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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v1 1/2] x86: acpi: Add DMA descriptors for SPI5 on Intel Tangier
Date: Tue, 26 Feb 2019 13:43:14 +0200	[thread overview]
Message-ID: <20190226114315.32652-1-andriy.shevchenko@linux.intel.com> (raw)

Intel Tangier SoC has a general purpose DMA which can serve to speed up
communications on SPI and I2C serial buses.

Provide DMA descriptors to utilize this capability in the future.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 arch/x86/include/asm/arch-tangier/acpi/southcluster.asl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
index aad1bf0c87..e4d876ab78 100644
--- a/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
+++ b/arch/x86/include/asm/arch-tangier/acpi/southcluster.asl
@@ -189,6 +189,9 @@ Device (PCI0)
                 "\\_SB.PCI0.GPIO", 0, ResourceConsumer, , ) { 112 }
             GpioIo(Exclusive, PullUp, 0, 0, IoRestrictionOutputOnly,
                 "\\_SB.PCI0.GPIO", 0, ResourceConsumer, , ) { 113 }
+
+            FixedDMA(0x000d, 0x0002, Width32bit, )
+            FixedDMA(0x000c, 0x0003, Width32bit, )
         })
 
         Method (_CRS, 0, NotSerialized)
-- 
2.20.1

             reply	other threads:[~2019-02-26 11:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-26 11:43 Andy Shevchenko [this message]
2019-02-26 11:43 ` [U-Boot] [PATCH v1 2/2] x86: acpi: Add DMA descriptors for I2C1 on Intel Tangier Andy Shevchenko
2019-02-28  3:39   ` Bin Meng
2019-03-04  6:24     ` Bin Meng
2019-02-28  3:39 ` [U-Boot] [PATCH v1 1/2] x86: acpi: Add DMA descriptors for SPI5 " Bin Meng
2019-03-04  6:24   ` Bin Meng

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