL
+int exynos_fimd_parse_dt(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
+ if (exynos_fimd_parse_dt(gd->fdt_blob))
+ debug("Can't get proper panel info\n");
+#endif
/* initialize parameters which is specific to panel. */
init_panel_info(&panel_info);
projects / karo-tx-uboot.git / blobdiff