diff options
| author | Caleb Connolly <caleb.connolly@linaro.org> | 2024-08-09 01:59:33 +0200 |
|---|---|---|
| committer | Caleb Connolly <caleb.connolly@linaro.org> | 2024-09-06 10:47:46 +0200 |
| commit | a9cbf76e4dd3c3295ed975a14ae4dfb258aefd4b (patch) | |
| tree | beed87941e05c158aa6b22812fc3c4a127466e78 | |
| parent | 75acc51189117b9c42232d0ea5c75cf72e39a4d8 (diff) | |
soc: qcom: cmd-db: map cmd-db region
On at least SM8650 this region might not be included in the memory map.
Use the new mmu_map_region() helper to map it during bind().
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
| -rw-r--r-- | drivers/soc/qcom/cmd-db.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/soc/qcom/cmd-db.c b/drivers/soc/qcom/cmd-db.c index c7c5230983d..67be18e89f4 100644 --- a/drivers/soc/qcom/cmd-db.c +++ b/drivers/soc/qcom/cmd-db.c @@ -6,6 +6,7 @@ #define pr_fmt(fmt) "cmd-db: " fmt +#include <asm/system.h> #include <dm.h> #include <dm/ofnode.h> #include <dm/device_compat.h> @@ -182,9 +183,10 @@ u32 cmd_db_read_addr(const char *id) } EXPORT_SYMBOL_GPL(cmd_db_read_addr); -int cmd_db_bind(struct udevice *dev) +static int cmd_db_bind(struct udevice *dev) { void __iomem *base; + fdt_size_t size; ofnode node; if (cmd_db_header) @@ -194,12 +196,15 @@ int cmd_db_bind(struct udevice *dev) debug("%s(%s)\n", __func__, ofnode_get_name(node)); - base = (void __iomem *)ofnode_get_addr(node); + base = (void __iomem *)ofnode_get_addr_size(node, "reg", &size); if ((fdt_addr_t)base == FDT_ADDR_T_NONE) { log_err("%s: Failed to read base address\n", __func__); return -ENOENT; } + /* On SM8550/SM8650 and newer SoCs cmd-db might not be mapped */ + mmu_map_region((phys_addr_t)base, (phys_size_t)size, false); + cmd_db_header = base; if (!cmd_db_magic_matches(cmd_db_header)) { log_err("%s: Invalid Command DB Magic\n", __func__); |