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| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | #ifndef __MACH_SE_MRSHPC_H |
| 3 | #define __MACH_SE_MRSHPC_H |
| 4 | |
| 5 | #include <linux/io.h> |
| 6 | |
| 7 | static inline void __init mrshpc_setup_windows(void) |
| 8 | { |
| 9 | if ((__raw_readw(MRSHPC_CSR) & 0x000c) != 0) |
| 10 | return; /* Not detected */ |
| 11 | |
| 12 | if ((__raw_readw(MRSHPC_CSR) & 0x0080) == 0) { |
| 13 | __raw_writew(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */ |
| 14 | } else { |
| 15 | __raw_writew(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */ |
| 16 | } |
| 17 | |
| 18 | /* |
| 19 | * PC-Card window open |
| 20 | * flag == COMMON/ATTRIBUTE/IO |
| 21 | */ |
| 22 | /* common window open */ |
| 23 | __raw_writew(0x8a84, MRSHPC_MW0CR1); |
| 24 | if((__raw_readw(MRSHPC_CSR) & 0x4000) != 0) |
| 25 | /* common mode & bus width 16bit SWAP = 1*/ |
| 26 | __raw_writew(0x0b00, MRSHPC_MW0CR2); |
| 27 | else |
| 28 | /* common mode & bus width 16bit SWAP = 0*/ |
| 29 | __raw_writew(0x0300, MRSHPC_MW0CR2); |
| 30 | |
| 31 | /* attribute window open */ |
| 32 | __raw_writew(0x8a85, MRSHPC_MW1CR1); |
| 33 | if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0) |
| 34 | /* attribute mode & bus width 16bit SWAP = 1*/ |
| 35 | __raw_writew(0x0a00, MRSHPC_MW1CR2); |
| 36 | else |
| 37 | /* attribute mode & bus width 16bit SWAP = 0*/ |
| 38 | __raw_writew(0x0200, MRSHPC_MW1CR2); |
| 39 | |
| 40 | /* I/O window open */ |
| 41 | __raw_writew(0x8a86, MRSHPC_IOWCR1); |
| 42 | __raw_writew(0x0008, MRSHPC_CDCR); /* I/O card mode */ |
| 43 | if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0) |
| 44 | __raw_writew(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/ |
| 45 | else |
| 46 | __raw_writew(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/ |
| 47 | |
| 48 | __raw_writew(0x2000, MRSHPC_ICR); |
| 49 | __raw_writeb(0x00, PA_MRSHPC_MW2 + 0x206); |
| 50 | __raw_writeb(0x42, PA_MRSHPC_MW2 + 0x200); |
| 51 | } |
| 52 | |
| 53 | #endif /* __MACH_SE_MRSHPC_H */ |
| 54 |
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