2 * Copyright 2010-2011 Freescale Semiconductor
3 * Author: Timur Tabi <timur@freescale.com>
5 * SPDX-License-Identifier: GPL-2.0+
7 * This file provides support for the ngPIXIS, a board-specific FPGA used on
8 * some Freescale reference boards.
11 /* ngPIXIS register set. Hopefully, this won't change too much over time.
12 * Feel free to add board-specific #ifdefs where necessary.
14 typedef struct ngpixis {
24 u8 brdcfg1; /* On some boards, this register is called 'dma' */
45 } s[9]; /* s[0]..s[7] is SW1..SW8, and s[8] is SW11 */
46 } __attribute__ ((packed)) ngpixis_t;
48 /* Pointer to the PIXIS register set */
49 #define pixis ((ngpixis_t *)PIXIS_BASE)
51 /* The PIXIS SW register that corresponds to board switch X, where x >= 1 */
52 #define PIXIS_SW(x) (pixis->s[(x) - 1].sw)
54 /* The PIXIS EN register that corresponds to board switch X, where x >= 1 */
55 #define PIXIS_EN(x) (pixis->s[(x) - 1].en)
57 u8 pixis_read(unsigned int reg);
58 void pixis_write(unsigned int reg, u8 value);
60 #define PIXIS_READ(reg) pixis_read(offsetof(ngpixis_t, reg))
61 #define PIXIS_WRITE(reg, value) pixis_write(offsetof(ngpixis_t, reg), value)