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-rw-r--r--arch/mips/alchemy/common/Makefile9
-rw-r--r--arch/mips/alchemy/common/gpio.c201
-rw-r--r--arch/mips/alchemy/common/gpiolib-au1000.c130
-rw-r--r--arch/mips/alchemy/common/reset.c5
4 files changed, 141 insertions, 204 deletions
diff --git a/arch/mips/alchemy/common/Makefile b/arch/mips/alchemy/common/Makefile
index d50d4764eaf..b67fb512529 100644
--- a/arch/mips/alchemy/common/Makefile
+++ b/arch/mips/alchemy/common/Makefile
@@ -7,7 +7,14 @@
obj-y += prom.o irq.o puts.o time.o reset.o \
clocks.o platform.o power.o setup.o \
- sleeper.o dma.o dbdma.o gpio.o
+ sleeper.o dma.o dbdma.o
+
+# optional gpiolib support
+ifeq ($(CONFIG_ALCHEMY_GPIO_INDIRECT),)
+ ifeq ($(CONFIG_GPIOLIB),y)
+ obj-$(CONFIG_ALCHEMY_GPIO_AU1000) += gpiolib-au1000.o
+ endif
+endif
obj-$(CONFIG_PCI) += pci.o
diff --git a/arch/mips/alchemy/common/gpio.c b/arch/mips/alchemy/common/gpio.c
deleted file mode 100644
index 91a9c4436c3..00000000000
--- a/arch/mips/alchemy/common/gpio.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * Copyright (C) 2007-2009, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
- * Architecture specific GPIO support
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Notes :
- * au1000 SoC have only one GPIO line : GPIO1
- * others have a second one : GPIO2
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-
-#include <asm/mach-au1x00/au1000.h>
-#include <asm/gpio.h>
-
-struct au1000_gpio_chip {
- struct gpio_chip chip;
- void __iomem *regbase;
-};
-
-#if !defined(CONFIG_SOC_AU1000)
-static int au1000_gpio2_get(struct gpio_chip *chip, unsigned offset)
-{
- u32 mask = 1 << offset;
- struct au1000_gpio_chip *gpch;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
- return readl(gpch->regbase + AU1000_GPIO2_ST) & mask;
-}
-
-static void au1000_gpio2_set(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- u32 mask = ((GPIO2_OUT_EN_MASK << offset) | (!!value << offset));
- struct au1000_gpio_chip *gpch;
- unsigned long flags;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
- local_irq_save(flags);
- writel(mask, gpch->regbase + AU1000_GPIO2_OUT);
- local_irq_restore(flags);
-}
-
-static int au1000_gpio2_direction_input(struct gpio_chip *chip, unsigned offset)
-{
- u32 mask = 1 << offset;
- u32 tmp;
- struct au1000_gpio_chip *gpch;
- unsigned long flags;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
- local_irq_save(flags);
- tmp = readl(gpch->regbase + AU1000_GPIO2_DIR);
- tmp &= ~mask;
- writel(tmp, gpch->regbase + AU1000_GPIO2_DIR);
- local_irq_restore(flags);
-
- return 0;
-}
-
-static int au1000_gpio2_direction_output(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- u32 mask = 1 << offset;
- u32 out_mask = ((GPIO2_OUT_EN_MASK << offset) | (!!value << offset));
- u32 tmp;
- struct au1000_gpio_chip *gpch;
- unsigned long flags;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
- local_irq_save(flags);
- tmp = readl(gpch->regbase + AU1000_GPIO2_DIR);
- tmp |= mask;
- writel(tmp, gpch->regbase + AU1000_GPIO2_DIR);
- writel(out_mask, gpch->regbase + AU1000_GPIO2_OUT);
- local_irq_restore(flags);
-
- return 0;
-}
-#endif /* !defined(CONFIG_SOC_AU1000) */
-
-static int au1000_gpio1_get(struct gpio_chip *chip, unsigned offset)
-{
- u32 mask = 1 << offset;
- struct au1000_gpio_chip *gpch;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
- return readl(gpch->regbase + AU1000_GPIO1_ST) & mask;
-}
-
-static void au1000_gpio1_set(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- u32 mask = 1 << offset;
- u32 reg_offset;
- struct au1000_gpio_chip *gpch;
- unsigned long flags;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
- if (value)
- reg_offset = AU1000_GPIO1_OUT;
- else
- reg_offset = AU1000_GPIO1_CLR;
-
- local_irq_save(flags);
- writel(mask, gpch->regbase + reg_offset);
- local_irq_restore(flags);
-}
-
-static int au1000_gpio1_direction_input(struct gpio_chip *chip, unsigned offset)
-{
- u32 mask = 1 << offset;
- struct au1000_gpio_chip *gpch;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
- writel(mask, gpch->regbase + AU1000_GPIO1_ST);
-
- return 0;
-}
-
-static int au1000_gpio1_direction_output(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- u32 mask = 1 << offset;
- struct au1000_gpio_chip *gpch;
-
- gpch = container_of(chip, struct au1000_gpio_chip, chip);
-
- writel(mask, gpch->regbase + AU1000_GPIO1_TRI_OUT);
- au1000_gpio1_set(chip, offset, value);
-
- return 0;
-}
-
-struct au1000_gpio_chip au1000_gpio_chip[] = {
- [0] = {
- .regbase = (void __iomem *)SYS_BASE,
- .chip = {
- .label = "au1000-gpio1",
- .direction_input = au1000_gpio1_direction_input,
- .direction_output = au1000_gpio1_direction_output,
- .get = au1000_gpio1_get,
- .set = au1000_gpio1_set,
- .base = 0,
- .ngpio = 32,
- },
- },
-#if !defined(CONFIG_SOC_AU1000)
- [1] = {
- .regbase = (void __iomem *)GPIO2_BASE,
- .chip = {
- .label = "au1000-gpio2",
- .direction_input = au1000_gpio2_direction_input,
- .direction_output = au1000_gpio2_direction_output,
- .get = au1000_gpio2_get,
- .set = au1000_gpio2_set,
- .base = AU1XXX_GPIO_BASE,
- .ngpio = 32,
- },
- },
-#endif
-};
-
-static int __init au1000_gpio_init(void)
-{
- gpiochip_add(&au1000_gpio_chip[0].chip);
-#if !defined(CONFIG_SOC_AU1000)
- gpiochip_add(&au1000_gpio_chip[1].chip);
-#endif
-
- return 0;
-}
-arch_initcall(au1000_gpio_init);
-
diff --git a/arch/mips/alchemy/common/gpiolib-au1000.c b/arch/mips/alchemy/common/gpiolib-au1000.c
new file mode 100644
index 00000000000..1bfa91f939f
--- /dev/null
+++ b/arch/mips/alchemy/common/gpiolib-au1000.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2007-2009, OpenWrt.org, Florian Fainelli <florian@openwrt.org>
+ * GPIOLIB support for Au1000, Au1500, Au1100, Au1550 and Au12x0.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Notes :
+ * au1000 SoC have only one GPIO block : GPIO1
+ * Au1100, Au15x0, Au12x0 have a second one : GPIO2
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-au1x00/au1000.h>
+#include <asm/mach-au1x00/gpio.h>
+
+#if !defined(CONFIG_SOC_AU1000)
+static int gpio2_get(struct gpio_chip *chip, unsigned offset)
+{
+ return alchemy_gpio2_get_value(offset + ALCHEMY_GPIO2_BASE);
+}
+
+static void gpio2_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+ alchemy_gpio2_set_value(offset + ALCHEMY_GPIO2_BASE, value);
+}
+
+static int gpio2_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ return alchemy_gpio2_direction_input(offset + ALCHEMY_GPIO2_BASE);
+}
+
+static int gpio2_direction_output(struct gpio_chip *chip, unsigned offset,
+ int value)
+{
+ return alchemy_gpio2_direction_output(offset + ALCHEMY_GPIO2_BASE,
+ value);
+}
+
+static int gpio2_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ return alchemy_gpio2_to_irq(offset + ALCHEMY_GPIO2_BASE);
+}
+#endif /* !defined(CONFIG_SOC_AU1000) */
+
+static int gpio1_get(struct gpio_chip *chip, unsigned offset)
+{
+ return alchemy_gpio1_get_value(offset + ALCHEMY_GPIO1_BASE);
+}
+
+static void gpio1_set(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ alchemy_gpio1_set_value(offset + ALCHEMY_GPIO1_BASE, value);
+}
+
+static int gpio1_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+ return alchemy_gpio1_direction_input(offset + ALCHEMY_GPIO1_BASE);
+}
+
+static int gpio1_direction_output(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ return alchemy_gpio1_direction_output(offset + ALCHEMY_GPIO1_BASE,
+ value);
+}
+
+static int gpio1_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+ return alchemy_gpio1_to_irq(offset + ALCHEMY_GPIO1_BASE);
+}
+
+struct gpio_chip alchemy_gpio_chip[] = {
+ [0] = {
+ .label = "alchemy-gpio1",
+ .direction_input = gpio1_direction_input,
+ .direction_output = gpio1_direction_output,
+ .get = gpio1_get,
+ .set = gpio1_set,
+ .to_irq = gpio1_to_irq,
+ .base = ALCHEMY_GPIO1_BASE,
+ .ngpio = ALCHEMY_GPIO1_NUM,
+ },
+#if !defined(CONFIG_SOC_AU1000)
+ [1] = {
+ .label = "alchemy-gpio2",
+ .direction_input = gpio2_direction_input,
+ .direction_output = gpio2_direction_output,
+ .get = gpio2_get,
+ .set = gpio2_set,
+ .to_irq = gpio2_to_irq,
+ .base = ALCHEMY_GPIO2_BASE,
+ .ngpio = ALCHEMY_GPIO2_NUM,
+ },
+#endif
+};
+
+static int __init alchemy_gpiolib_init(void)
+{
+ gpiochip_add(&alchemy_gpio_chip[0]);
+#if !defined(CONFIG_SOC_AU1000)
+ gpiochip_add(&alchemy_gpio_chip[1]);
+#endif
+
+ return 0;
+}
+arch_initcall(alchemy_gpiolib_init);
diff --git a/arch/mips/alchemy/common/reset.c b/arch/mips/alchemy/common/reset.c
index 0191c936cb5..4791011e8f9 100644
--- a/arch/mips/alchemy/common/reset.c
+++ b/arch/mips/alchemy/common/reset.c
@@ -27,8 +27,9 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <asm/cacheflush.h>
+#include <linux/gpio.h>
+#include <asm/cacheflush.h>
#include <asm/mach-au1x00/au1000.h>
void au1000_restart(char *command)
@@ -161,7 +162,7 @@ void au1000_halt(void)
#else
printk(KERN_NOTICE "\n** You can safely turn off the power\n");
#ifdef CONFIG_MIPS_MIRAGE
- au_writel((1 << 26) | (1 << 10), GPIO2_OUTPUT);
+ gpio_direction_output(210, 1);
#endif
#ifdef CONFIG_MIPS_DB1200
au_writew(au_readw(0xB980001C) | (1 << 14), 0xB980001C);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 18:37:06 +0000