[PATCH v5 06/10] mfd: intel-m10-bmc: Downscope SPI defines & prefix with M10BMC_N3000

From: Ilpo Järvinen
Date: Mon Dec 26 2022 - 13:02:21 EST

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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_N3000
to make it more obvious these are related to some board type. All
current non-N3000 board types have the same layout so they'll be
reused.

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

Reviewed-by: Russ Weight <russell.h.weight@xxxxxxxxx>
Reviewed-by: Xu Yilun <yilun.xu@xxxxxxxxx>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
drivers/mfd/intel-m10-bmc-core.c | 11 ++++
drivers/mfd/intel-m10-bmc-spi.c | 89 ++++++++++++++++++++++---------
include/linux/mfd/intel-m10-bmc.h | 46 ----------------
3 files changed, 74 insertions(+), 72 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 e8986154e965..04c83f9c6492 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_N3000_LEGACY_BUILD_VER 0x300468
+#define M10BMC_N3000_SYS_BASE 0x300800
+#define M10BMC_N3000_SYS_END 0x300fff
+#define M10BMC_N3000_FLASH_BASE 0x10000000
+#define M10BMC_N3000_FLASH_END 0x1fffffff
+#define M10BMC_N3000_MEM_END M10BMC_N3000_FLASH_END
+
+/* Register offset of system registers */
+#define NIOS2_FW_VERSION 0x0
+#define M10BMC_N3000_MAC_LOW 0x10
+#define M10BMC_N3000_MAC_HIGH 0x14
+#define M10BMC_N3000_TEST_REG 0x3c
+#define M10BMC_N3000_BUILD_VER 0x68
+#define M10BMC_N3000_VER_LEGACY_INVALID 0xffffffff
+
+/* Secure update doorbell register, in system register region */
+#define M10BMC_N3000_DOORBELL 0x400
+
+/* Authorization Result register, in system register region */
+#define M10BMC_N3000_AUTH_RESULT 0x404
+
+/* Addresses for security related data in FLASH */
+#define M10BMC_N3000_BMC_REH_ADDR 0x17ffc004
+#define M10BMC_N3000_BMC_PROG_ADDR 0x17ffc000
+#define M10BMC_N3000_BMC_PROG_MAGIC 0x5746
+
+#define M10BMC_N3000_SR_REH_ADDR 0x17ffd004
+#define M10BMC_N3000_SR_PROG_ADDR 0x17ffd000
+#define M10BMC_N3000_SR_PROG_MAGIC 0x5253
+
+#define M10BMC_N3000_PR_REH_ADDR 0x17ffe004
+#define M10BMC_N3000_PR_PROG_ADDR 0x17ffe000
+#define M10BMC_N3000_PR_PROG_MAGIC 0x5250
+
+/* Address of 4KB inverted bit vector containing staging area FLASH count */
+#define M10BMC_N3000_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_N3000_LEGACY_BUILD_VER, M10BMC_N3000_LEGACY_BUILD_VER),
+ regmap_reg_range(M10BMC_N3000_SYS_BASE, M10BMC_N3000_SYS_END),
+ regmap_reg_range(M10BMC_N3000_FLASH_BASE, M10BMC_N3000_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_N3000_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_N3000_LEGACY_BUILD_VER), so its read out value would have
+ * not been M10BMC_N3000_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_N3000_VER_LEGACY_INVALID.
*/
- ret = m10bmc_raw_read(ddata, M10BMC_LEGACY_BUILD_VER, &v);
+ ret = m10bmc_raw_read(ddata, M10BMC_N3000_LEGACY_BUILD_VER, &v);
if (ret)
return -ENODEV;

- if (v != M10BMC_VER_LEGACY_INVALID) {
+ if (v != M10BMC_N3000_VER_LEGACY_INVALID) {
dev_err(ddata->dev, "bad version M10BMC detected\n");
return -ENODEV;
}
@@ -92,24 +129,24 @@ static int intel_m10_bmc_spi_probe(struct spi_device *spi)
}

static const struct m10bmc_csr_map m10bmc_n3000_csr_map = {
- .base = M10BMC_SYS_BASE,
- .build_version = M10BMC_BUILD_VER,
+ .base = M10BMC_N3000_SYS_BASE,
+ .build_version = M10BMC_N3000_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,
- .rsu_status = M10BMC_DOORBELL,
- .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_N3000_MAC_LOW,
+ .mac_high = M10BMC_N3000_MAC_HIGH,
+ .doorbell = M10BMC_N3000_DOORBELL,
+ .auth_result = M10BMC_N3000_AUTH_RESULT,
+ .rsu_status = M10BMC_N3000_DOORBELL,
+ .bmc_prog_addr = M10BMC_N3000_BMC_PROG_ADDR,
+ .bmc_reh_addr = M10BMC_N3000_BMC_REH_ADDR,
+ .bmc_magic = M10BMC_N3000_BMC_PROG_MAGIC,
+ .sr_prog_addr = M10BMC_N3000_SR_PROG_ADDR,
+ .sr_reh_addr = M10BMC_N3000_SR_REH_ADDR,
+ .sr_magic = M10BMC_N3000_SR_PROG_MAGIC,
+ .pr_prog_addr = M10BMC_N3000_PR_PROG_ADDR,
+ .pr_reh_addr = M10BMC_N3000_PR_REH_ADDR,
+ .pr_magic = M10BMC_N3000_PR_PROG_MAGIC,
+ .rsu_update_counter = M10BMC_N3000_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 a009dd82f698..42e2ce7fe439 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

Next message: Ilpo Järvinen: "[PATCH v5 02/10] mfd: intel-m10-bmc: Rename the local variables"
Previous message: Ilpo Järvinen: "[PATCH v5 07/10] fpga: m10bmc-sec: Create helpers for rsu status/progress checks"
In reply to: Xu Yilun: "Re: [PATCH v5 07/10] fpga: m10bmc-sec: Create helpers for rsu status/progress checks"
Next in thread: Ilpo Järvinen: "[PATCH v5 02/10] mfd: intel-m10-bmc: Rename the local variables"
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