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u-boot-2016/board/qca/arm/common/crashdump.c
Linux Build Service Account a6a13af5f4 Merge "board: qca: crashdump: add condition check for size"
2024-03-22 11:40:07 -07:00

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/*
* Copyright (c) 2015-2018, 2020 The Linux Foundation. All rights reserved.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <common.h>
#include <mmc.h>
#include <nand.h>
#include <spi.h>
#include <spi_flash.h>
#include <usb.h>
#include <fat.h>
#include <asm/errno.h>
#include <asm/io.h>
#include <asm/arch-qca-common/scm.h>
#include <asm/arch-qca-common/iomap.h>
#include <asm/arch-qca-common/qca_common.h>
#define MAX_TFTP_SIZE 0x40000000
#define MAX_SEARCH_PARTITIONS 16
#define MAX_UNAME_SIZE 1024
#define QCA_WDT_SCM_TLV_TYPE_SIZE 1
#define QCA_WDT_SCM_TLV_LEN_SIZE 2
#define QCA_WDT_SCM_TLV_TYPE_LEN_SIZE (QCA_WDT_SCM_TLV_TYPE_SIZE +\
QCA_WDT_SCM_TLV_LEN_SIZE)
#define MAX_NAND_PAGE_SIZE 4096
#define MAX_EMMC_BLK_LEN 1024
#ifndef CONFIG_CRASHDUMP_SPI_SPEED
#define CONFIG_CRASHDUMP_SPI_SPEED 1000000
#endif
#ifndef CONFIG_CRASHDUMP_SPI_MODE
#define CONFIG_CRASHDUMP_SPI_MODE SPI_MODE_3
#endif
#ifndef CONFIG_SYS_MMC_CRASHDUMP_DEV
#define CONFIG_SYS_MMC_CRASHDUMP_DEV 0
#endif
#define MINIDUMP_MAGIC1_COOKIE 0x4D494E49
#define MINIDUMP_MAGIC2_COOKIE 0x44554D50
#define DEFAULT_MINIDUMP_LIST_ENTRY_MAX 256
#define MINIDUMP_LIST_ENTRY_INC_ORDER 128
#define CONFIG_TZ_SIZE 0x400000
DECLARE_GLOBAL_DATA_PTR;
static qca_smem_flash_info_t *sfi = &qca_smem_flash_info;
/* USB device id and part index used by usbdump */
static int usb_dev_indx, usb_dev_part;
int crashdump_tlv_count=0;
char *dump_prefix = "";
enum {
/*Basic DDR segments */
QCA_WDT_LOG_DUMP_TYPE_INVALID,
QCA_WDT_LOG_DUMP_TYPE_UNAME,
QCA_WDT_LOG_DUMP_TYPE_DMESG,
QCA_WDT_LOG_DUMP_TYPE_LEVEL1_PT,
/* Module structures are in highmem zone*/
QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD,
QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD_DEBUGFS,
QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD_INFO,
QCA_WDT_LOG_DUMP_TYPE_WLAN_MMU_INFO,
QCA_WDT_LOG_DUMP_TYPE_EMPTY,
};
/* This will be used for parsing the TLV data */
struct qca_wdt_scm_tlv_msg {
unsigned char *msg_buffer;
unsigned char *cur_msg_buffer_pos;
unsigned int len;
};
/* Structure to hold crashdump related pointers */
struct st_tlv_info {
uint64_t start;
uint64_t size;
};
/* Actual crashdump related data */
struct qca_wdt_crashdump_data {
unsigned char uname[MAX_UNAME_SIZE];
unsigned int uname_length;
unsigned char *cpu_context;
unsigned char *log_buf;
unsigned int log_buf_len;
unsigned char *pt_start;
unsigned int pt_len;
};
/* Context for NAND Flash memory */
struct crashdump_flash_nand_cxt {
loff_t start_crashdump_offset;
loff_t cur_crashdump_offset;
int cur_page_data_len;
int write_size;
unsigned char temp_data[MAX_NAND_PAGE_SIZE];
uint32_t part_start;
uint32_t part_size;
};
#ifdef CONFIG_QCA_SPI
/* Context for SPI NOR Flash memory */
struct crashdump_flash_spi_cxt {
loff_t start_crashdump_offset;
loff_t cur_crashdump_offset;
};
#endif
#ifdef CONFIG_QCA_MMC
/* Context for EMMC Flash memory */
struct crashdump_flash_emmc_cxt {
loff_t start_crashdump_offset;
loff_t cur_crashdump_offset;
int cur_blk_data_len;
int write_size;
unsigned char temp_data[MAX_EMMC_BLK_LEN];
};
#endif
struct memdumps_list_info {
char name[20];
uint64_t offset;
uint64_t size;
};
struct memdump_hdr {
uint32_t magic1;
uint32_t magic2;
uint32_t nos_dumps;
uint32_t total_dump_sz;
uint64_t dumps_list_info_offset;
uint32_t reserved[2];
};
struct dump2nvmem_config {
int flash_type;
uint32_t offset;
uint32_t dump_off;
uint32_t size;
uint32_t blksize;
};
void *crashdump_cnxt;
int (*crashdump_flash_write)(void *cnxt, unsigned char *data, unsigned int size);
int (*crashdump_flash_write_init)(void *cnxt, loff_t offset, unsigned int total_size);
int (*crashdump_flash_write_deinit)(void *cnxt);
#ifdef CONFIG_MTD_DEVICE
static struct crashdump_flash_nand_cxt crashdump_nand_cnxt;
#endif
#ifdef CONFIG_QCA_SPI
static struct spi_flash *crashdump_spi_flash;
static struct crashdump_flash_spi_cxt crashdump_flash_spi_cnxt;
#endif
#ifdef CONFIG_QCA_MMC
static struct mmc *mmc;
static struct crashdump_flash_emmc_cxt crashdump_emmc_cnxt;
#endif
static struct qca_wdt_crashdump_data g_crashdump_data;
struct qca_wdt_scm_tlv_msg tlv_msg ;
static ulong dump2mem_addr_curr = 0, dump2mem_addr = 0, dump2mem_addr_limit =0;
static uint32_t dumplist_entrymax = DEFAULT_MINIDUMP_LIST_ENTRY_MAX;
static struct memdump_hdr dump2mem_hdr;
static struct dump2nvmem_config dump2nvmem_info;
static struct memdumps_list_info *dumps_list = NULL;
__weak int scm_set_boot_addr(bool enable_sec_core)
{
return -1;
}
__weak void crashdump_exit(void)
{
#ifdef CONFIG_SKIP_RESET
run_command("bootipq", 0);
#else
reset_board();
#endif
}
static int krait_release_secondary(void)
{
writel(0xa4, CPU1_APCS_SAW2_VCTL);
barrier();
udelay(512);
writel(0x109, CPU1_APCS_CPU_PWR_CTL);
writel(0x101, CPU1_APCS_CPU_PWR_CTL);
barrier();
udelay(1);
writel(0x121, CPU1_APCS_CPU_PWR_CTL);
barrier();
udelay(2);
writel(0x120, CPU1_APCS_CPU_PWR_CTL);
barrier();
udelay(2);
writel(0x100, CPU1_APCS_CPU_PWR_CTL);
barrier();
udelay(100);
writel(0x180, CPU1_APCS_CPU_PWR_CTL);
barrier();
return 0;
}
static int dump_to_dst (int is_aligned_access, uint32_t memaddr, uint32_t size, char *name,
unsigned int dump_level)
{
char runcmd[256];
char *usb_dump = NULL, *dump2mem = NULL, *dump2nvmem = NULL;
ulong is_usb_dump = 0;
int ret = 0;
if (!size) {
printf("Skipping %s dump, due to size zero\n", name);
return CMD_RET_SUCCESS;
}
dump2nvmem = getenv("dump_to_nvmem");
dump2mem = getenv("dump_to_mem");
usb_dump = getenv("dump_to_usb");
if (usb_dump) {
ret = str2long(usb_dump, &is_usb_dump);
if (!ret) {
printf("\nError: Failed to decode dump_to_usb value\n");
return -EINVAL;
}
}
if (is_aligned_access) {
if (IPQ_TEMP_DUMP_ADDR) {
snprintf(runcmd, sizeof(runcmd), "cp.l 0x%x 0x%x 0x%x", memaddr,
IPQ_TEMP_DUMP_ADDR, size / 4);
if (run_command(runcmd, 0) != CMD_RET_SUCCESS)
return CMD_RET_FAILURE;
memaddr = IPQ_TEMP_DUMP_ADDR;
} else {
printf("%s needs aligned access and temp address is not defined. Skipping...", name);
return CMD_RET_FAILURE;
}
}
if (is_usb_dump == 1)
snprintf(runcmd, sizeof(runcmd), "fatwrite usb %x:%x 0x%x %s 0x%x",
usb_dev_indx, usb_dev_part, memaddr, name, size);
else if (dump2mem && (dump_level == MINIMAL_DUMP)) {
int idx = dump2mem_hdr.nos_dumps++;
if (idx >= dumplist_entrymax) {
dumplist_entrymax += MINIDUMP_LIST_ENTRY_INC_ORDER;
dumps_list = realloc(dumps_list,
dumplist_entrymax * sizeof(struct memdumps_list_info));
if (!dumps_list) {
printf("failed to do realloc the minidumps list entry table\n");
return CMD_RET_FAILURE;
}
}
strlcpy(dumps_list[idx].name, name, sizeof(dumps_list[idx].name));
dumps_list[idx].offset = dump2mem_addr_curr - dump2mem_addr;
dumps_list[idx].size = size;
snprintf(runcmd, sizeof(runcmd), "cp.l 0x%x 0x%lx 0x%x",
memaddr, dump2mem_addr_curr, size);
if (roundup(dump2mem_addr_curr + size, ARCH_DMA_MINALIGN) > dump2mem_addr_limit) {
printf("Error: Not enough memory in rsvd mem to save dumps\n");
return CMD_RET_FAILURE;
}
printf("Dumping %s @ 0x%lX \n", dumps_list[idx].name, dump2mem_addr_curr);
dump2mem_addr_curr = roundup(dump2mem_addr_curr + size, ARCH_DMA_MINALIGN);
} else if (dump2nvmem && (dump_level == MINIMAL_DUMP)) {
int idx = dump2mem_hdr.nos_dumps++;
if (idx >= dumplist_entrymax) {
dumplist_entrymax += MINIDUMP_LIST_ENTRY_INC_ORDER;
dumps_list = realloc(dumps_list,
dumplist_entrymax * sizeof(struct memdumps_list_info));
if (!dumps_list) {
printf("failed to do realloc the minidumps list entry table\n");
return CMD_RET_FAILURE;
}
}
strlcpy(dumps_list[idx].name, name, sizeof(dumps_list[idx].name));
dumps_list[idx].offset = dump2mem_addr_curr;
dumps_list[idx].size = size;
if (dump2mem_addr_curr + size > dump2nvmem_info.size) {
printf("Error: Not enough memory in %s partition to save dumps\n", dump2nvmem);
return CMD_RET_FAILURE;
}
ret = crashdump_flash_write(crashdump_cnxt, (unsigned char *)memaddr, size);
if (ret)
return ret;
printf("Writing %s in %s @ offset 0x%lx\n", dumps_list[idx].name,
dump2nvmem, dump2mem_addr_curr);
dump2mem_addr_curr += size;
return CMD_RET_SUCCESS;
} else {
char *dumpdir;
dumpdir = getenv("dumpdir");
if (dumpdir != NULL) {
printf("Using directory %s in TFTP server\n", dumpdir);
} else {
dumpdir = "";
printf("Env 'dumpdir' not set. Using / dir in TFTP server\n");
}
snprintf(runcmd, sizeof(runcmd), "tftpput 0x%x 0x%x %s/%s",
memaddr, size, dumpdir, name);
}
if (run_command(runcmd, 0) != CMD_RET_SUCCESS)
return CMD_RET_FAILURE;
return CMD_RET_SUCCESS;
}
/* Extracts the type and length in TLV for current offset */
static int qca_wdt_scm_extract_tlv_info(
struct qca_wdt_scm_tlv_msg *scm_tlv_msg,
unsigned char *type,
unsigned int *size)
{
unsigned char *x = scm_tlv_msg->cur_msg_buffer_pos;
unsigned char *y = scm_tlv_msg->msg_buffer +
scm_tlv_msg->len;
if ((x + QCA_WDT_SCM_TLV_TYPE_LEN_SIZE) >= y)
return -EINVAL;
*type = x[0];
*size = x[1] | (x[2] << 8);
return 0;
}
/* Extracts the value from TLV for current offset */
static int qca_wdt_scm_extract_tlv_data(
struct qca_wdt_scm_tlv_msg *scm_tlv_msg,
unsigned char *data,
unsigned int size)
{
unsigned char *x = scm_tlv_msg->cur_msg_buffer_pos;
unsigned char *y = scm_tlv_msg->msg_buffer + scm_tlv_msg->len;
if ((x + QCA_WDT_SCM_TLV_TYPE_LEN_SIZE + size) >= y)
return -EINVAL;
memcpy(data, x + 3, size);
scm_tlv_msg->cur_msg_buffer_pos +=
(size + QCA_WDT_SCM_TLV_TYPE_LEN_SIZE);
return 0;
}
/*
* This function parses the TLV message and stores the actual values
* in crashdump_data. For each TLV, It first determines the type and
* length, then it extracts the actual value and stores in the appropriate
* field in crashdump_data.
*/
static int qca_wdt_extract_crashdump_data(
struct qca_wdt_scm_tlv_msg *scm_tlv_msg,
struct qca_wdt_crashdump_data *crashdump_data)
{
unsigned char cur_type = QCA_WDT_LOG_DUMP_TYPE_INVALID;
unsigned int cur_size = 0;
int ret_val = 0;
struct st_tlv_info tlv_info;
int static_enum_count = 0;
int tlv_size = 0;
while (static_enum_count < 3) {
ret_val = qca_wdt_scm_extract_tlv_info(scm_tlv_msg,
&cur_type, &cur_size);
if (ret_val)
return ret_val;
switch (cur_type) {
case QCA_WDT_LOG_DUMP_TYPE_UNAME:
crashdump_data->uname_length = cur_size;
ret_val = qca_wdt_scm_extract_tlv_data(scm_tlv_msg,
crashdump_data->uname, cur_size);
crashdump_tlv_count++;
static_enum_count++;
break;
case QCA_WDT_LOG_DUMP_TYPE_DMESG:
ret_val = qca_wdt_scm_extract_tlv_data(scm_tlv_msg,
(unsigned char *)&tlv_info,
cur_size);
if (!ret_val) {
crashdump_data->log_buf =(unsigned char *)(uintptr_t)tlv_info.start;
crashdump_data->log_buf_len = *(uint32_t *)(uintptr_t)tlv_info.size;
}
crashdump_tlv_count++;
static_enum_count++;
break;
case QCA_WDT_LOG_DUMP_TYPE_LEVEL1_PT:
ret_val = qca_wdt_scm_extract_tlv_data(scm_tlv_msg,(unsigned char *)&tlv_info,cur_size);
if (!ret_val) {
crashdump_data->pt_start =(unsigned char *)(uintptr_t)tlv_info.start;
crashdump_data->pt_len = tlv_info.size;
}
crashdump_tlv_count++;
static_enum_count++;
break;
case QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD:
tlv_size = (cur_size + QCA_WDT_SCM_TLV_TYPE_LEN_SIZE);
scm_tlv_msg->cur_msg_buffer_pos += tlv_size;
break;
default:
printf("%s: No valid dump found\n", __func__);
ret_val = -EINVAL;
goto err;
}
}
err:
return ret_val;
}
uint32_t dump_minimal(struct dumpinfo_t *dumpinfo, int indx) {
if (g_crashdump_data.pt_start &&
!strncmp(dumpinfo[indx].name,
"PT.BIN", strlen("PT.BIN"))) {
dumpinfo[indx].start =(uintptr_t) g_crashdump_data.pt_start;
dumpinfo[indx].size = g_crashdump_data.pt_len;
} else if (g_crashdump_data.log_buf &&
!strncmp(dumpinfo[indx].name,
"DMESG.BIN", strlen("DMESG.BIN"))) {
dumpinfo[indx].start =(uintptr_t) g_crashdump_data.log_buf;
dumpinfo[indx].size = g_crashdump_data.log_buf_len;
} else if (!strncmp(dumpinfo[indx].name,
"UNAME", strlen("UNAME"))) {
dumpinfo[indx].start =(uintptr_t) g_crashdump_data.uname;
dumpinfo[indx].size =
g_crashdump_data.uname_length;
} else if (!strncmp(dumpinfo[indx].name,
"CPU_INFO", strlen("CPU_INFO"))) {
dumpinfo[indx].start =
(uintptr_t)g_crashdump_data.cpu_context;
dumpinfo[indx].size =
CONFIG_CPU_CONTEXT_DUMP_SIZE;
}
return dumpinfo[indx].start;
}
static int dump_wlan_segments(struct dumpinfo_t *dumpinfo, int indx)
{
uint32_t memaddr;
struct qca_wdt_scm_tlv_msg *scm_tlv_msg = &tlv_msg;
unsigned char cur_type = QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD;
unsigned int cur_size = 0;
int ret_val = 0;
int tlv_size = 0;
struct st_tlv_info tlv_info;
uint32_t wlan_tlv_size;
char wlan_segment_name[32];
if(strncmp(dumpinfo[indx].name, "WLAN_MOD" ,strlen("WLAN_MOD"))) {
return CMD_RET_FAILURE;
}
scm_tlv_msg->cur_msg_buffer_pos = scm_tlv_msg->msg_buffer;
do {
ret_val = qca_wdt_scm_extract_tlv_info(scm_tlv_msg,
&cur_type, &cur_size);
/* Each Dump segment is represented by a TLV representing
the type,size and physical addresses of the dump segments.
QCA_WDT_LOG_DUMP_TYPE_EMPTY type indicates that the TLV has
been invalidated. When type QCA_WDT_LOG_DUMP_TYPE_EMPTY is encountered,
we skip over the TLV by moving the current message buffer pointer
ahead by one TLV */
if(cur_type == QCA_WDT_LOG_DUMP_TYPE_EMPTY) {
tlv_size = (cur_size + QCA_WDT_SCM_TLV_TYPE_LEN_SIZE);
scm_tlv_msg->cur_msg_buffer_pos += tlv_size;
}
/* While iterating over the crashdump buffer, if MetaData file
* TLV types are found (QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD_INFO or
* QCA_WDT_LOG_DUMP_TYPE_WLAN_MMU_INFO), we dump the segment with
* name "MOD_INFO.txt"/"MMU_INFO.txt". If DEBUFGS TLV type is found
* we prefix the Dump binary with “DEBUGFS_” which is useful in
* post processing step. If we encounter a QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD
* TLV type, we dump the binary with name equal to the physical address
* of the binary.
*/
if (!ret_val && ( cur_type == QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD ||
cur_type == QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD_INFO ||
cur_type == QCA_WDT_LOG_DUMP_TYPE_WLAN_MMU_INFO ||
cur_type == QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD_DEBUGFS )) {
ret_val = qca_wdt_scm_extract_tlv_data(scm_tlv_msg,
(unsigned char *)&tlv_info,cur_size);
memaddr = tlv_info.start;
if (cur_type == QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD_INFO) {
snprintf(wlan_segment_name, sizeof(wlan_segment_name),
"MOD_INFO.txt");
wlan_tlv_size = *(uint32_t *)(uintptr_t)tlv_info.size;
} else if (cur_type == QCA_WDT_LOG_DUMP_TYPE_WLAN_MMU_INFO) {
snprintf(wlan_segment_name, sizeof(wlan_segment_name),
"MMU_INFO.txt");
wlan_tlv_size = *(uint32_t *)(uintptr_t)tlv_info.size;
} else if (cur_type == QCA_WDT_LOG_DUMP_TYPE_WLAN_MOD_DEBUGFS) {
snprintf(wlan_segment_name, sizeof(wlan_segment_name),
"DEBUGFS_%lx.BIN",(long unsigned int)memaddr);
wlan_tlv_size = tlv_info.size;
} else {
snprintf(wlan_segment_name,
sizeof(wlan_segment_name), "%lx.BIN",(long unsigned int)memaddr);
wlan_tlv_size = tlv_info.size;
}
ret_val = dump_to_dst (dumpinfo[indx].is_aligned_access,memaddr,
wlan_tlv_size, wlan_segment_name, dumpinfo[indx].dump_level);
crashdump_tlv_count++;
udelay(10000); /* give some delay for server */
if (ret_val == CMD_RET_FAILURE)
return CMD_RET_FAILURE;
} else {
tlv_size = (cur_size + QCA_WDT_SCM_TLV_TYPE_LEN_SIZE);
scm_tlv_msg->cur_msg_buffer_pos += tlv_size;
}
}while (cur_type != QCA_WDT_LOG_DUMP_TYPE_INVALID);
printf("\nMinidump: Dumped %d TLVs\n",crashdump_tlv_count);
return CMD_RET_SUCCESS;
};
int is_length_valid(struct dumpinfo_t *dumpinfo, int dump_entries)
{
int indx = 0;
int ret = 0;
for (indx = 0; indx < dump_entries; indx++) {
/* max size of name allocated in dumpinfo struct is 256 */
if ((strlen(dump_prefix) + strlen(dumpinfo[indx].name) + 1) > 256)
ret = 1;
}
return ret;
}
void add_prefix(struct dumpinfo_t *dumpinfo, int dump_entries)
{
int indx = 0;
char temp[256];
if (is_length_valid(dumpinfo, dump_entries)) {
printf("WARN: Prefix length exceeds size, removing prefix for dumpfiles");
dump_prefix = "";
}
for (indx = 0; indx < dump_entries; indx++) {
snprintf(temp, sizeof(temp), "%s%s", dump_prefix, dumpinfo[indx].name);
strlcpy(dumpinfo[indx].name, temp, strlen(temp)+1);
}
}
static int do_dumpqca_data(unsigned int dump_level)
{
uint32_t memaddr, comp_addr = 0x0;
uint32_t remaining;
int indx;
int ebi_indx = 0;
int ret = CMD_RET_FAILURE;
#if defined(CONFIG_IPQ5018) && !defined(CONFIG_DISABLE_SIGNED_BOOT)
char buf = 1;
#endif
struct dumpinfo_t *dumpinfo = dumpinfo_n;
int dump_entries = dump_entries_n;
char wlan_segment_name[32], runcmd[128], *s;
char *usb_dump = NULL, *compress = NULL;
char *dump2mem = NULL, *dump2mem_addr_s = NULL, *dump2mem_sz_s = NULL;
char *dump2nvmem = NULL;
ulong is_usb_dump = 0, is_compress = 0, dump2mem_sz = 0;
char temp[256];
dump2mem = getenv("dump_to_mem");
if (dump2mem && (dump_level == MINIMAL_DUMP)) {
dump2mem_addr_s = strsep(&dump2mem, " ");
if (!dump2mem_addr_s ||
!str2long(dump2mem_addr_s, &dump2mem_addr)) {
printf("\nError: Failed to decode dump_to_mem addr\n");
return -EINVAL;
}
dump2mem_sz_s = strsep(&dump2mem, " ");
if (!dump2mem_sz_s ||
!str2long(dump2mem_sz_s, &dump2mem_sz)) {
printf("\nError: Failed to decode dump_to_mem size\n");
return -EINVAL;
}
/* range check for the dump2mem_addr */
if ((dump2mem_addr < CONFIG_SYS_SDRAM_BASE) ||
(dump2mem_addr > CONFIG_SYS_SDRAM_BASE
+ gd->ram_size - dump2mem_sz)) {
printf("\nError: Invalid dump_to_mem param\n");
return -EINVAL;
}
dump2mem_addr_curr = dump2mem_addr;
dump2mem_hdr.magic1 = MINIDUMP_MAGIC1_COOKIE;
dump2mem_hdr.magic2 = MINIDUMP_MAGIC2_COOKIE;
dump2mem_hdr.nos_dumps = 0;
dump2mem_hdr.total_dump_sz = 0;
dump2mem_hdr.dumps_list_info_offset = 0;
dumps_list = malloc(dumplist_entrymax * sizeof(struct memdumps_list_info));
dump2mem_addr_limit = dump2mem_addr + dump2mem_sz;
dump2mem_addr_curr = roundup(dump2mem_addr_curr +
sizeof(struct memdump_hdr), ARCH_DMA_MINALIGN);
}
dump2nvmem = getenv("dump_to_nvmem");
if (dump2nvmem && (dump_level == MINIMAL_DUMP)) {
snprintf(runcmd, sizeof(runcmd), "flasherase %s", dump2nvmem);
ret = run_command(runcmd, 0);
if (ret)
return ret;
dump2mem_addr = dump2nvmem_info.offset;
dump2mem_hdr.magic1 = MINIDUMP_MAGIC1_COOKIE;
dump2mem_hdr.magic2 = MINIDUMP_MAGIC2_COOKIE;
dump2mem_hdr.nos_dumps = 0;
dump2mem_hdr.total_dump_sz = 0;
dump2mem_hdr.dumps_list_info_offset = 0;
dumps_list = malloc(dumplist_entrymax * sizeof(struct memdumps_list_info));
dump2mem_addr_curr = dump2nvmem_info.blksize;
ret = crashdump_flash_write_init(crashdump_cnxt,
dump2nvmem_info.offset + dump2nvmem_info.dump_off, 0);
if (ret)
return ret;
}
usb_dump = getenv("dump_to_usb");
if (usb_dump) {
ret = str2long(usb_dump, &is_usb_dump);
if (!ret) {
printf("\nError: Failed to decode dump_to_usb value\n");
return -EINVAL;
}
}
if (is_usb_dump != 1) {
char *serverip = NULL;
/* dump to root of TFTP server if none specified */
serverip = getenv("serverip");
if (serverip != NULL) {
printf("Using serverip from env %s\n", serverip);
} else {
printf("\nServer ip not found, run dhcp or configure\n");
return CMD_RET_FAILURE;
}
}
else {
#if defined(CONFIG_USB_STORAGE) && defined(CONFIG_FS_FAT)
static block_dev_desc_t *stor_dev;
disk_partition_t info;
int dev_indx, max_dev_avail = 0;
int part_indx = 0, part = -1;
int fat_fs = 0;
char dev_str[5]; /* dev:part */
if(run_command("usb start", 0) != CMD_RET_SUCCESS) {
printf("USB enumeration failed\n");
return CMD_RET_FAILURE;
}
max_dev_avail = usb_max_dev_avail();
for(dev_indx = 0; (fat_fs != 1) && (dev_indx < max_dev_avail); dev_indx++) {
// get storage device
stor_dev = usb_stor_get_dev(dev_indx);
if(stor_dev == NULL) {
printf("No storage device available\n");
goto stop_dump;
}
// get valid partition
for(part_indx = 1; part_indx <= MAX_SEARCH_PARTITIONS; part_indx++) {
snprintf(dev_str, sizeof(dev_str)+1, "%x:%x", dev_indx, part_indx);
part = get_device_and_partition("usb", dev_str, &stor_dev, &info, 1);
if (fat_set_blk_dev(stor_dev, &info) == 0) {
fat_fs = 1;
printf("Selected Device for USBdump:\n");
dev_print(stor_dev);
break;
}
}
if (part < 0)
printf("No valid partition available for device %d\n", dev_indx);
}
if (fat_fs == 1)
dev_indx = dev_indx - 1;
if (dev_indx == max_dev_avail) {
printf("No devices available for usbdump collection\n");
goto stop_dump;
}
usb_dev_indx = dev_indx;
usb_dev_part = part_indx;
printf("Collecting crashdump on Partition %d of USB device %d\n", usb_dev_part, usb_dev_indx);
#else
printf("\nWarning: Enable FAT FS configs for USBdump\n");
#endif
}
#if defined(CONFIG_IPQ5018) && !defined(CONFIG_DISABLE_SIGNED_BOOT)
ret = qca_scm_call(SCM_SVC_FUSE,
QFPROM_IS_AUTHENTICATE_CMD, &buf, sizeof(char));
if (ret == 0 && buf == 1) {
dumpinfo = dumpinfo_s;
dump_entries = dump_entries_s;
}
#endif
dump_prefix = getenv("dump_prefix");
if (dump_prefix != NULL)
add_prefix(dumpinfo, dump_entries);
else
dump_prefix = "";
if (scm_set_boot_addr(false) == 0) {
/* Pull Core-1 out of reset, iff scm call succeeds */
krait_release_secondary();
}
for (indx = 0; indx < dump_entries; indx++) {
if (dump_level != dumpinfo[indx].dump_level)
continue;
if (dumpinfo[indx].is_redirected) {
memaddr = *((uint32_t *)(dumpinfo[indx].start));
if (!memaddr) {
printf("Crashdump for %s is not available.\n",
dumpinfo[indx].name);
continue;
}
} else {
memaddr = dumpinfo[indx].start;
}
if (dumpinfo[indx].offset)
memaddr += dumpinfo[indx].offset;
snprintf(temp, sizeof(temp), "%sEBICS", dump_prefix);
if (!strncmp(dumpinfo[indx].name, temp, strlen(temp)))
{
compress = getenv("dump_compressed");
if (compress) {
ret = str2long(compress, &is_compress);
if (!ret) {
is_compress = 0;
}
}
if (is_compress == 1) {
snprintf(temp, sizeof(temp), "%sEBICS2", dump_prefix);
if (!strncmp(dumpinfo[indx].name, temp, strlen(temp))) {
memaddr = CONFIG_SYS_SDRAM_BASE + (gd->ram_size / 2);
dumpinfo[indx].size = gd->ram_size / 2;
comp_addr = memaddr;
}
#ifndef CONFIG_DISABLE_SIGNED_BOOT
snprintf(temp, sizeof(temp), "%sEBICS_S2", dump_prefix);
if (!strncmp(dumpinfo[indx].name, temp, strlen(temp))) {
dumpinfo[indx].size = gd->ram_size - (dumpinfo[indx].start - CONFIG_SYS_SDRAM_BASE);
comp_addr = memaddr;
}
#endif
snprintf(temp, sizeof(temp), "%sEBICS1", dump_prefix);
if (!strncmp(dumpinfo[indx].name, temp, strlen(temp))) {
dumpinfo[indx].size = (gd->ram_size / 2)
- (dumpinfo[indx + 1].size + 0x400000);
}
}
else {
snprintf(temp, sizeof(temp), "%sEBICS0", dump_prefix);
if (!strncmp(dumpinfo[indx].name,
temp, strlen(temp)))
dumpinfo[indx].size = gd->ram_size;
#ifndef CONFIG_DISABLE_SIGNED_BOOT
snprintf(temp, sizeof(temp), "%sEBICS_S1", dump_prefix);
if (!strncmp(dumpinfo[indx].name,
temp, strlen(temp)))
dumpinfo[indx].size = gd->ram_size
- dumpinfo[indx - 1].size
- CONFIG_TZ_SIZE;
#endif
}
if (is_compress == 1 && (dumpinfo[indx].to_compress == 1)) {
snprintf(runcmd, sizeof(runcmd), "zip 0x%x 0x%x 0x%x", memaddr, dumpinfo[indx].size, comp_addr);
if (run_command(runcmd, 0) != CMD_RET_SUCCESS)
printf("gzip compression of %s failed\n", dumpinfo[indx].name);
else {
s = getenv("filesize");
dumpinfo[indx].size = (int)simple_strtol(s, NULL, 16); //compressed_file_size
memaddr = comp_addr;
snprintf(dumpinfo[indx].name, sizeof(dumpinfo[indx].name), "%s.gz", dumpinfo[indx].name);
}
}
if ((is_compress == 1 && (dumpinfo[indx].to_compress != 1)) ||
(is_compress != 1 && (dumpinfo[indx].to_compress == 1))) {
continue;
}
if (is_usb_dump == 1 || is_compress == 1) {
printf("\nProcessing %s:\n", dumpinfo[indx].name);
ret = dump_to_dst (dumpinfo[indx].is_aligned_access, memaddr, dumpinfo[indx].size, dumpinfo[indx].name, dumpinfo[indx].dump_level);
if (ret == CMD_RET_FAILURE) {
goto stop_dump;
}
}
else {
remaining = dumpinfo[indx].size;
while (remaining > 0) {
snprintf(dumpinfo[indx].name, sizeof(dumpinfo[indx].name),
"%sEBICS%d.BIN", dump_prefix, ebi_indx);
if (remaining > MAX_TFTP_SIZE) {
dumpinfo[indx].size = MAX_TFTP_SIZE;
}
else {
dumpinfo[indx].size = remaining;
}
printf("\nProcessing %s:\n", dumpinfo[indx].name);
ret = dump_to_dst (dumpinfo[indx].is_aligned_access, memaddr, dumpinfo[indx].size, dumpinfo[indx].name, dumpinfo[indx].dump_level);
if (ret == CMD_RET_FAILURE)
goto stop_dump;
memaddr += dumpinfo[indx].size;
remaining -= dumpinfo[indx].size;
ebi_indx++;
}
}
}
else
{
printf("\nProcessing %s:\n", dumpinfo[indx].name);
if (dumpinfo[indx].dump_level == MINIMAL_DUMP )
memaddr = dump_minimal(dumpinfo, indx);
if (dumpinfo[indx].size && memaddr) {
if(dumpinfo[indx].dump_level == MINIMAL_DUMP){
snprintf(wlan_segment_name, sizeof(wlan_segment_name), "%lx.BIN",(long unsigned int)memaddr);
ret = dump_to_dst (dumpinfo[indx].is_aligned_access, memaddr, dumpinfo[indx].size, wlan_segment_name, dumpinfo[indx].dump_level);
if (ret == CMD_RET_FAILURE)
goto stop_dump;
}
else {
ret = dump_to_dst (dumpinfo[indx].is_aligned_access, memaddr, dumpinfo[indx].size, dumpinfo[indx].name, dumpinfo[indx].dump_level);
if (ret == CMD_RET_FAILURE)
goto stop_dump;
}
}
else {
ret = dump_wlan_segments(dumpinfo, indx);
if (ret == CMD_RET_FAILURE)
goto stop_dump;
}
}
}
stop_dump:
if (getenv("dump_to_mem") && (dump_level == MINIMAL_DUMP)) {
snprintf(runcmd, sizeof(runcmd), "cp.l 0x%x 0x%lx 0x%x",
(unsigned int)dumps_list, dump2mem_addr_curr,
dump2mem_hdr.nos_dumps * sizeof(struct memdumps_list_info));
if (run_command(runcmd, 0) != CMD_RET_SUCCESS) {
printf("failed to dump at the addr 0x%lx\n", dump2mem_addr_curr);
return -EINVAL;
}
free(dumps_list);
dump2mem_hdr.total_dump_sz = dump2mem_addr_curr +
(dump2mem_hdr.nos_dumps * sizeof(struct memdumps_list_info)) - dump2mem_addr;
dump2mem_hdr.dumps_list_info_offset = dump2mem_addr_curr - dump2mem_addr;
if ((dump2mem_addr + dump2mem_hdr.total_dump_sz)
> dump2mem_addr_limit) {
printf("Error: Not enough memory in rsvd mem to save dumps\n");
return CMD_RET_FAILURE;
}
snprintf(runcmd, sizeof(runcmd), "cp.l 0x%x 0x%lx 0x%x",
(unsigned int)&dump2mem_hdr, dump2mem_addr, sizeof(struct memdump_hdr));
if (run_command(runcmd, 0) != CMD_RET_SUCCESS) {
printf("failed to dump at the addr 0x%lx\n", dump2mem_addr);
return -EINVAL;
}
}
if (dump2nvmem && (dump_level == MINIMAL_DUMP)) {
if (ret != CMD_RET_SUCCESS)
return ret;
/* updating dump_list in flash at the end */
ret = crashdump_flash_write(crashdump_cnxt, (unsigned char *)dumps_list,
dump2mem_hdr.nos_dumps * sizeof(struct memdumps_list_info));
if (ret)
return ret;
ret = crashdump_flash_write_deinit(crashdump_cnxt);
if (ret)
return ret;
dump2mem_hdr.total_dump_sz = dump2mem_addr_curr +
(dump2mem_hdr.nos_dumps * sizeof(struct memdumps_list_info));
dump2mem_hdr.dumps_list_info_offset = dump2mem_addr_curr;
if (dump2mem_hdr.total_dump_sz > dump2nvmem_info.size) {
printf("Error: Not enough memory in %s partition to save dumps", dump2nvmem);
return CMD_RET_FAILURE;
}
/* updating memdump_hdr in flash at the first block */
ret = crashdump_flash_write_init(crashdump_cnxt, dump2mem_addr, 0);
if (ret)
return ret;
ret = crashdump_flash_write(crashdump_cnxt, (unsigned char *)&dump2mem_hdr,
sizeof(struct memdump_hdr));
if (ret)
return ret;
ret = crashdump_flash_write_deinit(crashdump_cnxt);
if (ret)
return ret;
}
#if defined(CONFIG_USB_STORAGE) && defined(CONFIG_FS_FAT)
if (is_usb_dump == 1) {
mdelay(2000);
run_command("usb stop", 0);
mdelay(1000);
}
#endif
return ret;
}
/**
* Inovke the dump routine and in case of failure, do not stop unless the user
* requested to stop
*/
void dump_func(unsigned int dump_level)
{
uint64_t etime;
uint64_t ptime;
int ping_status = 0;
char *serverip = NULL, *forced_dump = NULL;
char runcmd[50] = {0};
#ifdef CONFIG_IPQ_ETH_INIT_DEFER
puts("\nNet: ");
eth_initialize();
#endif
forced_dump = getenv("force_collect_dump");
if (forced_dump) {
serverip = getenv("serverip");
if (serverip != NULL) {
printf("Using serverip from env %s\n", serverip);
} else {
printf("\nServer ip not found, run dhcp or configure\n");
goto exit;
}
printf("Trying to ping server.....\n");
snprintf(runcmd, sizeof(runcmd), "ping %s", serverip);
ptime = get_timer_masked() + (10 * CONFIG_SYS_HZ);
while (get_timer_masked() <= ptime) {
if (run_command(runcmd, 0) == CMD_RET_SUCCESS) {
ping_status = 1;
break;
}
mdelay(500);
}
if (ping_status != 1) {
printf("Ping failed\n");
goto exit;
}
if (do_dumpqca_data(dump_level) == CMD_RET_FAILURE)
printf("Crashdump saving failed!\n");
goto exit;
} else {
etime = get_timer_masked() + (10 * CONFIG_SYS_HZ);
printf("\nHit any key within 10s to stop dump activity...");
while (!tstc()) { /* while no incoming data */
if (get_timer_masked() >= etime) {
if (getenv("dump_minimal_and_full")) {
/* dump minidump and full dump*/
if (do_dumpqca_data(MINIMAL_DUMP) == CMD_RET_FAILURE)
printf("Minidump saving failed!\n");
if (do_dumpqca_data(FULL_DUMP) == CMD_RET_FAILURE)
printf("Crashdump saving failed!\n");
} else {
if (do_dumpqca_data(dump_level) == CMD_RET_FAILURE)
printf("Crashdump saving failed!\n");
}
break;
}
}
}
/* reset the system, some images might not be loaded
* when crashmagic is found
*/
exit:
crashdump_exit();
}
#ifdef CONFIG_MTD_DEVICE
/*
* NAND flash check and write. Before writing into the nand flash
* this function checks if the block is non-bad, and skips if bad. While
* skipping, there is also possiblity of crossing the partition and corrupting
* next partition with crashdump data. So this function also checks whether
* offset is within the partition, where the configured offset belongs.
*
* Returns 0 on succes and 1 otherwise
*/
static int check_and_write_crashdump_nand_flash(
struct crashdump_flash_nand_cxt *nand_cnxt,
nand_info_t *nand, unsigned char *data,
unsigned int req_size)
{
nand_erase_options_t nand_erase_options;
uint32_t part_start = nand_cnxt->part_start;
uint32_t part_end = nand_cnxt->part_start + nand_cnxt->part_size;
unsigned int remaining_len = req_size;
unsigned int write_length, data_offset = 0;
loff_t skipoff, skipoff_cmp, *offset;
int ret = 0;
static int first_erase = 1;
offset = &nand_cnxt->cur_crashdump_offset;
memset(&nand_erase_options, 0, sizeof(nand_erase_options));
nand_erase_options.length = nand->erasesize;
while (remaining_len)
{
skipoff = *offset - (*offset & (nand->erasesize - 1));
skipoff_cmp = skipoff;
for (; skipoff < part_end; skipoff += nand->erasesize) {
if (nand_block_isbad(nand, skipoff)) {
printf("Skipping bad block at 0x%llx\n", skipoff);
continue;
}
else
break;
}
if (skipoff_cmp != skipoff)
*offset = skipoff;
if(part_start > *offset || ((*offset + remaining_len) >= part_end)) {
printf("Failure: Attempt to write in next partition\n");
return 1;
}
if((*offset & (nand->erasesize - 1)) == 0 || first_erase){
nand_erase_options.offset = *offset;
ret = nand_erase_opts(&nand_info[0],
&nand_erase_options);
if (ret)
return ret;
first_erase = 0;
}
if( remaining_len > nand->erasesize) {
skipoff = (*offset & (nand->erasesize - 1));
write_length = (skipoff != 0) ? (nand->erasesize - skipoff)
: (nand->erasesize);
ret = nand_write(nand, *offset, &write_length,
data + data_offset);
if (ret)
return ret;
remaining_len -= write_length;
*offset += write_length;
data_offset += write_length;
}
else {
ret = nand_write(nand, *offset, &remaining_len,
data + data_offset);
*offset += remaining_len;
remaining_len = 0;
}
}
return ret;
}
/*
* Init function for NAND flash writing. It intializes its own context
* and erases the required sectors
*/
int init_crashdump_nand_flash_write(void *cnxt, loff_t offset,
unsigned int total_size)
{
struct crashdump_flash_nand_cxt *nand_cnxt = cnxt;
int ret;
ret = smem_getpart_from_offset(offset, &nand_cnxt->part_start,
&nand_cnxt->part_size);
if (ret)
return ret;
nand_cnxt->start_crashdump_offset = offset;
nand_cnxt->cur_crashdump_offset = offset;
nand_cnxt->cur_page_data_len = 0;
nand_cnxt->write_size = nand_info[0].writesize;
if (nand_info[0].writesize > MAX_NAND_PAGE_SIZE) {
printf("nand page write size is more than configured size\n");
return -ENOMEM;
}
return 0;
}
/*
* Deinit function for NAND flash writing. It writes the remaining data
* stored in temp buffer to NAND.
*/
int deinit_crashdump_nand_flash_write(void *cnxt)
{
struct crashdump_flash_nand_cxt *nand_cnxt = cnxt;
unsigned int cur_nand_write_len = nand_cnxt->cur_page_data_len;
int ret_val = 0;
int remaining_bytes = nand_cnxt->write_size -
nand_cnxt->cur_page_data_len;
if (cur_nand_write_len) {
/*
* Make the write data in multiple of page write size
* and write remaining data in NAND flash
*/
memset(nand_cnxt->temp_data + nand_cnxt->cur_page_data_len,
0xFF, remaining_bytes);
cur_nand_write_len = nand_cnxt->write_size;
ret_val = check_and_write_crashdump_nand_flash(nand_cnxt,
&nand_info[0], nand_cnxt->temp_data,
cur_nand_write_len);
}
return ret_val;
}
/*
* Write function for NAND flash. NAND writing works on page basis so
* this function writes the data in mulitple of page size and stores the
* remaining data in temp buffer. This temp buffer data will be appended
* with next write data.
*/
int crashdump_nand_flash_write_data(void *cnxt,
unsigned char *data, unsigned int size)
{
struct crashdump_flash_nand_cxt *nand_cnxt = cnxt;
unsigned char *cur_data_pos = data;
unsigned int remaining_bytes;
unsigned int total_bytes;
unsigned int cur_nand_write_len;
unsigned int remaining_len_cur_page;
int ret_val;
remaining_bytes = total_bytes = nand_cnxt->cur_page_data_len + size;
/*
* Check for minimum write size and store the data in temp buffer if
* the total size is less than it
*/
if (total_bytes < nand_cnxt->write_size) {
memcpy(nand_cnxt->temp_data + nand_cnxt->cur_page_data_len,
data, size);
nand_cnxt->cur_page_data_len += size;
return 0;
}
/*
* Append the remaining length of data for complete nand page write in
* currently stored data and do the nand write
*/
remaining_len_cur_page = nand_cnxt->write_size -
nand_cnxt->cur_page_data_len;
cur_nand_write_len = nand_cnxt->write_size;
memcpy(nand_cnxt->temp_data + nand_cnxt->cur_page_data_len, data,
remaining_len_cur_page);
ret_val = check_and_write_crashdump_nand_flash(nand_cnxt,
&nand_info[0], nand_cnxt->temp_data,
cur_nand_write_len);
if (ret_val)
return ret_val;
cur_data_pos += remaining_len_cur_page;
/*
* Calculate the write length in multiple of page length and do the nand
* write for same length
*/
cur_nand_write_len = ((data + size - cur_data_pos) /
nand_cnxt->write_size) * nand_cnxt->write_size;
if (cur_nand_write_len > 0) {
ret_val = check_and_write_crashdump_nand_flash(nand_cnxt,
&nand_info[0], cur_data_pos,
cur_nand_write_len);
if (ret_val)
return ret_val;
}
cur_data_pos += cur_nand_write_len;
/* Store the remaining data in temp data */
remaining_bytes = data + size - cur_data_pos;
memcpy(nand_cnxt->temp_data, cur_data_pos, remaining_bytes);
nand_cnxt->cur_page_data_len = remaining_bytes;
return 0;
}
#endif
#ifdef CONFIG_QCA_SPI
/* Init function for SPI NOR flash writing. It erases the required sectors */
int init_crashdump_spi_flash_write(void *cnxt,
loff_t offset,
unsigned int total_size)
{
int ret;
unsigned int required_erase_size;
struct crashdump_flash_spi_cxt *spi_flash_cnxt = cnxt;
spi_flash_cnxt->start_crashdump_offset = offset;
spi_flash_cnxt->cur_crashdump_offset = offset;
if (total_size & (sfi->flash_block_size - 1))
required_erase_size = (total_size &
~(sfi->flash_block_size - 1)) +
sfi->flash_block_size;
else
required_erase_size = total_size;
ret = spi_flash_erase(crashdump_spi_flash,
offset,
required_erase_size);
return ret;
}
/* Write function for SPI NOR flash */
int crashdump_spi_flash_write_data(void *cnxt,
unsigned char *data, unsigned int size)
{
struct crashdump_flash_spi_cxt *spi_flash_cnxt = cnxt;
unsigned int cur_size = size;
int ret;
ret = spi_flash_write(crashdump_spi_flash,
spi_flash_cnxt->cur_crashdump_offset,
cur_size, data);
if (!ret)
spi_flash_cnxt->cur_crashdump_offset += cur_size;
return ret;
}
/* Deinit function for SPI NOR flash writing. */
int deinit_crashdump_spi_flash_write(void *cnxt)
{
return 0;
}
#endif
#ifdef CONFIG_QCA_MMC
/* Init function for EMMC. It initialzes the EMMC */
static int crashdump_init_mmc(struct mmc *mmc)
{
int ret;
if (!mmc) {
puts("No MMC card found\n");
return -EINVAL;
}
ret = mmc_init(mmc);
if (ret)
puts("MMC init failed\n");
return ret;
}
/*
* Init function for EMMC flash writing. It initialzes its
* own context and EMMC
*/
int init_crashdump_emmc_flash_write(void *cnxt, loff_t offset,
unsigned int total_size)
{
struct crashdump_flash_emmc_cxt *emmc_cnxt = cnxt;
emmc_cnxt->start_crashdump_offset = offset;
emmc_cnxt->cur_crashdump_offset = offset;
emmc_cnxt->cur_blk_data_len = 0;
emmc_cnxt->write_size = mmc->write_bl_len;
if (mmc->write_bl_len > MAX_EMMC_BLK_LEN) {
printf("mmc block length is more than configured size\n");
return -ENOMEM;
}
return 0;
}
/*
* Deinit function for EMMC flash writing. It writes the remaining data
* stored in temp buffer to EMMC
*/
int deinit_crashdump_emmc_flash_write(void *cnxt)
{
struct crashdump_flash_emmc_cxt *emmc_cnxt = cnxt;
unsigned int cur_blk_write_len = emmc_cnxt->cur_blk_data_len;
int ret_val = 0;
int n;
int remaining_bytes = emmc_cnxt->write_size -
emmc_cnxt->cur_blk_data_len;
if (cur_blk_write_len) {
/*
* Make the write data in multiple of block length size
* and write remaining data in emmc
*/
memset(emmc_cnxt->temp_data + emmc_cnxt->cur_blk_data_len,
0xFF, remaining_bytes);
cur_blk_write_len = emmc_cnxt->write_size;
n = mmc->block_dev.block_write(CONFIG_SYS_MMC_CRASHDUMP_DEV,
emmc_cnxt->cur_crashdump_offset,
1,
(u_char *)emmc_cnxt->temp_data);
ret_val = (n == 1) ? 0 : -ENOMEM;
}
return ret_val;
}
/*
* Write function for EMMC flash. EMMC writing works on block basis so
* this function writes the data in mulitple of block length and stores
* remaining data in temp buffer. This temp buffer data will be appended
* with next write data.
*/
int crashdump_emmc_flash_write_data(void *cnxt,
unsigned char *data, unsigned int size)
{
struct crashdump_flash_emmc_cxt *emmc_cnxt = cnxt;
unsigned char *cur_data_pos = data;
unsigned int remaining_bytes;
unsigned int total_bytes;
unsigned int cur_emmc_write_len;
unsigned int cur_emmc_blk_len;
unsigned int remaining_len_cur_page;
int ret_val;
int n;
remaining_bytes = total_bytes = emmc_cnxt->cur_blk_data_len + size;
/*
* Check for block size and store the data in temp buffer if
* the total size is less than it
*/
if (total_bytes < emmc_cnxt->write_size) {
memcpy(emmc_cnxt->temp_data + emmc_cnxt->cur_blk_data_len,
data, size);
emmc_cnxt->cur_blk_data_len += size;
return 0;
}
/*
* Append the remaining length of data for complete emmc block write in
* currently stored data and do the block write
*/
remaining_len_cur_page = emmc_cnxt->write_size -
emmc_cnxt->cur_blk_data_len;
cur_emmc_write_len = emmc_cnxt->write_size;
memcpy(emmc_cnxt->temp_data + emmc_cnxt->cur_blk_data_len, data,
remaining_len_cur_page);
n = mmc->block_dev.block_write(CONFIG_SYS_MMC_CRASHDUMP_DEV,
emmc_cnxt->cur_crashdump_offset,
1,
(u_char *)emmc_cnxt->temp_data);
ret_val = (n == 1) ? 0 : -ENOMEM;
if (ret_val)
return ret_val;
cur_data_pos += remaining_len_cur_page;
emmc_cnxt->cur_crashdump_offset += 1;
/*
* Calculate the write length in multiple of block length and do the
* emmc block write for same length
*/
cur_emmc_blk_len = ((data + size - cur_data_pos) /
emmc_cnxt->write_size);
cur_emmc_write_len = cur_emmc_blk_len * emmc_cnxt->write_size;
if (cur_emmc_write_len > 0) {
n = mmc->block_dev.block_write(CONFIG_SYS_MMC_CRASHDUMP_DEV,
emmc_cnxt->cur_crashdump_offset,
cur_emmc_blk_len,
(u_char *)cur_data_pos);
ret_val = (n == cur_emmc_blk_len) ? 0 : -1;
if (ret_val)
return ret_val;
}
cur_data_pos += cur_emmc_write_len;
emmc_cnxt->cur_crashdump_offset += cur_emmc_blk_len;
/* Store the remaining data in temp data */
remaining_bytes = data + size - cur_data_pos;
memcpy(emmc_cnxt->temp_data, cur_data_pos, remaining_bytes);
emmc_cnxt->cur_blk_data_len = remaining_bytes;
return 0;
}
#endif
static int qca_wdt_write_crashdump_configure(int flash_type)
{
int ret = 0;
/*
* Determine the flash type and initialize function pointer for flash
* operations and its context which needs to be passed to these functions
*/
if (((flash_type == SMEM_BOOT_NAND_FLASH) ||
(flash_type == SMEM_BOOT_QSPI_NAND_FLASH))) {
#ifdef CONFIG_MTD_DEVICE
crashdump_cnxt = (void *)&crashdump_nand_cnxt;
crashdump_flash_write_init = init_crashdump_nand_flash_write;
crashdump_flash_write = crashdump_nand_flash_write_data;
crashdump_flash_write_deinit =
deinit_crashdump_nand_flash_write;
#endif
#ifdef CONFIG_QCA_SPI
} else if (flash_type == SMEM_BOOT_SPI_FLASH) {
if (!crashdump_spi_flash) {
crashdump_spi_flash = spi_flash_probe(sfi->flash_index,
sfi->flash_chip_select,
CONFIG_CRASHDUMP_SPI_SPEED,
CONFIG_CRASHDUMP_SPI_MODE);
if (!crashdump_spi_flash) {
printf("spi_flash_probe() failed");
return -EIO;
}
}
crashdump_cnxt = (void *)&crashdump_flash_spi_cnxt;
crashdump_flash_write = crashdump_spi_flash_write_data;
crashdump_flash_write_init = init_crashdump_spi_flash_write;
crashdump_flash_write_deinit =
deinit_crashdump_spi_flash_write;
#endif
#ifdef CONFIG_QCA_MMC
} else if (flash_type == SMEM_BOOT_MMC_FLASH) {
mmc = find_mmc_device(CONFIG_SYS_MMC_CRASHDUMP_DEV);
ret = crashdump_init_mmc(mmc);
if (ret)
return ret;
crashdump_cnxt = (void *)&crashdump_emmc_cnxt;
crashdump_flash_write_init = init_crashdump_emmc_flash_write;
crashdump_flash_write = crashdump_emmc_flash_write_data;
crashdump_flash_write_deinit =
deinit_crashdump_emmc_flash_write;
#endif
} else {
return -EINVAL;
}
return ret;
}
void set_minidump_bootargs(void)
{
char runcmd[128], *part_name = getenv("dump_to_nvmem");
int flash_type = sfi->flash_type;
uint32_t * buf = NULL;
switch (sfi->flash_type) {
case SMEM_BOOT_NAND_FLASH:
case SMEM_BOOT_QSPI_NAND_FLASH:
case SMEM_BOOT_MMC_FLASH:
flash_type = sfi->flash_type;
break;
case SMEM_BOOT_SPI_FLASH:
if (get_which_flash_param(part_name))
flash_type = SMEM_BOOT_QSPI_NAND_FLASH;
else
flash_type = SMEM_BOOT_MMC_FLASH;
break;
default:
goto retn;
}
if ((flash_type == SMEM_BOOT_NAND_FLASH) ||
(flash_type == SMEM_BOOT_QSPI_NAND_FLASH)) {
#ifdef CONFIG_MTD_DEVICE
uint32_t offset, part_size, read_size = 64;
if (getpart_offset_size(part_name, &offset, &part_size))
goto retn;
buf = malloc(read_size);
if (!buf)
goto retn;
snprintf(runcmd, sizeof(runcmd), "nand read 0x%x 0x%x 0x%x",
(uint32_t)buf, offset, read_size);
#endif
} else {
#ifdef CONFIG_QCA_MMC
block_dev_desc_t *blk_dev = mmc_get_dev(0);
disk_partition_t disk_info;
if (!blk_dev)
goto retn;
if (get_partition_info_efi_by_name(blk_dev, part_name,
&disk_info))
goto retn;
buf = malloc(disk_info.blksz);
if (!buf)
goto retn;
snprintf(runcmd, sizeof(runcmd), "mmc read 0x%x 0x%lx 0x1",
(uint32_t)buf, disk_info.start);
#endif
}
if (run_command(runcmd, 0)) {
free(buf);
goto retn;
}
if (buf && (buf[0] == MINIDUMP_MAGIC1_COOKIE) &&
(buf[1] == MINIDUMP_MAGIC2_COOKIE))
run_command("setenv bootargs ${bootargs} collect_minidump", 0);
retn:
return;
}
/*
* This function writes the crashdump data in flash memory.
* It has function pointers for init, deinit and writing. These
* function pointers are being initialized with respective flash
* memory writing routines.
*/
static int qca_wdt_write_crashdump_data(
struct qca_wdt_crashdump_data *crashdump_data,
loff_t crashdump_offset)
{
int ret = 0;
unsigned int required_size;
/* Start writing cpu context and uname in flash */
required_size = CONFIG_CPU_CONTEXT_DUMP_SIZE +
crashdump_data->uname_length;
ret = crashdump_flash_write_init(crashdump_cnxt,
crashdump_offset,
required_size);
if (ret)
return ret;
ret = crashdump_flash_write(crashdump_cnxt,
crashdump_data->cpu_context,
CONFIG_CPU_CONTEXT_DUMP_SIZE);
if (!ret)
ret = crashdump_flash_write(crashdump_cnxt,
crashdump_data->uname,
crashdump_data->uname_length);
if (!ret)
ret = crashdump_flash_write_deinit(crashdump_cnxt);
return ret;
}
/*
* Function for collecting the crashdump data in flash. It extracts the
* crashdump TLV(Type Length Value) data and CPU context information from
* page allocated by kernel for crashdump data collection. It determines
* the type of boot flash memory and writes all these crashdump information
* in provided offset in flash memory.
*/
int do_dumpqca_minimal_data(const char *offset)
{
unsigned char *kernel_crashdump_address =
(unsigned char *) CONFIG_QCA_KERNEL_CRASHDUMP_ADDRESS;
int flash_type;
int ret_val;
loff_t crashdump_offset;
char *dump_to_flash = getenv("dump_to_flash");
char *dump_to_nvmem = NULL;
if (dump_to_flash) {
setenv("dump_to_nvmem", "");
setenv("dump_to_mem", "");
} else {
dump_to_nvmem = getenv("dump_to_nvmem");
if (dump_to_nvmem)
setenv("dump_to_mem", "");
}
if (sfi->flash_type == SMEM_BOOT_NAND_FLASH) {
flash_type = SMEM_BOOT_NAND_FLASH;
} else if (sfi->flash_type == SMEM_BOOT_QSPI_NAND_FLASH) {
flash_type = SMEM_BOOT_QSPI_NAND_FLASH;
} else if (sfi->flash_type == SMEM_BOOT_SPI_FLASH) {
flash_type = SMEM_BOOT_SPI_FLASH;
#ifdef CONFIG_QCA_MMC
} else if (sfi->flash_type == SMEM_BOOT_MMC_FLASH) {
flash_type = SMEM_BOOT_MMC_FLASH;
#endif
} else {
printf("command not supported for this flash memory\n");
return -EINVAL;
}
ret_val = str2off(offset, &crashdump_offset);
if (!ret_val)
return -EINVAL;
g_crashdump_data.cpu_context = kernel_crashdump_address;
tlv_msg.msg_buffer = kernel_crashdump_address + TLV_BUF_OFFSET;
tlv_msg.cur_msg_buffer_pos = tlv_msg.msg_buffer;
tlv_msg.len = CONFIG_TLV_DUMP_SIZE;
ret_val = qca_wdt_extract_crashdump_data(&tlv_msg, &g_crashdump_data);
if (ret_val) {
printf("%s: crashdump extraction failed\n", __func__);
return ret_val;
}
if (dump_to_flash || dump_to_nvmem)
{
if (dump_to_nvmem) {
if (flash_type == SMEM_BOOT_SPI_FLASH) {
if (get_which_flash_param(dump_to_nvmem))
flash_type = SMEM_BOOT_QSPI_NAND_FLASH;
else
flash_type = SMEM_BOOT_MMC_FLASH;
}
dump2nvmem_info.flash_type = flash_type;
if ((flash_type == SMEM_BOOT_NAND_FLASH) ||
(flash_type == SMEM_BOOT_QSPI_NAND_FLASH)) {
#ifdef CONFIG_MTD_DEVICE
uint32_t off, size, valid_start_off;
uint8_t valid_start_found = 0;
ret_val = getpart_offset_size(dump_to_nvmem,
&off, &size);
if (ret_val) {
printf("Error: %s Invalid partition\n", dump_to_nvmem);
return ret_val;
}
dump2nvmem_info.offset = valid_start_off = off;
dump2nvmem_info.size = size;
dump2nvmem_info.blksize = nand_info[0].erasesize;
dump2nvmem_info.dump_off = nand_info[0].erasesize;;
for (; off < (dump2nvmem_info.offset + size);
off += nand_info[0].erasesize) {
if (nand_block_isbad(&nand_info[0], off)) {
dump2nvmem_info.size -= nand_info[0].erasesize;
} else if (!valid_start_found) {
valid_start_off = off;
valid_start_found = 1;
}
}
if (!dump2nvmem_info.size) {
printf("Error: %s bad partition\n", dump_to_nvmem);
return -EIO;
} else
dump2nvmem_info.offset = valid_start_off;
#endif
} else {
#ifdef CONFIG_QCA_MMC
block_dev_desc_t *blk_dev = mmc_get_dev(0);
disk_partition_t disk_info;
if (!blk_dev) {
printf("Error: %s Invalid partition\n", dump_to_nvmem);
return ret_val;
}
ret_val = get_partition_info_efi_by_name(blk_dev,
dump_to_nvmem, &disk_info);
if (ret_val) {
printf("Error: %s Invalid partition\n", dump_to_nvmem);
return ret_val;
}
dump2nvmem_info.offset = disk_info.start;
dump2nvmem_info.dump_off = 1;
dump2nvmem_info.blksize = disk_info.blksz;
dump2nvmem_info.size = disk_info.size * disk_info.blksz;
#endif
}
}
ret_val = qca_wdt_write_crashdump_configure(flash_type);
if (ret_val) {
printf("crashdump configure flash failure\n");
return ret_val;
}
}
if (dump_to_flash) {
ret_val = qca_wdt_write_crashdump_data(&g_crashdump_data,
crashdump_offset);
if (ret_val) {
printf("crashdump data writing in flash failure\n");
return -EPERM;
}
printf("crashdump data writing in flash successful\n");
} else {
dump_func(MINIMAL_DUMP);
}
return 0;
}
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