From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jan Kiszka Date: Fri, 27 Feb 2015 14:28:03 +0100 Subject: [U-Boot] [PATCH v4 04/14] ARM: Factor out reusable psci_cpu_entry In-Reply-To: References: Message-ID: <5e62f5242de46bee80f6b12999125a296443a45d.1425043693.git.jan.kiszka@siemens.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de _sunxi_cpu_entry can be converted completely into a reusable psci_cpu_entry. Tegra124 will use it as well. CC: Marc Zyngier Signed-off-by: Jan Kiszka --- arch/arm/cpu/armv7/psci.S | 18 ++++++++++++++++++ arch/arm/cpu/armv7/sunxi/psci.S | 20 ++------------------ 2 files changed, 20 insertions(+), 18 deletions(-) diff --git a/arch/arm/cpu/armv7/psci.S b/arch/arm/cpu/armv7/psci.S index d688607..315c20b 100644 --- a/arch/arm/cpu/armv7/psci.S +++ b/arch/arm/cpu/armv7/psci.S @@ -170,4 +170,22 @@ ENTRY(psci_cpu_off_common) bx lr ENDPROC(psci_cpu_off_common) +ENTRY(psci_cpu_entry) + @ Set SMP bit + mrc p15, 0, r0, c1, c0, 1 @ ACTLR + orr r0, r0, #(1 << 6) @ Set SMP bit + mcr p15, 0, r0, c1, c0, 1 @ ACTLR + isb + + bl _nonsec_init + + adr r0, _psci_target_pc + ldr r0, [r0] + b _do_nonsec_entry +ENDPROC(psci_cpu_entry) + +.globl _psci_target_pc +_psci_target_pc: + .word 0 + .popsection diff --git a/arch/arm/cpu/armv7/sunxi/psci.S b/arch/arm/cpu/armv7/sunxi/psci.S index bb3d4ef..9ea3ce8 100644 --- a/arch/arm/cpu/armv7/sunxi/psci.S +++ b/arch/arm/cpu/armv7/sunxi/psci.S @@ -139,7 +139,7 @@ out: mcr p15, 0, r7, c1, c1, 0 @ r2 = target PC .globl psci_cpu_on psci_cpu_on: - adr r0, _target_pc + ldr r0, =_psci_target_pc str r2, [r0] dsb @@ -151,7 +151,7 @@ psci_cpu_on: mov r4, #1 lsl r4, r4, r1 - adr r6, _sunxi_cpu_entry + ldr r6, =psci_cpu_entry str r6, [r0, #0x1a4] @ PRIVATE_REG (boot vector) @ Assert reset on target CPU @@ -197,22 +197,6 @@ psci_cpu_on: mov r0, #ARM_PSCI_RET_SUCCESS @ Return PSCI_RET_SUCCESS mov pc, lr -_target_pc: - .word 0 - -_sunxi_cpu_entry: - @ Set SMP bit - mrc p15, 0, r0, c1, c0, 1 - orr r0, r0, #0x40 - mcr p15, 0, r0, c1, c0, 1 - isb - - bl _nonsec_init - - adr r0, _target_pc - ldr r0, [r0] - b _do_nonsec_entry - .globl psci_cpu_off psci_cpu_off: bl psci_cpu_off_common -- 2.1.4