Re: arm64: dts: rockchip: Disable HS400 for mmc on rk3399-roc-pc
From: Heiko Stübner <heiko@sntech.de>
Date: 2019-11-15 11:19:33
Also in:
linux-arm-kernel, linux-mmc, linux-rockchip, lkml
Hi Markus, Am Freitag, 15. November 2019, 11:37:58 CET schrieb Markus Reichl:
Am 14.11.19 um 14:10 schrieb Heiko Stuebner:quoted
$subject is missing the [PATCH] prefixwill fix.
no need to resend just for this ... just to keep in mind for future patches ;-)
quoted
Am Montag, 11. November 2019, 10:51:04 CET schrieb Markus Reichl:quoted
Working with rootfs on two 128GB mmcs on rk3399-roc-pc. One (mmc name 128G72, one screw hole) works fine in HS400 mode. Other (mmc name DJNB4R, firefly on pcb, two screw holes) gets lots of mmc1: "running CQE recovery", even hangs with damaged fs, when running under heavy load, e.g. compiling kernel. Both run fine with HS200. Disabling CQ with patch mmc: core: Add MMC Command Queue Support kernel parameter [0] did not help. [0] https://gitlab.com/ayufan-repos/rock64/linux-mainline-kernel/commit/54e264154b87dfe32a8359b2726e2d5611adbaf3I'm hoping for some input from other people in Cc but your mail headers also referenced the drive-impendance series from Christoph [0], which it seems we need to poke the phy maintainer again. Did you check if changing the impedance helped (like the signal dampening Philipp described in one of the replies there).checked with &emmc_phy { + drive-impedance-ohm = <33>; gives no improvement:
That is sad ... I guess we really should disable hs400 then ... that may give others more incentive to dive deeper ;-) Heiko
[ 1.688590] mmc1: CQHCI version 5.10 [ 1.714157] mmc1: SDHCI controller on fe330000.sdhci [fe330000.sdhci] using ADMA [ 1.797822] mmc1: Command Queue Engine enabled [ 1.798259] mmc1: new HS400 Enhanced strobe MMC card at address 0001 [ 1.800034] mmcblk1: mmc1:0001 DJNB4R 116 GiB [ 1.800643] mmcblk1boot0: mmc1:0001 DJNB4R partition 1 4.00 MiB [ 1.801408] mmcblk1boot1: mmc1:0001 DJNB4R partition 2 4.00 MiB [ 1.802886] mmcblk1rpmb: mmc1:0001 DJNB4R partition 3 4.00 MiB, chardev (246:0) ... [ 100.118020] mmc1: running CQE recovery [ 100.120890] ------------[ cut here ]------------ [ 100.121310] mmc1: cqhci: spurious TCN for tag 2 [ 100.121802] WARNING: CPU: 0 PID: 232 at drivers/mmc/host/cqhci.c:729 cqhci_irq+0x30c/0x480 [ 100.122530] Modules linked in: rfkill snd_soc_hdmi_codec dw_hdmi_i2s_audio dw_hdmi_cec rockchipdrm crct10dif_ce analogix_dp dw_mipi_dsi snd_soc_simple_card dw_hdmi cec snd_soc_rockchip_i2s snd_soc_simple_card_utils panfrost snd_soc_rockchip_pcm drm_kms_helper snd_soc_core gpu_sched snd_pcm_dmaengine syscopyarea sysfillrect sysimgblt snd_pcm fb_sys_fops snd_timer snd drm soundcore fusb302 tcpm typec rockchip_saradc drm_panel_orientation_quirks ipv6 [ 100.126097] CPU: 0 PID: 232 Comm: kworker/0:2H Not tainted 5.4.0-rc7-next-20191112-00007-g2ad177c77749 #44 [ 100.126946] Hardware name: Firefly ROC-RK3399-PC Board (DT) [ 100.127454] Workqueue: kblockd blk_mq_run_work_fn [ 100.127885] pstate: 20000085 (nzCv daIf -PAN -UAO) [ 100.128318] pc : cqhci_irq+0x30c/0x480 [ 100.128660] lr : cqhci_irq+0x30c/0x480 [ 100.128997] sp : ffff800010003d10 [ 100.129298] x29: ffff800010003d10 x28: 0000000000000000 [ 100.129777] x27: 0000000000000001 x26: ffff8000108e0fe8 [ 100.130257] x25: ffff0000f5ae5c98 x24: ffff800010b7e1a8 [ 100.130737] x23: ffff800010b198c8 x22: ffff0000f5a80000 [ 100.131216] x21: 0000000000000002 x20: 0000000000000002 [ 100.131694] x19: ffff0000f5ae5c80 x18: 0000000000000010 [ 100.132173] x17: 0000000000000000 x16: 0000000000000000 [ 100.132653] x15: ffffffffffffffff x14: ffff800010b198c8 [ 100.133132] x13: ffff800090003a77 x12: ffff800010003a7f [ 100.133612] x11: ffff800010b30000 x10: ffff800010003a00 [ 100.134092] x9 : 00000000ffffffd0 x8 : ffff80001045a060 [ 100.134571] x7 : 000000000000025f x6 : ffff800010b979e2 [ 100.135050] x5 : 0000000000000001 x4 : 0000000000000000 [ 100.135529] x3 : 0000000000000000 x2 : 0000000000000000 [ 100.136007] x1 : e005989da46f2500 x0 : 0000000000000000 [ 100.136486] Call trace: [ 100.136719] cqhci_irq+0x30c/0x480 [ 100.137033] sdhci_arasan_cqhci_irq+0x58/0x80 [ 100.137430] sdhci_irq+0xb8/0xbb8 [ 100.137742] __handle_irq_event_percpu+0x6c/0x170 [ 100.138169] handle_irq_event_percpu+0x34/0x88 [ 100.138575] handle_irq_event+0x44/0xc8 [ 100.138927] handle_fasteoi_irq+0xb4/0x160 [ 100.139302] generic_handle_irq+0x24/0x38 [ 100.139670] __handle_domain_irq+0x60/0xb8 [ 100.140045] gic_handle_irq+0xc0/0x158 [ 100.140389] el1_irq+0xb8/0x180 [ 100.140684] _raw_spin_unlock_irqrestore+0x20/0x48 [ 100.141119] sdhci_cqe_enable+0xec/0x108 [ 100.141478] sdhci_arasan_cqe_enable+0x4c/0x58 [ 100.141880] cqhci_request+0x2d0/0x500 [ 100.142226] mmc_cqe_start_req+0x50/0x60 [ 100.142585] mmc_blk_mq_issue_rq+0x430/0x794 [ 100.142974] mmc_mq_queue_rq+0x104/0x270 [ 100.143332] blk_mq_dispatch_rq_list+0xa8/0x580 [ 100.143746] blk_mq_sched_dispatch_requests+0xf4/0x1d8 [ 100.144210] __blk_mq_run_hw_queue+0xac/0x120 [ 100.144605] blk_mq_run_work_fn+0x1c/0x28 [ 100.144974] process_one_work+0x1e0/0x358 [ 100.145340] worker_thread+0x40/0x488 [ 100.145679] kthread+0x118/0x120 [ 100.145977] ret_from_fork+0x10/0x18 [ 100.146302] ---[ end trace 6277099ad751ed64 ]--- [ 100.213815] mmc1: running CQE recovery [ 100.413933] mmc1: running CQE recoveryquoted
[0] https://patchwork.kernel.org/patch/10835567/ most current v2 it seems is https://patchwork.kernel.org/patch/10842421/quoted
Therefore I propose to disable HS400 mode on roc-pc for now.Hoping for more input :-)Hoping, too. Gruß,quoted
Heikoquoted
Signed-off-by: Markus Reichl <redacted> --- arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi | 2 -- 1 file changed, 2 deletions(-)diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi index 29a50a083c42..33df95e384b4 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi@@ -660,8 +660,6 @@ &sdhci { bus-width = <8>; - mmc-hs400-1_8v; - mmc-hs400-enhanced-strobe; non-removable; status = "okay"; };