[src/trunk]: src/sys/arch/arm/sunxi Disable HS200 and DDR52 on A64 eMMC for n...

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

details:   https://anonhg.NetBSD.org/src/rev/1d2aa4605755
branches:  trunk
changeset: 319680:1d2aa4605755
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Thu Jun 07 00:39:27 2018 +0000

description:
Disable HS200 and DDR52 on A64 eMMC for now, and use len=0 for max length
transfers.

diffstat:

 sys/arch/arm/sunxi/sunxi_mmc.c |  16 ++++++++++------
 1 files changed, 10 insertions(+), 6 deletions(-)

diffs (54 lines):

diff -r 8a3f139cd2bb -r 1d2aa4605755 sys/arch/arm/sunxi/sunxi_mmc.c
--- a/sys/arch/arm/sunxi/sunxi_mmc.c    Wed Jun 06 23:50:29 2018 +0000
+++ b/sys/arch/arm/sunxi/sunxi_mmc.c    Thu Jun 07 00:39:27 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_mmc.c,v 1.24 2018/05/21 22:04:27 jmcneill Exp $ */
+/* $NetBSD: sunxi_mmc.c,v 1.25 2018/06/07 00:39:27 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 1.24 2018/05/21 22:04:27 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.25 2018/06/07 00:39:27 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -254,8 +254,7 @@
        .idma_xferlen = 0x2000,
        .dma_ftrglevel = 0x20070008,
        .delays = NULL,
-       .flags = SUNXI_MMC_FLAG_CALIB_REG |
-                SUNXI_MMC_FLAG_HS200,
+       .flags = SUNXI_MMC_FLAG_CALIB_REG,
 };
 
 static const struct sunxi_mmc_config sun50i_h6_mmc_config = {
@@ -554,10 +553,14 @@
                       SMC_CAPS_AUTO_STOP |
                       SMC_CAPS_SD_HIGHSPEED |
                       SMC_CAPS_MMC_HIGHSPEED |
-                      SMC_CAPS_MMC_DDR52 |
                       SMC_CAPS_POLLING;
+
+       if (sc->sc_config->delays || (flags & SUNXI_MMC_FLAG_NEW_TIMINGS))
+               saa.saa_caps |= SMC_CAPS_MMC_DDR52;
+
        if (flags & SUNXI_MMC_FLAG_HS200)
                saa.saa_caps |= SMC_CAPS_MMC_HS200;
+
        if (width == 4)
                saa.saa_caps |= SMC_CAPS_4BIT_MODE;
        if (width == 8)
@@ -967,7 +970,8 @@
                        if (desc == sc->sc_idma_ndesc)
                                break;
                        len = min(sc->sc_config->idma_xferlen, resid);
-                       dma[desc].dma_buf_size = htole32(len);
+                       dma[desc].dma_buf_size =
+                           htole32(len == sc->sc_config->idma_xferlen ? 0 : len);
                        dma[desc].dma_buf_addr = htole32(paddr + off);
                        dma[desc].dma_config = htole32(SUNXI_MMC_IDMA_CONFIG_CH |
                                               SUNXI_MMC_IDMA_CONFIG_OWN);