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/arch/arm/include/asm/arch-am33xx/spl.h b/arch/arm/include/asm/arch-am33xx/spl.h
index 70f521d..dc83882 100644
--- a/arch/arm/include/asm/arch-am33xx/spl.h
+++ b/arch/arm/include/asm/arch-am33xx/spl.h
@@ -27,5 +27,6 @@
#define BOOT_DEVICE_MMC1 8
#define BOOT_DEVICE_MMC2 9 /* eMMC or daughter card */
#define BOOT_DEVICE_UART 65
+#define BOOT_DEVICE_CPGMAC 70
#define BOOT_DEVICE_MMC2_2 0xFF
#endif
diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
index 99f833f..4954475 100644
--- a/board/ti/beagle/beagle.c
+++ b/board/ti/beagle/beagle.c
@@ -488,7 +488,7 @@
}
#endif
-#ifdef CONFIG_USB_EHCI
+#if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD)
/* Call usb_stop() before starting the kernel */
void show_boot_progress(int val)
{
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);
+}
diff --git a/include/bootstage.h b/include/bootstage.h
index a000538..db94a95 100644
--- a/include/bootstage.h
+++ b/include/bootstage.h
@@ -210,6 +210,7 @@
*/
ulong timer_get_boot_us(void);
+#ifndef CONFIG_SPL_BUILD
/*
* Board code can implement show_boot_progress() if needed.
*
@@ -217,8 +218,11 @@
* has occurred.
*/
void show_boot_progress(int val);
+#else
+#define show_boot_progress(val) do {} while (0)
+#endif
-#ifdef CONFIG_BOOTSTAGE
+#if defined(CONFIG_BOOTSTAGE) && !defined(CONFIG_SPL_BUILD)
/* This is the full bootstage implementation */
/*
diff --git a/include/config_uncmd_spl.h b/include/config_uncmd_spl.h
new file mode 100644
index 0000000..bab3ddf
--- /dev/null
+++ b/include/config_uncmd_spl.h
@@ -0,0 +1,44 @@
+/*
+ * (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.
+ *
+ * We don't use any commands in SPL, but generic networking code
+ * has some features enabled/disabled based on CONFIG_CMD_*
+ * options. As we want a minimal set of features included
+ * into network SPL image, we undefine some config options here.
+ */
+
+#ifndef __CONFIG_UNCMD_SPL_H__
+#define __CONFIG_UNCMD_SPL_H__
+
+#ifdef CONFIG_SPL_BUILD
+/* SPL needs only BOOTP + TFTP so undefine other stuff to save space */
+#undef CONFIG_CMD_CDP
+#undef CONFIG_CMD_DHCP
+#undef CONFIG_CMD_DNS
+#undef CONFIG_CMD_LINK_LOCAL
+#undef CONFIG_CMD_NFS
+#undef CONFIG_CMD_PING
+#undef CONFIG_CMD_RARP
+#undef CONFIG_CMD_SNTP
+#undef CONFIG_CMD_TFTPPUT
+#undef CONFIG_CMD_TFTPSRV
+#endif /* CONFIG_SPL_BUILD */
+#endif /* __CONFIG_UNCMD_SPL_H__ */
diff --git a/include/spl.h b/include/spl.h
index af94a82..b02f36f 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -71,6 +71,9 @@
/* SPI SPL functions */
void spl_spi_load_image(void);
+/* Ethernet SPL functions */
+void spl_net_load_image(const char *device);
+
#ifdef CONFIG_SPL_BOARD_INIT
void spl_board_init(void);
#endif
diff --git a/lib/Makefile b/lib/Makefile
index 45798de..a099885 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -53,12 +53,17 @@
COBJS-$(CONFIG_SHA256) += sha256.o
COBJS-y += strmhz.o
COBJS-$(CONFIG_RBTREE) += rbtree.o
-else
-COBJS-$(CONFIG_SPL_SPI_FLASH_SUPPORT) += display_options.o
endif
ifdef CONFIG_SPL_BUILD
COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += crc32.o
+ifneq ($(CONFIG_SPL_SPI_FLASH_SUPPORT)$(CONFIG_SPL_NET_SUPPORT),)
+COBJS-y += display_options.o
+endif
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += errno.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += hashtable.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += net_utils.o
endif
COBJS-y += crc32.o
COBJS-y += ctype.o
diff --git a/lib/hashtable.c b/lib/hashtable.c
index 670a704..94a7b61 100644
--- a/lib/hashtable.c
+++ b/lib/hashtable.c
@@ -435,6 +435,7 @@
* hexport()
*/
+#ifndef CONFIG_SPL_BUILD
/*
* Export the data stored in the hash table in linearized form.
*
@@ -601,6 +602,7 @@
return size;
}
+#endif
/*
diff --git a/mkconfig b/mkconfig
index d3363c6..7c9aa74 100755
--- a/mkconfig
+++ b/mkconfig
@@ -185,6 +185,7 @@
#include <configs/${CONFIG_NAME}.h>
#include <asm/config.h>
#include <config_fallbacks.h>
+#include <config_uncmd_spl.h>
EOF
exit 0
diff --git a/net/bootp.c b/net/bootp.c
index ccf9ee6..cd5c5dd 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -535,9 +535,14 @@
*e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
#endif
-#ifdef CONFIG_BOOTP_VCI_STRING
+#if defined(CONFIG_BOOTP_VCI_STRING) || \
+ (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING))
+#ifdef CONFIG_SPL_BUILD
+ put_vci(e, CONFIG_SPL_NET_VCI_STRING);
+#else
put_vci(e, CONFIG_BOOTP_VCI_STRING);
#endif
+#endif
#if defined(CONFIG_BOOTP_SUBNETMASK)
*e++ = 1; /* Subnet mask request */
diff --git a/spl/Makefile b/spl/Makefile
index d9b1c2f..e9d0ec4 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -57,6 +57,9 @@
LIBS-$(CONFIG_SPL_ONENAND_SUPPORT) += drivers/mtd/onenand/libonenand.o
LIBS-$(CONFIG_SPL_DMA_SUPPORT) += drivers/dma/libdma.o
LIBS-$(CONFIG_SPL_POST_MEM_SUPPORT) += post/drivers/memory.o
+LIBS-$(CONFIG_SPL_NET_SUPPORT) += net/libnet.o
+LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/libnet.o
+LIBS-$(CONFIG_SPL_ETH_SUPPORT) += drivers/net/phy/libphy.o
ifneq ($(CONFIG_AM33XX)$(CONFIG_OMAP34XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX),)
LIBS-y += $(CPUDIR)/omap-common/libomap-common.o