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f5919b65d4
Patch generation process: - rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable - git format-patch v4.14.89 Patches skipped during rebase: - lan78xx: Read MAC address from DT if present - lan78xx: Enable LEDs and auto-negotiation - Revert "softirq: Let ksoftirqd do its job" - sc16is7xx: Fix for multi-channel stall - lan78xx: Ignore DT MAC address if already valid - lan78xx: Simple patch to prevent some crashes - tcp_write_queue_purge clears all the SKBs in the write queue - Revert "lan78xx: Simple patch to prevent some crashes" - lan78xx: Connect phy early - Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro - Revert "Revert "softirq: Let ksoftirqd do its job"" - ASoC: cs4265: SOC_SINGLE register value error fix - Revert "ASoC: cs4265: SOC_SINGLE register value error fix" - Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends" - Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"" Patches dropped after rebase: - net: Add non-mainline source for rtl8192cu wlan - net: Fix rtl8192cu build errors on other platforms - brcm: adds support for BCM43341 wifi - brcmfmac: Mute expected startup 'errors' - ARM64: Fix build break for RTL8187/RTL8192CU wifi - ARM64: Enable RTL8187/RTL8192CU wifi in build config - This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator - brcmfmac: add CLM download support - brcmfmac: request_firmware_direct is quieter - Sets the BCDC priority to constant 0 - brcmfmac: Disable ARP offloading when promiscuous - brcmfmac: Avoid possible out-of-bounds read - brcmfmac: Delete redundant length check - net: rtl8192cu: Normalize indentation - net: rtl8192cu: Fix implicit fallthrough warnings - Revert "Sets the BCDC priority to constant 0" - media: cxd2880: Bump to match 4.18.y version - media: cxd2880-spi: Bump to match 4.18.y version - Revert "mm: alloc_contig: re-allow CMA to compact FS pages" - Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages"" - cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT - 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch - 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch Make I2C built-in instead of modular as in upstream defconfig; also the easiest way to get MFD_ARIZONA enabled, which is required by kmod-sound-soc-rpi-cirrus. Add missing compatible strings from 4.9/960-add-rasbperrypi-compatible.patch, using upstream names for compute modules. Add extra patch to enable the LEDs on lan78xx. Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y) Runtime-tested: bcm2708, bcm2710 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
52 lines
2.1 KiB
Diff
52 lines
2.1 KiB
Diff
From eadd32681787b1828ff92ef5046db6568d52ad55 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Tue, 29 May 2018 10:52:11 +0100
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Subject: [PATCH 308/454] overlays: Add sdtweak features for network booting
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It has been observed that a Pi with no SD card will poll the interface
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continuously, using up to 10% CPU. Add some new parameters to the
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sdtweak overlay to control this behaviour:
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poll_once Only look for a card once, at boot time. If none is found
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then the interface is effectively disabled.
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enable Set to "off" or "no" to completely disable the interface.
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See: https://github.com/raspberrypi/linux/issues/2567
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/overlays/README | 10 ++++++++++
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arch/arm/boot/dts/overlays/sdtweak-overlay.dts | 2 ++
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2 files changed, 12 insertions(+)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -1618,6 +1618,16 @@ Params: overclock_50 Clock (i
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debug Enable debug output (default off)
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+ poll_once Looks for a card once after booting. Useful
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+ for network booting scenarios to avoid the
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+ overhead of continuous polling. N.B. Using
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+ this option restricts the system to using a
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+ single card per boot (or none at all).
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+ (default off)
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+
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+ enable Set to off to completely disable the interface
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+ (default on)
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+
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Name: smi
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Info: Enables the Secondary Memory Interface peripheral. Uses GPIOs 2-25!
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--- a/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/sdtweak-overlay.dts
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@@ -19,5 +19,7 @@
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force_pio = <&frag0>,"brcm,force-pio?";
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pio_limit = <&frag0>,"brcm,pio-limit:0";
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debug = <&frag0>,"brcm,debug?";
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+ enable = <&frag0>,"status";
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+ poll_once = <&frag0>,"non-removable?";
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};
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};
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