[U-Boot] [PATCH V2 2/2] ARM: bcm2835: add simplefb DT node during bootz/m
Stephen Warren
swarren at wwwdotorg.org
Tue May 14 04:33:58 CEST 2013
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 at wwwdotorg.org>
Acked-by: Simon Glass <sjg at 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
--
1.7.10.4
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