From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Mon, 23 Mar 2009 09:07:48 +0000 (+0100)
Subject: i.MX35 clock support: remove automotive path
X-Git-Tag: firefly_0821_release~13934^2~29^2~52
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d16caf69ce26dbd2ec3ae4e0072c2a60f1896c89;p=firefly-linux-kernel-4.4.55.git

i.MX35 clock support: remove automotive path

It is no longer present in newer cores. Unfortunately Freescale decided
to put the bit which decides between automotive clock path and consumer
clock path in the automotive clock path direction. With current code we
cannot detect the core revision, so just remove automotive path completely.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---

diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c
index 53a112d4e04a..db4aba7e5c6f 100644
--- a/arch/arm/mach-mx3/clock-imx35.c
+++ b/arch/arm/mach-mx3/clock-imx35.c
@@ -147,34 +147,16 @@ static struct arm_ahb_div clk_consumer[] = {
 	{ .arm = 0, .ahb = 0, .sel = 0},
 };
 
-static struct arm_ahb_div clk_automotive[] = {
-	{ .arm = 1, .ahb = 3, .sel = 0},
-	{ .arm = 1, .ahb = 2, .sel = 1},
-	{ .arm = 2, .ahb = 1, .sel = 1},
-	{ .arm = 0, .ahb = 0, .sel = 0},
-	{ .arm = 1, .ahb = 6, .sel = 0},
-	{ .arm = 1, .ahb = 4, .sel = 1},
-	{ .arm = 2, .ahb = 2, .sel = 1},
-	{ .arm = 0, .ahb = 0, .sel = 0},
-};
-
 static unsigned long get_rate_arm(void)
 {
 	unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0);
 	struct arm_ahb_div *aad;
 	unsigned long fref = get_rate_mpll();
 
-	if (pdr0 & 1) {
-		/* consumer path */
-		aad = &clk_consumer[(pdr0 >> 16) & 0xf];
-		if (aad->sel)
-			fref = fref * 2 / 3;
-	} else {
-		/* auto path */
-		aad = &clk_automotive[(pdr0 >> 9) & 0x7];
-		if (aad->sel)
-			fref = fref * 3 / 4;
-	}
+	aad = &clk_consumer[(pdr0 >> 16) & 0xf];
+	if (aad->sel)
+		fref = fref * 2 / 3;
+
 	return fref / aad->arm;
 }
 
@@ -184,12 +166,7 @@ static unsigned long get_rate_ahb(struct clk *clk)
 	struct arm_ahb_div *aad;
 	unsigned long fref = get_rate_mpll();
 
-	if (pdr0 & 1)
-		/* consumer path */
-		aad = &clk_consumer[(pdr0 >> 16) & 0xf];
-	else
-		/* auto path */
-		aad = &clk_automotive[(pdr0 >> 9) & 0x7];
+	aad = &clk_consumer[(pdr0 >> 16) & 0xf];
 
 	return fref / aad->ahb;
 }