Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 563 deletions

diff --git a/ANDROID_3.4.5/arch/arm/mach-ep93xx/clock.c b/ANDROID_3.4.5/arch/arm/mach-ep93xx/clock.c
deleted file mode 100644
index c95dbce2..00000000
--- a/ANDROID_3.4.5/arch/arm/mach-ep93xx/clock.c
+++ /dev/null
@@ -1,563 +0,0 @@
-/*
- * arch/arm/mach-ep93xx/clock.c
- * Clock control for Cirrus EP93xx chips.
- *
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- *
- * 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.
- */
-
-#define pr_fmt(fmt) "ep93xx " KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/io.h>
-#include <linux/spinlock.h>
-#include <linux/clkdev.h>
-
-#include <mach/hardware.h>
-
-#include <asm/div64.h>
-
-#include "soc.h"
-
-struct clk {
-	struct clk	*parent;
-	unsigned long	rate;
-	int		users;
-	int		sw_locked;
-	void __iomem	*enable_reg;
-	u32		enable_mask;
-
-	unsigned long	(*get_rate)(struct clk *clk);
-	int		(*set_rate)(struct clk *clk, unsigned long rate);
-};
-
-
-static unsigned long get_uart_rate(struct clk *clk);
-
-static int set_keytchclk_rate(struct clk *clk, unsigned long rate);
-static int set_div_rate(struct clk *clk, unsigned long rate);
-static int set_i2s_sclk_rate(struct clk *clk, unsigned long rate);
-static int set_i2s_lrclk_rate(struct clk *clk, unsigned long rate);
-
-static struct clk clk_xtali = {
-	.rate		= EP93XX_EXT_CLK_RATE,
-};
-static struct clk clk_uart1 = {
-	.parent		= &clk_xtali,
-	.sw_locked	= 1,
-	.enable_reg	= EP93XX_SYSCON_DEVCFG,
-	.enable_mask	= EP93XX_SYSCON_DEVCFG_U1EN,
-	.get_rate	= get_uart_rate,
-};
-static struct clk clk_uart2 = {
-	.parent		= &clk_xtali,
-	.sw_locked	= 1,
-	.enable_reg	= EP93XX_SYSCON_DEVCFG,
-	.enable_mask	= EP93XX_SYSCON_DEVCFG_U2EN,
-	.get_rate	= get_uart_rate,
-};
-static struct clk clk_uart3 = {
-	.parent		= &clk_xtali,
-	.sw_locked	= 1,
-	.enable_reg	= EP93XX_SYSCON_DEVCFG,
-	.enable_mask	= EP93XX_SYSCON_DEVCFG_U3EN,
-	.get_rate	= get_uart_rate,
-};
-static struct clk clk_pll1 = {
-	.parent		= &clk_xtali,
-};
-static struct clk clk_f = {
-	.parent		= &clk_pll1,
-};
-static struct clk clk_h = {
-	.parent		= &clk_pll1,
-};
-static struct clk clk_p = {
-	.parent		= &clk_pll1,
-};
-static struct clk clk_pll2 = {
-	.parent		= &clk_xtali,
-};
-static struct clk clk_usb_host = {
-	.parent		= &clk_pll2,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_USH_EN,
-};
-static struct clk clk_keypad = {
-	.parent		= &clk_xtali,
-	.sw_locked	= 1,
-	.enable_reg	= EP93XX_SYSCON_KEYTCHCLKDIV,
-	.enable_mask	= EP93XX_SYSCON_KEYTCHCLKDIV_KEN,
-	.set_rate	= set_keytchclk_rate,
-};
-static struct clk clk_spi = {
-	.parent		= &clk_xtali,
-	.rate		= EP93XX_EXT_CLK_RATE,
-};
-static struct clk clk_pwm = {
-	.parent		= &clk_xtali,
-	.rate		= EP93XX_EXT_CLK_RATE,
-};
-
-static struct clk clk_video = {
-	.sw_locked	= 1,
-	.enable_reg     = EP93XX_SYSCON_VIDCLKDIV,
-	.enable_mask    = EP93XX_SYSCON_CLKDIV_ENABLE,
-	.set_rate	= set_div_rate,
-};
-
-static struct clk clk_i2s_mclk = {
-	.sw_locked	= 1,
-	.enable_reg	= EP93XX_SYSCON_I2SCLKDIV,
-	.enable_mask	= EP93XX_SYSCON_CLKDIV_ENABLE,
-	.set_rate	= set_div_rate,
-};
-
-static struct clk clk_i2s_sclk = {
-	.sw_locked	= 1,
-	.parent		= &clk_i2s_mclk,
-	.enable_reg	= EP93XX_SYSCON_I2SCLKDIV,
-	.enable_mask	= EP93XX_SYSCON_I2SCLKDIV_SENA,
-	.set_rate	= set_i2s_sclk_rate,
-};
-
-static struct clk clk_i2s_lrclk = {
-	.sw_locked	= 1,
-	.parent		= &clk_i2s_sclk,
-	.enable_reg	= EP93XX_SYSCON_I2SCLKDIV,
-	.enable_mask	= EP93XX_SYSCON_I2SCLKDIV_SENA,
-	.set_rate	= set_i2s_lrclk_rate,
-};
-
-/* DMA Clocks */
-static struct clk clk_m2p0 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P0,
-};
-static struct clk clk_m2p1 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P1,
-};
-static struct clk clk_m2p2 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P2,
-};
-static struct clk clk_m2p3 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P3,
-};
-static struct clk clk_m2p4 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P4,
-};
-static struct clk clk_m2p5 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P5,
-};
-static struct clk clk_m2p6 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P6,
-};
-static struct clk clk_m2p7 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P7,
-};
-static struct clk clk_m2p8 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P8,
-};
-static struct clk clk_m2p9 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2P9,
-};
-static struct clk clk_m2m0 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2M0,
-};
-static struct clk clk_m2m1 = {
-	.parent		= &clk_h,
-	.enable_reg	= EP93XX_SYSCON_PWRCNT,
-	.enable_mask	= EP93XX_SYSCON_PWRCNT_DMA_M2M1,
-};
-
-#define INIT_CK(dev,con,ck)					\
-	{ .dev_id = dev, .con_id = con, .clk = ck }
-
-static struct clk_lookup clocks[] = {
-	INIT_CK(NULL,			"xtali",	&clk_xtali),
-	INIT_CK("apb:uart1",		NULL,		&clk_uart1),
-	INIT_CK("apb:uart2",		NULL,		&clk_uart2),
-	INIT_CK("apb:uart3",		NULL,		&clk_uart3),
-	INIT_CK(NULL,			"pll1",		&clk_pll1),
-	INIT_CK(NULL,			"fclk",		&clk_f),
-	INIT_CK(NULL,			"hclk",		&clk_h),
-	INIT_CK(NULL,			"apb_pclk",	&clk_p),
-	INIT_CK(NULL,			"pll2",		&clk_pll2),
-	INIT_CK("ep93xx-ohci",		NULL,		&clk_usb_host),
-	INIT_CK("ep93xx-keypad",	NULL,		&clk_keypad),
-	INIT_CK("ep93xx-fb",		NULL,		&clk_video),
-	INIT_CK("ep93xx-spi.0",		NULL,		&clk_spi),
-	INIT_CK("ep93xx-i2s",		"mclk",		&clk_i2s_mclk),
-	INIT_CK("ep93xx-i2s",		"sclk",		&clk_i2s_sclk),
-	INIT_CK("ep93xx-i2s",		"lrclk",	&clk_i2s_lrclk),
-	INIT_CK(NULL,			"pwm_clk",	&clk_pwm),
-	INIT_CK(NULL,			"m2p0",		&clk_m2p0),
-	INIT_CK(NULL,			"m2p1",		&clk_m2p1),
-	INIT_CK(NULL,			"m2p2",		&clk_m2p2),
-	INIT_CK(NULL,			"m2p3",		&clk_m2p3),
-	INIT_CK(NULL,			"m2p4",		&clk_m2p4),
-	INIT_CK(NULL,			"m2p5",		&clk_m2p5),
-	INIT_CK(NULL,			"m2p6",		&clk_m2p6),
-	INIT_CK(NULL,			"m2p7",		&clk_m2p7),
-	INIT_CK(NULL,			"m2p8",		&clk_m2p8),
-	INIT_CK(NULL,			"m2p9",		&clk_m2p9),
-	INIT_CK(NULL,			"m2m0",		&clk_m2m0),
-	INIT_CK(NULL,			"m2m1",		&clk_m2m1),
-};
-
-static DEFINE_SPINLOCK(clk_lock);
-
-static void __clk_enable(struct clk *clk)
-{
-	if (!clk->users++) {
-		if (clk->parent)
-			__clk_enable(clk->parent);
-
-		if (clk->enable_reg) {
-			u32 v;
-
-			v = __raw_readl(clk->enable_reg);
-			v |= clk->enable_mask;
-			if (clk->sw_locked)
-				ep93xx_syscon_swlocked_write(v, clk->enable_reg);
-			else
-				__raw_writel(v, clk->enable_reg);
-		}
-	}
-}
-
-int clk_enable(struct clk *clk)
-{
-	unsigned long flags;
-
-	if (!clk)
-		return -EINVAL;
-
-	spin_lock_irqsave(&clk_lock, flags);
-	__clk_enable(clk);
-	spin_unlock_irqrestore(&clk_lock, flags);
-
-	return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-static void __clk_disable(struct clk *clk)
-{
-	if (!--clk->users) {
-		if (clk->enable_reg) {
-			u32 v;
-
-			v = __raw_readl(clk->enable_reg);
-			v &= ~clk->enable_mask;
-			if (clk->sw_locked)
-				ep93xx_syscon_swlocked_write(v, clk->enable_reg);
-			else
-				__raw_writel(v, clk->enable_reg);
-		}
-
-		if (clk->parent)
-			__clk_disable(clk->parent);
-	}
-}
-
-void clk_disable(struct clk *clk)
-{
-	unsigned long flags;
-
-	if (!clk)
-		return;
-
-	spin_lock_irqsave(&clk_lock, flags);
-	__clk_disable(clk);
-	spin_unlock_irqrestore(&clk_lock, flags);
-}
-EXPORT_SYMBOL(clk_disable);
-
-static unsigned long get_uart_rate(struct clk *clk)
-{
-	unsigned long rate = clk_get_rate(clk->parent);
-	u32 value;
-
-	value = __raw_readl(EP93XX_SYSCON_PWRCNT);
-	if (value & EP93XX_SYSCON_PWRCNT_UARTBAUD)
-		return rate;
-	else
-		return rate / 2;
-}
-
-unsigned long clk_get_rate(struct clk *clk)
-{
-	if (clk->get_rate)
-		return clk->get_rate(clk);
-
-	return clk->rate;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-static int set_keytchclk_rate(struct clk *clk, unsigned long rate)
-{
-	u32 val;
-	u32 div_bit;
-
-	val = __raw_readl(clk->enable_reg);
-
-	/*
-	 * The Key Matrix and ADC clocks are configured using the same
-	 * System Controller register.  The clock used will be either
-	 * 1/4 or 1/16 the external clock rate depending on the
-	 * EP93XX_SYSCON_KEYTCHCLKDIV_KDIV/EP93XX_SYSCON_KEYTCHCLKDIV_ADIV
-	 * bit being set or cleared.
-	 */
-	div_bit = clk->enable_mask >> 15;
-
-	if (rate == EP93XX_KEYTCHCLK_DIV4)
-		val |= div_bit;
-	else if (rate == EP93XX_KEYTCHCLK_DIV16)
-		val &= ~div_bit;
-	else
-		return -EINVAL;
-
-	ep93xx_syscon_swlocked_write(val, clk->enable_reg);
-	clk->rate = rate;
-	return 0;
-}
-
-static int calc_clk_div(struct clk *clk, unsigned long rate,
-			int *psel, int *esel, int *pdiv, int *div)
-{
-	struct clk *mclk;
-	unsigned long max_rate, actual_rate, mclk_rate, rate_err = -1;
-	int i, found = 0, __div = 0, __pdiv = 0;
-
-	/* Don't exceed the maximum rate */
-	max_rate = max3(clk_pll1.rate / 4, clk_pll2.rate / 4, clk_xtali.rate / 4);
-	rate = min(rate, max_rate);
-
-	/*
-	 * Try the two pll's and the external clock
-	 * Because the valid predividers are 2, 2.5 and 3, we multiply
-	 * all the clocks by 2 to avoid floating point math.
-	 *
-	 * This is based on the algorithm in the ep93xx raster guide:
-	 * http://be-a-maverick.com/en/pubs/appNote/AN269REV1.pdf
-	 *
-	 */
-	for (i = 0; i < 3; i++) {
-		if (i == 0)
-			mclk = &clk_xtali;
-		else if (i == 1)
-			mclk = &clk_pll1;
-		else
-			mclk = &clk_pll2;
-		mclk_rate = mclk->rate * 2;
-
-		/* Try each predivider value */
-		for (__pdiv = 4; __pdiv <= 6; __pdiv++) {
-			__div = mclk_rate / (rate * __pdiv);
-			if (__div < 2 || __div > 127)
-				continue;
-
-			actual_rate = mclk_rate / (__pdiv * __div);
-
-			if (!found || abs(actual_rate - rate) < rate_err) {
-				*pdiv = __pdiv - 3;
-				*div = __div;
-				*psel = (i == 2);
-				*esel = (i != 0);
-				clk->parent = mclk;
-				clk->rate = actual_rate;
-				rate_err = abs(actual_rate - rate);
-				found = 1;
-			}
-		}
-	}
-
-	if (!found)
-		return -EINVAL;
-
-	return 0;
-}
-
-static int set_div_rate(struct clk *clk, unsigned long rate)
-{
-	int err, psel = 0, esel = 0, pdiv = 0, div = 0;
-	u32 val;
-
-	err = calc_clk_div(clk, rate, &psel, &esel, &pdiv, &div);
-	if (err)
-		return err;
-
-	/* Clear the esel, psel, pdiv and div bits */
-	val = __raw_readl(clk->enable_reg);
-	val &= ~0x7fff;
-
-	/* Set the new esel, psel, pdiv and div bits for the new clock rate */
-	val |= (esel ? EP93XX_SYSCON_CLKDIV_ESEL : 0) |
-		(psel ? EP93XX_SYSCON_CLKDIV_PSEL : 0) |
-		(pdiv << EP93XX_SYSCON_CLKDIV_PDIV_SHIFT) | div;
-	ep93xx_syscon_swlocked_write(val, clk->enable_reg);
-	return 0;
-}
-
-static int set_i2s_sclk_rate(struct clk *clk, unsigned long rate)
-{
-	unsigned val = __raw_readl(clk->enable_reg);
-
-	if (rate == clk_i2s_mclk.rate / 2)
-		ep93xx_syscon_swlocked_write(val & ~EP93XX_I2SCLKDIV_SDIV, 
-					     clk->enable_reg);
-	else if (rate == clk_i2s_mclk.rate / 4)
-		ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_SDIV, 
-					     clk->enable_reg);
-	else
-		return -EINVAL;
-
-	clk_i2s_sclk.rate = rate;
-	return 0;
-}
-
-static int set_i2s_lrclk_rate(struct clk *clk, unsigned long rate)
-{
-	unsigned val = __raw_readl(clk->enable_reg) & 
-		~EP93XX_I2SCLKDIV_LRDIV_MASK;
-	
-	if (rate == clk_i2s_sclk.rate / 32)
-		ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_LRDIV32,
-					     clk->enable_reg);
-	else if (rate == clk_i2s_sclk.rate / 64)
-		ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_LRDIV64,
-					     clk->enable_reg);
-	else if (rate == clk_i2s_sclk.rate / 128)
-		ep93xx_syscon_swlocked_write(val | EP93XX_I2SCLKDIV_LRDIV128,
-					     clk->enable_reg);
-	else
-		return -EINVAL;
-
-	clk_i2s_lrclk.rate = rate;
-	return 0;
-}
-
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	if (clk->set_rate)
-		return clk->set_rate(clk, rate);
-
-	return -EINVAL;
-}
-EXPORT_SYMBOL(clk_set_rate);
-
-
-static char fclk_divisors[] = { 1, 2, 4, 8, 16, 1, 1, 1 };
-static char hclk_divisors[] = { 1, 2, 4, 5, 6, 8, 16, 32 };
-static char pclk_divisors[] = { 1, 2, 4, 8 };
-
-/*
- * PLL rate = 14.7456 MHz * (X1FBD + 1) * (X2FBD + 1) / (X2IPD + 1) / 2^PS
- */
-static unsigned long calc_pll_rate(u32 config_word)
-{
-	unsigned long long rate;
-	int i;
-
-	rate = clk_xtali.rate;
-	rate *= ((config_word >> 11) & 0x1f) + 1;		/* X1FBD */
-	rate *= ((config_word >> 5) & 0x3f) + 1;		/* X2FBD */
-	do_div(rate, (config_word & 0x1f) + 1);			/* X2IPD */
-	for (i = 0; i < ((config_word >> 16) & 3); i++)		/* PS */
-		rate >>= 1;
-
-	return (unsigned long)rate;
-}
-
-static void __init ep93xx_dma_clock_init(void)
-{
-	clk_m2p0.rate = clk_h.rate;
-	clk_m2p1.rate = clk_h.rate;
-	clk_m2p2.rate = clk_h.rate;
-	clk_m2p3.rate = clk_h.rate;
-	clk_m2p4.rate = clk_h.rate;
-	clk_m2p5.rate = clk_h.rate;
-	clk_m2p6.rate = clk_h.rate;
-	clk_m2p7.rate = clk_h.rate;
-	clk_m2p8.rate = clk_h.rate;
-	clk_m2p9.rate = clk_h.rate;
-	clk_m2m0.rate = clk_h.rate;
-	clk_m2m1.rate = clk_h.rate;
-}
-
-static int __init ep93xx_clock_init(void)
-{
-	u32 value;
-
-	/* Determine the bootloader configured pll1 rate */
-	value = __raw_readl(EP93XX_SYSCON_CLKSET1);
-	if (!(value & EP93XX_SYSCON_CLKSET1_NBYP1))
-		clk_pll1.rate = clk_xtali.rate;
-	else
-		clk_pll1.rate = calc_pll_rate(value);
-
-	/* Initialize the pll1 derived clocks */
-	clk_f.rate = clk_pll1.rate / fclk_divisors[(value >> 25) & 0x7];
-	clk_h.rate = clk_pll1.rate / hclk_divisors[(value >> 20) & 0x7];
-	clk_p.rate = clk_h.rate / pclk_divisors[(value >> 18) & 0x3];
-	ep93xx_dma_clock_init();
-
-	/* Determine the bootloader configured pll2 rate */
-	value = __raw_readl(EP93XX_SYSCON_CLKSET2);
-	if (!(value & EP93XX_SYSCON_CLKSET2_NBYP2))
-		clk_pll2.rate = clk_xtali.rate;
-	else if (value & EP93XX_SYSCON_CLKSET2_PLL2_EN)
-		clk_pll2.rate = calc_pll_rate(value);
-	else
-		clk_pll2.rate = 0;
-
-	/* Initialize the pll2 derived clocks */
-	clk_usb_host.rate = clk_pll2.rate / (((value >> 28) & 0xf) + 1);
-
-	/*
-	 * EP93xx SSP clock rate was doubled in version E2. For more information
-	 * see:
-	 *     http://www.cirrus.com/en/pubs/appNote/AN273REV4.pdf
-	 */
-	if (ep93xx_chip_revision() < EP93XX_CHIP_REV_E2)
-		clk_spi.rate /= 2;
-
-	pr_info("PLL1 running at %ld MHz, PLL2 at %ld MHz\n",
-		clk_pll1.rate / 1000000, clk_pll2.rate / 1000000);
-	pr_info("FCLK %ld MHz, HCLK %ld MHz, PCLK %ld MHz\n",
-		clk_f.rate / 1000000, clk_h.rate / 1000000,
-		clk_p.rate / 1000000);
-
-	clkdev_add_table(clocks, ARRAY_SIZE(clocks));
-	return 0;
-}
-postcore_initcall(ep93xx_clock_init);