[src/trunk]: src/sys/arch/arm/omap Don't rely on uboot to enable am335x gpio ...

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

details:   https://anonhg.NetBSD.org/src/rev/cfc408c5d4ba
branches:  trunk
changeset: 342139:cfc408c5d4ba
user:      skrll <skrll%NetBSD.org@localhost>
date:      Tue Dec 08 14:42:24 2015 +0000

description:
Don't rely on uboot to enable am335x gpio clocks

>From jmcneill@

diffstat:

 sys/arch/arm/omap/am335x_gpio.c |  32 ++++++++++++++++++++++++++++++--
 1 files changed, 30 insertions(+), 2 deletions(-)

diffs (65 lines):

diff -r 922ad4c0c21b -r cfc408c5d4ba sys/arch/arm/omap/am335x_gpio.c
--- a/sys/arch/arm/omap/am335x_gpio.c   Tue Dec 08 12:57:16 2015 +0000
+++ b/sys/arch/arm/omap/am335x_gpio.c   Tue Dec 08 14:42:24 2015 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: am335x_gpio.c,v 1.1 2015/11/02 00:48:45 jmcneill Exp $ */
+/*     $NetBSD: am335x_gpio.c,v 1.2 2015/12/08 14:42:24 skrll Exp $    */
 /*-
  * Copyright (c) 2007 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -28,7 +28,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: am335x_gpio.c,v 1.1 2015/11/02 00:48:45 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: am335x_gpio.c,v 1.2 2015/12/08 14:42:24 skrll Exp $");
 
 #define _INTR_PRIVATE
 
@@ -54,11 +54,23 @@
 #include <arm/omap/omap2_obiovar.h>
 #include <arm/omap/omap2_gpio.h>
 
+#include <arm/omap/am335x_prcm.h>
+#include <arm/omap/omap2_prcm.h>
+#include <arm/omap/sitara_cm.h>
+#include <arm/omap/sitara_cmreg.h>
+
 #if NGPIO > 0
 #include <sys/gpio.h>
 #include <dev/gpio/gpiovar.h>
 #endif
 
+static const struct omap_module gpio_module[] = {
+       { 0, 0 },
+       { AM335X_PRCM_CM_PER, CM_PER_GPIO1_CLKCTRL },
+       { AM335X_PRCM_CM_PER, CM_PER_GPIO2_CLKCTRL },
+       { AM335X_PRCM_CM_PER, CM_PER_GPIO3_CLKCTRL },
+};
+
 #define AM335X_GPIO_REVISION           0x000
 #define AM335X_GPIO_SYSCONFIG          0x010
 #define AM335X_GPIO_EIO                        0x020
@@ -232,6 +244,22 @@
 
        aprint_normal("\n");
 
+#ifdef TI_AM335X
+       switch (oa->obio_addr) {
+       case GPIO0_BASE_TI_AM335X:
+               break;
+       case GPIO1_BASE_TI_AM335X:
+               prcm_module_enable(&gpio_module[1]);
+               break;
+       case GPIO2_BASE_TI_AM335X:
+               prcm_module_enable(&gpio_module[2]);
+               break;
+       case GPIO3_BASE_TI_AM335X:
+               prcm_module_enable(&gpio_module[3]);
+               break;
+       }
+#endif
+
 #if NGPIO > 0
        gpio_attach1(self);
 #endif