mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-05 02:36:39 +09:00
a47a12becf
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de> Acked-by: Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>
79 lines
2.0 KiB
C
79 lines
2.0 KiB
C
/*
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* (C) Copyright 2003
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* This file is based on code
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* (C) Copyright Motorola, Inc., 2000
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*/
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#include <common.h>
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#include <mpc8220.h>
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/* Multichannel DMA microcode */
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extern int taskTable;
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void loadtask (int basetask, int tasks)
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{
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int *sram = (int *) (MMAP_SRAM + 512);
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int *task_org = &taskTable;
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unsigned int start, offset, end;
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int i;
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#ifdef DEBUG
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printf ("basetask = %d, tasks = %d\n", basetask, tasks);
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printf ("task_org = 0x%08x\n", (unsigned int) task_org);
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#endif
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/* setup TaskBAR register */
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*(vu_long *) MMAP_DMA = (MMAP_SRAM + 512);
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/* relocate task table entries */
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offset = (unsigned int) sram;
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for (i = basetask; i < basetask + tasks; i++) {
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sram[i * 8 + 0] = task_org[i * 8 + 0] + offset;
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sram[i * 8 + 1] = task_org[i * 8 + 1] + offset;
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sram[i * 8 + 2] = task_org[i * 8 + 2] + offset;
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sram[i * 8 + 3] = task_org[i * 8 + 3] + offset;
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sram[i * 8 + 4] = task_org[i * 8 + 4];
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sram[i * 8 + 5] = task_org[i * 8 + 5];
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sram[i * 8 + 6] = task_org[i * 8 + 6] + offset;
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sram[i * 8 + 7] = task_org[i * 8 + 7];
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}
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/* relocate task descriptors */
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start = (sram[basetask * 8] - (unsigned int) sram);
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end = (sram[(basetask + tasks - 1) * 8 + 1] - (unsigned int) sram);
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#ifdef DEBUG
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printf ("TDT start = 0x%08x, end = 0x%08x\n", start, end);
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#endif
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start /= 4;
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end /= 4;
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for (i = start; i <= end; i++) {
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sram[i] = task_org[i];
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}
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/* relocate variables */
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start = (sram[basetask * 8 + 2] - (unsigned int) sram);
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end = (sram[(basetask + tasks - 1) * 8 + 2] + 256 -
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(unsigned int) sram);
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start /= 4;
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end /= 4;
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for (i = start; i < end; i++) {
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sram[i] = task_org[i];
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}
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/* relocate function decriptors */
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start = ((sram[basetask * 8 + 3] & 0xfffffffc) - (unsigned int) sram);
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end = ((sram[(basetask + tasks - 1) * 8 + 3] & 0xfffffffc) + 256 -
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(unsigned int) sram);
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start /= 4;
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end /= 4;
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for (i = start; i < end; i++) {
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sram[i] = task_org[i];
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}
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asm volatile ("sync");
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}
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