linux_dsm_epyc7002/arch/arm
Rafał Miłecki 5d1f2d2c25 ARM: dts: BCM5301X: Set 5 GHz wireless frequency limits on Netgear R8000
Netgear R8000 is a tri-band home router. It has three BCM43602 chipsets
two of them for 5 GHz band. Both seem the same and their firmwares
report the same set of channels. The problem is due to hardware / board
design there are extra limitations that should be respected.

First PHY should be used for U-NII-2 and U-NII-3. Third PHY should be
used for U-NII-1. Using them in a different way may result in wireless
not working or in noticeably reduced performance. Basic version of this
info was provided by Broadcom employee, then it has been verified by me
using original vendor firmware (which has limitations hardcoded in UI).

This patch uses recently introduced ieee80211-freq-limit property to
describe these limitations at DT level.

Referencing PCIe devices in DT required specifying all related bridges.
Below you can see (a bit complex) PCI tree from R8000 that explains all
entries that I needed to put in DT.

0000:00:00.0		14e4:8012	Bridge Device
└─ 0000:01:00.0		14e4:aa52	Network Controller

0001:00:00.0		14e4:8012	Bridge Device
└─ 0001:01:00.0		10b5:8603	Bridge Device
   ├─ 0001:02:01.0	10b5:8603	Bridge Device
   │  └─ 0001:03:00.0	14e4:aa52	Network Controller
   ├─ 0001:02:02.0	10b5:8603	Bridge Device
   │  └─ 0001:04:00.0	14e4:aa52	Network Controller
   ├─ 0001:02:03.0	000d:0000	0x000000
   ├─ 0001:02:04.0	000d:0000	0x000000
   ├─ 0001:02:05.0	000d:0000	0x000000
   ├─ 0001:02:06.0	000d:0000	0x000000
   ├─ (...)
   ├─ 0001:02:1d.0	000d:0000	0x000000
   ├─ 0001:02:1e.0	000d:0000	0x000000
   └─ 0001:02:1f.0	000d:0000	0x000000

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2017-01-18 17:18:27 -08:00
..
boot ARM: dts: BCM5301X: Set 5 GHz wireless frequency limits on Netgear R8000 2017-01-18 17:18:27 -08:00
common Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
configs ARM: SoC defconfig updates for v4.10 2016-12-15 15:41:04 -08:00
crypto crypto: arm/crc32 - accelerated support based on x86 SSE implementation 2016-12-07 20:01:24 +08:00
firmware
include Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2016-12-15 16:06:15 -08:00
kernel Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-12-25 14:05:56 -08:00
kvm Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
lib Merge branches 'clkdev', 'fixes', 'misc' and 'sa1100-base' into for-linus 2016-12-14 11:13:46 +00:00
mach-alpine
mach-artpec ARM: ARTPEC-6: add select MFD_SYSCON to MACH_ARTPEC6 2016-11-26 00:06:34 +01:00
mach-asm9260
mach-aspeed
mach-at91
mach-axxia
mach-bcm
mach-berlin
mach-clps711x
mach-cns3xxx
mach-davinci clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
mach-digicolor
mach-dove
mach-ebsa110
mach-efm32
mach-ep93xx clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
mach-exynos
mach-footbridge clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
mach-gemini
mach-highbank
mach-hisi
mach-imx ARM/imx/mmcd: Fix broken cpu hotplug handling 2016-12-25 10:47:40 +01:00
mach-integrator ARM: SoC platform updates for v4.10 2016-12-15 15:39:02 -08:00
mach-iop13xx Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
mach-iop32x
mach-iop33x
mach-ixp4xx clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
mach-keystone
mach-ks8695
mach-lpc18xx
mach-lpc32xx ARM: SoC platform updates for v4.10 2016-12-15 15:39:02 -08:00
mach-mediatek
mach-meson
mach-mmp clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
mach-moxart
mach-mv78xx0
mach-mvebu cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
mach-mxs
mach-netx
mach-nomadik
mach-nspire
mach-omap1
mach-omap2 clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
mach-orion5x
mach-oxnas
mach-picoxcell
mach-prima2
mach-pxa ARM: SoC platform updates for v4.10 2016-12-15 15:39:02 -08:00
mach-qcom
mach-realview
mach-rockchip
mach-rpc Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
mach-s3c24xx
mach-s3c64xx MTD updates for v4.10-rc1: 2016-12-17 16:41:10 -08:00
mach-s5pv210
mach-sa1100 Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2016-12-15 16:06:15 -08:00
mach-shmobile ARM: SoC driver updates for v4.10 2016-12-15 16:03:25 -08:00
mach-socfpga
mach-spear
mach-sti
mach-stm32
mach-sunxi
mach-tango
mach-tegra
mach-u300
mach-uniphier
mach-ux500
mach-versatile
mach-vexpress
mach-vt8500
mach-w90x900
mach-zx
mach-zynq
mm cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
net
nwfpe
oprofile
plat-iop clocksource: Use a plain u64 instead of cycle_t 2016-12-25 11:04:12 +01:00
plat-omap
plat-orion
plat-pxa
plat-samsung virtio, vhost: new device, fixes, speedups 2016-12-15 18:13:41 -08:00
plat-versatile
probes
tools Merge branch 'syscalls' into for-linus 2016-12-14 11:14:00 +00:00
vdso
vfp cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
xen cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
Kconfig ARM: SoC platform updates for v4.10 2016-12-15 15:39:02 -08:00
Kconfig-nommu
Kconfig.debug
Makefile Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 2016-12-15 16:06:15 -08:00