Commit 85dd3af6 authored by Victor Shih's avatar Victor Shih Committed by Ulf Hansson

mmc: sdhci-pci-gli: GL9755: Mask the replay timer timeout of AER

Due to a flaw in the hardware design, the GL9755 replay timer frequently
times out when ASPM is enabled. As a result, the warning messages will
often appear in the system log when the system accesses the GL9755
PCI config. Therefore, the replay timer timeout must be masked.

Fixes: 36ed2fd3 ("mmc: sdhci-pci-gli: A workaround to allow GL9755 to enter ASPM L1.2")
Signed-off-by: default avatarVictor Shih <victor.shih@genesyslogic.com.tw>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Acked-by: default avatarKai-Heng Feng <kai.heng.geng@canonical.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231107095741.8832-3-victorshihgli@gmail.comSigned-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 421b605e
......@@ -152,6 +152,9 @@
#define PCI_GLI_9755_PM_CTRL 0xFC
#define PCI_GLI_9755_PM_STATE GENMASK(1, 0)
#define PCI_GLI_9755_CORRERR_MASK 0x214
#define PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT BIT(12)
#define SDHCI_GLI_9767_GM_BURST_SIZE 0x510
#define SDHCI_GLI_9767_GM_BURST_SIZE_AXI_ALWAYS_SET BIT(8)
......@@ -770,6 +773,11 @@ static void gl9755_hw_setting(struct sdhci_pci_slot *slot)
value &= ~PCI_GLI_9755_PM_STATE;
pci_write_config_dword(pdev, PCI_GLI_9755_PM_CTRL, value);
/* mask the replay timer timeout of AER */
pci_read_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, &value);
value |= PCI_GLI_9755_CORRERR_MASK_REPLAY_TIMER_TIMEOUT;
pci_write_config_dword(pdev, PCI_GLI_9755_CORRERR_MASK, value);
gl9755_wt_off(pdev);
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment