Move Ti AM335x to dev/extres/clk framework.

Re-implement clocks for these SoC by using now standard extres/clk framework.
This is necessary for future expansion of these. The new  implementation
is (due to the size of the patch) only the initial (minimum) version.
It will be updated/expanded with a subsequent set of particular patches.

This patch is also not tested on OMAP4 based boards (BeagleBone),
so all possible issues should be (and will be) fixed by ASAP once
identified.

Submited by:		Oskar Holmlund (oskar.holmlund@ohdata.se)
Differential Revision:  https://reviews.freebsd.org/D25118

1 files changed, 4 insertions, 13 deletions

diff --git a/sys/dev/uart/uart_dev_ti8250.c b/sys/dev/uart/uart_dev_ti8250.c
index f5a230908da3..ebe777ed7fdb 100644
--- a/sys/dev/uart/uart_dev_ti8250.c
+++ b/sys/dev/uart/uart_dev_ti8250.c
@@ -39,9 +39,6 @@ __FBSDID("$FreeBSD$");
 #include <sys/sysctl.h>
 #include <machine/bus.h>
 
-#include <arm/ti/ti_prcm.h>
-#include <arm/ti/ti_hwmods.h>
-
 #include <dev/fdt/fdt_common.h>
 #include <dev/ofw/ofw_bus.h>
 #include <dev/ofw/ofw_bus_subr.h>
@@ -52,6 +49,8 @@ __FBSDID("$FreeBSD$");
 #include <dev/uart/uart_bus.h>
 #include <dev/uart/uart_dev_ns8250.h>
 
+#include <arm/ti/ti_sysc.h>
+
 #include "uart_if.h"
 
 /*
@@ -74,16 +73,8 @@ static int
 ti8250_bus_probe(struct uart_softc *sc)
 {
 	int status;
-	clk_ident_t clkid;
-
-	/* Enable clocks for this device.  We can't continue if that fails.  */
-	clkid = ti_hwmods_get_clock(sc->sc_dev);
-	if (clkid == INVALID_CLK_IDENT) {
-		device_printf(sc->sc_dev,
-		    "failed to get clock based on hwmods\n");
-		clkid = UART1_CLK + device_get_unit(sc->sc_dev);
-	}
-	if ((status = ti_prcm_clk_enable(clkid)) != 0)
+
+	if ((status = ti_sysc_clock_enable(device_get_parent(sc->sc_dev))) != 0)
 		return (status);
 
 	/*