ENGR00303345 CMD: Add new command "bootaux" to boot auxiliary core

To boot a auxiliary core in asymmetric multicore system, introduce the
new command "bootaux" to do it.

Example of boot auxliary core from 0x70000000 where stores the boot head
information that should be parsed by each core.
"bootaux 0x70000000"

Signed-off-by: Ye.Li <B37916@freescale.com>

2 files changed, 59 insertions, 0 deletions

diff --git a/common/Makefile b/common/Makefile
index f0a05bb..8ab8140 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -215,6 +215,7 @@ COBJS-$(CONFIG_USB_KEYBOARD) += usb_kbd.o
 COBJS-$(CONFIG_FASTBOOT) += cmd_fastboot.o
 COBJS-$(CONFIG_CMD_DFU) += cmd_dfu.o
 COBJS-$(CONFIG_CMD_GPT) += cmd_gpt.o
+COBJS-$(CONFIG_CMD_BOOTAUX) += cmd_bootaux.o
 endif
 
 ifdef CONFIG_SPL_BUILD
diff --git a/common/cmd_bootaux.c b/common/cmd_bootaux.c
new file mode 100644
index 0000000..c758424
--- /dev/null
+++ b/common/cmd_bootaux.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+
+/* Allow for arch specific config before we boot */
+static int __arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
+{
+	/* please define platform specific arch_auxiliary_core_up() */
+	return CMD_RET_FAILURE;
+}
+int arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
+	__attribute__((weak, alias("__arch_auxiliary_core_up")));
+
+int do_bootaux(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	ulong addr;
+	int ret;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	addr = simple_strtoul(argv[1], NULL, 16);
+
+	printf ("## Starting auxiliary core at 0x%08lX ...\n", addr);
+
+	ret = arch_auxiliary_core_up(0, addr);
+	if (ret)
+		return CMD_RET_FAILURE;
+
+	return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(
+	bootaux, CONFIG_SYS_MAXARGS, 1,	do_bootaux,
+	"Start auxiliary core",
+	""
+);