diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/jse/Makefile | 44 | ||||
| -rw-r--r-- | board/jse/README.txt | 48 | ||||
| -rw-r--r-- | board/jse/config.mk | 24 | ||||
| -rw-r--r-- | board/jse/flash.c | 671 | ||||
| -rw-r--r-- | board/jse/host_bridge.c | 89 | ||||
| -rw-r--r-- | board/jse/init.S | 105 | ||||
| -rw-r--r-- | board/jse/jse.c | 160 | ||||
| -rw-r--r-- | board/jse/jse_priv.h | 25 | ||||
| -rw-r--r-- | board/jse/sdram.c | 182 | ||||
| -rw-r--r-- | board/jse/u-boot.lds | 140 |
10 files changed, 1488 insertions, 0 deletions
diff --git a/board/jse/Makefile b/board/jse/Makefile new file mode 100644 index 000000000..0da27b696 --- /dev/null +++ b/board/jse/Makefile @@ -0,0 +1,44 @@ +# +# Copyright 2004 Picture Elements, Inc. +# Stephen Williams <steve@icarus.com> +# +# 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 = $(BOARD).o sdram.o flash.o host_bridge.o +SOBJS = init.o + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $(OBJS) + +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/jse/README.txt b/board/jse/README.txt new file mode 100644 index 000000000..84497db70 --- /dev/null +++ b/board/jse/README.txt @@ -0,0 +1,48 @@ +JSE Configuration Details + +Memory Bank 0 -- Flash chip +--------------------------- + +0xfff00000 - 0xffffffff + +The flash chip is really only 512Kbytes, but the high address bit of +the 1Meg region is ignored, so the flash is replicated through the +region. Thus, this is consistent with a flash base address 0xfff80000. + +The placement at the end is to be consistent with reset behavior, +where the processor itself initially uses this bus to load the branch +vector and start running. + +On-Chip Memory +-------------- + +0xf4000000 - 0xf4000fff + +The 405GPr includes a 4K on-chip memory that can be placed however +software chooses. I choose to place the memory at this address, to +keep it out of the cachable areas. + + +Memory Bank 1 -- SystemACE Controller +------------------------------------- + +0xf0000000 - 0xf00fffff + +The SystemACE chip is along on peripheral bank CS#1. We don't need +much space, but 1Meg is the smallest we can configure the chip to +allocate. We need it far away from the flash region, because this +region is set to be non-cached. + + +Internal Peripherals +-------------------- + +0xef600300 - 0xef6008ff + +These are scattered various peripherals internal to the PPC405GPr +chip. + +SDRAM +----- + +0x00000000 - 0x07ffffff (128 MBytes) diff --git a/board/jse/config.mk b/board/jse/config.mk new file mode 100644 index 000000000..03ec08501 --- /dev/null +++ b/board/jse/config.mk @@ -0,0 +1,24 @@ +# +# (C) Copyright 2003 Picture Elements, Inc. +# +# 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 +# + +# +# Picture Elements, Inc. JSE boards +# + +TEXT_BASE = 0xFFF80000 diff --git a/board/jse/flash.c b/board/jse/flash.c new file mode 100644 index 000000000..a86ac1a4c --- /dev/null +++ b/board/jse/flash.c @@ -0,0 +1,671 @@ +/* + * (C) Copyright 2000-2004 + * 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 <common.h> +#include <ppc4xx.h> +#include <asm/processor.h> + +#if CFG_MAX_FLASH_BANKS != 1 +#error "CFG_MAX_FLASH_BANKS must be 1" +#endif +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); +static void flash_get_offsets (ulong base, flash_info_t * info); + +#define ADDR0 0x5555 +#define ADDR1 0x2aaa +#define FLASH_WORD_SIZE unsigned char + +/*----------------------------------------------------------------------- + */ + +unsigned long flash_init (void) +{ + unsigned long size_b0; + unsigned long base_b0; + + /* Init: no FLASHes known */ + flash_info[0].flash_id = FLASH_UNKNOWN; + + /* Static FLASH Bank configuration here - FIXME XXX */ + + size_b0 = + flash_get_size ((vu_long *) FLASH_BASE0_PRELIM, + &flash_info[0]); + + if (flash_info[0].flash_id == FLASH_UNKNOWN) { + printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", size_b0, size_b0 << 20); + } + + /* Only one bank */ + /* Setup offsets */ + flash_get_offsets (FLASH_BASE0_PRELIM, &flash_info[0]); + + /* Monitor protection ON by default */ + (void) flash_protect (FLAG_PROTECT_SET, + FLASH_BASE0_PRELIM, + FLASH_BASE0_PRELIM + monitor_flash_len - 1, + &flash_info[0]); + flash_info[0].size = size_b0; + + return size_b0; +} + + +/*----------------------------------------------------------------------- + */ +static void flash_get_offsets (ulong base, flash_info_t * info) +{ + int i; + + /* set up sector start address table */ + if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) || + (info->flash_id == FLASH_AM040)) { + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + } 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; + } + } + } +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t * info) +{ + int i; + int k; + int size; + int erased; + volatile unsigned long *flash; + + 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_SST800A: + printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n"); + break; + case FLASH_SST160A: + printf ("SST39LF/VF160 (16 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) { + /* + * Check if whole sector is erased + */ + if (i != (info->sector_count - 1)) + size = info->start[i + 1] - info->start[i]; + else + size = info->start[0] + info->size - info->start[i]; + erased = 1; + flash = (volatile unsigned long *) info->start[i]; + size = size >> 2; /* divide by 4 for longword access */ + for (k = 0; k < size; k++) { + if (*flash++ != 0xffffffff) { + erased = 0; + break; + } + } + + if ((i % 5) == 0) + printf ("\n "); +#if 0 /* test-only */ + printf (" %08lX%s", + info->start[i], info->protect[i] ? " (RO)" : " " +#else + printf (" %08lX%s%s", + info->start[i], + erased ? " E" : " ", info->protect[i] ? "RO " : " " +#endif + ); + } + printf ("\n"); + return; +} + +/*----------------------------------------------------------------------- + */ + + +/*----------------------------------------------------------------------- + */ + +/* + * 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; + +#ifdef CONFIG_ADCIOP + value = addr2[2]; +#else + value = addr2[0]; +#endif + + 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 */ + } + +#ifdef CONFIG_ADCIOP + value = addr2[0]; /* device ID */ + /* printf("\ndev_code=%x\n", value); */ +#else + value = addr2[1]; /* device ID */ +#endif + + 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_LV040B: + 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 */ +#if 0 /* enable when device IDs are available */ + 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 */ +#endif + 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 */ + + 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)) { + for (i = 0; i < info->sector_count; i++) + info->start[i] = base + (i * 0x00010000); + } 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 */ +#ifdef CONFIG_ADCIOP + addr2 = (volatile FLASH_WORD_SIZE *) (info->start[i]); + info->protect[i] = addr2[4] & 1; +#else + 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; +#endif + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { +#if 0 /* test-only */ +#ifdef CONFIG_ADCIOP + addr2 = (volatile unsigned char *) info->start[0]; + addr2[ADDR0] = 0xAA; + addr2[ADDR1] = 0x55; + addr2[ADDR0] = 0xF0; /* reset bank */ +#else + addr2 = (FLASH_WORD_SIZE *) info->start[0]; + *addr2 = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ +#endif +#else /* test-only */ + addr2 = (FLASH_WORD_SIZE *) info->start[0]; + *addr2 = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ +#endif /* test-only */ + } + + return (info->size); +} + +int wait_for_DQ7 (flash_info_t * info, int sect) +{ + ulong start, now, last; + volatile FLASH_WORD_SIZE *addr = + (FLASH_WORD_SIZE *) (info->start[sect]); + + start = get_timer (0); + last = start; + while ((addr[0] & (FLASH_WORD_SIZE) 0x00800080) != + (FLASH_WORD_SIZE) 0x00800080) { + if ((now = get_timer (start)) > CFG_FLASH_ERASE_TOUT) { + printf ("Timeout\n"); + return -1; + } + /* show that we're waiting */ + if ((now - last) > 1000) { /* every second */ + putc ('.'); + last = now; + } + } + return 0; +} + +/*----------------------------------------------------------------------- + */ + +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, l_sect; + int i; + + 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"); + } + + l_sect = -1; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + /* 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]); + printf ("Erasing sector %p\n", addr2); /* CLH */ + + if ((info->flash_id & FLASH_VENDMASK) == + FLASH_MAN_SST) { + 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) 0x00500050; /* block erase */ + for (i = 0; i < 50; i++) + udelay (1000); /* wait 1 ms */ + } else { + 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; /* sector erase */ + } + l_sect = sect; + /* + * Wait for each sector to complete, it's more + * reliable. According to AMD Spec, you must + * issue all erase commands within a specified + * timeout. This has been seen to fail, especially + * if printf()s are included (for debug)!! + */ + wait_for_DQ7 (info, sect); + } + } + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts (); + + /* wait at least 80us - let's wait 1 ms */ + udelay (1000); + +#if 0 + /* + * We wait for the last triggered sector + */ + if (l_sect < 0) + goto DONE; + wait_for_DQ7 (info, l_sect); + + DONE: +#endif + /* reset to read mode */ + addr = (FLASH_WORD_SIZE *) info->start[0]; + addr[0] = (FLASH_WORD_SIZE) 0x00F000F0; /* reset bank */ + + 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 i; + + /* Check if Flash is (sufficiently) erased */ + if ((*((volatile FLASH_WORD_SIZE *) dest) & + (FLASH_WORD_SIZE) data) != (FLASH_WORD_SIZE) data) { + return (2); + } + + for (i = 0; i < 4 / sizeof (FLASH_WORD_SIZE); i++) { + int flag; + + /* 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] & (FLASH_WORD_SIZE) 0x00800080) != + (data2[i] & (FLASH_WORD_SIZE) 0x00800080)) { + + if (get_timer (start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + } + } + + return (0); +} diff --git a/board/jse/host_bridge.c b/board/jse/host_bridge.c new file mode 100644 index 000000000..d68744518 --- /dev/null +++ b/board/jse/host_bridge.c @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form 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 + */ +#ident "$Id:$" + +# include <common.h> +# include <pci.h> +# include "jse_priv.h" + +/* + * The JSE board has an Intel 21555 non-transparent bridge for + * communication with the host. We need to render it harmless on the + * JSE side, but leave it alone on the host (primary) side. Normally, + * this will all be done before the host BIOS can gain access to the + * board, due to the Primary Access Lockout bit. + * + * The host_bridge_init function is called as a late initialization + * function, after most of the board is set up, including a PCI scan. + */ + +void host_bridge_init (void) +{ + /* The bridge chip is at a fixed location. */ + pci_dev_t dev = PCI_BDF (0, 10, 0); + + int rc; + u32 val32; + + rc = pci_read_config_dword (dev, 0, &val32); + + /* Set subsystem ID -- + The primary side sees this value at 0x2c. We set it here so + that the host can tell what sort of device this is: + We are a Picture Elements [0x12c5] JSE [0x008a]. */ + pci_write_config_dword (dev, 0x6c, 0x008a12c5); + + /* Downstream (Primary-to-Secondary) BARs are set up mostly + off. We need only the Memory-0 Bar so that the host can get + at the CSR region to set up tables and the lot. */ + + /* Downstream Memory 0 setup (4K for CSR) */ + pci_write_config_dword (dev, 0xac, 0xfffff000); + /* Downstream Memory 1 setup (off) */ + pci_write_config_dword (dev, 0xb0, 0x00000000); + /* Downstream Memory 2 setup (off) */ + pci_write_config_dword (dev, 0xb4, 0x00000000); + /* Downstream Memory 3 setup (off) */ + pci_write_config_dword (dev, 0xb8, 0x00000000); + + /* Upstream (Secondary-to-Primary) BARs are used to get at + host memory from the JSE card. Create two regions: a small + one to manage individual word reads/writes, and a larger + one for doing bulk frame moves. */ + + /* Upstream Memory 0 Setup -- (BAR2) 4K non-prefetchable */ + pci_write_config_dword (dev, 0xc4, 0xfffff000); + /* Upstream Memory 1 setup -- (BAR3) 4K non-prefetchable */ + pci_write_config_dword (dev, 0xc8, 0xfffff000); + + /* Upstream Memory 2 (BAR4) uses page translation, and is set + up in CCR1. Configure for 4K pages. */ + + /* Set CCR1,0 reigsters. This clears the Primary PCI Lockout + bit as well, so we are done configuring after this + point. Therefore, this must be the last step. + + CC1[15:12]= 0 (disable I2O message unit) + CC1[11:8] = 0x5 (4K page size) + CC0[11] = 1 (Secondary Clock Disable: disable clock) + CC0[10] = 0 (Primary Access Lockout: allow primary access) + */ + pci_write_config_dword (dev, 0xcc, 0x05000800); +} diff --git a/board/jse/init.S b/board/jse/init.S new file mode 100644 index 000000000..231cd1caf --- /dev/null +++ b/board/jse/init.S @@ -0,0 +1,105 @@ +/*------------------------------------------------------------------------+ */ +/* */ +/* 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 */ +/*------------------------------------------------------------------------- */ + +/*------------------------------------------------------------------------- */ +/* 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. */ +/* */ +/* */ +/* The layout for the PEI JSE board: */ +/* Bank 0 - Flash and SRAM */ +/* Bank 1 - SystemACE */ +/* Bank 2 - not used */ +/* Bank 3 - not used */ +/* Bank 4 - not used */ +/* Bank 5 - not used */ +/* Bank 6 - not used */ +/* Bank 7 - not used */ +/*------------------------------------------------------------------------- */ +#include <ppc4xx.h> + +#include <ppc_asm.tmpl> +#include <ppc_defs.h> + +#include <asm/cache.h> +#include <asm/mmu.h> + +#define cpc0_cr0 0xB1 + + .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 */ + + /*----------------------------------------------------------------- */ + /* 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 (Flash) initialization */ + /*----------------------------------------------------------------- */ + + addi r4,0,pb0ap + mtdcr ebccfga,r4 + addis r4,0,0x9B01 + ori r4,r4,0x5480 + mtdcr ebccfgd,r4 + + addi r4,0,pb0cr + mtdcr ebccfga,r4 + addis r4,0,0xFFF1 /* BAS=0xFFF,BS=0x0(1MB),BU=0x3(R/W), */ + ori r4,r4,0x8000 /* BW=0x0( 8 bits) */ + mtdcr ebccfgd,r4 + + blr + + +/*----------------------------------------------------------------------- */ +/* Function: sdram_init */ +/* Description: This function is called by cpu/ppc4xx/start.S code */ +/* to get the SDRAM initialized. */ +/*----------------------------------------------------------------------- */ + .globl sdram_init +sdram_init: + blr diff --git a/board/jse/jse.c b/board/jse/jse.c new file mode 100644 index 000000000..929081468 --- /dev/null +++ b/board/jse/jse.c @@ -0,0 +1,160 @@ +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form 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 <ppc4xx.h> +# include <asm/processor.h> +# include <asm/io.h> +# include "jse_priv.h" + +/* + * This function is run very early, out of flash, and before devices are + * initialized. It is called by lib_ppc/board.c:board_init_f by virtue + * of being in the init_sequence array. + * + * The SDRAM has been initialized already -- start.S:start called + * init.S:init_sdram early on -- but it is not yet being used for + * anything, not even stack. So be careful. + */ +int board_early_init_f (void) +{ + /*-------------------------------------------------------------------------+ + | Interrupt controller setup for the JSE 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/UNUSED + | IRQ 25 (EXT IRQ 0) PCI SLOT 0; active low; level sensitive + | IRQ 26 (EXT IRQ 1) PCI SLOT 1; active low; level sensitive + | IRQ 27 (EXT IRQ 2) JP2C CHIP ; active low; level sensitive + | IRQ 28 (EXT IRQ 3) PCI bridge; active low; level sensitive + | IRQ 29 (EXT IRQ 4) SystemACE IRQ; active high + | IRQ 30 (EXT IRQ 5) SystemACE BRdy (unused) + | IRQ 31 (EXT IRQ 6) (unused) + +-------------------------------------------------------------------------*/ + mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */ + mtdcr (uicer, 0x00000000); /* disable all ints */ + mtdcr (uiccr, 0x00000000); /* set all to be non-critical */ + mtdcr (uicpr, 0xFFFFFF87); /* set int polarities */ + mtdcr (uictr, 0x10000000); /* set int trigger levels */ + mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */ + + /* Configure the interface to the SystemACE MCU port. + The SystemACE is fast, but there is no reason to have + excessivly tight timings. So the settings are slightly + generous. */ + + /* EBC0_B1AP: BME=1, TWT=2, CSN=0, OEN=1, + WBN=0, WBF=1, TH=0, RE=0, SOR=0, BEM=0, PEN=0 */ + mtdcr (ebccfga, pb1ap); + mtdcr (ebccfgd, 0x01011000); + + /* EBC0_B1CR: BAS=x, BS=0(1MB), BU=3(R/W), BW=0(8bits) */ + mtdcr (ebccfga, pb1cr); + mtdcr (ebccfgd, CFG_SYSTEMACE_BASE | 0x00018000); + + /* Enable the /PerWE output as /PerWE, instead of /PCIINT. */ + /* CPC0_CR1 |= PCIPW */ + mtdcr (0xb2, mfdcr (0xb2) | 0x00004000); + + return 0; +} + +#ifdef CONFIG_BOARD_PRE_INIT +int board_pre_init (void) +{ + return board_early_init_f (); +} + +#endif + +/* + * This function is also called by lib_ppc/board.c:board_init_f (it is + * also in the init_sequence array) but later. Many more things are + * configured, but we are still running from flash. + */ +int checkboard (void) +{ + unsigned vers, status; + + /* check that the SystemACE chip is alive. */ + printf ("ACE: "); + vers = readw (CFG_SYSTEMACE_BASE + 0x16); + printf ("SystemACE %u.%u (build %u)", + (vers >> 12) & 0x0f, (vers >> 8) & 0x0f, vers & 0xff); + + status = readl (CFG_SYSTEMACE_BASE + 0x04); +#ifdef DEBUG + printf (" STATUS=0x%08x", status); +#endif + /* If the flash card is present and there is an initial error, + then force a restart of the program. */ + if (status & 0x00000010) { + printf (" CFDETECT"); + + if (status & 0x04) { + /* CONTROLREG = CFGPROG */ + writew (0x1000, CFG_SYSTEMACE_BASE + 0x18); + udelay (500); + /* CONTROLREG = CFGRESET */ + writew (0x0080, CFG_SYSTEMACE_BASE + 0x18); + udelay (500); + writew (0x0000, CFG_SYSTEMACE_BASE + 0x18); + /* CONTROLREG = CFGSTART */ + writew (0x0020, CFG_SYSTEMACE_BASE + 0x18); + + status = readl (CFG_SYSTEMACE_BASE + 0x04); + } + } + + /* Wait for the SystemACE to program its chain of devices. */ + while ((status & 0x84) == 0x00) { + udelay (500); + status = readl (CFG_SYSTEMACE_BASE + 0x04); + } + + if (status & 0x04) + printf (" CFG-ERROR"); + if (status & 0x80) + printf (" CFGDONE"); + + printf ("\n"); + + /* Force /RTS to active. The board it not wired quite + correctly to use cts/rtc flow control, so just force the + /RST active and forget about it. */ + writeb (readb (0xef600404) | 0x03, 0xef600404); + + printf ("JSE: ready\n"); + + return 0; +} + +/* **** No more functions called by board_init_f. **** */ + +/* + * This function is called by lib_ppc/board.c:board_init_r. At this + * point, basic setup is done, U-Boot has been moved into SDRAM and + * PCI has been set up. From here we done late setup. + */ +int misc_init_r (void) +{ + host_bridge_init (); + return 0; +} diff --git a/board/jse/jse_priv.h b/board/jse/jse_priv.h new file mode 100644 index 000000000..ed4894b93 --- /dev/null +++ b/board/jse/jse_priv.h @@ -0,0 +1,25 @@ +#ifndef __jse_priv_H +#define __jse_prov_H +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form 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 + */ + +extern void host_bridge_init(void); + +#endif diff --git a/board/jse/sdram.c b/board/jse/sdram.c new file mode 100644 index 000000000..9060d979d --- /dev/null +++ b/board/jse/sdram.c @@ -0,0 +1,182 @@ +/* + * Copyright (c) 2004 Picture Elements, Inc. + * Stephen Williams (steve@icarus.com) + * + * This source code is free software; you can redistribute it + * and/or modify it in source code form 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 <ppc4xx.h> +#include <asm/processor.h> + +# define SDRAM_LEN 0x08000000 + +/* + * this is even after checkboard. It returns the size of the SDRAM + * that we have installed. This function is called by board_init_f + * in lib_ppc/board.c to initialize the memory and return what I + * found. + */ +long int initdram (int board_type) +{ + /* Configure the SDRAMS */ + + /* disable memory controller */ + mtdcr (memcfga, mem_mcopt1); + mtdcr (memcfgd, 0x00000000); + + udelay (500); + + /* Clear SDRAM0_BESR0 (Bus Error Syndrome Register) */ + mtdcr (memcfga, mem_besra); + mtdcr (memcfgd, 0xffffffff); + + /* Clear SDRAM0_BESR1 (Bus Error Syndrome Register) */ + mtdcr (memcfga, mem_besrb); + mtdcr (memcfgd, 0xffffffff); + + /* Clear SDRAM0_ECCCFG (disable ECC) */ + mtdcr (memcfga, mem_ecccf); + mtdcr (memcfgd, 0x00000000); + + /* Clear SDRAM0_ECCESR (ECC Error Syndrome Register) */ + mtdcr (memcfga, mem_eccerr); + mtdcr (memcfgd, 0xffffffff); + + /* Timing register: CASL=2, PTA=2, CTP=2, LDF=1, RFTA=5, RCD=2 */ + mtdcr (memcfga, mem_sdtr1); + mtdcr (memcfgd, 0x010a4016); + + /* Memory Bank 0 Config == BA=0x00000000, SZ=64M, AM=3, BE=1 */ + mtdcr (memcfga, mem_mb0cf); + mtdcr (memcfgd, 0x00084001); + + /* Memory Bank 1 Config == BA=0x04000000, SZ=64M, AM=3, BE=1 */ + mtdcr (memcfga, mem_mb1cf); + mtdcr (memcfgd, 0x04084001); + + /* Memory Bank 2 Config == BE=0 */ + mtdcr (memcfga, mem_mb2cf); + mtdcr (memcfgd, 0x00000000); + + /* Memory Bank 3 Config == BE=0 */ + mtdcr (memcfga, mem_mb3cf); + mtdcr (memcfgd, 0x00000000); + + /* refresh timer = 0x400 */ + mtdcr (memcfga, mem_rtr); + mtdcr (memcfgd, 0x04000000); + + /* Power management idle timer set to the default. */ + mtdcr (memcfga, mem_pmit); + mtdcr (memcfgd, 0x07c00000); + + udelay (500); + + /* Enable banks (DCE=1, BPRF=1, ECCDD=1, EMDUL=1) */ + mtdcr (memcfga, mem_mcopt1); + mtdcr (memcfgd, 0x80e00000); + + return SDRAM_LEN; +} + +/* + * The U-Boot core, as part of the initialization to prepare for + * loading the monitor into SDRAM, requests of this function that the + * memory be tested. Return 0 if the memory tests OK. + */ +int testdram (void) +{ + unsigned long idx; + unsigned val; + unsigned errors; + volatile unsigned long *sdram; + +#ifdef DEBUG + printf ("SDRAM Controller Registers --\n"); + + mtdcr (memcfga, mem_mcopt1); + val = mfdcr (memcfgd); + printf (" SDRAM0_CFG : 0x%08x\n", val); + + mtdcr (memcfga, 0x24); + val = mfdcr (memcfgd); + printf (" SDRAM0_STATUS: 0x%08x\n", val); + + mtdcr (memcfga, mem_mb0cf); + val = mfdcr (memcfgd); + printf (" SDRAM0_B0CR : 0x%08x\n", val); + + mtdcr (memcfga, mem_mb1cf); + val = mfdcr (memcfgd); + printf (" SDRAM0_B1CR : 0x%08x\n", val); + + mtdcr (memcfga, mem_sdtr1); + val = mfdcr (memcfgd); + printf (" SDRAM0_TR : 0x%08x\n", val); + + mtdcr (memcfga, mem_rtr); + val = mfdcr (memcfgd); + printf (" SDRAM0_RTR : 0x%08x\n", val); +#endif + + /* Wait for memory to be ready by testing MRSCMPbit + bit. Really, there should already have been plenty of time, + given it was started long ago. But, best to check. */ + for (idx = 0; idx < 1000000; idx += 1) { + mtdcr (memcfga, 0x24); + val = mfdcr (memcfgd); + if (val & 0x80000000) + break; + } + + if (!(val & 0x80000000)) { + printf ("SDRAM ERROR: SDRAM0_STATUS never set!\n"); + return 1; + } + + /* Start memory test. */ + printf ("test: %u MB - ", SDRAM_LEN / 1048576); + + sdram = (unsigned long *) CFG_SDRAM_BASE; + + printf ("write - "); + for (idx = 2; idx < SDRAM_LEN / 4; idx += 2) { + sdram[idx + 0] = idx; + sdram[idx + 1] = ~idx; + } + + printf ("read - "); + errors = 0; + for (idx = 2; idx < SDRAM_LEN / 4; idx += 2) { + if (sdram[idx + 0] != idx) + errors += 1; + if (sdram[idx + 1] != ~idx) + errors += 1; + if (errors > 0) + break; + } + + if (errors > 0) { + printf ("NOT OK\n"); + printf ("FIRST ERROR at %p: 0x%08lx:0x%08lx != 0x%08lx:0x%08lx\n", + sdram + idx, sdram[idx + 0], sdram[idx + 1], idx, ~idx); + return 1; + } + + printf ("ok\n"); + return 0; +} diff --git a/board/jse/u-boot.lds b/board/jse/u-boot.lds new file mode 100644 index 000000000..3e54af7d0 --- /dev/null +++ b/board/jse/u-boot.lds @@ -0,0 +1,140 @@ +/* + * (C) Copyright 2000-2004 + * 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 : { + /* The start.o file includes the initial jump vector that + must be located in the beginning. It is the basic run- + time function that calls all other functions. */ + cpu/ppc4xx/start.o (.text) + + board/jse/init.o (.text) + cpu/ppc4xx/kgdb.o (.text) + +/* . = env_offset;*/ +/* common/environment.o(.text)*/ + + *(.text) + *(.fixup) + *(.got1) + } + _etext = .; + PROVIDE (etext = .); + .rodata : + { + *(.rodata) + *(.rodata1) + *(.rodata.str1.4) + } + .fini : { *(.fini) } =0 + .ctors : { *(.ctors) } + .dtors : { *(.dtors) } + + /* Read-write section, merged into data segment: */ + . = (. + 0x00FF) & 0xFFFFFF00; + _erotext = .; + PROVIDE (erotext = .); + .reloc : + { + *(.got) + _GOT2_TABLE_ = .; + *(.got2) + _FIXUP_TABLE_ = .; + *(.fixup) + } + __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2; + __fixup_entries = (. - _FIXUP_TABLE_)>>2; + + .data : + { + *(.data) + *(.data1) + *(.sdata) + *(.sdata2) + *(.dynamic) + CONSTRUCTORS + } + _edata = .; + PROVIDE (edata = .); + + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + . = ALIGN(256); + __init_begin = .; + .text.init : { *(.text.init) } + .data.init : { *(.data.init) } + . = ALIGN(256); + __init_end = .; + + __bss_start = .; + .bss : + { + *(.sbss) *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + } + _end = . ; + PROVIDE (end = .); +} |