[src/trunk]: src/sys/arch/arm/sunxi Enable parent clocks and de-assert resets

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

details:   https://anonhg.NetBSD.org/src/rev/e483654b13ae
branches:  trunk
changeset: 448145:e483654b13ae
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Tue Jan 22 21:45:39 2019 +0000

description:
Enable parent clocks and de-assert resets

diffstat:

 sys/arch/arm/sunxi/sunxi_de2_ccu.c |  27 +++++++++++++++++++++++----
 1 files changed, 23 insertions(+), 4 deletions(-)

diffs (59 lines):

diff -r 9d8f11cf85b0 -r e483654b13ae sys/arch/arm/sunxi/sunxi_de2_ccu.c
--- a/sys/arch/arm/sunxi/sunxi_de2_ccu.c        Tue Jan 22 21:38:08 2019 +0000
+++ b/sys/arch/arm/sunxi/sunxi_de2_ccu.c        Tue Jan 22 21:45:39 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_de2_ccu.c,v 1.1 2019/01/22 20:17:36 jmcneill Exp $ */
+/* $NetBSD: sunxi_de2_ccu.c,v 1.2 2019/01/22 21:45:39 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2019 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -28,7 +28,7 @@
 
 #include <sys/cdefs.h>
 
-__KERNEL_RCSID(1, "$NetBSD: sunxi_de2_ccu.c,v 1.1 2019/01/22 20:17:36 jmcneill Exp $");
+__KERNEL_RCSID(1, "$NetBSD: sunxi_de2_ccu.c,v 1.2 2019/01/22 21:45:39 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -103,19 +103,38 @@
 {
        struct sunxi_ccu_softc * const sc = device_private(self);
        struct fdt_attach_args * const faa = aux;
+       const int phandle = faa->faa_phandle;
        const struct sunxi_de2_ccu_config *conf;
+       struct clk *clk_bus, *clk_mod;
+       struct fdtbus_reset *rst;
 
        sc->sc_dev = self;
-       sc->sc_phandle = faa->faa_phandle;
+       sc->sc_phandle = phandle;
        sc->sc_bst = faa->faa_bst;
 
-       conf = (void *)of_search_compatible(faa->faa_phandle, compat_data)->data;
+       conf = (void *)of_search_compatible(phandle, compat_data)->data;
 
        sc->sc_resets = conf->resets;
        sc->sc_nresets = conf->nresets;
        sc->sc_clks = conf->clks;
        sc->sc_nclks = conf->nclks;
 
+       clk_bus = fdtbus_clock_get(phandle, "bus");
+       if (clk_bus == NULL || clk_enable(clk_bus) != 0) {
+               aprint_error(": couldn't enable bus clock\n");
+               return;
+       }
+       clk_mod = fdtbus_clock_get(phandle, "mod");
+       if (clk_mod == NULL || clk_enable(clk_mod) != 0) {
+               aprint_error(": couldn't enable mod clock\n");
+               return;
+       }
+       rst = fdtbus_reset_get_index(phandle, 0);
+       if (rst == NULL || fdtbus_reset_deassert(rst) != 0) {
+               aprint_error(": couldn't de-assert reset\n");
+               return;
+       }
+
        if (sunxi_ccu_attach(sc) != 0)
                return;