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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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