package/kernel/mac80211/patches/brcm/414-v5.6-0001-brcmfmac-reset-two-D11-cores-if-chip-has-two-D11-cor.patch

   1 From 1b8d2e0a9e4221b99eea375c079507ce8ef655f5 Mon Sep 17 00:00:00 2001
   2 From: Wright Feng <wright.feng@cypress.com>
   3 Date: Thu, 12 Dec 2019 00:52:45 +0100
   4 Subject: [PATCH 1/7] brcmfmac: reset two D11 cores if chip has two D11 cores
   5
   6 There are two D11 cores in RSDB chips like 4359. We have to reset two
   7 D11 cores simutaneously before firmware download, or the firmware may
   8 not be initialized correctly and cause "fw initialized failed" error.
   9
  10 Signed-off-by: Wright Feng <wright.feng@cypress.com>
  11 Signed-off-by: Soeren Moch <smoch@web.de>
  12 Reviewed-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
  13 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  14 ---
  15  .../broadcom/brcm80211/brcmfmac/chip.c        | 50 +++++++++++++++++++
  16  .../broadcom/brcm80211/brcmfmac/chip.h        |  1 +
  17  .../broadcom/brcm80211/brcmfmac/pcie.c        |  2 +-
  18  3 files changed, 52 insertions(+), 1 deletion(-)
  19
  20 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
  21 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.c
  22 @@ -433,11 +433,25 @@ static void brcmf_chip_ai_resetcore(stru
  23  {
  24         struct brcmf_chip_priv *ci;
  25         int count;
  26 +       struct brcmf_core *d11core2 = NULL;
  27 +       struct brcmf_core_priv *d11priv2 = NULL;
  28
  29         ci = core->chip;
  30
  31 +       /* special handle two D11 cores reset */
  32 +       if (core->pub.id == BCMA_CORE_80211) {
  33 +               d11core2 = brcmf_chip_get_d11core(&ci->pub, 1);
  34 +               if (d11core2) {
  35 +                       brcmf_dbg(INFO, "found two d11 cores, reset both\n");
  36 +                       d11priv2 = container_of(d11core2,
  37 +                                               struct brcmf_core_priv, pub);
  38 +               }
  39 +       }
  40 +
  41         /* must disable first to work for arbitrary current core state */
  42         brcmf_chip_ai_coredisable(core, prereset, reset);
  43 +       if (d11priv2)
  44 +               brcmf_chip_ai_coredisable(d11priv2, prereset, reset);
  45
  46         count = 0;
  47         while (ci->ops->read32(ci->ctx, core->wrapbase + BCMA_RESET_CTL) &
  48 @@ -449,9 +463,30 @@ static void brcmf_chip_ai_resetcore(stru
  49                 usleep_range(40, 60);
  50         }
  51
  52 +       if (d11priv2) {
  53 +               count = 0;
  54 +               while (ci->ops->read32(ci->ctx,
  55 +                                      d11priv2->wrapbase + BCMA_RESET_CTL) &
  56 +                                      BCMA_RESET_CTL_RESET) {
  57 +                       ci->ops->write32(ci->ctx,
  58 +                                        d11priv2->wrapbase + BCMA_RESET_CTL,
  59 +                                        0);
  60 +                       count++;
  61 +                       if (count > 50)
  62 +                               break;
  63 +                       usleep_range(40, 60);
  64 +               }
  65 +       }
  66 +
  67         ci->ops->write32(ci->ctx, core->wrapbase + BCMA_IOCTL,
  68                          postreset | BCMA_IOCTL_CLK);
  69         ci->ops->read32(ci->ctx, core->wrapbase + BCMA_IOCTL);
  70 +
  71 +       if (d11priv2) {
  72 +               ci->ops->write32(ci->ctx, d11priv2->wrapbase + BCMA_IOCTL,
  73 +                                postreset | BCMA_IOCTL_CLK);
  74 +               ci->ops->read32(ci->ctx, d11priv2->wrapbase + BCMA_IOCTL);
  75 +       }
  76  }
  77
  78  char *brcmf_chip_name(u32 id, u32 rev, char *buf, uint len)
  79 @@ -1109,6 +1144,21 @@ void brcmf_chip_detach(struct brcmf_chip
  80         kfree(chip);
  81  }
  82
  83 +struct brcmf_core *brcmf_chip_get_d11core(struct brcmf_chip *pub, u8 unit)
  84 +{
  85 +       struct brcmf_chip_priv *chip;
  86 +       struct brcmf_core_priv *core;
  87 +
  88 +       chip = container_of(pub, struct brcmf_chip_priv, pub);
  89 +       list_for_each_entry(core, &chip->cores, list) {
  90 +               if (core->pub.id == BCMA_CORE_80211) {
  91 +                       if (unit-- == 0)
  92 +                               return &core->pub;
  93 +               }
  94 +       }
  95 +       return NULL;
  96 +}
  97 +
  98  struct brcmf_core *brcmf_chip_get_core(struct brcmf_chip *pub, u16 coreid)
  99  {
 100         struct brcmf_chip_priv *chip;
 101 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h
 102 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/chip.h
 103 @@ -74,6 +74,7 @@ struct brcmf_chip *brcmf_chip_attach(voi
 104                                      const struct brcmf_buscore_ops *ops);
 105  void brcmf_chip_detach(struct brcmf_chip *chip);
 106  struct brcmf_core *brcmf_chip_get_core(struct brcmf_chip *chip, u16 coreid);
 107 +struct brcmf_core *brcmf_chip_get_d11core(struct brcmf_chip *pub, u8 unit);
 108  struct brcmf_core *brcmf_chip_get_chipcommon(struct brcmf_chip *chip);
 109  struct brcmf_core *brcmf_chip_get_pmu(struct brcmf_chip *pub);
 110  bool brcmf_chip_iscoreup(struct brcmf_core *core);
 111 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
 112 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
 113 @@ -78,7 +78,7 @@ static const struct brcmf_firmware_mappi
 114         BRCMF_FW_ENTRY(BRCM_CC_4371_CHIP_ID, 0xFFFFFFFF, 4371),
 115  };
 116
 117 -#define BRCMF_PCIE_FW_UP_TIMEOUT               2000 /* msec */
 118 +#define BRCMF_PCIE_FW_UP_TIMEOUT               5000 /* msec */
 119
 120  #define BRCMF_PCIE_REG_MAP_SIZE                        (32 * 1024)
 121