diff options
Diffstat (limited to 'package/kernel/mac80211/patches/865-brcmfmac-get-RAM-info-right-before-downloading-PCIe-.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/865-brcmfmac-get-RAM-info-right-before-downloading-PCIe-.patch | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/865-brcmfmac-get-RAM-info-right-before-downloading-PCIe-.patch b/package/kernel/mac80211/patches/865-brcmfmac-get-RAM-info-right-before-downloading-PCIe-.patch new file mode 100644 index 0000000000..020594dcbc --- /dev/null +++ b/package/kernel/mac80211/patches/865-brcmfmac-get-RAM-info-right-before-downloading-PCIe-.patch @@ -0,0 +1,70 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Subject: [PATCH] brcmfmac: get RAM info right before downloading PCIe firmware +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It's important as brcmf_chip_get_raminfo() also makes sure that memory +is properly setup. Without it the firmware could report invalid RAM +address like 0x04000001. + +During a normal brcmfmac lifetime brcmf_chip_get_raminfo() is called on +probe by the brcmf_chip_recognition(). This change allows implementing +further improvements like handling errors by resetting a device with +the brcmf_pcie_reset_device() and redownloading a firmware afterwards. + +Signed-off-by: Rafał Miłecki <rafal@milecki.pl> +--- + drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c | 6 ++++-- + drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h | 1 + + drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 6 ++++++ + 3 files changed, 11 insertions(+), 2 deletions(-) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c +@@ -700,8 +700,10 @@ static u32 brcmf_chip_tcm_rambase(struct + return 0; + } + +-static int brcmf_chip_get_raminfo(struct brcmf_chip_priv *ci) ++int brcmf_chip_get_raminfo(struct brcmf_chip *pub) + { ++ struct brcmf_chip_priv *ci = container_of(pub, struct brcmf_chip_priv, ++ pub); + struct brcmf_core_priv *mem_core; + struct brcmf_core *mem; + +@@ -981,7 +983,7 @@ static int brcmf_chip_recognition(struct + brcmf_chip_set_passive(&ci->pub); + } + +- return brcmf_chip_get_raminfo(ci); ++ return brcmf_chip_get_raminfo(&ci->pub); + } + + static void brcmf_chip_disable_arm(struct brcmf_chip_priv *chip, u16 id) +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h +@@ -80,6 +80,7 @@ struct brcmf_buscore_ops { + void (*activate)(void *ctx, struct brcmf_chip *chip, u32 rstvec); + }; + ++int brcmf_chip_get_raminfo(struct brcmf_chip *pub); + struct brcmf_chip *brcmf_chip_attach(void *ctx, + const struct brcmf_buscore_ops *ops); + void brcmf_chip_detach(struct brcmf_chip *chip); +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +@@ -1727,6 +1727,12 @@ static void brcmf_pcie_setup(struct devi + nvram_len = fwreq->items[BRCMF_PCIE_FW_NVRAM].nv_data.len; + kfree(fwreq); + ++ ret = brcmf_chip_get_raminfo(devinfo->ci); ++ if (ret) { ++ brcmf_err(bus, "Failed to get RAM info\n"); ++ goto fail; ++ } ++ + /* Some of the firmwares have the size of the memory of the device + * defined inside the firmware. This is because part of the memory in + * the device is shared and the devision is determined by FW. Parse |