From f743a7adbd6e230d66a6206fa115b59fec2d88eb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 22 Nov 2023 01:07:42 +0000
Subject: [PATCH] disable pwm7
---
kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c | 17 +++++++++++------
1 files changed, 11 insertions(+), 6 deletions(-)
diff --git a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
index e1fbd7c..08a058e 100644
--- a/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
+++ b/kernel/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
@@ -159,15 +159,20 @@
static void get_systime(void __iomem *ioaddr, u64 *systime)
{
- u64 ns;
+ u64 ns, sec0, sec1;
- /* Get the TSSS value */
- ns = readl(ioaddr + PTP_STNSR);
- /* Get the TSS and convert sec time value to nanosecond */
- ns += readl(ioaddr + PTP_STSR) * 1000000000ULL;
+ /* Get the TSS value */
+ sec1 = readl_relaxed(ioaddr + PTP_STSR);
+ do {
+ sec0 = sec1;
+ /* Get the TSSS value */
+ ns = readl_relaxed(ioaddr + PTP_STNSR);
+ /* Get the TSS value */
+ sec1 = readl_relaxed(ioaddr + PTP_STSR);
+ } while (sec0 != sec1);
if (systime)
- *systime = ns;
+ *systime = ns + (sec1 * 1000000000ULL);
}
const struct stmmac_hwtimestamp stmmac_ptp = {
--
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