diff options
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S | 154 |
1 files changed, 5 insertions, 149 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S index d75013eb9c..a519f6ed67 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S +++ b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S @@ -11,14 +11,16 @@ #include <asm/gic.h> #include <asm/macro.h> #include <asm/arch-fsl-layerscape/soc.h> -#ifdef CONFIG_MP -#include <asm/arch/mp.h> -#endif #ifdef CONFIG_FSL_LSCH3 #include <asm/arch-fsl-layerscape/immap_lsch3.h> #endif #include <asm/u-boot.h> + .align 3 + .weak secondary_boot_addr +secondary_boot_addr: + .quad 0 + /* Get GIC offset * For LS1043a rev1.0, GIC base address align with 4k. * For LS1043a rev1.1, if DCFG_GIC400_ALIGN[GIC_ADDR_BIT] @@ -424,149 +426,3 @@ ENTRY(__asm_flush_l3_dcache) ret ENDPROC(__asm_flush_l3_dcache) #endif /* CONFIG_SYS_FSL_HAS_CCN504 */ - -#ifdef CONFIG_MP - .align 3 - .global secondary_boot_addr -secondary_boot_addr: - .quad secondary_boot_func - - /* Keep literals not used by the secondary boot code outside it */ - .ltorg - - /* Using 64 bit alignment since the spin table is accessed as data */ - .align 4 - .global secondary_boot_code - /* Secondary Boot Code starts here */ -secondary_boot_code: - .global __spin_table -__spin_table: - .space CONFIG_MAX_CPUS*SPIN_TABLE_ELEM_SIZE - - .align 2 -ENTRY(secondary_boot_func) - /* - * MPIDR_EL1 Fields: - * MPIDR[1:0] = AFF0_CPUID <- Core ID (0,1) - * MPIDR[7:2] = AFF0_RES - * MPIDR[15:8] = AFF1_CLUSTERID <- Cluster ID (0,1,2,3) - * MPIDR[23:16] = AFF2_CLUSTERID - * MPIDR[24] = MT - * MPIDR[29:25] = RES0 - * MPIDR[30] = U - * MPIDR[31] = ME - * MPIDR[39:32] = AFF3 - * - * Linear Processor ID (LPID) calculation from MPIDR_EL1: - * (We only use AFF0_CPUID and AFF1_CLUSTERID for now - * until AFF2_CLUSTERID and AFF3 have non-zero values) - * - * LPID = MPIDR[15:8] | MPIDR[1:0] - */ - mrs x0, mpidr_el1 - ubfm x1, x0, #8, #15 - ubfm x2, x0, #0, #1 - orr x10, x2, x1, lsl #2 /* x10 has LPID */ - ubfm x9, x0, #0, #15 /* x9 contains MPIDR[15:0] */ - /* - * offset of the spin table element for this core from start of spin - * table (each elem is padded to 64 bytes) - */ - lsl x1, x10, #6 - ldr x0, =__spin_table - /* physical address of this cpus spin table element */ - add x11, x1, x0 - - ldr x0, =__real_cntfrq - ldr x0, [x0] - msr cntfrq_el0, x0 /* set with real frequency */ - str x9, [x11, #16] /* LPID */ - mov x4, #1 - str x4, [x11, #8] /* STATUS */ - dsb sy - -slave_cpu: - wfe - ldr x0, [x11] - cbz x0, slave_cpu -#ifndef CONFIG_ARMV8_SWITCH_TO_EL1 - mrs x1, sctlr_el2 -#else - mrs x1, sctlr_el1 -#endif - tbz x1, #25, cpu_is_le - rev x0, x0 /* BE to LE conversion */ -cpu_is_le: - ldr x5, [x11, #24] - cbz x5, 1f - -#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 - adr x4, secondary_switch_to_el1 - ldr x5, =ES_TO_AARCH64 -#else - ldr x4, [x11] - ldr x5, =ES_TO_AARCH32 -#endif - bl secondary_switch_to_el2 - -1: -#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 - adr x4, secondary_switch_to_el1 -#else - ldr x4, [x11] -#endif - ldr x5, =ES_TO_AARCH64 - bl secondary_switch_to_el2 - -ENDPROC(secondary_boot_func) - -ENTRY(secondary_switch_to_el2) - switch_el x6, 1f, 0f, 0f -0: ret -1: armv8_switch_to_el2_m x4, x5, x6 -ENDPROC(secondary_switch_to_el2) - -ENTRY(secondary_switch_to_el1) - mrs x0, mpidr_el1 - ubfm x1, x0, #8, #15 - ubfm x2, x0, #0, #1 - orr x10, x2, x1, lsl #2 /* x10 has LPID */ - - lsl x1, x10, #6 - ldr x0, =__spin_table - /* physical address of this cpus spin table element */ - add x11, x1, x0 - - ldr x4, [x11] - - ldr x5, [x11, #24] - cbz x5, 2f - - ldr x5, =ES_TO_AARCH32 - bl switch_to_el1 - -2: ldr x5, =ES_TO_AARCH64 - -switch_to_el1: - switch_el x6, 0f, 1f, 0f -0: ret -1: armv8_switch_to_el1_m x4, x5, x6 -ENDPROC(secondary_switch_to_el1) - - /* Ensure that the literals used by the secondary boot code are - * assembled within it (this is required so that we can protect - * this area with a single memreserve region - */ - .ltorg - - /* 64 bit alignment for elements accessed as data */ - .align 4 - .global __real_cntfrq -__real_cntfrq: - .quad COUNTER_FREQUENCY - .globl __secondary_boot_code_size - .type __secondary_boot_code_size, %object - /* Secondary Boot Code ends here */ -__secondary_boot_code_size: - .quad .-secondary_boot_code -#endif |