From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bin Meng Date: Sat, 7 May 2016 07:46:13 -0700 Subject: [U-Boot] [PATCH v2 04/28] x86: irq: Reserve IRQ9 for ACPI in PIC mode In-Reply-To: <1462632397-11224-1-git-send-email-bmeng.cn@gmail.com> References: <1462632397-11224-1-git-send-email-bmeng.cn@gmail.com> Message-ID: <1462632397-11224-5-git-send-email-bmeng.cn@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Reserve IRQ9 which is to be used as SCI interrupt number for ACPI in PIC mode. Signed-off-by: Bin Meng Reviewed-by: Stefan Roese Tested-by: Stefan Roese --- Changes in v2: - Change to use IS_ENABLED() arch/x86/cpu/irq.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/x86/cpu/irq.c b/arch/x86/cpu/irq.c index 2950783..7586fc2 100644 --- a/arch/x86/cpu/irq.c +++ b/arch/x86/cpu/irq.c @@ -121,6 +121,11 @@ static int create_pirq_routing_table(struct udevice *dev) priv->irq_mask = fdtdec_get_int(blob, node, "intel,pirq-mask", PIRQ_BITMAP); + if (IS_ENABLED(CONFIG_GENERATE_ACPI_TABLE)) { + /* Reserve IRQ9 for SCI */ + priv->irq_mask &= ~(1 << 9); + } + if (priv->config == PIRQ_VIA_IBASE) { int ibase_off; -- 1.8.2.1