diff options
| author | Anson Huang <b20788@freescale.com> | 2014-10-10 19:42:48 +0800 |
|---|---|---|
| committer | Anson Huang <b20788@freescale.com> | 2014-10-20 14:34:13 +0800 |
| commit | d813058e05d0b5fc28ad5b6b0301d2c621f5db6a (patch) | |
| tree | 95a91cce65f5d8bc1adadda37f5eed4be531814f /include | |
| parent | 60a0b96783042dc8da41eab8ec3d4a6eb0d55986 (diff) | |
MLK-9674-2 arm: imx: improve A9-M4 low power protocol
1. improve busfreq enter/exit protocol, M4 will request
high/low busfreq to A9, M4 will be in TCM when it
release high busfreq, A9 only need to responce when
M4 request high busfreq, no need handshake;
2. only when M4 release high busfreq, A9 is allow to do
linux kernel suspend.
Signed-off-by: Anson Huang <b20788@freescale.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mcc_imx6sx.h | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/include/linux/mcc_imx6sx.h b/include/linux/mcc_imx6sx.h index b6e60b5d3271..51824f79e3c3 100644 --- a/include/linux/mcc_imx6sx.h +++ b/include/linux/mcc_imx6sx.h @@ -26,14 +26,9 @@ #define MU_ARR0_OFFSET 0x10 #define MU_LPM_HANDSHAKE_INDEX 0 -#define MU_LPM_HANDSHAKE_ENTER 0xAAAA1111 -#define MU_LPM_HANDSHAKE_EXIT 0xBBBB2222 -#define MU_LPM_M4_REQUEST_HIGH_BUS 0x1111AAAA -#define MU_LPM_A9_READY_FOR_M4 0xFFFF6666 +#define MU_LPM_BUS_HIGH_READY_FOR_M4 0xFFFF6666 +#define MU_LPM_M4_REQUEST_HIGH_BUS 0x2222CCCC #define MU_LPM_M4_RELEASE_HIGH_BUS 0x2222BBBB -#define MU_LPM_GET_M4_FREQ 0xCCCC3333 -#define MU_LPM_M4_IN_HIGHFREQ 0x33330000 -#define MU_LPM_M4_IN_LOWFREQ 0x33330001 enum { /* FIXME */ |