cmd: Add a command to display the address map
This adds a new command 'addrmap' to display the address map for
non-identity virtual-physical memory mappings.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index 4defbd9..fcf59cd 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -97,6 +97,13 @@
between the firmware and OS, and is particularly useful when you
want to make hardware changes without the OS needing to be adjusted.
+config CMD_ADDRMAP
+ bool "addrmap"
+ depends on ADDR_MAP
+ default y
+ help
+ List non-identity virtual-physical memory mappings for 32-bit CPUs.
+
config CMD_BDI
bool "bdinfo"
default y
diff --git a/cmd/Makefile b/cmd/Makefile
index 176bf92..567e2b7 100644
--- a/cmd/Makefile
+++ b/cmd/Makefile
@@ -13,6 +13,7 @@
# command
obj-$(CONFIG_CMD_ACPI) += acpi.o
+obj-$(CONFIG_CMD_ADDRMAP) += addrmap.o
obj-$(CONFIG_CMD_AES) += aes.o
obj-$(CONFIG_CMD_AB_SELECT) += ab_select.o
obj-$(CONFIG_CMD_ADC) += adc.o
diff --git a/cmd/addrmap.c b/cmd/addrmap.c
new file mode 100644
index 0000000..bd23549
--- /dev/null
+++ b/cmd/addrmap.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2021, Bin Meng <bmeng.cn@gmail.com>
+ */
+
+#include <common.h>
+#include <command.h>
+#include <addr_map.h>
+
+static int do_addrmap(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ int i;
+
+ printf(" vaddr paddr size\n");
+ printf("================ ================ ================\n");
+
+ for (i = 0; i < CONFIG_SYS_NUM_ADDR_MAP; i++) {
+ if (address_map[i].size == 0)
+ continue;
+
+ printf("%16.8lx %16.8llx %16.8llx\n",
+ address_map[i].vaddr,
+ (unsigned long long)address_map[i].paddr,
+ (unsigned long long)address_map[i].size);
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ addrmap, 1, 1, do_addrmap,
+ "List non-identity virtual-physical memory mappings for 32-bit CPUs",
+ ""
+);