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| author | Stefan Roese <sr@denx.de> | 2008-11-18 16:36:22 +0100 |
|---|---|---|
| committer | Shinya Kuribayashi <skuribay@ruby.dti.ne.jp> | 2008-12-10 23:29:09 +0900 |
| commit | 44174343688dba32571a34550dba08971c65fef1 (patch) | |
| tree | 6ca7342381689da038558625d7ff07c53b08f5c7 /cpu/mips/start.S | |
| parent | db08ecaa6eb8176904b3bae103a85ee8f735dc40 (diff) | |
| download | u-boot-imx-44174343688dba32571a34550dba08971c65fef1.zip u-boot-imx-44174343688dba32571a34550dba08971c65fef1.tar.gz u-boot-imx-44174343688dba32571a34550dba08971c65fef1.tar.bz2 | |
MIPS: Add CONFIG_SKIP_LOWLEVEL_INIT
This patch adds the CONFIG_SKIP_LOWLEVEL_INIT option to start.S. This
enables support for boards where the lowlevel initialization is
already done when U-Boot runs (e.g. via OnChip ROM).
This will be used in the upcoming VCTH board support.
Signed-off-by: Stefan Roese <sr@denx.de>
Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
Diffstat (limited to 'cpu/mips/start.S')
| -rw-r--r-- | cpu/mips/start.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cpu/mips/start.S b/cpu/mips/start.S index 6a22302..f6069b3 100644 --- a/cpu/mips/start.S +++ b/cpu/mips/start.S @@ -243,9 +243,11 @@ reset: mtc0 zero, CP0_COUNT mtc0 zero, CP0_COMPARE +#if !defined(CONFIG_SKIP_LOWLEVEL_INIT) /* CONFIG0 register */ li t0, CONF_CM_UNCACHED mtc0 t0, CP0_CONFIG +#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */ /* Initialize $gp. */ @@ -255,6 +257,7 @@ reset: 1: lw gp, 0(ra) +#if !defined(CONFIG_SKIP_LOWLEVEL_INIT) /* Initialize any external memory. */ la t9, lowlevel_init @@ -271,6 +274,7 @@ reset: */ li t0, CONF_CM_CACHABLE_NONCOHERENT mtc0 t0, CP0_CONFIG +#endif /* !CONFIG_SKIP_LOWLEVEL_INIT */ /* Set up temporary stack. */ |