From f1ad8c9346de80c91d7f35d4a1b0d1f2b93b3661 Mon Sep 17 00:00:00 2001 From: Vladimir Kondratiev Date: Thu, 30 Jul 2015 13:51:49 +0300 Subject: [PATCH] wil6210: support boot loader struct v0 & v1 There are 2 versions of boot loader struct: v0 and v1. In the v1, boot loader build version added; as well as RF status. Support both versions. Boot loader structure v1 has RF status; ignore RF error if firmware not going to be loaded; driver can still be used to interact with the HW Signed-off-by: Vladimir Kondratiev Signed-off-by: Kalle Valo --- .../net/wireless/ath/wil6210/boot_loader.h | 56 ++++++++++++ drivers/net/wireless/ath/wil6210/main.c | 85 +++++++++++++++---- drivers/net/wireless/ath/wil6210/wil6210.h | 10 --- 3 files changed, 124 insertions(+), 27 deletions(-) create mode 100644 drivers/net/wireless/ath/wil6210/boot_loader.h diff --git a/drivers/net/wireless/ath/wil6210/boot_loader.h b/drivers/net/wireless/ath/wil6210/boot_loader.h new file mode 100644 index 000000000000..1b4fd402cba2 --- /dev/null +++ b/drivers/net/wireless/ath/wil6210/boot_loader.h @@ -0,0 +1,56 @@ +/* Copyright (c) 2015 Qualcomm Atheros, Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* This file contains the definitions for the boot loader + * for the Qualcomm "Sparrow" 60 Gigabit wireless solution. + */ +#ifndef BOOT_LOADER_EXPORT_H_ +#define BOOT_LOADER_EXPORT_H_ + +struct bl_dedicated_registers_v1 { + __le32 boot_loader_ready; /* 0x880A3C driver will poll + * this Dword until BL will + * set it to 1 (initial value + * should be 0) + */ + __le32 boot_loader_struct_version; /* 0x880A40 BL struct ver. */ + __le16 rf_type; /* 0x880A44 connected RF ID */ + __le16 rf_status; /* 0x880A46 RF status, + * 0 is OK else error + */ + __le32 baseband_type; /* 0x880A48 board type ID */ + u8 mac_address[6]; /* 0x880A4c BL mac address */ + u8 bl_version_major; /* 0x880A52 BL ver. major */ + u8 bl_version_minor; /* 0x880A53 BL ver. minor */ + __le16 bl_version_subminor; /* 0x880A54 BL ver. subminor */ + __le16 bl_version_build; /* 0x880A56 BL ver. build */ +} __packed; + +/* the following struct is the version 0 struct */ + +struct bl_dedicated_registers_v0 { + __le32 boot_loader_ready; /* 0x880A3C driver will poll + * this Dword until BL will + * set it to 1 (initial value + * should be 0) + */ +#define BL_READY (1) /* ready indication */ + __le32 boot_loader_struct_version; /* 0x880A40 BL struct ver. */ + __le32 rf_type; /* 0x880A44 connected RF ID */ + __le32 baseband_type; /* 0x880A48 board type ID */ + u8 mac_address[6]; /* 0x880A4c BL mac address */ +} __packed; + +#endif /* BOOT_LOADER_EXPORT_H_ */ diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c index 6ca6193ab8a6..ae0df3588e5d 100644 --- a/drivers/net/wireless/ath/wil6210/main.c +++ b/drivers/net/wireless/ath/wil6210/main.c @@ -21,6 +21,7 @@ #include "wil6210.h" #include "txrx.h" #include "wmi.h" +#include "boot_loader.h" #define WAIT_FOR_DISCONNECT_TIMEOUT_MS 2000 #define WAIT_FOR_DISCONNECT_INTERVAL_MS 10 @@ -565,7 +566,8 @@ static int wil_target_reset(struct wil6210_priv *wil) wil_halt_cpu(wil); /* clear all boot loader "ready" bits */ - W(RGF_USER_BL + offsetof(struct RGF_BL, ready), 0); + W(RGF_USER_BL + + offsetof(struct bl_dedicated_registers_v0, boot_loader_ready), 0); /* Clear Fw Download notification */ C(RGF_USER_USAGE_6, BIT(0)); @@ -607,7 +609,8 @@ static int wil_target_reset(struct wil6210_priv *wil) /* wait until device ready. typical time is 20..80 msec */ do { msleep(RST_DELAY); - x = R(RGF_USER_BL + offsetof(struct RGF_BL, ready)); + x = R(RGF_USER_BL + offsetof(struct bl_dedicated_registers_v0, + boot_loader_ready)); if (x1 != x) { wil_dbg_misc(wil, "BL.ready 0x%08x => 0x%08x\n", x1, x); x1 = x; @@ -617,7 +620,7 @@ static int wil_target_reset(struct wil6210_priv *wil) x); return -ETIME; } - } while (x != BIT_BL_READY); + } while (x != BL_READY); C(RGF_USER_CLKS_CTL_0, BIT_USER_CLKS_RST_PWGD); @@ -641,25 +644,71 @@ void wil_mbox_ring_le2cpus(struct wil6210_mbox_ring *r) static int wil_get_bl_info(struct wil6210_priv *wil) { struct net_device *ndev = wil_to_ndev(wil); - struct RGF_BL bl; - - wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL), sizeof(bl)); - le32_to_cpus(&bl.ready); - le32_to_cpus(&bl.version); - le32_to_cpus(&bl.rf_type); - le32_to_cpus(&bl.baseband_type); + union { + struct bl_dedicated_registers_v0 bl0; + struct bl_dedicated_registers_v1 bl1; + } bl; + u32 bl_ver; + u8 *mac; + u16 rf_status; + + bl_ver = R(RGF_USER_BL + offsetof(struct bl_dedicated_registers_v0, + boot_loader_struct_version)); + switch (bl_ver) { + case 0: + wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL), + sizeof(bl.bl0)); + le32_to_cpus(&bl.bl0.boot_loader_ready); + le32_to_cpus(&bl.bl0.boot_loader_struct_version); + le32_to_cpus(&bl.bl0.rf_type); + le32_to_cpus(&bl.bl0.baseband_type); + mac = bl.bl0.mac_address; + rf_status = 0; /* actually, unknown */ + wil_info(wil, + "Boot Loader struct v%d: MAC = %pM RF = 0x%08x bband = 0x%08x\n", + bl_ver, mac, + bl.bl0.rf_type, bl.bl0.baseband_type); + wil_info(wil, "Boot Loader build unknown for struct v0\n"); + break; + case 1: + wil_memcpy_fromio_32(&bl, wil->csr + HOSTADDR(RGF_USER_BL), + sizeof(bl.bl1)); + le32_to_cpus(&bl.bl1.boot_loader_ready); + le32_to_cpus(&bl.bl1.boot_loader_struct_version); + le16_to_cpus(&bl.bl1.rf_type); + rf_status = le16_to_cpu(bl.bl1.rf_status); + le32_to_cpus(&bl.bl1.baseband_type); + le16_to_cpus(&bl.bl1.bl_version_subminor); + le16_to_cpus(&bl.bl1.bl_version_build); + mac = bl.bl1.mac_address; + wil_info(wil, + "Boot Loader struct v%d: MAC = %pM RF = 0x%04x (status 0x%04x) bband = 0x%08x\n", + bl_ver, mac, + bl.bl1.rf_type, rf_status, + bl.bl1.baseband_type); + wil_info(wil, "Boot Loader build %d.%d.%d.%d\n", + bl.bl1.bl_version_major, bl.bl1.bl_version_minor, + bl.bl1.bl_version_subminor, bl.bl1.bl_version_build); + break; + default: + wil_err(wil, "BL: unsupported struct version 0x%08x\n", bl_ver); + return -EINVAL; + } - if (!is_valid_ether_addr(bl.mac_address)) { - wil_err(wil, "BL: Invalid MAC %pM\n", bl.mac_address); + if (!is_valid_ether_addr(mac)) { + wil_err(wil, "BL: Invalid MAC %pM\n", mac); return -EINVAL; } - ether_addr_copy(ndev->perm_addr, bl.mac_address); + ether_addr_copy(ndev->perm_addr, mac); if (!is_valid_ether_addr(ndev->dev_addr)) - ether_addr_copy(ndev->dev_addr, bl.mac_address); - wil_info(wil, - "Boot Loader: ver = %d MAC = %pM RF = 0x%08x bband = 0x%08x\n", - bl.version, bl.mac_address, bl.rf_type, bl.baseband_type); + ether_addr_copy(ndev->dev_addr, mac); + + if (rf_status) {/* bad RF cable? */ + wil_err(wil, "RF communication error 0x%04x", + rf_status); + return -EAGAIN; + } return 0; } @@ -735,6 +784,8 @@ int wil_reset(struct wil6210_priv *wil, bool load_fw) return rc; rc = wil_get_bl_info(wil); + if (rc == -EAGAIN && !load_fw) /* ignore RF error if not going up */ + rc = 0; if (rc) return rc; diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h index c63e4a35eaa0..b79ba4994d0c 100644 --- a/drivers/net/wireless/ath/wil6210/wil6210.h +++ b/drivers/net/wireless/ath/wil6210/wil6210.h @@ -127,16 +127,6 @@ struct RGF_ICR { u32 IMC; /* Mask Clear, write 1 to clear */ } __packed; -struct RGF_BL { - u32 ready; /* 0x880A3C bit [0] */ -#define BIT_BL_READY BIT(0) - u32 version; /* 0x880A40 version of the BL struct */ - u32 rf_type; /* 0x880A44 ID of the connected RF */ - u32 baseband_type; /* 0x880A48 ID of the baseband */ - u8 mac_address[ETH_ALEN]; /* 0x880A4C permanent MAC */ - u8 pad[2]; -} __packed; - /* registers - FW addresses */ #define RGF_USER_USAGE_1 (0x880004) #define RGF_USER_USAGE_6 (0x880018) -- 2.20.1