diff options
Diffstat (limited to 'arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S | 111 |
1 files changed, 86 insertions, 25 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S index 5700b1fb654..72f2c11baf6 100644 --- a/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S +++ b/arch/arm/cpu/armv8/fsl-layerscape/lowlevel.S @@ -13,6 +13,11 @@ #ifdef CONFIG_MP #include <asm/arch/mp.h> #endif +#ifdef CONFIG_FSL_LSCH3 +#include <asm/arch-fsl-layerscape/immap_lsch3.h> +#include <asm/arch-fsl-layerscape/soc.h> +#endif +#include <asm/u-boot.h> ENTRY(lowlevel_init) mov x29, lr /* Save LR */ @@ -137,6 +142,16 @@ ENTRY(lowlevel_init) #endif #ifdef CONFIG_FSL_TZASC_400 + /* + * LS2080 and its personalities does not support TZASC + * So skip TZASC related operations + */ + bl get_svr + lsr w0, w0, #16 + ldr w1, =SVR_DEV_LS2080A + cmp w0, w1 + b.eq 1f + /* Set TZASC so that: * a. We use only Region0 whose global secure write/read is EN * b. We use only Region0 whose NSAID write/read is EN @@ -145,26 +160,26 @@ ENTRY(lowlevel_init) * placeholders. */ ldr x1, =TZASC_GATE_KEEPER(0) - ldr x0, [x1] /* Filter 0 Gate Keeper Register */ - orr x0, x0, #1 << 0 /* Set open_request for Filter 0 */ - str x0, [x1] + ldr w0, [x1] /* Filter 0 Gate Keeper Register */ + orr w0, w0, #1 << 0 /* Set open_request for Filter 0 */ + str w0, [x1] ldr x1, =TZASC_GATE_KEEPER(1) - ldr x0, [x1] /* Filter 0 Gate Keeper Register */ - orr x0, x0, #1 << 0 /* Set open_request for Filter 0 */ - str x0, [x1] + ldr w0, [x1] /* Filter 0 Gate Keeper Register */ + orr w0, w0, #1 << 0 /* Set open_request for Filter 0 */ + str w0, [x1] ldr x1, =TZASC_REGION_ATTRIBUTES_0(0) - ldr x0, [x1] /* Region-0 Attributes Register */ - orr x0, x0, #1 << 31 /* Set Sec global write en, Bit[31] */ - orr x0, x0, #1 << 30 /* Set Sec global read en, Bit[30] */ - str x0, [x1] + ldr w0, [x1] /* Region-0 Attributes Register */ + orr w0, w0, #1 << 31 /* Set Sec global write en, Bit[31] */ + orr w0, w0, #1 << 30 /* Set Sec global read en, Bit[30] */ + str w0, [x1] ldr x1, =TZASC_REGION_ATTRIBUTES_0(1) - ldr x0, [x1] /* Region-1 Attributes Register */ - orr x0, x0, #1 << 31 /* Set Sec global write en, Bit[31] */ - orr x0, x0, #1 << 30 /* Set Sec global read en, Bit[30] */ - str x0, [x1] + ldr w0, [x1] /* Region-1 Attributes Register */ + orr w0, w0, #1 << 31 /* Set Sec global write en, Bit[31] */ + orr w0, w0, #1 << 30 /* Set Sec global read en, Bit[30] */ + str w0, [x1] ldr x1, =TZASC_REGION_ID_ACCESS_0(0) ldr w0, [x1] /* Region-0 Access Register */ @@ -179,7 +194,7 @@ ENTRY(lowlevel_init) isb dsb sy #endif - +1: #ifdef CONFIG_ARCH_LS1046A /* Initialize the L2 RAM latency */ mrs x1, S3_1_c11_c0_2 @@ -199,6 +214,12 @@ ENTRY(lowlevel_init) ENDPROC(lowlevel_init) #ifdef CONFIG_FSL_LSCH3 + .globl get_svr +get_svr: + ldr x1, =FSL_LSCH3_SVR + ldr w0, [x1] + ret + hnf_pstate_poll: /* x0 has the desired status, return 0 for success, 1 for timeout * clobber x1, x2, x3, x4, x6, x7 @@ -339,11 +360,6 @@ ENTRY(secondary_boot_func) gic_wait_for_interrupt_m x0, w1 #endif - bl secondary_switch_to_el2 -#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 - bl secondary_switch_to_el1 -#endif - slave_cpu: wfe ldr x0, [x11] @@ -356,19 +372,64 @@ slave_cpu: tbz x1, #25, cpu_is_le rev x0, x0 /* BE to LE conversion */ cpu_is_le: - br x0 /* branch to the given address */ + ldr x5, [x11, #24] + ldr x6, =IH_ARCH_DEFAULT + cmp x6, x5 + b.eq 1f + +#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 + adr x3, secondary_switch_to_el1 + ldr x4, =ES_TO_AARCH64 +#else + ldr x3, [x11] + ldr x4, =ES_TO_AARCH32 +#endif + bl secondary_switch_to_el2 + +1: +#ifdef CONFIG_ARMV8_SWITCH_TO_EL1 + adr x3, secondary_switch_to_el1 +#else + ldr x3, [x11] +#endif + ldr x4, =ES_TO_AARCH64 + bl secondary_switch_to_el2 + ENDPROC(secondary_boot_func) ENTRY(secondary_switch_to_el2) - switch_el x0, 1f, 0f, 0f + switch_el x5, 1f, 0f, 0f 0: ret -1: armv8_switch_to_el2_m x0 +1: armv8_switch_to_el2_m x3, x4, x5 ENDPROC(secondary_switch_to_el2) ENTRY(secondary_switch_to_el1) - switch_el x0, 0f, 1f, 0f + 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 x3, [x11] + + ldr x5, [x11, #24] + ldr x6, =IH_ARCH_DEFAULT + cmp x6, x5 + b.eq 2f + + ldr x4, =ES_TO_AARCH32 + bl switch_to_el1 + +2: ldr x4, =ES_TO_AARCH64 + +switch_to_el1: + switch_el x5, 0f, 1f, 0f 0: ret -1: armv8_switch_to_el1_m x0, x1 +1: armv8_switch_to_el1_m x3, x4, x5 ENDPROC(secondary_switch_to_el1) /* Ensure that the literals used by the secondary boot code are |