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author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-13 03:28:11 (GMT) |
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committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 07:13:24 (GMT) |
commit | 84ad688473bec2875e171b71040eb9e033c6c206 (patch) | |
tree | cf181129cbdf5d833d55262f759ea2cd9cafaff7 /cpu/arm926ejs/nomadik/gpio.c | |
parent | 8f0fec74ac6d0f3a7134ccebafa1ed9bd8c712ba (diff) | |
download | u-boot-fsl-qoriq-84ad688473bec2875e171b71040eb9e033c6c206.tar.xz |
arm: Move cpu/$CPU to arch/arm/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'cpu/arm926ejs/nomadik/gpio.c')
-rw-r--r-- | cpu/arm926ejs/nomadik/gpio.c | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/cpu/arm926ejs/nomadik/gpio.c b/cpu/arm926ejs/nomadik/gpio.c deleted file mode 100644 index 62a375b..0000000 --- a/cpu/arm926ejs/nomadik/gpio.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * (C) Copyright 2009 Alessandro Rubini - * - * 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., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/gpio.h> - -static unsigned long gpio_base[4] = { - NOMADIK_GPIO0_BASE, - NOMADIK_GPIO1_BASE, - NOMADIK_GPIO2_BASE, - NOMADIK_GPIO3_BASE -}; - -enum gpio_registers { - GPIO_DAT = 0x00, /* data register */ - GPIO_DATS = 0x04, /* data set */ - GPIO_DATC = 0x08, /* data clear */ - GPIO_PDIS = 0x0c, /* pull disable */ - GPIO_DIR = 0x10, /* direction */ - GPIO_DIRS = 0x14, /* direction set */ - GPIO_DIRC = 0x18, /* direction clear */ - GPIO_AFSLA = 0x20, /* alternate function select A */ - GPIO_AFSLB = 0x24, /* alternate function select B */ -}; - -static inline unsigned long gpio_to_base(int gpio) -{ - return gpio_base[gpio / 32]; -} - -static inline u32 gpio_to_bit(int gpio) -{ - return 1 << (gpio & 0x1f); -} - -void nmk_gpio_af(int gpio, int alternate_function) -{ - unsigned long base = gpio_to_base(gpio); - u32 bit = gpio_to_bit(gpio); - u32 afunc, bfunc; - - /* alternate function is 0..3, with one bit per register */ - afunc = readl(base + GPIO_AFSLA) & ~bit; - bfunc = readl(base + GPIO_AFSLB) & ~bit; - if (alternate_function & 1) afunc |= bit; - if (alternate_function & 2) bfunc |= bit; - writel(afunc, base + GPIO_AFSLA); - writel(bfunc, base + GPIO_AFSLB); -} - -void nmk_gpio_dir(int gpio, int dir) -{ - unsigned long base = gpio_to_base(gpio); - u32 bit = gpio_to_bit(gpio); - - if (dir) - writel(bit, base + GPIO_DIRS); - else - writel(bit, base + GPIO_DIRC); -} - -void nmk_gpio_set(int gpio, int val) -{ - unsigned long base = gpio_to_base(gpio); - u32 bit = gpio_to_bit(gpio); - - if (val) - writel(bit, base + GPIO_DATS); - else - writel(bit, base + GPIO_DATC); -} - -int nmk_gpio_get(int gpio) -{ - unsigned long base = gpio_to_base(gpio); - u32 bit = gpio_to_bit(gpio); - - return readl(base + GPIO_DAT) & bit; -} |