ARM: pxa: separate the clock support into clock-{pxa2xx,pxa3xx}.c

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 1 insertions, 169 deletions

diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index a0b123c..b239c1a 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -38,184 +38,15 @@
 #include "devices.h"
 #include "clock.h"
 
-/* Crystal clock: 13MHz */
-#define BASE_CLK	13000000
-
-/* Ring Oscillator Clock: 60MHz */
-#define RO_CLK		60000000
-
-#define ACCR_D0CS	(1 << 26)
-#define ACCR_PCCE	(1 << 11)
-
 #define PECR_IE(n)	((1 << ((n) * 2)) << 28)
 #define PECR_IS(n)	((1 << ((n) * 2)) << 29)
 
-/* crystal frequency to static memory controller multiplier (SMCFS) */
-static unsigned char smcfs_mult[8] = { 6, 0, 8, 0, 0, 16, };
-
-/* crystal frequency to HSIO bus frequency multiplier (HSS) */
-static unsigned char hss_mult[4] = { 8, 12, 16, 24 };
-
-/*
- * Get the clock frequency as reflected by CCSR and the turbo flag.
- * We assume these values have been applied via a fcs.
- * If info is not 0 we also display the current settings.
- */
-unsigned int pxa3xx_get_clk_frequency_khz(int info)
-{
-	unsigned long acsr, xclkcfg;
-	unsigned int t, xl, xn, hss, ro, XL, XN, CLK, HSS;
-
-	/* Read XCLKCFG register turbo bit */
-	__asm__ __volatile__("mrc\tp14, 0, %0, c6, c0, 0" : "=r"(xclkcfg));
-	t = xclkcfg & 0x1;
-
-	acsr = ACSR;
-
-	xl  = acsr & 0x1f;
-	xn  = (acsr >> 8) & 0x7;
-	hss = (acsr >> 14) & 0x3;
-
-	XL = xl * BASE_CLK;
-	XN = xn * XL;
-
-	ro = acsr & ACCR_D0CS;
-
-	CLK = (ro) ? RO_CLK : ((t) ? XN : XL);
-	HSS = (ro) ? RO_CLK : hss_mult[hss] * BASE_CLK;
-
-	if (info) {
-		pr_info("RO Mode clock: %d.%02dMHz (%sactive)\n",
-			RO_CLK / 1000000, (RO_CLK % 1000000) / 10000,
-			(ro) ? "" : "in");
-		pr_info("Run Mode clock: %d.%02dMHz (*%d)\n",
-			XL / 1000000, (XL % 1000000) / 10000, xl);
-		pr_info("Turbo Mode clock: %d.%02dMHz (*%d, %sactive)\n",
-			XN / 1000000, (XN % 1000000) / 10000, xn,
-			(t) ? "" : "in");
-		pr_info("HSIO bus clock: %d.%02dMHz\n",
-			HSS / 1000000, (HSS % 1000000) / 10000);
-	}
-
-	return CLK / 1000;
-}
-
 void pxa3xx_clear_reset_status(unsigned int mask)
 {
 	/* RESET_STATUS_* has a 1:1 mapping with ARSR */
 	ARSR = mask;
 }
 
-/*
- * Return the current AC97 clock frequency.
- */
-static unsigned long clk_pxa3xx_ac97_getrate(struct clk *clk)
-{
-	unsigned long rate = 312000000;
-	unsigned long ac97_div;
-
-	ac97_div = AC97_DIV;
-
-	/* This may loose precision for some rates but won't for the
-	 * standard 24.576MHz.
-	 */
-	rate /= (ac97_div >> 12) & 0x7fff;
-	rate *= (ac97_div & 0xfff);
-
-	return rate;
-}
-
-/*
- * Return the current HSIO bus clock frequency
- */
-static unsigned long clk_pxa3xx_hsio_getrate(struct clk *clk)
-{
-	unsigned long acsr;
-	unsigned int hss, hsio_clk;
-
-	acsr = ACSR;
-
-	hss = (acsr >> 14) & 0x3;
-	hsio_clk = (acsr & ACCR_D0CS) ? RO_CLK : hss_mult[hss] * BASE_CLK;
-
-	return hsio_clk;
-}
-
-void clk_pxa3xx_cken_enable(struct clk *clk)
-{
-	unsigned long mask = 1ul << (clk->cken & 0x1f);
-
-	if (clk->cken < 32)
-		CKENA |= mask;
-	else
-		CKENB |= mask;
-}
-
-void clk_pxa3xx_cken_disable(struct clk *clk)
-{
-	unsigned long mask = 1ul << (clk->cken & 0x1f);
-
-	if (clk->cken < 32)
-		CKENA &= ~mask;
-	else
-		CKENB &= ~mask;
-}
-
-const struct clkops clk_pxa3xx_cken_ops = {
-	.enable		= clk_pxa3xx_cken_enable,
-	.disable	= clk_pxa3xx_cken_disable,
-};
-
-static const struct clkops clk_pxa3xx_hsio_ops = {
-	.enable		= clk_pxa3xx_cken_enable,
-	.disable	= clk_pxa3xx_cken_disable,
-	.getrate	= clk_pxa3xx_hsio_getrate,
-};
-
-static const struct clkops clk_pxa3xx_ac97_ops = {
-	.enable		= clk_pxa3xx_cken_enable,
-	.disable	= clk_pxa3xx_cken_disable,
-	.getrate	= clk_pxa3xx_ac97_getrate,
-};
-
-static void clk_pout_enable(struct clk *clk)
-{
-	OSCC |= OSCC_PEN;
-}
-
-static void clk_pout_disable(struct clk *clk)
-{
-	OSCC &= ~OSCC_PEN;
-}
-
-static const struct clkops clk_pout_ops = {
-	.enable		= clk_pout_enable,
-	.disable	= clk_pout_disable,
-};
-
-static void clk_dummy_enable(struct clk *clk)
-{
-}
-
-static void clk_dummy_disable(struct clk *clk)
-{
-}
-
-static const struct clkops clk_dummy_ops = {
-	.enable		= clk_dummy_enable,
-	.disable	= clk_dummy_disable,
-};
-
-static struct clk clk_pxa3xx_pout = {
-	.ops		= &clk_pout_ops,
-	.rate		= 13000000,
-	.delay		= 70,
-};
-
-static struct clk clk_dummy = {
-	.ops		= &clk_dummy_ops,
-};
-
 static DEFINE_PXA3_CKEN(pxa3xx_ffuart, FFUART, 14857000, 1);
 static DEFINE_PXA3_CKEN(pxa3xx_btuart, BTUART, 14857000, 1);
 static DEFINE_PXA3_CKEN(pxa3xx_stuart, STUART, 14857000, 1);
@@ -236,6 +67,7 @@ static DEFINE_PXA3_CKEN(pxa3xx_mmc2, MMC2, 19500000, 0);
 static DEFINE_CK(pxa3xx_lcd, LCD, &clk_pxa3xx_hsio_ops);
 static DEFINE_CK(pxa3xx_camera, CAMERA, &clk_pxa3xx_hsio_ops);
 static DEFINE_CK(pxa3xx_ac97, AC97, &clk_pxa3xx_ac97_ops);
+static DEFINE_CLK(pxa3xx_pout, &clk_pxa3xx_pout_ops, 13000000, 70);
 
 static struct clk_lookup pxa3xx_clkregs[] = {
 	INIT_CLKREG(&clk_pxa3xx_pout, NULL, "CLK_POUT"),