1 /* SPDX-License-Identifier: GPL-2.0 2 * 3 * include/asm-sh/snapgear.h 4 * 5 * Modified version of io_se.h for the snapgear-specific functions. 6 * 7 * IO functions for a SnapGear 8 */ 9 10 #ifndef _ASM_SH_IO_SNAPGEAR_H 11 #define _ASM_SH_IO_SNAPGEAR_H 12 13 #define __IO_PREFIX snapgear 14 #include <asm/io_generic.h> 15 16 /* 17 * We need to remember what was written to the ioport as some bits 18 * are shared with other functions and you cannot read back what was 19 * written :-| 20 * 21 * Bit Read Write 22 * ----------------------------------------------- 23 * D0 DCD on ttySC1 power 24 * D1 Reset Switch heatbeat 25 * D2 ttySC0 CTS (7100) LAN 26 * D3 - WAN 27 * D4 ttySC0 DCD (7100) CONSOLE 28 * D5 - ONLINE 29 * D6 - VPN 30 * D7 - DTR on ttySC1 31 * D8 - ttySC0 RTS (7100) 32 * D9 - ttySC0 DTR (7100) 33 * D10 - RTC SCLK 34 * D11 RTC DATA RTC DATA 35 * D12 - RTS RESET 36 */ 37 38 #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000) 39 extern unsigned short secureedge5410_ioport; 40 41 #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \ 42 (secureedge5410_ioport = \ 43 ((secureedge5410_ioport & ~(mask)) | ((val) & (mask))))) 44 #define SECUREEDGE_READ_IOPORT() \ 45 ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817)) 46 47 #endif /* _ASM_SH_IO_SNAPGEAR_H */ 48