diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/armv7/sunxi/psci.S | 80 |
1 files changed, 40 insertions, 40 deletions
diff --git a/arch/arm/cpu/armv7/sunxi/psci.S b/arch/arm/cpu/armv7/sunxi/psci.S index 739ce77..5be497b 100644 --- a/arch/arm/cpu/armv7/sunxi/psci.S +++ b/arch/arm/cpu/armv7/sunxi/psci.S @@ -62,46 +62,6 @@ isb .endm -.globl psci_arch_init -psci_arch_init: - movw r4, #(GICD_BASE & 0xffff) - movt r4, #(GICD_BASE >> 16) - - ldr r5, [r4, #GICD_IGROUPRn] - bic r5, r5, #(1 << 15) @ SGI15 as Group-0 - str r5, [r4, #GICD_IGROUPRn] - - mov r5, #0 @ Set SGI15 priority to 0 - strb r5, [r4, #(GICD_IPRIORITYRn + 15)] - - add r4, r4, #0x1000 @ GICC address - - mov r5, #0xff - str r5, [r4, #GICC_PMR] @ Be cool with non-secure - - ldr r5, [r4, #GICC_CTLR] - orr r5, r5, #(1 << 3) @ Switch FIQEn on - str r5, [r4, #GICC_CTLR] - - mrc p15, 0, r5, c1, c1, 0 @ Read SCR - orr r5, r5, #4 @ Enable FIQ in monitor mode - bic r5, r5, #1 @ Secure mode - mcr p15, 0, r5, c1, c1, 0 @ Write SCR - isb - - mrc p15, 0, r4, c0, c0, 5 @ MPIDR - and r4, r4, #3 @ cpu number in cluster - mov r5, #0x400 @ 1kB of stack per CPU - mul r4, r4, r5 - - adr r5, text_end @ end of text - add r5, r5, #0x2000 @ Skip two pages - lsr r5, r5, #12 @ Align to start of page - lsl r5, r5, #12 - sub sp, r5, r4 @ here's our stack! - - bx lr - .globl psci_fiq_enter psci_fiq_enter: push {r0-r12} @@ -329,5 +289,45 @@ psci_cpu_off: 1: wfi b 1b +.globl psci_arch_init +psci_arch_init: + movw r4, #(GICD_BASE & 0xffff) + movt r4, #(GICD_BASE >> 16) + + ldr r5, [r4, #GICD_IGROUPRn] + bic r5, r5, #(1 << 15) @ SGI15 as Group-0 + str r5, [r4, #GICD_IGROUPRn] + + mov r5, #0 @ Set SGI15 priority to 0 + strb r5, [r4, #(GICD_IPRIORITYRn + 15)] + + add r4, r4, #0x1000 @ GICC address + + mov r5, #0xff + str r5, [r4, #GICC_PMR] @ Be cool with non-secure + + ldr r5, [r4, #GICC_CTLR] + orr r5, r5, #(1 << 3) @ Switch FIQEn on + str r5, [r4, #GICC_CTLR] + + mrc p15, 0, r5, c1, c1, 0 @ Read SCR + orr r5, r5, #4 @ Enable FIQ in monitor mode + bic r5, r5, #1 @ Secure mode + mcr p15, 0, r5, c1, c1, 0 @ Write SCR + isb + + mrc p15, 0, r4, c0, c0, 5 @ MPIDR + and r4, r4, #3 @ cpu number in cluster + mov r5, #0x400 @ 1kB of stack per CPU + mul r4, r4, r5 + + adr r5, text_end @ end of text + add r5, r5, #0x2000 @ Skip two pages + lsr r5, r5, #12 @ Align to start of page + lsl r5, r5, #12 + sub sp, r5, r4 @ here's our stack! + + bx lr + text_end: .popsection |