It’s getting stuck in a reboot loop.
Not enough time to investigate at the moment, but I’ll dig into this soon.
It may be my build environment.
On Nov 25, 2014, at 5:54 AM, Jonathan Gray <j...@jsg.id.au> wrote:
> On Mon, Nov 24, 2014 at 08:12:33PM -0600, Edwin Amsler wrote:
>> Here are the changes needed to make SATA drives available on the Cubieboard
>> A10. It consists of a DMA workaround and fiddling with some register
>> assignments. I?ve successfully built the RAMDISK kernel via an external
>> drive using this driver patch, so it?s been through what I?m hoping is a
>> valid smoke test.
>>
>> This patch was based off work done by others.
>>
>> Let me know what needs changing.
>
> dlg would prefer this to be done with a callback rather than a flag.
> So here's an attempt to handle it that way.
>
> Doesn't seem to break anything on an amd64 machine with ahci.
>
> Index: dev/ic/ahci.c
> ===================================================================
> RCS file: /cvs/src/sys/dev/ic/ahci.c,v
> retrieving revision 1.16
> diff -u -p -r1.16 ahci.c
> --- dev/ic/ahci.c 13 Jul 2014 23:10:23 -0000 1.16
> +++ dev/ic/ahci.c 25 Nov 2014 10:52:15 -0000
> @@ -75,7 +75,7 @@ int ahci_port_alloc(struct ahci_softc
> void ahci_port_free(struct ahci_softc *, u_int);
> int ahci_port_init(struct ahci_softc *, u_int);
>
> -int ahci_port_start(struct ahci_port *, int);
> +int ahci_default_port_start(struct ahci_port *, int);
> int ahci_port_stop(struct ahci_port *, int);
> int ahci_port_clo(struct ahci_port *);
> int ahci_port_softreset(struct ahci_port *);
> @@ -175,6 +175,9 @@ ahci_attach(struct ahci_softc *sc)
> u_int32_t pi;
> int i;
>
> + if (sc->sc_port_start == NULL)
> + sc->sc_port_start = ahci_default_port_start;
> +
> if (ahci_init(sc) != 0) {
> /* error already printed by ahci_init */
> goto unmap;
> @@ -832,7 +835,7 @@ reterr:
> }
>
> int
> -ahci_port_start(struct ahci_port *ap, int fre_only)
> +ahci_default_port_start(struct ahci_port *ap, int fre_only)
> {
> u_int32_t r;
>
> Index: dev/ic/ahcivar.h
> ===================================================================
> RCS file: /cvs/src/sys/dev/ic/ahcivar.h,v
> retrieving revision 1.8
> diff -u -p -r1.8 ahcivar.h
> --- dev/ic/ahcivar.h 14 Apr 2014 04:42:22 -0000 1.8
> +++ dev/ic/ahcivar.h 25 Nov 2014 10:50:20 -0000
> @@ -137,9 +137,12 @@ struct ahci_softc {
> u_int32_t sc_ccc_ports;
> u_int32_t sc_ccc_ports_cur;
> #endif
> +
> + int (*sc_port_start)(struct ahci_port *, int);
> };
>
> #define DEVNAME(_s) ((_s)->sc_dev.dv_xname)
> +#define ahci_port_start(_p, _f) ((_p)->ap_sc->sc_port_start((_p), (_f)))
>
> int ahci_attach(struct ahci_softc *);
> int ahci_detach(struct ahci_softc *, int);
> Index: arch/armv7/sunxi/sxiahci.c
> ===================================================================
> RCS file: /cvs/src/sys/arch/armv7/sunxi/sxiahci.c,v
> retrieving revision 1.6
> diff -u -p -r1.6 sxiahci.c
> --- arch/armv7/sunxi/sxiahci.c 14 Apr 2014 04:42:22 -0000 1.6
> +++ arch/armv7/sunxi/sxiahci.c 25 Nov 2014 11:37:56 -0000
> @@ -1,6 +1,7 @@
> /* $OpenBSD */
> /*
> * Copyright (c) 2013 Patrick Wildt <patr...@blueri.se>
> + * Copyright (c) 2013,2014 Artturi Alm
> *
> * Permission to use, copy, modify, and distribute this software for any
> * purpose with or without fee is hereby granted, provided that the above
> @@ -44,13 +45,21 @@
> #define SXIAHCI_TIMEOUT 0x100000
> #define SXIAHCI_PWRPIN 40
>
> +#define SXIAHCI_PREG_DMA 0x70
> +#define SXIAHCI_PREG_DMA_MASK (0xff<<8)
> +#define SXIAHCI_PREG_DMA_INIT (0x44<<8)
> +
> void sxiahci_attach(struct device *, struct device *, void *);
> int sxiahci_detach(struct device *, int);
> int sxiahci_activate(struct device *, int);
> +int sxiahci_port_start(struct ahci_port *, int);
>
> extern int ahci_intr(void *);
> extern u_int32_t ahci_read(struct ahci_softc *, bus_size_t);
> extern void ahci_write(struct ahci_softc *, bus_size_t, u_int32_t);
> +extern u_int32_t ahci_pread(struct ahci_port *, bus_size_t);
> +extern void ahci_pwrite(struct ahci_port *, bus_size_t, u_int32_t);
> +extern int ahci_default_port_start(struct ahci_port *, int);
>
> struct sxiahci_softc {
> struct ahci_softc sc;
> @@ -75,18 +84,15 @@ sxiahci_attach(struct device *parent, st
> struct armv7_attach_args *aa = args;
> struct sxiahci_softc *sxisc = (struct sxiahci_softc *)self;
> struct ahci_softc *sc = &sxisc->sc;
> - bus_space_tag_t iot;
> - bus_space_handle_t ioh;
> uint32_t timo;
>
> - sc->sc_iot = iot = aa->aa_iot;
> + sc->sc_iot = aa->aa_iot;
> sc->sc_ios = aa->aa_dev->mem[0].size;
> sc->sc_dmat = aa->aa_dmat;
>
> if (bus_space_map(sc->sc_iot, aa->aa_dev->mem[0].addr,
> - aa->aa_dev->mem[0].size, 0, &sc->sc_ioh))
> + sc->sc_ios, 0, &sc->sc_ioh))
> panic("sxiahci_attach: bus_space_map failed!");
> - ioh = sc->sc_ioh;
>
> /* enable clock */
> sxiccmu_enablemodule(CCMU_AHCI);
> @@ -99,13 +105,13 @@ sxiahci_attach(struct device *parent, st
> SXISET4(sc, SXIAHCI_PHYCS1, 1 << 19);
> delay(10);
>
> - SXICMS4(sc, SXIAHCI_PHYCS0, 1 << 25,
> - 1 << 23 | 1 << 24 | 1 << 18 | 1 << 26);
> + SXICMS4(sc, SXIAHCI_PHYCS0, 7 << 24,
> + 1 << 23 | 5 << 24 | 1 << 18);
> delay(10);
>
> SXICMS4(sc, SXIAHCI_PHYCS1,
> - 1 << 16 | 1 << 12 | 1 << 11 | 1 << 8 | 1 << 6,
> - 1 << 17 | 1 << 10 | 1 << 9 | 1 << 7);
> + 3 << 16 | 0x1f << 8 | 3 << 6,
> + 2 << 16 | 0x06 << 8 | 2 << 6);
> delay(10);
>
> SXISET4(sc, SXIAHCI_PHYCS1, 1 << 28 | 1 << 15);
> @@ -114,18 +120,15 @@ sxiahci_attach(struct device *parent, st
> SXICLR4(sc, SXIAHCI_PHYCS1, 1 << 19);
> delay(10);
>
> - SXICMS4(sc, SXIAHCI_PHYCS0, 1 << 21 | 1 << 20, 1 << 22);
> - delay(10);
> -
> - SXICMS4(sc, SXIAHCI_PHYCS2, 1 << 7 | 1 << 6,
> - 1 << 9 | 1 << 8 | 1 << 5);
> + SXICMS4(sc, SXIAHCI_PHYCS0, 0x07 << 20, 0x03 << 20);
> + SXICMS4(sc, SXIAHCI_PHYCS2, 0x1f << 5, 0x19 << 5);
> delay(5000);
>
> SXISET4(sc, SXIAHCI_PHYCS0, 1 << 19);
> delay(20);
>
> timo = SXIAHCI_TIMEOUT;
> - while ((SXIREAD4(sc, SXIAHCI_PHYCS0) >> 28 & 3) != 2 && --timo)
> + while ((SXIREAD4(sc, SXIAHCI_PHYCS0) >> 28 & 7) != 2 && --timo)
> delay(10);
> if (!timo) {
> printf(": AHCI phy power up failed.\n");
> @@ -158,7 +161,8 @@ sxiahci_attach(struct device *parent, st
>
> SXIWRITE4(sc, SXIAHCI_PI, 1);
> SXICLR4(sc, SXIAHCI_CAP, AHCI_REG_CAP_SPM);
> - sc->sc_flags |= AHCI_F_NO_PMP; /* XXX enough? */
> + sc->sc_flags |= AHCI_F_NO_PMP;
> + sc->sc_port_start = sxiahci_port_start;
> if (ahci_attach(sc) != 0) {
> /* error printed by ahci_attach */
> goto irq;
> @@ -192,4 +196,18 @@ sxiahci_activate(struct device *self, in
> struct ahci_softc *sc = &sxisc->sc;
>
> return ahci_activate((struct device *)sc, act);
> +}
> +
> +int
> +sxiahci_port_start(struct ahci_port *ap, int fre_only)
> +{
> + u_int32_t r;
> +
> + /* Setup DMA */
> + r = ahci_pread(ap, SXIAHCI_PREG_DMA);
> + r &= ~SXIAHCI_PREG_DMA_MASK;
> + r |= SXIAHCI_PREG_DMA_INIT; /* XXX if fre_only? */
> + ahci_pwrite(ap, SXIAHCI_PREG_DMA, r);
> +
> + return (ahci_default_port_start(ap, fre_only));
> }
