diff options
| author | Wright Feng <Wright.Feng@cypress.com> | 2019-04-25 07:05:46 +0000 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2019-04-25 19:59:04 +0300 |
| commit | 99d94ef367af67f630b38c93ff46c5819b7d06b6 (patch) | |
| tree | c50ab821321a5f12be77567ad97df29b9e52a997 /drivers/net/wireless/broadcom | |
| parent | d0e61a0f7cca51ce340a5a73595189972122ff25 (diff) | |
brcmfmac: send mailbox interrupt twice for specific hardware device
For PCIE wireless device with core revision less than 14, device may miss
PCIE to System Backplane Interrupt via PCIEtoSBMailbox. So add sending
mail box interrupt twice as a hardware workaround.
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/broadcom')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index fd3968fd158e..66ee92bb5178 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -698,7 +698,11 @@ brcmf_pcie_send_mb_data(struct brcmf_pciedev_info *devinfo, u32 htod_mb_data) brcmf_pcie_write_tcm32(devinfo, addr, htod_mb_data); pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1); - pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1); + + /* Send mailbox interrupt twice as a hardware workaround */ + core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_PCIE2); + if (core->rev <= 13) + pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1); return 0; } |