Patchwork [U-Boot,v5,2/2] gpio: Add GPIO driver for Marvell SoC Armada100

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Submitter Ajay Bhargav
Date Aug. 10, 2011, 11:35 a.m.
Message ID <1312976100-27345-2-git-send-email-ajay.bhargav@einfochips.com>
Download mbox | patch
Permalink /patch/109368/
State Superseded
Headers show

Comments

Ajay Bhargav - Aug. 10, 2011, 11:35 a.m.
This patch adds support for generic GPIO driver framework for Marvell
SoC Armada100.

Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
---
Changes for v2:
	- Added function get_gpio_base
	- GPIO base address added to armada100.h
Changes for v3:
	- gpio register map moved to mvgpio.h
Changes for v4:
	- updated gpio.h
	- removed unwanted defines from armada100.h
Changes for v5:
	- Coding Style cleanup
	- added change history

 arch/arm/include/asm/arch-armada100/gpio.h |   46 ++++++++++++++++++++++++++++
 1 files changed, 46 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/include/asm/arch-armada100/gpio.h
Prafulla Wadaskar - Aug. 10, 2011, 11:47 a.m.
> -----Original Message-----
> From: Ajay Bhargav [mailto:ajay.bhargav@einfochips.com]
> Sent: Wednesday, August 10, 2011 5:05 PM
> To: Prafulla Wadaskar
> Cc: u-boot@lists.denx.de; Ajay Bhargav
> Subject: [PATCH v5 2/2] gpio: Add GPIO driver for Marvell SoC Armada100
> 
> This patch adds support for generic GPIO driver framework for Marvell
> SoC Armada100.
> 
> Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
> ---
> Changes for v2:
> 	- Added function get_gpio_base
> 	- GPIO base address added to armada100.h
> Changes for v3:
> 	- gpio register map moved to mvgpio.h
> Changes for v4:
> 	- updated gpio.h
> 	- removed unwanted defines from armada100.h
> Changes for v5:
> 	- Coding Style cleanup
> 	- added change history
> 
>  arch/arm/include/asm/arch-armada100/gpio.h |   46
> ++++++++++++++++++++++++++++
>  1 files changed, 46 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/include/asm/arch-armada100/gpio.h
> 
> diff --git a/arch/arm/include/asm/arch-armada100/gpio.h
> b/arch/arm/include/asm/arch-armada100/gpio.h
> new file mode 100644
> index 0000000..07c44e3
> --- /dev/null
> +++ b/arch/arm/include/asm/arch-armada100/gpio.h
> @@ -0,0 +1,46 @@
> +/*
> + * (C) Copyright 2011
> + * eInfochips Ltd. <www.einfochips.com>
> + * Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
> + *
> + * (C) Copyright 2010
> + * Marvell Semiconductor <www.marvell.com>
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * 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 program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * 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., 51 Franklin Street, Fifth Floor, Boston,
> + * MA 02110-1301 USA
> + */
> +
> +#ifndef _ASM_ARCH_GPIO_H
> +#define _ASM_ARCH_GPIO_H
> +
> +#include <asm/types.h>
> +#include <asm/arch/armada100.h>
> +#include <mvgpio.h>
> +
> +#define GPIO_TO_REG(gp)		(gp >> 5)
> +#define GPIO_TO_BIT(gp)		(1 << (gp & 0x1F))
> +#define GPIO_VAL(gp, val)	((val >> (gp & 0x1F)) & 0x01)
> +
> +static inline void *get_gpio_base(int bank)
> +{
> +	const unsigned int offset[4] = {0, 4, 8, 0x100};
> +	/* gpio register bank offset - refer Appendix A.36 */
> +	return (struct gpio_reg *)(ARMD1_GPIO_BASE + offset[bank]);
> +}
> +
> +#endif /* _ASM_ARCH_GPIO_H */
> --

Acked-by: Prafulla Wadaskar <Prafulla@marvell.com>

Regards..
Prafulla . .

> 1.7.0.4

Patch

diff --git a/arch/arm/include/asm/arch-armada100/gpio.h b/arch/arm/include/asm/arch-armada100/gpio.h
new file mode 100644
index 0000000..07c44e3
--- /dev/null
+++ b/arch/arm/include/asm/arch-armada100/gpio.h
@@ -0,0 +1,46 @@ 
+/*
+ * (C) Copyright 2011
+ * eInfochips Ltd. <www.einfochips.com>
+ * Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
+ *
+ * (C) Copyright 2010
+ * Marvell Semiconductor <www.marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#ifndef _ASM_ARCH_GPIO_H
+#define _ASM_ARCH_GPIO_H
+
+#include <asm/types.h>
+#include <asm/arch/armada100.h>
+#include <mvgpio.h>
+
+#define GPIO_TO_REG(gp)		(gp >> 5)
+#define GPIO_TO_BIT(gp)		(1 << (gp & 0x1F))
+#define GPIO_VAL(gp, val)	((val >> (gp & 0x1F)) & 0x01)
+
+static inline void *get_gpio_base(int bank)
+{
+	const unsigned int offset[4] = {0, 4, 8, 0x100};
+	/* gpio register bank offset - refer Appendix A.36 */
+	return (struct gpio_reg *)(ARMD1_GPIO_BASE + offset[bank]);
+}
+
+#endif /* _ASM_ARCH_GPIO_H */