diff options
Diffstat (limited to 'bsps/arm/beagle/pwm/pwm.c')
| -rw-r--r-- | bsps/arm/beagle/pwm/pwm.c | 60 |
1 files changed, 2 insertions, 58 deletions
diff --git a/bsps/arm/beagle/pwm/pwm.c b/bsps/arm/beagle/pwm/pwm.c index 81ace1254e..4bd09293e8 100644 --- a/bsps/arm/beagle/pwm/pwm.c +++ b/bsps/arm/beagle/pwm/pwm.c @@ -23,6 +23,7 @@ #include <bsp/gpio.h> #include <bsp/bbb-gpio.h> #include <bsp.h> +#include <bsp/pwmss.h> #include <bsp/bbb-pwm.h> #include <bsp/beagleboneblack.h> @@ -38,7 +39,7 @@ * @param pwm_id It is the instance number of EPWM of pwm sub system. * * @return Base Address of respective pwm instant. -*/ + */ static uint32_t select_pwm(BBB_PWMSS pwm_id) { uint32_t baseAddr=0; @@ -181,63 +182,6 @@ static bool pwm_clock_enable(BBB_PWMSS pwm_id) return status; } -/** - * @brief This function configures the L3 and L4_PER system clocks. - * It also configures the system clocks for the specified ePWMSS - * instance. - * - * @param pwmss_id The instance number of ePWMSS whose system clocks - * have to be configured. - * - * 'pwmss_id' can take one of the following values: - * (0 <= pwmss_id <= 2) - * - * @return True if successful - * False if Unsuccessful - */ -static bool pwmss_module_clk_config(BBB_PWMSS pwmss_id) -{ - bool is_valid = true; - - if(pwmss_id == BBB_PWMSS0) { - const uint32_t is_functional = AM335X_CM_PER_EPWMSS0_CLKCTRL_IDLEST_FUNC << - AM335X_CM_PER_EPWMSS0_CLKCTRL_IDLEST_SHIFT; - const uint32_t clkctrl = AM335X_CM_PER_ADDR + AM335X_CM_PER_EPWMSS0_CLKCTRL; - const uint32_t idle_bits = AM335X_CM_PER_EPWMSS0_CLKCTRL_IDLEST; - const uint32_t is_enable = AM335X_CM_PER_EPWMSS0_CLKCTRL_MODULEMODE_ENABLE; - const uint32_t module_mode = AM335X_CM_PER_EPWMSS0_CLKCTRL_MODULEMODE; - - REG(clkctrl) |= is_enable; - while((REG(clkctrl) & module_mode) != is_enable); - while((REG(clkctrl) & idle_bits) != is_functional); - } - else if(pwmss_id == BBB_PWMSS1) { - const uint32_t is_functional = AM335X_CM_PER_EPWMSS1_CLKCTRL_IDLEST_FUNC << - AM335X_CM_PER_EPWMSS1_CLKCTRL_IDLEST_SHIFT; - const uint32_t clkctrl = AM335X_CM_PER_ADDR + AM335X_CM_PER_EPWMSS1_CLKCTRL; - const uint32_t idle_bits = AM335X_CM_PER_EPWMSS1_CLKCTRL_IDLEST; - const uint32_t is_enable = AM335X_CM_PER_EPWMSS1_CLKCTRL_MODULEMODE_ENABLE; - const uint32_t module_mode = AM335X_CM_PER_EPWMSS1_CLKCTRL_MODULEMODE; - - REG(clkctrl) |= is_enable; - while((REG(clkctrl) & module_mode) != is_enable); - while((REG(clkctrl) & idle_bits) != is_functional); - } else if(pwmss_id == BBB_PWMSS2) { - const uint32_t is_functional = AM335X_CM_PER_EPWMSS2_CLKCTRL_IDLEST_FUNC << - AM335X_CM_PER_EPWMSS2_CLKCTRL_IDLEST_SHIFT; - const uint32_t clkctrl = AM335X_CM_PER_ADDR + AM335X_CM_PER_EPWMSS2_CLKCTRL; - const uint32_t idle_bits = AM335X_CM_PER_EPWMSS2_CLKCTRL_IDLEST; - const uint32_t is_enable = AM335X_CM_PER_EPWMSS2_CLKCTRL_MODULEMODE_ENABLE; - const uint32_t module_mode = AM335X_CM_PER_EPWMSS2_CLKCTRL_MODULEMODE; - - REG(clkctrl) |= is_enable; - while((REG(clkctrl) & module_mode) != is_enable); - while((REG(clkctrl) & idle_bits) != is_functional); - } else - is_valid = false; - return is_valid; -} - bool beagle_pwm_init(BBB_PWMSS pwmss_id) { const bool id_is_valid = pwmss_id < BBB_PWMSS_COUNT; |