From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH] ARM: rpi: add SD card environment support
Date: Tue, 15 Oct 2013 12:50:14 +0200 [thread overview]
Message-ID: <1381834214-12603-1-git-send-email-s.hauer@pengutronix.de> (raw)
Similar to the OMAP boards mount the SD card to /boot and expect
the environment as /boot/barebox.env
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/boards/raspberry-pi/rpi.c | 33 +++++++++++++++++++++++++++++++--
1 file changed, 31 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boards/raspberry-pi/rpi.c b/arch/arm/boards/raspberry-pi/rpi.c
index d4912cc..971a603 100644
--- a/arch/arm/boards/raspberry-pi/rpi.c
+++ b/arch/arm/boards/raspberry-pi/rpi.c
@@ -15,6 +15,9 @@
#include <common.h>
#include <init.h>
+#include <fs.h>
+#include <linux/stat.h>
+#include <envfs.h>
#include <asm/armlinux.h>
#include <generated/mach-types.h>
@@ -37,11 +40,37 @@ static int rpi_console_init(void)
}
console_initcall(rpi_console_init);
+static int rpi_env_init(void)
+{
+ struct stat s;
+ const char *diskdev = "/dev/disk0.0";
+ int ret;
+
+ device_detect_by_name("mci0");
+
+ ret = stat(diskdev, &s);
+ if (ret) {
+ printf("no %s. using default env\n", diskdev);
+ return 0;
+ }
+
+ mkdir("/boot", 0666);
+ ret = mount(diskdev, "fat", "/boot");
+ if (ret) {
+ printf("failed to mount %s\n", diskdev);
+ return 0;
+ }
+
+ default_environment_path = "/boot/barebox.env";
+
+ return 0;
+}
+
static int rpi_devices_init(void)
{
armlinux_set_architecture(MACH_TYPE_BCM2708);
armlinux_set_bootparams((void *)(0x00000100));
+ rpi_env_init();
return 0;
}
-
-device_initcall(rpi_devices_init);
+late_initcall(rpi_devices_init);
--
1.8.4.rc3
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next reply other threads:[~2013-10-15 10:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-15 10:50 Sascha Hauer [this message]
2013-10-15 11:36 ` Jean-Christophe PLAGNIOL-VILLARD
2013-10-16 7:44 ` Sascha Hauer
2013-10-15 11:54 ` Andre Heider
2013-10-15 12:53 ` Sascha Hauer
2013-10-15 16:22 ` Andre Heider
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