Martin Blumenstingl fb7d38a70e net: stmmac: dwmac-meson8b: propagate rate changes to the parent clock ... On Meson8b the only valid input clock is MPLL2. The bootloader configures that to run at 500002394Hz which cannot be divided evenly down to 125MHz using the m250_div clock. Currently the common clock framework chooses a m250_div of 2 - with the internal fixed "divide by 10" this results in a RGMII TX clock of 125001197Hz (120Hz above the requested 125MHz). Letting the common clock framework propagate the rate changes up to the parent of m250_mux allows us to get the best possible clock rate. With this patch the common clock framework calculates a rate of very-close-to-250MHz (249999701Hz to be exact) for the MPLL2 clock (which is the mux input). Dividing that by 2 (which is an internal, fixed divider for the RGMII TX clock) gives us an RGMII TX clock of 124999850Hz (which is only 150Hz off the requested 125MHz, compared to 1197Hz based on the MPLL2 rate set by u-boot and the Amlogic GPL kernel sources). SoCs from the Meson GX series are not affected by this change because the input clock is FCLK_DIV2 whose rate cannot be changed (which is fine since it's running at 1GHz, so it's already a multiple of 250MHz and 125MHz). Fixes: 566e825162 ("net: stmmac: add a glue driver for the Amlogic Meson 8b / GXBB DWMAC") Suggested-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> Tested-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-01-17 14:41:05 -05:00
..
3com	3c59x: fix missing dma_mapping_error check and bad ring refill logic	2018-01-03 13:44:14 -05:00
8390	net: 8390: pcnet_cs: mark expected switch fall-through	2017-11-11 19:10:06 +09:00
adaptec
adi	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
aeroflex	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
agere	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
alacritech	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
allwinner
alteon	net: alteon: acenic: clean up indentation issue	2017-12-15 13:28:30 -05:00
altera
amazon	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-09 10:37:00 -05:00
amd	net: amd-xgbe: Get rid of custom hex_dump_to_buffer()	2017-12-20 13:04:45 -05:00
apm
apple
aquantia	net: aquantia: Fix internal stats calculation on rx	2018-01-16 14:40:01 -05:00
arc	net: arc_emac: restart stalled EMAC	2017-12-19 13:25:52 -05:00
atheros	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
aurora	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
broadcom	bnxt_en: don't update cpr->rx_bytes with uninitialized length len	2018-01-16 15:24:29 -05:00
brocade
cadence	net: macb: change GFP_ATOMIC to GFP_KERNEL	2017-12-05 20:08:03 -05:00
calxeda
cavium	net: thunderx: add timestamping support	2018-01-16 14:31:14 -05:00
chelsio	cxgb4: implement ndo_features_check	2018-01-11 10:58:56 -05:00
cirrus	net: cs89x0: add MODULE_LICENSE	2018-01-15 13:27:03 -05:00
cisco	enic: add wq clean up budget	2017-12-26 13:10:07 -05:00
cortina	net: ethernet: Add a driver for Gemini gigabit ethernet	2018-01-15 14:38:55 -05:00
davicom	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
dec	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
dlink	net: dl2k: remove redundant re-assignment to np	2017-11-02 15:52:19 +09:00
emulex	be2net: use ARRAY_SIZE for array sizing calculation on array cmd_priv_map	2018-01-09 11:40:18 -05:00
ezchip
faraday	net: faraday: ftmac100: Use BUG_ON instead of if condition followed by BUG.	2017-10-27 23:53:14 +09:00
freescale	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-11 22:13:42 -05:00
fujitsu
hisilicon	net: hns3: check for NULL function pointer in hns3_nic_set_features	2018-01-12 10:12:33 -05:00
hp
huawei
i825xx	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ibm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-17 00:10:42 -05:00
intel	ixgbevf: Fix kernel-doc format warnings	2018-01-12 08:20:47 -08:00
marvell	net: mvneta: add module EEPROM reading support	2018-01-03 10:38:54 -05:00
mediatek	net: mediatek: remove superfluous pin setup for MT7622 SoC	2017-12-26 12:05:46 -05:00
mellanox	net: sched: red: don't reset the backlog on every stat dump	2018-01-17 14:29:32 -05:00
micrel	net: ks8851: Support DT-provided MAC address	2017-12-19 13:52:39 -05:00
microchip	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
moxa
myricom	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
natsemi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
neterion	net: vxge: Fix some indentation issues	2017-11-20 11:36:30 +09:00
netronome	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-17 00:10:42 -05:00
nuvoton	drivers/net: nuvoton: Convert timers to use timer_setup()	2017-10-27 12:09:15 +09:00
nvidia	forcedeth: remove duplicate structure member in rx	2018-01-08 14:15:15 -05:00
nxp
oki-semi	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
packetengines	drivers/net: packetengines: Convert timers to use timer_setup()	2017-10-28 19:09:49 +09:00
pasemi	net: pasemi: Replace mac address parsing	2017-12-20 12:47:46 -05:00
qlogic	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-17 00:10:42 -05:00
qualcomm	net: qualcomm: rmnet: Add support for GSO	2018-01-08 13:58:50 -05:00
rdc
realtek	r8169: improve runtime pm in general and suspend unused ports	2018-01-09 12:38:56 -05:00
renesas	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-17 00:10:42 -05:00
rocker	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
samsung	drivers/net: sxgbe: Convert timers to use timer_setup()	2017-10-27 12:09:16 +09:00
seeq	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
sfc	sfc: add bits for 25/50/100G supported/advertised speeds	2018-01-10 16:23:38 -05:00
sgi
silan
sis	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
smsc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
socionext	net: netsec: use dma_addr_t for storing dma address	2018-01-14 12:00:23 -05:00
stmicro	net: stmmac: dwmac-meson8b: propagate rate changes to the parent clock	2018-01-17 14:41:05 -05:00
sun	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-11-15 11:56:19 -08:00
synopsys	net: dwc-xlgmac: Get rid of custom hex_dump_to_buffer()	2017-12-21 15:05:33 -05:00
tehuti
ti	net: ethernet: ti: cpdma: correct error handling for chan create	2017-12-13 15:49:53 -05:00
tile	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-11-13 17:56:58 -08:00
toshiba	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
tundra	drivers/net: tundra: Convert timers to use timer_setup()	2017-11-01 12:38:45 +09:00
via	net: via: via-rhine: use %p to format void * address instead of %x	2017-11-29 09:45:24 -05:00
wiznet
xilinx	net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit	2017-11-29 09:43:24 -05:00
xircom
xscale
dnet.c
dnet.h
ec_bhf.c
ethoc.c
fealnx.c	fealnx: Fix building error on MIPS	2017-11-16 22:58:12 +09:00
jme.c
jme.h
Kconfig	net: ethernet: Add a driver for Gemini gigabit ethernet	2018-01-15 14:38:55 -05:00
korina.c	drivers/net: korina: Convert timers to use timer_setup()	2017-10-28 19:09:49 +09:00
lantiq_etop.c
Makefile	net: ethernet: Add a driver for Gemini gigabit ethernet	2018-01-15 14:38:55 -05:00
netx-eth.c