From 255b59ad0db213d693028e52a4b69a98f2381db7 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Wed, 26 Jun 2019 01:43:47 +0200 Subject: net: dsa: microchip: Factor out regmap config generation into common header The regmap config tables are rather similar for various generations of the KSZ8xxx/KSZ9xxx switches. Introduce a macro which allows generating those tables without duplication. Note that $regalign parameter is not used right now, but will be used in KSZ87xx series switches. Signed-off-by: Marek Vasut Cc: Andrew Lunn Cc: Florian Fainelli Cc: Tristram Ha Cc: Woojung Huh Signed-off-by: David S. Miller --- drivers/net/dsa/microchip/ksz_common.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'drivers/net/dsa/microchip/ksz_common.h') diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h index c3871ed9b097..745318424f71 100644 --- a/drivers/net/dsa/microchip/ksz_common.h +++ b/drivers/net/dsa/microchip/ksz_common.h @@ -133,4 +133,36 @@ static inline u32 ksz_pread32_poll(struct ksz_poll_ctx *ctx) return data; } +/* Regmap tables generation */ +#define KSZ_SPI_OP_RD 3 +#define KSZ_SPI_OP_WR 2 + +#define KSZ_SPI_OP_FLAG_MASK(opcode, swp, regbits, regpad) \ + swab##swp((opcode) << ((regbits) + (regpad))) + +#define KSZ_REGMAP_ENTRY(width, swp, regbits, regpad, regalign) \ + { \ + .val_bits = (width), \ + .reg_stride = (width) / 8, \ + .reg_bits = (regbits) + (regalign), \ + .pad_bits = (regpad), \ + .max_register = BIT(regbits) - 1, \ + .cache_type = REGCACHE_NONE, \ + .read_flag_mask = \ + KSZ_SPI_OP_FLAG_MASK(KSZ_SPI_OP_RD, swp, \ + regbits, regpad), \ + .write_flag_mask = \ + KSZ_SPI_OP_FLAG_MASK(KSZ_SPI_OP_WR, swp, \ + regbits, regpad), \ + .reg_format_endian = REGMAP_ENDIAN_BIG, \ + .val_format_endian = REGMAP_ENDIAN_BIG \ + } + +#define KSZ_REGMAP_TABLE(ksz, swp, regbits, regpad, regalign) \ + static const struct regmap_config ksz##_regmap_config[] = { \ + KSZ_REGMAP_ENTRY(8, swp, (regbits), (regpad), (regalign)), \ + KSZ_REGMAP_ENTRY(16, swp, (regbits), (regpad), (regalign)), \ + KSZ_REGMAP_ENTRY(32, swp, (regbits), (regpad), (regalign)), \ + } + #endif -- cgit v1.2.3