54 lines
1.5 KiB
C
Executable file
54 lines
1.5 KiB
C
Executable file
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __MACH_SE_MRSHPC_H
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#define __MACH_SE_MRSHPC_H
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#include <linux/io.h>
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static inline void __init mrshpc_setup_windows(void)
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{
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if ((__raw_readw(MRSHPC_CSR) & 0x000c) != 0)
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return; /* Not detected */
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if ((__raw_readw(MRSHPC_CSR) & 0x0080) == 0) {
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__raw_writew(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
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} else {
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__raw_writew(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */
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}
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/*
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* PC-Card window open
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* flag == COMMON/ATTRIBUTE/IO
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*/
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/* common window open */
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__raw_writew(0x8a84, MRSHPC_MW0CR1);
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if((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
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/* common mode & bus width 16bit SWAP = 1*/
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__raw_writew(0x0b00, MRSHPC_MW0CR2);
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else
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/* common mode & bus width 16bit SWAP = 0*/
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__raw_writew(0x0300, MRSHPC_MW0CR2);
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/* attribute window open */
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__raw_writew(0x8a85, MRSHPC_MW1CR1);
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if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
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/* attribute mode & bus width 16bit SWAP = 1*/
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__raw_writew(0x0a00, MRSHPC_MW1CR2);
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else
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/* attribute mode & bus width 16bit SWAP = 0*/
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__raw_writew(0x0200, MRSHPC_MW1CR2);
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/* I/O window open */
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__raw_writew(0x8a86, MRSHPC_IOWCR1);
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__raw_writew(0x0008, MRSHPC_CDCR); /* I/O card mode */
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if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
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__raw_writew(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/
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else
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__raw_writew(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/
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__raw_writew(0x2000, MRSHPC_ICR);
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__raw_writeb(0x00, PA_MRSHPC_MW2 + 0x206);
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__raw_writeb(0x42, PA_MRSHPC_MW2 + 0x200);
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}
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#endif /* __MACH_SE_MRSHPC_H */
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