OMAP: networking support for SPL

This patch adds support for networking in SPL. Some devices are
capable of loading SPL via network so it makes sense to load the
main U-Boot binary via network too. This patch tries to use
existing network code as much as possible. Unfortunately, it depends
on environment which in turn depends on other code so SPL size
is increased significantly. No effort was done to decouple network
code and environment so far.

Signed-off-by: Ilya Yanok <ilya.yanok@cogentembedded.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Tom Rini <trini@ti.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/common/spl/spl_net.c b/common/spl/spl_net.c
new file mode 100644
index 0000000..e1596fe
--- /dev/null
+++ b/common/spl/spl_net.c
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2012
+ * Ilya Yanok <ilya.yanok@gmail.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+#include <common.h>
+#include <spl.h>
+#include <net.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void spl_net_load_image(const char *device)
+{
+	int rv;
+
+	env_init();
+	env_relocate();
+	setenv("autoload", "yes");
+	load_addr = CONFIG_SYS_TEXT_BASE - sizeof(struct image_header);
+	rv = eth_initialize(gd->bd);
+	if (rv == 0) {
+		printf("No Ethernet devices found\n");
+		hang();
+	}
+	if (device)
+		setenv("ethact", device);
+	rv = NetLoop(BOOTP);
+	if (rv < 0) {
+		printf("Problem booting with BOOTP\n");
+		hang();
+	}
+	spl_parse_image_header((struct image_header *)load_addr);
+}