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Save initial CAP/CAP2/PI config over reset. Provide channel_start callback

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that sets up awin specific DMA regs.
This commit is contained in:
jmcneill 2014-02-24 12:21:27 +00:00
parent 247be8a184
commit f8e8b60ae1
1 changed files with 15 additions and 1 deletions
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16
sys/arch/arm/allwinner/awin_ahcisata.c
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@ -31,7 +31,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(1, "$NetBSD: awin_ahcisata.c,v 1.8 2013/09/08 11:47:50 matt Exp $");
__KERNEL_RCSID(1, "$NetBSD: awin_ahcisata.c,v 1.9 2014/02/24 12:21:27 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@ -166,6 +166,17 @@ awin_ahci_enable(bus_space_tag_t bst, bus_space_handle_t bsh)
bus_space_write_4(bst, bsh, AWIN_SATA_CLK_REG, AWIN_CLK_ENABLE);
}
static void
awin_ahci_channel_start(struct ahci_softc *sc, struct ata_channel *chp)
{
uint32_t dma;
dma = AHCI_READ(sc, AWIN_AHCI_DMA_REG);
dma &= ~0xff00;
dma |= 0x4400;
AHCI_WRITE(sc, AWIN_AHCI_DMA_REG, dma);
}
static void
awin_ahci_attach(device_t parent, device_t self, void *aux)
{
@ -181,6 +192,9 @@ awin_ahci_attach(device_t parent, device_t self, void *aux)
sc->sc_ahcit = aio->aio_core_bst;
sc->sc_ahcis = loc->loc_size;
sc->sc_ahci_ports = 1;
sc->sc_ahci_quirks = AHCI_QUIRK_BADPMP;
sc->sc_save_init_data = true;
sc->sc_channel_start = awin_ahci_channel_start;
bus_space_subregion(aio->aio_core_bst, aio->aio_core_bsh,
loc->loc_offset, loc->loc_size, &sc->sc_ahcih);