diff options
| author | Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com> | 2018-06-18 15:57:51 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2018-07-16 12:21:45 +0300 |
| commit | 26eb2607fa281d98eed28c8c3949f6786695bf7a (patch) | |
| tree | edcc02c3299ac2381f13f5308e936d8e09431e11 /drivers/mmc/host/renesas_sdhi_internal_dmac.c | |
| parent | db924bba47c8031188545c84bf943f4058b659d0 (diff) | |
| download | linux-26eb2607fa281d98eed28c8c3949f6786695bf7a.tar.xz | |
mmc: renesas_sdhi: add eMMC HS400 mode support
This patch adds processing for selecting HS400 mode.
Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/renesas_sdhi_internal_dmac.c')
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_internal_dmac.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c index d032bd63444d..35cc0de6be67 100644 --- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c +++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c @@ -82,6 +82,22 @@ static struct renesas_sdhi_scc rcar_gen3_scc_taps[] = { }, }; +static const struct renesas_sdhi_of_data of_rcar_r8a7795_compatible = { + .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL | + TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2 | + TMIO_MMC_HAVE_4TAP_HS400, + .capabilities = MMC_CAP_SD_HIGHSPEED | MMC_CAP_SDIO_IRQ | + MMC_CAP_CMD23, + .capabilities2 = MMC_CAP2_NO_WRITE_PROTECT, + .bus_shift = 2, + .scc_offset = 0x1000, + .taps = rcar_gen3_scc_taps, + .taps_num = ARRAY_SIZE(rcar_gen3_scc_taps), + /* DMAC can handle 0xffffffff blk count but only 1 segment */ + .max_blk_count = 0xffffffff, + .max_segs = 1, +}; + static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = { .tmio_flags = TMIO_MMC_HAS_IDLE_WAIT | TMIO_MMC_CLK_ACTUAL | TMIO_MMC_HAVE_CBSY | TMIO_MMC_MIN_RCAR2, @@ -98,8 +114,8 @@ static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = { }; static const struct of_device_id renesas_sdhi_internal_dmac_of_match[] = { - { .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, }, - { .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, }, + { .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_r8a7795_compatible, }, + { .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_r8a7795_compatible, }, { .compatible = "renesas,rcar-gen3-sdhi", .data = &of_rcar_gen3_compatible, }, {}, }; |