[U-Boot] [PATCH 2/2] board/nios2-generic: Use altera_pio driver and remove board specific driver

[Joachim Foerster]

Signed-off-by: Joachim Foerster <joachim.foerster at missinglinkelectronics.com>
---
 board/altera/nios2-generic/Makefile |    1 -
 board/altera/nios2-generic/gpio.c   |   71 -----------------------------------
 include/configs/nios2-generic.h     |    4 ++
 3 files changed, 4 insertions(+), 72 deletions(-)
 delete mode 100644 board/altera/nios2-generic/gpio.c

diff --git a/board/altera/nios2-generic/Makefile b/board/altera/nios2-generic/Makefile
index 359f590..59fd465 100644
--- a/board/altera/nios2-generic/Makefile
+++ b/board/altera/nios2-generic/Makefile
@@ -32,7 +32,6 @@ LIB	= $(obj)lib$(BOARD).o
 COBJS-y	:= $(BOARD).o
 COBJS-$(CONFIG_CMD_IDE) += ../common/cfide.o
 COBJS-$(CONFIG_EPLED) += ../common/epled.o
-COBJS-$(CONFIG_GPIO) += gpio.o
 COBJS-$(CONFIG_SEVENSEG) += ../common/sevenseg.o
 
 SOBJS-y	:= text_base.o
diff --git a/board/altera/nios2-generic/gpio.c b/board/altera/nios2-generic/gpio.c
deleted file mode 100644
index 4a30564..0000000
--- a/board/altera/nios2-generic/gpio.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * board gpio driver
- *
- * Copyright (C) 2010 Thomas Chou <thomas at wytron.com.tw>
- * Licensed under the GPL-2 or later.
- */
-#include <common.h>
-#include <asm/io.h>
-
-#ifndef CONFIG_SYS_GPIO_BASE
-
-#define ALTERA_PIO_BASE LED_PIO_BASE
-#define ALTERA_PIO_WIDTH LED_PIO_WIDTH
-#define ALTERA_PIO_DATA (ALTERA_PIO_BASE + 0)
-#define ALTERA_PIO_DIR (ALTERA_PIO_BASE + 4)
-static u32 pio_data_reg;
-static u32 pio_dir_reg;
-
-int gpio_request(unsigned gpio, const char *label)
-{
-	return 0;
-}
-
-int gpio_free(unsigned gpio)
-{
-	return 0;
-}
-
-int gpio_direction_input(unsigned gpio)
-{
-	u32 mask = 1 << gpio;
-	writel(pio_dir_reg &= ~mask, ALTERA_PIO_DIR);
-	return 0;
-}
-
-int gpio_direction_output(unsigned gpio, int value)
-{
-	u32 mask = 1 << gpio;
-	if (value)
-		pio_data_reg |= mask;
-	else
-		pio_data_reg &= ~mask;
-	writel(pio_data_reg, ALTERA_PIO_DATA);
-	writel(pio_dir_reg |= mask, ALTERA_PIO_DIR);
-	return 0;
-}
-
-int gpio_get_value(unsigned gpio)
-{
-	u32 mask = 1 << gpio;
-	if (pio_dir_reg & mask)
-		return (pio_data_reg & mask) ? 1 : 0;
-	else
-		return (readl(ALTERA_PIO_DATA) & mask) ? 1 : 0;
-}
-
-void gpio_set_value(unsigned gpio, int value)
-{
-	u32 mask = 1 << gpio;
-	if (value)
-		pio_data_reg |= mask;
-	else
-		pio_data_reg &= ~mask;
-	writel(pio_data_reg, ALTERA_PIO_DATA);
-}
-
-int gpio_is_valid(int number)
-{
-	return ((unsigned)number) < ALTERA_PIO_WIDTH;
-}
-#endif
diff --git a/include/configs/nios2-generic.h b/include/configs/nios2-generic.h
index 1395939..9ba35e8 100644
--- a/include/configs/nios2-generic.h
+++ b/include/configs/nios2-generic.h
@@ -63,6 +63,10 @@
 /*
  * STATUS LED
  */
+#define CONFIG_ALTERA_PIO
+#define CONFIG_SYS_ALTERA_PIO_NUM	1
+#define CONFIG_SYS_ALTERA_PIO_GPIO_NUM	LED_PIO_WIDTH
+
 #define CONFIG_STATUS_LED		/* Enable status driver */
 #define CONFIG_GPIO_LED		/* Enable GPIO LED driver */
 #define CONFIG_GPIO			/* Enable GPIO driver */
-- 
1.7.6