diff options
| author | Per Forlin <per.forlin@linaro.org> | 2011-08-31 13:24:03 +0200 |
|---|---|---|
| committer | John Rigby <john.rigby@linaro.org> | 2012-05-02 19:44:08 -0600 |
| commit | 9de880faa5c3c343f1baef23c4ebc0cad19182ad (patch) | |
| tree | ee1c852d7b7b026cb4ff0f02156b2dd8c0086bf6 | |
| parent | 5011670fdcf64802ad0d2ed18aaea91a18bdd1c7 (diff) | |
snowball: arm cpu: inv and clean of L2
TODO: make this patch board specific. E.g add a board hook
in cpu.c that the board may implement.
Use generic cache functions for clean and inv, not hardcoded registers.
| -rw-r--r-- | arch/arm/cpu/armv7/cpu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/cpu.c b/arch/arm/cpu/armv7/cpu.c index c6fa8ef13..76d6448db 100644 --- a/arch/arm/cpu/armv7/cpu.c +++ b/arch/arm/cpu/armv7/cpu.c @@ -80,6 +80,13 @@ int cleanup_before_linux(void) * problems for kernel */ invalidate_dcache_all(); - +#ifdef CONFIG_U8500 + /* Clean l2 */ + *((volatile unsigned int *)(0xA04127BC)) = 0xFF; + while (*((volatile unsigned int *)(0xA04127BC)) & 0xFF); + /* Invalidate l2 */ + *((volatile unsigned int *)(0xA041277C)) = 0xFF; + while (*((volatile unsigned int *)(0xA041277C)) & 0xFF); +#endif return 0; } |