[src/trunk]: src/sys/arch/arm/nvidia Enable XUSB power rails at attach

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1bc4b0c8b810
branches:  trunk
changeset: 826721:1bc4b0c8b810
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sun Sep 24 20:09:22 2017 +0000

description:
Enable XUSB power rails at attach

diffstat:

 sys/arch/arm/nvidia/tegra_xusb.c |  14 +++++++++++---
 1 files changed, 11 insertions(+), 3 deletions(-)

diffs (43 lines):

diff -r 428895e22b08 -r 1bc4b0c8b810 sys/arch/arm/nvidia/tegra_xusb.c
--- a/sys/arch/arm/nvidia/tegra_xusb.c  Sun Sep 24 09:43:27 2017 +0000
+++ b/sys/arch/arm/nvidia/tegra_xusb.c  Sun Sep 24 20:09:22 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tegra_xusb.c,v 1.9 2017/09/22 18:13:36 jmcneill Exp $ */
+/* $NetBSD: tegra_xusb.c,v 1.10 2017/09/24 20:09:22 jmcneill Exp $ */
 
 /*
  * Copyright (c) 2016 Jonathan A. Kollasch
@@ -30,7 +30,7 @@
 #include "opt_tegra.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tegra_xusb.c,v 1.9 2017/09/22 18:13:36 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tegra_xusb.c,v 1.10 2017/09/24 20:09:22 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -42,8 +42,9 @@
 #include <arm/nvidia/tegra_reg.h>
 #include <arm/nvidia/tegra_var.h>
 #include <arm/nvidia/tegra_xusbpad.h>
+#include <arm/nvidia/tegra_xusbreg.h>
+#include <arm/nvidia/tegra_pmcreg.h>
 
-#include <arm/nvidia/tegra_xusbreg.h>
 #include <dev/pci/pcireg.h>
 
 #include <dev/fdt/fdtvar.h>
@@ -231,6 +232,13 @@
        }
        aprint_normal_dev(self, "interrupting on %s\n", intrstr);
 
+       /* Enable XUSB power rails */
+
+       tegra_pmc_power(PMC_PARTID_XUSBC, true);        /* Host/USB2.0 */
+       tegra_pmc_power(PMC_PARTID_XUSBA, true);        /* SuperSpeed */
+
+       /* Enable XUSB clocks */
+
        clk = fdtbus_clock_get(faa->faa_phandle, "pll_e");
        rate = clk_get_rate(clk);
        error = clk_enable(clk); /* XXX set frequency */