From: haibo.chen@nxp.com
To: adrian.hunter@intel.com, ulf.hansson@linaro.org,
linux-mmc@vger.kernel.org
Cc: linux-imx@nxp.com, haibo.chen@nxp.com, linus.walleij@linaro.org
Subject: [PATCH v3 11/14] mmc: sdhci-esdhc-imx: clear pending interrupt and halt cqhci
Date: Mon, 10 Feb 2020 16:49:54 +0800 [thread overview]
Message-ID: <1581324597-31031-6-git-send-email-haibo.chen@nxp.com> (raw)
In-Reply-To: <1581324597-31031-1-git-send-email-haibo.chen@nxp.com>
From: Haibo Chen <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 100c081cfcae..106097cbd0d4 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1233,6 +1233,7 @@ 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)) {
@@ -1309,6 +1310,21 @@ 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:[~2020-02-10 8:55 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-10 8:49 [PATCH v3 06/14] mmc: sdhci-esdhc-imx: add strobe-dll-delay-target support haibo.chen
2020-02-10 8:49 ` [PATCH v3 07/14] mmc: sdhci-esdhc-imx: optimize the clock setting haibo.chen
2020-02-10 8:49 ` [PATCH v3 08/14] mmc: sdhci-esdhc-imx: optimize the strobe dll setting haibo.chen
2020-02-10 8:49 ` [PATCH v3 09/14] mmc: sdhci-esdhc-imx: add flag ESDHC_FLAG_BROKEN_AUTO_CMD23 haibo.chen
2020-02-18 7:42 ` Adrian Hunter
2020-02-10 8:49 ` [PATCH v3 10/14] mmc: sdhci-esdhc-imx: Add an new esdhc_soc_data for i.MX8MM haibo.chen
2020-02-18 7:42 ` Adrian Hunter
2020-02-10 8:49 ` haibo.chen [this message]
2020-02-18 7:47 ` [PATCH v3 11/14] mmc: sdhci-esdhc-imx: clear pending interrupt and halt cqhci Adrian Hunter
2020-02-10 8:49 ` [PATCH v3 12/14] mmc: sdhci-esdhc-imx: restore pin state when resume back haibo.chen
2020-02-18 7:58 ` Adrian Hunter
2020-02-19 7:16 ` BOUGH CHEN
2020-02-19 7:29 ` Hunter, Adrian
2020-02-19 7:37 ` BOUGH CHEN
2020-02-10 8:49 ` [PATCH v3 13/14] mmc: sdhci-esdhc-imx: clear DMA_SEL when disable DMA mode haibo.chen
2020-02-18 8:00 ` Adrian Hunter
2020-02-10 8:49 ` [PATCH v3 14/14] mmc: queue: create dev->dma_parms before call dma_set_max_seg_size() haibo.chen
2020-02-18 8:15 ` Adrian Hunter
2020-02-19 7:20 ` BOUGH CHEN
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