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arm64: zynqmp: Add MTD partition handling for dfu_alt_info generation

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Generate dfu_alt_info generation based on information from MTD partitions.
mtd_found_part() is trying to identify MTD partition which code is running
from. If partitions are not defined and location is not found it is going
to previous behavior.

Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/db58d9f3fc142004d833bb115bfba0e26d660b66.1711109356.git.michal.simek@amd.com
This commit is contained in:
Michal Simek
2024-04-02 15:08:21 +02:00
parent 65d958d4ab
commit c01f594995
1 changed files with 47 additions and 10 deletions
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board/xilinx/zynqmp/zynqmp.c
+47 -10
View File
@@ -628,6 +628,31 @@ enum env_location env_get_location(enum env_operation op, int prio)
#define DFU_ALT_BUF_LEN SZ_1K
static void mtd_found_part(u32 *base, u32 *size)
{
struct mtd_info *part, *mtd;
mtd_probe_devices();
mtd = get_mtd_device_nm("nor0");
if (!IS_ERR_OR_NULL(mtd)) {
list_for_each_entry(part, &mtd->partitions, node) {
debug("0x%012llx-0x%012llx : \"%s\"\n",
part->offset, part->offset + part->size,
part->name);
if (*base >= part->offset &&
*base < part->offset + part->size) {
debug("Found my partition: %d/%s\n",
part->index, part->name);
*base = part->offset;
*size = part->size;
break;
}
}
}
}
void set_dfu_alt_info(char *interface, char *devstr)
{
int multiboot, bootseq = 0, len = 0;
@@ -672,17 +697,29 @@ void set_dfu_alt_info(char *interface, char *devstr)
break;
case QSPI_MODE_24BIT:
case QSPI_MODE_32BIT:
len += snprintf(buf + len, DFU_ALT_BUF_LEN,
"sf 0:0=boot.bin raw %x 0x1500000",
multiboot * SZ_32K);
#if defined(CONFIG_SPL_FS_LOAD_PAYLOAD_NAME) && defined(CONFIG_SYS_SPI_U_BOOT_OFFS)
if (strlen(CONFIG_SPL_FS_LOAD_PAYLOAD_NAME))
len += snprintf(buf + len, DFU_ALT_BUF_LEN,
";%s raw 0x%x 0x500000",
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME,
multiboot * SZ_32K +
CONFIG_SYS_SPI_U_BOOT_OFFS);
{
u32 base = multiboot * SZ_32K;
u32 size = 0x1500000;
u32 limit = size;
mtd_found_part(&base, &limit);
#if defined(CONFIG_SYS_SPI_U_BOOT_OFFS)
size = limit;
limit = CONFIG_SYS_SPI_U_BOOT_OFFS;
#endif
len += snprintf(buf + len, DFU_ALT_BUF_LEN,
"sf 0:0=boot.bin raw 0x%x 0x%x",
base, limit);
#if defined(CONFIG_SPL_FS_LOAD_PAYLOAD_NAME) && defined(CONFIG_SYS_SPI_U_BOOT_OFFS)
if (strlen(CONFIG_SPL_FS_LOAD_PAYLOAD_NAME))
len += snprintf(buf + len, DFU_ALT_BUF_LEN,
";%s raw 0x%x 0x%x",
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME,
base + limit, size - limit);
#endif
}
break;
default:
return;