292 lines
9.1 KiB
C
292 lines
9.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Intel MAX 10 Board Management Controller chip.
|
|
*
|
|
* Copyright (C) 2018-2020 Intel Corporation, Inc.
|
|
*/
|
|
#ifndef __MFD_INTEL_M10_BMC_H
|
|
#define __MFD_INTEL_M10_BMC_H
|
|
|
|
#include <linux/bitfield.h>
|
|
#include <linux/bits.h>
|
|
#include <linux/dev_printk.h>
|
|
#include <linux/regmap.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
|
|
|
|
#define M10BMC_STAGING_BASE 0x18000000
|
|
#define M10BMC_STAGING_SIZE 0x3800000
|
|
|
|
/* Register offset of system registers */
|
|
#define NIOS2_N3000_FW_VERSION 0x0
|
|
#define M10BMC_N3000_MAC_LOW 0x10
|
|
#define M10BMC_N3000_MAC_BYTE4 GENMASK(7, 0)
|
|
#define M10BMC_N3000_MAC_BYTE3 GENMASK(15, 8)
|
|
#define M10BMC_N3000_MAC_BYTE2 GENMASK(23, 16)
|
|
#define M10BMC_N3000_MAC_BYTE1 GENMASK(31, 24)
|
|
#define M10BMC_N3000_MAC_HIGH 0x14
|
|
#define M10BMC_N3000_MAC_BYTE6 GENMASK(7, 0)
|
|
#define M10BMC_N3000_MAC_BYTE5 GENMASK(15, 8)
|
|
#define M10BMC_N3000_MAC_COUNT GENMASK(23, 16)
|
|
#define M10BMC_N3000_TEST_REG 0x3c
|
|
#define M10BMC_N3000_BUILD_VER 0x68
|
|
#define M10BMC_N3000_VER_MAJOR_MSK GENMASK(23, 16)
|
|
#define M10BMC_N3000_VER_PCB_INFO_MSK GENMASK(31, 24)
|
|
#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
|
|
|
|
/* Doorbell register fields */
|
|
#define DRBL_RSU_REQUEST BIT(0)
|
|
#define DRBL_RSU_PROGRESS GENMASK(7, 4)
|
|
#define DRBL_HOST_STATUS GENMASK(11, 8)
|
|
#define DRBL_RSU_STATUS GENMASK(23, 16)
|
|
#define DRBL_PKVL_EEPROM_LOAD_SEC BIT(24)
|
|
#define DRBL_PKVL1_POLL_EN BIT(25)
|
|
#define DRBL_PKVL2_POLL_EN BIT(26)
|
|
#define DRBL_CONFIG_SEL BIT(28)
|
|
#define DRBL_REBOOT_REQ BIT(29)
|
|
#define DRBL_REBOOT_DISABLED BIT(30)
|
|
|
|
/* Progress states */
|
|
#define RSU_PROG_IDLE 0x0
|
|
#define RSU_PROG_PREPARE 0x1
|
|
#define RSU_PROG_READY 0x3
|
|
#define RSU_PROG_AUTHENTICATING 0x4
|
|
#define RSU_PROG_COPYING 0x5
|
|
#define RSU_PROG_UPDATE_CANCEL 0x6
|
|
#define RSU_PROG_PROGRAM_KEY_HASH 0x7
|
|
#define RSU_PROG_RSU_DONE 0x8
|
|
#define RSU_PROG_PKVL_PROM_DONE 0x9
|
|
|
|
/* Device and error states */
|
|
#define RSU_STAT_NORMAL 0x0
|
|
#define RSU_STAT_TIMEOUT 0x1
|
|
#define RSU_STAT_AUTH_FAIL 0x2
|
|
#define RSU_STAT_COPY_FAIL 0x3
|
|
#define RSU_STAT_FATAL 0x4
|
|
#define RSU_STAT_PKVL_REJECT 0x5
|
|
#define RSU_STAT_NON_INC 0x6
|
|
#define RSU_STAT_ERASE_FAIL 0x7
|
|
#define RSU_STAT_WEAROUT 0x8
|
|
#define RSU_STAT_NIOS_OK 0x80
|
|
#define RSU_STAT_USER_OK 0x81
|
|
#define RSU_STAT_FACTORY_OK 0x82
|
|
#define RSU_STAT_USER_FAIL 0x83
|
|
#define RSU_STAT_FACTORY_FAIL 0x84
|
|
#define RSU_STAT_NIOS_FLASH_ERR 0x85
|
|
#define RSU_STAT_FPGA_FLASH_ERR 0x86
|
|
|
|
#define HOST_STATUS_IDLE 0x0
|
|
#define HOST_STATUS_WRITE_DONE 0x1
|
|
#define HOST_STATUS_ABORT_RSU 0x2
|
|
|
|
#define rsu_prog(doorbell) FIELD_GET(DRBL_RSU_PROGRESS, doorbell)
|
|
|
|
/* interval 100ms and timeout 5s */
|
|
#define NIOS_HANDSHAKE_INTERVAL_US (100 * 1000)
|
|
#define NIOS_HANDSHAKE_TIMEOUT_US (5 * 1000 * 1000)
|
|
|
|
/* RSU PREP Timeout (2 minutes) to erase flash staging area */
|
|
#define RSU_PREP_INTERVAL_MS 100
|
|
#define RSU_PREP_TIMEOUT_MS (2 * 60 * 1000)
|
|
|
|
/* RSU Complete Timeout (40 minutes) for full flash update */
|
|
#define RSU_COMPLETE_INTERVAL_MS 1000
|
|
#define RSU_COMPLETE_TIMEOUT_MS (40 * 60 * 1000)
|
|
|
|
/* 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
|
|
|
|
#define M10BMC_N6000_INDIRECT_BASE 0x400
|
|
|
|
#define M10BMC_N6000_SYS_BASE 0x0
|
|
#define M10BMC_N6000_SYS_END 0xfff
|
|
|
|
#define M10BMC_N6000_DOORBELL 0x1c0
|
|
#define M10BMC_N6000_AUTH_RESULT 0x1c4
|
|
#define AUTH_RESULT_RSU_STATUS GENMASK(23, 16)
|
|
|
|
#define M10BMC_N6000_BUILD_VER 0x0
|
|
#define NIOS2_N6000_FW_VERSION 0x4
|
|
#define M10BMC_N6000_MAC_LOW 0x20
|
|
#define M10BMC_N6000_MAC_HIGH (M10BMC_N6000_MAC_LOW + 4)
|
|
|
|
/* Addresses for security related data in FLASH */
|
|
#define M10BMC_N6000_BMC_REH_ADDR 0x7ffc004
|
|
#define M10BMC_N6000_BMC_PROG_ADDR 0x7ffc000
|
|
#define M10BMC_N6000_BMC_PROG_MAGIC 0x5746
|
|
|
|
#define M10BMC_N6000_SR_REH_ADDR 0x7ffd004
|
|
#define M10BMC_N6000_SR_PROG_ADDR 0x7ffd000
|
|
#define M10BMC_N6000_SR_PROG_MAGIC 0x5253
|
|
|
|
#define M10BMC_N6000_PR_REH_ADDR 0x7ffe004
|
|
#define M10BMC_N6000_PR_PROG_ADDR 0x7ffe000
|
|
#define M10BMC_N6000_PR_PROG_MAGIC 0x5250
|
|
|
|
#define M10BMC_N6000_STAGING_FLASH_COUNT 0x7ff5000
|
|
|
|
#define M10BMC_N6000_FLASH_MUX_CTRL 0x1d0
|
|
#define M10BMC_N6000_FLASH_MUX_SELECTION GENMASK(2, 0)
|
|
#define M10BMC_N6000_FLASH_MUX_IDLE 0
|
|
#define M10BMC_N6000_FLASH_MUX_NIOS 1
|
|
#define M10BMC_N6000_FLASH_MUX_HOST 2
|
|
#define M10BMC_N6000_FLASH_MUX_PFL 4
|
|
#define get_flash_mux(mux) FIELD_GET(M10BMC_N6000_FLASH_MUX_SELECTION, mux)
|
|
|
|
#define M10BMC_N6000_FLASH_NIOS_REQUEST BIT(4)
|
|
#define M10BMC_N6000_FLASH_HOST_REQUEST BIT(5)
|
|
|
|
#define M10BMC_N6000_FLASH_CTRL 0x40
|
|
#define M10BMC_N6000_FLASH_WR_MODE BIT(0)
|
|
#define M10BMC_N6000_FLASH_RD_MODE BIT(1)
|
|
#define M10BMC_N6000_FLASH_BUSY BIT(2)
|
|
#define M10BMC_N6000_FLASH_FIFO_SPACE GENMASK(13, 4)
|
|
#define M10BMC_N6000_FLASH_READ_COUNT GENMASK(25, 16)
|
|
|
|
#define M10BMC_N6000_FLASH_ADDR 0x44
|
|
#define M10BMC_N6000_FLASH_FIFO 0x800
|
|
#define M10BMC_N6000_READ_BLOCK_SIZE 0x800
|
|
#define M10BMC_N6000_FIFO_MAX_BYTES 0x800
|
|
#define M10BMC_N6000_FIFO_WORD_SIZE 4
|
|
#define M10BMC_N6000_FIFO_MAX_WORDS (M10BMC_N6000_FIFO_MAX_BYTES / \
|
|
M10BMC_N6000_FIFO_WORD_SIZE)
|
|
|
|
#define M10BMC_FLASH_INT_US 1
|
|
#define M10BMC_FLASH_TIMEOUT_US 10000
|
|
|
|
/**
|
|
* 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;
|
|
};
|
|
|
|
struct intel_m10bmc;
|
|
|
|
/**
|
|
* struct intel_m10bmc_flash_bulk_ops - device specific operations for flash R/W
|
|
* @read: read a block of data from flash
|
|
* @write: write a block of data to flash
|
|
* @lock_write: locks flash access for erase+write
|
|
* @unlock_write: unlock flash access
|
|
*
|
|
* Write must be protected with @lock_write and @unlock_write. While the flash
|
|
* is locked, @read returns -EBUSY.
|
|
*/
|
|
struct intel_m10bmc_flash_bulk_ops {
|
|
int (*read)(struct intel_m10bmc *m10bmc, u8 *buf, u32 addr, u32 size);
|
|
int (*write)(struct intel_m10bmc *m10bmc, const u8 *buf, u32 offset, u32 size);
|
|
int (*lock_write)(struct intel_m10bmc *m10bmc);
|
|
void (*unlock_write)(struct intel_m10bmc *m10bmc);
|
|
};
|
|
|
|
/**
|
|
* struct intel_m10bmc - Intel MAX 10 BMC parent driver data structure
|
|
* @dev: this device
|
|
* @regmap: the regmap used to access registers by m10bmc itself
|
|
* @info: the platform information for MAX10 BMC
|
|
* @flash_bulk_ops: optional device specific operations for flash R/W
|
|
*/
|
|
struct intel_m10bmc {
|
|
struct device *dev;
|
|
struct regmap *regmap;
|
|
const struct intel_m10bmc_platform_info *info;
|
|
const struct intel_m10bmc_flash_bulk_ops *flash_bulk_ops;
|
|
};
|
|
|
|
/*
|
|
* register access helper functions.
|
|
*
|
|
* m10bmc_raw_read - read m10bmc register per addr
|
|
* m10bmc_sys_read - read m10bmc system register per offset
|
|
*/
|
|
static inline int
|
|
m10bmc_raw_read(struct intel_m10bmc *m10bmc, unsigned int addr,
|
|
unsigned int *val)
|
|
{
|
|
int ret;
|
|
|
|
ret = regmap_read(m10bmc->regmap, addr, val);
|
|
if (ret)
|
|
dev_err(m10bmc->dev, "fail to read raw reg %x: %d\n",
|
|
addr, ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* 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 function helps to simplify the accessing of the system registers. And if
|
|
* the base is reconfigured in HW, SW developers could simply change the
|
|
* csr_map's base accordingly.
|
|
*/
|
|
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
|
|
*/
|
|
int m10bmc_dev_init(struct intel_m10bmc *m10bmc, const struct intel_m10bmc_platform_info *info);
|
|
extern const struct attribute_group *m10bmc_dev_groups[];
|
|
|
|
#endif /* __MFD_INTEL_M10_BMC_H */
|