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authorJoachim Foerster <joachim.foerster@missinglinkelectronics.com>2011-10-21 15:48:51 +0200
committerThomas Chou <thomas@wytron.com.tw>2011-10-28 09:51:19 +0800
commitdf969b5ffd62449f3625dacb036bef107d5306d4 (patch)
tree2fb05ca0b04c46547ae919bb13e75a897992acd7 /board/altera/nios2-generic/gpio.c
parent03d67e127685f65513e7b78dacbd4ccaf01053f6 (diff)
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board/nios2-generic: Use altera_pio driver and remove board specific driver
Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com> Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Diffstat (limited to 'board/altera/nios2-generic/gpio.c')
-rw-r--r--board/altera/nios2-generic/gpio.c71
1 files changed, 0 insertions, 71 deletions
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@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