Date: Tue, 2 Dec 2008 22:21:19 GMT From: Sam Leffler <sam@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 153971 for review Message-ID: <200812022221.mB2MLJe5029459@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=153971 Change 153971 by sam@sam_ebb on 2008/12/02 22:20:52 Fix pci dma after changes to memory layout so memory starts at 0 instead of 0x10000000: AHB_OFFSET was set to 0x10000000 but needs to be 0; rename it to IXP425_AHB_OFFSET and move it to be near the PCI register defs so it's more clear it's related. Submitted by: cognet Affected files ... .. //depot/projects/vap/sys/arm/xscale/ixp425/ixp425_pci.c#3 edit .. //depot/projects/vap/sys/arm/xscale/ixp425/ixp425reg.h#4 edit Differences ... ==== //depot/projects/vap/sys/arm/xscale/ixp425/ixp425_pci.c#3 (text+ko) ==== @@ -130,8 +130,8 @@ if (sc->sc_mem == NULL) panic("cannot allocate PCI MEM space"); -#define AHB_OFFSET 0x10000000UL - if (bus_dma_tag_create(NULL, 1, 0, AHB_OFFSET + 64 * 1024 * 1024, + /* NB: PCI dma window is 64M so anything above must be bounced */ + if (bus_dma_tag_create(NULL, 1, 0, IXP425_AHB_OFFSET + 64 * 1024 * 1024, BUS_SPACE_MAXADDR, NULL, NULL, 0xffffffff, 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_dmat)) panic("couldn't create the PCI dma tag !"); @@ -173,20 +173,20 @@ * begin at the physical memory start + OFFSET */ PCI_CSR_WRITE_4(sc, PCI_AHBMEMBASE, - (AHB_OFFSET & 0xFF000000) + - ((AHB_OFFSET & 0xFF000000) >> 8) + - ((AHB_OFFSET & 0xFF000000) >> 16) + - ((AHB_OFFSET & 0xFF000000) >> 24) + + (IXP425_AHB_OFFSET & 0xFF000000) + + ((IXP425_AHB_OFFSET & 0xFF000000) >> 8) + + ((IXP425_AHB_OFFSET & 0xFF000000) >> 16) + + ((IXP425_AHB_OFFSET & 0xFF000000) >> 24) + 0x00010203); #define IXPPCIB_WRITE_CONF(sc, reg, val) \ ixp425_pci_conf_reg_write(sc, reg, val) /* Write Mapping registers PCI Configuration Registers */ /* Base Address 0 - 3 */ - IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR0, AHB_OFFSET + 0x00000000); - IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR1, AHB_OFFSET + 0x01000000); - IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR2, AHB_OFFSET + 0x02000000); - IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR3, AHB_OFFSET + 0x03000000); + IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR0, IXP425_AHB_OFFSET + 0x00000000); + IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR1, IXP425_AHB_OFFSET + 0x01000000); + IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR2, IXP425_AHB_OFFSET + 0x02000000); + IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR3, IXP425_AHB_OFFSET + 0x03000000); /* Base Address 4 */ IXPPCIB_WRITE_CONF(sc, PCI_MAPREG_BAR4, 0xffffffff); ==== //depot/projects/vap/sys/arm/xscale/ixp425/ixp425reg.h#4 (text+ko) ==== @@ -405,6 +405,8 @@ /* 0xf0011000 */ #define IXP425_PCI_SIZE IXP425_REG_SIZE /* 0x1000 */ +#define IXP425_AHB_OFFSET 0x00000000UL /* AHB bus */ + /* * Mapping registers of IXP425 PCI Configuration */
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