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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
073da9c0 PM |
2 | #ifndef __MACH_SE_MRSHPC_H |
3 | #define __MACH_SE_MRSHPC_H | |
4 | ||
5 | #include <linux/io.h> | |
6 | ||
0146d787 | 7 | static inline void __init mrshpc_setup_windows(void) |
073da9c0 PM |
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 */ |