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>
diff --git a/common/Makefile b/common/Makefile
index 125b2be..5442fbb 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -198,6 +198,10 @@
ifdef CONFIG_SPL_BUILD
COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += cmd_nvedit.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_common.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_nowhere.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += miiphyutil.o
endif
COBJS-y += console.o
COBJS-y += dlmalloc.o
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index 3474bc6..8ecc498 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -103,6 +103,7 @@
return env_id;
}
+#ifndef CONFIG_SPL_BUILD
/*
* Command interface: print one or all environment variables
*
@@ -196,6 +197,7 @@
return rcode;
}
#endif
+#endif /* CONFIG_SPL_BUILD */
/*
* Perform consistency checking before setting, replacing, or deleting an
@@ -437,6 +439,7 @@
return setenv(varname, str);
}
+#ifndef CONFIG_SPL_BUILD
int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
if (argc < 2)
@@ -536,6 +539,7 @@
return setenv(argv[1], buffer);
}
#endif /* CONFIG_CMD_EDITENV */
+#endif /* CONFIG_SPL_BUILD */
/*
* Look up variable from environment,
@@ -621,6 +625,7 @@
return str ? simple_strtoul(str, NULL, base) : default_val;
}
+#ifndef CONFIG_SPL_BUILD
#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
@@ -635,6 +640,7 @@
""
);
#endif
+#endif /* CONFIG_SPL_BUILD */
/*
@@ -656,6 +662,7 @@
return -1;
}
+#ifndef CONFIG_SPL_BUILD
static int do_env_default(cmd_tbl_t *cmdtp, int __flag,
int argc, char * const argv[])
{
@@ -1114,3 +1121,4 @@
var_complete
);
#endif
+#endif /* CONFIG_SPL_BUILD */
diff --git a/common/env_common.c b/common/env_common.c
index 3e46c26..57221ef 100644
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -231,6 +231,7 @@
nvars, vars, 1 /* do_apply */);
}
+#ifndef CONFIG_SPL_BUILD
/*
* Check if CRC is valid and (if yes) import the environment.
* Note that "buf" may or may not be aligned.
@@ -262,6 +263,7 @@
return 0;
}
+#endif
void env_relocate(void)
{
@@ -269,7 +271,8 @@
env_reloc();
#endif
if (gd->env_valid == 0) {
-#if defined(CONFIG_ENV_IS_NOWHERE) /* Environment not changable */
+#if defined(CONFIG_ENV_IS_NOWHERE) || defined(CONFIG_SPL_BUILD)
+ /* Environment not changable */
set_default_env(NULL);
#else
bootstage_error(BOOTSTAGE_ID_NET_CHECKSUM);
@@ -280,7 +283,7 @@
}
}
-#ifdef CONFIG_AUTO_COMPLETE
+#if defined(CONFIG_AUTO_COMPLETE) && !defined(CONFIG_SPL_BUILD)
int env_complete(char *var, int maxv, char *cmdv[], int bufsz, char *buf)
{
ENTRY *match;
diff --git a/common/spl/Makefile b/common/spl/Makefile
index 7cf01ad..5698a23 100644
--- a/common/spl/Makefile
+++ b/common/spl/Makefile
@@ -18,6 +18,7 @@
COBJS-$(CONFIG_SPL_NOR_SUPPORT) += spl_nor.o
COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += spl_ymodem.o
COBJS-$(CONFIG_SPL_NAND_SUPPORT) += spl_nand.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += spl_net.o
endif
COBJS := $(sort $(COBJS-y))
diff --git a/common/spl/spl.c b/common/spl/spl.c
index 29cbb93..40a7aca 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -196,6 +196,15 @@
spl_spi_load_image();
break;
#endif
+#ifdef CONFIG_SPL_ETH_SUPPORT
+ case BOOT_DEVICE_CPGMAC:
+#ifdef CONFIG_SPL_ETH_DEVICE
+ spl_net_load_image(CONFIG_SPL_ETH_DEVICE);
+#else
+ spl_net_load_image(NULL);
+#endif
+ break;
+#endif
default:
debug("SPL: Un-supported Boot Device\n");
hang();
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);
+}