From 9e65f80ec9943790891a533dc8996d9d97a18cc6 Mon Sep 17 00:00:00 2001 From: Ramon Fried <rfried.dev@gmail.com> Date: Tue, 16 Jul 2019 22:04:32 +0300 Subject: [PATCH] net: macb: add support for faster clk rates add support for clock rates higher than 2.4Mhz Signed-off-by: Ramon Fried <rfried.dev@gmail.com> Reviewed-by: Anup Patel <anup.patel@wdc.com> Tested-by: Anup Patel <anup.patel@wdc.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com> --- drivers/net/macb.c | 6 +++++- drivers/net/macb.h | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 0032d4e000..0fed43bbe2 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -903,8 +903,12 @@ static u32 gem_mdc_clk_div(int id, struct macb_device *macb) config = GEM_BF(CLK, GEM_CLK_DIV48); else if (macb_hz < 160000000) config = GEM_BF(CLK, GEM_CLK_DIV64); - else + else if (macb_hz < 240000000) config = GEM_BF(CLK, GEM_CLK_DIV96); + else if (macb_hz < 320000000) + config = GEM_BF(CLK, GEM_CLK_DIV128); + else + config = GEM_BF(CLK, GEM_CLK_DIV224); return config; } diff --git a/drivers/net/macb.h b/drivers/net/macb.h index 8966c793a7..9b16383eba 100644 --- a/drivers/net/macb.h +++ b/drivers/net/macb.h @@ -613,6 +613,8 @@ #define GEM_CLK_DIV48 3 #define GEM_CLK_DIV64 4 #define GEM_CLK_DIV96 5 +#define GEM_CLK_DIV128 6 +#define GEM_CLK_DIV224 7 /* Constants for MAN register */ #define MACB_MAN_SOF 1 -- 2.39.5