diff options
Diffstat (limited to 'package/kernel/mac80211/patches/346-v5.2-brcmfmac-send-mailbox-interrupt-twice-for-specific-h.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/346-v5.2-brcmfmac-send-mailbox-interrupt-twice-for-specific-h.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/346-v5.2-brcmfmac-send-mailbox-interrupt-twice-for-specific-h.patch b/package/kernel/mac80211/patches/346-v5.2-brcmfmac-send-mailbox-interrupt-twice-for-specific-h.patch new file mode 100644 index 0000000000..180c62079a --- /dev/null +++ b/package/kernel/mac80211/patches/346-v5.2-brcmfmac-send-mailbox-interrupt-twice-for-specific-h.patch @@ -0,0 +1,39 @@ +From 9ef77fbedad9ea8895cd5d7fb7aee16071f527dc Mon Sep 17 00:00:00 2001 +From: Wright Feng <Wright.Feng@cypress.com> +Date: Fri, 26 Apr 2019 03:12:32 +0000 +Subject: [PATCH] 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> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 7 ++++++- + 1 file changed, 6 insertions(+), 1 deletion(-) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +@@ -671,6 +671,7 @@ static int + brcmf_pcie_send_mb_data(struct brcmf_pciedev_info *devinfo, u32 htod_mb_data) + { + struct brcmf_pcie_shared_info *shared; ++ struct brcmf_core *core; + u32 addr; + u32 cur_htod_mb_data; + u32 i; +@@ -694,7 +695,11 @@ brcmf_pcie_send_mb_data(struct brcmf_pci + + 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; + } |