src/soc/rockchip/rk3288/gpio.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <gpio.h>
   4 #include <soc/addressmap.h>
   5 #include <soc/gpio.h>
   6 #include <soc/grf.h>
   7 #include <soc/pmu.h>
   8 #include <soc/soc.h>
   9
  10 struct rockchip_gpio_regs *gpio_port[] = {
  11         (struct rockchip_gpio_regs *)GPIO0_BASE,
  12         (struct rockchip_gpio_regs *)GPIO1_BASE,
  13         (struct rockchip_gpio_regs *)GPIO2_BASE,
  14         (struct rockchip_gpio_regs *)GPIO3_BASE,
  15         (struct rockchip_gpio_regs *)GPIO4_BASE,
  16         (struct rockchip_gpio_regs *)GPIO5_BASE,
  17         (struct rockchip_gpio_regs *)GPIO6_BASE,
  18         (struct rockchip_gpio_regs *)GPIO7_BASE,
  19         (struct rockchip_gpio_regs *)GPIO8_BASE
  20 };
  21
  22 #define PMU_GPIO_PORT 0
  23
  24 int is_pmu_gpio(gpio_t gpio)
  25 {
  26         if (gpio.port == PMU_GPIO_PORT)
  27                 return 1;
  28         return 0;
  29 }
  30
  31 void *gpio_grf_reg(gpio_t gpio)
  32 {
  33         if (is_pmu_gpio(gpio))
  34                 return &rk3288_pmu->gpio0pull[gpio.bank];
  35         /* There is one pmu gpio, gpio0, so " - 1" */
  36         return &rk3288_grf->gpio1_p[(gpio.port - 1)][gpio.bank];
  37 }
  38
  39 u32 gpio_get_pull_val(gpio_t gpio, enum gpio_pull pull)
  40 {
  41         /* use the default gpio pull bias setting defined in soc/gpio.h */
  42         return pull;
  43 }