Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>
To:     linux-fpga@vger.kernel.org, Xu Yilun <yilun.xu@intel.com>,
        Wu Hao <hao.wu@intel.com>, Tom Rix <trix@redhat.com>,
        Moritz Fischer <mdf@kernel.org>, Lee Jones <lee@kernel.org>,
        Matthew Gerlach <matthew.gerlach@linux.intel.com>,
        Russ Weight <russell.h.weight@intel.com>,
        Tianfei zhang <tianfei.zhang@intel.com>,
        Mark Brown <broonie@kernel.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        Marco Pagani <marpagan@redhat.com>,
        linux-kernel@vger.kernel.org
Cc:     =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>
Subject: [PATCH v3 6/9] mfd: intel-m10-bmc: Downscope SPI defines & prefix with M10BMC_SPI
Date:   Fri,  2 Dec 2022 12:08:38 +0200
Message-Id: <20221202100841.4741-7-ilpo.jarvinen@linux.intel.com>
In-Reply-To: <20221202100841.4741-1-ilpo.jarvinen@linux.intel.com>
References: <20221202100841.4741-1-ilpo.jarvinen@linux.intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

Move SPI based board definitions to per interface file from the global
header. This makes it harder to use them accidently in the
generic/interface agnostic code. Prefix the defines with M10BMC_SPI
to make it more obvious these are related to SPI only.

Some bitfield defs are also moved to intel-m10-bmc-core which seems
more appropriate for them.

Reviewed-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/mfd/intel-m10-bmc-core.c  | 11 ++++
 drivers/mfd/intel-m10-bmc-spi.c   | 87 ++++++++++++++++++++++---------
 include/linux/mfd/intel-m10-bmc.h | 46 ----------------
 3 files changed, 73 insertions(+), 71 deletions(-)

diff --git a/drivers/mfd/intel-m10-bmc-core.c b/drivers/mfd/intel-m10-bmc-core.c
index 51b78b868235..50a4ec758bdb 100644
--- a/drivers/mfd/intel-m10-bmc-core.c
+++ b/drivers/mfd/intel-m10-bmc-core.c
@@ -12,6 +12,17 @@
 #include <linux/mfd/intel-m10-bmc.h>
 #include <linux/module.h>
 
+/* Register fields of system registers */
+#define M10BMC_MAC_BYTE4		GENMASK(7, 0)
+#define M10BMC_MAC_BYTE3		GENMASK(15, 8)
+#define M10BMC_MAC_BYTE2		GENMASK(23, 16)
+#define M10BMC_MAC_BYTE1		GENMASK(31, 24)
+#define M10BMC_MAC_BYTE6		GENMASK(7, 0)
+#define M10BMC_MAC_BYTE5		GENMASK(15, 8)
+#define M10BMC_MAC_COUNT		GENMASK(23, 16)
+#define M10BMC_VER_MAJOR_MSK		GENMASK(23, 16)
+#define M10BMC_VER_PCB_INFO_MSK		GENMASK(31, 24)
+
 static ssize_t bmc_version_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
diff --git a/drivers/mfd/intel-m10-bmc-spi.c b/drivers/mfd/intel-m10-bmc-spi.c
index 611a4ab42717..e99fe7c43314 100644
--- a/drivers/mfd/intel-m10-bmc-spi.c
+++ b/drivers/mfd/intel-m10-bmc-spi.c
@@ -13,10 +13,47 @@
 #include <linux/regmap.h>
 #include <linux/spi/spi.h>
 
+#define M10BMC_SPI_LEGACY_BUILD_VER	0x300468
+#define M10BMC_SPI_SYS_BASE		0x300800
+#define M10BMC_SPI_SYS_END		0x300fff
+#define M10BMC_SPI_FLASH_BASE		0x10000000
+#define M10BMC_SPI_FLASH_END		0x1fffffff
+#define M10BMC_SPI_MEM_END		M10BMC_SPI_FLASH_END
+
+/* Register offset of system registers */
+#define NIOS2_FW_VERSION		0x0
+#define M10BMC_SPI_MAC_LOW		0x10
+#define M10BMC_SPI_MAC_HIGH		0x14
+#define M10BMC_SPI_TEST_REG		0x3c
+#define M10BMC_SPI_BUILD_VER		0x68
+#define M10BMC_SPI_VER_LEGACY_INVALID	0xffffffff
+
+/* Secure update doorbell register, in system register region */
+#define M10BMC_SPI_DOORBELL		0x400
+
+/* Authorization Result register, in system register region */
+#define M10BMC_SPI_AUTH_RESULT		0x404
+
+/* Addresses for security related data in FLASH */
+#define M10BMC_SPI_BMC_REH_ADDR		0x17ffc004
+#define M10BMC_SPI_BMC_PROG_ADDR	0x17ffc000
+#define M10BMC_SPI_BMC_PROG_MAGIC	0x5746
+
+#define M10BMC_SPI_SR_REH_ADDR		0x17ffd004
+#define M10BMC_SPI_SR_PROG_ADDR		0x17ffd000
+#define M10BMC_SPI_SR_PROG_MAGIC	0x5253
+
+#define M10BMC_SPI_PR_REH_ADDR		0x17ffe004
+#define M10BMC_SPI_PR_PROG_ADDR		0x17ffe000
+#define M10BMC_SPI_PR_PROG_MAGIC	0x5250
+
+/* Address of 4KB inverted bit vector containing staging area FLASH count */
+#define M10BMC_SPI_STAGING_FLASH_COUNT	0x17ffb000
+
 static const struct regmap_range m10bmc_regmap_range[] = {
-	regmap_reg_range(M10BMC_LEGACY_BUILD_VER, M10BMC_LEGACY_BUILD_VER),
-	regmap_reg_range(M10BMC_SYS_BASE, M10BMC_SYS_END),
-	regmap_reg_range(M10BMC_FLASH_BASE, M10BMC_FLASH_END),
+	regmap_reg_range(M10BMC_SPI_LEGACY_BUILD_VER, M10BMC_SPI_LEGACY_BUILD_VER),
+	regmap_reg_range(M10BMC_SPI_SYS_BASE, M10BMC_SPI_SYS_END),
+	regmap_reg_range(M10BMC_SPI_FLASH_BASE, M10BMC_SPI_FLASH_END),
 };
 
 static const struct regmap_access_table m10bmc_access_table = {
@@ -30,7 +67,7 @@ static struct regmap_config intel_m10bmc_regmap_config = {
 	.reg_stride = 4,
 	.wr_table = &m10bmc_access_table,
 	.rd_table = &m10bmc_access_table,
-	.max_register = M10BMC_MEM_END,
+	.max_register = M10BMC_SPI_MEM_END,
 };
 
 static int check_m10bmc_version(struct intel_m10bmc *ddata)
@@ -41,16 +78,16 @@ static int check_m10bmc_version(struct intel_m10bmc *ddata)
 	/*
 	 * This check is to filter out the very old legacy BMC versions. In the
 	 * old BMC chips, the BMC version info is stored in the old version
-	 * register (M10BMC_LEGACY_BUILD_VER), so its read out value would have
-	 * not been M10BMC_VER_LEGACY_INVALID (0xffffffff). But in new BMC
+	 * register (M10BMC_SPI_LEGACY_BUILD_VER), so its read out value would have
+	 * not been M10BMC_SPI_VER_LEGACY_INVALID (0xffffffff). But in new BMC
 	 * chips that the driver supports, the value of this register should be
-	 * M10BMC_VER_LEGACY_INVALID.
+	 * M10BMC_SPI_VER_LEGACY_INVALID.
 	 */
-	ret = m10bmc_raw_read(ddata, M10BMC_LEGACY_BUILD_VER, &v);
+	ret = m10bmc_raw_read(ddata, M10BMC_SPI_LEGACY_BUILD_VER, &v);
 	if (ret)
 		return -ENODEV;
 
-	if (v != M10BMC_VER_LEGACY_INVALID) {
+	if (v != M10BMC_SPI_VER_LEGACY_INVALID) {
 		dev_err(ddata->dev, "bad version M10BMC detected\n");
 		return -ENODEV;
 	}
@@ -92,23 +129,23 @@ static int intel_m10_bmc_spi_probe(struct spi_device *spi)
 }
 
 static const struct m10bmc_csr_map m10bmc_spi_csr_map = {
-	.base = M10BMC_SYS_BASE,
-	.build_version = M10BMC_BUILD_VER,
+	.base = M10BMC_SPI_SYS_BASE,
+	.build_version = M10BMC_SPI_BUILD_VER,
 	.fw_version = NIOS2_FW_VERSION,
-	.mac_low = M10BMC_MAC_LOW,
-	.mac_high = M10BMC_MAC_HIGH,
-	.doorbell = M10BMC_DOORBELL,
-	.auth_result = M10BMC_AUTH_RESULT,
-	.bmc_prog_addr = BMC_PROG_ADDR,
-	.bmc_reh_addr = BMC_REH_ADDR,
-	.bmc_magic = BMC_PROG_MAGIC,
-	.sr_prog_addr = SR_PROG_ADDR,
-	.sr_reh_addr = SR_REH_ADDR,
-	.sr_magic = SR_PROG_MAGIC,
-	.pr_prog_addr = PR_PROG_ADDR,
-	.pr_reh_addr = PR_REH_ADDR,
-	.pr_magic = PR_PROG_MAGIC,
-	.rsu_update_counter = STAGING_FLASH_COUNT,
+	.mac_low = M10BMC_SPI_MAC_LOW,
+	.mac_high = M10BMC_SPI_MAC_HIGH,
+	.doorbell = M10BMC_SPI_DOORBELL,
+	.auth_result = M10BMC_SPI_AUTH_RESULT,
+	.bmc_prog_addr = M10BMC_SPI_BMC_PROG_ADDR,
+	.bmc_reh_addr = M10BMC_SPI_BMC_REH_ADDR,
+	.bmc_magic = M10BMC_SPI_BMC_PROG_MAGIC,
+	.sr_prog_addr = M10BMC_SPI_SR_PROG_ADDR,
+	.sr_reh_addr = M10BMC_SPI_SR_REH_ADDR,
+	.sr_magic = M10BMC_SPI_SR_PROG_MAGIC,
+	.pr_prog_addr = M10BMC_SPI_PR_PROG_ADDR,
+	.pr_reh_addr = M10BMC_SPI_PR_REH_ADDR,
+	.pr_magic = M10BMC_SPI_PR_PROG_MAGIC,
+	.rsu_update_counter = M10BMC_SPI_STAGING_FLASH_COUNT,
 };
 
 static struct mfd_cell m10bmc_d5005_subdevs[] = {
diff --git a/include/linux/mfd/intel-m10-bmc.h b/include/linux/mfd/intel-m10-bmc.h
index 91567375f1bf..71ace732bb48 100644
--- a/include/linux/mfd/intel-m10-bmc.h
+++ b/include/linux/mfd/intel-m10-bmc.h
@@ -9,39 +9,9 @@
 
 #include <linux/regmap.h>
 
-#define M10BMC_LEGACY_BUILD_VER		0x300468
-#define M10BMC_SYS_BASE			0x300800
-#define M10BMC_SYS_END			0x300fff
-#define M10BMC_FLASH_BASE		0x10000000
-#define M10BMC_FLASH_END		0x1fffffff
-#define M10BMC_MEM_END			M10BMC_FLASH_END
-
 #define M10BMC_STAGING_BASE		0x18000000
 #define M10BMC_STAGING_SIZE		0x3800000
 
-/* Register offset of system registers */
-#define NIOS2_FW_VERSION		0x0
-#define M10BMC_MAC_LOW			0x10
-#define M10BMC_MAC_BYTE4		GENMASK(7, 0)
-#define M10BMC_MAC_BYTE3		GENMASK(15, 8)
-#define M10BMC_MAC_BYTE2		GENMASK(23, 16)
-#define M10BMC_MAC_BYTE1		GENMASK(31, 24)
-#define M10BMC_MAC_HIGH			0x14
-#define M10BMC_MAC_BYTE6		GENMASK(7, 0)
-#define M10BMC_MAC_BYTE5		GENMASK(15, 8)
-#define M10BMC_MAC_COUNT		GENMASK(23, 16)
-#define M10BMC_TEST_REG			0x3c
-#define M10BMC_BUILD_VER		0x68
-#define M10BMC_VER_MAJOR_MSK		GENMASK(23, 16)
-#define M10BMC_VER_PCB_INFO_MSK		GENMASK(31, 24)
-#define M10BMC_VER_LEGACY_INVALID	0xffffffff
-
-/* Secure update doorbell register, in system register region */
-#define M10BMC_DOORBELL			0x400
-
-/* Authorization Result register, in system register region */
-#define M10BMC_AUTH_RESULT		0x404
-
 /* Doorbell register fields */
 #define DRBL_RSU_REQUEST		BIT(0)
 #define DRBL_RSU_PROGRESS		GENMASK(7, 4)
@@ -102,22 +72,6 @@
 #define RSU_COMPLETE_INTERVAL_MS	1000
 #define RSU_COMPLETE_TIMEOUT_MS		(40 * 60 * 1000)
 
-/* Addresses for security related data in FLASH */
-#define BMC_REH_ADDR	0x17ffc004
-#define BMC_PROG_ADDR	0x17ffc000
-#define BMC_PROG_MAGIC	0x5746
-
-#define SR_REH_ADDR	0x17ffd004
-#define SR_PROG_ADDR	0x17ffd000
-#define SR_PROG_MAGIC	0x5253
-
-#define PR_REH_ADDR	0x17ffe004
-#define PR_PROG_ADDR	0x17ffe000
-#define PR_PROG_MAGIC	0x5250
-
-/* Address of 4KB inverted bit vector containing staging area FLASH count */
-#define STAGING_FLASH_COUNT	0x17ffb000
-
 /**
  * struct m10bmc_csr_map - Intel MAX 10 BMC CSR register map
  */
-- 
2.30.2