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authorMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
committerMinkyu Kang <mk7.kang@samsung.com>2010-04-19 10:26:18 +0900
commit83653121d7382fccfe329cb732f77f116341ef1d (patch)
tree0b1ce6764252af15dfb2614372de98a44a7ec61f /arch/blackfin/lib/boot.c
parent0f1f21a345e02a68ec16f7ab9e7dc687f9276089 (diff)
parent07739bcef5da07cc4a4edef8b91014ccc332eda3 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts: cpu/arm1176/cpu.c cpu/arm1176/start.S cpu/arm_cortexa8/s5pc1xx/Makefile cpu/arm_cortexa8/s5pc1xx/clock.c drivers/serial/serial_s5p.c include/asm-arm/arch-s5pc1xx/clk.h include/asm-arm/arch-s5pc1xx/gpio.h include/asm-arm/arch-s5pc1xx/uart.h Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'arch/blackfin/lib/boot.c')
-rw-r--r--arch/blackfin/lib/boot.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/blackfin/lib/boot.c b/arch/blackfin/lib/boot.c
new file mode 100644
index 0000000..951d5b0
--- /dev/null
+++ b/arch/blackfin/lib/boot.c
@@ -0,0 +1,63 @@
+/*
+ * U-boot - boot.c - misc boot helper functions
+ *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <asm/blackfin.h>
+
+#ifdef SHARED_RESOURCES
+extern void swap_to(int device_id);
+#endif
+
+static char *make_command_line(void)
+{
+ char *dest = (char *)CONFIG_LINUX_CMDLINE_ADDR;
+ char *bootargs = getenv("bootargs");
+
+ if (bootargs == NULL)
+ return NULL;
+
+ strncpy(dest, bootargs, CONFIG_LINUX_CMDLINE_SIZE);
+ dest[CONFIG_LINUX_CMDLINE_SIZE - 1] = 0;
+ return dest;
+}
+
+extern ulong bfin_poweron_retx;
+
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+{
+ int (*appl) (char *cmdline);
+ char *cmdline;
+
+ if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
+ return 1;
+
+#ifdef SHARED_RESOURCES
+ swap_to(FLASH);
+#endif
+
+ appl = (int (*)(char *))images->ep;
+
+ printf("Starting Kernel at = %p\n", appl);
+ cmdline = make_command_line();
+ icache_disable();
+ dcache_disable();
+ asm __volatile__(
+ "RETX = %[retx];"
+ "CALL (%0);"
+ :
+ : "p"(appl), "q0"(cmdline), [retx] "d"(bfin_poweron_retx)
+ );
+ /* does not return */
+
+ return 1;
+}