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author | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
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committer | H. Nikolaus Schaller <hns@goldelico.com> | 2012-03-26 20:55:28 +0200 |
commit | 92988a21ad4c4c9504295ccb580c9f806134471b (patch) | |
tree | 5effc9f14170112450de05c67dafbe8d5034d595 /u-boot/board/o2dnt | |
parent | ca2b506783b676c95762c54ea24dcfdaae1947c9 (diff) | |
download | bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.zip bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.gz bootable_bootloader_goldelico_gta04-92988a21ad4c4c9504295ccb580c9f806134471b.tar.bz2 |
added boot script files to repository
Diffstat (limited to 'u-boot/board/o2dnt')
-rw-r--r-- | u-boot/board/o2dnt/Makefile | 51 | ||||
-rw-r--r-- | u-boot/board/o2dnt/flash.c | 587 | ||||
-rw-r--r-- | u-boot/board/o2dnt/o2dnt.c | 189 |
3 files changed, 827 insertions, 0 deletions
diff --git a/u-boot/board/o2dnt/Makefile b/u-boot/board/o2dnt/Makefile new file mode 100644 index 0000000..3c99739 --- /dev/null +++ b/u-boot/board/o2dnt/Makefile @@ -0,0 +1,51 @@ + +# +# (C) Copyright 2005-2006 +# 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 = $(obj)lib$(BOARD).o + +COBJS := $(BOARD).o flash.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(call cmd_link_o_target, $(OBJS)) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/u-boot/board/o2dnt/flash.c b/u-boot/board/o2dnt/flash.c new file mode 100644 index 0000000..9f30880 --- /dev/null +++ b/u-boot/board/o2dnt/flash.c @@ -0,0 +1,587 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * flash_real_protect() routine based on boards/alaska/flash.c + * (C) Copyright 2001 + * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net + * + * 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> + +/* Intel-compatible flash commands */ +#define INTEL_ERASE 0x20 +#define INTEL_PROGRAM 0x40 +#define INTEL_CLEAR 0x50 +#define INTEL_LOCKBIT 0x60 +#define INTEL_PROTECT 0x01 +#define INTEL_STATUS 0x70 +#define INTEL_READID 0x90 +#define INTEL_READID 0x90 +#define INTEL_SUSPEND 0xB0 +#define INTEL_CONFIRM 0xD0 +#define INTEL_RESET 0xFF + +/* Intel-compatible flash status bits */ +#define INTEL_FINISHED 0x80 +#define INTEL_OK 0x80 + +typedef unsigned char FLASH_PORT_WIDTH; +typedef volatile unsigned char FLASH_PORT_WIDTHV; +#define FPW FLASH_PORT_WIDTH +#define FPWV FLASH_PORT_WIDTHV +#define FLASH_ID_MASK 0xFF + +#define ORMASK(size) ((-size) & OR_AM_MSK) + +#define FLASH_CYCLE1 0x0555 +#define FLASH_CYCLE2 0x02aa + +flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +/*----------------------------------------------------------------------- + * Functions + */ +static ulong flash_get_size(FPWV *addr, flash_info_t *info); +static void flash_reset(flash_info_t *info); +static flash_info_t *flash_get_info(ulong base); +static int write_data (flash_info_t *info, FPWV *dest, FPW data); /* O2D */ +static void flash_sync_real_protect (flash_info_t * info); +static unsigned char intel_sector_protected (flash_info_t *info, ushort sector); + +/*----------------------------------------------------------------------- + * flash_init() + * + * sets up flash_info and returns size of FLASH (bytes) + */ +unsigned long flash_init (void) +{ + unsigned long size = 0; + int i; + extern void flash_preinit(void); + extern void flash_afterinit(ulong); + + flash_preinit(); + + /* Init: no FLASHes known */ + for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) { + memset(&flash_info[i], 0, sizeof(flash_info_t)); + flash_info[i].flash_id = FLASH_UNKNOWN; + } + + /* Query flash chip */ + flash_info[0].size = + flash_get_size((FPW *)CONFIG_SYS_FLASH_BASE, &flash_info[0]); + size += flash_info[0].size; + + /* get the h/w and s/w protection status in sync */ + flash_sync_real_protect(&flash_info[0]); + +#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE + /* monitor protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CONFIG_SYS_MONITOR_BASE, + CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1, + flash_get_info(CONFIG_SYS_MONITOR_BASE)); +#endif + +#ifdef CONFIG_ENV_IS_IN_FLASH + /* ENV protection ON by default */ + flash_protect(FLAG_PROTECT_SET, + CONFIG_ENV_ADDR, + CONFIG_ENV_ADDR+CONFIG_ENV_SIZE-1, + flash_get_info(CONFIG_ENV_ADDR)); +#endif + + + flash_afterinit(size); + return (size ? size : 1); +} + +/*----------------------------------------------------------------------- + */ +static void flash_reset(flash_info_t *info) +{ + FPWV *base = (FPWV *)(info->start[0]); + + /* Put FLASH back in read mode */ + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) + *base = (FPW) INTEL_RESET; /* Intel Read Mode */ +} + +/*----------------------------------------------------------------------- + */ + +static flash_info_t *flash_get_info(ulong base) +{ + int i; + flash_info_t * info; + + for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i ++) { + info = & flash_info[i]; + if (info->size && + info->start[0] <= base && + base <= info->start[0] + info->size - 1) + break; + } + + return (i == CONFIG_SYS_MAX_FLASH_BANKS ? 0 : info); +} + +/*----------------------------------------------------------------------- + */ + +void flash_print_info (flash_info_t *info) +{ + int i; + uchar *boottype; + uchar *bootletter; + char *fmt; + uchar botbootletter[] = "B"; + uchar topbootletter[] = "T"; + uchar botboottype[] = "bottom boot sector"; + uchar topboottype[] = "top boot sector"; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: + printf ("INTEL "); + break; + default: + printf ("Unknown Vendor "); + break; + } + + /* check for top or bottom boot, if it applies */ + if (info->flash_id & FLASH_BTYPE) { + boottype = botboottype; + bootletter = botbootletter; + } else { + boottype = topboottype; + bootletter = topbootletter; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F128J3A: + fmt = "28F128J3 (128 Mbit, uniform sectors)\n"; + break; + default: + fmt = "Unknown Chip Type\n"; + break; + } + + printf (fmt, bootletter, boottype); + 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"); +} + +/*----------------------------------------------------------------------- + */ + +/* + * The following code cannot be run from FLASH! + */ +ulong flash_get_size (FPWV *addr, flash_info_t *info) +{ + int i; + + /* Write auto select command: read Manufacturer ID */ + /* Write auto select command sequence and test FLASH answer */ + addr[FLASH_CYCLE1] = (FPW) INTEL_READID; /* selects Intel or AMD */ + + /* The manufacturer codes are only 1 byte, so just use 1 byte. + * This works for any bus width and any FLASH device width. + */ + udelay(100); + switch (addr[0] & 0xff) { + case (uchar)INTEL_MANUFACT: + info->flash_id = FLASH_MAN_INTEL; + break; + default: + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + break; + } + + /* Strataflash is configurable to 8/16bit Bus, + * but the Query-Structure is Word-orientated */ + if (info->flash_id != FLASH_UNKNOWN) { + switch ((FPW)addr[2]) { + case (FPW)INTEL_ID_28F128J3: + info->flash_id += FLASH_28F128J3A; + info->sector_count = 128; + info->size = 0x01000000; + for( i = 0; i < info->sector_count; i++ ) + info->start[i] = (ulong)addr + (i * 0x20000); + break; /* => Intel Strataflash 16MB */ + default: + printf("Flash_id != %xd\n", (FPW)addr[2]); + info->flash_id = FLASH_UNKNOWN; + info->sector_count = 0; + info->size = 0; + return (0); /* => no or unknown flash */ + } + } + + /* Put FLASH back in read mode */ + flash_reset(info); + + return (info->size); +} + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + FPWV *addr; + int flag, prot, sect; + ulong start, now, last; + int rcode = 0; + + 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; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F128J3A: + break; + case FLASH_UNKNOWN: + default: + printf ("Can't erase unknown flash type %08lx - aborted\n", + info->flash_id); + 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!", + prot); + + printf ("\n"); + last = get_timer(0); + + /* Start erase on unprotected sectors */ + for (sect = s_first; sect <= s_last && rcode == 0; sect++) { + + if (info->protect[sect] != 0) /* protected, skip it */ + continue; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + addr = (FPWV *)(info->start[sect]); + *addr = (FPW) INTEL_CLEAR; /* clear status register */ + *addr = (FPW) INTEL_ERASE; /* erase setup */ + *addr = (FPW) INTEL_CONFIRM; /* erase confirm */ + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + start = get_timer(0); + + /* wait at least 80us for Intel - let's wait 1 ms */ + udelay (1000); + + while ((*addr & (FPW) INTEL_FINISHED) != (FPW) INTEL_FINISHED) { + if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + *addr = (FPW) INTEL_SUSPEND;/* suspend erase */ + flash_reset(info); /* reset to read mode */ + rcode = 1; /* failed */ + break; + } + + /* show that we're waiting */ + if ((get_timer(last)) > CONFIG_SYS_HZ) { /* every second */ + putc ('.'); + last = get_timer(0); + } + } + + flash_reset(info); /* reset to read mode */ + } + + printf (" done\n"); + return rcode; +} + +/*----------------------------------------------------------------------- + * 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) +{ + FPW data = 0; /* 16 or 32 bit word, matches flash bus width on MPC8XX */ + int bytes; /* number of bytes to program in current word */ + int left; /* number of bytes left to program */ + int i, res; + + for (left = cnt, res = 0; + left > 0 && res == 0; + addr += sizeof(data), left -= sizeof(data) - bytes) { + + bytes = addr & (sizeof(data) - 1); + addr &= ~(sizeof(data) - 1); + + /* combine source and destination data so can program + * an entire word of 16 or 32 bits */ + for (i = 0; i < sizeof(data); i++) { + data <<= 8; + if (i < bytes || i - bytes >= left ) + data += *((uchar *)addr + i); + else + data += *src++; + } + + /* write one word to the flash */ + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_INTEL: + res = write_data(info, (FPWV *)addr, data); + break; + default: + /* unknown flash type, error! */ + printf ("missing or unknown FLASH type\n"); + res = 1; /* not really a timeout, but gives error */ + break; + } + } + + return (res); +} + +/*----------------------------------------------------------------------- + * Write a word or halfword to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +static int write_data (flash_info_t *info, FPWV *dest, FPW data) +{ + FPWV *addr = dest; + ulong status; + ulong start; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*addr & data) != data) { + printf ("not erased at %08lx (%x)\n", (ulong) addr, *addr); + return (2); + } + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + *addr = (FPW) INTEL_PROGRAM; /* write setup */ + *addr = data; + + /* arm simple, non interrupt dependent timer */ + start = get_timer(0); + + /* wait while polling the status register */ + while (((status = *addr) & (FPW) INTEL_FINISHED) != (FPW) INTEL_FINISHED) { + if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { + *addr = (FPW) INTEL_RESET; /* restore read mode */ + return (1); + } + } + + *addr = (FPW) INTEL_RESET; /* restore read mode */ + if (flag) + enable_interrupts(); + + return (0); +} + + +/*----------------------------------------------------------------------- + * Set/Clear sector's lock bit, returns: + * 0 - OK + * 1 - Error (timeout, voltage problems, etc.) + */ +int flash_real_protect (flash_info_t * info, long sector, int prot) +{ + ulong start; + int i; + int rc = 0; + FPWV *addr = (FPWV *) (info->start[sector]); + int flag = disable_interrupts (); + + *addr = INTEL_CLEAR; /* Clear status register */ + if (prot) { /* Set sector lock bit */ + *addr = INTEL_LOCKBIT; /* Sector lock bit */ + *addr = INTEL_PROTECT; /* set */ + } else { /* Clear sector lock bit */ + *addr = INTEL_LOCKBIT; /* All sectors lock bits */ + *addr = INTEL_CONFIRM; /* clear */ + } + + start = get_timer (0); + + while ((*addr & INTEL_FINISHED) != INTEL_FINISHED) { + if (get_timer (start) > CONFIG_SYS_FLASH_UNLOCK_TOUT) { + printf ("Flash lock bit operation timed out\n"); + rc = 1; + break; + } + } + + if (*addr != INTEL_OK) { + printf ("Flash lock bit operation failed at %08X, CSR=%08X\n", + (uint) addr, (uint) * addr); + rc = 1; + } + + if (!rc) + info->protect[sector] = prot; + + /* + * Clear lock bit command clears all sectors lock bits, so + * we have to restore lock bits of protected sectors. + */ + if (!prot) { + for (i = 0; i < info->sector_count; i++) { + if (info->protect[i]) { + start = get_timer (0); + addr = (FPWV *) (info->start[i]); + *addr = INTEL_LOCKBIT; /* Sector lock bit */ + *addr = INTEL_PROTECT; /* set */ + while ((*addr & INTEL_FINISHED) != + INTEL_FINISHED) { + if (get_timer (start) > + CONFIG_SYS_FLASH_UNLOCK_TOUT) { + printf ("Flash lock bit operation timed out\n"); + rc = 1; + break; + } + } + } + } + } + + if (flag) + enable_interrupts (); + + *addr = INTEL_RESET; /* Reset to read array mode */ + + return rc; +} + + +/* + * This function gets the u-boot flash sector protection status + * (flash_info_t.protect[]) in sync with the sector protection + * status stored in hardware. + */ +static void flash_sync_real_protect (flash_info_t * info) +{ + int i; + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_28F128J3A: + for (i = 0; i < info->sector_count; ++i) { + info->protect[i] = intel_sector_protected(info, i); + } + break; + default: + /* no h/w protect support */ + break; + } +} + + +/* + * checks if "sector" in bank "info" is protected. Should work on intel + * strata flash chips 28FxxxJ3x in 8-bit mode. + * Returns 1 if sector is protected (or timed-out while trying to read + * protection status), 0 if it is not. + */ +static unsigned char intel_sector_protected (flash_info_t *info, ushort sector) +{ + FPWV *addr; + FPWV *lock_conf_addr; + ulong start; + unsigned char ret; + + /* + * first, wait for the WSM to be finished. The rationale for + * waiting for the WSM to become idle for at most + * CONFIG_SYS_FLASH_ERASE_TOUT is as follows. The WSM can be busy + * because of: (1) erase, (2) program or (3) lock bit + * configuration. So we just wait for the longest timeout of + * the (1)-(3), i.e. the erase timeout. + */ + + /* wait at least 35ns (W12) before issuing Read Status Register */ + udelay(1); + addr = (FPWV *) info->start[sector]; + *addr = (FPW) INTEL_STATUS; + + start = get_timer (0); + while ((*addr & (FPW) INTEL_FINISHED) != (FPW) INTEL_FINISHED) { + if (get_timer (start) > CONFIG_SYS_FLASH_ERASE_TOUT) { + *addr = (FPW) INTEL_RESET; /* restore read mode */ + printf("WSM busy too long, can't get prot status\n"); + return 1; + } + } + + /* issue the Read Identifier Codes command */ + *addr = (FPW) INTEL_READID; + + /* wait at least 35ns (W12) before reading */ + udelay(1); + + /* Intel example code uses offset of 4 for 8-bit flash */ + lock_conf_addr = (FPWV *) info->start[sector] + 4; + ret = (*lock_conf_addr & (FPW) INTEL_PROTECT) ? 1 : 0; + + /* put flash back in read mode */ + *addr = (FPW) INTEL_RESET; + + return ret; +} diff --git a/u-boot/board/o2dnt/o2dnt.c b/u-boot/board/o2dnt/o2dnt.c new file mode 100644 index 0000000..c72a741 --- /dev/null +++ b/u-boot/board/o2dnt/o2dnt.c @@ -0,0 +1,189 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2004 + * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. + * + * 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 <mpc5xxx.h> +#include <pci.h> +#include <netdev.h> + +#define SDRAM_MODE 0x00CD0000 +#define SDRAM_CONTROL 0x504F0000 +#define SDRAM_CONFIG1 0xD2322800 +#define SDRAM_CONFIG2 0x8AD70000 + +static void sdram_start (int hi_addr) +{ + long hi_addr_bit = hi_addr ? 0x01000000 : 0; + + /* unlock mode register */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit; + __asm__ volatile ("sync"); + + /* precharge all banks */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; + __asm__ volatile ("sync"); + + /* precharge all banks */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; + __asm__ volatile ("sync"); + + /* auto refresh */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit; + __asm__ volatile ("sync"); + + /* set mode register */ + *(vu_long *)MPC5XXX_SDRAM_MODE = SDRAM_MODE; + __asm__ volatile ("sync"); + + /* normal operation */ + *(vu_long *)MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit; + __asm__ volatile ("sync"); +} + +/* + * ATTENTION: Although partially referenced initdram does NOT make real use + * use of CONFIG_SYS_SDRAM_BASE. The code does not work if CONFIG_SYS_SDRAM_BASE + * is something else than 0x00000000. + */ +phys_size_t initdram (int board_type) +{ + ulong dramsize = 0; + ulong dramsize2 = 0; + ulong test1, test2; + + /* setup SDRAM chip selects */ + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */ + *(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */ + __asm__ volatile ("sync"); + + /* setup config registers */ + *(vu_long *)MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; + *(vu_long *)MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; + __asm__ volatile ("sync"); + + /* find RAM size using SDRAM CS0 only */ + sdram_start(0); + test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); + sdram_start(1); + test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); + if (test1 > test2) { + sdram_start(0); + dramsize = test1; + } else { + dramsize = test2; + } + + /* memory smaller than 1MB is impossible */ + if (dramsize < (1 << 20)) { + dramsize = 0; + } + + /* set SDRAM CS0 size according to the amount of RAM found */ + if (dramsize > 0) + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1; + else + *(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */ + + /* let SDRAM CS1 start right after CS0 */ + *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */ + + /* find RAM size using SDRAM CS1 only */ + if (!dramsize) + sdram_start(0); + + test2 = test1 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000); + + if (!dramsize) { + sdram_start(1); + test2 = get_ram_size((long *)(CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000); + } + + if (test1 > test2) { + sdram_start(0); + dramsize2 = test1; + } else { + dramsize2 = test2; + } + + /* memory smaller than 1MB is impossible */ + if (dramsize2 < (1 << 20)) + dramsize2 = 0; + + /* set SDRAM CS1 size according to the amount of RAM found */ + if (dramsize2 > 0) { + *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1); + } else { + *(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */ + } + + return dramsize + dramsize2; +} + +int checkboard (void) +{ + puts ("Board: O2DNT\n"); + return 0; +} + +void flash_preinit(void) +{ + /* + * Now, when we are in RAM, enable flash write + * access for detection process. + * Note that CS_BOOT cannot be cleared when + * executing in flash. + */ + *(vu_long *)MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ +} + +void flash_afterinit(ulong size) +{ + if (size == 0x800000) { /* adjust mapping */ + *(vu_long *)MPC5XXX_BOOTCS_START = *(vu_long *)MPC5XXX_CS0_START = + START_REG(CONFIG_SYS_BOOTCS_START | size); + + *(vu_long *)MPC5XXX_BOOTCS_STOP = *(vu_long *)MPC5XXX_CS0_STOP = + STOP_REG(CONFIG_SYS_BOOTCS_START | size, size); + } +} + +#ifdef CONFIG_PCI +static struct pci_controller hose; + +extern void pci_mpc5xxx_init(struct pci_controller *); + +void pci_init_board(void) +{ + pci_mpc5xxx_init(&hose); +} +#endif + +int board_eth_init(bd_t *bis) +{ + cpu_eth_init(bis); /* Built in FEC comes first */ + return pci_eth_init(bis); +} |