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68 lines
1.8 KiB
68 lines
1.8 KiB
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "sb700_smbus.h"
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static void alink_ab_indx(u32 reg_space, u32 reg_addr,
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u32 mask, u32 val)
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{
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u32 tmp;
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OUTL((reg_space & 0x3) << 30 | reg_addr, AB_INDX);
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tmp = INL(AB_DATA);
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//add for sb700
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reg_addr & 0x10000 ? OUTL(0, AB_INDX) : NULL;
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tmp &= ~mask;
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tmp |= val;
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/* printk_debug("about write %x, index=%x", tmp, (reg_space&0x3)<<30 | reg_addr); */
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OUTL((reg_space & 0x3) << 30 | reg_addr, AB_INDX); /* probably we dont have to do it again. */
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OUTL(tmp, AB_DATA);
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//add for sb700
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reg_addr & 0x10000 ? OUTL(0, AB_INDX) : NULL;
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}
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/* space = 0: AX_INDXC, AX_DATAC
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* space = 1: AX_INDXP, AX_DATAP
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*/
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static void alink_ax_indx(u32 space /*c or p? */ , u32 axindc,
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u32 mask, u32 val)
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{
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u32 tmp;
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/* read axindc to tmp */
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OUTL(space << 30 | space << 3 | 0x30, AB_INDX);
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OUTL(axindc, AB_DATA);
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OUTL(space << 30 | space << 3 | 0x34, AB_INDX);
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tmp = INL(AB_DATA);
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tmp &= ~mask;
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tmp |= val;
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/* write tmp */
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OUTL(space << 30 | space << 3 | 0x30, AB_INDX);
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OUTL(axindc, AB_DATA);
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OUTL(space << 30 | space << 3 | 0x34, AB_INDX);
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OUTL(tmp, AB_DATA);
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}
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