From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: [PATCH] xen/arm: midway: implement SMP Date: Mon, 18 Nov 2013 13:27:40 +0000 Message-ID: <1384781260-10429-1-git-send-email-julien.grall@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta14.messagelabs.com ([193.109.254.103]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1ViOrm-0004Uo-Lp for xen-devel@lists.xenproject.org; Mon, 18 Nov 2013 13:27:50 +0000 Received: by mail-wg0-f46.google.com with SMTP id x12so6164070wgg.25 for ; Mon, 18 Nov 2013 05:27:48 -0800 (PST) List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: xen-devel@lists.xenproject.org Cc: ian.campbell@citrix.com, stefano.stabellini@eu.citrix.com, Julien Grall , tim@xen.org, andre.przywara@linaro.org, patches@linaro.org List-Id: xen-devel@lists.xenproject.org Signed-off-by: Julien Grall --- xen/arch/arm/platforms/midway.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/xen/arch/arm/platforms/midway.c b/xen/arch/arm/platforms/midway.c index 399056b..3b9fcfc 100644 --- a/xen/arch/arm/platforms/midway.c +++ b/xen/arch/arm/platforms/midway.c @@ -47,6 +47,27 @@ static uint32_t midway_quirks(void) return PLATFORM_QUIRK_DOM0_MAPPING_11; } +static int __init midway_cpu_up(int cpu) +{ + void __iomem *pens; + + pens = ioremap_nocache(0, PAGE_SIZE); + if ( !pens ) + { + dprintk(XENLOG_ERR, "Unable to map midway pens MMIO\n"); + return -EFAULT; + } + + printk("Set cpu pen %u to %"PRIpaddr" (%p)\n", + cpu, __pa(init_secondary), init_secondary); + + writel(__pa(init_secondary), pens + 0x40 + cpu * 0x10); + + iounmap(pens); + + return 0; +} + static const char * const midway_dt_compat[] __initconst = { "calxeda,ecx-2000", @@ -57,6 +78,7 @@ PLATFORM_START(midway, "CALXEDA MIDWAY") .compatible = midway_dt_compat, .reset = midway_reset, .quirks = midway_quirks, + .cpu_up = midway_cpu_up, PLATFORM_END /* -- 1.8.3.1