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0f7200c793
* The initial state of a series of patches for sunxi-5.17 tag orange-pi-5.17-20220323-1423 * DEBUG for sunxi-5.17 * Add Armbian patches to 5.17 * Fix duplicate nodes for sun50i-h5-orangepi-pc2 * Fix reg_ahci_5v to status okay for bananapro board * Remove an unused patch for an unsupported sun50i-h6-tanix-tx6 board
39 lines
1.0 KiB
Diff
39 lines
1.0 KiB
Diff
From dead30fc2eb911e838cf1ddffd13e9f3ba742ed3 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= <megi@xff.cz>
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Date: Fri, 16 Mar 2018 20:31:55 +0100
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Subject: [PATCH 014/456] mmc: add delay after power class selection
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This seems to fix issue with sporadic ETIMEOUT in eMMC cache
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initialization on second generation TBS A711 tablet.
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Signed-off-by: Ondrej Jirman <megi@xff.cz>
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---
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drivers/mmc/core/mmc.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
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index 8421519c2a98..a848e1a93419 100644
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--- a/drivers/mmc/core/mmc.c
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+++ b/drivers/mmc/core/mmc.c
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@@ -1806,6 +1806,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
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*/
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mmc_select_powerclass(card);
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+ msleep(20);
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+
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/*
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* Enable HPI feature (if supported)
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*/
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@@ -1824,6 +1826,8 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
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}
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}
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+ msleep(20);
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+
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/*
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* If cache size is higher than 0, this indicates the existence of cache
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* and it can be turned on. Note that some eMMCs from Micron has been
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--
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2.34.1
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