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Merge pull request #820 from gsomlo/gls-sdcard-fixes 

fixes for boot and (single-block, cmd17-only) Linux driver
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enjoy-digital 2021-02-15 15:44:18 +01:00 committed by GitHub
parent 07dd680a3e 927fd675bc
commit 5291a646d2
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2 changed files with 2 additions and 1 deletions
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2
litex/soc/integration/soc.py
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@ -1480,7 +1480,7 @@ class LiteXSoC(SoC):
sdcard_pads = self.platform.request(name)
# Core
self.submodules.sdphy = SDPHY(sdcard_pads, self.platform.device, self.clk_freq)
self.submodules.sdphy = SDPHY(sdcard_pads, self.platform.device, self.clk_freq, cmd_timeout=10e-1, data_timeout=10e-1)
self.submodules.sdcore = SDCore(self.sdphy)
self.csr.add("sdphy", use_loc_if_exists=True)
self.csr.add("sdcore", use_loc_if_exists=True)

1
litex/soc/software/liblitesdcard/sdcard.c
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@ -106,6 +106,7 @@ void sdcard_set_clk_freq(uint32_t clk_freq, int show) {
uint32_t divider;
divider = clk_freq ? CONFIG_CLOCK_FREQUENCY/clk_freq : 256;
divider = pow2_round_up(divider);
divider <<= 1; /* NOTE: workaround for occasional sdcardboot failure */
divider = min(max(divider, 2), 256);
#ifdef SDCARD_DEBUG
show = 1;