1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __MACH_SE_MRSHPC_H
3*4882a593Smuzhiyun #define __MACH_SE_MRSHPC_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <linux/io.h>
6*4882a593Smuzhiyun
mrshpc_setup_windows(void)7*4882a593Smuzhiyun static inline void __init mrshpc_setup_windows(void)
8*4882a593Smuzhiyun {
9*4882a593Smuzhiyun if ((__raw_readw(MRSHPC_CSR) & 0x000c) != 0)
10*4882a593Smuzhiyun return; /* Not detected */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun if ((__raw_readw(MRSHPC_CSR) & 0x0080) == 0) {
13*4882a593Smuzhiyun __raw_writew(0x0674, MRSHPC_CPWCR); /* Card Vcc is 3.3v? */
14*4882a593Smuzhiyun } else {
15*4882a593Smuzhiyun __raw_writew(0x0678, MRSHPC_CPWCR); /* Card Vcc is 5V */
16*4882a593Smuzhiyun }
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun /*
19*4882a593Smuzhiyun * PC-Card window open
20*4882a593Smuzhiyun * flag == COMMON/ATTRIBUTE/IO
21*4882a593Smuzhiyun */
22*4882a593Smuzhiyun /* common window open */
23*4882a593Smuzhiyun __raw_writew(0x8a84, MRSHPC_MW0CR1);
24*4882a593Smuzhiyun if((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
25*4882a593Smuzhiyun /* common mode & bus width 16bit SWAP = 1*/
26*4882a593Smuzhiyun __raw_writew(0x0b00, MRSHPC_MW0CR2);
27*4882a593Smuzhiyun else
28*4882a593Smuzhiyun /* common mode & bus width 16bit SWAP = 0*/
29*4882a593Smuzhiyun __raw_writew(0x0300, MRSHPC_MW0CR2);
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun /* attribute window open */
32*4882a593Smuzhiyun __raw_writew(0x8a85, MRSHPC_MW1CR1);
33*4882a593Smuzhiyun if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
34*4882a593Smuzhiyun /* attribute mode & bus width 16bit SWAP = 1*/
35*4882a593Smuzhiyun __raw_writew(0x0a00, MRSHPC_MW1CR2);
36*4882a593Smuzhiyun else
37*4882a593Smuzhiyun /* attribute mode & bus width 16bit SWAP = 0*/
38*4882a593Smuzhiyun __raw_writew(0x0200, MRSHPC_MW1CR2);
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun /* I/O window open */
41*4882a593Smuzhiyun __raw_writew(0x8a86, MRSHPC_IOWCR1);
42*4882a593Smuzhiyun __raw_writew(0x0008, MRSHPC_CDCR); /* I/O card mode */
43*4882a593Smuzhiyun if ((__raw_readw(MRSHPC_CSR) & 0x4000) != 0)
44*4882a593Smuzhiyun __raw_writew(0x0a00, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1*/
45*4882a593Smuzhiyun else
46*4882a593Smuzhiyun __raw_writew(0x0200, MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0*/
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun __raw_writew(0x2000, MRSHPC_ICR);
49*4882a593Smuzhiyun __raw_writeb(0x00, PA_MRSHPC_MW2 + 0x206);
50*4882a593Smuzhiyun __raw_writeb(0x42, PA_MRSHPC_MW2 + 0x200);
51*4882a593Smuzhiyun }
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun #endif /* __MACH_SE_MRSHPC_H */
54