From patchwork Wed Jul 24 06:04:30 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Chuang X-Patchwork-Id: 11056033 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CFD1E912 for ; Wed, 24 Jul 2019 06:05:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BFAE02875F for ; Wed, 24 Jul 2019 06:05:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B434D2876C; Wed, 24 Jul 2019 06:05:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3BA6E2875F for ; Wed, 24 Jul 2019 06:05:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726333AbfGXGFC (ORCPT ); Wed, 24 Jul 2019 02:05:02 -0400 Received: from rtits2.realtek.com ([211.75.126.72]:49309 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725870AbfGXGFC (ORCPT ); Wed, 24 Jul 2019 02:05:02 -0400 Authenticated-By: X-SpamFilter-By: BOX Solutions SpamTrap 5.62 with qID x6O64qCN011113, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (RTITCASV01.realtek.com.tw[172.21.6.18]) by rtits2.realtek.com.tw (8.15.2/2.57/5.78) with ESMTPS id x6O64qCN011113 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 24 Jul 2019 14:04:52 +0800 Received: from localhost.localdomain (172.21.68.126) by RTITCASV01.realtek.com.tw (172.21.6.18) with Microsoft SMTP Server id 14.3.439.0; Wed, 24 Jul 2019 14:04:51 +0800 From: To: CC: , , Subject: [PATCH 2/5] rtw88: check efuse for BT FT S1 Date: Wed, 24 Jul 2019 14:04:30 +0800 Message-ID: <1563948273-17910-3-git-send-email-yhchuang@realtek.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1563948273-17910-1-git-send-email-yhchuang@realtek.com> References: <1563948273-17910-1-git-send-email-yhchuang@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.68.126] Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Yan-Hsuan Chuang Some modules might not have full programed efuse. Driver should check the BT FT S1 type to know that if BT has been programed. If BT is not programed, throw a warning to notify that this module is not capable of working with WiFi + BT concurrently. Signed-off-by: Yan-Hsuan Chuang --- drivers/net/wireless/realtek/rtw88/efuse.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/net/wireless/realtek/rtw88/efuse.c b/drivers/net/wireless/realtek/rtw88/efuse.c index 66e56f3..82aa26a 100644 --- a/drivers/net/wireless/realtek/rtw88/efuse.c +++ b/drivers/net/wireless/realtek/rtw88/efuse.c @@ -8,6 +8,11 @@ #include "debug.h" #define RTW_EFUSE_BANK_WIFI 0x0 +#define RTW_EFUSE_BANK_BT 0x1 + +#define EFUSE_BT_S1_ADDR 0x4a +#define EFUSE_BT_S1_TYPE1 0xff +#define EFUSE_BT_S1_TYPE2 0x00 static void switch_efuse_bank(struct rtw_dev *rtwdev, u8 efuse_bank) { @@ -89,6 +94,7 @@ static int rtw_dump_physical_efuse_map(struct rtw_dev *rtwdev, u8 *map) u32 efuse_ctl; u32 addr; u32 cnt; + u8 ft_ver; switch_efuse_bank(rtwdev, RTW_EFUSE_BANK_WIFI); @@ -113,6 +119,24 @@ static int rtw_dump_physical_efuse_map(struct rtw_dev *rtwdev, u8 *map) *(map + addr) = (u8)(efuse_ctl & BIT_MASK_EF_DATA); } + /* verify BT FT S1 efuse type */ + switch_efuse_bank(rtwdev, RTW_EFUSE_BANK_BT); + + efuse_ctl = rtw_read32(rtwdev, REG_EFUSE_CTRL); + efuse_ctl &= ~(BIT_MASK_EF_DATA | BITS_EF_ADDR); + efuse_ctl |= (EFUSE_BT_S1_ADDR & BIT_MASK_EF_ADDR) << BIT_SHIFT_EF_ADDR; + rtw_write32(rtwdev, REG_EFUSE_CTRL, efuse_ctl & (~BIT_EF_FLAG)); + + if (!check_hw_ready(rtwdev, REG_EFUSE_CTRL, BIT_EF_FLAG, 0x1)) { + rtw_err(rtwdev, "failed to read BT efuse\n"); + return -EBUSY; + } + + efuse_ctl = rtw_read32(rtwdev, REG_EFUSE_CTRL); + ft_ver = (u8)(efuse_ctl & BIT_MASK_EF_DATA); + if (ft_ver == EFUSE_BT_S1_TYPE1 || ft_ver == EFUSE_BT_S1_TYPE2) + rtw_warn(rtwdev, "BT S1 not calibrated, not recommended to verify BT for this module\n"); + return 0; }