Add arch_cpu_init mainly to open the channel between ACore and SCU.
Signed-off-by: Peng Fan peng.fan@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