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path: root/drivers/mmc/sunxi_mmc.c
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* sunxi: mmc: Fix clk-delay settingsHans de Goede2015-09-29-3/+13
| | | | | | | | | | | | | | | | | In recent allwinner kernel sources the mmc/sdio clk-delay settings have been slightly tweaked, and for sun9i they are completely different then what we are using. This commit brings us in sync with what allwinner does, fixing problems accessing sdcards on some A33 devices (and likely others). For pre sun9i hardware this makes the following changes: -At 400Khz change the sample delay from 7 to 0 (first introduced in A31 sdk) -At 50 Mhz change the sample delay from 5 to 4 (first introduced in A23 sdk) -Above 50 MHz change the out delay from 2 to 1 (first introduced in A20 sdk) Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: mmc: set transfer timeout according to byte_cnt.Yousong Zhou2015-08-31-2/+4
| | | | | | | | | | | Originally a timeout value of 2 seconds was used regardless of the size of data to be transfered. This prevented slow devices from working correctly while there was no much gain for faster devices, e.g. it takes 3708ms for a transfer of uImage of size 1899008 bytes. Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Create helper function veryfing valid boot signature on MMCDaniel Kochmański2015-07-24-0/+17
| | | | | | | | | | | | | | | This patch extracts checking for valid SD card "eGON.BT0" signature from `board_mmc_init` into function `sunxi_mmc_has_egon_boot_signature`. Buffer for mmc sector is allocated and freed at runtime. `panic` is triggered on malloc failure. Signed-off-by: Daniel Kochmański <dkochmanski@turtle-solutions.eu> CC: Roy Spliet <r.spliet@ultimaker.com> Cc: Ian Campbell <ijc@hellion.org.uk> [hdegoede@redhat.com: Small bugfix to make it work for devs other then mmc0] Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: mmc: Enable pull-up on card-detect gpio pinHans de Goede2015-06-04-1/+3
| | | | | | | On some boards we need to enable the internal pull-up te reliable detect that no card is inserted. Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* Merge branch 'master' of git://git.denx.de/u-boot-mmcTom Rini2015-05-05-1/+1
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| * mmc: remove the MMC_MODE_HC flagRob Herring2015-05-05-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | High capacity support is not a host capability, but a device capability that is queried via the OCR. The flag in the operating conditions request argument can just be set unconditionally. This matches the Linux implementation. [panto] Hand merged and renumbering MMC_MODE_DDR_52MHz. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
* | sunxi: mmc: Fix card-detect gpio handling to work with the driver-modelHans de Goede2015-05-04-3/+4
| | | | | | | | | | | | | | | | | | The driver-model gpio functions may return another value then -1 as error, make the sunxi mmc code properly handle this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* | sunxi: Introduce a hidden SUNXI_GEN_SUNxI Kconfig boolHans de Goede2015-05-04-2/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | sun6i and newer (derived) SoCs such as the sun8i-a23, sun8i-a33 and sun9i have a various things in common, like having separate ahb reset control registers, the SID living inside the pmic, custom pmic busses, new style watchdog, etc. This commit introduces a new hidden SUNXI_GEN_SUN6I Kconfig bool which can be used to check for these features avoiding the need for an ever growing list of "#if defined CONFIG_MACH_SUN?I" conditionals as we add support for more "new style" sunxi SoCs. Note that this commit changes the behavior of the gmac and hdmi code for sun8i and the upcoming sun9i devices. This does not matter as sun8i does not have gmac nor hdmi, and sun9i has new hardware-blocks for these so the old code will not work there. Also this is intentional as if a sun8i / sun9i variant which does use the old hwblocks shows up then the GEN_SUN6I code paths will be the right ones to use. For completeness this also adds a SUNXI_GEN_SUN4I bool for A10/A13/A20. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: mmc: Always declare High Capacity capabilityHans de Goede2015-02-21-5/+1
| | | | | | | | | High Capacity (e)MMC cards work fine on sun4i / sun5i, and not having this capability set causes u-boot to not recognize the eMMC on an Utoo P66 A13 tablet, so always set it thereby fixing this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: mmc: Add 'sunxi_' prefix to the static functionsSiarhei Siamashka2015-02-02-7/+7
| | | | | | | | | | This results in a much more readable callgraph, because now they can't be confused with the function having exactly the same name in the generic mmc code. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: mmc: Add support for sun9i (A80)Hans de Goede2015-01-22-2/+14
| | | | | | | The clocks on the A80 are hooked up slightly different, add support for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: mmc: Use a realistic timeout when sending a mmc commandHans de Goede2015-01-22-1/+1
| | | | | | | | Wait 1 second for the sdcard to respond, rather then waiting for 0xfffff milliseconds. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* mmc: sunxi: Fix misuse of gpio_direction_input()Axel Lin2015-01-14-2/+5
| | | | | | | | | | | | It does not make sense to make gpio_direction_input() return the gpio input status. The return value of gpio_direction_input() is inconsistent if CONFIG_DM_GPIO is defined. And we don't need to call gpio_direction_input() int sunxi_mmc_getcd(). Just init the gpio once in mmc_resource_init() is enough. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: mmc: Properly setup mod-clk and clock sampling phasesHans de Goede2015-01-14-27/+68
| | | | | | | | | | | | | | | | | | | | | | | The sunxi mmc controller has both an internal clock divider, as well as the divider in the mod0-clk for the mmc controller. The internal divider cannot be used, as it conflicts with the setting of clock sampling phases which is done in the mod0-clk, so it must be set to 0 (divide by 1). For some reason while the kernel has had this correct from day one, the u-boot sunxi mmc code has been using a fixed mod0-clk and setting its internal divider depending on the desired speed. This is something which we've inherited from the original Allwinner u-boot sources, but while this has been fixed in Allwinner's own u-boot code at least for the A23 and later upstream u-boot was still doing this wrong. This commit fixes this, thereby also fixing mmc support not working reliable on the A23 (which seems more sensitive to this) and possible also fixes some other sunxi mmc issues. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* dm: sunxi: Request card detect gpioHans de Goede2014-11-05-10/+22
| | | | | | | This is necessary for the device-model enabled builds to work properly. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Simon Glass <sjg@chromium.org>
* sunxi: Use CONFIG_MACH_SUN?I from Kconfig instead of CONFIG_SUN?IIan Campbell2014-11-05-2/+2
| | | | | | | | | | | Mostly automatic with: sed -i -e 's/CONFIG_\(SUN[45678]I\)/CONFIG_MACH_\1/g' $(git grep -l CONFIG_SUN[45678]I) followed by removing the relevant #defines from include/configs/sun?i.h by hand. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* mmc: sunxi: Add support for sun8i (A23)Chen-Yu Tsai2014-10-24-1/+1
| | | | | | | | | | The Allwinner A23 SoC has reset controls like the A31 (sun6i). The FIFO address is also the same as sun6i. Re-use code added for sun6i. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: When we've both mmc0 and mmc2, detect from which one we're bootingHans de Goede2014-10-24-5/+2
| | | | | | | | | | | | | sunxi SOCs can boot from both mmc0 and mmc2, detect from which one we're booting, and make that one "mmc dev 0" so that a single u-boot binary can be used for both the onboard eMMC and for external sdcards. When we're booting from mmc2, we make it dev 0 because that is where the SPL will load the tertiary payload (the actual u-boot binary in our case) from, see: common/spl/spl_mmc.c, which has dev 0 hardcoded everywhere. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: Add mmc card-detect functionalityHans de Goede2014-10-24-0/+21
| | | | | Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* ARM: sunxi-mmc: Add mmc support for sun6i / A31Hans de Goede2014-10-24-4/+7
| | | | | | | | | | | The mmc hardware on sun6i has an extra reset control that needs to be de-asserted prior to usage. Also the FIFO address is different. Signed-off-by: Hans de Goede <hdegoede@redhat.com> [wens@csie.org: use setbits_le32 for reset control, drop obsolete changes, rewrite different FIFO address handling, add commit message] Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* mmc: sunxi: add SDHC support for sun6i/sun7i/sun8iWills Wang2014-10-24-0/+3
| | | | | | | Allwinner A20/A23/A31's SD/MMC host support SDHC High Capacity feature. Signed-off-by: Wills Wang <wills.wang.open@gmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Remove mmc DMA supportHans de Goede2014-07-06-134/+7
| | | | | | | | | | | | | | | | The DMA code in sunxi_mmc.c is broken. mmc_trans_data_by_dma() allocates the dma descriptors on the stack, and then exits while the dma transfer is in progress, so the dma engine is reading stack memory which at that point may be re-used. So far we've gotten away with this by luck, but recent u-boot changes have shifted the stack start address by 16 bytes, which combined with dma alignment now exposes this problem. Since we end up just busy waiting for the dma engine anyway, this commit fixes things by simply removing the dma code, resulting in smaller bug-free code. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: mmc supportIan Campbell2014-05-25-0/+503
On Mon, 2014-05-05 at 14:18 +0200, Stefan Roese wrote: > > + case 1: > > +#if CONFIG_MMC1_PG > Are you sure that this is correct and shouldn't be: > > +#ifdef CONFIG_MMC1_PG > > ? It's "correct" in so far as it works (the boards.cfg config stuff #defines things to 1), but I think you are right that it isn't the preferred style. But... > A quick scan through this patch series shows that this define > is not set at all. Perhaps its outdated? Or is it used to support > some other sunxi SoC? Not sure, perhaps it should be removed for > now. ...I had thought that it was to support some other board which wasn't being upstreamed right now, so eventually useful and harmless for now, but I've just checked and it isn't actually used by any of the boards in u-boot-sunxi.git. So rather than fix it to use #ifdef lets drop it. Rather than resend the entire series, here is v5.1 of this patch. > Other than this please add my: > > Reviewed-by: Stefan Roese <sr@denx.de> Thanks! 8<--------------------------------- >From 20704e35a41664de5f516ed0e02981ac06085102 Mon Sep 17 00:00:00 2001 From: Ian Campbell <ijc@hellion.org.uk> Date: Fri, 7 Mar 2014 04:29:39 +0000 Subject: [PATCH v5.1 7/8] sunxi: mmc support This adds support for the MMC controller on the Allwinner A20 (sun7i) processor. Signed-off-by: Henrik Nordstrom <henrik@henriknordstrom.net> Signed-off-by: Luke Leighton <lkcl@lkcl.net> Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Wills Wang <wills.wang.open@gmail.com> Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Reviewed-by: Marek Vasut <marex@denx.de> Reviewed-by: Stefan Roese <sr@denx.de> Cc: Tom Cubie <Mr.hipboi@gmail.com> Cc: Aaron Maoye <leafy.myeh@allwinnertech.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Reviewed-by: Tom Rini <trini@ti.com>
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