diff options
| author | Marek Vasut <marex@denx.de> | 2020-04-24 21:37:26 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2020-05-01 13:46:21 +0200 |
| commit | 126dcc925d11bab93ad7c367e14a74f10d53061b (patch) | |
| tree | 7d1226054d4b44abec2b13186e7dc94318366b1d /arch/arm/mach-imx/imx8m/clock_imx8mm.c | |
| parent | 78021b63373de32335bd204471d6cb7c7e18bc52 (diff) | |
ARM: imx: imx8mm: Add missing clock entries for FEC clock
All the FEC ethernet clock entries for iMX8MM are missing, while they
are already present on iMX8MQ. Fill in the nodes on iMX8MM, as the FEC
ethernet gets bogus clock information otherwise which makes ethernet
inoperable.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Diffstat (limited to 'arch/arm/mach-imx/imx8m/clock_imx8mm.c')
| -rw-r--r-- | arch/arm/mach-imx/imx8m/clock_imx8mm.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c index c423ac0058d..d123ba1625b 100644 --- a/arch/arm/mach-imx/imx8m/clock_imx8mm.c +++ b/arch/arm/mach-imx/imx8m/clock_imx8mm.c @@ -578,3 +578,52 @@ u32 mxc_get_clock(enum mxc_clock clk) return 0; } + +#ifdef CONFIG_FEC_MXC +int set_clk_enet(enum enet_freq type) +{ + u32 target; + u32 enet1_ref; + + switch (type) { + case ENET_125MHZ: + enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_125M_CLK; + break; + case ENET_50MHZ: + enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_50M_CLK; + break; + case ENET_25MHZ: + enet1_ref = ENET1_REF_CLK_ROOT_FROM_PLL_ENET_MAIN_25M_CLK; + break; + default: + return -EINVAL; + } + + /* disable the clock first */ + clock_enable(CCGR_ENET1, 0); + clock_enable(CCGR_SIM_ENET, 0); + + /* set enet axi clock 266Mhz */ + target = CLK_ROOT_ON | ENET_AXI_CLK_ROOT_FROM_SYS1_PLL_266M | + CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | + CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1); + clock_set_target_val(ENET_AXI_CLK_ROOT, target); + + target = CLK_ROOT_ON | enet1_ref | + CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | + CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV1); + clock_set_target_val(ENET_REF_CLK_ROOT, target); + + target = CLK_ROOT_ON | + ENET1_TIME_CLK_ROOT_FROM_PLL_ENET_MAIN_100M_CLK | + CLK_ROOT_PRE_DIV(CLK_ROOT_PRE_DIV1) | + CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4); + clock_set_target_val(ENET_TIMER_CLK_ROOT, target); + + /* enable clock */ + clock_enable(CCGR_SIM_ENET, 1); + clock_enable(CCGR_ENET1, 1); + + return 0; +} +#endif |