From 76ce5deb54ce145676fa2cc970b59cd137b5b983 Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Thu, 16 Mar 2006 00:52:58 +0000 Subject: [PATCH] dump mmcr registers on Elan sc520 git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2202 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- util/dump_mmcr/Makefile | 5 ++ util/dump_mmcr/dumpmmcr.c | 103 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 108 insertions(+) create mode 100644 util/dump_mmcr/Makefile create mode 100644 util/dump_mmcr/dumpmmcr.c diff --git a/util/dump_mmcr/Makefile b/util/dump_mmcr/Makefile new file mode 100644 index 0000000000..161a3616e4 --- /dev/null +++ b/util/dump_mmcr/Makefile @@ -0,0 +1,5 @@ +dumpmmcr: dumpmmcr.c + gcc -m32 -Os -static -o dumpmmcr dumpmmcr.c + strip -s dumpmmcr +clean: + rm dumpmmcr diff --git a/util/dump_mmcr/dumpmmcr.c b/util/dump_mmcr/dumpmmcr.c new file mode 100644 index 0000000000..79a5f13cc3 --- /dev/null +++ b/util/dump_mmcr/dumpmmcr.c @@ -0,0 +1,103 @@ +/* + * dump mmcr of Elan520 uController (incomplete, see 22005b pg23+). + * + * Copyright 2006 coresystems GmbH + * Stefan Reinauer + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +int dump_mmcr(void) +{ + int fd_mem; + volatile uint8_t *mmcr; + unsigned long size=4096; + + if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) { + perror("Can not open /dev/mem"); + exit(1); + } + + if (getpagesize() > size) { + size = getpagesize(); + } + + mmcr = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, + fd_mem, (off_t) (0xFFFEF000)); + + if (mmcr == MAP_FAILED) { + perror("Error MMAP /dev/mem"); + exit(1); + } + + printf("ElanSC520 uC Rev. ID : %04x\n",*(uint16_t *)mmcr); + printf("Am5x86 CPU Control : %04x\n",*(uint16_t *)(mmcr+2)); + printf("\n"); + printf("SDRAM Control : %04x\n",*(uint16_t *)(mmcr+0x10)); + printf("SDRAM Timing Control : %04x\n",*(uint16_t *)(mmcr+0x12)); + printf("SDRAM Bank Config : %04x\n",*(uint16_t *)(mmcr+0x14)); + printf("SDRAM Bank 0-3 Ending : %04x\n",*(uint16_t *)(mmcr+0x18)); + printf("ECC Control : %04x\n",*(uint16_t *)(mmcr+0x20)); + printf("ECC Status : %04x\n",*(uint16_t *)(mmcr+0x21)); + printf("ECC Check Bit Position: %04x\n",*(uint16_t *)(mmcr+0x22)); + printf("ECC Check Code Test : %04x\n",*(uint16_t *)(mmcr+0x23)); + printf("ECC Single Bit ErrAddr: %04x\n",*(uint16_t *)(mmcr+0x24)); + printf("ECC Multi Bit ErrAddr : %04x\n",*(uint16_t *)(mmcr+0x28)); + printf("\n"); + printf("SDRAM Buffer Control : %04x\n",*(uint16_t *)(mmcr+0x40)); + printf("\n"); + printf("BOOTCS Control : %04x\n",*(uint16_t *)(mmcr+0x50)); + printf("BOOTCS1 Control : %04x\n",*(uint16_t *)(mmcr+0x54)); + printf("BOOTCS2 Control : %04x\n",*(uint16_t *)(mmcr+0x56)); + printf("\n"); + + printf("Adr Decode Control : %02x\n",*(uint8_t *)(mmcr+0x80)); + printf("WrProt Violation Stat.: %04x\n",*(uint16_t *)(mmcr+0x82)); + printf("PAR 0 : %08x\n",*(uint32_t *)(mmcr+0x88)); + printf("PAR 1 : %08x\n",*(uint32_t *)(mmcr+0x8C)); + printf("PAR 2 : %08x\n",*(uint32_t *)(mmcr+0x90)); + printf("PAR 3 : %08x\n",*(uint32_t *)(mmcr+0x94)); + printf("PAR 4 : %08x\n",*(uint32_t *)(mmcr+0x98)); + printf("PAR 5 : %08x\n",*(uint32_t *)(mmcr+0x9C)); + printf("PAR 6 : %08x\n",*(uint32_t *)(mmcr+0xA0)); + printf("PAR 7 : %08x\n",*(uint32_t *)(mmcr+0xA4)); + printf("PAR 8 : %08x\n",*(uint32_t *)(mmcr+0xA8)); + printf("PAR 9 : %08x\n",*(uint32_t *)(mmcr+0xAC)); + printf("PAR 10 : %08x\n",*(uint32_t *)(mmcr+0xB0)); + printf("PAR 11 : %08x\n",*(uint32_t *)(mmcr+0xB4)); + printf("PAR 12 : %08x\n",*(uint32_t *)(mmcr+0xB8)); + printf("PAR 13 : %08x\n",*(uint32_t *)(mmcr+0xBC)); + printf("PAR 14 : %08x\n",*(uint32_t *)(mmcr+0xC0)); + printf("PAR 15 : %08x\n",*(uint32_t *)(mmcr+0xC4)); + + munmap((void *) mmcr, size); + return 0; +} + +int main(int argc, char *argv[]) +{ + dump_mmcr(); + return 0; +}