From: Pablo Mazzini <pmazzini@gmail.com>
To: Andre Przywara <andre.przywara@arm.com>, u-boot@lists.u-boot-project.org
Cc: Tom Rini <trini@konsulko.com>,
linux-sunxi@lists.linux.dev, Peng Fan <peng.fan@nxp.com>,
Tanmay Kathpalia <tanmay.kathpalia@altera.com>,
Jaehoon Chung <jh80.chung@samsung.com>
Subject: [PATCH 6/7] mmc: sunxi: B288 mmc0/mmc1 run off PLL_PERIPH0 2x
Date: Fri, 16 Oct 2026 10:16:07 +0100 [thread overview]
Message-ID: <20261016091608.121842-7-pmazzini@gmail.com> (raw)
In-Reply-To: <20261016091608.121842-1-pmazzini@gmail.com>
Their mux input 1 is PLL_PERIPH0 2x, and unlike mmc2/mmc3 they do not
halve it.
Signed-off-by: Pablo Mazzini <pmazzini@gmail.com>
---
drivers/mmc/sunxi_mmc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index 84f4e4c2198..7329ca3e24e 100644
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -100,6 +100,13 @@ static int mmc_set_mod_clk(struct sunxi_mmc_priv *priv, unsigned int hz)
if (IS_ENABLED(CONFIG_MACH_SUN8I_R528))
pll_hz /= 2;
+ /*
+ * The B288's mux input 1 is PLL_PERIPH0 2x, and only the
+ * mmc2/mmc3 controllers halve it.
+ */
+ if (IS_ENABLED(CONFIG_MACH_SUN8I_B288) && priv->mmc_no < 2)
+ pll_hz *= 2;
+
/*
* The A523/T527 uses PERIPH0_400M as the MMC0/1 input clock,
* and PERIPH0_800M for MMC2. There is also the hidden divider
--
2.52.0
next prev parent reply other threads:[~2026-10-16 9:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-16 9:16 [PATCH 0/7] sunxi: add the Allwinner B288 and the PocketBook Verse Pablo Mazzini
2026-10-16 9:16 ` [PATCH 1/7] sunxi: add support for the Allwinner B288 Pablo Mazzini
2026-10-16 9:16 ` [PATCH 2/7] sunxi: dram: support " Pablo Mazzini
2026-10-16 9:16 ` [PATCH 3/7] dt-bindings: clock: add the Allwinner B288 CCU Pablo Mazzini
2026-10-16 9:16 ` [PATCH 4/7] clk: sunxi: add the Allwinner B288 gates and resets Pablo Mazzini
2026-10-16 9:16 ` [PATCH 5/7] pinctrl: sunxi: add the Allwinner B288 PIO Pablo Mazzini
2026-10-16 9:16 ` Pablo Mazzini [this message]
2026-10-16 9:16 ` [PATCH 7/7] sunxi: add the PocketBook Verse Pablo Mazzini
2026-10-16 17:28 ` [PATCH 0/7] sunxi: add the Allwinner B288 and " Andre Przywara
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