| /* |
| * Copyright (c) 2008 Travis Geiselbrecht |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files |
| * (the "Software"), to deal in the Software without restriction, |
| * including without limitation the rights to use, copy, modify, merge, |
| * publish, distribute, sublicense, and/or sell copies of the Software, |
| * and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be |
| * included in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| .globl platform_early_init |
| platform_early_init: |
| stmdb sp!, {lr} |
| |
| /* enable the NRST reset pin */ |
| ldr r1, =0xfffffd08 |
| ldr r0, =0xa5000401 |
| str r0, [r1] |
| |
| /* disable watchdog */ |
| ldr r1, =0xfffffd44 |
| ldr r0, =0x3fff8fff |
| str r0, [r1] |
| |
| bl init_clock |
| bl init_48mhz_clock |
| |
| /* copy the .data section from ROM to RAM */ |
| ldr r0, =__rodata_end |
| ldr r1, =__data_start |
| ldr r2, =__bss_start |
| __data_loop: |
| cmp r1, r2 |
| ldrlt r3, [r0], #4 |
| strlt r3, [r1], #4 |
| blt __data_loop |
| |
| bl mux_init |
| bl ser_init |
| bl platform_init_interrupts |
| |
| ldmia sp!, {lr} |
| bx lr |