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Staging: et131x: Another typedef solely used to write 0 to a register

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Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2009-11-18 14:07:29 +00:00 committed by Greg Kroah-Hartman
parent 42a03e98d1
commit cfc52eb676
2 changed files with 9 additions and 24 deletions
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20
drivers/staging/et131x/et1310_address_map.h
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@ -803,21 +803,11 @@ typedef union _TXMAC_ERR_INT_t {
/*
* structure for error interrupt reg in txmac address map
* located at address 0x3020
*
* 31-2: unused
* 1: bp_req
* 0: bp_xonxoff
*/
typedef union _TXMAC_CP_CTRL_t {
u32 value;
struct {
#ifdef _BIT_FIELDS_HTOL
u32 unused:30; /* bits 2-31 */
u32 bp_req:1; /* bit 1 */
u32 bp_xonxoff:1; /* bit 0 */
#else
u32 bp_xonxoff:1; /* bit 0 */
u32 bp_req:1; /* bit 1 */
u32 unused:30; /* bits 2-31 */
#endif
} bits;
} TXMAC_BP_CTRL_t, *PTXMAC_BP_CTRL_t;
/*
* Tx MAC Module of JAGCore Address Mapping
@ -831,7 +821,7 @@ typedef struct _TXMAC_t { /* Location: */
u32 tx_test; /* 0x3014 */
TXMAC_ERR_t err; /* 0x3018 */
TXMAC_ERR_INT_t err_int; /* 0x301C */
TXMAC_BP_CTRL_t bp_ctrl; /* 0x3020 */
u32 bp_ctrl; /* 0x3020 */
} TXMAC_t, *PTXMAC_t;
/* END OF TXMAC REGISTER ADDRESS MAP */

13
drivers/staging/et131x/et131x_isr.c
View File

@ -287,17 +287,12 @@ void et131x_isr_handler(struct work_struct *work)
u32 pm_csr;
/* Tell the device to send a pause packet via
* the back pressure register
* the back pressure register (bp req and
* bp xon/xoff)
*/
pm_csr = readl(&iomem->global.pm_csr);
if ((pm_csr & ET_PM_PHY_SW_COMA) == 0) {
TXMAC_BP_CTRL_t bp_ctrl = { 0 };
bp_ctrl.bits.bp_req = 1;
bp_ctrl.bits.bp_xonxoff = 1;
writel(bp_ctrl.value,
&iomem->txmac.bp_ctrl.value);
}
if ((pm_csr & ET_PM_PHY_SW_COMA) == 0)
writel(3, &iomem->txmac.bp_ctrl);
}
}