m68knommu: added dm9000 support
RFC PATCH v3 1/1 m68knommu: added dm9000 support
This patch allows to use the dm9000 network chip with a m68knommu big-endian cpu. From the data bus circuit-wiring point of view, the cpu data bus connected to the dm9000 chip should be hardware-byte-swapped, crossing the bytes wires (D0:7 to D24:31, etc.).
In anyway, has been also added an option to swap the bytes in the driver, if some cpu has been wired straight D0:D31 to dm9000.
Signed-off-by Angelo Dureghello <[email protected]>
---
drivers/net/Kconfig renamed from drivers/net/Kconfig.orig +9 -1
@@ -960,7 +960,7 @@ config TI_DAVINCI_EMAC config DM9000 tristate "DM9000 support" - depends on ARM || BLACKFIN || MIPS + depends on COLDFIRE || ARM || BLACKFIN || MIPS select CRC32 select MII ---help---
@@ -986,6 +986,14 @@ config DM9000_FORCE_SIMPLE_PHY_POLL costly MII PHY reads. Note, this will not work if the chip is operating with an external PHY. +config DM9000_32BIT_SW_SWAP + bool "Software byte swap for 32 bit data bus" + depends on DM9000 && COLDFIRE + ---help--- + This configuration allows to swap data bytes from the dm9000 + driver itself, when the big endian cpu is wired straight to + the dm9000 32 bit data bus. + config ENC28J60 tristate "ENC28J60 support" depends on EXPERIMENTAL && SPI && NET_ETHERNET
drivers/net/dm9000.c renamed from drivers/net/dm9000.c.orig +102 -7
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arch/m68k/include/asm/io_no.h renamed from arch/m68k/include/asm/io_no.h.orig +84 -0
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