[src/trunk]: src/sys/arch/arm/sunxi honour non-removable and broken-cd proper...

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/994ca733f5a4
branches:  trunk
changeset: 827869:994ca733f5a4
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Wed Nov 15 13:53:26 2017 +0000

description:
honour non-removable and broken-cd properties

diffstat:

 sys/arch/arm/sunxi/sunxi_mmc.c |  26 +++++++++++++++++++++-----
 1 files changed, 21 insertions(+), 5 deletions(-)

diffs (68 lines):

diff -r 93edfd3e3806 -r 994ca733f5a4 sys/arch/arm/sunxi/sunxi_mmc.c
--- a/sys/arch/arm/sunxi/sunxi_mmc.c    Wed Nov 15 10:42:41 2017 +0000
+++ b/sys/arch/arm/sunxi/sunxi_mmc.c    Wed Nov 15 13:53:26 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_mmc.c,v 1.16 2017/10/28 13:13:45 jmcneill Exp $ */
+/* $NetBSD: sunxi_mmc.c,v 1.17 2017/11/15 13:53:26 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2014-2017 Jared McNeill <jmcneill%invisible.ca@localhost>
@@ -29,7 +29,7 @@
 #include "opt_sunximmc.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.16 2017/10/28 13:13:45 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.17 2017/11/15 13:53:26 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -188,6 +188,9 @@
        struct fdtbus_regulator *sc_reg_vqmmc;
 
        struct fdtbus_mmc_pwrseq *sc_pwrseq;
+
+       bool sc_non_removable;
+       bool sc_broken_cd;
 };
 
 CFATTACH_DECL_NEW(sunxi_mmc, sizeof(struct sunxi_mmc_softc),
@@ -334,6 +337,9 @@
        sc->sc_gpio_cd_inverted = of_hasprop(phandle, "cd-inverted") ? 0 : 1;
        sc->sc_gpio_wp_inverted = of_hasprop(phandle, "wp-inverted") ? 0 : 1;
 
+       sc->sc_non_removable = of_hasprop(phandle, "non-removable");
+       sc->sc_broken_cd = of_hasprop(phandle, "broken-cd");
+
        if (sunxi_mmc_dmabounce_setup(sc) != 0 ||
            sunxi_mmc_idma_setup(sc) != 0) {
                aprint_error_dev(self, "failed to setup DMA\n");
@@ -638,9 +644,14 @@
 {
        struct sunxi_mmc_softc *sc = sch;
 
-       if (sc->sc_gpio_cd == NULL) {
-               return 1;       /* no card detect pin, assume present */
-       } else {
+       if (sc->sc_non_removable || sc->sc_broken_cd) {
+               /*
+                * Non-removable or broken card detect flag set in
+                * DT, assume always present
+                */
+               return 1;
+       } else if (sc->sc_gpio_cd != NULL) {
+               /* Use card detect GPIO */
                int v = 0, i;
                for (i = 0; i < 5; i++) {
                        v += (fdtbus_gpio_read(sc->sc_gpio_cd) ^
@@ -652,6 +663,11 @@
                else if (v == 0)
                        sc->sc_mmc_present = 1;
                return sc->sc_mmc_present;
+       } else {
+               /* Use CARD_PRESENT field of SD_STATUS register */
+               const uint32_t present = MMC_READ(sc, SUNXI_MMC_STATUS) &
+                   SUNXI_MMC_STATUS_CARD_PRESENT;
+               return present != 0;
        }
 }