Move all command code into its own directory

There are a lot of unrelated files in common, including all of the commands.
Moving them into their own directory makes them easier to find and is more
logical.

Some commands include non-command code, such as cmd_scsi.c. This should be
sorted out at some point so that the function can be enabled with or without
the associated command.

Unfortunately, with m68k I get this error:

m68k:  +   M5329AFEE
+arch/m68k/cpu/mcf532x/start.o: In function `_start':
+arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o

I hope someone can shed some light on what this means. I hope it isn't
depending on the position of code in the image.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

1 files changed, 170 insertions, 0 deletions

diff --git a/cmd/cmd_bootldr.c b/cmd/cmd_bootldr.c
new file mode 100644
index 0000000000..bc5c1f95ea
--- /dev/null
+++ b/cmd/cmd_bootldr.c
@@ -0,0 +1,170 @@
+/*
+ * U-boot - bootldr.c
+ *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+
+#include <asm/blackfin.h>
+#include <asm/mach-common/bits/bootrom.h>
+
+/* Simple sanity check on the specified address to make sure it contains
+ * an LDR image of some sort.
+ */
+static bool ldr_valid_signature(uint8_t *data)
+{
+#if defined(__ADSPBF561__)
+
+	/* BF56x has a 4 byte global header */
+	if (data[3] == (GFLAG_56X_SIGN_MAGIC << (GFLAG_56X_SIGN_SHIFT - 24)))
+		return true;
+
+#elif defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
+      defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__) || \
+      defined(__ADSPBF538__) || defined(__ADSPBF539__)
+
+	/* all the BF53x should start at this address mask */
+	uint32_t addr;
+	memmove(&addr, data, sizeof(addr));
+	if ((addr & 0xFF0FFF0F) == 0xFF000000)
+		return true;
+#else
+
+	/* everything newer has a magic byte */
+	uint32_t count;
+	memmove(&count, data + 8, sizeof(count));
+	if (data[3] == 0xAD && count == 0)
+		return true;
+
+#endif
+
+	return false;
+}
+
+/* If the Blackfin is new enough, the Blackfin on-chip ROM supports loading
+ * LDRs from random memory addresses.  So whenever possible, use that.  In
+ * the older cases (BF53x/BF561), parse the LDR format ourselves.
+ */
+static void ldr_load(uint8_t *base_addr)
+{
+#if defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
+  /*defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__) ||*/\
+    defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__)
+
+	uint32_t addr;
+	uint32_t count;
+	uint16_t flags;
+
+	/* the bf56x has a 4 byte global header ... but it is useless to
+	 * us when booting an LDR from a memory address, so skip it
+	 */
+# ifdef __ADSPBF561__
+	base_addr += 4;
+# endif
+
+	memmove(&flags, base_addr + 8, sizeof(flags));
+	bfin_write_EVT1(flags & BFLAG_53X_RESVECT ? 0xFFA00000 : 0xFFA08000);
+
+	do {
+		/* block header may not be aligned */
+		memmove(&addr, base_addr, sizeof(addr));
+		memmove(&count, base_addr+4, sizeof(count));
+		memmove(&flags, base_addr+8, sizeof(flags));
+		base_addr += sizeof(addr) + sizeof(count) + sizeof(flags);
+
+		printf("loading to 0x%08x (%#x bytes) flags: 0x%04x\n",
+			addr, count, flags);
+
+		if (!(flags & BFLAG_53X_IGNORE)) {
+			if (flags & BFLAG_53X_ZEROFILL)
+				memset((void *)addr, 0x00, count);
+			else
+				memcpy((void *)addr, base_addr, count);
+
+			if (flags & BFLAG_53X_INIT) {
+				void (*init)(void) = (void *)addr;
+				init();
+			}
+		}
+
+		if (!(flags & BFLAG_53X_ZEROFILL))
+			base_addr += count;
+	} while (!(flags & BFLAG_53X_FINAL));
+
+#endif
+}
+
+/* For BF537, we use the _BOOTROM_BOOT_DXE_FLASH funky ROM function.
+ * For all other BF53x/BF56x, we just call the entry point.
+ * For everything else (newer), we use _BOOTROM_MEMBOOT ROM function.
+ */
+static void ldr_exec(void *addr)
+{
+#if defined(__ADSPBF534__) || defined(__ADSPBF536__) || defined(__ADSPBF537__)
+
+	/* restore EVT1 to reset value as this is what the bootrom uses as
+	 * the default entry point when booting the final block of LDRs
+	 */
+	bfin_write_EVT1(L1_INST_SRAM);
+	__asm__("call (%0);" : : "a"(_BOOTROM_MEMBOOT), "q7"(addr) : "RETS", "memory");
+
+#elif defined(__ADSPBF531__) || defined(__ADSPBF532__) || defined(__ADSPBF533__) || \
+      defined(__ADSPBF538__) || defined(__ADSPBF539__) || defined(__ADSPBF561__)
+
+	void (*ldr_entry)(void) = (void *)bfin_read_EVT1();
+	ldr_entry();
+
+#else
+
+	int32_t (*BOOTROM_MEM)(void *, int32_t, int32_t, void *) = (void *)_BOOTROM_MEMBOOT;
+	BOOTROM_MEM(addr, 0, 0, NULL);
+
+#endif
+}
+
+/*
+ * the bootldr command loads an address, checks to see if there
+ *   is a Boot stream that the on-chip BOOTROM can understand,
+ *   and loads it via the BOOTROM Callback. It is possible
+ *   to also add booting from SPI, or TWI, but this function does
+ *   not currently support that.
+ */
+int do_bootldr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	void *addr;
+
+	/* Get the address */
+	if (argc < 2)
+		addr = (void *)load_addr;
+	else
+		addr = (void *)simple_strtoul(argv[1], NULL, 16);
+
+	/* Check if it is a LDR file */
+	if (ldr_valid_signature(addr)) {
+		printf("## Booting ldr image at 0x%p ...\n", addr);
+		ldr_load(addr);
+
+		icache_disable();
+		dcache_disable();
+
+		ldr_exec(addr);
+	} else
+		printf("## No ldr image at address 0x%p\n", addr);
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	bootldr, 2, 0, do_bootldr,
+	"boot ldr image from memory",
+	"[addr]\n"
+	""
+);