linux-kernel - [PATCH 3/8] mmc: sdhci-of-aspeed: Patch HOST_CONTROL2 register missing after top reset

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Message-ID: <20250615035803.3752235-4-cool_lee@aspeedtech.com>
Date: Sun, 15 Jun 2025 11:57:58 +0800
From: Cool Lee <cool_lee@...eedtech.com>
To: <andrew@...econstruct.com.au>, <adrian.hunter@...el.com>,
	<ulf.hansson@...aro.org>, <joel@....id.au>, <p.zabel@...gutronix.de>,
	<linux-aspeed@...ts.ozlabs.org>, <openbmc@...ts.ozlabs.org>,
	<linux-mmc@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH 3/8] mmc: sdhci-of-aspeed: Patch HOST_CONTROL2 register missing after top reset

HOST_CONTROL2 register will be cleared after top reset,
it needs to be saved/resotred while reset.

Signed-off-by: Cool Lee <cool_lee@...eedtech.com>
---
 drivers/mmc/host/sdhci-of-aspeed.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c
index 5e5ae1894456..10160a706334 100644
--- a/drivers/mmc/host/sdhci-of-aspeed.c
+++ b/drivers/mmc/host/sdhci-of-aspeed.c
@@ -336,14 +336,15 @@ static void aspeed_sdhci_reset(struct sdhci_host *host, u8 mask)
 	struct sdhci_pltfm_host *pltfm_priv;
 	struct aspeed_sdhci *aspeed_sdhci;
 	struct aspeed_sdc *aspeed_sdc;
-	u32 save_array[7];
+	u32 save_array[8];
 	u32 reg_array[] = {SDHCI_DMA_ADDRESS,
 			SDHCI_BLOCK_SIZE,
 			SDHCI_ARGUMENT,
 			SDHCI_HOST_CONTROL,
 			SDHCI_CLOCK_CONTROL,
 			SDHCI_INT_ENABLE,
-			SDHCI_SIGNAL_ENABLE};
+			SDHCI_SIGNAL_ENABLE,
+			SDHCI_AUTO_CMD_STATUS};
 	int i;
 	u16 tran_mode;
 	u32 mmc8_mode;
-- 
2.34.1