arm: omap: rename board-rx51-sdram.c to sdram-nokia.c

Rename the file and functions so that it can be reused by future Nokia
boards. Based on patches by Juha Keski-Saari.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 0 insertions, 221 deletions

diff --git a/arch/arm/mach-omap2/board-rx51-sdram.c b/arch/arm/mach-omap2/board-rx51-sdram.c
deleted file mode 100644
index a43b2c5c838b..000000000000
--- a/arch/arm/mach-omap2/board-rx51-sdram.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * SDRC register values for RX51
- *
- * Copyright (C) 2008 Nokia Corporation
- *
- * Lauri Leukkunen <lauri.leukkunen@nokia.com>
- *
- * Original code by Juha Yrjola <juha.yrjola@solidboot.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#include <plat/io.h>
-#include <plat/common.h>
-#include <plat/clock.h>
-#include <plat/sdrc.h>
-
-
-/* In picoseconds, except for tREF (ns), tXP, tCKE, tWTR (clks) */
-struct sdram_timings {
-	u32 casl;
-	u32 tDAL;
-	u32 tDPL;
-	u32 tRRD;
-	u32 tRCD;
-	u32 tRP;
-	u32 tRAS;
-	u32 tRC;
-	u32 tRFC;
-	u32 tXSR;
-
-	u32 tREF; /* in ns */
-
-	u32 tXP;
-	u32 tCKE;
-	u32 tWTR;
-};
-
-static struct omap_sdrc_params rx51_sdrc_params[4];
-
-static const struct sdram_timings rx51_timings[] = {
-	{
-		.casl = 3,
-		.tDAL = 33000,
-		.tDPL = 15000,
-		.tRRD = 12000,
-		.tRCD = 22500,
-		.tRP = 18000,
-		.tRAS = 42000,
-		.tRC = 66000,
-		.tRFC = 138000,
-		.tXSR = 200000,
-
-		.tREF = 7800,
-
-		.tXP = 2,
-		.tCKE = 2,
-		.tWTR = 2
-	},
-};
-
-static unsigned long sdrc_get_fclk_period(long rate)
-{
-	/* In picoseconds */
-	return 1000000000 / rate;
-}
-
-static unsigned int sdrc_ps_to_ticks(unsigned int time_ps, long rate)
-{
-	unsigned long tick_ps;
-
-	/* Calculate in picosecs to yield more exact results */
-	tick_ps = sdrc_get_fclk_period(rate);
-
-	return (time_ps + tick_ps - 1) / tick_ps;
-}
-#undef DEBUG
-#ifdef DEBUG
-static int set_sdrc_timing_regval(u32 *regval, int st_bit, int end_bit,
-				int ticks, long rate, const char *name)
-#else
-static int set_sdrc_timing_regval(u32 *regval, int st_bit, int end_bit,
-			       int ticks)
-#endif
-{
-	int mask, nr_bits;
-
-	nr_bits = end_bit - st_bit + 1;
-	if (ticks >= 1 << nr_bits)
-		return -1;
-	mask = (1 << nr_bits) - 1;
-	*regval &= ~(mask << st_bit);
-	*regval |= ticks << st_bit;
-#ifdef DEBUG
-	printk(KERN_INFO "SDRC %s: %i ticks %i ns\n", name, ticks,
-			(unsigned int)sdrc_get_fclk_period(rate) * ticks /
-			1000);
-#endif
-
-	return 0;
-}
-
-#ifdef DEBUG
-#define SDRC_SET_ONE(reg, st, end, field, rate) \
-	if (set_sdrc_timing_regval((reg), (st), (end), \
-			rx51_timings->field, (rate), #field) < 0) \
-		err = -1;
-#else
-#define SDRC_SET_ONE(reg, st, end, field, rate) \
-	if (set_sdrc_timing_regval((reg), (st), (end), \
-			rx51_timings->field) < 0) \
-		err = -1;
-#endif
-
-#ifdef DEBUG
-static int set_sdrc_timing_regval_ps(u32 *regval, int st_bit, int end_bit,
-				int time, long rate, const char *name)
-#else
-static int set_sdrc_timing_regval_ps(u32 *regval, int st_bit, int end_bit,
-				int time, long rate)
-#endif
-{
-	int ticks, ret;
-	ret = 0;
-
-	if (time == 0)
-		ticks = 0;
-	else
-		ticks = sdrc_ps_to_ticks(time, rate);
-
-#ifdef DEBUG
-	ret = set_sdrc_timing_regval(regval, st_bit, end_bit, ticks,
-				     rate, name);
-#else
-	ret = set_sdrc_timing_regval(regval, st_bit, end_bit, ticks);
-#endif
-
-	return ret;
-}
-
-#ifdef DEBUG
-#define SDRC_SET_ONE_PS(reg, st, end, field, rate) \
-	if (set_sdrc_timing_regval_ps((reg), (st), (end), \
-			rx51_timings->field, \
-			(rate), #field) < 0) \
-		err = -1;
-
-#else
-#define SDRC_SET_ONE_PS(reg, st, end, field, rate) \
-	if (set_sdrc_timing_regval_ps((reg), (st), (end), \
-			rx51_timings->field, (rate)) < 0) \
-		err = -1;
-#endif
-
-static int sdrc_timings(int id, long rate)
-{
-	u32 ticks_per_ms;
-	u32 rfr, l;
-	u32 actim_ctrla = 0, actim_ctrlb = 0;
-	u32 rfr_ctrl;
-	int err = 0;
-	long l3_rate = rate / 1000;
-
-	SDRC_SET_ONE_PS(&actim_ctrla,  0,  4, tDAL, l3_rate);
-	SDRC_SET_ONE_PS(&actim_ctrla,  6,  8, tDPL, l3_rate);
-	SDRC_SET_ONE_PS(&actim_ctrla,  9, 11, tRRD, l3_rate);
-	SDRC_SET_ONE_PS(&actim_ctrla, 12, 14, tRCD, l3_rate);
-	SDRC_SET_ONE_PS(&actim_ctrla, 15, 17, tRP, l3_rate);
-	SDRC_SET_ONE_PS(&actim_ctrla, 18, 21, tRAS, l3_rate);
-	SDRC_SET_ONE_PS(&actim_ctrla, 22, 26, tRC, l3_rate);
-	SDRC_SET_ONE_PS(&actim_ctrla, 27, 31, tRFC, l3_rate);
-
-	SDRC_SET_ONE_PS(&actim_ctrlb,  0,  7, tXSR, l3_rate);
-
-	SDRC_SET_ONE(&actim_ctrlb,  8, 10, tXP, l3_rate);
-	SDRC_SET_ONE(&actim_ctrlb, 12, 14, tCKE, l3_rate);
-	SDRC_SET_ONE(&actim_ctrlb, 16, 17, tWTR, l3_rate);
-
-	ticks_per_ms = l3_rate;
-	rfr = rx51_timings[0].tREF * ticks_per_ms / 1000000;
-	if (rfr > 65535 + 50)
-		rfr = 65535;
-	else
-		rfr -= 50;
-
-#ifdef DEBUG
-	printk(KERN_INFO "SDRC tREF: %i ticks\n", rfr);
-#endif
-
-	l = rfr << 8;
-	rfr_ctrl = l | 0x1; /* autorefresh, reload counter with 1xARCV */
-
-	rx51_sdrc_params[id].rate = rate;
-	rx51_sdrc_params[id].actim_ctrla = actim_ctrla;
-	rx51_sdrc_params[id].actim_ctrlb = actim_ctrlb;
-	rx51_sdrc_params[id].rfr_ctrl = rfr_ctrl;
-	rx51_sdrc_params[id].mr = 0x32;
-
-	rx51_sdrc_params[id + 1].rate = 0;
-
-	return err;
-}
-
-struct omap_sdrc_params *rx51_get_sdram_timings(void)
-{
-	int err;
-
-	err = sdrc_timings(0, 41500000);
-	err |= sdrc_timings(1, 83000000);
-	err |= sdrc_timings(2, 166000000);
-
-	return &rx51_sdrc_params[0];
-}
-