Add a DT simple-framebuffer node to DT when booting the Linux kernel. This will allow the kernel to inherit the framebuffer configuration from U-Boot, and display a graphical boot console, and even run a full SW- rendered X server.
Signed-off-by: Stephen Warren swarren@wwwdotorg.org Acked-by: Simon Glass sjg@chromium.org --- board/raspberrypi/rpi_b/rpi_b.c | 14 +++++++++++++- include/configs/rpi_b.h | 2 ++ 2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/board/raspberrypi/rpi_b/rpi_b.c b/board/raspberrypi/rpi_b/rpi_b.c index 6b3e095..16d442a 100644 --- a/board/raspberrypi/rpi_b/rpi_b.c +++ b/board/raspberrypi/rpi_b/rpi_b.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2012 Stephen Warren + * (C) Copyright 2012-2013 Stephen Warren * * See file CREDITS for list of people who contributed to this * project. @@ -15,6 +15,8 @@ */
#include <common.h> +#include <config.h> +#include <lcd.h> #include <asm/arch/mbox.h> #include <asm/arch/sdhci.h> #include <asm/global_data.h> @@ -77,3 +79,13 @@ int board_mmc_init(void) return bcm2835_sdhci_init(BCM2835_SDHCI_BASE, msg_clk->get_clock_rate.body.resp.rate_hz); } + +void ft_board_setup(void *blob, bd_t *bd) +{ + /* + * For now, we simply always add the simplefb DT node. Later, we + * should be more intelligent, and e.g. only do this if no enabled DT + * node exists for the "real" graphics driver. + */ + lcd_dt_simplefb_add_node(blob); +} diff --git a/include/configs/rpi_b.h b/include/configs/rpi_b.h index c18b35b..216c6cb 100644 --- a/include/configs/rpi_b.h +++ b/include/configs/rpi_b.h @@ -61,6 +61,7 @@ #define CONFIG_BCM2835_GPIO /* LCD */ #define CONFIG_LCD +#define CONFIG_LCD_DT_SIMPLEFB #define LCD_BPP LCD_COLOR16 /* * Prevent allocation of RAM for FB; the real FB address is queried @@ -175,6 +176,7 @@
/* Device tree support for bootm/bootz */ #define CONFIG_OF_LIBFDT +#define CONFIG_OF_BOARD_SETUP /* ATAGs support for bootm/bootz */ #define CONFIG_SETUP_MEMORY_TAGS #define CONFIG_CMDLINE_TAG