| /* |
| * Copyright (c) 2020 ITE Corporation. All Rights Reserved. |
| * Jyunlin Chen <jyunlin.chen@ite.com.tw> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include "chip_chipregs.h" |
| #include <toolchain.h> |
| |
| /* exports */ |
| GTEXT(__start) |
| |
| /* imports */ |
| GTEXT(__initialize) |
| GTEXT(__irq_wrapper) |
| |
| SECTION_FUNC(vectors, __start) |
| .option norvc; |
| |
| /* |
| * Set mtvec (Machine Trap-Vector Base-Address Register) |
| * to __irq_wrapper. |
| */ |
| la t0, __irq_wrapper |
| csrw mtvec, t0 |
| csrwi mie, 0 |
| |
| /* |
| * bit[3-0]@EIDSR=8: instruction local memory size is 1M byte |
| * This operation must be done before accessing memory. |
| */ |
| la t0, IT8XXX2_GCTRL_EIDSR |
| lb t1, 0(t0) |
| andi t1, t1, 0xf0 |
| ori t1, t1, 0x8 |
| sb t1, 0(t0) |
| |
| /* Jump to __initialize */ |
| tail __initialize |
| |
| /** |
| *----------------------------------------------------------------------------- |
| * 16-bytes signature |
| *----------------------------------------------------------------------------- |
| */ |
| .org 0x84 |
| ## 0 1 2 3 4 5 6 7 |
| .byte 0xA5,0xA5,0xA5,0xA5,0xA5,0xA5,0xA5,0xB5 |
| ## 8 9 10 11 12 13 14 15 |
| .byte 0x85,0x12,0x5A,0x5A,0xAA,0xAA,0x55,0x55 |
| /** |
| *----------------------------------------------------------------------------- |
| * EC firmware version |
| *----------------------------------------------------------------------------- |
| */ |
| |
| .byte 'I', 'T', '8', 'X', 'X', 'X', '2', '-', 'A', 'X', '-',\ |
| 'V', '0', '.', '0', '0' |
| .org 0xa4 |
