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linux-next/drivers/net/phy/mdio-cavium.h
Nathan Chancellor b8fb640643 net: mdio-octeon: Fix Kconfig warnings and build errors
After commit 171a9bae68 ("staging/octeon: Allow test build on
!MIPS"), the following combination of configs cause a few Kconfig
warnings and build errors (distilled from arm allyesconfig and Randy's
randconfig builds):

    CONFIG_NETDEVICES=y
    CONFIG_STAGING=y
    CONFIG_COMPILE_TEST=y

and CONFIG_OCTEON_ETHERNET as either a module or built-in.

WARNING: unmet direct dependencies detected for MDIO_OCTEON
  Depends on [n]: NETDEVICES [=y] && MDIO_DEVICE [=y] && MDIO_BUS [=y]
&& 64BIT [=n] && HAS_IOMEM [=y] && OF_MDIO [=n]
  Selected by [y]:
  - OCTEON_ETHERNET [=y] && STAGING [=y] && (CAVIUM_OCTEON_SOC ||
COMPILE_TEST [=y]) && NETDEVICES [=y]

In file included from ../drivers/net/phy/mdio-octeon.c:14:
../drivers/net/phy/mdio-cavium.h:111:36: error: implicit declaration of
function ‘writeq’; did you mean ‘writel’?
[-Werror=implicit-function-declaration]
  111 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
      |                                    ^~~~~~

CONFIG_64BIT is not strictly necessary if the proper readq/writeq
definitions are included from io-64-nonatomic-lo-hi.h.

CONFIG_OF_MDIO is not needed when CONFIG_COMPILE_TEST is enabled because
of commit f9dc9ac516 ("of/mdio: Add dummy functions in of_mdio.h.").

Fixes: 171a9bae68 ("staging/octeon: Allow test build on !MIPS")
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Mark Brown <broonie@kernel.org>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-08-06 14:11:08 -07:00

119 lines
2.6 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2009-2016 Cavium, Inc.
*/
enum cavium_mdiobus_mode {
UNINIT = 0,
C22,
C45
};
#define SMI_CMD 0x0
#define SMI_WR_DAT 0x8
#define SMI_RD_DAT 0x10
#define SMI_CLK 0x18
#define SMI_EN 0x20
#ifdef __BIG_ENDIAN_BITFIELD
#define OCT_MDIO_BITFIELD_FIELD(field, more) \
field; \
more
#else
#define OCT_MDIO_BITFIELD_FIELD(field, more) \
more \
field;
#endif
union cvmx_smix_clk {
u64 u64;
struct cvmx_smix_clk_s {
OCT_MDIO_BITFIELD_FIELD(u64 reserved_25_63:39,
OCT_MDIO_BITFIELD_FIELD(u64 mode:1,
OCT_MDIO_BITFIELD_FIELD(u64 reserved_21_23:3,
OCT_MDIO_BITFIELD_FIELD(u64 sample_hi:5,
OCT_MDIO_BITFIELD_FIELD(u64 sample_mode:1,
OCT_MDIO_BITFIELD_FIELD(u64 reserved_14_14:1,
OCT_MDIO_BITFIELD_FIELD(u64 clk_idle:1,
OCT_MDIO_BITFIELD_FIELD(u64 preamble:1,
OCT_MDIO_BITFIELD_FIELD(u64 sample:4,
OCT_MDIO_BITFIELD_FIELD(u64 phase:8,
;))))))))))
} s;
};
union cvmx_smix_cmd {
u64 u64;
struct cvmx_smix_cmd_s {
OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46,
OCT_MDIO_BITFIELD_FIELD(u64 phy_op:2,
OCT_MDIO_BITFIELD_FIELD(u64 reserved_13_15:3,
OCT_MDIO_BITFIELD_FIELD(u64 phy_adr:5,
OCT_MDIO_BITFIELD_FIELD(u64 reserved_5_7:3,
OCT_MDIO_BITFIELD_FIELD(u64 reg_adr:5,
;))))))
} s;
};
union cvmx_smix_en {
u64 u64;
struct cvmx_smix_en_s {
OCT_MDIO_BITFIELD_FIELD(u64 reserved_1_63:63,
OCT_MDIO_BITFIELD_FIELD(u64 en:1,
;))
} s;
};
union cvmx_smix_rd_dat {
u64 u64;
struct cvmx_smix_rd_dat_s {
OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46,
OCT_MDIO_BITFIELD_FIELD(u64 pending:1,
OCT_MDIO_BITFIELD_FIELD(u64 val:1,
OCT_MDIO_BITFIELD_FIELD(u64 dat:16,
;))))
} s;
};
union cvmx_smix_wr_dat {
u64 u64;
struct cvmx_smix_wr_dat_s {
OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46,
OCT_MDIO_BITFIELD_FIELD(u64 pending:1,
OCT_MDIO_BITFIELD_FIELD(u64 val:1,
OCT_MDIO_BITFIELD_FIELD(u64 dat:16,
;))))
} s;
};
struct cavium_mdiobus {
struct mii_bus *mii_bus;
u64 register_base;
enum cavium_mdiobus_mode mode;
};
#ifdef CONFIG_CAVIUM_OCTEON_SOC
#include <asm/octeon/octeon.h>
static inline void oct_mdio_writeq(u64 val, u64 addr)
{
cvmx_write_csr(addr, val);
}
static inline u64 oct_mdio_readq(u64 addr)
{
return cvmx_read_csr(addr);
}
#else
#include <linux/io-64-nonatomic-lo-hi.h>
#define oct_mdio_writeq(val, addr) writeq(val, (void *)addr)
#define oct_mdio_readq(addr) readq((void *)addr)
#endif
int cavium_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum);
int cavium_mdiobus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val);