On Tue, Nov 28, 2017 at 07:16:52PM +0100, Stefano Babic wrote:
On 28/11/2017 13:31, Peng Fan wrote:
Add SIP function to issue SMC call to Arm Trusted Firmware.
I admit I do not know what is a SIP function. Patch simply adds a wrapper, can you add a commit message with a more detailed explanation for this ?
ok. I'll add. This is just like psci call.
Regards, Peng.
Signed-off-by: Peng Fan peng.fan@nxp.com
arch/arm/include/asm/mach-imx/sys_proto.h | 3 +++ arch/arm/mach-imx/Makefile | 2 ++ arch/arm/mach-imx/sip.c | 23 +++++++++++++++++++++++ 3 files changed, 28 insertions(+) create mode 100644 arch/arm/mach-imx/sip.c
diff --git a/arch/arm/include/asm/mach-imx/sys_proto.h b/arch/arm/include/asm/mach-imx/sys_proto.h index a80a392a73..2d8afed406 100644 --- a/arch/arm/include/asm/mach-imx/sys_proto.h +++ b/arch/arm/include/asm/mach-imx/sys_proto.h @@ -122,4 +122,7 @@ void lcdif_power_down(void); int mxs_reset_block(struct mxs_register_32 *reg); int mxs_wait_mask_set(struct mxs_register_32 *reg, u32 mask, u32 timeout); int mxs_wait_mask_clr(struct mxs_register_32 *reg, u32 mask, u32 timeout);
+unsigned long call_imx_sip(unsigned long id, unsigned long reg0,
unsigned long reg1, unsigned long reg2);#endif diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index d77c10e176..c807174363 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -121,6 +121,8 @@ spl/u-boot-nand-spl.imx: SPL FORCE
targets += $(addprefix ../../../,$(IMX_CONFIG) SPL u-boot.uim spl/u-boot-nand-spl.imx)
+obj-$(CONFIG_ARM64) += sip.o
obj-$(CONFIG_MX5) += mx5/ obj-$(CONFIG_MX6) += mx6/ obj-$(CONFIG_MX7) += mx7/ diff --git a/arch/arm/mach-imx/sip.c b/arch/arm/mach-imx/sip.c new file mode 100644 index 0000000000..b724330d35 --- /dev/null +++ b/arch/arm/mach-imx/sip.c @@ -0,0 +1,23 @@ +/*
- Copyright 2017 NXP
- SPDX-License-Identifier: GPL-2.0+
- */
+#include <common.h> +#include <asm/arch/sys_proto.h>
+unsigned long call_imx_sip(unsigned long id, unsigned long reg0,
unsigned long reg1, unsigned long reg2)+{
- struct pt_regs regs;
- regs.regs[0] = id;
- regs.regs[1] = reg0;
- regs.regs[2] = reg1;
- regs.regs[3] = reg2;
- smc_call(®s);
- return regs.regs[0];
+}
Best regards, Stefano
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