#include <nand.h>
#include <net.h>
#include <linux/mtd/nand.h>
+#include <linux/fb.h>
#include <asm/gpio.h>
#include <asm/cache.h>
#include <asm/omap_common.h>
.cmap = tx48_cmap,
};
-static struct da8xx_panel tx48_lcd_panel = {
- .name = "640x480MR@60",
- .width = 640,
- .height = 480,
- .hfp = 12,
- .hbp = 144,
- .hsw = 30,
- .vfp = 10,
- .vbp = 35,
- .vsw = 3,
- .pxl_clk = 25000000,
- .invert_pxl_clk = 1,
+#define FB_SYNC_OE_LOW_ACT (1 << 31)
+#define FB_SYNC_CLK_LAT_FALL (1 << 30)
+
+static struct fb_videomode tx48_fb_modes[] = {
+ {
+ /* Standard VGA timing */
+ .name = "VGA",
+ .refresh = 60,
+ .xres = 640,
+ .yres = 480,
+ .pixclock = KHZ2PICOS(25175),
+ .left_margin = 48,
+ .hsync_len = 96,
+ .right_margin = 16,
+ .upper_margin = 31,
+ .vsync_len = 2,
+ .lower_margin = 12,
+ .sync = FB_SYNC_CLK_LAT_FALL,
+ },
+ {
+ /* Emerging ETV570 640 x 480 display. Syncs low active,
+ * DE high active, 115.2 mm x 86.4 mm display area
+ * VGA compatible timing
+ */
+ .name = "ETV570",
+ .refresh = 60,
+ .xres = 640,
+ .yres = 480,
+ .pixclock = KHZ2PICOS(25175),
+ .left_margin = 114,
+ .hsync_len = 30,
+ .right_margin = 16,
+ .upper_margin = 32,
+ .vsync_len = 3,
+ .lower_margin = 10,
+ .sync = FB_SYNC_CLK_LAT_FALL,
+ },
+ {
+ /* Emerging ET0350G0DH6 320 x 240 display.
+ * 70.08 mm x 52.56 mm display area.
+ */
+ .name = "ET0350",
+ .refresh = 60,
+ .xres = 320,
+ .yres = 240,
+ .pixclock = KHZ2PICOS(6500),
+ .left_margin = 68 - 34,
+ .hsync_len = 34,
+ .right_margin = 20,
+ .upper_margin = 18 - 3,
+ .vsync_len = 3,
+ .lower_margin = 4,
+ .sync = FB_SYNC_CLK_LAT_FALL,
+ },
+ {
+ /* Emerging ET0430G0DH6 480 x 272 display.
+ * 95.04 mm x 53.856 mm display area.
+ */
+ .name = "ET0430",
+ .refresh = 60,
+ .xres = 480,
+ .yres = 272,
+ .pixclock = KHZ2PICOS(9000),
+ .left_margin = 2,
+ .hsync_len = 41,
+ .right_margin = 2,
+ .upper_margin = 2,
+ .vsync_len = 10,
+ .lower_margin = 2,
+ },
+ {
+ /* Emerging ET0500G0DH6 800 x 480 display.
+ * 109.6 mm x 66.4 mm display area.
+ */
+ .name = "ET0500",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = KHZ2PICOS(33260),
+ .left_margin = 216 - 128,
+ .hsync_len = 128,
+ .right_margin = 1056 - 800 - 216,
+ .upper_margin = 35 - 2,
+ .vsync_len = 2,
+ .lower_margin = 525 - 480 - 35,
+ .sync = FB_SYNC_CLK_LAT_FALL,
+ },
+ {
+ /* Emerging ETQ570G0DH6 320 x 240 display.
+ * 115.2 mm x 86.4 mm display area.
+ */
+ .name = "ETQ570",
+ .refresh = 60,
+ .xres = 320,
+ .yres = 240,
+ .pixclock = KHZ2PICOS(6400),
+ .left_margin = 38,
+ .hsync_len = 30,
+ .right_margin = 30,
+ .upper_margin = 16, /* 15 according to datasheet */
+ .vsync_len = 3, /* TVP -> 1>x>5 */
+ .lower_margin = 4, /* 4.5 according to datasheet */
+ .sync = FB_SYNC_CLK_LAT_FALL,
+ },
+ {
+ /* Emerging ET0700G0DH6 800 x 480 display.
+ * 152.4 mm x 91.44 mm display area.
+ */
+ .name = "ET0700",
+ .refresh = 60,
+ .xres = 800,
+ .yres = 480,
+ .pixclock = KHZ2PICOS(33260),
+ .left_margin = 216 - 128,
+ .hsync_len = 128,
+ .right_margin = 1056 - 800 - 216,
+ .upper_margin = 35 - 2,
+ .vsync_len = 2,
+ .lower_margin = 525 - 480 - 35,
+ .sync = FB_SYNC_CLK_LAT_FALL,
+ },
+ {
+ /* unnamed entry for assigning parameters parsed from 'video_mode' string */
+ .refresh = 60,
+ .left_margin = 48,
+ .hsync_len = 96,
+ .right_margin = 16,
+ .upper_margin = 31,
+ .vsync_len = 2,
+ .lower_margin = 12,
+ .sync = FB_SYNC_CLK_LAT_FALL,
+ },
};
void *lcd_base; /* Start of framebuffer memory */
if (lcd_enabled) {
karo_load_splashimage(1);
+ debug("Switching LCD on\n");
gpio_set_value(TX48_LCD_PWR_GPIO, 1);
+ udelay(100);
gpio_set_value(TX48_LCD_RST_GPIO, 1);
udelay(300000);
gpio_set_value(TX48_LCD_BACKLIGHT_GPIO, 0);
void lcd_disable(void)
{
if (lcd_enabled) {
+ printf("Disabling LCD\n");
da8xx_fb_disable();
lcd_enabled = 0;
}
}
+static void tx48_lcd_panel_setup(struct da8xx_panel *p,
+ struct fb_videomode *fb)
+{
+ p->pxl_clk = PICOS2KHZ(fb->pixclock) * 1000;
+
+ p->width = fb->xres;
+ p->hbp = fb->left_margin;
+ p->hsw = fb->hsync_len;
+ p->hfp = fb->right_margin;
+
+ p->height = fb->yres;
+ p->vbp = fb->upper_margin;
+ p->vsw = fb->vsync_len;
+ p->vfp = fb->lower_margin;
+
+ p->invert_pxl_clk = !!(fb->sync & FB_SYNC_CLK_LAT_FALL);
+}
+
void lcd_panel_disable(void)
{
if (lcd_enabled) {
+ debug("Switching LCD off\n");
gpio_set_value(TX48_LCD_BACKLIGHT_GPIO, 1);
gpio_set_value(TX48_LCD_PWR_GPIO, 0);
gpio_set_value(TX48_LCD_RST_GPIO, 0);
int color_depth = 24;
char *vm, *v;
unsigned long val;
- struct da8xx_panel *p = &tx48_lcd_panel;
int refresh = 60;
+ struct fb_videomode *p = &tx48_fb_modes[0];
+ struct fb_videomode fb_mode;
+ int xres_set = 0, yres_set = 0, bpp_set = 0, refresh_set = 0;
if (!lcd_enabled) {
- printf("LCD disabled\n");
+ debug("LCD disabled\n");
return;
}
if (tstc() || (prm_rstst & PRM_RSTST_WDT1_RST)) {
+ debug("Disabling LCD\n");
lcd_enabled = 0;
+ setenv("splashimage", NULL);
return;
}
+ karo_fdt_move_fdt();
+
vm = getenv("video_mode");
if (vm == NULL) {
+ debug("Disabling LCD\n");
lcd_enabled = 0;
return;
}
if ((v = strstr(vm, ":")))
vm = v + 1;
- strncpy((char *)p->name, vm, sizeof(p->name));
-
- val = simple_strtoul(vm, &vm, 10);
- if (val != 0) {
- if (val > panel_info.vl_col)
- val = panel_info.vl_col;
- p->width = val;
- panel_info.vl_col = val;
+ if (karo_fdt_get_fb_mode(working_fdt, vm, &fb_mode) == 0) {
+ p = &fb_mode;
+ debug("Using video mode from FDT\n");
+ vm += strlen(vm);
+ if (fb_mode.xres > panel_info.vl_col ||
+ fb_mode.yres > panel_info.vl_row) {
+ printf("video resolution from DT: %dx%d exceeds hardware limits: %dx%d\n",
+ fb_mode.xres, fb_mode.yres,
+ panel_info.vl_col, panel_info.vl_row);
+ lcd_enabled = 0;
+ return;
+ }
}
- if (*vm == 'x') {
- val = simple_strtoul(vm + 1, &vm, 10);
- if (val > panel_info.vl_row)
- val = panel_info.vl_row;
- p->height = val;
- panel_info.vl_row = val;
+ if (p->name != NULL)
+ debug("Trying compiled-in video modes\n");
+ while (p->name != NULL) {
+ if (strcmp(p->name, vm) == 0) {
+ debug("Using video mode: '%s'\n", p->name);
+ vm += strlen(vm);
+ break;
+ }
+ p++;
}
+ if (*vm != '\0')
+ debug("Trying to decode video_mode: '%s'\n", vm);
while (*vm != '\0') {
+ if (*vm >= '0' && *vm <= '9') {
+ char *end;
+
+ val = simple_strtoul(vm, &end, 0);
+ if (end > vm) {
+ if (!xres_set) {
+ if (val > panel_info.vl_col)
+ val = panel_info.vl_col;
+ p->xres = val;
+ panel_info.vl_col = val;
+ xres_set = 1;
+ } else if (!yres_set) {
+ if (val > panel_info.vl_row)
+ val = panel_info.vl_row;
+ p->yres = val;
+ panel_info.vl_row = val;
+ yres_set = 1;
+ } else if (!bpp_set) {
+ switch (val) {
+ case 24:
+ case 16:
+ case 8:
+ color_depth = val;
+ break;
+
+ default:
+ printf("Invalid color depth: '%.*s' in video_mode; using default: '%u'\n",
+ end - vm, vm, color_depth);
+ }
+ bpp_set = 1;
+ } else if (!refresh_set) {
+ refresh = val;
+ refresh_set = 1;
+ }
+ }
+ vm = end;
+ }
switch (*vm) {
+ case '@':
+ bpp_set = 1;
+ /* fallthru */
+ case '-':
+ yres_set = 1;
+ /* fallthru */
+ case 'x':
+ xres_set = 1;
+ /* fallthru */
case 'M':
case 'R':
vm++;
break;
- case '-':
- color_depth = simple_strtoul(vm + 1, &vm, 10);
- break;
-
- case '@':
- refresh = simple_strtoul(vm + 1, &vm, 10);
- break;
-
default:
- debug("Ignoring '%c'\n", *vm);
- vm++;
+ if (*vm != '\0')
+ vm++;
+ }
+ }
+ if (p->xres == 0 || p->yres == 0) {
+ printf("Invalid video mode: %s\n", getenv("video_mode"));
+ lcd_enabled = 0;
+ printf("Supported video modes are:");
+ for (p = &tx48_fb_modes[0]; p->name != NULL; p++) {
+ printf(" %s", p->name);
}
+ printf("\n");
+ return;
}
+ if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
+ printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
+ p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
+ lcd_enabled = 0;
+ return;
+ }
+ panel_info.vl_col = p->xres;
+ panel_info.vl_row = p->yres;
+
switch (color_depth) {
case 8:
- panel_info.vl_bpix = 3;
+ panel_info.vl_bpix = LCD_COLOR8;
break;
-
case 16:
- panel_info.vl_bpix = 4;
+ panel_info.vl_bpix = LCD_COLOR16;
break;
-
- case 24:
- panel_info.vl_bpix = 5;
- break;
-
default:
- printf("Invalid color_depth %u from video_mode '%s'; using default: %u\n",
- color_depth, getenv("video_mode"), 24);
+ panel_info.vl_bpix = LCD_COLOR24;
+ }
+
+ p->pixclock = KHZ2PICOS(refresh *
+ (p->xres + p->left_margin + p->right_margin + p->hsync_len) *
+ (p->yres + p->upper_margin + p->lower_margin + p->vsync_len)
+ / 1000);
+ debug("Pixel clock set to %lu.%03lu MHz\n",
+ PICOS2KHZ(p->pixclock) / 1000,
+ PICOS2KHZ(p->pixclock) % 1000);
+
+ if (p != &fb_mode) {
+ int ret;
+ char *modename = getenv("video_mode");
+
+ printf("Creating new display-timing node from '%s'\n",
+ modename);
+ ret = karo_fdt_create_fb_mode(working_fdt, modename, p);
+ if (ret)
+ printf("Failed to create new display-timing node from '%s': %d\n",
+ modename, ret);
}
- lcd_line_length = NBITS(panel_info.vl_bpix) / 8 * panel_info.vl_col;
- p->pxl_clk = refresh *
- (p->width + p->hfp + p->hbp + p->hsw) *
- (p->height + p->vfp + p->vbp + p->vsw);
- debug("Pixel clock set to %u.%03uMHz\n",
- p->pxl_clk / 1000000, p->pxl_clk / 1000 % 1000);
gpio_request_array(stk5_lcd_gpios, ARRAY_SIZE(stk5_lcd_gpios));
tx48_set_pin_mux(stk5_lcd_pads, ARRAY_SIZE(stk5_lcd_pads));
- debug("Initializing FB driver\n");
- da8xx_video_init(&tx48_lcd_panel, color_depth);
if (karo_load_splashimage(0) == 0) {
+ struct da8xx_panel da8xx_panel = { };
+
+ debug("Initializing FB driver\n");
+ tx48_lcd_panel_setup(&da8xx_panel, p);
+ da8xx_video_init(&da8xx_panel, color_depth);
+
debug("Initializing LCD controller\n");
video_hw_init();
} else {
projects / karo-tx-uboot.git / commitdiff