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| author | Bin Meng <bmeng.cn@gmail.com> | 2021-02-25 17:22:34 +0800 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2021-03-05 10:25:43 +0530 |
| commit | 56d0635f18def8b4bd7b6b5af5f2b0efa98a2a12 (patch) | |
| tree | 1ff89032b3a6bf068134cd045cb669f5f5e976c1 | |
| parent | b56156331693856aceb76e6aa3d61e58f7ae8dd4 (diff) | |
| download | u-boot-56d0635f18def8b4bd7b6b5af5f2b0efa98a2a12.zip u-boot-56d0635f18def8b4bd7b6b5af5f2b0efa98a2a12.tar.gz u-boot-56d0635f18def8b4bd7b6b5af5f2b0efa98a2a12.tar.bz2 | |
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>
| -rw-r--r-- | cmd/Kconfig | 7 | ||||
| -rw-r--r-- | cmd/Makefile | 1 | ||||
| -rw-r--r-- | cmd/addrmap.c | 35 | ||||
| -rw-r--r-- | doc/usage/addrmap.rst | 41 | ||||
| -rw-r--r-- | doc/usage/index.rst | 1 |
5 files changed, 85 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index 4defbd9..fcf59cd 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -97,6 +97,13 @@ config CMD_ACPI 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 @@ obj-y += version.o # 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", + "" +); diff --git a/doc/usage/addrmap.rst b/doc/usage/addrmap.rst new file mode 100644 index 0000000..472fd54 --- /dev/null +++ b/doc/usage/addrmap.rst @@ -0,0 +1,41 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +addrmap command +=============== + +Synopsis +-------- + +:: + + addrmap + +Description +----------- + +The addrmap command is used to display non-identity virtual-physical memory +mappings for 32-bit CPUs. + +The output may look like: + +:: + + => addrmap + vaddr paddr size + ================ ================ ================ + e0000000 fe0000000 00100000 + 00000000 00000000 04000000 + 04000000 04000000 04000000 + 80000000 c00000000 10000000 + 90000000 c10000000 10000000 + a0000000 fe1000000 00010000 + +The first column indicates the virtual address. +The second column indicates the physical address. +The third column indicates the mapped size. + +Configuration +------------- + +To use the addrmap command you must specify CONFIG_CMD_ADDRMAP=y. +It is automatically turned on when CONFIG_ADDR_MAP is set. diff --git a/doc/usage/index.rst b/doc/usage/index.rst index 09372d4..9169fff 100644 --- a/doc/usage/index.rst +++ b/doc/usage/index.rst @@ -14,6 +14,7 @@ Shell commands .. toctree:: :maxdepth: 1 + addrmap base bootefi booti |