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| author | Nicolas Boichat <drinkcat@chromium.org> | 2018-12-28 11:26:03 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-01-24 00:51:29 -0800 |
| commit | d7579bd4589d08eeabf7c01f055b925acb7aed67 (patch) | |
| tree | 3adead141ceea596ac42f0ed05e2aa59d47a41d1 /core | |
| parent | 3cd175cd9ddec3fd88153b3edb9e1d7e4526420d (diff) | |
| download | chrome-ec-d7579bd4589d08eeabf7c01f055b925acb7aed67.tar.gz | |
mt_scp: Add support to store some code in DRAM
This allows to store specific code/data in a .dram region. This
is used by mt_scp to run code off DRAM, as we plan to have more
code than what can fit in SRAM.
BRANCH=none
BUG=b:122058243
TEST=make BOARD=kukui_scp -j
objdump -x build/kukui_scp/ec.obj
=> Some code is loaded in DRAM
TEST=Load kukui_scp, icachetest works
Change-Id: Idbab809ba86cabe3b984944adc2781b37d2d544b
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1391542
Diffstat (limited to 'core')
| -rw-r--r-- | core/cortex-m/ec.lds.S | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/core/cortex-m/ec.lds.S b/core/cortex-m/ec.lds.S index 2a9a9b2fe0..8bd5bfa21a 100644 --- a/core/cortex-m/ec.lds.S +++ b/core/cortex-m/ec.lds.S @@ -64,6 +64,10 @@ MEMORY #undef REGION #undef REGION_LOAD #endif /* CONFIG_MEMORY_REGIONS */ + +#ifdef CONFIG_DRAM_BASE + DRAM (rwx) : ORIGIN = CONFIG_DRAM_BASE, LENGTH = CONFIG_DRAM_SIZE +#endif } SECTIONS { @@ -422,6 +426,13 @@ SECTIONS #undef REGION_LOAD #endif /* CONFIG_CHIP_MEMORY_REGIONS */ +#ifdef CONFIG_DRAM_BASE + .dram : { + KEEP(*(SORT(.dram.keep.*))) + *(SORT(.dram.*)) + } > DRAM +#endif + #if !(defined(SECTION_IS_RO) && defined(CONFIG_FLASH)) /DISCARD/ : { *(.google) |