/*
 * Geode GX video processor device.
 *
 *   Copyright (C) 2006 Arcom Control Systems Ltd.
 *
 *   Portions from AMD's original 2.4 driver:
 *     Copyright (C) 2004 Advanced Micro Devices, Inc.
 *
 *   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.
 */
#include <linux/fb.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/delay.h>
#include <asm/msr.h>
#include <linux/cs5535.h>

#include "gxfb.h"


/*
 * Tables of register settings for various DOTCLKs.
 */
struct gx_pll_entry {
	long pixclock; /* ps */
	u32 sys_rstpll_bits;
	u32 dotpll_value;
};

#define POSTDIV3 ((u32)MSR_GLCP_SYS_RSTPLL_DOTPOSTDIV3)
#define PREMULT2 ((u32)MSR_GLCP_SYS_RSTPLL_DOTPREMULT2)
#define PREDIV2  ((u32)MSR_GLCP_SYS_RSTPLL_DOTPOSTDIV3)

static const struct gx_pll_entry gx_pll_table_48MHz[] = {
	{ 40123, POSTDIV3,	    0x00000BF2 },	/*  24.9230 */
	{ 39721, 0,		    0x00000037 },	/*  25.1750 */
	{ 35308, POSTDIV3|PREMULT2, 0x00000B1A },	/*  28.3220 */