From mboxrd@z Thu Jan 1 00:00:00 1970 From: chao.xie@marvell.com (Chao Xie) Date: Fri, 21 Mar 2014 15:01:59 +0800 Subject: [PATCH 2/2] ARM: PJ4: check cpu id for PJ4 cp0 access In-Reply-To: <1395385319-25386-1-git-send-email-chao.xie@marvell.com> References: <1395385319-25386-1-git-send-email-chao.xie@marvell.com> Message-ID: <1395385319-25386-2-git-send-email-chao.xie@marvell.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Check cpu id in pj4_cp0_init. So for no-PJ4 V7 cpus, pj4_cpu0_init just return. This fix will help to make the all the V7 cpus(PJ4 and no-PJ4) use same platform code. Signed-off-by: Chao Xie --- arch/arm/kernel/pj4-cp0.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/kernel/pj4-cp0.c b/arch/arm/kernel/pj4-cp0.c index 679cf4d..fc72086 100644 --- a/arch/arm/kernel/pj4-cp0.c +++ b/arch/arm/kernel/pj4-cp0.c @@ -17,6 +17,7 @@ #include #include #include +#include static int iwmmxt_do(struct notifier_block *self, unsigned long cmd, void *t) { @@ -80,6 +81,9 @@ static int __init pj4_cp0_init(void) { u32 cp_access; + if (!cpu_is_pj4()) + return 0; + cp_access = pj4_cp_access_read() & ~0xf; pj4_cp_access_write(cp_access); -- 1.8.3.2