diff options
| author | Franky Lin <frankyl@broadcom.com> | 2012-05-05 01:27:30 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-05-15 21:27:56 (GMT) |
| commit | 7d9cfc28269b10b19678d7cb57892afec85af8fb (patch) | |
| tree | 387ba266a05eabe5d47a7479a561618c6841f30e /drivers/net/wireless/brcm80211 | |
| parent | ce454e88289b54b0ccb8341007137f4df77123fd (diff) | |
| download | linux-7d9cfc28269b10b19678d7cb57892afec85af8fb.tar.xz | |
brcmfmac: decouple set_sbaddr_window from register write interface
brcmf_sdcard_set_sbaddr_window configures 3 registers on SDIO
function misc bank to change current silicon backplane programming
window. This patch makes it call brcmf_sdioh_request_byte directly
in order to prepare for the write register interface unification.
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/brcm80211')
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c index 7c9bc2b..f971fa8 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c @@ -205,19 +205,30 @@ brcmf_sdcard_cfg_write(struct brcmf_sdio_dev *sdiodev, uint fnc_num, u32 addr, int brcmf_sdcard_set_sbaddr_window(struct brcmf_sdio_dev *sdiodev, u32 address) { - int err = 0; - brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW, - (address >> 8) & SBSDIO_SBADDRLOW_MASK, &err); - if (!err) - brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_1, - SBSDIO_FUNC1_SBADDRMID, - (address >> 16) & SBSDIO_SBADDRMID_MASK, - &err); - if (!err) - brcmf_sdcard_cfg_write(sdiodev, SDIO_FUNC_1, - SBSDIO_FUNC1_SBADDRHIGH, - (address >> 24) & SBSDIO_SBADDRHIGH_MASK, - &err); + int err = 0, i; + u8 addr[3]; + s32 retry; + + addr[0] = (address >> 8) & SBSDIO_SBADDRLOW_MASK; + addr[1] = (address >> 16) & SBSDIO_SBADDRMID_MASK; + addr[2] = (address >> 24) & SBSDIO_SBADDRHIGH_MASK; + + for (i = 0; i < 3; i++) { + retry = 0; + do { + if (retry) + usleep_range(1000, 2000); + err = brcmf_sdioh_request_byte(sdiodev, SDIOH_WRITE, + SDIO_FUNC_1, SBSDIO_FUNC1_SBADDRLOW + i, + &addr[i]); + } while (err != 0 && retry++ < SDIOH_API_ACCESS_RETRY_LIMIT); + + if (err) { + brcmf_dbg(ERROR, "failed at addr:0x%0x\n", + SBSDIO_FUNC1_SBADDRLOW + i); + break; + } + } return err; } |