diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2015-07-24 21:23:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-27 11:10:29 +0300 |
| commit | f2ce8a9e48385f444389e75cfe293637c3eb5410 (patch) | |
| tree | 7226bddfdacdaaa762b2403a502c77bc41c40f17 /drivers/net/ethernet/cadence/macb.h | |
| parent | dfbafc995304ebb9a9b03f65083e6e9cea143b20 (diff) | |
| download | linux-f2ce8a9e48385f444389e75cfe293637c3eb5410.tar.xz | |
net/macb: improve big endian CPU support
The commit a50dad355a53 (net: macb: Add big endian CPU support) converted I/O
accessors to readl_relaxed() and writel_relaxed() and consequentially broke
MACB driver on AVR32 platforms such as ATNGW100.
This patch improves I/O access by checking endiannes first and use the
corresponding methods.
Fixes: a50dad355a53 (net: macb: Add big endian CPU support)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cadence/macb.h')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb.h | 28 |
1 files changed, 11 insertions, 17 deletions
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index d74655993d4b..f245340f4dde 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -429,18 +429,12 @@ | GEM_BF(name, value)) /* Register access macros */ -#define macb_readl(port,reg) \ - readl_relaxed((port)->regs + MACB_##reg) -#define macb_writel(port,reg,value) \ - writel_relaxed((value), (port)->regs + MACB_##reg) -#define gem_readl(port, reg) \ - readl_relaxed((port)->regs + GEM_##reg) -#define gem_writel(port, reg, value) \ - writel_relaxed((value), (port)->regs + GEM_##reg) -#define queue_readl(queue, reg) \ - readl_relaxed((queue)->bp->regs + (queue)->reg) -#define queue_writel(queue, reg, value) \ - writel_relaxed((value), (queue)->bp->regs + (queue)->reg) +#define macb_readl(port, reg) (port)->readl((port), MACB_##reg) +#define macb_writel(port, reg, value) (port)->writel((port), MACB_##reg, (value)) +#define gem_readl(port, reg) (port)->readl((port), GEM_##reg) +#define gem_writel(port, reg, value) (port)->writel((port), GEM_##reg, (value)) +#define queue_readl(queue, reg) (queue)->bp->readl((queue)->bp, (queue)->reg) +#define queue_writel(queue, reg, value) (queue)->bp->writel((queue)->bp, (queue)->reg, (value)) /* Conditional GEM/MACB macros. These perform the operation to the correct * register dependent on whether the device is a GEM or a MACB. For registers @@ -785,6 +779,11 @@ struct macb_queue { struct macb { void __iomem *regs; + bool native_io; + + /* hardware IO accessors */ + u32 (*readl)(struct macb *bp, int offset); + void (*writel)(struct macb *bp, int offset, u32 value); unsigned int rx_tail; unsigned int rx_prepared_head; @@ -843,9 +842,4 @@ static inline bool macb_is_gem(struct macb *bp) return !!(bp->caps & MACB_CAPS_MACB_IS_GEM); } -static inline bool macb_is_gem_hw(void __iomem *addr) -{ - return !!(MACB_BFEXT(IDNUM, readl_relaxed(addr + MACB_MID)) >= 0x2); -} - #endif /* _MACB_H */ |