Module Name: src
Committed By: jmcneill
Date: Sun Sep 1 14:14:57 UTC 2019
Modified Files:
src/sys/arch/arm/sunxi: sunxi_mmc.c
Log Message:
Instead of delaying ack of sdio card interrupts, ack them immediately and
disable card interrupts until the sdio layer acks them later.
To generate a diff of this commit:
cvs rdiff -u -r1.34 -r1.35 src/sys/arch/arm/sunxi/sunxi_mmc.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/sunxi/sunxi_mmc.c
diff -u src/sys/arch/arm/sunxi/sunxi_mmc.c:1.34 src/sys/arch/arm/sunxi/sunxi_mmc.c:1.35
--- src/sys/arch/arm/sunxi/sunxi_mmc.c:1.34 Sun Sep 1 11:44:23 2019
+++ src/sys/arch/arm/sunxi/sunxi_mmc.c Sun Sep 1 14:14:57 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_mmc.c,v 1.34 2019/09/01 11:44:23 jmcneill Exp $ */
+/* $NetBSD: sunxi_mmc.c,v 1.35 2019/09/01 14:14:57 jmcneill Exp $ */
/*-
* Copyright (c) 2014-2017 Jared McNeill <jmcne...@invisible.ca>
@@ -29,7 +29,7 @@
#include "opt_sunximmc.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.34 2019/09/01 11:44:23 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.35 2019/09/01 14:14:57 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -176,6 +176,7 @@ struct sunxi_mmc_softc {
size_t sc_dmabounce_buflen;
uint32_t sc_intr_rint;
+ uint32_t sc_intr_card;
uint32_t sc_idma_idst;
struct clk *sc_clk_ahb;
@@ -607,7 +608,7 @@ sunxi_mmc_intr(void *priv)
return 0;
}
MMC_WRITE(sc, SUNXI_MMC_IDST, idst);
- MMC_WRITE(sc, SUNXI_MMC_RINT, rint & ~SUNXI_MMC_INT_SDIO_INT);
+ MMC_WRITE(sc, SUNXI_MMC_RINT, rint);
DPRINTF(sc->sc_dev, "mmc intr idst=%08X rint=%08X\n",
idst, rint);
@@ -626,6 +627,8 @@ sunxi_mmc_intr(void *priv)
}
if ((rint & SUNXI_MMC_INT_SDIO_INT) != 0) {
+ imask = MMC_READ(sc, SUNXI_MMC_IMASK);
+ MMC_WRITE(sc, SUNXI_MMC_IMASK, imask & ~SUNXI_MMC_INT_SDIO_INT);
sdmmc_card_intr(sc->sc_sdmmc_dev);
}
@@ -1218,7 +1221,8 @@ sunxi_mmc_exec_command(sdmmc_chipset_han
done:
cmd->c_flags |= SCF_ITSDONE;
- MMC_WRITE(sc, SUNXI_MMC_IMASK, oimask);
+ MMC_WRITE(sc, SUNXI_MMC_IMASK,
+ (oimask & ~SUNXI_MMC_INT_SDIO_INT) | sc->sc_intr_card);
MMC_WRITE(sc, SUNXI_MMC_RINT, 0xffff);
MMC_WRITE(sc, SUNXI_MMC_IDST, 0x337);
mutex_exit(&sc->sc_intr_lock);
@@ -1246,18 +1250,25 @@ sunxi_mmc_card_enable_intr(sdmmc_chipset
struct sunxi_mmc_softc *sc = sch;
uint32_t imask;
+ mutex_enter(&sc->sc_intr_lock);
imask = MMC_READ(sc, SUNXI_MMC_IMASK);
if (enable)
imask |= SUNXI_MMC_INT_SDIO_INT;
else
imask &= ~SUNXI_MMC_INT_SDIO_INT;
+ sc->sc_intr_card = imask & SUNXI_MMC_INT_SDIO_INT;
MMC_WRITE(sc, SUNXI_MMC_IMASK, imask);
+ mutex_exit(&sc->sc_intr_lock);
}
static void
sunxi_mmc_card_intr_ack(sdmmc_chipset_handle_t sch)
{
struct sunxi_mmc_softc *sc = sch;
+ uint32_t imask;
- MMC_WRITE(sc, SUNXI_MMC_RINT, SUNXI_MMC_INT_SDIO_INT);
+ mutex_enter(&sc->sc_intr_lock);
+ imask = MMC_READ(sc, SUNXI_MMC_IMASK);
+ MMC_WRITE(sc, SUNXI_MMC_IMASK, imask | sc->sc_intr_card);
+ mutex_exit(&sc->sc_intr_lock);
}
