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