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authorMasaharu Hayakawa <masaharu.hayakawa.ry@renesas.com>2018-06-18 15:57:51 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2018-07-16 12:21:45 +0300
commit26eb2607fa281d98eed28c8c3949f6786695bf7a (patch)
treeedcc02c3299ac2381f13f5308e936d8e09431e11 /drivers/mmc/host/renesas_sdhi_sys_dmac.c
parentdb924bba47c8031188545c84bf943f4058b659d0 (diff)
downloadlinux-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_sys_dmac.c')
-rw-r--r--drivers/mmc/host/renesas_sdhi_sys_dmac.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
index 4bb46c489d71..890f192dedbd 100644
--- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
@@ -78,6 +78,19 @@ 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),
+};
+
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,
@@ -104,8 +117,8 @@ static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = {
{ .compatible = "renesas,sdhi-r8a7792", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7793", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
- { .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-gen1-sdhi", .data = &of_rcar_gen1_compatible, },
{ .compatible = "renesas,rcar-gen2-sdhi", .data = &of_rcar_gen2_compatible, },
{ .compatible = "renesas,rcar-gen3-sdhi", .data = &of_rcar_gen3_compatible, },