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| author |   Esben Haabendal <esben@geanix.com> | 2019-04-30 09:17:51 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-05-01 14:33:30 -0400 |
| commit | a3246dc41aa3c9d799478ccc8dac5d19c509a923 (patch) | |
| tree | f6020f1def70bab7247d33f9d3ed034b042da50b /drivers/net/ethernet/xilinx/ll_temac.h | |
| parent | net: ll_temac: Fix support for 64-bit platforms (diff) | |
| download | linux-dev-a3246dc41aa3c9d799478ccc8dac5d19c509a923.tar.xz linux-dev-a3246dc41aa3c9d799478ccc8dac5d19c509a923.zip | |
net: ll_temac: Add support for non-native register endianness
Replace the powerpc specific MMIO register access functions with the
generic big-endian mmio access functions, and add support for
little-endian access depending on configuration.
Big-endian access is maintained as the default, but little-endian can
be configured in device-tree binding or in platform data.
The temac_ior()/temac_iow() functions are replaced with macro wrappers
to avoid modifying existing code more than necessary.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/xilinx/ll_temac.h')
| -rw-r--r-- | drivers/net/ethernet/xilinx/ll_temac.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/net/ethernet/xilinx/ll_temac.h b/drivers/net/ethernet/xilinx/ll_temac.h index e338b4fa3c60..23d8dd5330f8 100644 --- a/drivers/net/ethernet/xilinx/ll_temac.h +++ b/drivers/net/ethernet/xilinx/ll_temac.h @@ -347,8 +347,10 @@ struct temac_local { #ifdef CONFIG_PPC_DCR dcr_host_t sdma_dcrs; #endif - u32 (*dma_in)(struct temac_local *, int); - void (*dma_out)(struct temac_local *, int, u32); + u32 (*temac_ior)(struct temac_local *lp, int offset); + void (*temac_iow)(struct temac_local *lp, int offset, u32 value); + u32 (*dma_in)(struct temac_local *lp, int reg); + void (*dma_out)(struct temac_local *lp, int reg, u32 value); int tx_irq; int rx_irq; @@ -372,9 +374,11 @@ struct temac_local { int rx_bd_ci; }; +/* Wrappers for temac_ior()/temac_iow() function pointers above */ +#define temac_ior(lp, o) ((lp)->temac_ior(lp, o)) +#define temac_iow(lp, o, v) ((lp)->temac_iow(lp, o, v)) + /* xilinx_temac.c */ -u32 temac_ior(struct temac_local *lp, int offset); -void temac_iow(struct temac_local *lp, int offset, u32 value); int temac_indirect_busywait(struct temac_local *lp); u32 temac_indirect_in32(struct temac_local *lp, int reg); void temac_indirect_out32(struct temac_local *lp, int reg, u32 value); |