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author | Tom Rini <trini@konsulko.com> | 2020-10-29 11:30:15 -0400 |
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committer | Tom Rini <trini@konsulko.com> | 2020-10-29 11:30:15 -0400 |
commit | 47754334b164eae4fde538c406ff3678dfb05042 (patch) | |
tree | 5683d789f5b9b57d0006dbfbb0f7d03782deca10 /board/xilinx/common/board.c | |
parent | cdeb7b8f984e6d9bcdc5a6fdda6107af156d47bf (diff) | |
parent | 908daf86f96a44176ecd1e04f1ec71e143aa45f5 (diff) | |
download | u-boot-47754334b164eae4fde538c406ff3678dfb05042.zip u-boot-47754334b164eae4fde538c406ff3678dfb05042.tar.gz u-boot-47754334b164eae4fde538c406ff3678dfb05042.tar.bz2 |
Merge tag 'xilinx-for-v2021.01-v2' of https://gitlab.denx.de/u-boot/custodians/u-boot-microblaze
Xilinx changes for v2021.01-v2
common:
- Add support for 64bit loadables from SPL
xilinx:
- Update documentation and record ownership
- Enable eeprom board detection based legacy and fru formats
- Add support for FRU format
microblaze:
- Optimize low level ASM code
- Enable SPI/I2C
- Enable distro boot
zynq:
- Add support for Zturn V5
zynqmp:
- Improve silicon detection code
- Enable several kconfig options
- Align DT with the latest state
- Enabling security commands
- Enable and support FPGA loading from SPL
- Optimize xilinx_pm_request() calling
versal:
- Some DTs/Kconfig/defconfig alignments
- Add binding header for clock and power
zynq-sdhci:
- Add support for tap delay programming
zynq-spi/zynq-qspi:
- Use clock framework for getting clocks
xilinx-spi:
- Fix some code issues (unused variables)
serial:
- Check return value from clock functions in pl01x
Diffstat (limited to 'board/xilinx/common/board.c')
-rw-r--r-- | board/xilinx/common/board.c | 347 |
1 files changed, 345 insertions, 2 deletions
diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index b0f60c4..cdc06a3 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * (C) Copyright 2014 - 2019 Xilinx, Inc. + * (C) Copyright 2014 - 2020 Xilinx, Inc. * Michal Simek <michal.simek@xilinx.com> */ @@ -11,7 +11,14 @@ #include <dm/uclass.h> #include <i2c.h> #include <linux/sizes.h> +#include <malloc.h> #include "board.h" +#include <dm.h> +#include <i2c_eeprom.h> +#include <net.h> +#include <generated/dt.h> + +#include "fru.h" #if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET) int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) @@ -41,6 +48,277 @@ int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) } #endif +#define EEPROM_HEADER_MAGIC 0xdaaddeed +#define EEPROM_HDR_MANUFACTURER_LEN 16 +#define EEPROM_HDR_NAME_LEN 16 +#define EEPROM_HDR_REV_LEN 8 +#define EEPROM_HDR_SERIAL_LEN 20 +#define EEPROM_HDR_NO_OF_MAC_ADDR 4 +#define EEPROM_HDR_ETH_ALEN ETH_ALEN + +struct xilinx_board_description { + u32 header; + char manufacturer[EEPROM_HDR_MANUFACTURER_LEN + 1]; + char name[EEPROM_HDR_NAME_LEN + 1]; + char revision[EEPROM_HDR_REV_LEN + 1]; + char serial[EEPROM_HDR_SERIAL_LEN + 1]; + u8 mac_addr[EEPROM_HDR_NO_OF_MAC_ADDR][EEPROM_HDR_ETH_ALEN + 1]; +}; + +static int highest_id = -1; +static struct xilinx_board_description **board_info; + +#define XILINX_I2C_DETECTION_BITS sizeof(struct fru_common_hdr) + +/* Variable which stores pointer to array which stores eeprom content */ +struct xilinx_legacy_format { + char board_sn[18]; /* 0x0 */ + char unused0[14]; /* 0x12 */ + char eth_mac[6]; /* 0x20 */ + char unused1[170]; /* 0x26 */ + char board_name[11]; /* 0xd0 */ + char unused2[5]; /* 0xdc */ + char board_revision[3]; /* 0xe0 */ + char unused3[29]; /* 0xe3 */ +}; + +static void xilinx_eeprom_legacy_cleanup(char *eeprom, int size) +{ + int i; + char byte; + + for (i = 0; i < size; i++) { + byte = eeprom[i]; + + /* Remove all ffs and spaces */ + if (byte == 0xff || byte == ' ') + eeprom[i] = 0; + + /* Convert strings to lower case */ + if (byte >= 'A' && byte <= 'Z') + eeprom[i] = byte + 'a' - 'A'; + } +} + +static int xilinx_read_eeprom_legacy(struct udevice *dev, char *name, + struct xilinx_board_description *desc) +{ + int ret, size; + struct xilinx_legacy_format *eeprom_content; + bool eth_valid = false; + + size = sizeof(*eeprom_content); + + eeprom_content = calloc(1, size); + if (!eeprom_content) + return -ENOMEM; + + debug("%s: I2C EEPROM read pass data at %p\n", __func__, + eeprom_content); + + ret = dm_i2c_read(dev, 0, (uchar *)eeprom_content, size); + if (ret) { + debug("%s: I2C EEPROM read failed\n", __func__); + free(eeprom_content); + return ret; + } + + xilinx_eeprom_legacy_cleanup((char *)eeprom_content, size); + + printf("Xilinx I2C Legacy format at %s:\n", name); + printf(" Board name:\t%s\n", eeprom_content->board_name); + printf(" Board rev:\t%s\n", eeprom_content->board_revision); + printf(" Board SN:\t%s\n", eeprom_content->board_sn); + + eth_valid = is_valid_ethaddr((const u8 *)eeprom_content->eth_mac); + if (eth_valid) + printf(" Ethernet mac:\t%pM\n", eeprom_content->eth_mac); + + /* Terminating \0 chars ensure end of string */ + strcpy(desc->name, eeprom_content->board_name); + strcpy(desc->revision, eeprom_content->board_revision); + strcpy(desc->serial, eeprom_content->board_sn); + if (eth_valid) + memcpy(desc->mac_addr[0], eeprom_content->eth_mac, ETH_ALEN); + + desc->header = EEPROM_HEADER_MAGIC; + + free(eeprom_content); + + return ret; +} + +static bool xilinx_detect_legacy(u8 *buffer) +{ + int i; + char c; + + for (i = 0; i < XILINX_I2C_DETECTION_BITS; i++) { + c = buffer[i]; + + if (c < '0' || c > '9') + return false; + } + + return true; +} + +static int xilinx_read_eeprom_fru(struct udevice *dev, char *name, + struct xilinx_board_description *desc) +{ + int ret, eeprom_size; + u8 *fru_content; + + /* FIXME this is shortcut - if eeprom type is wrong it will fail */ + eeprom_size = i2c_eeprom_size(dev); + + fru_content = calloc(1, eeprom_size); + if (!fru_content) + return -ENOMEM; + + debug("%s: I2C EEPROM read pass data at %p\n", __func__, + fru_content); + + ret = dm_i2c_read(dev, 0, (uchar *)fru_content, + eeprom_size); + if (ret) { + debug("%s: I2C EEPROM read failed\n", __func__); + free(fru_content); + return ret; + } + + printf("Xilinx I2C FRU format at %s:\n", name); + fru_capture((unsigned long)fru_content); + ret = fru_display(0); + if (ret) { + printf("FRU format decoding failed.\n"); + return ret; + } + + if (desc->header == EEPROM_HEADER_MAGIC) { + debug("Information already filled\n"); + return -EINVAL; + } + + /* It is clear that FRU was captured and structures were filled */ + strncpy(desc->manufacturer, (char *)fru_data.brd.manufacturer_name, + sizeof(desc->manufacturer)); + strncpy(desc->name, (char *)fru_data.brd.product_name, + sizeof(desc->name)); + strncpy(desc->revision, (char *)fru_data.brd.rev, + sizeof(desc->revision)); + strncpy(desc->serial, (char *)fru_data.brd.serial_number, + sizeof(desc->serial)); + desc->header = EEPROM_HEADER_MAGIC; + + return 0; +} + +static bool xilinx_detect_fru(u8 *buffer) +{ + u8 checksum = 0; + int i; + + checksum = fru_checksum((u8 *)buffer, sizeof(struct fru_common_hdr)); + if (checksum) { + debug("%s Common header CRC FAIL\n", __func__); + return false; + } + + bool all_zeros = true; + /* Checksum over all zeros is also zero that's why detect this case */ + for (i = 0; i < sizeof(struct fru_common_hdr); i++) { + if (buffer[i] != 0) + all_zeros = false; + } + + if (all_zeros) + return false; + + debug("%s Common header CRC PASS\n", __func__); + return true; +} + +static int xilinx_read_eeprom_single(char *name, + struct xilinx_board_description *desc) +{ + int ret; + struct udevice *dev; + ofnode eeprom; + u8 buffer[XILINX_I2C_DETECTION_BITS]; + + eeprom = ofnode_get_aliases_node(name); + if (!ofnode_valid(eeprom)) + return -ENODEV; + + ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev); + if (ret) + return ret; + + ret = dm_i2c_read(dev, 0, buffer, sizeof(buffer)); + if (ret) { + debug("%s: I2C EEPROM read failed\n", __func__); + return ret; + } + + debug("%s: i2c memory detected: %s\n", __func__, name); + + if (CONFIG_IS_ENABLED(CMD_FRU) && xilinx_detect_fru(buffer)) + return xilinx_read_eeprom_fru(dev, name, desc); + + if (xilinx_detect_legacy(buffer)) + return xilinx_read_eeprom_legacy(dev, name, desc); + + return -ENODEV; +} + +__maybe_unused int xilinx_read_eeprom(void) +{ + int id, ret; + char name_buf[8]; /* 8 bytes should be enough for nvmem+number */ + struct xilinx_board_description *desc; + + highest_id = dev_read_alias_highest_id("nvmem"); + /* No nvmem aliases present */ + if (highest_id < 0) + return -EINVAL; + + board_info = calloc(1, sizeof(desc) * highest_id); + if (!board_info) + return -ENOMEM; + + debug("%s: Highest ID %d, board_info %p\n", __func__, + highest_id, board_info); + + for (id = 0; id <= highest_id; id++) { + snprintf(name_buf, sizeof(name_buf), "nvmem%d", id); + + /* Alloc structure */ + desc = board_info[id]; + if (!desc) { + desc = calloc(1, sizeof(*desc)); + if (!desc) + return -ENOMEM; + + board_info[id] = desc; + } + + /* Ignoring return value for supporting multiple chips */ + ret = xilinx_read_eeprom_single(name_buf, desc); + if (ret) { + free(desc); + board_info[id] = NULL; + } + } + + /* + * Consider to clean board_info structure when board/cards are not + * detected. + */ + + return 0; +} + #if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE) void *board_fdt_blob_setup(void) { @@ -75,12 +353,36 @@ void *board_fdt_blob_setup(void) } #endif +#if defined(CONFIG_BOARD_LATE_INIT) +static int env_set_by_index(const char *name, int index, char *data) +{ + char var[32]; + + if (!index) + sprintf(var, "board_%s", name); + else + sprintf(var, "card%d_%s", index, name); + + return env_set(var, data); +} + int board_late_init_xilinx(void) { u32 ret = 0; + int i, id, macid = 0; + struct xilinx_board_description *desc; phys_size_t bootm_size = gd->ram_size; + struct bd_info *bd = gd->bd; + + if (!CONFIG_IS_ENABLED(MICROBLAZE) && bd->bi_dram[0].start) { + ulong scriptaddr; - if (CONFIG_IS_ENABLED(ARCH_ZYNQ)) + scriptaddr = env_get_hex("scriptaddr", 0); + ret |= env_set_hex("scriptaddr", + bd->bi_dram[0].start + scriptaddr); + } + + if (CONFIG_IS_ENABLED(ARCH_ZYNQ) || CONFIG_IS_ENABLED(MICROBLAZE)) bootm_size = min(bootm_size, (phys_size_t)(SZ_512M + SZ_256M)); ret |= env_set_hex("script_offset_f", CONFIG_BOOT_SCRIPT_OFFSET); @@ -88,8 +390,49 @@ int board_late_init_xilinx(void) ret |= env_set_addr("bootm_low", (void *)gd->ram_base); ret |= env_set_addr("bootm_size", (void *)bootm_size); + for (id = 0; id <= highest_id; id++) { + desc = board_info[id]; + if (desc && desc->header == EEPROM_HEADER_MAGIC) { + if (desc->manufacturer[0]) + ret |= env_set_by_index("manufacturer", id, + desc->manufacturer); + if (desc->name[0]) + ret |= env_set_by_index("name", id, + desc->name); + if (desc->revision[0]) + ret |= env_set_by_index("rev", id, + desc->revision); + if (desc->serial[0]) + ret |= env_set_by_index("serial", id, + desc->serial); + + if (!CONFIG_IS_ENABLED(NET)) + continue; + + for (i = 0; i < EEPROM_HDR_NO_OF_MAC_ADDR; i++) { + if (!desc->mac_addr[i]) + continue; + + if (is_valid_ethaddr((const u8 *)desc->mac_addr[i])) + ret |= eth_env_set_enetaddr_by_index("eth", + macid++, desc->mac_addr[i]); + } + } + } + if (ret) printf("%s: Saving run time variables FAILED\n", __func__); return 0; } +#endif + +int __maybe_unused board_fit_config_name_match(const char *name) +{ + debug("%s: Check %s, default %s\n", __func__, name, DEVICE_TREE); + + if (!strcmp(name, DEVICE_TREE)) + return 0; + + return -1; +} |