There is the requirement on the chassis's backplane that when the clocks are enabled, they should not disappear. Resetting theses chips at unit reset also has the side effect that their clocks disappear.
To avoid this side effect, both the ZL chips are reset only in the event of a power cycle.
Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com ---
board/keymile/kmp204x/kmp204x.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/board/keymile/kmp204x/kmp204x.c b/board/keymile/kmp204x/kmp204x.c index 6bc8eb8..638b2a3 100644 --- a/board/keymile/kmp204x/kmp204x.c +++ b/board/keymile/kmp204x/kmp204x.c @@ -94,7 +94,7 @@ int board_early_init_f(void) qrio_wdmask(BFTIC4_RST, true);
/* set the ZL30138's prstcfg to reset at power-up and unit reset only */ - qrio_prstcfg(ZL30158_RST, PRSTCFG_POWUP_UNIT_RST); + qrio_prstcfg(ZL30158_RST, PRSTCFG_POWUP_RST); /* and take it out of reset as soon as possible (needed for Hooper) */ qrio_prst(ZL30158_RST, false, false);
@@ -144,7 +144,7 @@ int misc_init_f(void) qrio_prst(ETH_FRONT_PHY_RST, false, false);
/* set the ZL30343 prstcfg to reset at power-up and unit reset only */ - qrio_prstcfg(ZL30343_RST, PRSTCFG_POWUP_UNIT_RST); + qrio_prstcfg(ZL30343_RST, PRSTCFG_POWUP_RST); /* and enable the WD on it */ qrio_wdmask(ZL30343_RST, true);