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53 lines
1.5 KiB
53 lines
1.5 KiB
/* 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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