diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2018-10-11 16:26:50 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2018-10-23 11:06:00 +0800 |
| commit | 282f524de7f60a722910669a62bfd49eb4ec239c (patch) | |
| tree | b671f068ec295f2d73f69ba8d8911ea7e2658316 /plat/imx/imx8qxp/include/platform_def.h | |
| parent | 9aa39de9f366046a363a6754b40e9f277e73adbd (diff) | |
imx8qxp: add support for cpuidle
This patch adds support for cpuidle with CPU powerdown,
there will be 3 idle states in Linux kernel:
1: wfi;
2: cpu power down;
3: cluster power down.
As Linux kernel needs a broadcast timer for waking up
CPU when whole CLUSTER is powerdown, GPT is adopted as
broadcast timer, and to make the clock & power management
easy for Linux kernel to avoid many workaround/hake in
Linux kernel, TF-A will handle GPT's power & clock management
as well as registers save/restore when suspend/resume.
Also, psci power states are used to determine CORE/CLUSTER/SYSTEM
power state to distinguish CPU idle and SYSTEM suspend which share
same domain_suspend callback.
The SoC IPs register mmap regions are merged into 1 large
section to cover all the SoC IPs register ranges TF-A needs,
this is to save mmap regions and make it simple.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Diffstat (limited to 'plat/imx/imx8qxp/include/platform_def.h')
| -rw-r--r-- | plat/imx/imx8qxp/include/platform_def.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/plat/imx/imx8qxp/include/platform_def.h b/plat/imx/imx8qxp/include/platform_def.h index 55ce4a6e..fa6d2709 100644 --- a/plat/imx/imx8qxp/include/platform_def.h +++ b/plat/imx/imx8qxp/include/platform_def.h @@ -49,6 +49,10 @@ #define MAX_XLAT_TABLES 8 #define MAX_MMAP_REGIONS 9 +#define IMX_REG_BASE 0x50000000 +#define IMX_REG_SIZE 0x10000000 +#define IMX_GPT0_LPCG_BASE 0x5d540000 +#define IMX_GPT0_BASE 0x5d140000 #define IMX_WUP_IRQSTR 0x51090000 #define IMX_BOOT_UART_BASE 0x5a060000 #define IMX_BOOT_UART_BAUDRATE 115200 |