Hadi Asyrafi | 616da77 | 2019-06-27 11:34:03 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019, Intel Corporation. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <platform_def.h> |
| 8 | #include <string.h> |
| 9 | |
| 10 | #include "agilex_handoff.h" |
| 11 | |
| 12 | #define SWAP_UINT32(x) (((x) >> 24) | (((x) & 0x00FF0000) >> 8) | \ |
| 13 | (((x) & 0x0000FF00) << 8) | ((x) << 24)) |
| 14 | |
| 15 | int agilex_get_handoff(handoff *reverse_hoff_ptr) |
| 16 | { |
| 17 | int i; |
| 18 | uint32_t *buffer; |
| 19 | handoff *handoff_ptr = (handoff *) PLAT_HANDOFF_OFFSET; |
| 20 | |
| 21 | memcpy(reverse_hoff_ptr, handoff_ptr, sizeof(handoff)); |
| 22 | buffer = (uint32_t *)reverse_hoff_ptr; |
| 23 | |
| 24 | /* convert big endian to little endian */ |
| 25 | for (i = 0; i < sizeof(handoff) / 4; i++) |
| 26 | buffer[i] = SWAP_UINT32(buffer[i]); |
| 27 | |
| 28 | if (reverse_hoff_ptr->header_magic != HANDOFF_MAGIC_HEADER) |
| 29 | return -1; |
| 30 | if (reverse_hoff_ptr->pinmux_sel_magic != HANDOFF_MAGIC_PINMUX_SEL) |
| 31 | return -1; |
| 32 | if (reverse_hoff_ptr->pinmux_io_magic != HANDOFF_MAGIC_IOCTLR) |
| 33 | return -1; |
| 34 | if (reverse_hoff_ptr->pinmux_fpga_magic != HANDOFF_MAGIC_FPGA) |
| 35 | return -1; |
| 36 | if (reverse_hoff_ptr->pinmux_delay_magic != HANDOFF_MAGIC_IODELAY) |
| 37 | return -1; |
| 38 | |
| 39 | return 0; |
| 40 | } |