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chickens: clear SYS_L2C_ERR_STS

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It's unclear why this is necessary, but it fixes some strange crashes

Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2021-01-30 01:32:29 +09:00
parent c057775ab9
commit ad93d14ee5
1 changed files with 6 additions and 2 deletions
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8
src/chickens.c
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@ -96,6 +96,8 @@
#define CYC_OVRD_IRQ_MODE(x) (((unsigned long)x) << 22)
#define CYC_OVRD_IRQ_MODE_MASK (3UL << 22)
#define SYS_L2C_ERR_STS sys_reg(3, 3, 15, 8, 0)
void init_m1_common(void)
{
int core = mrs(MPIDR_EL1) & 0xff;
@ -104,6 +106,9 @@ void init_m1_common(void)
msr(s3_4_c15_c5_0, core);
msr(s3_4_c15_c1_4, 0x100);
sysop("isb");
// Unknown, seems to fix some crashes
msr(SYS_L2C_ERR_STS, 0);
}
void init_m1_icestorm(void)
@ -167,8 +172,7 @@ void init_m1_firestorm(void)
// Best bit names...
// Maybe: "RF bank and Multipass conflict forward progress widget does not
// handle 3+
// cycle livelock"
// handle 3+ cycle livelock"
reg_set(SYS_HID16, HID16_SPAREBIT0 | HID16_SPAREBIT3 | HID16_ENABLE_MPX_PICK_45 |
HID16_ENABLE_MP_CYCLONE_7);