[PATCH 21/33] fsi: aspeed: Disable relative addressing and IPOLL for cfam reset
From: Eddie James <eajames@linux.ibm.com>
Date: 2024-02-15 22:08:26
Also in:
linux-clk, linux-i2c, lkml
Subsystem:
fsi subsystem, the rest · Maintainers:
Eddie James, Linus Torvalds
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);
--
2.39.3