forked from M-Labs/zynq-rs
zynq::flash: implement stopping LinearAddressing mode
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a8a7f11990
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@ -19,6 +19,15 @@ pub struct Flash<MODE> {
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_mode: PhantomData<MODE>,
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_mode: PhantomData<MODE>,
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}
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}
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impl<MODE> Flash<MODE> {
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fn transition<TO>(self) -> Flash<TO> {
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Flash {
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regs: self.regs,
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_mode: PhantomData,
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}
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}
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}
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impl Flash<()> {
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impl Flash<()> {
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pub fn new(clock: u32) -> Self {
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pub fn new(clock: u32) -> Self {
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Self::enable_clocks(clock);
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Self::enable_clocks(clock);
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@ -185,15 +194,25 @@ impl Flash<()> {
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self.regs.enable.modify(|_, w| w.spi_en(true));
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self.regs.enable.modify(|_, w| w.spi_en(true));
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Flash {
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self.transition()
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regs: self.regs,
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_mode: PhantomData,
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}
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}
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}
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}
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}
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impl Flash<LinearAddressing> {
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impl Flash<LinearAddressing> {
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/// Stop linear addressing mode
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pub fn stop(self) -> Flash<()> {
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self.regs.enable.modify(|_, w| w.spi_en(false));
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// De-assert chip select.
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self.regs.config.modify(|_, w| w.pcs(true));
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self.transition()
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}
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pub fn ptr<T>(&mut self) -> *mut T {
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pub fn ptr<T>(&mut self) -> *mut T {
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0xFC00_0000 as *mut _
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0xFC00_0000 as *mut _
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}
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}
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pub fn size(&self) -> usize {
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32 * 1024 * 1024
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}
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}
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}
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