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https://github.com/openwrt/openwrt.git
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84 lines
2.7 KiB
Diff
84 lines
2.7 KiB
Diff
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From b741d0b83cb8a55f1767b53f006fbcb2c3cfeb32 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Wed, 12 Oct 2022 14:07:32 +0100
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Subject: [PATCH 0533/1085] mmc: sdhci-of-dwcmshc: rp1 sdio changes
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/mmc/host/sdhci-of-dwcmshc.c | 29 ++++++++++++++++++++++++++---
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1 file changed, 26 insertions(+), 3 deletions(-)
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--- a/drivers/mmc/host/sdhci-of-dwcmshc.c
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+++ b/drivers/mmc/host/sdhci-of-dwcmshc.c
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@@ -90,6 +90,7 @@ struct rk35xx_priv {
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struct dwcmshc_priv {
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struct clk *bus_clk;
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+ struct clk *sdio_clk;
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int vendor_specific_area1; /* P_VENDOR_SPECIFIC_AREA reg */
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void *priv; /* pointer to SoC private stuff */
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};
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@@ -117,6 +118,17 @@ static void dwcmshc_adma_write_desc(stru
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sdhci_adma_write_desc(host, desc, addr, len, cmd);
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}
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+static void dwcmshc_set_clock(struct sdhci_host *host, unsigned int clock)
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+{
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+ struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
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+ struct dwcmshc_priv *priv = sdhci_pltfm_priv(pltfm_host);
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+
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+ if (priv->sdio_clk)
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+ clk_set_rate(priv->sdio_clk, clock);
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+
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+ sdhci_set_clock(host, clock);
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+}
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+
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static unsigned int dwcmshc_get_max_clock(struct sdhci_host *host)
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{
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struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
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@@ -339,7 +351,7 @@ static void rk35xx_sdhci_reset(struct sd
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}
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static const struct sdhci_ops sdhci_dwcmshc_ops = {
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- .set_clock = sdhci_set_clock,
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+ .set_clock = dwcmshc_set_clock,
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.set_bus_width = sdhci_set_bus_width,
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.set_uhs_signaling = dwcmshc_set_uhs_signaling,
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.get_max_clock = dwcmshc_get_max_clock,
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@@ -359,8 +371,10 @@ static const struct sdhci_ops sdhci_dwcm
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static const struct sdhci_pltfm_data sdhci_dwcmshc_pdata = {
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.ops = &sdhci_dwcmshc_ops,
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- .quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
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- .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
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+ .quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
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+ SDHCI_QUIRK_BROKEN_CARD_DETECTION,
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+ .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
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+ SDHCI_QUIRK2_BROKEN_HS200,
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};
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#ifdef CONFIG_ACPI
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@@ -513,6 +527,14 @@ static int dwcmshc_probe(struct platform
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priv->bus_clk = devm_clk_get(dev, "bus");
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if (!IS_ERR(priv->bus_clk))
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clk_prepare_enable(priv->bus_clk);
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+
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+ pltfm_host->timeout_clk = devm_clk_get(dev, "timeout");
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+ if (!IS_ERR(pltfm_host->timeout_clk))
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+ err = clk_prepare_enable(pltfm_host->timeout_clk);
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+ if (err)
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+ goto free_pltfm;
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+
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+ priv->sdio_clk = devm_clk_get_optional(&pdev->dev, "sdio");
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}
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pltfm_host->timeout_clk = devm_clk_get(&pdev->dev, "timeout");
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@@ -530,6 +552,7 @@ static int dwcmshc_probe(struct platform
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goto err_clk;
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sdhci_get_of_property(pdev);
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+ sdhci_enable_v4_mode(host);
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priv->vendor_specific_area1 =
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sdhci_readl(host, DWCMSHC_P_VENDOR_AREA1) & DWCMSHC_AREA1_MASK;
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