Merge branch 'master' of git://www.denx.de/git/u-boot-blackfin

Conflicts:

	Makefile
	doc/README.standalone

Signed-off-by: Wolfgang Denk <wd@denx.de>

7 files changed, 340 insertions, 8 deletions

diff --git a/common/Makefile b/common/Makefile
index fbfa536..a88d1ef 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -76,6 +76,7 @@ COBJS-y += cmd_nand.o
 COBJS-$(CONFIG_CMD_NET) += cmd_net.o
 COBJS-y += cmd_nvedit.o
 COBJS-y += cmd_onenand.o
+COBJS-$(CONFIG_CMD_OTP) += cmd_otp.o
 ifdef CONFIG_PCI
 COBJS-$(CONFIG_CMD_PCI) += cmd_pci.o
 endif
@@ -86,6 +87,7 @@ COBJS-$(CONFIG_CMD_REISER) += cmd_reiser.o
 COBJS-y += cmd_sata.o
 COBJS-$(CONFIG_CMD_SCSI) += cmd_scsi.o
 COBJS-$(CONFIG_CMD_SPI) += cmd_spi.o
+COBJS-$(CONFIG_CMD_STRINGS) += cmd_strings.o
 COBJS-$(CONFIG_CMD_TERMINAL) += cmd_terminal.o
 COBJS-$(CONFIG_CMD_UNIVERSE) += cmd_universe.o
 COBJS-$(CONFIG_CMD_USB) += cmd_usb.o
diff --git a/common/cmd_bdinfo.c b/common/cmd_bdinfo.c
index 4e77461..bbb0192 100644
--- a/common/cmd_bdinfo.c
+++ b/common/cmd_bdinfo.c
@@ -273,6 +273,37 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	return 0;
 }
 
+#elif defined(CONFIG_BLACKFIN)
+
+int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	int i;
+	bd_t *bd = gd->bd;
+
+	printf("U-Boot      = %s\n", bd->bi_r_version);
+	printf("CPU         = %s\n", bd->bi_cpu);
+	printf("Board       = %s\n", bd->bi_board_name);
+	printf("VCO         = %lu MHz\n", bd->bi_vco / 1000000);
+	printf("CCLK        = %lu MHz\n", bd->bi_cclk / 1000000);
+	printf("SCLK        = %lu MHz\n", bd->bi_sclk / 1000000);
+
+	print_num("boot_params", (ulong)bd->bi_boot_params);
+	print_num("memstart",    (ulong)bd->bi_memstart);
+	print_num("memsize",     (ulong)bd->bi_memsize);
+	print_num("flashstart",  (ulong)bd->bi_flashstart);
+	print_num("flashsize",   (ulong)bd->bi_flashsize);
+	print_num("flashoffset", (ulong)bd->bi_flashoffset);
+
+	puts("ethaddr     =");
+	for (i = 0; i < 6; ++i)
+		printf("%c%02X", i ? ':' : ' ', bd->bi_enetaddr[i]);
+	puts("\nip_addr     = ");
+	print_IPaddr(bd->bi_ip_addr);
+	printf("\nbaudrate    = %d bps\n", bd->bi_baudrate);
+
+	return 0;
+}
+
 #else /* ! PPC, which leaves MIPS */
 
 int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
diff --git a/common/cmd_mem.c b/common/cmd_mem.c
index 5fce773..000107f 100644
--- a/common/cmd_mem.c
+++ b/common/cmd_mem.c
@@ -154,9 +154,32 @@ int do_mem_md ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		}
 	} while (nbytes > 0);
 #else
-	/* Print the lines. */
-	print_buffer(addr, (void*)addr, size, length, DISP_LINE_LEN/size);
-	addr += size*length;
+
+# if defined(CONFIG_BLACKFIN)
+	/* See if we're trying to display L1 inst */
+	if (addr_bfin_on_chip_mem(addr)) {
+		char linebuf[DISP_LINE_LEN];
+		ulong linebytes, nbytes = length * size;
+		do {
+			linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
+			memcpy(linebuf, (void *)addr, linebytes);
+			print_buffer(addr, linebuf, size, linebytes/size, DISP_LINE_LEN/size);
+
+			nbytes -= linebytes;
+			addr += linebytes;
+			if (ctrlc()) {
+				rc = 1;
+				break;
+			}
+		} while (nbytes > 0);
+	} else
+# endif
+
+	{
+		/* Print the lines. */
+		print_buffer(addr, (void*)addr, size, length, DISP_LINE_LEN/size);
+		addr += size*length;
+	}
 #endif
 
 	dp_last_addr = addr;
@@ -308,6 +331,13 @@ int do_mem_cmp (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 #endif
 
+#ifdef CONFIG_BLACKFIN
+	if (addr_bfin_on_chip_mem(addr1) || addr_bfin_on_chip_mem(addr2)) {
+		puts ("Comparison with L1 instruction memory not supported.\n\r");
+		return 0;
+	}
+#endif
+
 	ngood = 0;
 
 	while (count-- > 0) {
@@ -478,6 +508,14 @@ int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 #endif
 
+#ifdef CONFIG_BLACKFIN
+	/* See if we're copying to/from L1 inst */
+	if (addr_bfin_on_chip_mem(dest) || addr_bfin_on_chip_mem(addr)) {
+		memcpy((void *)dest, (void *)addr, count * size);
+		return 0;
+	}
+#endif
+
 	while (count-- > 0) {
 		if (size == 4)
 			*((ulong  *)dest) = *((ulong  *)addr);
@@ -1006,6 +1044,13 @@ mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
 	}
 #endif
 
+#ifdef CONFIG_BLACKFIN
+	if (addr_bfin_on_chip_mem(addr)) {
+		puts ("Can't modify L1 instruction in place. Use cp instead.\n\r");
+		return 0;
+	}
+#endif
+
 	/* Print the address, followed by value.  Then accept input for
 	 * the next value.  A non-converted value exits.
 	 */
diff --git a/common/cmd_otp.c b/common/cmd_otp.c
new file mode 100644
index 0000000..825fa34
--- /dev/null
+++ b/common/cmd_otp.c
@@ -0,0 +1,163 @@
+/*
+ * cmd_otp.c - interface to Blackfin on-chip One-Time-Programmable memory
+ *
+ * Copyright (c) 2007-2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+/* There are 512 128-bit "pages" (0x000 to 0x1FF).
+ * The pages are accessable as 64-bit "halfpages" (an upper and lower half).
+ * The pages are not part of the memory map.  There is an OTP controller which
+ * handles scanning in/out of bits.  While access is done through OTP MMRs,
+ * the bootrom provides C-callable helper functions to handle the interaction.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+
+#ifdef CONFIG_CMD_OTP
+
+#include <asm/blackfin.h>
+#include <asm/mach-common/bits/otp.h>
+
+static const char *otp_strerror(uint32_t err)
+{
+	switch (err) {
+	case 0:                   return "no error";
+	case OTP_WRITE_ERROR:     return "OTP fuse write error";
+	case OTP_READ_ERROR:      return "OTP fuse read error";
+	case OTP_ACC_VIO_ERROR:   return "invalid OTP address";
+	case OTP_DATA_MULT_ERROR: return "multiple bad bits detected";
+	case OTP_ECC_MULT_ERROR:  return "error in ECC bits";
+	case OTP_PREV_WR_ERROR:   return "space already written";
+	case OTP_DATA_SB_WARN:    return "single bad bit in half page";
+	case OTP_ECC_SB_WARN:     return "single bad bit in ECC";
+	default:                  return "unknown error";
+	}
+}
+
+#define lowup(x) ((x) % 2 ? "upper" : "lower")
+
+int do_otp(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	bool force = false;
+	if (!strcmp(argv[1], "--force")) {
+		force = true;
+		argv[1] = argv[0];
+		argv++;
+		--argc;
+	}
+
+	uint32_t (*otp_func)(uint32_t page, uint32_t flags, uint64_t *page_content);
+	if (!strcmp(argv[1], "read"))
+		otp_func = otp_read;
+	else if (!strcmp(argv[1], "write"))
+		otp_func = otp_write;
+	else {
+ usage:
+		printf("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	uint64_t *addr = (uint64_t *)simple_strtoul(argv[2], NULL, 16);
+	uint32_t page = simple_strtoul(argv[3], NULL, 16);
+	uint32_t flags, ret;
+	size_t i, count;
+	ulong half;
+
+	if (argc > 4)
+		count = simple_strtoul(argv[4], NULL, 16);
+	else
+		count = 2;
+
+	if (argc > 5) {
+		half = simple_strtoul(argv[5], NULL, 16);
+		if (half != 0 && half != 1) {
+			puts("Error: 'half' can only be '0' or '1'\n");
+			goto usage;
+		}
+	} else
+		half = 0;
+
+	/* do to the nature of OTP, make sure users are sure */
+	if (!force && otp_func == otp_write) {
+		printf(
+			"Writing one time programmable memory\n"
+			"Make sure your operating voltages and temperature are within spec\n"
+			"   source address:  0x%p\n"
+			"   OTP destination: %s page 0x%03X - %s page 0x%03X\n"
+			"   number to write: %ld halfpages\n"
+			" type \"YES\" (no quotes) to confirm: ",
+			addr,
+			lowup(half), page,
+			lowup(half + count - 1), page + (half + count - 1) / 2,
+			half + count
+		);
+
+		i = 0;
+		while (1) {
+			if (tstc()) {
+				const char exp_ans[] = "YES\r";
+				char c;
+				putc(c = getc());
+				if (exp_ans[i++] != c) {
+					printf(" Aborting\n");
+					return 1;
+				} else if (!exp_ans[i]) {
+					puts("\n");
+					break;
+				}
+			}
+		}
+
+		/* Only supported in newer silicon ... enable writing */
+#if (0)
+		otp_command(OTP_INIT, ...);
+#else
+		*pOTP_TIMING = 0x32149485;
+#endif
+	}
+
+	printf("OTP memory %s: addr 0x%08lx  page 0x%03X  count %ld ... ",
+		argv[1], addr, page, count);
+
+	ret = 0;
+	for (i = half; i < count + half; ++i) {
+		flags = (i % 2) ? OTP_UPPER_HALF : OTP_LOWER_HALF;
+		ret = otp_func(page, flags, addr);
+		if (ret & 0x1)
+			break;
+		else if (ret)
+			puts("W");
+		else
+			puts(".");
+		++addr;
+		if (i % 2)
+			++page;
+	}
+	if (ret & 0x1)
+		printf("\nERROR at page 0x%03X (%s-halfpage): 0x%03X: %s\n",
+			page, lowup(i), ret, otp_strerror(ret));
+	else
+		puts(" done\n");
+
+	if (otp_func == otp_write)
+		/* Only supported in newer silicon ... disable writing */
+#if (0)
+		otp_command(OTP_INIT, ...);
+#else
+		*pOTP_TIMING = 0x1485;
+#endif
+
+	return ret;
+}
+
+U_BOOT_CMD(otp, 6, 0, do_otp,
+	"otp - One-Time-Programmable sub-system\n",
+	"read <addr> <page> [count] [half]\n"
+	"otp write [--force] <addr> <page> [count] [half]\n"
+	"    - read/write 'count' half-pages starting at page 'page' (offset 'half')\n");
+
+#endif
diff --git a/common/cmd_reginfo.c b/common/cmd_reginfo.c
index bb6aa30..980664d 100644
--- a/common/cmd_reginfo.c
+++ b/common/cmd_reginfo.c
@@ -329,16 +329,53 @@ int do_reginfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 		*(volatile ulong*)MPC5XXX_SDRAM_CS0CFG);
 	printf ("\tSDRAMCS1: %08X\n",
 		*(volatile ulong*)MPC5XXX_SDRAM_CS1CFG);
+
+#elif defined(CONFIG_BLACKFIN)
+	puts("\nSystem Configuration registers\n");
+
+	puts("\nPLL Registers\n");
+	printf("\tPLL_DIV:   0x%04x   PLL_CTL:      0x%04x\n",
+		bfin_read_PLL_DIV(), bfin_read_PLL_CTL());
+	printf("\tPLL_STAT:  0x%04x   PLL_LOCKCNT:  0x%04x\n",
+		bfin_read_PLL_STAT(), bfin_read_PLL_LOCKCNT());
+	printf("\tVR_CTL:    0x%04x\n", bfin_read_VR_CTL());
+
+	puts("\nEBIU AMC Registers\n");
+	printf("\tEBIU_AMGCTL:   0x%04x\n", bfin_read_EBIU_AMGCTL());
+	printf("\tEBIU_AMBCTL0:  0x%08x   EBIU_AMBCTL1:  0x%08x\n",
+		bfin_read_EBIU_AMBCTL0(), bfin_read_EBIU_AMBCTL1());
+# ifdef EBIU_MODE
+	printf("\tEBIU_MBSCTL:   0x%08x   EBIU_ARBSTAT:  0x%08x\n",
+		bfin_read_EBIU_MBSCTL(), bfin_read_EBIU_ARBSTAT());
+	printf("\tEBIU_MODE:     0x%08x   EBIU_FCTL:     0x%08x\n",
+		bfin_read_EBIU_MODE(), bfin_read_EBIU_FCTL());
+# endif
+
+# ifdef EBIU_RSTCTL
+	puts("\nEBIU DDR Registers\n");
+	printf("\tEBIU_DDRCTL0:  0x%08x   EBIU_DDRCTL1:  0x%08x\n",
+		bfin_read_EBIU_DDRCTL0(), bfin_read_EBIU_DDRCTL1());
+	printf("\tEBIU_DDRCTL2:  0x%08x   EBIU_DDRCTL3:  0x%08x\n",
+		bfin_read_EBIU_DDRCTL2(), bfin_read_EBIU_DDRCTL3());
+	printf("\tEBIU_DDRQUE:   0x%08x   EBIU_RSTCTL    0x%04x\n",
+		bfin_read_EBIU_DDRQUE(), bfin_read_EBIU_RSTCTL());
+	printf("\tEBIU_ERRADD:   0x%08x   EBIU_ERRMST:   0x%04x\n",
+		bfin_read_EBIU_ERRADD(), bfin_read_EBIU_ERRMST());
+# else
+	puts("\nEBIU SDC Registers\n");
+	printf("\tEBIU_SDRRC:   0x%04x   EBIU_SDBCTL:  0x%04x\n",
+		bfin_read_EBIU_SDRRC(), bfin_read_EBIU_SDBCTL());
+	printf("\tEBIU_SDSTAT:  0x%04x   EBIU_SDGCTL:  0x%08x\n",
+		bfin_read_EBIU_SDSTAT(), bfin_read_EBIU_SDGCTL());
+# endif
+
 #endif /* CONFIG_MPC5200 */
 	return 0;
 }
 
  /**************************************************/
 
-#if ( defined(CONFIG_8xx)   || defined(CONFIG_405GP) || \
-      defined(CONFIG_405EP) || defined(CONFIG_MPC5200)  ) && \
-    defined(CONFIG_CMD_REGINFO)
-
+#if defined(CONFIG_CMD_REGINFO)
 U_BOOT_CMD(
  	reginfo,	2,	1,	do_reginfo,
 	"reginfo - print register information\n",
diff --git a/common/cmd_strings.c b/common/cmd_strings.c
new file mode 100644
index 0000000..bbf56a0
--- /dev/null
+++ b/common/cmd_strings.c
@@ -0,0 +1,49 @@
+/*
+ * cmd_strings.c - just like `strings` command
+ *
+ * Copyright (c) 2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+
+#ifdef CONFIG_CFG_STRINGS
+
+static char *start_addr, *last_addr;
+
+int do_strings(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	if (argc == 1) {
+		printf("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	if ((flag & CMD_FLAG_REPEAT) == 0) {
+		start_addr = (char *)simple_strtoul(argv[1], NULL, 16);
+		if (argc > 2)
+			last_addr = (char *)simple_strtoul(argv[2], NULL, 16);
+		else
+			last_addr = (char *)-1;
+	}
+
+	char *addr = start_addr;
+	do {
+		printf("%s\n", addr);
+		addr += strlen(addr) + 1;
+	} while (addr[0] && addr < last_addr);
+
+	last_addr = addr + (last_addr - start_addr);
+	start_addr = addr;
+
+	return 0;
+}
+
+U_BOOT_CMD(strings, 3, 1, do_strings,
+	"strings - display strings\n",
+	"<addr> [byte count]\n"
+	"    - display strings at <addr> for at least [byte count] or first double NUL\n");
+
+#endif
diff --git a/common/environment.c b/common/environment.c
index 24257f7..3b9914f 100644
--- a/common/environment.c
+++ b/common/environment.c
@@ -70,11 +70,16 @@
 /*
  * Macros to generate global absolutes.
  */
+#if defined(__bfin__)
+# define GEN_SET_VALUE(name, value) asm (".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
+#else
+# define GEN_SET_VALUE(name, value) asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
+#endif
 #define GEN_SYMNAME(str) SYM_CHAR #str
 #define GEN_VALUE(str) #str
 #define GEN_ABS(name, value) \
 		asm (".globl " GEN_SYMNAME(name)); \
-		asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
+		GEN_SET_VALUE(name, value)
 
 /*
  * Macros to transform values