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/* SPDX-License-Identifier: GPL-2.0 * * include/asm-sh/snapgear.h * * Modified version of io_se.h for the snapgear-specific functions. * * IO functions for a SnapGear */ #ifndef _ASM_SH_IO_SNAPGEAR_H #define _ASM_SH_IO_SNAPGEAR_H #define __IO_PREFIX snapgear #include <asm/io_generic.h> /* * We need to remember what was written to the ioport as some bits * are shared with other functions and you cannot read back what was * written :-| * * Bit Read Write * ----------------------------------------------- * D0 DCD on ttySC1 power * D1 Reset Switch heatbeat * D2 ttySC0 CTS (7100) LAN * D3 - WAN * D4 ttySC0 DCD (7100) CONSOLE * D5 - ONLINE * D6 - VPN * D7 - DTR on ttySC1 * D8 - ttySC0 RTS (7100) * D9 - ttySC0 DTR (7100) * D10 - RTC SCLK * D11 RTC DATA RTC DATA * D12 - RTS RESET */ #define SECUREEDGE_IOPORT_ADDR ((volatile short *) 0xb0000000) extern unsigned short secureedge5410_ioport; #define SECUREEDGE_WRITE_IOPORT(val, mask) (*SECUREEDGE_IOPORT_ADDR = \ (secureedge5410_ioport = \ ((secureedge5410_ioport & ~(mask)) | ((val) & (mask))))) #define SECUREEDGE_READ_IOPORT() \ ((*SECUREEDGE_IOPORT_ADDR&0x0817) | (secureedge5410_ioport&~0x0817)) #endif /* _ASM_SH_IO_SNAPGEAR_H */