diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/fdt_support.c | 62 | ||||
| -rw-r--r-- | common/lcd.c | 47 |
2 files changed, 67 insertions, 42 deletions
diff --git a/common/fdt_support.c b/common/fdt_support.c index ce32fe7..ea42c63 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -1499,3 +1499,65 @@ int fdt_read_range(void *fdt, int node, int n, uint64_t *child_addr, return 0; } + +/** + * fdt_setup_simplefb_node - Fill and enable a simplefb node + * + * @fdt: ptr to device tree + * @node: offset of the simplefb node + * @base_address: framebuffer base address + * @width: width in pixels + * @height: height in pixels + * @stride: bytes per line + * @format: pixel format string + * + * Convenience function to fill and enable a simplefb node. + */ +int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width, + u32 height, u32 stride, const char *format) +{ + char name[32]; + fdt32_t cells[4]; + int i, addrc, sizec, ret; + + of_bus_default_count_cells(fdt, fdt_parent_offset(fdt, node), + &addrc, &sizec); + i = 0; + if (addrc == 2) + cells[i++] = cpu_to_fdt32(base_address >> 32); + cells[i++] = cpu_to_fdt32(base_address); + if (sizec == 2) + cells[i++] = 0; + cells[i++] = cpu_to_fdt32(height * stride); + + ret = fdt_setprop(fdt, node, "reg", cells, sizeof(cells[0]) * i); + if (ret < 0) + return ret; + + snprintf(name, sizeof(name), "framebuffer@%llx", base_address); + ret = fdt_set_name(fdt, node, name); + if (ret < 0) + return ret; + + ret = fdt_setprop_u32(fdt, node, "width", width); + if (ret < 0) + return ret; + + ret = fdt_setprop_u32(fdt, node, "height", height); + if (ret < 0) + return ret; + + ret = fdt_setprop_u32(fdt, node, "stride", stride); + if (ret < 0) + return ret; + + ret = fdt_setprop_string(fdt, node, "format", format); + if (ret < 0) + return ret; + + ret = fdt_setprop_string(fdt, node, "status", "okay"); + if (ret < 0) + return ret; + + return 0; +} diff --git a/common/lcd.c b/common/lcd.c index d8e1371..28b3fe7 100644 --- a/common/lcd.c +++ b/common/lcd.c @@ -30,6 +30,7 @@ #include <splash.h> #include <asm/io.h> #include <asm/unaligned.h> +#include <fdt_support.h> #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ defined(CONFIG_CPU_MONAHANS) @@ -1172,51 +1173,13 @@ int lcd_get_screen_columns(void) #if defined(CONFIG_LCD_DT_SIMPLEFB) static int lcd_dt_simplefb_configure_node(void *blob, int off) { - u32 stride; - fdt32_t cells[2]; - int ret; - static const char format[] = #if LCD_BPP == LCD_COLOR16 - "r5g6b5"; + return fdt_setup_simplefb_node(blob, off, gd->fb_base, + panel_info.vl_col, panel_info.vl_row, + panel_info.vl_col * 2, "r5g6b5"); #else - ""; + return -1; #endif - - if (!format[0]) - return -1; - - stride = panel_info.vl_col * 2; - - cells[0] = cpu_to_fdt32(gd->fb_base); - cells[1] = cpu_to_fdt32(stride * panel_info.vl_row); - ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2); - if (ret < 0) - return -1; - - cells[0] = cpu_to_fdt32(panel_info.vl_col); - ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0])); - if (ret < 0) - return -1; - - cells[0] = cpu_to_fdt32(panel_info.vl_row); - ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0])); - if (ret < 0) - return -1; - - cells[0] = cpu_to_fdt32(stride); - ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0])); - if (ret < 0) - return -1; - - ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1); - if (ret < 0) - return -1; - - ret = fdt_delprop(blob, off, "status"); - if (ret < 0) - return -1; - - return 0; } int lcd_dt_simplefb_add_node(void *blob) |