diff mbox

[U-Boot,v3,7/8] OMAP: networking support for SPL

Message ID 1343168543-15500-8-git-send-email-ilya.yanok@cogentembedded.com
State Deferred
Delegated to: Tom Rini
Headers show

Commit Message

Ilya Yanok July 24, 2012, 10:22 p.m. UTC 
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>

---
Changes in v3:
 - add support for setting different VCI in SPL
 - use BOOTP in SPL regardless of CONFIG_CMD_DHCP

 arch/arm/cpu/armv7/omap-common/Makefile  |    3 ++
 arch/arm/cpu/armv7/omap-common/spl.c     |    5 +++
 arch/arm/cpu/armv7/omap-common/spl_eth.c |   50 ++++++++++++++++++++++++++++++
 arch/arm/include/asm/omap_common.h       |    4 +++
 common/Makefile                          |    6 ++++
 common/cmd_nvedit.c                      |    6 ++--
 common/env_common.c                      |    3 +-
 lib/Makefile                             |   10 ++++--
 lib/vsprintf.c                           |    2 +-
 net/bootp.c                              |   10 +++++-
 net/net.c                                |    3 ++
 spl/Makefile                             |    3 ++
 12 files changed, 98 insertions(+), 7 deletions(-)
 create mode 100644 arch/arm/cpu/armv7/omap-common/spl_eth.c
diff mbox

Patch

diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile
index 1394c3f..4945bdf 100644
--- a/arch/arm/cpu/armv7/omap-common/Makefile
+++ b/arch/arm/cpu/armv7/omap-common/Makefile
@@ -56,6 +56,9 @@  endif
 ifdef CONFIG_SPL_YMODEM_SUPPORT
 COBJS	+= spl_ymodem.o
 endif
+ifdef CONFIG_SPL_ETH_SUPPORT
+COBJS	+= spl_eth.o
+endif
 endif
 
 ifndef CONFIG_SPL_BUILD
diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c
index 4d1ac85..e7127fb 100644
--- a/arch/arm/cpu/armv7/omap-common/spl.c
+++ b/arch/arm/cpu/armv7/omap-common/spl.c
@@ -176,6 +176,11 @@  void board_init_r(gd_t *id, ulong dummy)
 		spl_ymodem_load_image();
 		break;
 #endif
+#ifdef CONFIG_SPL_ETH_SUPPORT
+	case BOOT_DEVICE_CPGMAC:
+		spl_eth_load_image();
+		break;
+#endif
 	default:
 		printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device);
 		hang();
diff --git a/arch/arm/cpu/armv7/omap-common/spl_eth.c b/arch/arm/cpu/armv7/omap-common/spl_eth.c
new file mode 100644
index 0000000..21d6e77
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/spl_eth.c
@@ -0,0 +1,50 @@ 
+/*
+ * (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 <net.h>
+#include <asm/omap_common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void spl_eth_load_image(void)
+{
+	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();
+	}
+	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/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 4e95eee..a433836 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -69,6 +69,7 @@  void preloader_console_init(void);
 #define BOOT_DEVICE_MMC1	8
 #define BOOT_DEVICE_MMC2	0
 #define BOOT_DEVICE_UART	65
+#define BOOT_DEVICE_CPGMAC	70
 #define BOOT_DEVICE_MMC2_2      0xFF
 #endif
 
@@ -107,6 +108,9 @@  void spl_mmc_load_image(void);
 /* YMODEM SPL functions */
 void spl_ymodem_load_image(void);
 
+/* Ethernet SPL functions */
+void spl_eth_load_image(void);
+
 #ifdef CONFIG_SPL_BOARD_INIT
 void spl_board_init(void);
 #endif
diff --git a/common/Makefile b/common/Makefile
index 483eb4d..d8b4b2a 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -187,6 +187,12 @@  endif
 
 ifdef CONFIG_SPL_BUILD
 COBJS-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += cmd_nvedit.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += command.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_common.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += env_nowhere.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += main.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 fd05e72..9bacf02 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -578,7 +578,8 @@  ulong getenv_ulong(const char *name, int base, ulong default_val)
 	return str ? simple_strtoul(str, NULL, base) : default_val;
 }
 
-#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
+#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) && \
+	!defined(CONFIG_SPL_BUILD)
 int do_env_save(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	printf("Saving Environment to %s...\n", env_name_spec);
@@ -912,7 +913,8 @@  static cmd_tbl_t cmd_env_sub[] = {
 #if defined(CONFIG_CMD_RUN)
 	U_BOOT_CMD_MKENT(run, CONFIG_SYS_MAXARGS, 1, do_run, "", ""),
 #endif
-#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE)
+#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) && \
+	!defined(CONFIG_SPL_BUILD)
 	U_BOOT_CMD_MKENT(save, 1, 0, do_env_save, "", ""),
 #endif
 	U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""),
diff --git a/common/env_common.c b/common/env_common.c
index c33d22d..493aff4 100644
--- a/common/env_common.c
+++ b/common/env_common.c
@@ -225,7 +225,8 @@  void env_relocate(void)
 	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);
diff --git a/lib/Makefile b/lib/Makefile
index c60c380..59b4e05 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -52,12 +52,18 @@  COBJS-$(CONFIG_SHA1) += sha1.o
 COBJS-$(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-$(CONFIG_SPL_NET_SUPPORT) += net_utils.o
+COBJS-$(CONFIG_SPL_NET_SUPPORT) += qsort.o
 endif
 COBJS-y += crc32.o
 COBJS-y += ctype.o
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index e38a4b7..6bb819c 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -784,7 +784,7 @@  void panic(const char *fmt, ...)
 	vprintf(fmt, args);
 	putc('\n');
 	va_end(args);
-#if defined (CONFIG_PANIC_HANG)
+#if defined (CONFIG_PANIC_HANG) || defined(CONFIG_SPL_BUILD)
 	hang();
 #else
 	udelay (100000);	/* allow messages to go out */
diff --git a/net/bootp.c b/net/bootp.c
index a68f914..13acf9a 100644
--- a/net/bootp.c
+++ b/net/bootp.c
@@ -9,6 +9,9 @@ 
  */
 
 #include <common.h>
+#ifdef CONFIG_SPL_BUILD
+#undef CONFIG_CMD_DHCP
+#endif
 #include <command.h>
 #include <net.h>
 #include "bootp.h"
@@ -533,8 +536,13 @@  static int BootpExtended(u8 *e)
 	*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))
+#ifndef CONFIG_SPL_BUILD
 	put_vci(e, CONFIG_VCI_STRING);
+#else
+	put_vci(e, CONFIG_SPL_NET_VCI_STRING);
+#endif
 #endif
 
 #if defined(CONFIG_BOOTP_SUBNETMASK)
diff --git a/net/net.c b/net/net.c
index 9de7d92..91d3e73 100644
--- a/net/net.c
+++ b/net/net.c
@@ -81,6 +81,9 @@ 
 
 
 #include <common.h>
+#ifdef CONFIG_SPL_BUILD
+#undef CONFIG_CMD_DHCP
+#endif
 #include <command.h>
 #include <net.h>
 #if defined(CONFIG_STATUS_LED)
diff --git a/spl/Makefile b/spl/Makefile
index ea7d475..925e84f 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -57,6 +57,9 @@  LIBS-$(CONFIG_SPL_NAND_SUPPORT) += drivers/mtd/nand/libnand.o
 LIBS-$(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