ARM: dts: exynos: Add port map to Exynos5250 AHCI node

Exynos AHCI (SATA) controller has only one port for SATA device. According
to AHCI driver bindings (ata/ahci-platform.txt), if the bootloader doesn't
program the PORTS_IMPL register to proper value, the available port map has
to be provided by 'ports-implemented' device tree property. This fixes
SATA operation on Exynos5250-based boards since Linux v4.5.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index d5e0392b409ecada566fbd2f43c74b0aa57c8608..30f6f5c6bbcb5f8fee4ae670f4fde068bed5342a 100644 (file)
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -346,6 +346,7 @@
                        clock-names = "sata", "sclk_sata";
                        phys = <&sata_phy>;
                        phy-names = "sata-phy";
+                       ports-implemented = <0x1>;
                        status = "disabled";
                };