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imx: imx8qm/qxp: check whether m4 partition booted

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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>
This commit is contained in:
Peng Fan 2020-05-05 20:28:43 +08:00 committed by Stefano Babic
parent 42b26ddc80
commit ed5b253d0e
3 changed files with 32 additions and 1 deletions
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1
arch/arm/include/asm/arch-imx8/sys_proto.h
View File

@ -29,3 +29,4 @@ int sc_pm_setup_uart(sc_rsrc_t uart_rsrc, sc_pm_clock_rate_t clk_rate);
int imx8_power_domain_lookup_name(const char *name,
struct power_domain *power_domain);
void imx8_power_off_pd_devices(const char *permanent_on_devices[], int size);
bool m4_parts_booted(void);

30
arch/arm/mach-imx/imx8/cpu.c
View File

@ -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;
}

2
board/freescale/imx8qxp_mek/spl.c
View File

@ -58,7 +58,7 @@ void spl_board_init(void)
void spl_board_prepare_for_boot(void)
{
imx_power_off_pd_devices(NULL, 0);
imx8_power_off_pd_devices(NULL, 0);
}
#ifdef CONFIG_SPL_LOAD_FIT