On 12/28/25 9:12 AM, Niklas Söderlund wrote:
On 2025-12-28 03:03:31 +0100, Marek Vasut wrote:
On 12/28/25 2:03 AM, Niklas Söderlund wrote:
Since commit a2bd99549c61 ("clk: renesas: Tear clock controller down
last before booting OS") enabling the module gated by bit 8 in MSTP4
prevents Linux from booting. Furthermore bits 8 and 7 of MSTP4 where
only documented in early versions of the datasheet and have since been
removed, do the same in the driver to allow Linux to boot.
Suggested-by: Marek Vasut <[email protected]>
Signed-off-by: Niklas Söderlund <[email protected]>
---
drivers/clk/renesas/r8a77995-cpg-mssr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/renesas/r8a77995-cpg-mssr.c
b/drivers/clk/renesas/r8a77995-cpg-mssr.c
index f49faa47cb37..0a59a19cb227 100644
--- a/drivers/clk/renesas/r8a77995-cpg-mssr.c
+++ b/drivers/clk/renesas/r8a77995-cpg-mssr.c
@@ -220,7 +220,7 @@ static const struct mstp_stop_table r8a77995_mstp_table[] =
{
{ 0x03e01000, 0x0, 0x03e01000, 0 },
{ 0x000e2fdc, 0x2000, 0x000e2fd8, 0 },
{ 0xc00014df, 0x400, 0xc00014df, 0 },
- { 0x80000004, 0x180, 0x80000004, 0 },
+ { 0x80000004, 0x0, 0x80000004, 0 },
Should we disable both BIT(8) and BIT(7), or only the BIT(8) that hangs the
system ?
I think we shall remove both as the datasheet removes both, no?
Drop only bit 8 please, bit 7 is set so keep it set.
