3.14-stable review patch. If anyone has any objections, please let me know.
------------------ From: Hans de Goede <[email protected]> commit ffa216bb5eecfce0f01b0b2a95d5c320dde90005 upstream. brcmfmac has been broken on my cubietruck with a BCM43362: brcmfmac: brcmf_chip_recognition: found AXI chip: BCM43362, rev=1 brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Apr 22 2013 14:50:00 version 5.90.195.89.6 FWID 01-b30a427d since commit 53036261033: "brcmfmac: update core reset and disable routines". The problem is that since this commit brcmf_chip_ai_resetcore no longer sets BCMA_IOCTL itself before bringing the core out of reset, instead relying on brcmf_chip_ai_coredisable to do so. But brcmf_chip_ai_coredisable is a nop of the chip is already in reset. This patch modifies brcmf_chip_ai_coredisable to always set BCMA_IOCTL even if the core is already in reset. This fixes brcmfmac hanging in firmware loading on my board. Cc: [email protected] # v3.14 Signed-off-by: Hans de Goede <[email protected]> Acked-by: Arend van Spriel <[email protected]> Signed-off-by: John W. Linville <[email protected]> [[email protected]: rebase patch on linux-3.14.y branch] Signed-off-by: Arend van Spriel <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c @@ -300,10 +300,10 @@ brcmf_sdio_ai_coredisable(struct brcmf_s wrapbase = ci->c_inf[idx].wrapbase; - /* if core is already in reset, just return */ + /* if core is already in reset, skip reset */ regdata = brcmf_sdiod_regrl(sdiodev, wrapbase + BCMA_RESET_CTL, NULL); if ((regdata & BCMA_RESET_CTL_RESET) != 0) - return; + goto post_reset_config; /* configure reset */ brcmf_sdiod_regwl(sdiodev, wrapbase + BCMA_IOCTL, pre_resetbits | @@ -319,6 +319,7 @@ brcmf_sdio_ai_coredisable(struct brcmf_s SPINWAIT(brcmf_sdiod_regrl(sdiodev, wrapbase + BCMA_RESET_CTL, NULL) != BCMA_RESET_CTL_RESET, 300); +post_reset_config: /* post reset configure */ brcmf_sdiod_regwl(sdiodev, wrapbase + BCMA_IOCTL, pre_resetbits | BCMA_IOCTL_FGC | BCMA_IOCTL_CLK, NULL); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
