summaryrefslogtreecommitdiff
path: root/src/cpu/ti/am335x/gpio.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/cpu/ti/am335x/gpio.c')
-rw-r--r--src/cpu/ti/am335x/gpio.c77
1 files changed, 0 insertions, 77 deletions
diff --git a/src/cpu/ti/am335x/gpio.c b/src/cpu/ti/am335x/gpio.c
deleted file mode 100644
index de7f7404f7..0000000000
--- a/src/cpu/ti/am335x/gpio.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-#include <device/mmio.h>
-#include <console/console.h>
-#include <cpu/ti/am335x/gpio.h>
-#include <stdint.h>
-
-static struct am335x_gpio_regs *gpio_regs_and_bit(unsigned int gpio,
- uint32_t *bit)
-{
- unsigned int bank = gpio / AM335X_GPIO_BITS_PER_BANK;
-
- if (bank >= ARRAY_SIZE(am335x_gpio_banks)) {
- printk(BIOS_ERR, "Bad gpio index %d.\n", gpio);
- return NULL;
- }
- *bit = 1 << (gpio % 32);
- return am335x_gpio_banks[bank];
-}
-
-void am335x_disable_gpio_irqs(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(am335x_gpio_banks); i++)
- write32(&am335x_gpio_banks[i]->irqstatus_clr_0, 0xffffffff);
-}
-
-int gpio_direction_input(unsigned int gpio)
-{
- uint32_t bit;
- struct am335x_gpio_regs *regs = gpio_regs_and_bit(gpio, &bit);
-
- if (!regs)
- return -1;
- setbits32(&regs->oe, bit);
- return 0;
-}
-
-int gpio_direction_output(unsigned int gpio, int value)
-{
- uint32_t bit;
- struct am335x_gpio_regs *regs = gpio_regs_and_bit(gpio, &bit);
-
- if (!regs)
- return -1;
- if (value)
- write32(&regs->setdataout, bit);
- else
- write32(&regs->cleardataout, bit);
- clrbits32(&regs->oe, bit);
- return 0;
-}
-
-int gpio_get_value(unsigned int gpio)
-{
- uint32_t bit;
- struct am335x_gpio_regs *regs = gpio_regs_and_bit(gpio, &bit);
-
- if (!regs)
- return -1;
- return (read32(&regs->datain) & bit) ? 1 : 0;
-}
-
-int gpio_set_value(unsigned int gpio, int value)
-{
- uint32_t bit;
- struct am335x_gpio_regs *regs = gpio_regs_and_bit(gpio, &bit);
-
- if (!regs)
- return -1;
- if (value)
- write32(&regs->setdataout, bit);
- else
- write32(&regs->cleardataout, bit);
- return 0;
-}