diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-imx/imx8m/clock_imx8mm.c | 49 | ||||
| -rw-r--r-- | arch/arm/mach-imx/imx8m/clock_slice.c | 25 |
2 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c index c423ac0058..d123ba1625 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 diff --git a/arch/arm/mach-imx/imx8m/clock_slice.c b/arch/arm/mach-imx/imx8m/clock_slice.c index 8b7a4dad65..9e84e8d5b1 100644 --- a/arch/arm/mach-imx/imx8m/clock_slice.c +++ b/arch/arm/mach-imx/imx8m/clock_slice.c @@ -482,6 +482,16 @@ static struct clk_root_map root_array[] = { SYSTEM_PLL2_1000M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL1_400M_CLK, AUDIO_PLL1_CLK, SYSTEM_PLL3_CLK} }, + {MAIN_AXI_CLK_ROOT, BUS_CLOCK_SLICE, 0, + {OSC_24M_CLK, SYSTEM_PLL2_333M_CLK, SYSTEM_PLL1_800M_CLK, + SYSTEM_PLL2_250M_CLK, SYSTEM_PLL2_1000M_CLK, + AUDIO_PLL1_CLK, VIDEO_PLL_CLK, SYSTEM_PLL1_100M_CLK} + }, + {ENET_AXI_CLK_ROOT, BUS_CLOCK_SLICE, 1, + {OSC_24M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK, + SYSTEM_PLL2_250M_CLK, SYSTEM_PLL2_200M_CLK, + AUDIO_PLL1_CLK, VIDEO_PLL_CLK, SYSTEM_PLL3_CLK} + }, {NAND_USDHC_BUS_CLK_ROOT, BUS_CLOCK_SLICE, 2, {OSC_24M_CLK, SYSTEM_PLL1_266M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL1_133M_CLK, @@ -509,6 +519,21 @@ static struct clk_root_map root_array[] = { SYSTEM_PLL1_160M_CLK, SYSTEM_PLL1_800M_CLK, SYSTEM_PLL3_CLK, SYSTEM_PLL2_250M_CLK, AUDIO_PLL2_CLK} }, + {ENET_REF_CLK_ROOT, IP_CLOCK_SLICE, 19, + {OSC_24M_CLK, SYSTEM_PLL2_125M_CLK, SYSTEM_PLL2_50M_CLK, + SYSTEM_PLL2_100M_CLK, SYSTEM_PLL1_160M_CLK, + AUDIO_PLL1_CLK, VIDEO_PLL_CLK, EXT_CLK_4} + }, + {ENET_TIMER_CLK_ROOT, IP_CLOCK_SLICE, 20, + {OSC_24M_CLK, SYSTEM_PLL2_100M_CLK, AUDIO_PLL1_CLK, + EXT_CLK_1, EXT_CLK_2, EXT_CLK_3, EXT_CLK_4, + VIDEO_PLL_CLK} + }, + {ENET_PHY_REF_CLK_ROOT, IP_CLOCK_SLICE, 21, + {OSC_24M_CLK, SYSTEM_PLL2_50M_CLK, SYSTEM_PLL2_125M_CLK, + SYSTEM_PLL2_200M_CLK, SYSTEM_PLL2_500M_CLK, + AUDIO_PLL1_CLK, VIDEO_PLL_CLK, AUDIO_PLL2_CLK} + }, {UART1_CLK_ROOT, IP_CLOCK_SLICE, 30, {OSC_24M_CLK, SYSTEM_PLL1_80M_CLK, SYSTEM_PLL2_200M_CLK, SYSTEM_PLL2_100M_CLK, SYSTEM_PLL3_CLK, |