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ppc440_uc: Basic emulation of PPC440 DMA controller

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PPC440 SoCs such as the AMCC 460EX have a DMA controller which is used
by AmigaOS on the sam460ex. Implement the parts used by AmigaOS so it
can get further booting on the sam460ex machine.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
BALATON Zoltan 2018-06-29 14:04:33 +02:00 • committed by David Gibson
parent d2179f70d3
commit 3c409c1927
3 changed files with 226 additions and 0 deletions
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3
hw/ppc/sam460ex.c
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@ -505,6 +505,9 @@ static void sam460ex_init(MachineState *machine)
/* MAL */
ppc4xx_mal_init(env, 4, 16, &uic[2][3]);
/* DMA */
ppc4xx_dma_init(env, 0x200);
/* 256K of L2 cache as memory */
ppc4xx_l2sram_init(env);
/* FIXME: remove this after fixing l2sram mapping in ppc440_uc.c? */