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rust/sysctl: clock_get_freq for all clocks

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This commit is contained in:
Wladimir J. van der Laan 2019-05-18 20:20:22 +00:00
parent ce28856653
commit 3b70f3cdc1
1 changed files with 53 additions and 25 deletions
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78
rust/k210-shared/src/soc/sysctl.rs
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@ -284,6 +284,7 @@ pub fn sysctl_clock_disable(clock: clock) {
clock_device_en(clock, false);
}
/// Set clock divider
pub fn clock_set_threshold(which: threshold, threshold: u32) {
unsafe {
let ptr = pac::SYSCTL::ptr();
@ -328,6 +329,7 @@ pub fn clock_set_threshold(which: threshold, threshold: u32) {
}
}
/// Get clock divider
pub fn clock_get_threshold(which: threshold) -> u32 {
unsafe {
let ptr = pac::SYSCTL::ptr();
@ -498,6 +500,7 @@ pub fn clock_get_freq(clock: clock) -> u32 {
// to some kind of clock tree
// TODO: clock_source_get_freq(ACLK) calls back into here, don't do this
match clock {
clock::IN0 => clock_source_get_freq(clock_source::IN0),
clock::PLL0 => clock_source_get_freq(clock_source::PLL0),
clock::PLL1 => clock_source_get_freq(clock_source::PLL1),
clock::PLL2 => clock_source_get_freq(clock_source::PLL2),
@ -509,35 +512,60 @@ pub fn clock_get_freq(clock: clock) -> u32 {
}
_ => panic!("invalid cpu clock select"),
},
clock::SPI0 => {
let source = clock_source_get_freq(clock_source::PLL0);
source / ((clock_get_threshold(threshold::SPI0) + 1) * 2)
clock::SRAM0 => clock_source_get_freq(clock_source::ACLK) / (clock_get_threshold(threshold::SRAM0) + 1),
clock::SRAM1 => clock_source_get_freq(clock_source::ACLK) / (clock_get_threshold(threshold::SRAM1) + 1),
clock::ROM => clock_source_get_freq(clock_source::ACLK) / (clock_get_threshold(threshold::ROM) + 1),
clock::DVP => clock_source_get_freq(clock_source::ACLK) / (clock_get_threshold(threshold::DVP) + 1),
clock::APB0 | clock::GPIO | clock::UART1 | clock::UART2 | clock::UART3 | clock::FPIOA | clock::SHA =>
clock_source_get_freq(clock_source::ACLK) / (clock_get_threshold(threshold::APB0) + 1),
clock::APB1 | clock::AES | clock::OTP =>
clock_source_get_freq(clock_source::ACLK) / (clock_get_threshold(threshold::APB1) + 1),
clock::APB2 => clock_source_get_freq(clock_source::ACLK) / (clock_get_threshold(threshold::APB2) + 1),
clock::AI => clock_source_get_freq(clock_source::PLL1) / (clock_get_threshold(threshold::AI) + 1),
clock::I2S0 => clock_source_get_freq(clock_source::PLL2) / ((clock_get_threshold(threshold::I2S0) + 1) * 2),
clock::I2S1 => clock_source_get_freq(clock_source::PLL2) / ((clock_get_threshold(threshold::I2S1) + 1) * 2),
clock::I2S2 => clock_source_get_freq(clock_source::PLL2) / ((clock_get_threshold(threshold::I2S2) + 1) * 2),
clock::WDT0 => clock_source_get_freq(clock_source::IN0) / ((clock_get_threshold(threshold::WDT0) + 1) * 2),
clock::WDT1 => clock_source_get_freq(clock_source::IN0) / ((clock_get_threshold(threshold::WDT1) + 1) * 2),
clock::SPI0 => clock_source_get_freq(clock_source::PLL0) / ((clock_get_threshold(threshold::SPI0) + 1) * 2),
clock::SPI1 => clock_source_get_freq(clock_source::PLL0) / ((clock_get_threshold(threshold::SPI1) + 1) * 2),
clock::SPI2 => clock_source_get_freq(clock_source::PLL0) / ((clock_get_threshold(threshold::SPI2) + 1) * 2),
clock::I2C0 => clock_source_get_freq(clock_source::PLL0) / ((clock_get_threshold(threshold::I2C0) + 1) * 2),
clock::I2C1 => clock_source_get_freq(clock_source::PLL0) / ((clock_get_threshold(threshold::I2C1) + 1) * 2),
clock::I2C2 => clock_source_get_freq(clock_source::PLL0) / ((clock_get_threshold(threshold::I2C2) + 1) * 2),
clock::SPI3 => {
let source = match clock_get_clock_select(clock_select::SPI3) {
0 => clock_source_get_freq(clock_source::IN0),
1 => clock_source_get_freq(clock_source::PLL0),
_ => panic!("unimplemented clock source"),
};
source / ((clock_get_threshold(threshold::SPI3) + 1) * 2)
}
clock::I2C0 => {
let source = clock_source_get_freq(clock_source::PLL0);
source / ((clock_get_threshold(threshold::I2C0) + 1) * 2)
clock::TIMER0 => {
let source = match clock_get_clock_select(clock_select::TIMER0) {
0 => clock_source_get_freq(clock_source::IN0),
1 => clock_source_get_freq(clock_source::PLL0),
_ => panic!("unimplemented clock source"),
};
source / ((clock_get_threshold(threshold::TIMER0) + 1) * 2)
}
clock::I2C1 => {
let source = clock_source_get_freq(clock_source::PLL0);
source / ((clock_get_threshold(threshold::I2C1) + 1) * 2)
clock::TIMER1 => {
let source = match clock_get_clock_select(clock_select::TIMER1) {
0 => clock_source_get_freq(clock_source::IN0),
1 => clock_source_get_freq(clock_source::PLL0),
_ => panic!("unimplemented clock source"),
};
source / ((clock_get_threshold(threshold::TIMER1) + 1) * 2)
}
clock::I2C2 => {
let source = clock_source_get_freq(clock_source::PLL0);
source / ((clock_get_threshold(threshold::I2C2) + 1) * 2)
clock::TIMER2 => {
let source = match clock_get_clock_select(clock_select::TIMER2) {
0 => clock_source_get_freq(clock_source::IN0),
1 => clock_source_get_freq(clock_source::PLL0),
_ => panic!("unimplemented clock source"),
};
source / ((clock_get_threshold(threshold::TIMER2) + 1) * 2)
}
clock::APB0 => {
let source = clock_source_get_freq(clock_source::ACLK);
source / (clock_get_threshold(threshold::APB0) + 1)
}
clock::APB1 => {
let source = clock_source_get_freq(clock_source::ACLK);
source / (clock_get_threshold(threshold::APB1) + 1)
}
clock::APB2 => {
let source = clock_source_get_freq(clock_source::ACLK);
source / (clock_get_threshold(threshold::APB2) + 1)
}
_ => panic!("not implemented"),
clock::RTC => clock_source_get_freq(clock_source::IN0),
}
}