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>

diff --git a/arch/arm/include/asm/arch-imx8/sys_proto.h b/arch/arm/include/asm/arch-imx8/sys_proto.h
index 2a08ef939d312739d9f3bc70137fdd8ffb50f002..6f1fc8f999d1f2cc4364432adf04bcd98e040c5a 100644 (file)
--- a/arch/arm/include/asm/arch-imx8/sys_proto.h
+++ b/arch/arm/include/asm/arch-imx8/sys_proto.h
@@ -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);

diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 103a29746a657fc1039179ca92f001f279fff5c7..6d7b17b4647542119437707a37d338233127bc4c 100644 (file)
--- 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;
+}

diff --git a/board/freescale/imx8qxp_mek/spl.c b/board/freescale/imx8qxp_mek/spl.c
index 32b61095b0671689951dda7251dcec7fc6daf51b..eefee64ab18f77fd61a31ac749dd2f449ed75be3 100644 (file)
--- a/board/freescale/imx8qxp_mek/spl.c
+++ b/board/freescale/imx8qxp_mek/spl.c
@@ -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