| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 */ |