| Message ID | 20230126200607.73185-7-marek.vasut+renesas@mailbox.org |
|---|---|
| State | Accepted |
| Commit | 3c78ce868047bdd3028e5bc741dae13e17ad4a1e |
| Delegated to: | Marek Vasut |
| Headers | show |
| Series | [01/13] mmc: renesas-sdhi: R-Car M3 r1.3 also uses 4 tuning taps | expand |
On 1/27/23 05:06, Marek Vasut wrote: > From: Hai Pham <hai.pham.ud@renesas.com> > > V3M handles SDnH differently than other Gen3 SoCs, so let's add a > separate entry for that. This will allow better SDnH handling in the > future. > > Based on Linux commit 627151b4966f ("mmc: renesas_sdhi: Flag > non-standard SDnH handling for V3M") by Wolfram Sang > > Signed-off-by: Hai Pham <hai.pham.ud@renesas.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Best Regards, Jaehoon Chung > --- > drivers/mmc/renesas-sdhi.c | 6 ++++++ > drivers/mmc/tmio-common.h | 1 + > 2 files changed, 7 insertions(+) > > diff --git a/drivers/mmc/renesas-sdhi.c b/drivers/mmc/renesas-sdhi.c > index f85ced26ed8..f30d7847bf2 100644 > --- a/drivers/mmc/renesas-sdhi.c > +++ b/drivers/mmc/renesas-sdhi.c > @@ -930,6 +930,12 @@ static void renesas_sdhi_filter_caps(struct udevice *dev) > priv->read_poll_flag = TMIO_SD_DMA_INFO1_END_RD; > else > priv->read_poll_flag = TMIO_SD_DMA_INFO1_END_RD2; > + > + /* V3M handles SD0H differently than other Gen3 SoCs */ > + if (rmobile_get_cpu_type() == RMOBILE_CPU_TYPE_R8A77970) > + priv->needs_clkh_fallback = true; > + else > + priv->needs_clkh_fallback = false; > } > > static int renesas_sdhi_probe(struct udevice *dev) > diff --git a/drivers/mmc/tmio-common.h b/drivers/mmc/tmio-common.h > index 59d5a0e22e9..e517ed978bf 100644 > --- a/drivers/mmc/tmio-common.h > +++ b/drivers/mmc/tmio-common.h > @@ -151,6 +151,7 @@ struct tmio_sd_priv { > u8 hs400_bad_tap; > const u8 *adjust_hs400_calib_table; > u32 quirks; > + bool needs_clkh_fallback; > #endif > ulong (*clk_get_rate)(struct tmio_sd_priv *); > };
diff --git a/drivers/mmc/renesas-sdhi.c b/drivers/mmc/renesas-sdhi.c index f85ced26ed8..f30d7847bf2 100644 --- a/drivers/mmc/renesas-sdhi.c +++ b/drivers/mmc/renesas-sdhi.c @@ -930,6 +930,12 @@ static void renesas_sdhi_filter_caps(struct udevice *dev) priv->read_poll_flag = TMIO_SD_DMA_INFO1_END_RD; else priv->read_poll_flag = TMIO_SD_DMA_INFO1_END_RD2; + + /* V3M handles SD0H differently than other Gen3 SoCs */ + if (rmobile_get_cpu_type() == RMOBILE_CPU_TYPE_R8A77970) + priv->needs_clkh_fallback = true; + else + priv->needs_clkh_fallback = false; } static int renesas_sdhi_probe(struct udevice *dev) diff --git a/drivers/mmc/tmio-common.h b/drivers/mmc/tmio-common.h index 59d5a0e22e9..e517ed978bf 100644 --- a/drivers/mmc/tmio-common.h +++ b/drivers/mmc/tmio-common.h @@ -151,6 +151,7 @@ struct tmio_sd_priv { u8 hs400_bad_tap; const u8 *adjust_hs400_calib_table; u32 quirks; + bool needs_clkh_fallback; #endif ulong (*clk_get_rate)(struct tmio_sd_priv *); };