5fd9df0ed0
Add license information to files. Mostly automated with:
find src/ -name '*.[c,h]' | xargs sed -i '1s,^,// SPDX-License-Identifier: GPL-3.0-only\n\n,'
find src/ -name '*.mk' | xargs sed -i '1s,^,# SPDX-License-Identifier: GPL-3.0-only\n\n,'
31 lines
557 B
C
31 lines
557 B
C
// SPDX-License-Identifier: GPL-3.0-only
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#include <board/pwm.h>
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void pwm_init(void) {
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// Set T0CHSEL to TACH0A and T1CHSEL to TACH1A
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TSWCTLR = 0;
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// Disable PWM
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ZTIER = 0;
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// Set prescalar clock frequency to EC clock
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PCFSR = 0b01;
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// Use C0CPRS and CTR0 for all channels
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PCSSGL = 0;
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PCSSGH = 0;
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// Set clock prescaler to 0 + 1
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C0CPRS = 0;
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// Set cycle time to 255 + 1
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CTR0 = 255;
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// Turn off CPU fan (temperature control in peci_event)
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DCR2 = 0;
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// Enable PWM
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ZTIER = (1 << 1);
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}
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