From b38736ac01e34491f339e12f9883dc4a8cc3d358 Mon Sep 17 00:00:00 2001 From: Herve Codina Date: Fri, 17 Feb 2023 15:56:39 +0100 Subject: [PATCH] powerpc/8xx: Use a larger CPM1 command check mask The CPM1 command mask is defined for use with the standard CPM1 command register as described in the user's manual: 0 |1 3|4 7|8 11|12 14| 15| RST| - |OPCODE|CH_NUM| - |FLG| In the QMC extension the CPM1 command register is redefined (QMC supplement user's manuel) with the following mapping: 0 |1 3|4 7|8 13|14| 15| RST|QMC OPCODE| 1110|CHANNEL_NUMBER| -|FLG| Extend the check command mask in order to support both the standard CH_NUM field and the QMC extension CHANNEL_NUMBER field. Signed-off-by: Herve Codina Acked-by: Christophe Leroy Acked-by: Michael Ellerman Link: https://lore.kernel.org/r/20230217145645.1768659-5-herve.codina@bootlin.com Signed-off-by: Mark Brown --- arch/powerpc/platforms/8xx/cpm1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/8xx/cpm1.c b/arch/powerpc/platforms/8xx/cpm1.c index bb38c8d..c57fcda 100644 --- a/arch/powerpc/platforms/8xx/cpm1.c +++ b/arch/powerpc/platforms/8xx/cpm1.c @@ -94,7 +94,7 @@ int cpm_command(u32 command, u8 opcode) int i, ret; unsigned long flags; - if (command & 0xffffff0f) + if (command & 0xffffff03) return -EINVAL; spin_lock_irqsave(&cmd_lock, flags); -- 2.7.4