From patchwork Sun Dec 26 15:36:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hector Martin X-Patchwork-Id: 12699452 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC6FCC4332F for ; Sun, 26 Dec 2021 15:38:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234036AbhLZPim (ORCPT ); Sun, 26 Dec 2021 10:38:42 -0500 Received: from marcansoft.com ([212.63.210.85]:56194 "EHLO mail.marcansoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234025AbhLZPiW (ORCPT ); Sun, 26 Dec 2021 10:38:22 -0500 Received: from [127.0.0.1] (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: hector@marcansoft.com) by mail.marcansoft.com (Postfix) with ESMTPSA id B1DCE44B4C; Sun, 26 Dec 2021 15:38:13 +0000 (UTC) From: Hector Martin To: Kalle Valo , "David S. Miller" , Jakub Kicinski , Rob Herring , "Rafael J. Wysocki" , Len Brown , Arend van Spriel , Franky Lin , Hante Meuleman , Chi-hsien Lin , Wright Feng , Chung-hsien Hsu Cc: Hector Martin , Sven Peter , Alyssa Rosenzweig , Mark Kettenis , =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= , Pieter-Paul Giesberts , Linus Walleij , Hans de Goede , "John W. Linville" , "Daniel (Deognyoun) Kim" , "brian m. carlson" , linux-wireless@vger.kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, SHA-cyfmac-dev-list@infineon.com Subject: [PATCH 13/34] brcmfmac: pcie: Support PCIe core revisions >= 64 Date: Mon, 27 Dec 2021 00:36:03 +0900 Message-Id: <20211226153624.162281-14-marcan@marcan.st> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211226153624.162281-1-marcan@marcan.st> References: <20211226153624.162281-1-marcan@marcan.st> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org These newer PCIe core revisions include new sets of registers that must be used instead of the legacy ones. Introduce a brcmf_pcie_reginfo to hold the specific register offsets and values to use for a given platform, and change all the register accesses to indirect through it. Signed-off-by: Hector Martin Reviewed-by: Linus Walleij --- .../broadcom/brcm80211/brcmfmac/pcie.c | 125 +++++++++++++++--- 1 file changed, 105 insertions(+), 20 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index ffb01872c6a3..520de2531e30 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -118,6 +118,12 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = { #define BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_0 0x140 #define BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_1 0x144 +#define BRCMF_PCIE_64_PCIE2REG_INTMASK 0xC14 +#define BRCMF_PCIE_64_PCIE2REG_MAILBOXINT 0xC30 +#define BRCMF_PCIE_64_PCIE2REG_MAILBOXMASK 0xC34 +#define BRCMF_PCIE_64_PCIE2REG_H2D_MAILBOX_0 0xA20 +#define BRCMF_PCIE_64_PCIE2REG_H2D_MAILBOX_1 0xA24 + #define BRCMF_PCIE2_INTA 0x01 #define BRCMF_PCIE2_INTB 0x02 @@ -137,6 +143,8 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = { #define BRCMF_PCIE_MB_INT_D2H3_DB0 0x400000 #define BRCMF_PCIE_MB_INT_D2H3_DB1 0x800000 +#define BRCMF_PCIE_MB_INT_FN0 (BRCMF_PCIE_MB_INT_FN0_0 | \ + BRCMF_PCIE_MB_INT_FN0_1) #define BRCMF_PCIE_MB_INT_D2H_DB (BRCMF_PCIE_MB_INT_D2H0_DB0 | \ BRCMF_PCIE_MB_INT_D2H0_DB1 | \ BRCMF_PCIE_MB_INT_D2H1_DB0 | \ @@ -146,6 +154,40 @@ static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = { BRCMF_PCIE_MB_INT_D2H3_DB0 | \ BRCMF_PCIE_MB_INT_D2H3_DB1) +#define BRCMF_PCIE_64_MB_INT_D2H0_DB0 0x1 +#define BRCMF_PCIE_64_MB_INT_D2H0_DB1 0x2 +#define BRCMF_PCIE_64_MB_INT_D2H1_DB0 0x4 +#define BRCMF_PCIE_64_MB_INT_D2H1_DB1 0x8 +#define BRCMF_PCIE_64_MB_INT_D2H2_DB0 0x10 +#define BRCMF_PCIE_64_MB_INT_D2H2_DB1 0x20 +#define BRCMF_PCIE_64_MB_INT_D2H3_DB0 0x40 +#define BRCMF_PCIE_64_MB_INT_D2H3_DB1 0x80 +#define BRCMF_PCIE_64_MB_INT_D2H4_DB0 0x100 +#define BRCMF_PCIE_64_MB_INT_D2H4_DB1 0x200 +#define BRCMF_PCIE_64_MB_INT_D2H5_DB0 0x400 +#define BRCMF_PCIE_64_MB_INT_D2H5_DB1 0x800 +#define BRCMF_PCIE_64_MB_INT_D2H6_DB0 0x1000 +#define BRCMF_PCIE_64_MB_INT_D2H6_DB1 0x2000 +#define BRCMF_PCIE_64_MB_INT_D2H7_DB0 0x4000 +#define BRCMF_PCIE_64_MB_INT_D2H7_DB1 0x8000 + +#define BRCMF_PCIE_64_MB_INT_D2H_DB (BRCMF_PCIE_64_MB_INT_D2H0_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H0_DB1 | \ + BRCMF_PCIE_64_MB_INT_D2H1_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H1_DB1 | \ + BRCMF_PCIE_64_MB_INT_D2H2_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H2_DB1 | \ + BRCMF_PCIE_64_MB_INT_D2H3_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H3_DB1 | \ + BRCMF_PCIE_64_MB_INT_D2H4_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H4_DB1 | \ + BRCMF_PCIE_64_MB_INT_D2H5_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H5_DB1 | \ + BRCMF_PCIE_64_MB_INT_D2H6_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H6_DB1 | \ + BRCMF_PCIE_64_MB_INT_D2H7_DB0 | \ + BRCMF_PCIE_64_MB_INT_D2H7_DB1) + #define BRCMF_PCIE_SHARED_VERSION_7 7 #define BRCMF_PCIE_MIN_SHARED_VERSION 5 #define BRCMF_PCIE_MAX_SHARED_VERSION BRCMF_PCIE_SHARED_VERSION_7 @@ -272,6 +314,7 @@ struct brcmf_pciedev_info { char nvram_name[BRCMF_FW_NAME_LEN]; char clm_name[BRCMF_FW_NAME_LEN]; const struct firmware *clm_fw; + const struct brcmf_pcie_reginfo *reginfo; void __iomem *regs; void __iomem *tcm; u32 ram_base; @@ -358,6 +401,36 @@ static const u32 brcmf_ring_itemsize[BRCMF_NROF_COMMON_MSGRINGS] = { BRCMF_D2H_MSGRING_RX_COMPLETE_ITEMSIZE }; +struct brcmf_pcie_reginfo { + u32 intmask; + u32 mailboxint; + u32 mailboxmask; + u32 h2d_mailbox_0; + u32 h2d_mailbox_1; + u32 int_d2h_db; + u32 int_fn0; +}; + +static const struct brcmf_pcie_reginfo brcmf_reginfo_default = { + .intmask = BRCMF_PCIE_PCIE2REG_INTMASK, + .mailboxint = BRCMF_PCIE_PCIE2REG_MAILBOXINT, + .mailboxmask = BRCMF_PCIE_PCIE2REG_MAILBOXMASK, + .h2d_mailbox_0 = BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_0, + .h2d_mailbox_1 = BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_1, + .int_d2h_db = BRCMF_PCIE_MB_INT_D2H_DB, + .int_fn0 = BRCMF_PCIE_MB_INT_FN0, +}; + +static const struct brcmf_pcie_reginfo brcmf_reginfo_64 = { + .intmask = BRCMF_PCIE_64_PCIE2REG_INTMASK, + .mailboxint = BRCMF_PCIE_64_PCIE2REG_MAILBOXINT, + .mailboxmask = BRCMF_PCIE_64_PCIE2REG_MAILBOXMASK, + .h2d_mailbox_0 = BRCMF_PCIE_64_PCIE2REG_H2D_MAILBOX_0, + .h2d_mailbox_1 = BRCMF_PCIE_64_PCIE2REG_H2D_MAILBOX_1, + .int_d2h_db = BRCMF_PCIE_64_MB_INT_D2H_DB, + .int_fn0 = 0, +}; + static void brcmf_pcie_setup(struct device *dev, int ret, struct brcmf_fw_request *fwreq); static struct brcmf_fw_request * @@ -840,30 +913,29 @@ static void brcmf_pcie_bus_console_read(struct brcmf_pciedev_info *devinfo, static void brcmf_pcie_intr_disable(struct brcmf_pciedev_info *devinfo) { - brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK, 0); + brcmf_pcie_write_reg32(devinfo, devinfo->reginfo->mailboxmask, 0); } static void brcmf_pcie_intr_enable(struct brcmf_pciedev_info *devinfo) { - brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK, - BRCMF_PCIE_MB_INT_D2H_DB | - BRCMF_PCIE_MB_INT_FN0_0 | - BRCMF_PCIE_MB_INT_FN0_1); + brcmf_pcie_write_reg32(devinfo, devinfo->reginfo->mailboxmask, + devinfo->reginfo->int_d2h_db | + devinfo->reginfo->int_fn0); } static void brcmf_pcie_hostready(struct brcmf_pciedev_info *devinfo) { if (devinfo->shared.flags & BRCMF_PCIE_SHARED_HOSTRDY_DB1) brcmf_pcie_write_reg32(devinfo, - BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_1, 1); + devinfo->reginfo->h2d_mailbox_1, 1); } static irqreturn_t brcmf_pcie_quick_check_isr(int irq, void *arg) { struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg; - if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT)) { + if (brcmf_pcie_read_reg32(devinfo, devinfo->reginfo->mailboxint)) { brcmf_pcie_intr_disable(devinfo); brcmf_dbg(PCIE, "Enter\n"); return IRQ_WAKE_THREAD; @@ -878,15 +950,14 @@ static irqreturn_t brcmf_pcie_isr_thread(int irq, void *arg) u32 status; devinfo->in_irq = true; - status = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT); + status = brcmf_pcie_read_reg32(devinfo, devinfo->reginfo->mailboxint); brcmf_dbg(PCIE, "Enter %x\n", status); if (status) { - brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, + brcmf_pcie_write_reg32(devinfo, devinfo->reginfo->mailboxint, status); - if (status & (BRCMF_PCIE_MB_INT_FN0_0 | - BRCMF_PCIE_MB_INT_FN0_1)) + if (status & devinfo->reginfo->int_fn0) brcmf_pcie_handle_mb_data(devinfo); - if (status & BRCMF_PCIE_MB_INT_D2H_DB) { + if (status & devinfo->reginfo->int_d2h_db) { if (devinfo->state == BRCMFMAC_PCIE_STATE_UP) brcmf_proto_msgbuf_rx_trigger( &devinfo->pdev->dev); @@ -945,8 +1016,8 @@ static void brcmf_pcie_release_irq(struct brcmf_pciedev_info *devinfo) if (devinfo->in_irq) brcmf_err(bus, "Still in IRQ (processing) !!!\n"); - status = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT); - brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, status); + status = brcmf_pcie_read_reg32(devinfo, devinfo->reginfo->mailboxint); + brcmf_pcie_write_reg32(devinfo, devinfo->reginfo->mailboxint, status); devinfo->irq_allocated = false; } @@ -998,7 +1069,7 @@ static int brcmf_pcie_ring_mb_ring_bell(void *ctx) brcmf_dbg(PCIE, "RING !\n"); /* Any arbitrary value will do, lets use 1 */ - brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_0, 1); + brcmf_pcie_write_reg32(devinfo, devinfo->reginfo->h2d_mailbox_0, 1); return 0; } @@ -1760,15 +1831,22 @@ static int brcmf_pcie_buscoreprep(void *ctx) static int brcmf_pcie_buscore_reset(void *ctx, struct brcmf_chip *chip) { struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx; - u32 val; + struct brcmf_core *core; + u32 val, reg; devinfo->ci = chip; brcmf_pcie_reset_device(devinfo); - val = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT); + /* reginfo is not ready yet */ + core = brcmf_chip_get_core(chip, BCMA_CORE_PCIE2); + if (core->rev >= 64) + reg = BRCMF_PCIE_64_PCIE2REG_MAILBOXINT; + else + reg = BRCMF_PCIE_PCIE2REG_MAILBOXINT; + + val = brcmf_pcie_read_reg32(devinfo, reg); if (val != 0xffffffff) - brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, - val); + brcmf_pcie_write_reg32(devinfo, reg, val); return 0; } @@ -2179,6 +2257,7 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) struct brcmf_pciedev_info *devinfo; struct brcmf_pciedev *pcie_bus_dev; struct brcmf_bus *bus; + struct brcmf_core *core; brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device); @@ -2197,6 +2276,12 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto fail; } + core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_PCIE2); + if (core->rev >= 64) + devinfo->reginfo = &brcmf_reginfo_64; + else + devinfo->reginfo = &brcmf_reginfo_default; + pcie_bus_dev = kzalloc(sizeof(*pcie_bus_dev), GFP_KERNEL); if (pcie_bus_dev == NULL) { ret = -ENOMEM; @@ -2365,7 +2450,7 @@ static int brcmf_pcie_pm_leave_D3(struct device *dev) brcmf_dbg(PCIE, "Enter, dev=%p, bus=%p\n", dev, bus); /* Check if device is still up and running, if so we are ready */ - if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_INTMASK) != 0) { + if (brcmf_pcie_read_reg32(devinfo, devinfo->reginfo->intmask) != 0) { brcmf_dbg(PCIE, "Try to wakeup device....\n"); if (brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D0_INFORM)) goto cleanup;