From 6052a005caf9cd484fe6368a31c736ac17ebaf66 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ilpo=20J=C3=A4rvinen?= Date: Mon, 16 Jan 2023 12:08:39 +0200 Subject: [PATCH] mfd: intel-m10-bmc: Support multiple CSR register layouts MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit There are different addresses for the MAX10 CSR registers. Introducing a new data structure m10bmc_csr_map for the register definition of MAX10 CSR. Provide the csr_map for SPI. Co-developed-by: Tianfei zhang Signed-off-by: Tianfei zhang Reviewed-by: Russ Weight Reviewed-by: Xu Yilun Signed-off-by: Ilpo Järvinen Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20230116100845.6153-6-ilpo.jarvinen@linux.intel.com --- drivers/fpga/intel-m10-bmc-sec-update.c | 73 ++++++++++++++++++++++----------- drivers/mfd/intel-m10-bmc-core.c | 10 ++--- drivers/mfd/intel-m10-bmc-spi.c | 23 +++++++++++ include/linux/mfd/intel-m10-bmc.h | 38 +++++++++++++++-- 4 files changed, 111 insertions(+), 33 deletions(-) diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c index 79d4885..dbe8aff 100644 --- a/drivers/fpga/intel-m10-bmc-sec-update.c +++ b/drivers/fpga/intel-m10-bmc-sec-update.c @@ -73,16 +73,24 @@ show_root_entry_hash(struct device *dev, u32 exp_magic, return cnt; } -#define DEVICE_ATTR_SEC_REH_RO(_name, _magic, _prog_addr, _reh_addr) \ +#define DEVICE_ATTR_SEC_REH_RO(_name) \ static ssize_t _name##_root_entry_hash_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ -{ return show_root_entry_hash(dev, _magic, _prog_addr, _reh_addr, buf); } \ +{ \ + struct m10bmc_sec *sec = dev_get_drvdata(dev); \ + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; \ + \ + return show_root_entry_hash(dev, csr_map->_name##_magic, \ + csr_map->_name##_prog_addr, \ + csr_map->_name##_reh_addr, \ + buf); \ +} \ static DEVICE_ATTR_RO(_name##_root_entry_hash) -DEVICE_ATTR_SEC_REH_RO(bmc, BMC_PROG_MAGIC, BMC_PROG_ADDR, BMC_REH_ADDR); -DEVICE_ATTR_SEC_REH_RO(sr, SR_PROG_MAGIC, SR_PROG_ADDR, SR_REH_ADDR); -DEVICE_ATTR_SEC_REH_RO(pr, PR_PROG_MAGIC, PR_PROG_ADDR, PR_REH_ADDR); +DEVICE_ATTR_SEC_REH_RO(bmc); +DEVICE_ATTR_SEC_REH_RO(sr); +DEVICE_ATTR_SEC_REH_RO(pr); #define CSK_BIT_LEN 128U #define CSK_32ARRAY_SIZE DIV_ROUND_UP(CSK_BIT_LEN, 32) @@ -122,18 +130,25 @@ show_canceled_csk(struct device *dev, u32 addr, char *buf) return bitmap_print_to_pagebuf(1, buf, csk_map, CSK_BIT_LEN); } -#define DEVICE_ATTR_SEC_CSK_RO(_name, _addr) \ +#define DEVICE_ATTR_SEC_CSK_RO(_name) \ static ssize_t _name##_canceled_csks_show(struct device *dev, \ struct device_attribute *attr, \ char *buf) \ -{ return show_canceled_csk(dev, _addr, buf); } \ +{ \ + struct m10bmc_sec *sec = dev_get_drvdata(dev); \ + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; \ + \ + return show_canceled_csk(dev, \ + csr_map->_name##_prog_addr + CSK_VEC_OFFSET, \ + buf); \ +} \ static DEVICE_ATTR_RO(_name##_canceled_csks) #define CSK_VEC_OFFSET 0x34 -DEVICE_ATTR_SEC_CSK_RO(bmc, BMC_PROG_ADDR + CSK_VEC_OFFSET); -DEVICE_ATTR_SEC_CSK_RO(sr, SR_PROG_ADDR + CSK_VEC_OFFSET); -DEVICE_ATTR_SEC_CSK_RO(pr, PR_PROG_ADDR + CSK_VEC_OFFSET); +DEVICE_ATTR_SEC_CSK_RO(bmc); +DEVICE_ATTR_SEC_CSK_RO(sr); +DEVICE_ATTR_SEC_CSK_RO(pr); #define FLASH_COUNT_SIZE 4096 /* count stored as inverted bit vector */ @@ -141,6 +156,7 @@ static ssize_t flash_count_show(struct device *dev, struct device_attribute *attr, char *buf) { struct m10bmc_sec *sec = dev_get_drvdata(dev); + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; unsigned int stride, num_bits; u8 *flash_buf; int cnt, ret; @@ -160,12 +176,12 @@ static ssize_t flash_count_show(struct device *dev, if (!flash_buf) return -ENOMEM; - ret = regmap_bulk_read(sec->m10bmc->regmap, STAGING_FLASH_COUNT, + ret = regmap_bulk_read(sec->m10bmc->regmap, csr_map->rsu_update_counter, flash_buf, FLASH_COUNT_SIZE / stride); if (ret) { dev_err(sec->dev, "failed to read flash count: %x cnt %x: %d\n", - STAGING_FLASH_COUNT, FLASH_COUNT_SIZE / stride, ret); + csr_map->rsu_update_counter, FLASH_COUNT_SIZE / stride, ret); goto exit_free; } cnt = num_bits - bitmap_weight((unsigned long *)flash_buf, num_bits); @@ -200,20 +216,22 @@ static const struct attribute_group *m10bmc_sec_attr_groups[] = { static void log_error_regs(struct m10bmc_sec *sec, u32 doorbell) { + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; u32 auth_result; dev_err(sec->dev, "RSU error status: 0x%08x\n", doorbell); - if (!m10bmc_sys_read(sec->m10bmc, M10BMC_AUTH_RESULT, &auth_result)) + if (!m10bmc_sys_read(sec->m10bmc, csr_map->auth_result, &auth_result)) dev_err(sec->dev, "RSU auth result: 0x%08x\n", auth_result); } static enum fw_upload_err rsu_check_idle(struct m10bmc_sec *sec) { + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; u32 doorbell; int ret; - ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); + ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); if (ret) return FW_UPLOAD_ERR_RW_ERROR; @@ -246,11 +264,12 @@ static inline bool rsu_start_done(u32 doorbell) static enum fw_upload_err rsu_update_init(struct m10bmc_sec *sec) { + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; u32 doorbell, status; int ret; ret = regmap_update_bits(sec->m10bmc->regmap, - M10BMC_SYS_BASE + M10BMC_DOORBELL, + csr_map->base + csr_map->doorbell, DRBL_RSU_REQUEST | DRBL_HOST_STATUS, DRBL_RSU_REQUEST | FIELD_PREP(DRBL_HOST_STATUS, @@ -259,7 +278,7 @@ static enum fw_upload_err rsu_update_init(struct m10bmc_sec *sec) return FW_UPLOAD_ERR_RW_ERROR; ret = regmap_read_poll_timeout(sec->m10bmc->regmap, - M10BMC_SYS_BASE + M10BMC_DOORBELL, + csr_map->base + csr_map->doorbell, doorbell, rsu_start_done(doorbell), NIOS_HANDSHAKE_INTERVAL_US, @@ -286,11 +305,12 @@ static enum fw_upload_err rsu_update_init(struct m10bmc_sec *sec) static enum fw_upload_err rsu_prog_ready(struct m10bmc_sec *sec) { + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; unsigned long poll_timeout; u32 doorbell, progress; int ret; - ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); + ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); if (ret) return FW_UPLOAD_ERR_RW_ERROR; @@ -300,7 +320,7 @@ static enum fw_upload_err rsu_prog_ready(struct m10bmc_sec *sec) if (time_after(jiffies, poll_timeout)) break; - ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); + ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); if (ret) return FW_UPLOAD_ERR_RW_ERROR; } @@ -319,11 +339,12 @@ static enum fw_upload_err rsu_prog_ready(struct m10bmc_sec *sec) static enum fw_upload_err rsu_send_data(struct m10bmc_sec *sec) { + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; u32 doorbell; int ret; ret = regmap_update_bits(sec->m10bmc->regmap, - M10BMC_SYS_BASE + M10BMC_DOORBELL, + csr_map->base + csr_map->doorbell, DRBL_HOST_STATUS, FIELD_PREP(DRBL_HOST_STATUS, HOST_STATUS_WRITE_DONE)); @@ -331,7 +352,7 @@ static enum fw_upload_err rsu_send_data(struct m10bmc_sec *sec) return FW_UPLOAD_ERR_RW_ERROR; ret = regmap_read_poll_timeout(sec->m10bmc->regmap, - M10BMC_SYS_BASE + M10BMC_DOORBELL, + csr_map->base + csr_map->doorbell, doorbell, rsu_prog(doorbell) != RSU_PROG_READY, NIOS_HANDSHAKE_INTERVAL_US, @@ -360,7 +381,9 @@ static enum fw_upload_err rsu_send_data(struct m10bmc_sec *sec) static int rsu_check_complete(struct m10bmc_sec *sec, u32 *doorbell) { - if (m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, doorbell)) + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; + + if (m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, doorbell)) return -EIO; switch (rsu_stat(*doorbell)) { @@ -389,10 +412,11 @@ static int rsu_check_complete(struct m10bmc_sec *sec, u32 *doorbell) static enum fw_upload_err rsu_cancel(struct m10bmc_sec *sec) { + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; u32 doorbell; int ret; - ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); + ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); if (ret) return FW_UPLOAD_ERR_RW_ERROR; @@ -400,7 +424,7 @@ static enum fw_upload_err rsu_cancel(struct m10bmc_sec *sec) return FW_UPLOAD_ERR_BUSY; ret = regmap_update_bits(sec->m10bmc->regmap, - M10BMC_SYS_BASE + M10BMC_DOORBELL, + csr_map->base + csr_map->doorbell, DRBL_HOST_STATUS, FIELD_PREP(DRBL_HOST_STATUS, HOST_STATUS_ABORT_RSU)); @@ -445,6 +469,7 @@ static enum fw_upload_err m10bmc_sec_write(struct fw_upload *fwl, const u8 *data u32 offset, u32 size, u32 *written) { struct m10bmc_sec *sec = fwl->dd_handle; + const struct m10bmc_csr_map *csr_map = sec->m10bmc->info->csr_map; u32 blk_size, doorbell, extra_offset; unsigned int stride, extra = 0; int ret; @@ -453,7 +478,7 @@ static enum fw_upload_err m10bmc_sec_write(struct fw_upload *fwl, const u8 *data if (sec->cancel_request) return rsu_cancel(sec); - ret = m10bmc_sys_read(sec->m10bmc, M10BMC_DOORBELL, &doorbell); + ret = m10bmc_sys_read(sec->m10bmc, csr_map->doorbell, &doorbell); if (ret) { return FW_UPLOAD_ERR_RW_ERROR; } else if (rsu_prog(doorbell) != RSU_PROG_READY) { diff --git a/drivers/mfd/intel-m10-bmc-core.c b/drivers/mfd/intel-m10-bmc-core.c index dd26e3a..cbea8d4 100644 --- a/drivers/mfd/intel-m10-bmc-core.c +++ b/drivers/mfd/intel-m10-bmc-core.c @@ -19,7 +19,7 @@ static ssize_t bmc_version_show(struct device *dev, unsigned int val; int ret; - ret = m10bmc_sys_read(ddata, M10BMC_BUILD_VER, &val); + ret = m10bmc_sys_read(ddata, ddata->info->csr_map->build_version, &val); if (ret) return ret; @@ -34,7 +34,7 @@ static ssize_t bmcfw_version_show(struct device *dev, unsigned int val; int ret; - ret = m10bmc_sys_read(ddata, NIOS2_FW_VERSION, &val); + ret = m10bmc_sys_read(ddata, ddata->info->csr_map->fw_version, &val); if (ret) return ret; @@ -49,11 +49,11 @@ static ssize_t mac_address_show(struct device *dev, unsigned int macaddr_low, macaddr_high; int ret; - ret = m10bmc_sys_read(ddata, M10BMC_MAC_LOW, &macaddr_low); + ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_low, &macaddr_low); if (ret) return ret; - ret = m10bmc_sys_read(ddata, M10BMC_MAC_HIGH, &macaddr_high); + ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_high, &macaddr_high); if (ret) return ret; @@ -74,7 +74,7 @@ static ssize_t mac_count_show(struct device *dev, unsigned int macaddr_high; int ret; - ret = m10bmc_sys_read(ddata, M10BMC_MAC_HIGH, &macaddr_high); + ret = m10bmc_sys_read(ddata, ddata->info->csr_map->mac_high, &macaddr_high); if (ret) return ret; diff --git a/drivers/mfd/intel-m10-bmc-spi.c b/drivers/mfd/intel-m10-bmc-spi.c index be1d4dd..3ed7a71 100644 --- a/drivers/mfd/intel-m10-bmc-spi.c +++ b/drivers/mfd/intel-m10-bmc-spi.c @@ -91,6 +91,26 @@ static int intel_m10_bmc_spi_probe(struct spi_device *spi) return m10bmc_dev_init(ddata, info); } +static const struct m10bmc_csr_map m10bmc_n3000_csr_map = { + .base = M10BMC_SYS_BASE, + .build_version = M10BMC_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, +}; + static struct mfd_cell m10bmc_d5005_subdevs[] = { { .name = "d5005bmc-hwmon" }, { .name = "d5005bmc-sec-update" }, @@ -109,16 +129,19 @@ static struct mfd_cell m10bmc_n5010_subdevs[] = { static const struct intel_m10bmc_platform_info m10bmc_spi_n3000 = { .cells = m10bmc_pacn3000_subdevs, .n_cells = ARRAY_SIZE(m10bmc_pacn3000_subdevs), + .csr_map = &m10bmc_n3000_csr_map, }; static const struct intel_m10bmc_platform_info m10bmc_spi_d5005 = { .cells = m10bmc_d5005_subdevs, .n_cells = ARRAY_SIZE(m10bmc_d5005_subdevs), + .csr_map = &m10bmc_n3000_csr_map, }; static const struct intel_m10bmc_platform_info m10bmc_spi_n5010 = { .cells = m10bmc_n5010_subdevs, .n_cells = ARRAY_SIZE(m10bmc_n5010_subdevs), + .csr_map = &m10bmc_n3000_csr_map, }; static const struct spi_device_id m10bmc_spi_id[] = { diff --git a/include/linux/mfd/intel-m10-bmc.h b/include/linux/mfd/intel-m10-bmc.h index a80deb61..d569a72 100644 --- a/include/linux/mfd/intel-m10-bmc.h +++ b/include/linux/mfd/intel-m10-bmc.h @@ -122,13 +122,38 @@ #define STAGING_FLASH_COUNT 0x17ffb000 /** + * struct m10bmc_csr_map - Intel MAX 10 BMC CSR register map + */ +struct m10bmc_csr_map { + unsigned int base; + unsigned int build_version; + unsigned int fw_version; + unsigned int mac_low; + unsigned int mac_high; + unsigned int doorbell; + unsigned int auth_result; + unsigned int bmc_prog_addr; + unsigned int bmc_reh_addr; + unsigned int bmc_magic; + unsigned int sr_prog_addr; + unsigned int sr_reh_addr; + unsigned int sr_magic; + unsigned int pr_prog_addr; + unsigned int pr_reh_addr; + unsigned int pr_magic; + unsigned int rsu_update_counter; +}; + +/** * struct intel_m10bmc_platform_info - Intel MAX 10 BMC platform specific information * @cells: MFD cells * @n_cells: MFD cells ARRAY_SIZE() + * @csr_map: the mappings for register definition of MAX10 BMC */ struct intel_m10bmc_platform_info { struct mfd_cell *cells; int n_cells; + const struct m10bmc_csr_map *csr_map; }; /** @@ -167,12 +192,17 @@ m10bmc_raw_read(struct intel_m10bmc *m10bmc, unsigned int addr, * The base of the system registers could be configured by HW developers, and * in HW SPEC, the base is not added to the addresses of the system registers. * - * This macro helps to simplify the accessing of the system registers. And if + * This function helps to simplify the accessing of the system registers. And if * the base is reconfigured in HW, SW developers could simply change the - * M10BMC_SYS_BASE accordingly. + * csr_map's base accordingly. */ -#define m10bmc_sys_read(m10bmc, offset, val) \ - m10bmc_raw_read(m10bmc, M10BMC_SYS_BASE + (offset), val) +static inline int m10bmc_sys_read(struct intel_m10bmc *m10bmc, unsigned int offset, + unsigned int *val) +{ + const struct m10bmc_csr_map *csr_map = m10bmc->info->csr_map; + + return m10bmc_raw_read(m10bmc, csr_map->base + offset, val); +} /* * MAX10 BMC Core support -- 2.7.4