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