From 1b8d2e0a9e4221b99eea375c079507ce8ef655f5 Mon Sep 17 00:00:00 2001 From: Wright Feng Date: Thu, 12 Dec 2019 00:52:45 +0100 Subject: [PATCH] brcmfmac: reset two D11 cores if chip has two D11 cores There are two D11 cores in RSDB chips like 4359. We have to reset two D11 cores simutaneously before firmware download, or the firmware may not be initialized correctly and cause "fw initialized failed" error. Signed-off-by: Wright Feng Signed-off-by: Soeren Moch Reviewed-by: Chi-Hsien Lin Signed-off-by: Kalle Valo --- .../broadcom/brcm80211/brcmfmac/chip.c | 50 +++++++++++++++++++ .../broadcom/brcm80211/brcmfmac/chip.h | 1 + .../broadcom/brcm80211/brcmfmac/pcie.c | 2 +- 3 files changed, 52 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c index a795d781b4c5..0b5fbe5d8270 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c @@ -433,11 +433,25 @@ static void brcmf_chip_ai_resetcore(struct brcmf_core_priv *core, u32 prereset, { struct brcmf_chip_priv *ci; int count; + struct brcmf_core *d11core2 = NULL; + struct brcmf_core_priv *d11priv2 = NULL; ci = core->chip; + /* special handle two D11 cores reset */ + if (core->pub.id == BCMA_CORE_80211) { + d11core2 = brcmf_chip_get_d11core(&ci->pub, 1); + if (d11core2) { + brcmf_dbg(INFO, "found two d11 cores, reset both\n"); + d11priv2 = container_of(d11core2, + struct brcmf_core_priv, pub); + } + } + /* must disable first to work for arbitrary current core state */ brcmf_chip_ai_coredisable(core, prereset, reset); + if (d11priv2) + brcmf_chip_ai_coredisable(d11priv2, prereset, reset); count = 0; while (ci->ops->read32(ci->ctx, core->wrapbase + BCMA_RESET_CTL) & @@ -449,9 +463,30 @@ static void brcmf_chip_ai_resetcore(struct brcmf_core_priv *core, u32 prereset, usleep_range(40, 60); } + if (d11priv2) { + count = 0; + while (ci->ops->read32(ci->ctx, + d11priv2->wrapbase + BCMA_RESET_CTL) & + BCMA_RESET_CTL_RESET) { + ci->ops->write32(ci->ctx, + d11priv2->wrapbase + BCMA_RESET_CTL, + 0); + count++; + if (count > 50) + break; + usleep_range(40, 60); + } + } + ci->ops->write32(ci->ctx, core->wrapbase + BCMA_IOCTL, postreset | BCMA_IOCTL_CLK); ci->ops->read32(ci->ctx, core->wrapbase + BCMA_IOCTL); + + if (d11priv2) { + ci->ops->write32(ci->ctx, d11priv2->wrapbase + BCMA_IOCTL, + postreset | BCMA_IOCTL_CLK); + ci->ops->read32(ci->ctx, d11priv2->wrapbase + BCMA_IOCTL); + } } char *brcmf_chip_name(u32 id, u32 rev, char *buf, uint len) @@ -1109,6 +1144,21 @@ void brcmf_chip_detach(struct brcmf_chip *pub) kfree(chip); } +struct brcmf_core *brcmf_chip_get_d11core(struct brcmf_chip *pub, u8 unit) +{ + struct brcmf_chip_priv *chip; + struct brcmf_core_priv *core; + + chip = container_of(pub, struct brcmf_chip_priv, pub); + list_for_each_entry(core, &chip->cores, list) { + if (core->pub.id == BCMA_CORE_80211) { + if (unit-- == 0) + return &core->pub; + } + } + return NULL; +} + struct brcmf_core *brcmf_chip_get_core(struct brcmf_chip *pub, u16 coreid) { struct brcmf_chip_priv *chip; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h index 7b00f6a59e89..8fa38658e727 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h @@ -74,6 +74,7 @@ struct brcmf_chip *brcmf_chip_attach(void *ctx, const struct brcmf_buscore_ops *ops); void brcmf_chip_detach(struct brcmf_chip *chip); struct brcmf_core *brcmf_chip_get_core(struct brcmf_chip *chip, u16 coreid); +struct brcmf_core *brcmf_chip_get_d11core(struct brcmf_chip *pub, u8 unit); struct brcmf_core *brcmf_chip_get_chipcommon(struct brcmf_chip *chip); struct brcmf_core *brcmf_chip_get_pmu(struct brcmf_chip *pub); bool brcmf_chip_iscoreup(struct brcmf_core *core); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index f64ce5074a55..7ac72804e285 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -78,7 +78,7 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = { BRCMF_FW_ENTRY(BRCM_CC_4371_CHIP_ID, 0xFFFFFFFF, 4371), }; -#define BRCMF_PCIE_FW_UP_TIMEOUT 2000 /* msec */ +#define BRCMF_PCIE_FW_UP_TIMEOUT 5000 /* msec */ #define BRCMF_PCIE_REG_MAP_SIZE (32 * 1024) -- 2.39.5