diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2019-01-17 08:22:43 +0100 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2019-01-24 10:03:44 +0100 |
| commit | 274ccb5b1175e1d87a5b2eaf2f82826b079382b5 (patch) | |
| tree | d083fcac2d704921aee49601cb650ed9397cca0a /arch/arm/mach-zynqmp/handoff.c | |
| parent | 495c7303a9c3d6a1803cece87978dc99302701da (diff) | |
arm64: zynqmp: Move SoC sources to mach-zynqmp
Similar changes was done for Zynq in past and this patch just follow
this pattern to separate cpu code from SoC code.
Move arch/arm/cpu/armv8/zynqmp/* -> arch/arm/mach-zynqmp/*
And also fix references to these files.
Based on
"ARM: zynq: move SoC sources to mach-zynq"
(sha1: 0107f2403669f764ab726d0d404e35bb9447bbcc)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/arm/mach-zynqmp/handoff.c')
| -rw-r--r-- | arch/arm/mach-zynqmp/handoff.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/arch/arm/mach-zynqmp/handoff.c b/arch/arm/mach-zynqmp/handoff.c new file mode 100644 index 0000000000..f71ff7b3d2 --- /dev/null +++ b/arch/arm/mach-zynqmp/handoff.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2016 - 2017 Xilinx, Inc. + * + * Michal Simek <michal.simek@xilinx.com> + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/hardware.h> +#include <asm/arch/sys_proto.h> + +/* + * atfhandoffparams + * Parameter bitfield encoding + * ----------------------------------------------------------------------------- + * Exec State 0 0 -> Aarch64, 1-> Aarch32 + * endianness 1 0 -> LE, 1 -> BE + * secure (TZ) 2 0 -> Non secure, 1 -> secure + * EL 3:4 00 -> EL0, 01 -> EL1, 10 -> EL2, 11 -> EL3 + * CPU# 5:6 00 -> A53_0, 01 -> A53_1, 10 -> A53_2, 11 -> A53_3 + */ + +#define FSBL_FLAGS_ESTATE_SHIFT 0 +#define FSBL_FLAGS_ESTATE_MASK (1 << FSBL_FLAGS_ESTATE_SHIFT) +#define FSBL_FLAGS_ESTATE_A64 0 +#define FSBL_FLAGS_ESTATE_A32 1 + +#define FSBL_FLAGS_ENDIAN_SHIFT 1 +#define FSBL_FLAGS_ENDIAN_MASK (1 << FSBL_FLAGS_ENDIAN_SHIFT) +#define FSBL_FLAGS_ENDIAN_LE 0 +#define FSBL_FLAGS_ENDIAN_BE 1 + +#define FSBL_FLAGS_TZ_SHIFT 2 +#define FSBL_FLAGS_TZ_MASK (1 << FSBL_FLAGS_TZ_SHIFT) +#define FSBL_FLAGS_NON_SECURE 0 +#define FSBL_FLAGS_SECURE 1 + +#define FSBL_FLAGS_EL_SHIFT 3 +#define FSBL_FLAGS_EL_MASK (3 << FSBL_FLAGS_EL_SHIFT) +#define FSBL_FLAGS_EL0 0 +#define FSBL_FLAGS_EL1 1 +#define FSBL_FLAGS_EL2 2 +#define FSBL_FLAGS_EL3 3 + +#define FSBL_FLAGS_CPU_SHIFT 5 +#define FSBL_FLAGS_CPU_MASK (3 << FSBL_FLAGS_CPU_SHIFT) +#define FSBL_FLAGS_A53_0 0 +#define FSBL_FLAGS_A53_1 1 +#define FSBL_FLAGS_A53_2 2 +#define FSBL_FLAGS_A53_3 3 + +#define FSBL_MAX_PARTITIONS 8 + +/* Structure corresponding to each partition entry */ +struct xfsbl_partition { + uint64_t entry_point; + uint64_t flags; +}; + +/* Structure for handoff parameters to ARM Trusted Firmware (ATF) */ +struct xfsbl_atf_handoff_params { + uint8_t magic[4]; + uint32_t num_entries; + struct xfsbl_partition partition[FSBL_MAX_PARTITIONS]; +}; + +#ifdef CONFIG_SPL_OS_BOOT +void handoff_setup(void) +{ + struct xfsbl_atf_handoff_params *atfhandoffparams; + + atfhandoffparams = (void *)CONFIG_SPL_TEXT_BASE; + atfhandoffparams->magic[0] = 'X'; + atfhandoffparams->magic[1] = 'L'; + atfhandoffparams->magic[2] = 'N'; + atfhandoffparams->magic[3] = 'X'; + + atfhandoffparams->num_entries = 1; + atfhandoffparams->partition[0].entry_point = CONFIG_SYS_TEXT_BASE; + atfhandoffparams->partition[0].flags = FSBL_FLAGS_EL2 << + FSBL_FLAGS_EL_SHIFT; + + writel(CONFIG_SPL_TEXT_BASE, &pmu_base->gen_storage6); +} +#endif |