package/kernel/mac80211/patches/brcm/114-v5.6-0002-brcmfmac-set-F2-blocksize-and-watermark-for-4359.patch

   1 From 172f6854551d48d1c9530f84513b421db944e714 Mon Sep 17 00:00:00 2001
   2 From: Chung-Hsien Hsu <stanley.hsu@cypress.com>
   3 Date: Thu, 12 Dec 2019 00:52:46 +0100
   4 Subject: [PATCH 2/7] brcmfmac: set F2 blocksize and watermark for 4359
   5
   6 Set F2 blocksize to 256 bytes and watermark to 0x40 for 4359. Also
   7 enable and configure F1 MesBusyCtrl. It fixes DMA error while having
   8 UDP bi-directional traffic.
   9
  10 Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
  11 [slightly adapted for rebase on mainline linux]
  12 Signed-off-by: Soeren Moch <smoch@web.de>
  13 Reviewed-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
  14 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  15 ---
  16  .../wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c |  6 +++++-
  17  .../wireless/broadcom/brcm80211/brcmfmac/sdio.c   | 15 +++++++++++++++
  18  2 files changed, 20 insertions(+), 1 deletion(-)
  19
  20 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
  21 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c
  22 @@ -43,6 +43,7 @@
  23
  24  #define SDIO_FUNC1_BLOCKSIZE           64
  25  #define SDIO_FUNC2_BLOCKSIZE           512
  26 +#define SDIO_4359_FUNC2_BLOCKSIZE      256
  27  /* Maximum milliseconds to wait for F2 to come up */
  28  #define SDIO_WAIT_F2RDY        3000
  29
  30 @@ -903,6 +904,7 @@ static void brcmf_sdiod_host_fixup(struc
  31  static int brcmf_sdiod_probe(struct brcmf_sdio_dev *sdiodev)
  32  {
  33         int ret = 0;
  34 +       unsigned int f2_blksz = SDIO_FUNC2_BLOCKSIZE;
  35
  36         sdio_claim_host(sdiodev->func1);
  37
  38 @@ -912,7 +914,9 @@ static int brcmf_sdiod_probe(struct brcm
  39                 sdio_release_host(sdiodev->func1);
  40                 goto out;
  41         }
  42 -       ret = sdio_set_block_size(sdiodev->func2, SDIO_FUNC2_BLOCKSIZE);
  43 +       if (sdiodev->func2->device == SDIO_DEVICE_ID_BROADCOM_4359)
  44 +               f2_blksz = SDIO_4359_FUNC2_BLOCKSIZE;
  45 +       ret = sdio_set_block_size(sdiodev->func2, f2_blksz);
  46         if (ret) {
  47                 brcmf_err("Failed to set F2 blocksize\n");
  48                 sdio_release_host(sdiodev->func1);
  49 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  50 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
  51 @@ -42,6 +42,8 @@
  52  #define DEFAULT_F2_WATERMARK    0x8
  53  #define CY_4373_F2_WATERMARK    0x40
  54  #define CY_43012_F2_WATERMARK    0x60
  55 +#define CY_4359_F2_WATERMARK   0x40
  56 +#define CY_4359_F1_MESBUSYCTRL (CY_4359_F2_WATERMARK | SBSDIO_MESBUSYCTRL_ENAB)
  57
  58  #ifdef DEBUG
  59
  60 @@ -4206,6 +4208,19 @@ static void brcmf_sdio_firmware_callback
  61                         brcmf_sdiod_writeb(sdiod, SBSDIO_DEVICE_CTL, devctl,
  62                                            &err);
  63                         break;
  64 +               case SDIO_DEVICE_ID_BROADCOM_4359:
  65 +                       brcmf_dbg(INFO, "set F2 watermark to 0x%x*4 bytes\n",
  66 +                                 CY_4359_F2_WATERMARK);
  67 +                       brcmf_sdiod_writeb(sdiod, SBSDIO_WATERMARK,
  68 +                                          CY_4359_F2_WATERMARK, &err);
  69 +                       devctl = brcmf_sdiod_readb(sdiod, SBSDIO_DEVICE_CTL,
  70 +                                                  &err);
  71 +                       devctl |= SBSDIO_DEVCTL_F2WM_ENAB;
  72 +                       brcmf_sdiod_writeb(sdiod, SBSDIO_DEVICE_CTL, devctl,
  73 +                                          &err);
  74 +                       brcmf_sdiod_writeb(sdiod, SBSDIO_FUNC1_MESBUSYCTRL,
  75 +                                          CY_4359_F1_MESBUSYCTRL, &err);
  76 +                       break;
  77                 default:
  78                         brcmf_sdiod_writeb(sdiod, SBSDIO_WATERMARK,
  79                                            DEFAULT_F2_WATERMARK, &err);