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Commit 95b46aeb authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'mmc-v4.7-rc1-2' of git://git.linaro.org/people/ulf.hansson/mmc 

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Fix/restore behaviour when selecting bus width for (e)MMC

  MMC host:
   - sunxi: Fix eMMC HS-DDR modes on Allwinner A80"

* tag 'mmc-v4.7-rc1-2' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: sunxi: Re-enable eMMC HS-DDR modes on Allwinner A80
  mmc: sunxi: Fix DDR MMC timings for A80
  mmc: fix mmc mode selection for HS-DDR and higher
parents b2d5ad82 afefc102

drivers/mmc/core/mmc.c

+2 −2
Original line number Diff line number Diff line
@@ -1276,7 +1276,7 @@ static int mmc_select_hs200(struct mmc_card *card) 
	 * switch to HS200 mode if bus width is set successfully.

	 */

	err = mmc_select_bus_width(card);

	if (!err) {

	if (err >= 0) {

		val = EXT_CSD_TIMING_HS200 |

		      card->drive_strength << EXT_CSD_DRV_STR_SHIFT;

		err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
@@ -1583,7 +1583,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, 
	} else if (mmc_card_hs(card)) {

		/* Select the desired bus width optionally */

		err = mmc_select_bus_width(card);

		if (!err) {

		if (err >= 0) {

			err = mmc_select_hs_ddr(card);

			if (err)

				goto free_card;

drivers/mmc/host/sunxi-mmc.c

+2 −7
Original line number Diff line number Diff line
@@ -970,8 +970,8 @@ static const struct sunxi_mmc_clk_delay sun9i_mmc_clk_delays[] = { 
	[SDXC_CLK_400K]		= { .output = 180, .sample = 180 },

	[SDXC_CLK_25M]		= { .output = 180, .sample =  75 },

	[SDXC_CLK_50M]		= { .output = 150, .sample = 120 },

	[SDXC_CLK_50M_DDR]	= { .output =  90, .sample = 120 },

	[SDXC_CLK_50M_DDR_8BIT]	= { .output =  90, .sample = 120 },

	[SDXC_CLK_50M_DDR]	= { .output =  54, .sample =  36 },

	[SDXC_CLK_50M_DDR_8BIT]	= { .output =  72, .sample =  72 },

};



static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
@@ -1129,11 +1129,6 @@ static int sunxi_mmc_probe(struct platform_device *pdev) 
				  MMC_CAP_1_8V_DDR |

				  MMC_CAP_ERASE | MMC_CAP_SDIO_IRQ;



	/* TODO MMC DDR is not working on A80 */

	if (of_device_is_compatible(pdev->dev.of_node,

				    "allwinner,sun9i-a80-mmc"))

		mmc->caps &= ~MMC_CAP_1_8V_DDR;



	ret = mmc_of_parse(mmc);

	if (ret)

		goto error_free_dma;