| /** |
| * Copyright 2010-2011 Freescale Semiconductor |
| * Author: Timur Tabi <timur@freescale.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| * |
| * This file provides support for the ngPIXIS, a board-specific FPGA used on |
| * some Freescale reference boards. |
| */ |
| |
| /* ngPIXIS register set. Hopefully, this won't change too much over time. |
| * Feel free to add board-specific #ifdefs where necessary. |
| */ |
| typedef struct ngpixis { |
| u8 id; |
| u8 arch; |
| u8 scver; |
| u8 csr; |
| u8 rst; |
| u8 serclk; |
| u8 aux; |
| u8 spd; |
| u8 brdcfg0; |
| u8 brdcfg1; /* On some boards, this register is called 'dma' */ |
| u8 addr; |
| u8 brdcfg2; |
| u8 gpiodir; |
| u8 data; |
| u8 led; |
| u8 tag; |
| u8 vctl; |
| u8 vstat; |
| u8 vcfgen0; |
| u8 res4; |
| u8 ocmcsr; |
| u8 ocmmsg; |
| u8 gmdbg; |
| u8 res5[2]; |
| u8 sclk[3]; |
| u8 dclk[3]; |
| u8 watch; |
| struct { |
| u8 sw; |
| u8 en; |
| } s[9]; /* s[0]..s[7] is SW1..SW8, and s[8] is SW11 */ |
| } __attribute__ ((packed)) ngpixis_t; |
| |
| /* Pointer to the PIXIS register set */ |
| #define pixis ((ngpixis_t *)PIXIS_BASE) |
| |
| /* The PIXIS SW register that corresponds to board switch X, where x >= 1 */ |
| #define PIXIS_SW(x) (pixis->s[(x) - 1].sw) |
| |
| /* The PIXIS EN register that corresponds to board switch X, where x >= 1 */ |
| #define PIXIS_EN(x) (pixis->s[(x) - 1].en) |
| |
| u8 pixis_read(unsigned int reg); |
| void pixis_write(unsigned int reg, u8 value); |
| |
| #define PIXIS_READ(reg) pixis_read(offsetof(ngpixis_t, reg)) |
| #define PIXIS_WRITE(reg, value) pixis_write(offsetof(ngpixis_t, reg), value) |
