Merge with /home/stefan/git/u-boot/acadia-nand-boot

6 files changed, 263 insertions, 4 deletions

diff --git a/board/amcc/acadia/Makefile b/board/amcc/acadia/Makefile
index abcbf3e..ddbcb80 100644
--- a/board/amcc/acadia/Makefile
+++ b/board/amcc/acadia/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).a
 
-COBJS	= $(BOARD).o cpr.o memory.o
+COBJS	= $(BOARD).o cmd_acadia.o cpr.o memory.o
 SOBJS	=
 
 SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/board/amcc/acadia/acadia.c b/board/amcc/acadia/acadia.c
index 3b63c8a..46d63e6 100644
--- a/board/amcc/acadia/acadia.c
+++ b/board/amcc/acadia/acadia.c
@@ -63,8 +63,14 @@ int board_early_init_f(void)
 	acadia_gpio_init();
 
 	/* Configure 405EZ for NAND usage */
-	mtsdr(sdrnand0, 0x80c00000);
-	mtsdr(sdrultra0, 0x8d110000);
+	mtsdr(sdrnand0, SDR_NAND0_NDEN | SDR_NAND0_NDAREN | SDR_NAND0_NDRBEN);
+	mfsdr(sdrultra0, reg);
+	reg &= ~SDR_ULTRA0_CSN_MASK;
+	reg |= (SDR_ULTRA0_CSNSEL0 >> CFG_NAND_CS) |
+		SDR_ULTRA0_NDGPIOBP |
+		SDR_ULTRA0_EBCRDYEN |
+		SDR_ULTRA0_NFSRSTEN;
+	mtsdr(sdrultra0, reg);
 
 	/* USB Host core needs this bit set */
 	mfsdr(sdrultra1, reg);
diff --git a/board/amcc/acadia/cmd_acadia.c b/board/amcc/acadia/cmd_acadia.c
new file mode 100644
index 0000000..fb7ea35
--- /dev/null
+++ b/board/amcc/acadia/cmd_acadia.c
@@ -0,0 +1,101 @@
+/*
+ * (C) Copyright 2007
+ * Stefan Roese, DENX Software Engineering, sr@denx.de.
+ *
+ * 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>
+#include <i2c.h>
+
+static u8 boot_267_nor[] = {
+	0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8e, 0x00,
+	0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00
+};
+
+static u8 boot_267_nand[] = {
+	0xd0, 0x38, 0xc3, 0x50, 0x13, 0x88, 0x8e, 0x00,
+	0x14, 0xc0, 0x36, 0xcc, 0x00, 0x0c, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00
+};
+
+static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	u8 chip;
+	u8 *buf;
+	int cpu_freq;
+
+	if (argc < 3) {
+		printf("Usage:\n%s\n", cmdtp->usage);
+		return 1;
+	}
+
+	cpu_freq = simple_strtol(argv[1], NULL, 10);
+	if (cpu_freq != 267) {
+		printf("Unsupported cpu-frequency - only 267 supported\n");
+		return 1;
+	}
+
+	/* use 0x50 as I2C EEPROM address for now */
+	chip = 0x50;
+
+	if ((strcmp(argv[2], "nor") != 0) &&
+	    (strcmp(argv[2], "nand") != 0)) {
+		printf("Unsupported boot-device - only nor|nand support\n");
+		return 1;
+	}
+
+	if (strcmp(argv[2], "nand") == 0) {
+		switch (cpu_freq) {
+		case 267:
+			buf = boot_267_nand;
+			break;
+		default:
+			break;
+		}
+	} else {
+		switch (cpu_freq) {
+		case 267:
+			buf = boot_267_nor;
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (i2c_write(chip, 0, 1, buf, 16) != 0)
+		printf("Error writing to EEPROM at address 0x%x\n", chip);
+	udelay(CFG_EEPROM_PAGE_WRITE_DELAY_MS * 1000);
+	if (i2c_write(chip, 0x10, 1, buf+16, 4) != 0)
+		printf("Error2 writing to EEPROM at address 0x%x\n", chip);
+
+	printf("Done\n");
+	printf("Please power-cycle the board for the changes to take effect\n");
+
+	return 0;
+}
+
+U_BOOT_CMD(
+	bootstrap,	3,	0,	do_bootstrap,
+	"bootstrap - program the I2C bootstrap EEPROM\n",
+	"<cpu-freq> <nor|nand> - program the I2C bootstrap EEPROM\n"
+	);
diff --git a/board/amcc/acadia/config.mk b/board/amcc/acadia/config.mk
index c8566ec..af5a46c 100644
--- a/board/amcc/acadia/config.mk
+++ b/board/amcc/acadia/config.mk
@@ -21,6 +21,12 @@
 # MA 02111-1307 USA
 #
 
+#
+# AMCC 405EZ Reference Platform (Acadia) board
+#
+
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
+
 ifndef TEXT_BASE
 TEXT_BASE = 0xFFFC0000
 endif
diff --git a/board/amcc/acadia/memory.c b/board/amcc/acadia/memory.c
index 5375d36..25904d3 100644
--- a/board/amcc/acadia/memory.c
+++ b/board/amcc/acadia/memory.c
@@ -39,6 +39,7 @@ void sdram_init(void)
 	return;
 }
 
+#if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
 static void cram_bcr_write(u32 wr_val)
 {
 	wr_val <<= 2;
@@ -62,9 +63,12 @@ static void cram_bcr_write(u32 wr_val)
 
 	return;
 }
+#endif
 
 long int initdram(int board_type)
 {
+#if !defined(CONFIG_NAND_U_BOOT) || defined(CONFIG_NAND_SPL)
+	int i;
 	u32 val;
 
 	/* 1. EBC need to program READY, CLK, ADV for ASync mode */
@@ -92,7 +96,12 @@ long int initdram(int board_type)
 
 	/* Config EBC to use RDY */
 	mfsdr(sdrultra0, val);
-	mtsdr(sdrultra0, val | 0x04000000);
+	mtsdr(sdrultra0, val | SDR_ULTRA0_EBCRDYEN);
+
+	/* Wait a short while, since for NAND booting this is too fast */
+	for (i=0; i<200000; i++)
+		;
+#endif
 
 	return (CFG_MBYTES_RAM << 20);
 }
diff --git a/board/amcc/acadia/u-boot-nand.lds b/board/amcc/acadia/u-boot-nand.lds
new file mode 100644
index 0000000..a5dae0e
--- /dev/null
+++ b/board/amcc/acadia/u-boot-nand.lds
@@ -0,0 +1,137 @@
+/*
+ * (C) Copyright 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)		}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)		}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)		}
+  .rela.got      : { *(.rela.got)		}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)		}
+  .rela.bss      : { *(.rela.bss)		}
+  .rel.plt       : { *(.rel.plt)		}
+  .rela.plt      : { *(.rela.plt)		}
+  .init          : { *(.init)	}
+  .plt : { *(.plt) }
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector layout of our flash chips!	XXX FIXME XXX	*/
+
+    cpu/ppc4xx/start.o	(.text)
+
+    /* Align to next NAND block */
+    . = ALIGN(0x4000);
+    common/environment.o  (.ppcenv)
+    /* Keep some space here for redundant env and potential bad env blocks */
+    . = ALIGN(0x10000);
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+  }
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  . = .;
+  __u_boot_cmd_start = .;
+  .u_boot_cmd : { *(.u_boot_cmd) }
+  __u_boot_cmd_end = .;
+
+
+  . = .;
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  __bss_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+
+  _end = . ;
+  PROVIDE (end = .);
+}