[src/trunk]: src/sys/arch/arm/omap Support TI_AM335X gpio to omap2_gpio.c.

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

details:   https://anonhg.NetBSD.org/src/rev/5a74beb77902
branches:  trunk
changeset: 818488:5a74beb77902
user:      kiyohara <kiyohara%NetBSD.org@localhost>
date:      Sat Oct 15 15:11:56 2016 +0000

description:
Support TI_AM335X gpio to omap2_gpio.c.

diffstat:

 sys/arch/arm/omap/files.omap2  |   5 ++---
 sys/arch/arm/omap/omap2_gpio.c |  41 ++++++++++++++++++++++++++++++++---------
 2 files changed, 34 insertions(+), 12 deletions(-)

diffs (108 lines):

diff -r 54387e3a3d7c -r 5a74beb77902 sys/arch/arm/omap/files.omap2
--- a/sys/arch/arm/omap/files.omap2     Sat Oct 15 15:08:59 2016 +0000
+++ b/sys/arch/arm/omap/files.omap2     Sat Oct 15 15:11:56 2016 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files.omap2,v 1.35 2016/10/04 16:10:34 kiyohara Exp $
+#      $NetBSD: files.omap2,v 1.36 2016/10/15 15:11:56 kiyohara Exp $
 #
 # Configuration info for Texas Instruments OMAP2/OMAP3 CPU support
 # Based on xscale/files.pxa2x0
@@ -59,8 +59,7 @@
 # OMAP2 GPIO controllers
 device omapgpio: gpiobus
 attach omapgpio at obio with omap2gpio
-file   arch/arm/omap/omap2_gpio.c              (omap2 | omap3) & !ti_am335x & omapgpio
-file   arch/arm/omap/am335x_gpio.c             ti_am335x & omapgpio
+file   arch/arm/omap/omap2_gpio.c              (omap2 | omap3) & omapgpio
 
 # TI_AM335X (and maybe TI OMAP4) I2C controllers
 device tiiic: i2cbus, i2cexec
diff -r 54387e3a3d7c -r 5a74beb77902 sys/arch/arm/omap/omap2_gpio.c
--- a/sys/arch/arm/omap/omap2_gpio.c    Sat Oct 15 15:08:59 2016 +0000
+++ b/sys/arch/arm/omap/omap2_gpio.c    Sat Oct 15 15:11:56 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: omap2_gpio.c,v 1.18 2016/07/11 14:53:05 kiyohara Exp $ */
+/*     $NetBSD: omap2_gpio.c,v 1.19 2016/10/15 15:11:56 kiyohara 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: omap2_gpio.c,v 1.18 2016/07/11 14:53:05 kiyohara Exp $");
+__KERNEL_RCSID(0, "$NetBSD: omap2_gpio.c,v 1.19 2016/10/15 15:11:56 kiyohara Exp $");
 
 #define _INTR_PRIVATE
 
@@ -50,9 +50,13 @@
 
 #include <sys/bus.h>
 
+#include <arm/omap/am335x_prcm.h>
 #include <arm/omap/omap2_reg.h>
 #include <arm/omap/omap2_obiovar.h>
 #include <arm/omap/omap2_gpio.h>
+#include <arm/omap/omap2_prcm.h>
+#include <arm/omap/sitara_cm.h>
+#include <arm/omap/sitara_cmreg.h>
 #include <arm/pic/picvar.h>
 
 #if NGPIO > 0
@@ -60,6 +64,13 @@
 #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 },
+};
+
 static void gpio_pic_block_irqs(struct pic_softc *, size_t, uint32_t);
 static void gpio_pic_block_irqs2(struct pic_softc *, size_t, uint32_t);
 static void gpio_pic_unblock_irqs(struct pic_softc *, size_t, uint32_t);
@@ -318,16 +329,11 @@
 {
        struct gpio_softc * const gpio = arg;
        uint32_t mask = 1 << pin;
-       uint32_t old, new;
 
-       old = GPIO_READ(gpio, GPIO_DATAOUT);
        if (value)
-               new = old | mask;
+               GPIO_WRITE(gpio, GPIO_SETDATAOUT, mask);
        else
-               new = old & ~mask;
-
-       if (old != new)
-               GPIO_WRITE(gpio, GPIO_DATAOUT, new);
+               GPIO_WRITE(gpio, GPIO_CLEARDATAOUT, mask);
 }
 
 static void
@@ -524,6 +530,23 @@
                aprint_normal(", intr %d", oa->obio_intr);
        }
        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
 #if 0
        config_interrupts(self, gpio_attach1);