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| author | Albert ARIBAUD \(3ADEV\) <albert.aribaud@3adev.fr> | 2016-09-26 09:08:05 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-10-06 09:06:16 +0200 |
| commit | 303a24435f3e4b39a6b526ca2a32cd0452713153 (patch) | |
| tree | 33d2d44a1f577492e949241d6b6414757380348f | |
| parent | 083e4fd401f5a29343c28333a5b83693b44bea5a (diff) | |
| download | u-boot-303a24435f3e4b39a6b526ca2a32cd0452713153.tar.gz u-boot-303a24435f3e4b39a6b526ca2a32cd0452713153.tar.xz u-boot-303a24435f3e4b39a6b526ca2a32cd0452713153.zip | |
pcm052: add 'm4go' command
Add the 'm4go' command to pcm052-based targets.
It loads scatter file images.
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
| -rw-r--r-- | board/phytec/pcm052/pcm052.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/board/phytec/pcm052/pcm052.c b/board/phytec/pcm052/pcm052.c index e4f61e1b92..7341899015 100644 --- a/board/phytec/pcm052/pcm052.c +++ b/board/phytec/pcm052/pcm052.c @@ -513,3 +513,41 @@ int checkboard(void) return 0; } + +static int do_m4go(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + ulong addr; + + /* Consume 'm4go' */ + argc--; argv++; + + /* + * Parse provided address - default to load_addr in case not provided. + */ + + if (argc) + addr = simple_strtoul(argv[0], NULL, 16); + else + addr = load_addr; + + /* + * Write boot address in PERSISTENT_ENTRY1[31:0] aka SRC_GPR2[31:0] + */ + writel(addr + 0x401, 0x4006E028); + + /* + * Start secondary processor by enabling its clock + */ + writel(0x15a5a, 0x4006B08C); + + return 1; +} + +U_BOOT_CMD( + m4go, 2 /* one arg max */, 1 /* repeatable */, do_m4go, + "start the secondary Cortex-M4 from scatter file image", + "[<addr>]\n" + " - start secondary Cortex-M4 core using a scatter file image\n" + "The argument needs to be a scatter file\n" +); |