diff options
| author | Peng Fan <peng.fan@nxp.com> | 2020-05-05 20:28:43 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2020-05-10 20:55:20 +0200 |
| commit | ed5b253d0e3e6290e63afdb37b71ce9503b6bd5f (patch) | |
| tree | 9597cae7daa46ac01f92cef128a2eb72b580ac4b /arch/arm/mach-imx | |
| parent | 42b26ddc80266cbe9d56526b198afed0b433bfb2 (diff) | |
imx: imx8qm/qxp: check whether m4 partition booted
Add code to check m4 partition booted or not, we will use this
to runtime set device tree file that passed to Linux Kernel.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/imx8/cpu.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c index 103a29746a..6d7b17b464 100644 --- a/arch/arm/mach-imx/imx8/cpu.c +++ b/arch/arm/mach-imx/imx8/cpu.c @@ -585,3 +585,33 @@ void board_boot_order(u32 *spl_boot_list) spl_boot_list[0] = BOOT_DEVICE_NOR; } } + +bool m4_parts_booted(void) +{ + sc_rm_pt_t m4_parts[2]; + int err; + + err = sc_rm_get_resource_owner(-1, SC_R_M4_0_PID0, &m4_parts[0]); + if (err) { + printf("%s get resource [%d] owner error: %d\n", __func__, + SC_R_M4_0_PID0, err); + return false; + } + + if (sc_pm_is_partition_started(-1, m4_parts[0])) + return true; + + if (is_imx8qm()) { + err = sc_rm_get_resource_owner(-1, SC_R_M4_1_PID0, &m4_parts[1]); + if (err) { + printf("%s get resource [%d] owner error: %d\n", + __func__, SC_R_M4_1_PID0, err); + return false; + } + + if (sc_pm_is_partition_started(-1, m4_parts[1])) + return true; + } + + return false; +} |