| Message ID | 20240226165321.91976-21-eajames@linux.ibm.com |
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From: Eddie James <eajames@linux.ibm.com>
To: linux-fsi@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org,
devicetree@vger.kernel.org, andi.shyti@kernel.org,
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Subject: [PATCH v2 20/31] fsi: aspeed: Disable relative addressing and IPOLL
for cfam reset
Date: Mon, 26 Feb 2024 10:53:10 -0600
Message-Id: <20240226165321.91976-21-eajames@linux.ibm.com>
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| Series |
fsi: Interrupt support
|
|
Commit Message
Eddie James
Feb. 26, 2024, 4:53 p.m. UTC
Need to disable these for the master reset after cfam reset.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
drivers/fsi/fsi-master-aspeed.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/fsi/fsi-master-aspeed.c b/drivers/fsi/fsi-master-aspeed.c index 1cb5bf6c05d2..92b47bc9917a 100644 --- a/drivers/fsi/fsi-master-aspeed.c +++ b/drivers/fsi/fsi-master-aspeed.c @@ -375,11 +375,18 @@ static ssize_t cfam_reset_store(struct device *dev, struct device_attribute *att trace_fsi_master_aspeed_cfam_reset(true); spin_lock_irqsave(&aspeed->lock, flags); + + opb_writel(aspeed, ctrl_base + FSI_MMODE, + cpu_to_be32(aspeed->master.mmode & ~(FSI_MMODE_EIP | FSI_MMODE_RELA))); + gpiod_set_value(aspeed->cfam_reset_gpio, 1); udelay(900); gpiod_set_value(aspeed->cfam_reset_gpio, 0); udelay(900); + opb_writel(aspeed, ctrl_base + FSI_MRESP0, cpu_to_be32(FSI_MRESP_RST_ALL_MASTER)); + opb_writel(aspeed, ctrl_base + FSI_MMODE, cpu_to_be32(aspeed->master.mmode)); + spin_unlock_irqrestore(&aspeed->lock, flags); trace_fsi_master_aspeed_cfam_reset(false);