From: BOUGH CHEN <haibo.chen@nxp.com>
To: "ulf.hansson@linaro.org" <ulf.hansson@linaro.org>,
"adrian.hunter@intel.com" <adrian.hunter@intel.com>
Cc: "shawnguo@kernel.org" <shawnguo@kernel.org>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
dl-linux-imx <linux-imx@nxp.com>, BOUGH CHEN <haibo.chen@nxp.com>,
"linus.walleij@linaro.org" <linus.walleij@linaro.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>
Subject: [PATCH v2 11/14] mmc: sdhci-esdhc-imx: clear pending interrupt and halt cqhci
Date: Tue, 3 Dec 2019 12:54:47 +0000 [thread overview]
Message-ID: <20191203130120.11511-12-haibo.chen@nxp.com> (raw)
In-Reply-To: <20191203130120.11511-1-haibo.chen@nxp.com>
On i.MX8MM, we are running Dual Linux OS, with 1st Linux using SD Card
as rootfs storage, 2nd Linux using eMMC as rootfs storage. We let the
the 1st linux configure power/clock for the 2nd Linux.
When the 2nd Linux is booting into rootfs stage, we let the 1st Linux
to destroy the 2nd linux, then restart the 2nd linux, we met SDHCI dump
as following, after we clear the pending interrupt and halt CQCTL, issue
gone.
[ 1.334594] mmc2: Got command interrupt 0x00000001 even though no command operation was in progress.
[ 1.334595] mmc2: sdhci: ============ SDHCI REGISTER DUMP ===========
[ 1.334599] mmc2: sdhci: Sys addr: 0xa05dcc00 | Version: 0x00000002
[ 1.345538] mmc2: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000000
[ 1.345541] mmc2: sdhci: Argument: 0x00018000 | Trn mode: 0x00000033
[ 1.345543] mmc2: sdhci: Present: 0x01f88008 | Host ctl: 0x00000031
[ 1.345547] mmc2: sdhci: Power: 0x00000002 | Blk gap: 0x00000080
[ 1.357903] mmc2: sdhci: Wake-up: 0x00000008 | Clock: 0x0000003f
[ 1.357905] mmc2: sdhci: Timeout: 0x0000008f | Int stat: 0x00000000
[ 1.357908] mmc2: sdhci: Int enab: 0x107f100b | Sig enab: 0x107f100b
[ 1.357911] mmc2: sdhci: AC12 err: 0x00000000 | Slot int: 0x00000502
[ 1.370268] mmc2: sdhci: Caps: 0x07eb0000 | Caps_1: 0x0000b400
[ 1.370270] mmc2: sdhci: Cmd: 0x00000d1a | Max curr: 0x00ffffff
[ 1.370273] mmc2: sdhci: Resp[0]: 0x00000b00 | Resp[1]: 0xffffffff
[ 1.370276] mmc2: sdhci: Resp[2]: 0x328f5903 | Resp[3]: 0x00d00f00
[ 1.382132] mmc2: sdhci: Host ctl2: 0x00000000
[ 1.382135] mmc2: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0xa2040208
[ 2.060932] mmc2: Unexpected interrupt 0x00004000.
[ 2.065538] mmc2: sdhci: ============ SDHCI REGISTER DUMP ===========
[ 2.071720] mmc2: sdhci: Sys addr: 0x00000000 | Version: 0x00000002
[ 2.077902] mmc2: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000001
[ 2.084083] mmc2: sdhci: Argument: 0x00000000 | Trn mode: 0x00000000
[ 2.090264] mmc2: sdhci: Present: 0x01f88009 | Host ctl: 0x00000011
[ 2.096446] mmc2: sdhci: Power: 0x00000002 | Blk gap: 0x00000080
[ 2.102627] mmc2: sdhci: Wake-up: 0x00000008 | Clock: 0x000010ff
[ 2.108809] mmc2: sdhci: Timeout: 0x0000008f | Int stat: 0x00004000
[ 2.114990] mmc2: sdhci: Int enab: 0x007f1003 | Sig enab: 0x007f1003
[ 2.121171] mmc2: sdhci: AC12 err: 0x00000000 | Slot int: 0x00000502
[ 2.127353] mmc2: sdhci: Caps: 0x07eb0000 | Caps_1: 0x0000b400
[ 2.133534] mmc2: sdhci: Cmd: 0x0000371a | Max curr: 0x00ffffff
[ 2.139715] mmc2: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0xffffffff
[ 2.145896] mmc2: sdhci: Resp[2]: 0x328f5903 | Resp[3]: 0x00d00f00
[ 2.152077] mmc2: sdhci: Host ctl2: 0x00000000
[ 2.156342] mmc2: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x00000000
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 0a8a7b748341..ae1538e30b23 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1203,6 +1203,7 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
+ struct cqhci_host *cq_host = host->mmc->cqe_private;
int tmp;
if (esdhc_is_usdhc(imx_data)) {
@@ -1279,6 +1280,21 @@ static void sdhci_esdhc_imx_hwinit(struct sdhci_host *host)
tmp &= ~ESDHC_STD_TUNING_EN;
writel(tmp, host->ioaddr + ESDHC_TUNING_CTRL);
}
+
+ /*
+ * On i.MX8MM, we are running Dual Linux OS, with 1st Linux using SD Card
+ * as rootfs storage, 2nd Linux using eMMC as rootfs storage. We let the
+ * the 1st linux configure power/clock for the 2nd Linux.
+ *
+ * When the 2nd Linux is booting into rootfs stage, we let the 1st Linux
+ * to destroy the 2nd linux, then restart the 2nd linux, we met SDHCI dump.
+ * After we clear the pending interrupt and halt CQCTL, issue gone.
+ */
+ if (cq_host) {
+ tmp = cqhci_readl(cq_host, CQHCI_IS);
+ cqhci_writel(cq_host, tmp, CQHCI_IS);
+ cqhci_writel(cq_host, CQHCI_HALT, CQHCI_CTL);
+ }
}
}
--
2.17.1
next prev parent reply other threads:[~2019-12-03 12:55 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-03 12:54 [PATCH v2 00/14] few fix for sdhci-esdhc-imx BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 01/14] mmc: sdhci: do not enable card detect interrupt for gpio cd type BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 02/14] mmc: sdhci-esdhc-imx: no fail when no pinctrl available BOUGH CHEN
2019-12-10 23:25 ` Linus Walleij
2019-12-03 12:54 ` [PATCH v2 03/14] mmc: sdhci-esdhci-imx: retune needed for Mega/Mix enabled SoCs BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 04/14] mmc: sdhci-esdhc-imx: restore the per_clk rate in PM_RUNTIME BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 05/14] doc: dt: fsl-imx-esdhc: add strobe-dll-delay-target binding BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 06/14] mmc: sdhci-esdhc-imx: add strobe-dll-delay-target support BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 07/14] mmc: sdhci-esdhc-imx: optimize the clock setting BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 08/14] mmc: sdhci-esdhc-imx: optimize the strobe dll setting BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 09/14] doc: dt: fsl-imx-esdhc: add auto-cmd23-broken binding BOUGH CHEN
2019-12-10 23:32 ` Linus Walleij
2019-12-10 23:39 ` Linus Walleij
2020-02-10 3:08 ` BOUGH CHEN
2020-02-10 13:30 ` Linus Walleij
2019-12-03 12:54 ` [PATCH v2 10/14] mmc: sdhci-esdhc-imx: handle 'sdhci,auto-cmd23-broken' from devicetree BOUGH CHEN
2019-12-10 23:38 ` Linus Walleij
2019-12-03 12:54 ` BOUGH CHEN [this message]
2019-12-03 12:54 ` [PATCH v2 12/14] mmc: sdhci-esdhc-imx: restore pin state when resume back BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 13/14] mmc: sdhci-esdhc-imx: clear DMA_SEL when disable DMA mode BOUGH CHEN
2019-12-03 12:54 ` [PATCH v2 14/14] mmc: queue: create dev->dma_parms before call dma_set_max_seg_size() BOUGH CHEN
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