From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by canuck.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1RLcfA-0004Pm-TF for barebox@lists.infradead.org; Wed, 02 Nov 2011 15:23:37 +0000 From: Sascha Hauer Date: Wed, 2 Nov 2011 16:23:30 +0100 Message-Id: <1320247410-29411-1-git-send-email-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-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] ARM i.MX53: enable l2 cache To: barebox@lists.infradead.org Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/imx53.c | 13 ++++++------- 1 files changed, 6 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-imx/imx53.c b/arch/arm/mach-imx/imx53.c index 698a05a..7f3c5ba 100644 --- a/arch/arm/mach-imx/imx53.c +++ b/arch/arm/mach-imx/imx53.c @@ -85,16 +85,11 @@ int mx53_init_lowlevel(void) u32 r; /* ARM errata ID #468414 */ - __asm__ __volatile__("mrc 15, 0, %0, c1, c0, 1":"=r"(r)); + __asm__ __volatile__("mrc 15, 0, %0, c1, c0, 1":"=r"(r)); r |= (1 << 5); /* enable L1NEON bit */ + r &= ~(1 << 1); /* explicitly disable L2 cache */ __asm__ __volatile__("mcr 15, 0, %0, c1, c0, 1" : : "r"(r)); - /* explicitly disable L2 cache */ - __asm__ __volatile__("mrc 15, 0, %0, c1, c0, 1":"=r"(r)); - r &= ~(1 << 1); - __asm__ __volatile__("mcr 15, 0, %0, c1, c0, 1" : : "r"(r)); - - /* reconfigure L2 cache aux control reg */ r = 0xc0 | /* tag RAM */ 0x4 | /* data RAM */ @@ -104,6 +99,10 @@ int mx53_init_lowlevel(void) __asm__ __volatile__("mcr 15, 1, %0, c9, c0, 2" : : "r"(r)); + __asm__ __volatile__("mrc 15, 0, %0, c1, c0, 1":"=r"(r)); + r |= 1 << 1; /* enable L2 cache */ + __asm__ __volatile__("mcr 15, 0, %0, c1, c0, 1" : : "r"(r)); + /* * AIPS setup - Only setup MPROTx registers. * The PACR default values are good. -- 1.7.7 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox