diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2018-08-10 17:49:00 +0800 |
|---|---|---|
| committer | Bai Ping <ping.bai@nxp.com> | 2018-09-15 00:18:32 +0800 |
| commit | 7b60954d68e074d6d0d1a6f828f4392cf7c7137d (patch) | |
| tree | b8c02b2582e001eb86dc8e2f67aa88c478a0d079 /plat/imx/imx8mm/imx8mm_bl31_setup.c | |
| parent | ca98a9fca54b491755e515ca0f0d7f53a19ad74f (diff) | |
plat: imx8mm: Add support for imx8mm lpa
For i.MX8MM low power audio playback, when Linux suspend,
M4 still needs to be active for audio playback, so system
can NOT enter DSM mode but only force A core platform into
STOP mode, PLLs/NoC/DRAM need to be active as well and MU
interrupt wakeup needs to be enabled for waking up Linux
by MU message sent by M4.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Bai Ping <ping.bai@nxp.com>
Diffstat (limited to 'plat/imx/imx8mm/imx8mm_bl31_setup.c')
| -rw-r--r-- | plat/imx/imx8mm/imx8mm_bl31_setup.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/plat/imx/imx8mm/imx8mm_bl31_setup.c b/plat/imx/imx8mm/imx8mm_bl31_setup.c index 587b74dd..9b3145c4 100644 --- a/plat/imx/imx8mm/imx8mm_bl31_setup.c +++ b/plat/imx/imx8mm/imx8mm_bl31_setup.c @@ -234,6 +234,11 @@ void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1, #endif bl31_tzc380_setup(); + /* Assign M4 to domain 1 */ + mmio_write_32(IMX_RDC_BASE + 0x204, 0x1); + mmio_write_32(IMX_RDC_BASE + 0x518, 0xfc); + mmio_write_32(IMX_RDC_BASE + 0x5A4, 0xf3); + #if defined (CSU_RDC_TEST) csu_test(); rdc_test(); |