/**
- * Copyright 2010 Freescale Semiconductor
+ * Copyright 2010-2011 Freescale Semiconductor
* Author: Timur Tabi <timur@freescale.com>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
+ * SPDX-License-Identifier: GPL-2.0+
*
* This file provides support for the ngPIXIS, a board-specific FPGA used on
* some Freescale reference boards.
u8 scver;
u8 csr;
u8 rst;
- u8 res1;
+ u8 serclk;
u8 aux;
u8 spd;
u8 brdcfg0;
u8 brdcfg1; /* On some boards, this register is called 'dma' */
u8 addr;
- u8 res2[2];
+ u8 brdcfg2;
+ u8 gpiodir;
u8 data;
u8 led;
- u8 res3;
+ u8 tag;
u8 vctl;
u8 vstat;
u8 vcfgen0;
struct {
u8 sw;
u8 en;
- } s[8];
-} ngpixis_t __attribute__ ((aligned(1)));
+ } 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 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)