imx: mx6: implement functions to boot auxiliary core
Implement arch_auxiliary_core_up and arch_auxiliary_core_check_up.
arch_auxiliary_core_check_up is used to check whether M4 is running
or not. arch_auxiliary_core_up is to boot M4 core, the m4 core will
use the pc and stack which is set in arch_auxiliary_core_up to set R15
and R13 register and boot.
Signed-off-by: Ye.Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/include/asm/arch-mx6/imx-regs.h b/arch/arm/include/asm/arch-mx6/imx-regs.h
index 4cff8ee..f3c26dc 100644
--- a/arch/arm/include/asm/arch-mx6/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx6/imx-regs.h
@@ -438,6 +438,11 @@
u32 gpr10;
};
+#define SRC_SCR_M4_ENABLE_OFFSET 22
+#define SRC_SCR_M4_ENABLE_MASK (1 << 22)
+#define SRC_SCR_M4C_NON_SCLR_RST_OFFSET 4
+#define SRC_SCR_M4C_NON_SCLR_RST_MASK (1 << 4)
+
/* GPR1 bitfields */
#define IOMUXC_GPR1_APP_CLK_REQ_N BIT(30)
#define IOMUXC_GPR1_PCIE_EXIT_L1 BIT(28)