Merge from "stable branch", tag LABEL_2003_06_28_1800-stable:
- Allow to call sysmon function interactively
- PIC on LWMON board needs delay after power-on
- Add missing RSR definitions for MPC8xx
- Improve log buffer handling: guarantee clean reset after power-on
- Add support for EXBITGEN board
- Add support for SL8245 board
diff --git a/board/exbitgen/Makefile b/board/exbitgen/Makefile
new file mode 100644
index 0000000..34bd4b2
--- /dev/null
+++ b/board/exbitgen/Makefile
@@ -0,0 +1,49 @@
+#
+# (C) Copyright 2000
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = lib$(BOARD).a
+
+OBJS = $(BOARD).o flash.o
+
+SOBJS = init.o
+
+
+$(LIB): $(OBJS) $(SOBJS)
+ $(AR) crv $@ $^
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/exbitgen/config.mk b/board/exbitgen/config.mk
new file mode 100644
index 0000000..42ea0c6
--- /dev/null
+++ b/board/exbitgen/config.mk
@@ -0,0 +1,33 @@
+#
+# (C) Copyright 2000
+# 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
+#
+
+#
+# ExbitGen board
+#
+
+LDFLAGS += $(LINKER_UNDEFS)
+
+TEXT_BASE := 0xFFF80000
+#TEXT_BASE := 0x00100000
+
+PLATFORM_RELFLAGS := $(PLATFORM_RELFLAGS)
diff --git a/board/exbitgen/exbitgen.c b/board/exbitgen/exbitgen.c
new file mode 100644
index 0000000..f2cd8ca
--- /dev/null
+++ b/board/exbitgen/exbitgen.c
@@ -0,0 +1,117 @@
+#include <asm/u-boot.h>
+#include <asm/processor.h>
+#include <common.h>
+#include "exbitgen.h"
+
+/* ************************************************************************ */
+int board_pre_init (void)
+/* ------------------------------------------------------------------------ --
+ * Purpose :
+ * Remarks :
+ * Restrictions:
+ * See also :
+ * Example :
+ * ************************************************************************ */
+{
+ unsigned long i;
+
+ /*-------------------------------------------------------------------------+
+ | Interrupt controller setup for the Walnut board.
+ | Note: IRQ 0-15 405GP internally generated; active high; level sensitive
+ | IRQ 16 405GP internally generated; active low; level sensitive
+ | IRQ 17-24 RESERVED
+ | IRQ 25 (EXT IRQ 0) FPGA; active high; level sensitive
+ | IRQ 26 (EXT IRQ 1) SMI; active high; level sensitive
+ | IRQ 27 (EXT IRQ 2) Not Used
+ | IRQ 28 (EXT IRQ 3) PCI SLOT 3; active low; level sensitive
+ | IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
+ | IRQ 30 (EXT IRQ 5) PCI SLOT 1; active low; level sensitive
+ | IRQ 31 (EXT IRQ 6) PCI SLOT 0; active low; level sensitive
+ | Note for Walnut board:
+ | An interrupt taken for the FPGA (IRQ 25) indicates that either
+ | the Mouse, Keyboard, IRDA, or External Expansion caused the
+ | interrupt. The FPGA must be read to determine which device
+ | caused the interrupt. The default setting of the FPGA clears
+ |
+ +-------------------------------------------------------------------------*/
+
+ mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
+ mtdcr (uicer, 0x00000000); /* disable all ints */
+ mtdcr (uiccr, 0x00000020); /* set all but FPGA SMI to be non-critical */
+ mtdcr (uicpr, 0xFFFFFF90); /* set int polarities */
+ mtdcr (uictr, 0x10000000); /* set int trigger levels */
+ mtdcr (uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
+ mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
+
+ /* Perform reset of PHY connected to PPC via register in CPLD */
+ out8 (PHY_CTRL_ADDR, 0x2e); /* activate nRESET,FDX,F100,ANEN, enable output */
+ for (i = 0; i < 10000000; i++) {
+ ;
+ }
+ out8 (PHY_CTRL_ADDR, 0x2f); /* deactivate nRESET */
+
+ return 0;
+}
+
+
+/* ************************************************************************ */
+int checkboard (void)
+/* ------------------------------------------------------------------------ --
+ * Purpose :
+ * Remarks :
+ * Restrictions:
+ * See also :
+ * Example :
+ * ************************************************************************ */
+{
+ printf ("Exbit H/W id: %d\n", in8 (HW_ID_ADDR));
+ return (0);
+}
+
+/* ************************************************************************ */
+long int initdram (int board_type)
+/* ------------------------------------------------------------------------ --
+ * Purpose : Determines size of mounted DRAM.
+ * Remarks : Size is determined by reading SDRAM configuration registers as
+ * set up by sdram_init.
+ * Restrictions:
+ * See also :
+ * Example :
+ * ************************************************************************ */
+{
+ ulong tot_size;
+ ulong bank_size;
+ ulong tmp;
+
+ tot_size = 0;
+
+ mtdcr (memcfga, mem_mb0cf);
+ tmp = mfdcr (memcfgd);
+ if (tmp & 0x00000001) {
+ bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+ tot_size += bank_size;
+ }
+
+ mtdcr (memcfga, mem_mb1cf);
+ tmp = mfdcr (memcfgd);
+ if (tmp & 0x00000001) {
+ bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+ tot_size += bank_size;
+ }
+
+ mtdcr (memcfga, mem_mb2cf);
+ tmp = mfdcr (memcfgd);
+ if (tmp & 0x00000001) {
+ bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+ tot_size += bank_size;
+ }
+
+ mtdcr (memcfga, mem_mb3cf);
+ tmp = mfdcr (memcfgd);
+ if (tmp & 0x00000001) {
+ bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+ tot_size += bank_size;
+ }
+
+ return tot_size;
+}
diff --git a/board/exbitgen/exbitgen.h b/board/exbitgen/exbitgen.h
new file mode 100644
index 0000000..058ad48
--- /dev/null
+++ b/board/exbitgen/exbitgen.h
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2003
+ * 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
+ */
+
+#define GPIO_CPU_LED GPIO_3
+
+
+#define CPLD_BASE 0x10000000 /* t.b.m. */
+#define DEBUG_LEDS_ADDR CPLD_BASE + 0x01
+#define HW_ID_ADDR CPLD_BASE + 0x02
+#define DIP_SWITCH_ADDR CPLD_BASE + 0x04
+#define PHY_CTRL_ADDR CPLD_BASE + 0x05
+#define SPI_OUT_ADDR CPLD_BASE + 0x07
+#define SPI_IN_ADDR CPLD_BASE + 0x08
+#define MDIO_OUT_ADDR CPLD_BASE + 0x09
+#define MDIO_IN_ADDR CPLD_BASE + 0x0A
+#define MISC_OUT_ADDR CPLD_BASE + 0x0B
+
+/* Addresses used on I2C bus */
+#define LM75_CHIP_ADDR 0x9C
+#define LM75_CPU_ADDR 0x9E
+#define SDRAM_SPD_ADDR 0xA0
+
+#define SDRAM_SPD_WRITE_ADDRESS (SDRAM_SPD_ADDR)
+#define SDRAM_SPD_READ_ADDRESS (SDRAM_SPD_ADDR+1)
+
+#ifndef FALSE
+#define FALSE 0
+#endif
+
+#ifndef TRUE
+#define TRUE 1
+#endif
diff --git a/board/exbitgen/flash.c b/board/exbitgen/flash.c
new file mode 100644
index 0000000..f687ea3
--- /dev/null
+++ b/board/exbitgen/flash.c
@@ -0,0 +1,597 @@
+/*
+ * (C) Copyright 2003
+ * 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
+ */
+
+/*
+ * Modified 4/5/2001
+ * Wait for completion of each sector erase command issued
+ * 4/5/2001
+ * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
+ */
+
+#include <asm/u-boot.h>
+#include <asm/processor.h>
+#include <ppc4xx.h>
+#include <common.h>
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info);
+static int write_word (flash_info_t *info, ulong dest, ulong data);
+
+#ifdef MEIGSBOARD_ONBOARD_FLASH /* onboard = 2MB */
+# ifdef CONFIG_EXBITGEN
+# define FLASH_WORD_SIZE unsigned long
+# endif
+#else /* Meigsboard socket flash = 512KB */
+# ifdef CONFIG_EXBITGEN
+# define FLASH_WORD_SIZE unsigned char
+# endif
+#endif
+
+#ifdef CONFIG_EXBITGEN
+#define ADDR0 0x5555
+#define ADDR1 0x2aaa
+#define FLASH_WORD_SIZE unsigned char
+#endif
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+ unsigned long bank_size;
+ unsigned long tot_size;
+ unsigned long bank_addr;
+ int i;
+
+ /* Init: no FLASHes known */
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ flash_info[i].size = 0;
+ }
+
+ tot_size = 0;
+
+ /* Detect Boot Flash */
+ bank_addr = CFG_FLASH0_BASE;
+ bank_size = flash_get_size((vu_long *)bank_addr, &flash_info[0]);
+ if (bank_size > 0) {
+ (void)flash_protect(FLAG_PROTECT_CLEAR,
+ bank_addr,
+ bank_addr + bank_size - 1,
+ &flash_info[0]);
+ }
+ if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+ printf ("## Unknown FLASH on Boot Flash Bank\n");
+ }
+ flash_info[0].size = bank_size;
+ tot_size += bank_size;
+
+ /* Detect Application Flash */
+ bank_addr = CFG_FLASH1_BASE;
+ for (i = 1; i < CFG_MAX_FLASH_BANKS; ++i) {
+ bank_size = flash_get_size((vu_long *)bank_addr, &flash_info[i]);
+ if (flash_info[i].flash_id == FLASH_UNKNOWN) {
+ break;
+ }
+ if (bank_size > 0) {
+ (void)flash_protect(FLAG_PROTECT_CLEAR,
+ bank_addr,
+ bank_addr + bank_size - 1,
+ &flash_info[i]);
+ }
+ flash_info[i].size = bank_size;
+ tot_size += bank_size;
+ bank_addr += bank_size;
+ }
+ if (flash_info[1].flash_id == FLASH_UNKNOWN) {
+ printf ("## Unknown FLASH on Application Flash Bank\n");
+ }
+
+ /* Protect monitor and environment sectors */
+#if CFG_MONITOR_BASE >= CFG_FLASH0_BASE
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + monitor_flash_len - 1,
+ &flash_info[0]);
+#if 0xfffffffc >= CFG_FLASH0_BASE
+#if 0xfffffffc <= CFG_FLASH0_BASE + CFG_FLASH0_SIZE - 1
+ flash_protect(FLAG_PROTECT_SET,
+ 0xfffffffc, 0xffffffff,
+ &flash_info[0]);
+#endif
+#endif
+#endif
+
+#if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+ &flash_info[0]);
+#endif
+
+ return tot_size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t *info)
+{
+ int i;
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("missing or unknown FLASH type\n");
+ return;
+ }
+
+ switch (info->flash_id & FLASH_VENDMASK) {
+ case FLASH_MAN_AMD: printf ("AMD "); break;
+ case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
+ case FLASH_MAN_SST: printf ("SST "); break;
+ default: printf ("Unknown Vendor "); break;
+ }
+
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AM040: printf ("AM29F040 (512 Kbit, uniform sector size)\n");
+ break;
+ case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AMDLV033C: printf ("AM29LV033C (32 Mbit, uniform sector size)\n");
+ break;
+ case FLASH_AMDLV065D: printf ("AM29LV065D (64 Mbit, uniform sector size)\n");
+ break;
+ case FLASH_SST800A: printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
+ break;
+ case FLASH_SST160A: printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
+ break;
+ case FLASH_SST040: printf ("SST39LF/VF040 (4 Mbit, uniform sector size)\n");
+ break;
+ default: printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ printf (" Size: %ld KB in %d Sectors\n",
+ info->size >> 10, info->sector_count);
+
+ printf (" Sector Start Addresses:");
+ for (i=0; i<info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf ("\n ");
+ printf (" %08lX%s",
+ info->start[i],
+ info->protect[i] ? " (RO)" : " "
+ );
+ }
+ printf ("\n");
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+
+/*-----------------------------------------------------------------------
+ */
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+{
+ short i;
+ FLASH_WORD_SIZE value;
+ ulong base = (ulong)addr;
+ volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
+
+ /* Write auto select command: read Manufacturer ID */
+ addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr2[ADDR0] = (FLASH_WORD_SIZE)0x00900090;
+
+ value = addr2[0];
+
+ switch (value) {
+ case (FLASH_WORD_SIZE)AMD_MANUFACT:
+ info->flash_id = FLASH_MAN_AMD;
+ break;
+ case (FLASH_WORD_SIZE)FUJ_MANUFACT:
+ info->flash_id = FLASH_MAN_FUJ;
+ break;
+ case (FLASH_WORD_SIZE)SST_MANUFACT:
+ info->flash_id = FLASH_MAN_SST;
+ break;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ return (0); /* no or unknown flash */
+ }
+
+ value = addr2[1]; /* device ID */
+
+ switch (value) {
+ case (FLASH_WORD_SIZE)AMD_ID_F040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x0080000; /* => 512 ko */
+ break;
+ case (FLASH_WORD_SIZE)AMD_ID_LV400T:
+ info->flash_id += FLASH_AM400T;
+ info->sector_count = 11;
+ info->size = 0x00080000;
+ break; /* => 0.5 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV400B:
+ info->flash_id += FLASH_AM400B;
+ info->sector_count = 11;
+ info->size = 0x00080000;
+ break; /* => 0.5 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV800T:
+ info->flash_id += FLASH_AM800T;
+ info->sector_count = 19;
+ info->size = 0x00100000;
+ break; /* => 1 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV800B:
+ info->flash_id += FLASH_AM800B;
+ info->sector_count = 19;
+ info->size = 0x00100000;
+ break; /* => 1 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV160T:
+ info->flash_id += FLASH_AM160T;
+ info->sector_count = 35;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV160B:
+ info->flash_id += FLASH_AM160B;
+ info->sector_count = 35;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV033C:
+ info->flash_id += FLASH_AMDLV033C;
+ info->sector_count = 64;
+ info->size = 0x00400000;
+ break; /* => 4 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV065D:
+ info->flash_id += FLASH_AMDLV065D;
+ info->sector_count = 128;
+ info->size = 0x00800000;
+ break; /* => 8 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV320T:
+ info->flash_id += FLASH_AM320T;
+ info->sector_count = 67;
+ info->size = 0x00400000;
+ break; /* => 4 MB */
+
+ case (FLASH_WORD_SIZE)AMD_ID_LV320B:
+ info->flash_id += FLASH_AM320B;
+ info->sector_count = 67;
+ info->size = 0x00400000;
+ break; /* => 4 MB */
+
+ case (FLASH_WORD_SIZE)SST_ID_xF800A:
+ info->flash_id += FLASH_SST800A;
+ info->sector_count = 16;
+ info->size = 0x00100000;
+ break; /* => 1 MB */
+
+ case (FLASH_WORD_SIZE)SST_ID_xF160A:
+ info->flash_id += FLASH_SST160A;
+ info->sector_count = 32;
+ info->size = 0x00200000;
+ break; /* => 2 MB */
+ case (FLASH_WORD_SIZE)SST_ID_xF040:
+ info->flash_id += FLASH_SST040;
+ info->sector_count = 128;
+ info->size = 0x00080000;
+ break; /* => 512KB */
+
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ return (0); /* => no or unknown flash */
+
+ }
+
+ /* set up sector start address table */
+ if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
+ (info->flash_id == FLASH_AM040) ||
+ (info->flash_id == FLASH_AMDLV033C) ||
+ (info->flash_id == FLASH_AMDLV065D)) {
+ ulong sectsize = info->size / info->sector_count;
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = base + (i * sectsize);
+ } else {
+ if (info->flash_id & FLASH_BTYPE) {
+ /* set sector offsets for bottom boot block type */
+ info->start[0] = base + 0x00000000;
+ info->start[1] = base + 0x00004000;
+ info->start[2] = base + 0x00006000;
+ info->start[3] = base + 0x00008000;
+ for (i = 4; i < info->sector_count; i++) {
+ info->start[i] = base + (i * 0x00010000) - 0x00030000;
+ }
+ } else {
+ /* set sector offsets for top boot block type */
+ i = info->sector_count - 1;
+ info->start[i--] = base + info->size - 0x00004000;
+ info->start[i--] = base + info->size - 0x00006000;
+ info->start[i--] = base + info->size - 0x00008000;
+ for (; i >= 0; i--) {
+ info->start[i] = base + i * 0x00010000;
+ }
+ }
+ }
+
+ /* check for protected sectors */
+ for (i = 0; i < info->sector_count; i++) {
+ /* read sector protection at sector address, (A7 .. A0) = 0x02 */
+ /* D0 = 1 if protected */
+
+ addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
+ if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
+ info->protect[i] = 0;
+ else
+ info->protect[i] = addr2[2] & 1;
+ }
+
+ /* switch to the read mode */
+ if (info->flash_id != FLASH_UNKNOWN) {
+ addr2 = (FLASH_WORD_SIZE *)info->start[0];
+ *addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
+ }
+
+ return (info->size);
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+ volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]);
+ volatile FLASH_WORD_SIZE *addr2;
+ int flag, prot, sect;
+ ulong start, now, last;
+
+ if ((s_first < 0) || (s_first > s_last)) {
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("- missing\n");
+ } else {
+ printf ("- no sectors to erase\n");
+ }
+ return 1;
+ }
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("Can't erase unknown flash type - aborted\n");
+ return 1;
+ }
+
+ prot = 0;
+ for (sect=s_first; sect<=s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
+ }
+ }
+
+ if (prot) {
+ printf ("- Warning: %d protected sectors will not be erased!\n",
+ prot);
+ } else {
+ printf ("\n");
+ }
+
+ start = get_timer (0);
+ last = start;
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect <= s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ addr2 = (FLASH_WORD_SIZE *)(info->start[sect]);
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
+ addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr2[0] = (FLASH_WORD_SIZE)0x00300030;
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* wait at least 80us - let's wait 1 ms */
+ udelay (1000);
+
+ while ((addr2[0] & 0x00800080) !=
+ (FLASH_WORD_SIZE) 0x00800080) {
+ if ((now=get_timer(start)) >
+ CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ addr[0] = (FLASH_WORD_SIZE)0x00F000F0;
+ return 1;
+ }
+
+ /* show that we're waiting */
+ if ((now - last) > 1000) { /* every second */
+ putc ('.');
+ last = now;
+ }
+ }
+
+ addr[0] = (FLASH_WORD_SIZE)0x00F000F0;
+ }
+ }
+
+ printf (" done\n");
+
+ return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+ ulong cp, wp, data;
+ int i, l, rc;
+
+ wp = (addr & ~3); /* get lower word aligned address */
+
+ /*
+ * handle unaligned start bytes
+ */
+ if ((l = addr - wp) != 0) {
+ data = 0;
+ for (i=0, cp=wp; i<l; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *)cp);
+ }
+ for (; i<4 && cnt>0; ++i) {
+ data = (data << 8) | *src++;
+ --cnt;
+ ++cp;
+ }
+ for (; cnt==0 && i<4; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *)cp);
+ }
+
+ if ((rc = write_word(info, wp, data)) != 0) {
+ return (rc);
+ }
+ wp += 4;
+ }
+
+ /*
+ * handle word aligned part
+ */
+ while (cnt >= 4) {
+ data = 0;
+ for (i=0; i<4; ++i) {
+ data = (data << 8) | *src++;
+ }
+ if ((rc = write_word(info, wp, data)) != 0) {
+ return (rc);
+ }
+ wp += 4;
+ cnt -= 4;
+ }
+
+ if (cnt == 0) {
+ return (0);
+ }
+
+ /*
+ * handle unaligned tail bytes
+ */
+ data = 0;
+ for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+ data = (data << 8) | *src++;
+ --cnt;
+ }
+ for (; i<4; ++i, ++cp) {
+ data = (data << 8) | (*(uchar *)cp);
+ }
+
+ return (write_word(info, wp, data));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_word (flash_info_t *info, ulong dest, ulong data)
+{
+ volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)(info->start[0]);
+ volatile FLASH_WORD_SIZE *dest2 = (FLASH_WORD_SIZE *)dest;
+ volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data;
+ ulong start;
+ int flag;
+ int i;
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*((volatile ulong *)dest) & data) != data) {
+ printf("dest = %08lx, *dest = %08lx, data = %08lx\n",
+ dest, *(volatile ulong *)dest, data);
+ return 2;
+ }
+
+ for (i=0; i < 4/sizeof(FLASH_WORD_SIZE); i++) {
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
+ addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
+ addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0;
+ dest2[i] = data2[i];
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* data polling for D7 */
+ start = get_timer (0);
+ while ((dest2[i] & 0x00800080) != (data2[i] & 0x00800080)) {
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+ addr2[0] = (FLASH_WORD_SIZE)0x00F000F0;
+ return (1);
+ }
+ }
+ }
+
+ addr2[0] = (FLASH_WORD_SIZE)0x00F000F0;
+
+ return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
diff --git a/board/exbitgen/init.S b/board/exbitgen/init.S
new file mode 100644
index 0000000..96b0aba
--- /dev/null
+++ b/board/exbitgen/init.S
@@ -0,0 +1,1009 @@
+/*----------------------------------------------------------------------+
+ *
+ * This source code has been made available to you by IBM on an AS-IS
+ * basis. Anyone receiving this source is licensed under IBM
+ * copyrights to use it in any way he or she deems fit, including
+ * copying it, modifying it, compiling it, and redistributing it either
+ * with or without modifications. No license under IBM patents or
+ * patent applications is to be implied by the copyright license.
+ *
+ * Any user of this software should understand that IBM cannot provide
+ * technical support for this software and will not be responsible for
+ * any consequences resulting from the use of this software.
+ *
+ * Any person who transfers this source code or any derivative work
+ * must include the IBM copyright notice, this paragraph, and the
+ * preceding two paragraphs in the transferred software.
+ *
+ * COPYRIGHT I B M CORPORATION 1995
+ * LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
+ *-----------------------------------------------------------------------
+ */
+
+#include <config.h>
+#include <ppc4xx.h>
+#include "config.h"
+
+#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */
+#define FPGA_BRDC 0xF0300004
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+
+#include "exbitgen.h"
+
+/* IIC declarations (This is an extract from 405gp_i2c.h, which also contains some */
+/* c-code declarations and consequently can't be included here). */
+/* (Possibly to be solved somehow else). */
+/*--------------------------------------------------------------------- */
+#define I2C_REGISTERS_BASE_ADDRESS 0xEF600500
+#define IIC_MDBUF (I2C_REGISTERS_BASE_ADDRESS+IICMDBUF)
+#define IIC_SDBUF (I2C_REGISTERS_BASE_ADDRESS+IICSDBUF)
+#define IIC_LMADR (I2C_REGISTERS_BASE_ADDRESS+IICLMADR)
+#define IIC_HMADR (I2C_REGISTERS_BASE_ADDRESS+IICHMADR)
+#define IIC_CNTL (I2C_REGISTERS_BASE_ADDRESS+IICCNTL)
+#define IIC_MDCNTL (I2C_REGISTERS_BASE_ADDRESS+IICMDCNTL)
+#define IIC_STS (I2C_REGISTERS_BASE_ADDRESS+IICSTS)
+#define IIC_EXTSTS (I2C_REGISTERS_BASE_ADDRESS+IICEXTSTS)
+#define IIC_LSADR (I2C_REGISTERS_BASE_ADDRESS+IICLSADR)
+#define IIC_HSADR (I2C_REGISTERS_BASE_ADDRESS+IICHSADR)
+#define IIC_CLKDIV (I2C_REGISTERS_BASE_ADDRESS+IICCLKDIV)
+#define IIC_INTRMSK (I2C_REGISTERS_BASE_ADDRESS+IICINTRMSK)
+#define IIC_XFRCNT (I2C_REGISTERS_BASE_ADDRESS+IICXFRCNT)
+#define IIC_XTCNTLSS (I2C_REGISTERS_BASE_ADDRESS+IICXTCNTLSS)
+#define IIC_DIRECTCNTL (I2C_REGISTERS_BASE_ADDRESS+IICDIRECTCNTL)
+
+/* MDCNTL Register Bit definition */
+#define IIC_MDCNTL_HSCL 0x01
+#define IIC_MDCNTL_EUBS 0x02
+#define IIC_MDCNTL_FMDB 0x40
+#define IIC_MDCNTL_FSDB 0x80
+
+/* CNTL Register Bit definition */
+#define IIC_CNTL_PT 0x01
+#define IIC_CNTL_READ 0x02
+#define IIC_CNTL_CHT 0x04
+
+/* STS Register Bit definition */
+#define IIC_STS_PT 0X01
+#define IIC_STS_ERR 0X04
+#define IIC_STS_MDBS 0X20
+
+/* EXTSTS Register Bit definition */
+#define IIC_EXTSTS_XFRA 0X01
+#define IIC_EXTSTS_ICT 0X02
+#define IIC_EXTSTS_LA 0X04
+
+/* LED codes used for inditing progress and errors during read of DIMM SPD. */
+/*--------------------------------------------------------------------- */
+#define LED_SDRAM_CODE_1 0xef
+#define LED_SDRAM_CODE_2 0xee
+#define LED_SDRAM_CODE_3 0xed
+#define LED_SDRAM_CODE_4 0xec
+#define LED_SDRAM_CODE_5 0xeb
+#define LED_SDRAM_CODE_6 0xea
+#define LED_SDRAM_CODE_7 0xe9
+#define LED_SDRAM_CODE_8 0xe8
+#define LED_SDRAM_CODE_9 0xe7
+#define LED_SDRAM_CODE_10 0xe6
+#define LED_SDRAM_CODE_11 0xe5
+#define LED_SDRAM_CODE_12 0xe4
+#define LED_SDRAM_CODE_13 0xe3
+#define LED_SDRAM_CODE_14 0xe2
+#define LED_SDRAM_CODE_15 0xe1
+#define LED_SDRAM_CODE_16 0xe0
+
+
+#define TIMEBASE_10PS (1000000000 / CONFIG_SYS_CLK_FREQ) * 100
+
+#define FLASH_8bit_AP 0x9B015480
+#define FLASH_8bit_CR 0xFFF18000 /* 1MB(min), 8bit, R/W */
+
+#define FLASH_32bit_AP 0x9B015480
+#define FLASH_32bit_CR 0xFFE3C000 /* 2MB, 32bit, R/W */
+
+
+#define WDCR_EBC(reg,val) addi r4,0,reg;\
+ mtdcr ebccfga,r4;\
+ addis r4,0,val@h;\
+ ori r4,r4,val@l;\
+ mtdcr ebccfgd,r4
+
+/*---------------------------------------------------------------------
+ * Function: ext_bus_cntlr_init
+ * Description: Initializes the External Bus Controller for the external
+ * peripherals. IMPORTANT: For pass1 this code must run from
+ * cache since you can not reliably change a peripheral banks
+ * timing register (pbxap) while running code from that bank.
+ * For ex., since we are running from ROM on bank 0, we can NOT
+ * execute the code that modifies bank 0 timings from ROM, so
+ * we run it from cache.
+ * Bank 0 - Boot flash
+ * Bank 1-4 - application flash
+ * Bank 5 - CPLD
+ * Bank 6 - not used
+ * Bank 7 - Heathrow chip
+ *---------------------------------------------------------------------
+ */
+ .globl ext_bus_cntlr_init
+ext_bus_cntlr_init:
+ mflr r4 /* save link register */
+ bl ..getAddr
+..getAddr:
+ mflr r3 /* get address of ..getAddr */
+ mtlr r4 /* restore link register */
+ addi r4,0,14 /* set ctr to 10; used to prefetch */
+ mtctr r4 /* 10 cache lines to fit this function */
+ /* in cache (gives us 8x10=80 instrctns) */
+..ebcloop:
+ icbt r0,r3 /* prefetch cache line for addr in r3 */
+ addi r3,r3,32 /* move to next cache line */
+ bdnz ..ebcloop /* continue for 10 cache lines */
+
+ mflr r31 /* save link register */
+
+ /*-----------------------------------------------------------
+ * Delay to ensure all accesses to ROM are complete before changing
+ * bank 0 timings. 200usec should be enough.
+ * 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles
+ *-----------------------------------------------------------
+ */
+
+ addis r3,0,0x0
+ ori r3,r3,0xA000 /* ensure 200usec have passed since reset */
+ mtctr r3
+..spinlp:
+ bdnz ..spinlp /* spin loop */
+
+ /*---------------------------------------------------------------
+ * Memory Bank 0 (Boot Flash) initialization
+ *---------------------------------------------------------------
+ */
+ WDCR_EBC(pb0ap, FLASH_32bit_AP)
+ WDCR_EBC(pb0cr, 0xffe38000)
+/*pnc WDCR_EBC(pb0cr, FLASH_32bit_CR) */
+
+ /*---------------------------------------------------------------
+ * Memory Bank 5 (CPLD) initialization
+ *---------------------------------------------------------------
+ */
+ WDCR_EBC(pb5ap, 0x01010040)
+/*jsa recommendation: WDCR_EBC(pb5ap, 0x00010040) */
+ WDCR_EBC(pb5cr, 0x10038000)
+
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 6 (not used) initialization */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb6cr, 0x00000000)
+
+ /* Read HW ID to determine whether old H2 board or new generic CPU board */
+ addis r3, 0, HW_ID_ADDR@h
+ ori r3, r3, HW_ID_ADDR@l
+ lbz r3,0x0000(r3)
+ cmpi 0, r3, 1 /* if (HW_ID==1) */
+ beq setup_h2evalboard /* then jump */
+ cmpi 0, r3, 2 /* if (HW_ID==2) */
+ beq setup_genieboard /* then jump */
+ cmpi 0, r3, 3 /* if (HW_ID==3) */
+ beq setup_genieboard /* then jump */
+
+setup_genieboard:
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 1 (Application Flash) initialization for generic CPU board */
+ /*--------------------------------------------------------------- */
+/* WDCR_EBC(pb1ap, 0x7b015480) /###* T.B.M. */
+/* WDCR_EBC(pb1ap, 0x7F8FFE80) /###* T.B.M. */
+ WDCR_EBC(pb1ap, 0x9b015480) /* hlb-20020207: burst 8 bit 6 cycles */
+
+/* WDCR_EBC(pb1cr, 0x20098000) /###* 16 MB */
+ WDCR_EBC(pb1cr, 0x200B8000) /* 32 MB */
+
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 4 (Onboard FPGA) initialization for generic CPU board */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb4ap, 0x01010000) /* */
+ WDCR_EBC(pb4cr, 0x1021c000) /* */
+
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 7 (Heathrow chip on Reference board) initialization */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb7ap, 0x200ffe80) /* No Ready, many wait states (let reflections die out) */
+ WDCR_EBC(pb7cr, 0X4001A000)
+
+ bl setup_continue
+
+
+setup_h2evalboard:
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 1 (Application Flash) initialization */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb1ap, 0x7b015480) /* T.B.M. */
+/*3010 WDCR_EBC(pb1ap, 0x7F8FFE80) /###* T.B.M. */
+ WDCR_EBC(pb1cr, 0x20058000)
+
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 2 (Application Flash) initialization */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb2ap, 0x7b015480) /* T.B.M. */
+/*3010 WDCR_EBC(pb2ap, 0x7F8FFE80) /###* T.B.M. */
+ WDCR_EBC(pb2cr, 0x20458000)
+
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 3 (Application Flash) initialization */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb3ap, 0x7b015480) /* T.B.M. */
+/*3010 WDCR_EBC(pb3ap, 0x7F8FFE80) /###* T.B.M. */
+ WDCR_EBC(pb3cr, 0x20858000)
+
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 4 (Application Flash) initialization */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb4ap, 0x7b015480) /* T.B.M. */
+/*3010 WDCR_EBC(pb4ap, 0x7F8FFE80) /###* T.B.M. */
+ WDCR_EBC(pb4cr, 0x20C58000)
+
+ /*--------------------------------------------------------------- */
+ /* Memory Bank 7 (Heathrow chip) initialization */
+ /*--------------------------------------------------------------- */
+ WDCR_EBC(pb7ap, 0x02000280) /* No Ready, 4 wait states */
+ WDCR_EBC(pb7cr, 0X4001A000)
+
+setup_continue:
+
+
+ mtlr r31 /* restore lr */
+ nop /* pass2 DCR errata #8 */
+ blr
+
+/*--------------------------------------------------------------------- */
+/* Function: sdram_init */
+/* Description: Configures SDRAM memory banks. */
+/*--------------------------------------------------------------------- */
+ .globl sdram_init
+
+sdram_init:
+#if CFG_MONITOR_BASE < CFG_FLASH_BASE
+ blr
+#else
+ mflr r31
+
+ /* output SDRAM code on LEDs */
+ addi r4, 0, LED_SDRAM_CODE_1
+ addis r5, 0, 0x1000
+ ori r5, r5, 0x0001
+ stb r4,0(r5)
+ eieio
+
+ /* Read contents of spd */
+ /*--------------------- */
+ bl read_spd
+
+ /*----------------------------------------------------------- */
+ /* */
+ /* */
+ /* Update SDRAM timing register */
+ /* */
+ /* */
+ /*----------------------------------------------------------- */
+
+ /* Read PLL feedback divider and calculate clock period of local bus in */
+ /* granularity of 10 ps. Save clock period in r30 */
+ /*-------------------------------------------------------------- */
+ mfdcr r4, pllmd
+ addi r9, 0, 25
+ srw r4, r4, r9
+ andi. r4, r4, 0x07
+ addis r5, 0, TIMEBASE_10PS@h
+ ori r5, r5, TIMEBASE_10PS@l
+ divwu r30, r5, r4
+
+ /* Determine CASL */
+ /*--------------- */
+ bl find_casl /* Returns CASL in r3 */
+
+ /* Calc trp_clocks = (trp * 100 + (clk - 1)) / clk */
+ /* (trp read from byte 27 in granularity of 1 ns) */
+ /*------------------------------------------------ */
+ mulli r16, r16, 100
+ add r16, r16, r30
+ addi r6, 0, 1
+ subf r16, r6, r16
+ divwu r16, r16, r30
+
+ /* Calc trcd_clocks = (trcd * 100 + (clk - 1) ) / clk */
+ /* (trcd read from byte 29 in granularity of 1 ns) */
+ /*--------------------------------------------------- */
+ mulli r17, r17, 100
+ add r17, r17, r30
+ addi r6, 0, 1
+ subf r17, r6, r17
+ divwu r17, r17, r30
+
+ /* Calc tras_clocks = (tras * 100 + (clk - 1) ) / clk */
+ /* (tras read from byte 30 in granularity of 1 ns) */
+ /*--------------------------------------------------- */
+ mulli r18, r18, 100
+ add r18, r18, r30
+ addi r6, 0, 1
+ subf r18, r6, r18
+ divwu r18, r18, r30
+
+ /* Calc trc_clocks = trp_clocks + tras_clocks */
+ /*------------------------------------------- */
+ add r18, r18, r16
+
+ /* CASL value */
+ /*----------- */
+ addi r9, 0, 23
+ slw r4, r3, r9
+
+ /* PTA = trp_clocks - 1 */
+ /*--------------------- */
+ addi r6, 0, 1
+ subf r5, r6, r16
+ addi r9, 0, 18
+ slw r5, r5, r9
+ or r4, r4, r5
+
+ /* CTP = trc_clocks - trp_clocks - trcd_clocks - 1 */
+ /*------------------------------------------------ */
+ addi r5, r18, 0
+ subf r5, r16, r5
+ subf r5, r17, r5
+ addi r6, 0, 1
+ subf r5, r6, r5
+ addi r9, 0, 16
+ slw r5, r5, r9
+ or r4, r4, r5
+
+ /* LDF = 1 */
+ /*-------- */
+ ori r4, r4, 0x4000
+
+ /* RFTA = trc_clocks - 4 */
+ /*---------------------- */
+ addi r6, 0, 4
+ subf r5, r6, r18
+ addi r9, 0, 2
+ slw r5, r5, r9
+ or r4, r4, r5
+
+ /* RCD = trcd_clocks - 1 */
+ /*---------------------- */
+ addi r6, 0, 1
+ subf r5, r6, r17
+ or r4, r4, r5
+
+ /*----------------------------------------------------------- */
+ /* Set SDTR1 */
+ /*----------------------------------------------------------- */
+ addi r5,0,mem_sdtr1
+ mtdcr memcfga,r5
+ mtdcr memcfgd,r4
+
+ /*----------------------------------------------------------- */
+ /* */
+ /* */
+ /* Update memory bank 0-3 configuration registers */
+ /* */
+ /* */
+ /*----------------------------------------------------------- */
+
+ /* Build contents of configuration register for bank 0 into r6 */
+ /*------------------------------------------------------------ */
+ bl find_mode /* returns addressing mode in r3 */
+ addi r29, r3, 0 /* save mode temporarily in r29 */
+ bl find_size_code /* returns size code in r3 */
+ addi r9, 0, 17 /* bit offset of size code in configuration register */
+ slw r3, r3, r9 /* */
+ addi r9, 0, 13 /* bit offset of addressing mode in configuration register */
+ slw r29, r29, r9 /* */
+ or r3, r29, r3 /* merge size code and addressing mode */
+ ori r6, r3, CFG_SDRAM_BASE + 1 /* insert base address and enable bank */
+
+ /* Calculate banksize r15 = (density << 22) / 2 */
+ /*--------------------------------------------- */
+ addi r9, 0, 21
+ slw r15, r15, r9
+
+ /* Set SDRAM bank 0 register and adjust r6 for next bank */
+ /*------------------------------------------------------ */
+ addi r7,0,mem_mb0cf
+ mtdcr memcfga,r7
+ mtdcr memcfgd,r6
+
+ add r6, r6, r15 /* add bank size to base address for next bank */
+
+ /* If two rows/banks then set SDRAM bank 1 register and adjust r6 for next bank */
+ /*---------------------------------------------------------------------------- */
+ cmpi 0, r12, 2
+ bne b1skip
+
+ addi r7,0,mem_mb1cf
+ mtdcr memcfga,r7
+ mtdcr memcfgd,r6
+
+ add r6, r6, r15 /* add bank size to base address for next bank */
+
+ /* Set SDRAM bank 2 register and adjust r6 for next bank */
+ /*------------------------------------------------------ */
+b1skip: addi r7,0,mem_mb2cf
+ mtdcr memcfga,r7
+ mtdcr memcfgd,r6
+
+ add r6, r6, r15 /* add bank size to base address for next bank */
+
+ /* If two rows/banks then set SDRAM bank 3 register */
+ /*------------------------------------------------ */
+ cmpi 0, r12, 2
+ bne b3skip
+
+ addi r7,0,mem_mb3cf
+ mtdcr memcfga,r7
+ mtdcr memcfgd,r6
+b3skip:
+
+ /*----------------------------------------------------------- */
+ /* Set RTR */
+ /*----------------------------------------------------------- */
+ cmpi 0, r30, 1600
+ bge rtr_1
+ addis r7, 0, 0x05F0 /* RTR value for 100Mhz */
+ bl rtr_2
+rtr_1: addis r7, 0, 0x03F8
+rtr_2: addi r4,0,mem_rtr
+ mtdcr memcfga,r4
+ mtdcr memcfgd,r7
+
+ /*----------------------------------------------------------- */
+ /* Delay to ensure 200usec have elapsed since reset. Assume worst */
+ /* case that the core is running 200Mhz: */
+ /* 200,000,000 (cycles/sec) X .000200 (sec) = 0x9C40 cycles */
+ /*----------------------------------------------------------- */
+ addis r3,0,0x0000
+ ori r3,r3,0xA000 /* ensure 200usec have passed since reset */
+ mtctr r3
+..spinlp2:
+ bdnz ..spinlp2 /* spin loop */
+
+ /*----------------------------------------------------------- */
+ /* Set memory controller options reg, MCOPT1. */
+ /* Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst */
+ /* read/prefetch. */
+ /*----------------------------------------------------------- */
+ addi r4,0,mem_mcopt1
+ mtdcr memcfga,r4
+ addis r4,0,0x80C0 /* set DC_EN=1 */
+ ori r4,r4,0x0000
+ mtdcr memcfgd,r4
+
+
+ /*----------------------------------------------------------- */
+ /* Delay to ensure 10msec have elapsed since reset. This is */
+ /* required for the MPC952 to stabalize. Assume worst */
+ /* case that the core is running 200Mhz: */
+ /* 200,000,000 (cycles/sec) X .010 (sec) = 0x1E8480 cycles */
+ /* This delay should occur before accessing SDRAM. */
+ /*----------------------------------------------------------- */
+ addis r3,0,0x001E
+ ori r3,r3,0x8480 /* ensure 10msec have passed since reset */
+ mtctr r3
+..spinlp3:
+ bdnz ..spinlp3 /* spin loop */
+
+ /* output SDRAM code on LEDs */
+ addi r4, 0, LED_SDRAM_CODE_16
+ addis r5, 0, 0x1000
+ ori r5, r5, 0x0001
+ stb r4,0(r5)
+ eieio
+
+ mtlr r31 /* restore lr */
+ blr
+
+/*--------------------------------------------------------------------- */
+/* Function: read_spd */
+/* Description: Reads contents of SPD and saves parameters to be used for */
+/* configuration in dedicated registers (see code below). */
+/*--------------------------------------------------------------------- */
+
+#define WRITE_I2C(reg,val) \
+ addi r3,0,val;\
+ addis r4, 0, 0xef60;\
+ ori r4, r4, 0x0500 + reg;\
+ stb r3, 0(r4);\
+ eieio
+
+#define READ_I2C(reg) \
+ addis r3, 0, 0xef60;\
+ ori r3, r3, 0x0500 + reg;\
+ lbz r3, 0x0000(r3);\
+ eieio
+
+read_spd:
+
+ mflr r5
+
+ /* Initialize i2c */
+ /*--------------- */
+ WRITE_I2C(IICLMADR, 0x00) /* clear lo master address */
+ WRITE_I2C(IICHMADR, 0x00) /* clear hi master address */
+ WRITE_I2C(IICLSADR, 0x00) /* clear lo slave address */
+ WRITE_I2C(IICHSADR, 0x00) /* clear hi slave address */
+ WRITE_I2C(IICSTS, 0x08) /* update status register */
+ WRITE_I2C(IICEXTSTS, 0x8f)
+ WRITE_I2C(IICCLKDIV, 0x05)
+ WRITE_I2C(IICINTRMSK, 0x00) /* no interrupts */
+ WRITE_I2C(IICXFRCNT, 0x00) /* clear transfer count */
+ WRITE_I2C(IICXTCNTLSS, 0xf0) /* clear extended control & stat */
+ WRITE_I2C(IICMDCNTL, IIC_MDCNTL_FSDB | IIC_MDCNTL_FMDB) /* mode control */
+ READ_I2C(IICMDCNTL)
+ ori r3, r3, IIC_MDCNTL_EUBS | IIC_MDCNTL_HSCL
+ WRITE_I2C(IICMDCNTL, r3) /* mode control */
+ WRITE_I2C(IICCNTL, 0x00) /* clear control reg */
+
+ /* Wait until initialization completed */
+ /*------------------------------------ */
+ bl wait_i2c_transfer_done
+
+ WRITE_I2C(IICHMADR, 0x00) /* 7-bit addressing */
+ WRITE_I2C(IICLMADR, SDRAM_SPD_WRITE_ADDRESS)
+
+ /* Write 0 into buffer(start address) */
+ /*----------------------------------- */
+ WRITE_I2C(IICMDBUF, 0x00);
+
+ /* Wait a little */
+ /*-------------- */
+ addis r3,0,0x0000
+ ori r3,r3,0xA000
+ mtctr r3
+in02: bdnz in02
+
+ /* Issue write command */
+ /*-------------------- */
+ WRITE_I2C(IICCNTL, IIC_CNTL_PT)
+ bl wait_i2c_transfer_done
+
+ /* Read 128 bytes */
+ /*--------------- */
+ addi r7, 0, 0 /* byte counter in r7 */
+ addi r8, 0, 0 /* checksum in r8 */
+rdlp:
+ /* issue read command */
+ /*------------------- */
+ cmpi 0, r7, 127
+ blt rd01
+ WRITE_I2C(IICCNTL, IIC_CNTL_READ | IIC_CNTL_PT)
+ bl rd02
+rd01: WRITE_I2C(IICCNTL, IIC_CNTL_READ | IIC_CNTL_CHT | IIC_CNTL_PT)
+rd02: bl wait_i2c_transfer_done
+
+ /* Fetch byte from buffer */
+ /*----------------------- */
+ READ_I2C(IICMDBUF)
+
+ /* Retrieve parameters that are going to be used during configuration. */
+ /* Save them in dedicated registers. */
+ /*------------------------------------------------------------ */
+ cmpi 0, r7, 3 /* Save byte 3 in r10 */
+ bne rd10
+ addi r10, r3, 0
+rd10: cmpi 0, r7, 4 /* Save byte 4 in r11 */
+ bne rd11
+ addi r11, r3, 0
+rd11: cmpi 0, r7, 5 /* Save byte 5 in r12 */
+ bne rd12
+ addi r12, r3, 0
+rd12: cmpi 0, r7, 17 /* Save byte 17 in r13 */
+ bne rd13
+ addi r13, r3, 0
+rd13: cmpi 0, r7, 18 /* Save byte 18 in r14 */
+ bne rd14
+ addi r14, r3, 0
+rd14: cmpi 0, r7, 31 /* Save byte 31 in r15 */
+ bne rd15
+ addi r15, r3, 0
+rd15: cmpi 0, r7, 27 /* Save byte 27 in r16 */
+ bne rd16
+ addi r16, r3, 0
+rd16: cmpi 0, r7, 29 /* Save byte 29 in r17 */
+ bne rd17
+ addi r17, r3, 0
+rd17: cmpi 0, r7, 30 /* Save byte 30 in r18 */
+ bne rd18
+ addi r18, r3, 0
+rd18: cmpi 0, r7, 9 /* Save byte 9 in r19 */
+ bne rd19
+ addi r19, r3, 0
+rd19: cmpi 0, r7, 23 /* Save byte 23 in r20 */
+ bne rd20
+ addi r20, r3, 0
+rd20: cmpi 0, r7, 25 /* Save byte 25 in r21 */
+ bne rd21
+ addi r21, r3, 0
+rd21:
+
+ /* Calculate checksum of the first 63 bytes */
+ /*----------------------------------------- */
+ cmpi 0, r7, 63
+ bgt rd31
+ beq rd30
+ add r8, r8, r3
+ bl rd31
+
+ /* Verify checksum at byte 63 */
+ /*--------------------------- */
+rd30: andi. r8, r8, 0xff /* use only 8 bits */
+ cmp 0, r8, r3
+ beq rd31
+ addi r4, 0, LED_SDRAM_CODE_8
+ addis r5, 0, 0x1000
+ ori r5, r5, 0x0001
+ stb r4,0(r5)
+ eieio
+rderr: bl rderr
+
+rd31:
+
+ /* Increment byte counter and check whether all bytes have been read. */
+ /*------------------------------------------------------------------- */
+ addi r7, r7, 1
+ cmpi 0, r7, 127
+ bgt rd05
+ bl rdlp
+rd05:
+ mtlr r5 /* restore lr */
+ blr
+
+wait_i2c_transfer_done:
+ mflr r6
+wt01: READ_I2C(IICSTS)
+ andi. r4, r3, IIC_STS_PT
+ cmpi 0, r4, IIC_STS_PT
+ beq wt01
+ mtlr r6 /* restore lr */
+ blr
+
+/*--------------------------------------------------------------------- */
+/* Function: find_mode */
+/* Description: Determines addressing mode to be used dependent on */
+/* number of rows (r10 = byte 3 from SPD), number of columns (r11 = */
+/* byte 4 from SPD) and number of banks (r13 = byte 17 from SPD). */
+/* mode is returned in r3. */
+/* (It would be nicer having a table, pnc). */
+/*--------------------------------------------------------------------- */
+find_mode:
+
+ mflr r5
+
+ cmpi 0, r10, 11
+ bne fm01
+ cmpi 0, r11, 9
+ bne fm01
+ cmpi 0, r13, 2
+ bne fm01
+ addi r3, 0, 1
+ bl fmfound
+
+fm01: cmpi 0, r10, 11
+ bne fm02
+ cmpi 0, r11, 10
+ bne fm02
+ cmpi 0, r13, 2
+ bne fm02
+ addi r3, 0, 1
+ bl fmfound
+
+fm02: cmpi 0, r10, 12
+ bne fm03
+ cmpi 0, r11, 9
+ bne fm03
+ cmpi 0, r13, 4
+ bne fm03
+ addi r3, 0, 2
+ bl fmfound
+
+fm03: cmpi 0, r10, 12
+ bne fm04
+ cmpi 0, r11, 10
+ bne fm04
+ cmpi 0, r13, 4
+ bne fm04
+ addi r3, 0, 2
+ bl fmfound
+
+fm04: cmpi 0, r10, 13
+ bne fm05
+ cmpi 0, r11, 9
+ bne fm05
+ cmpi 0, r13, 4
+ bne fm05
+ addi r3, 0, 3
+ bl fmfound
+
+fm05: cmpi 0, r10, 13
+ bne fm06
+ cmpi 0, r11, 10
+ bne fm06
+ cmpi 0, r13, 4
+ bne fm06
+ addi r3, 0, 3
+ bl fmfound
+
+fm06: cmpi 0, r10, 13
+ bne fm07
+ cmpi 0, r11, 11
+ bne fm07
+ cmpi 0, r13, 4
+ bne fm07
+ addi r3, 0, 3
+ bl fmfound
+
+fm07: cmpi 0, r10, 12
+ bne fm08
+ cmpi 0, r11, 8
+ bne fm08
+ cmpi 0, r13, 2
+ bne fm08
+ addi r3, 0, 4
+ bl fmfound
+
+fm08: cmpi 0, r10, 12
+ bne fm09
+ cmpi 0, r11, 8
+ bne fm09
+ cmpi 0, r13, 4
+ bne fm09
+ addi r3, 0, 4
+ bl fmfound
+
+fm09: cmpi 0, r10, 11
+ bne fm10
+ cmpi 0, r11, 8
+ bne fm10
+ cmpi 0, r13, 2
+ bne fm10
+ addi r3, 0, 5
+ bl fmfound
+
+fm10: cmpi 0, r10, 11
+ bne fm11
+ cmpi 0, r11, 8
+ bne fm11
+ cmpi 0, r13, 4
+ bne fm11
+ addi r3, 0, 5
+ bl fmfound
+
+fm11: cmpi 0, r10, 13
+ bne fm12
+ cmpi 0, r11, 8
+ bne fm12
+ cmpi 0, r13, 2
+ bne fm12
+ addi r3, 0, 6
+ bl fmfound
+
+fm12: cmpi 0, r10, 13
+ bne fm13
+ cmpi 0, r11, 8
+ bne fm13
+ cmpi 0, r13, 4
+ bne fm13
+ addi r3, 0, 6
+ bl fmfound
+
+fm13: cmpi 0, r10, 13
+ bne fm14
+ cmpi 0, r11, 9
+ bne fm14
+ cmpi 0, r13, 2
+ bne fm14
+ addi r3, 0, 7
+ bl fmfound
+
+fm14: cmpi 0, r10, 13
+ bne fm15
+ cmpi 0, r11, 10
+ bne fm15
+ cmpi 0, r13, 2
+ bne fm15
+ addi r3, 0, 7
+ bl fmfound
+
+fm15:
+ /* not found, error code to be issued on LEDs */
+ addi r7, 0, LED_SDRAM_CODE_2
+ addis r6, 0, 0x1000
+ ori r6, r6, 0x0001
+ stb r7,0(r6)
+ eieio
+fmerr: bl fmerr
+
+fmfound:addi r6, 0, 1
+ subf r3, r6, r3
+
+ mtlr r5 /* restore lr */
+ blr
+
+/*--------------------------------------------------------------------- */
+/* Function: find_size_code */
+/* Description: Determines size code to be used in configuring SDRAM controller */
+/* dependent on density (r15 = byte 31 from SPD) */
+/*--------------------------------------------------------------------- */
+find_size_code:
+
+ mflr r5
+
+ addi r3, r15, 0 /* density */
+ addi r7, 0, 0
+fs01: andi. r6, r3, 0x01
+ cmpi 0, r6, 1
+ beq fs04
+
+ addi r7, r7, 1
+ cmpi 0, r7, 7
+ bge fs02
+ addi r9, 0, 1
+ srw r3, r3, r9
+ bl fs01
+
+ /* not found, error code to be issued on LEDs */
+fs02: addi r4, 0, LED_SDRAM_CODE_3
+ addis r8, 0, 0x1000
+ ori r8, r8, 0x0001
+ stb r4,0(r8)
+ eieio
+fs03: bl fs03
+
+fs04: addi r3, r7, 0
+ cmpi 0, r3, 0
+ beq fs05
+ addi r6, 0, 1
+ subf r3, r6, r3
+fs05:
+ mtlr r5 /* restore lr */
+ blr
+
+/*--------------------------------------------------------------------- */
+/* Function: find_casl */
+/* Description: Determines CAS latency */
+/*--------------------------------------------------------------------- */
+find_casl:
+
+ mflr r5
+
+ andi. r14, r14, 0x7f /* r14 holds supported CAS latencies */
+ addi r3, 0, 0xff /* preset determined CASL */
+ addi r4, 0, 6 /* Start at bit 6 of supported CAS latencies */
+ addi r2, 0, 0 /* Start finding highest CAS latency */
+
+fc01: srw r6, r14, r4 /* */
+ andi. r6, r6, 0x01 /* */
+ cmpi 0, r6, 1 /* Check bit for current latency */
+ bne fc06 /* If not supported, go to next */
+
+ cmpi 0, r2, 2 /* Check if third-highest latency */
+ bge fc04 /* If so, go calculate with another format */
+
+ cmpi 0, r2, 0 /* Check if highest latency */
+ bgt fc02 /* */
+ addi r7, r19, 0 /* SDRAM cycle time for highest CAS latenty */
+
+ bl fc03
+fc02:
+ addi r7, r20, 0 /* SDRAM cycle time for next-highest CAS latenty */
+fc03:
+ addi r8, r7, 0
+ addi r9, 0, 4
+ srw r7, r7, r9
+ andi. r7, r7, 0x0f
+ mulli r7, r7, 100
+ andi. r8, r8, 0x0f
+ mulli r8, r8, 10
+ add r7, r7, r8
+ cmp 0, r7, r30
+ bgt fc05
+ addi r3, r2, 0
+ bl fc05
+fc04:
+ addi r7, r21, 0 /* SDRAM cycle time for third-highest CAS latenty */
+ addi r8, r7, 0
+ addi r9, 0, 2
+ srw r7, r7, r9
+ andi. r7, r7, 0x3f
+ mulli r7, r7, 100
+ andi. r8, r8, 0x03
+ mulli r8, r8, 25
+ add r7, r7, r8
+
+ cmp 0, r7, r30
+ bgt fc05
+ addi r3, r2, 0
+
+fc05: addi r2, r2, 1 /* next latency */
+ cmpi 0, r2, 3
+ bge fc07
+fc06: addi r6, 0, 1
+ subf r4, r6, r4
+ cmpi 0, r4, 0
+ bne fc01
+
+fc07:
+
+ mtlr r5 /* restore lr */
+ blr
+#endif
+
+
+/* Peripheral Bank 1 Access Parameters */
+/* 0 BME = 1 ; burstmode enabled */
+/* " 1:8" TWT=00110110 ;Transfer wait (details below) */
+/* 1:5 FWT=00110 ; first wait = 6 cycles */
+/* 6:8 BWT=110 ; burst wait = 6 cycles */
+/* 9:11 000 ; reserved */
+/* 12:13 CSN=00 ; chip select on timing = 0 */
+/* 14:15 OEN=01 ; output enable */
+/* 16:17 WBN=01 ; write byte enable on timing 1 cycle */
+/* 18:19 WBF=01 ; write byte enable off timing 1 cycle */
+/* 20:22 TH=010 ; transfer hold = 2 cycles */
+/* 23 RE=0 ; ready enable = disabled */
+/* 24 SOR=1 ; sample on ready = same PerClk */
+/* 25 BEM=0 ; byte enable mode = only for write cycles */
+/* 26 PEN=0 ; parity enable = disable */
+/* 27:31 00000 ;reserved */
+/* */
+/* 1 + 00110 + 110 + 000 + 00 + 01 + 01 + 01 + 010 + 0 + 1 + 0 + 0 + 00000 = 0x9b015480 */
+/* */
+/* */
+/* Code for BDI probe: */
+/* */
+/* WDCR 18 0x00000011 ;Select PB1AP */
+/* WDCR 19 0x1b015480 ;PB1AP: Flash */
+/* */
+/* Peripheral Bank 0 Access Parameters */
+/* 0:11 BAS=0x200 ; base address select = 0x200 * 0x100000 (1MB) = */
+/* 12:14 BS=100 ; bank size = 16MB (100) / 32MB (101) */
+/* 15:16 BU=11 ; bank usage = read/write */
+/* 17:18 BW=00 ; bus width = 8-bit */
+/* 19:31 ; reserved */
+/* */
+/* 0x200 + 100 + 11 + 00 + 0 0000 0000 0000 = 0x20098000 */
+/* WDCR 18 0x00000001 ;Select PB1CR */
+/* WDCR 19 0x20098000 ;PB1CR: 1MB at 0x00100000, r/w, 8bit */
+
+/* For CPLD */
+/* 0 + 00000 + 010 + 000 + 00 + 01 + 00 + 00 + 000 + 0 + 0 + 1 + 0 + 00000 */
+/* WDCR_EBC(pb5ap, 0x01010040) */
+/*jsa recommendation: WDCR_EBC(pb5ap, 0x00010040) */
+/* WDCR_EBC(pb5cr, 0X10018000) */
+/* Access parms */
+/* 100 3 8 0 0 0 */
+/* 0x100 + 001 + 11 + 00 + 0 0000 0000 0000 = 0x10038000 */
+/* Address : 0x10000000 */
+/* Size: 2 MB */
+/* Usage: read/write */
+/* Width: 32 bit */
+
+/* For Genie onboard fpga 32 bit interface */
+/* 0 1 0 1 0 0 0 0 */
+/* 0 + 00000 + 010 + 000 + 00 + 01 + 00 + 00 + 000 + 0 + 0 + 0 + 0 + 00000 */
+/* 0x01010000 */
+/* Access parms */
+/* 102 1 c 0 0 0 */
+/* 0x102 + 000 + 11 + 10 + 0 0000 0000 0000 = 0x1021c000 */
+/* Address : 0x10200000 */
+/* Size: 2 MB */
+/* Usage: read/write */
+/* Width: 32 bit */
+
+/* Walnut fpga pb7ap */
+/* 0 1 8 1 5 2 8 0 */
+/* 0 + 00000 + 011 + 000 + 00 + 01 + 01 + 01 + 001 + 0 + 1 + 0 + 0 + 00000 */
+/* Walnut fpga pb7cr */
+/* 0xF0318000 */
+/* */
diff --git a/board/exbitgen/u-boot.lds b/board/exbitgen/u-boot.lds
new file mode 100644
index 0000000..863a7e4
--- /dev/null
+++ b/board/exbitgen/u-boot.lds
@@ -0,0 +1,144 @@
+/*
+ * (C) Copyright 2000
+ * 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);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ .resetvec 0xFFFFFFFC :
+ {
+ *(.resetvec)
+ } = 0xffff
+
+ /* 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)
+ board/exbitgen/init.o (.text)
+ cpu/ppc4xx/kgdb.o (.text)
+ cpu/ppc4xx/traps.o (.text)
+ cpu/ppc4xx/interrupts.o (.text)
+ cpu/ppc4xx/serial.o (.text)
+ cpu/ppc4xx/cpu_init.o (.text)
+ cpu/ppc4xx/speed.o (.text)
+ common/dlmalloc.o (.text)
+ lib_generic/crc32.o (.text)
+ lib_ppc/extable.o (.text)
+ lib_generic/zlib.o (.text)
+
+/* . = env_offset;*/
+ common/environment.o(.text)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ }
+ .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 = .);
+
+ __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)
+ . = ALIGN(4);
+ *(.bss)
+ *(COMMON)
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
diff --git a/board/lwmon/lwmon.c b/board/lwmon/lwmon.c
index b359ec7..91aa58c 100644
--- a/board/lwmon/lwmon.c
+++ b/board/lwmon/lwmon.c
@@ -513,6 +513,9 @@
gd->kbd_status = 0;
+ /* Forced by PIC. Delays <= 175us loose */
+ udelay(1000);
+
/* Read initial keyboard error code */
val = KEYBD_CMD_READ_STATUS;
i2c_write (kbd_addr, 0, 0, &val, 1);
diff --git a/board/sl8245/Makefile b/board/sl8245/Makefile
new file mode 100644
index 0000000..da60318
--- /dev/null
+++ b/board/sl8245/Makefile
@@ -0,0 +1,40 @@
+#
+# (C) Copyright 2001 - 2003
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = lib$(BOARD).a
+
+OBJS = $(BOARD).o flash.o
+
+$(LIB): .depend $(OBJS)
+ $(AR) crv $@ $^
+
+#########################################################################
+
+.depend: Makefile $(OBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/sl8245/config.mk b/board/sl8245/config.mk
new file mode 100644
index 0000000..299fc6c
--- /dev/null
+++ b/board/sl8245/config.mk
@@ -0,0 +1,30 @@
+#
+# (C) Copyright 2001 - 2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+#
+# SL8245 board
+#
+
+TEXT_BASE = 0xFFF00000
+
+PLATFORM_CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE)
diff --git a/board/sl8245/flash.c b/board/sl8245/flash.c
new file mode 100644
index 0000000..553dc98
--- /dev/null
+++ b/board/sl8245/flash.c
@@ -0,0 +1,488 @@
+/*
+ * (C) Copyright 2001 - 2003
+ * 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
+ */
+
+#include <common.h>
+#include <mpc824x.h>
+#include <asm/processor.h>
+
+#if defined(CFG_ENV_IS_IN_FLASH)
+# ifndef CFG_ENV_ADDR
+# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
+# endif
+# ifndef CFG_ENV_SIZE
+# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
+# endif
+# ifndef CFG_ENV_SECT_SIZE
+# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE
+# endif
+#endif
+
+#define FLASH_BANK_SIZE 0x800000
+#define MAIN_SECT_SIZE 0x40000
+#define PARAM_SECT1_SIZE 0x20000
+#define PARAM_SECT23_SIZE 0x8000
+#define PARAM_SECT4_SIZE 0x10000
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+static int write_data (flash_info_t *info, ulong dest, ulong *data);
+static void write_via_fpu(vu_long *addr, ulong *data);
+static __inline__ unsigned long get_msr(void);
+static __inline__ void set_msr(unsigned long msr);
+
+/*---------------------------------------------------------------------*/
+#undef DEBUG_FLASH
+
+/*---------------------------------------------------------------------*/
+#ifdef DEBUG_FLASH
+#define DEBUGF(fmt,args...) printf(fmt ,##args)
+#else
+#define DEBUGF(fmt,args...)
+#endif
+/*---------------------------------------------------------------------*/
+
+#define __align__ __attribute__ ((aligned (8)))
+static __align__ ulong precmd0[2] = { 0x00aa00aa, 0x00aa00aa };
+static __align__ ulong precmd1[2] = { 0x00550055, 0x00550055 };
+static __align__ ulong cmdid[2] = { 0x00900090, 0x00900090 };
+static __align__ ulong cmderase[2] = { 0x00800080, 0x00800080 };
+static __align__ ulong cmdersusp[2] = { 0x00b000b0, 0x00b000b0 };
+static __align__ ulong cmdsecter[2] = { 0x00300030, 0x00300030 };
+static __align__ ulong cmdprog[2] = { 0x00a000a0, 0x00a000a0 };
+static __align__ ulong cmdres[2] = { 0x00f000f0, 0x00f000f0 };
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+ int i, j;
+ ulong size = 0;
+
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+ vu_long *addr = (vu_long *) (CFG_FLASH_BASE + i * FLASH_BANK_SIZE);
+
+ write_via_fpu (&addr[0xaaa], precmd0);
+ write_via_fpu (&addr[0x554], precmd1);
+ write_via_fpu (&addr[0xaaa], cmdid);
+
+ DEBUGF ("Flash bank # %d:\n"
+ "\tManuf. ID @ 0x%08lX: 0x%08lX\n"
+ "\tDevice ID @ 0x%08lX: 0x%08lX\n",
+ i,
+ (ulong) (&addr[0]), addr[0],
+ (ulong) (&addr[2]), addr[2]);
+
+ if ((addr[0] == addr[1]) && (addr[0] == AMD_MANUFACT) &&
+ (addr[2] == addr[3]) && (addr[2] == AMD_ID_LV160T)) {
+ flash_info[i].flash_id = (FLASH_MAN_AMD & FLASH_VENDMASK) |
+ (FLASH_AM160T & FLASH_TYPEMASK);
+ } else {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ write_via_fpu (addr, cmdres);
+ goto Done;
+ }
+
+ DEBUGF ("flash_id = 0x%08lX\n", flash_info[i].flash_id);
+
+ write_via_fpu (addr, cmdres);
+
+ flash_info[i].size = FLASH_BANK_SIZE;
+ flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+ memset (flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+ for (j = 0; j < 32; j++) {
+ flash_info[i].start[j] = CFG_FLASH_BASE +
+ i * FLASH_BANK_SIZE + j * MAIN_SECT_SIZE;
+ }
+ flash_info[i].start[32] =
+ flash_info[i].start[31] + PARAM_SECT1_SIZE;
+ flash_info[i].start[33] =
+ flash_info[i].start[32] + PARAM_SECT23_SIZE;
+ flash_info[i].start[34] =
+ flash_info[i].start[33] + PARAM_SECT23_SIZE;
+ size += flash_info[i].size;
+ }
+
+ /* Protect monitor and environment sectors
+ */
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
+#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + FLASH_BANK_SIZE
+ flash_protect ( FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + monitor_flash_len - 1,
+ &flash_info[1]);
+#else
+ flash_protect ( FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + monitor_flash_len - 1,
+ &flash_info[0]);
+#endif
+#endif
+
+#if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
+#if CFG_ENV_ADDR >= CFG_FLASH_BASE + FLASH_BANK_SIZE
+ flash_protect ( FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[1]);
+#else
+ flash_protect ( FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
+#endif
+#endif
+
+Done:
+ return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t * info)
+{
+ int i;
+
+ switch ((i = info->flash_id & FLASH_VENDMASK)) {
+ case (FLASH_MAN_AMD & FLASH_VENDMASK):
+ printf ("Intel: ");
+ break;
+ default:
+ printf ("Unknown Vendor 0x%04x ", i);
+ break;
+ }
+
+ switch ((i = info->flash_id & FLASH_TYPEMASK)) {
+ case (FLASH_AM160T & FLASH_TYPEMASK):
+ printf ("AM29LV160BT (16Mbit)\n");
+ break;
+ default:
+ printf ("Unknown Chip Type 0x%04x\n", i);
+ goto Done;
+ break;
+ }
+
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
+
+ printf (" Sector Start Addresses:");
+ for (i = 0; i < info->sector_count; i++) {
+ if ((i % 5) == 0) {
+ printf ("\n ");
+ }
+ printf (" %08lX%s", info->start[i],
+ info->protect[i] ? " (RO)" : " ");
+ }
+ printf ("\n");
+
+ Done:
+ return;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+ int flag, prot, sect;
+ ulong start, now, last;
+
+ DEBUGF ("Erase flash bank %d sect %d ... %d\n",
+ info - &flash_info[0], s_first, s_last);
+
+ if ((s_first < 0) || (s_first > s_last)) {
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("- missing\n");
+ } else {
+ printf ("- no sectors to erase\n");
+ }
+ return 1;
+ }
+
+ if ((info->flash_id & FLASH_VENDMASK) !=
+ (FLASH_MAN_AMD & FLASH_VENDMASK)) {
+ printf ("Can erase only AMD flash types - aborted\n");
+ return 1;
+ }
+
+ prot = 0;
+ for (sect = s_first; sect <= s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
+ }
+ }
+
+ if (prot) {
+ printf ("- Warning: %d protected sectors will not be erased!\n",
+ prot);
+ } else {
+ printf ("\n");
+ }
+
+ start = get_timer (0);
+ last = start;
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect <= s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ vu_long *addr = (vu_long *) (info->start[sect]);
+
+ DEBUGF ("Erase sect %d @ 0x%08lX\n", sect, (ulong) addr);
+
+ /* Disable interrupts which might cause a timeout
+ * here.
+ */
+ flag = disable_interrupts ();
+
+ write_via_fpu (&addr[0xaaa], precmd0);
+ write_via_fpu (&addr[0x554], precmd1);
+ write_via_fpu (&addr[0xaaa], cmderase);
+ write_via_fpu (&addr[0xaaa], precmd0);
+ write_via_fpu (&addr[0x554], precmd1);
+ write_via_fpu (&addr[0xaaa], cmdsecter);
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts ();
+
+ /* wait at least 80us - let's wait 1 ms */
+ udelay (1000);
+
+ while (((addr[0] & 0x00800080) != 0x00800080) ||
+ ((addr[1] & 0x00800080) != 0x00800080)) {
+ if ((now = get_timer (start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ write_via_fpu (addr, cmdersusp);
+ write_via_fpu (addr, cmdres);
+ return 1;
+ }
+
+ /* show that we're waiting */
+ if ((now - last) > 1000) { /* every second */
+ putc ('.');
+ last = now;
+ }
+ }
+
+ write_via_fpu (addr, cmdres);
+ }
+ }
+ printf (" done\n");
+ return 0;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ * 4 - Flash not identified
+ */
+
+#define FLASH_WIDTH 8 /* flash bus width in bytes */
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+ ulong wp, cp, msr;
+ int l, rc, i;
+ ulong data[2];
+ ulong *datah = &data[0];
+ ulong *datal = &data[1];
+
+ DEBUGF ("Flash write_buff: @ 0x%08lx, src 0x%08lx len %ld\n",
+ addr, (ulong) src, cnt);
+
+ if (info->flash_id == FLASH_UNKNOWN) {
+ return 4;
+ }
+
+ msr = get_msr ();
+ set_msr (msr | MSR_FP);
+
+ wp = (addr & ~(FLASH_WIDTH - 1)); /* get lower aligned address */
+
+ /*
+ * handle unaligned start bytes
+ */
+ if ((l = addr - wp) != 0) {
+ *datah = *datal = 0;
+
+ for (i = 0, cp = wp; i < l; i++, cp++) {
+ if (i >= 4) {
+ *datah = (*datah << 8) | ((*datal & 0xFF000000) >> 24);
+ }
+
+ *datal = (*datal << 8) | (*(uchar *) cp);
+ }
+ for (; i < FLASH_WIDTH && cnt > 0; ++i) {
+ char tmp;
+
+ tmp = *src;
+
+ src++;
+
+ if (i >= 4) {
+ *datah = (*datah << 8) | ((*datal & 0xFF000000) >> 24);
+ }
+
+ *datal = (*datal << 8) | tmp;
+
+ --cnt;
+ ++cp;
+ }
+
+ for (; cnt == 0 && i < FLASH_WIDTH; ++i, ++cp) {
+ if (i >= 4) {
+ *datah = (*datah << 8) | ((*datal & 0xFF000000) >> 24);
+ }
+
+ *datal = (*datah << 8) | (*(uchar *) cp);
+ }
+
+ if ((rc = write_data (info, wp, data)) != 0) {
+ set_msr (msr);
+ return (rc);
+ }
+
+ wp += FLASH_WIDTH;
+ }
+
+ /*
+ * handle FLASH_WIDTH aligned part
+ */
+ while (cnt >= FLASH_WIDTH) {
+ *datah = *(ulong *) src;
+ *datal = *(ulong *) (src + 4);
+ if ((rc = write_data (info, wp, data)) != 0) {
+ set_msr (msr);
+ return (rc);
+ }
+ wp += FLASH_WIDTH;
+ cnt -= FLASH_WIDTH;
+ src += FLASH_WIDTH;
+ }
+
+ if (cnt == 0) {
+ set_msr (msr);
+ return (0);
+ }
+
+ /*
+ * handle unaligned tail bytes
+ */
+ *datah = *datal = 0;
+ for (i = 0, cp = wp; i < FLASH_WIDTH && cnt > 0; ++i, ++cp) {
+ char tmp;
+
+ tmp = *src;
+
+ src++;
+
+ if (i >= 4) {
+ *datah = (*datah << 8) | ((*datal & 0xFF000000) >> 24);
+ }
+
+ *datal = (*datal << 8) | tmp;
+
+ --cnt;
+ }
+
+ for (; i < FLASH_WIDTH; ++i, ++cp) {
+ if (i >= 4) {
+ *datah = (*datah << 8) | ((*datal & 0xFF000000) >> 24);
+ }
+
+ *datal = (*datal << 8) | (*(uchar *) cp);
+ }
+
+ rc = write_data (info, wp, data);
+ set_msr (msr);
+
+ return (rc);
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_data (flash_info_t * info, ulong dest, ulong * data)
+{
+ vu_long *chip = (vu_long *) (info->start[0]);
+ vu_long *addr = (vu_long *) dest;
+ ulong start;
+ int flag;
+
+ /* Check if Flash is (sufficiently) erased */
+ if (((addr[0] & data[0]) != data[0]) ||
+ ((addr[1] & data[1]) != data[1])) {
+ return (2);
+ }
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts ();
+
+ write_via_fpu (&chip[0xaaa], precmd0);
+ write_via_fpu (&chip[0x554], precmd1);
+ write_via_fpu (&chip[0xaaa], cmdprog);
+ write_via_fpu (addr, data);
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts ();
+
+ start = get_timer (0);
+
+ while (((addr[0] & 0x00800080) != (data[0] & 0x00800080)) ||
+ ((addr[1] & 0x00800080) != (data[1] & 0x00800080))) {
+ if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
+ write_via_fpu (chip, cmdres);
+ return (1);
+ }
+ }
+
+ write_via_fpu (chip, cmdres);
+
+ return (0);
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void write_via_fpu (vu_long * addr, ulong * data)
+{
+ __asm__ __volatile__ ("lfd 1, 0(%0)"::"r" (data));
+ __asm__ __volatile__ ("stfd 1, 0(%0)"::"r" (addr));
+}
+
+/*-----------------------------------------------------------------------
+ */
+static __inline__ unsigned long get_msr (void)
+{
+ unsigned long msr;
+
+ __asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
+
+ return msr;
+}
+
+static __inline__ void set_msr (unsigned long msr)
+{
+ __asm__ __volatile__ ("mtmsr %0"::"r" (msr));
+}
diff --git a/board/sl8245/sl8245.c b/board/sl8245/sl8245.c
new file mode 100644
index 0000000..1a30b4c
--- /dev/null
+++ b/board/sl8245/sl8245.c
@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2003
+ * 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
+ */
+
+#include <common.h>
+#include <mpc824x.h>
+
+int checkboard (void)
+{
+ ulong busfreq = get_bus_freq(0);
+ char buf[32];
+
+ printf("Board: SL8245, local bus @ %s MHz\n", strmhz(buf, busfreq));
+ return 0;
+}
+
+long int initdram (int board_type)
+{
+#ifndef CFG_RAMBOOT
+ int i, cnt;
+ volatile uchar * base= CFG_SDRAM_BASE;
+ volatile ulong * addr;
+ ulong save[32];
+ ulong val, ret = 0;
+
+ for (i=0, cnt=(CFG_MAX_RAM_SIZE / sizeof(long)) >> 1; cnt > 0; cnt >>= 1) {
+ addr = (volatile ulong *)base + cnt;
+ save[i++] = *addr;
+ *addr = ~cnt;
+ }
+
+ addr = (volatile ulong *)base;
+ save[i] = *addr;
+ *addr = 0;
+
+ if (*addr != 0) {
+ *addr = save[i];
+ goto Done;
+ }
+
+ for (cnt = 1; cnt < CFG_MAX_RAM_SIZE / sizeof(long); cnt <<= 1) {
+ addr = (volatile ulong *)base + cnt;
+ val = *addr;
+ *addr = save[--i];
+ if (val != ~cnt) {
+ ulong new_bank0_end = cnt * sizeof(long) - 1;
+ ulong mear1 = mpc824x_mpc107_getreg(MEAR1);
+ ulong emear1 = mpc824x_mpc107_getreg(EMEAR1);
+ mear1 = (mear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_ADDR_SHIFT);
+ emear1 = (emear1 & 0xFFFFFF00) |
+ ((new_bank0_end & MICR_ADDR_MASK) >> MICR_EADDR_SHIFT);
+ mpc824x_mpc107_setreg(MEAR1, mear1);
+ mpc824x_mpc107_setreg(EMEAR1, emear1);
+
+ ret = cnt * sizeof(long);
+ goto Done;
+ }
+ }
+
+ ret = CFG_MAX_RAM_SIZE;
+Done:
+ return ret;
+#else
+ return CFG_MAX_RAM_SIZE;
+#endif
+}
diff --git a/board/sl8245/u-boot.lds b/board/sl8245/u-boot.lds
new file mode 100644
index 0000000..627a53b
--- /dev/null
+++ b/board/sl8245/u-boot.lds
@@ -0,0 +1,128 @@
+/*
+ * (C) Copyright 2001
+ * 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);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+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 :
+ {
+ cpu/mpc824x/start.o (.text)
+ lib_ppc/board.o (.text)
+ lib_ppc/ppcstring.o (.text)
+ lib_generic/vsprintf.o (.text)
+ lib_generic/crc32.o (.text)
+ lib_generic/zlib.o (.text)
+
+ . = DEFINED(env_offset) ? env_offset : .;
+ common/environment.o (.text)
+
+ *(.text)
+
+ *(.fixup)
+ *(.got1)
+ . = ALIGN(16);
+ *(.rodata)
+ *(.rodata1)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x0FFF) & 0xFFFFF000;
+ _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 = .);
+
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(4096);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(4096);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+
+ _end = . ;
+ PROVIDE (end = .);
+}
+