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| author | Maciej W. Rozycki <macro@linux-mips.org> | 2006-10-23 13:53:17 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-12-02 00:12:01 -0500 |
| commit | b2e68aa337f950e4a8c893a82b95b1755309bc56 (patch) | |
| tree | 4f7696e09d08cb173306e68bfdc4dc98aa97ef0b /drivers/net/defxx.c | |
| parent | c3a9392e4f3b9d97803b067871d66bc143369dbf (diff) | |
| download | talos-obmc-linux-b2e68aa337f950e4a8c893a82b95b1755309bc56.tar.gz talos-obmc-linux-b2e68aa337f950e4a8c893a82b95b1755309bc56.zip | |
[PATCH] defxx: Big-endian hosts support
The PDQ DMA engine requires a different byte-swapping mode for big-endian
hosts; also the MAC address which is read from a register through PIO has
to be byte-swapped. These changes have been verified with DEFPA-DC (PCI)
boards and a Broadcom BCM91250A (MIPS CPU based) host.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/defxx.c')
| -rw-r--r-- | drivers/net/defxx.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/drivers/net/defxx.c b/drivers/net/defxx.c index 8f514cc0debd..dc3ab3b5c8cb 100644 --- a/drivers/net/defxx.c +++ b/drivers/net/defxx.c @@ -192,6 +192,7 @@ * 04 Aug 2003 macro Converted to the DMA API. * 14 Aug 2004 macro Fix device names reported. * 14 Jun 2005 macro Use irqreturn_t. + * 23 Oct 2006 macro Big-endian host support. */ /* Include files */ @@ -218,8 +219,8 @@ /* Version information string should be updated prior to each new release! */ #define DRV_NAME "defxx" -#define DRV_VERSION "v1.08" -#define DRV_RELDATE "2005/06/14" +#define DRV_VERSION "v1.09" +#define DRV_RELDATE "2006/10/23" static char version[] __devinitdata = DRV_NAME ": " DRV_VERSION " " DRV_RELDATE @@ -859,6 +860,7 @@ static int __devinit dfx_driver_init(struct net_device *dev, print_name); return(DFX_K_FAILURE); } + data = cpu_to_le32(data); memcpy(&bp->factory_mac_addr[0], &data, sizeof(u32)); if (dfx_hw_port_ctrl_req(bp, PI_PCTRL_M_MLA, PI_PDATA_A_MLA_K_HI, 0, @@ -867,6 +869,7 @@ static int __devinit dfx_driver_init(struct net_device *dev, print_name); return(DFX_K_FAILURE); } + data = cpu_to_le32(data); memcpy(&bp->factory_mac_addr[4], &data, sizeof(u16)); /* @@ -1085,27 +1088,23 @@ static int dfx_adap_init(DFX_board_t *bp, int get_buffers) } /* - * Set base address of Descriptor Block and bring adapter to DMA_AVAILABLE state + * Set the base address of Descriptor Block and bring adapter + * to DMA_AVAILABLE state. * - * Note: We also set the literal and data swapping requirements in this - * command. Since this driver presently runs on Intel platforms - * which are Little Endian, we'll tell the adapter to byte swap - * data only. This code will need to change when we support - * Big Endian systems (eg. PowerPC). + * Note: We also set the literal and data swapping requirements + * in this command. * - * Assumption: 32-bit physical address of descriptor block is 8Kbyte - * aligned. That is, bits 0-12 of the address must be zero. + * Assumption: 32-bit physical address of descriptor block + * is 8Kbyte aligned. */ - - if (dfx_hw_port_ctrl_req(bp, - PI_PCTRL_M_INIT, - (u32) (bp->descr_block_phys | PI_PDATA_A_INIT_M_BSWAP_DATA), - 0, - NULL) != DFX_K_SUCCESS) - { - printk("%s: Could not set descriptor block address!\n", bp->dev->name); - return(DFX_K_FAILURE); - } + if (dfx_hw_port_ctrl_req(bp, PI_PCTRL_M_INIT, + (u32)(bp->descr_block_phys | + PI_PDATA_A_INIT_M_BSWAP_INIT), + 0, NULL) != DFX_K_SUCCESS) { + printk("%s: Could not set descriptor block address!\n", + bp->dev->name); + return DFX_K_FAILURE; + } /* Set transmit flush timeout value */ |
