f8fc109960
repo: https://github.com/u-boot/u-boot commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91 Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/*
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* Copyright (C) 2007 Freescale Semiconductor, Inc.
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*
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* Tony Li <tony.li@freescale.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*/
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#include <common.h>
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#include <i2c.h>
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#include <asm/io.h>
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#include "pq-mds-pib.h"
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int pib_init(void)
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{
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u8 val8;
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u8 orig_i2c_bus;
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/* Switch temporarily to I2C bus #2 */
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orig_i2c_bus = i2c_get_bus_num();
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i2c_set_bus_num(1);
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val8 = 0;
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#if defined(CONFIG_PCI) && !defined(CONFIG_PCISLAVE)
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/* Assign PIB PMC slot to desired PCI bus */
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i2c_write(0x23, 0x6, 1, &val8, 1);
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i2c_write(0x23, 0x7, 1, &val8, 1);
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val8 = 0xff;
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i2c_write(0x23, 0x2, 1, &val8, 1);
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i2c_write(0x23, 0x3, 1, &val8, 1);
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val8 = 0;
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i2c_write(0x26, 0x6, 1, &val8, 1);
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val8 = 0x34;
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i2c_write(0x26, 0x7, 1, &val8, 1);
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val8 = 0xf3; /* PMC1, PMC2, PMC3 slot to PCI bus */
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i2c_write(0x26, 0x2, 1, &val8, 1);
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val8 = 0xff;
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i2c_write(0x26, 0x3, 1, &val8, 1);
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val8 = 0;
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i2c_write(0x27, 0x6, 1, &val8, 1);
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i2c_write(0x27, 0x7, 1, &val8, 1);
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val8 = 0xff;
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i2c_write(0x27, 0x2, 1, &val8, 1);
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val8 = 0xef;
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i2c_write(0x27, 0x3, 1, &val8, 1);
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eieio();
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printf("PCI 32bit bus on PMC1 & PMC2 &PMC3\n");
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#endif
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/* Reset to original I2C bus */
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i2c_set_bus_num(orig_i2c_bus);
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return 0;
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}
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