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| author | Cyril Chemparathy <cyril@ti.com> | 2010-06-07 14:13:27 -0400 |
|---|---|---|
| committer | Tom <Tom@bumblecow.com> | 2010-06-08 10:07:17 -0500 |
| commit | 678e008c3a3a27fe2d30cf423679d2d11d0fa5c2 (patch) | |
| tree | 3aa0322ca757111edb9323c9f8adc6ff314b6c40 /include | |
| parent | b5d289fc29842095d5cd0f82cceab1b0b2e824ba (diff) | |
| download | u-boot-imx-678e008c3a3a27fe2d30cf423679d2d11d0fa5c2.zip u-boot-imx-678e008c3a3a27fe2d30cf423679d2d11d0fa5c2.tar.gz u-boot-imx-678e008c3a3a27fe2d30cf423679d2d11d0fa5c2.tar.bz2 | |
ARM1176: Coexist with other ARM1176 platforms
The current ARM1176 CPU specific code is too specific to the SMDK6400
architecture. The following changes were necessary prerequisites for the
addition of other SoCs based on ARM1176.
Existing board's (SMDK6400) configuration has been modified to keep behavior
unchanged despite these changes.
1. Peripheral port remap configurability
The earlier code had hardcoded remap values specific to s3c64xx in start.S.
This change makes the peripheral port remap addresses and sizes configurable.
2. U-Boot code relocation support
Most architectures allow u-boot code to run initially at a different
address (possibly in NOR) and then get relocated to its final resting place
in RAM. Added support for this capability in ARM1176 architecture.
3. Disable TCM if necessary
If a ROM based bootloader happened to have initialized TCM, we disable it here
to keep things sane.
4. Remove unnecessary SoC specific includes
ARM1176 code does not really need this SoC specific include. The presence
of this include prevents builds on other ARM1176 archs.
5. Modified virt-to-phys conversion during MMU disable
The original MMU disable code masks out too many bits from the load address
when it tries to figure out the physical address of the jump target label.
Consequently, it ends up branching to the wrong address after disabling the
MMU.
Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/smdk6400.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/configs/smdk6400.h b/include/configs/smdk6400.h index f04feae..624fe04 100644 --- a/include/configs/smdk6400.h +++ b/include/configs/smdk6400.h @@ -40,6 +40,12 @@ #define CONFIG_S3C64XX 1 /* in a SAMSUNG S3C64XX Family */ #define CONFIG_SMDK6400 1 /* on a SAMSUNG SMDK6400 Board */ +#define CONFIG_SKIP_RELOCATE_UBOOT + +#define CONFIG_PERIPORT_REMAP +#define CONFIG_PERIPORT_BASE 0x70000000 +#define CONFIG_PERIPORT_SIZE 0x13 + #define CONFIG_SYS_SDRAM_BASE 0x50000000 /* input clock of PLL: SMDK6400 has 12MHz input clock */ @@ -61,8 +67,6 @@ #define CONFIG_DISPLAY_CPUINFO #define CONFIG_DISPLAY_BOARDINFO -#undef CONFIG_SKIP_RELOCATE_UBOOT - /* * Size of malloc() pool */ |