From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1d1756-000636-38 for barebox@lists.infradead.org; Thu, 20 Apr 2017 08:04:50 +0000 From: Sascha Hauer Date: Thu, 20 Apr 2017 10:04:22 +0200 Message-Id: <20170420080422.13210-1-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] ARM: cache-l2x0: honour aux_val when determing way size To: Barebox List l2x0_init() allows to overwrite bits in the AUX_CTRL register using the aux_val/aux_mask arguments. On i.MX35 this is used to pass a correct AUX_CTRL value to overwrite bogus reset values for this register. To make this work we have to apply aux_val/aux_mask before using the AUX_CTRL value to determine the way size. This fixes: 3f7e890da7 ARM: l2x0: Implement L310 support Before this commit the way size was hardcoded to 8. Signed-off-by: Sascha Hauer --- arch/arm/cpu/cache-l2x0.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/arm/cpu/cache-l2x0.c b/arch/arm/cpu/cache-l2x0.c index 0aa2482321..8e0fff66d5 100644 --- a/arch/arm/cpu/cache-l2x0.c +++ b/arch/arm/cpu/cache-l2x0.c @@ -139,6 +139,9 @@ void l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask) cache_id = readl(l2x0_base + L2X0_CACHE_ID); aux = readl(l2x0_base + L2X0_AUX_CTRL); + aux &= aux_mask; + aux |= aux_val; + /* Determine the number of ways */ switch (cache_id & L2X0_CACHE_ID_PART_MASK) { case L2X0_CACHE_ID_PART_L310: @@ -169,10 +172,6 @@ void l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask) if (!(readl(l2x0_base + L2X0_CTRL) & 1)) { /* l2x0 controller is disabled */ - - aux = readl(l2x0_base + L2X0_AUX_CTRL); - aux &= aux_mask; - aux |= aux_val; writel(aux, l2x0_base + L2X0_AUX_CTRL); l2x0_inv_all(); -- 2.11.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox