600c507f07
This updates Linux kernel for Synopsys ARC HS38 VDK so it matches real platform and while at it bump kernel version to the latest. Main changes: * Linux kernel v4.9.6 (latest in 4.9.x series in buildroot) * Add support of MMC controller which is used for rootfs * Add support of UIO which is used to communicate with EVSS Now with this update image built by vanilla Buildroot VDK has working UART, MMC, LCD, Ethernet, UIO etc. And while at it we rename defconfing so it: 1) Doesn't mention SMP any more - that's the only option anyways now 2) Matches common naming scheme: vendor_arch_platform Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: Zakharov Vlad <Vladislav.Zakharov@synopsys.com> Cc: Peter Korsgaard <peter@korsgaard.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
71 lines
1.9 KiB
Diff
71 lines
1.9 KiB
Diff
From c9d5ba0157fcfe48c0ec3448bdaecbabb8cefbca Mon Sep 17 00:00:00 2001
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From: Alexey Brodkin <abrodkin@synopsys.com>
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Date: Tue, 31 Jan 2017 19:02:44 +0300
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Subject: [PATCH 2/3] arc: vdk: Add support of MMC controller
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ARC VDK virtual platform emulates host MMC controller (DW Mobile Storage)
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and moreover rootfs is situated on that virtual card.
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Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
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---
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arch/arc/boot/dts/vdk_axs10x_mb.dtsi | 18 ++++++++++++++++++
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arch/arc/configs/vdk_hs38_smp_defconfig | 5 ++++-
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2 files changed, 22 insertions(+), 1 deletion(-)
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diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
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index 99498a4b4216..1953914b9f4f 100644
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--- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
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+++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
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@@ -23,6 +23,12 @@
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#clock-cells = <0>;
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};
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+ mmcclk: mmcclk {
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+ compatible = "fixed-clock";
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+ clock-frequency = <50000000>;
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+ #clock-cells = <0>;
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+ };
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+
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pguclk: pguclk {
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#clock-cells = <0>;
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compatible = "fixed-clock";
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@@ -94,5 +100,17 @@
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interrupts = <5>;
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interrupt-names = "arc_ps2_irq";
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};
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+
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+ mmc@0x15000 {
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+ compatible = "snps,dw-mshc";
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+ reg = <0x15000 0x400>;
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+ num-slots = <1>;
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+ fifo-depth = <1024>;
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+ card-detect-delay = <200>;
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+ clocks = <&apbclk>, <&mmcclk>;
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+ clock-names = "biu", "ciu";
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+ interrupts = <7>;
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+ bus-width = <4>;
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+ };
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};
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};
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diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
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index 00036e814dc1..85c697a7ef1c 100644
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--- a/arch/arc/configs/vdk_hs38_smp_defconfig
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+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
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@@ -79,9 +79,12 @@ CONFIG_USB_OHCI_HCD=y
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CONFIG_USB_OHCI_HCD_PLATFORM=y
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CONFIG_USB_STORAGE=y
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CONFIG_USB_SERIAL=y
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+CONFIG_MMC=y
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+CONFIG_MMC_SDHCI=y
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+CONFIG_MMC_SDHCI_PLTFM=y
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+CONFIG_MMC_DW=y
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# CONFIG_IOMMU_SUPPORT is not set
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CONFIG_EXT3_FS=y
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-CONFIG_EXT4_FS=y
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CONFIG_MSDOS_FS=y
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CONFIG_VFAT_FS=y
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CONFIG_NTFS_FS=y
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--
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2.7.4
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