Martin Roth (martin@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/981 -gerrit commit f7738ffdbf221cb4ae80ce3172e8dfa3a54e043d Author: Martin Roth <martin@se-eng.com> Date: Sat Apr 28 10:25:20 2012 -0600 Add simple PMIO & PMIO2 read/write routines to CIMX wrapper These are the PMIO & PMIO2 read & write routines from src/southbridge/amd/sb800/sb800.c & sb800.h for use in the cimx tree. Currently most platforms using CIMX are calling WritePMIO() directly from the src/vendorcode/amd/cimx/sbX00 directories instead of using a wrapper function. These functions only do byte reads & writes. Change-Id: I881a6e2d4ddbba3dbdf4dd33e06313fe88b3682a Signed-off-by: Martin L Roth <martin@se-eng.com> --- src/southbridge/amd/cimx/Makefile.inc | 4 ++ src/southbridge/amd/cimx/cimx_util.c | 52 +++++++++++++++++++++++++++++++++ src/southbridge/amd/cimx/cimx_util.h | 36 ++++++++++++++++++++++ 3 files changed, 92 insertions(+), 0 deletions(-) diff --git a/src/southbridge/amd/cimx/Makefile.inc b/src/southbridge/amd/cimx/Makefile.inc index 80c6378..a9ea8b9 100644 --- a/src/southbridge/amd/cimx/Makefile.inc +++ b/src/southbridge/amd/cimx/Makefile.inc @@ -19,3 +19,7 @@ subdirs-$(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB700) += sb700 subdirs-$(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB800) += sb800 subdirs-$(CONFIG_SOUTHBRIDGE_AMD_CIMX_SB900) += sb900 + +romstage-y += cimx_util.c + +ramstage-y += cimx_util.c diff --git a/src/southbridge/amd/cimx/cimx_util.c b/src/southbridge/amd/cimx/cimx_util.c new file mode 100755 index 0000000..ca4c86a --- /dev/null +++ b/src/southbridge/amd/cimx/cimx_util.c @@ -0,0 +1,52 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Advanced Micro Devices, 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <arch/io.h> +#include "cimx_util.h" + +static void pmio_write_index(u16 port_base, u8 reg, u8 value) +{ + outb(reg, port_base); + outb(value, port_base + 1); +} + +static u8 pmio_read_index(u16 port_base, u8 reg) +{ + outb(reg, port_base); + return inb(port_base + 1); +} + +void pm_iowrite(u8 reg, u8 value) +{ + pmio_write_index(PM_INDEX, reg, value); +} + +u8 pm_ioread(u8 reg) +{ + return pmio_read_index(PM_INDEX, reg); +} + +void pm2_iowrite(u8 reg, u8 value) +{ + pmio_write_index(PM2_INDEX, reg, value); +} + +u8 pm2_ioread(u8 reg) +{ + return pmio_read_index(PM2_INDEX, reg); +} diff --git a/src/southbridge/amd/cimx/cimx_util.h b/src/southbridge/amd/cimx/cimx_util.h new file mode 100755 index 0000000..4ef534c --- /dev/null +++ b/src/southbridge/amd/cimx/cimx_util.h @@ -0,0 +1,36 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2010 Advanced Micro Devices, 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef CIMX_UTIL_H +#define CIMX_UTIL_H + +#include <stdint.h> + +/* Power management index/data registers */ +#define PM_INDEX 0xcd6 +#define PM_DATA 0xcd7 +#define PM2_INDEX 0xcd0 +#define PM2_DATA 0xcd1 + +void pm_iowrite(u8 reg, u8 value); +u8 pm_ioread(u8 reg); +void pm2_iowrite(u8 reg, u8 value); +u8 pm2_ioread(u8 reg); + +#endif /* CIMX_UTIL_H */