[U-Boot] [PATCH v1 1/2] x86: acpi: Add DMA descriptors for SPI5 on Intel Tangier
Andy Shevchenko
andriy.shevchenko at linux.intel.com
Tue Feb 26 11:43:14 UTC 2019
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 at 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
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