[PATCH 3/3] ARM: i.MX: setup ENET_CLK_SEL in imx6_init for every imx6q/imx6d

[Marco Felsch <m.felsch@pengutronix.de>]

Setup the ENET TX reference clk to get it from the internal clock from
anatop. This is the default value for newer imx6 processors like: 6sx,
6ul, 6ull. So it should be safe to set it as default for imx6q/d too.

It will be output on the pad if ENET_REF_CLK is muxed which can be used
to clock a phy.

While on it replace the current 'magic' value by the new introduced
definition.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
---
 arch/arm/mach-imx/imx6.c | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-imx/imx6.c b/arch/arm/mach-imx/imx6.c
index 6a9ea23c71..f325e698fa 100644
--- a/arch/arm/mach-imx/imx6.c
+++ b/arch/arm/mach-imx/imx6.c
@@ -160,16 +160,28 @@ static void imx6_setup_ipu_qos(void)
 	}
 }
 
-static void imx6ul_enet_clk_init(void)
+static void imx6_enet_clk_init(void)
 {
-	void __iomem *gprbase = IOMEM(MX6_IOMUXC_BASE_ADDR) + 0x4000;
-	uint32_t val;
+	void __iomem *gprbase;
+	uint32_t val, bitmask;
 
-	if (!cpu_mx6_is_mx6ul() && !cpu_mx6_is_mx6ull())
+	switch (imx6_cpu_type()) {
+	case IMX6_CPUTYPE_IMX6D:
+	case IMX6_CPUTYPE_IMX6Q:
+		gprbase = IOMEM(MX6_IOMUXC_BASE_ADDR);
+		bitmask = IMX6Q_GPR1_ENET_CLK_SEL_ANATOP;
+		break;
+	case IMX6_CPUTYPE_IMX6UL:
+	case IMX6_CPUTYPE_IMX6ULL:
+		gprbase = IOMEM(MX6_IOMUXC_BASE_ADDR) + 0x4000;
+		bitmask = IMX6UL_GPR1_ENET_CLK_OUTPUT;
+		break;
+	default:
 		return;
+	}
 
 	val = readl(gprbase + IOMUXC_GPR1);
-	val |= (0x3 << 17);
+	val |= bitmask;
 	writel(val, gprbase + IOMUXC_GPR1);
 }
 
@@ -264,7 +276,7 @@ int imx6_init(void)
 	pr_info("%s unique ID: %llx\n", cputypestr, mx6_uid);
 
 	imx6_setup_ipu_qos();
-	imx6ul_enet_clk_init();
+	imx6_enet_clk_init();
 
 	pfuze_register_init_callback(imx6_register_poweroff_init);
 
-- 
2.20.1


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox