Add arch_cpu_init mainly to open the channel between ACore and SCU.
Signed-off-by: Peng Fan <peng....@nxp.com>
---
arch/arm/include/asm/arch-imx8/imx-regs.h | 2 ++
arch/arm/include/asm/arch-imx8/sys_proto.h | 9 +++++++
arch/arm/mach-imx/imx8/cpu.c | 40 ++++++++++++++++++++++++++++++
3 files changed, 51 insertions(+)
diff --git a/arch/arm/include/asm/arch-imx8/imx-regs.h
b/arch/arm/include/asm/arch-imx8/imx-regs.h
index bfba2daae2..8a92275ae7 100644
--- a/arch/arm/include/asm/arch-imx8/imx-regs.h
+++ b/arch/arm/include/asm/arch-imx8/imx-regs.h
@@ -38,6 +38,8 @@
#define MXS_GPMI_BASE (APBH_DMA_ARB_BASE_ADDR + 0x02000)
#define MXS_BCH_BASE (APBH_DMA_ARB_BASE_ADDR + 0x04000)
+#define PASS_OVER_INFO_ADDR 0x0010fe00
+
#define USB_BASE_ADDR 0x5b0d0000
#define USB_PHY0_BASE_ADDR 0x5b100000
diff --git a/arch/arm/include/asm/arch-imx8/sys_proto.h
b/arch/arm/include/asm/arch-imx8/sys_proto.h
index f9a3016132..73ffaba7d5 100644
--- a/arch/arm/include/asm/arch-imx8/sys_proto.h
+++ b/arch/arm/include/asm/arch-imx8/sys_proto.h
@@ -6,5 +6,14 @@
#include <asm/mach-imx/sys_proto.h>
#include <linux/types.h>
+struct pass_over_info_t {
+ u16 barker;
+ u16 len;
+ u32 g_bt_cfg_shadow;
+ u32 card_address_mode;
+ u32 bad_block_count_met;
+ u32 g_ap_mu;
+};
+
enum boot_device get_boot_device(void);
int print_bootinfo(void);
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c
index 5223726b59..9ea90f1215 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -82,6 +82,46 @@ int print_cpuinfo(void)
}
#endif
+#define BT_PASSOVER_TAG 0x504F
+struct pass_over_info_t *get_pass_over_info(void)
+{
+ struct pass_over_info_t *p =
+ (struct pass_over_info_t *)PASS_OVER_INFO_ADDR;
+
+ if (p->barker != BT_PASSOVER_TAG ||
+ p->len != sizeof(struct pass_over_info_t))
+ return NULL;
+
+ return p;
+}
+
+int arch_cpu_init(void)
+{
+ sc_ipc_t ipchndl;
+ sc_err_t scierr;
+ struct pass_over_info_t *pass_over;
+
+ gd->arch.ipc_channel_handle = 0;
+
+ /* Open IPC channel */
+ scierr = sc_ipc_open(&ipchndl, SC_IPC_CH);
+ if (scierr != SC_ERR_NONE)
+ return -EPERM;
+
+ gd->arch.ipc_channel_handle = ipchndl;
+
+ pass_over = get_pass_over_info();
+ if (pass_over && pass_over->g_ap_mu == 0) {
+ /*
+ * When ap_mu is 0, means the u-boot is boot
+ * from first container
+ */
+ sc_misc_boot_status(ipchndl, SC_MISC_BOOT_STATUS_SUCCESS);
+ }
+
+ return 0;
+}
+
#if defined(CONFIG_IMX8QXP)
#define FUSE_MAC0_WORD0 708
#define FUSE_MAC0_WORD1 709
--
2.14.1
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