diff options
Diffstat (limited to 'src/mainboard/pcengines/apu1/mainboard.c')
| -rw-r--r-- | src/mainboard/pcengines/apu1/mainboard.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/mainboard/pcengines/apu1/mainboard.c b/src/mainboard/pcengines/apu1/mainboard.c index f80f24ec87..82cf9921a5 100644 --- a/src/mainboard/pcengines/apu1/mainboard.c +++ b/src/mainboard/pcengines/apu1/mainboard.c @@ -183,6 +183,18 @@ static void mainboard_enable(device_t dev) config_gpio_mux(); + /* Power off unused clock pins of GPP PCIe devices */ + u8 *misc_mem_clk_cntrl = (u8 *)(ACPI_MMIO_BASE + MISC_BASE); + /* GPP CLK0-2 are connected to the 3 ethernet chips + * GPP CLK3-4 are connected to the miniPCIe slots */ + write8(misc_mem_clk_cntrl + 0, 0xFF); + write8(misc_mem_clk_cntrl + 1, 0xFF); + /* GPP CLK5 is only connected to test pads -> disable */ + write8(misc_mem_clk_cntrl + 2, 0x0F); + /* disable unconnected GPP CLK6-8 and SLT_GFX_CLK */ + write8(misc_mem_clk_cntrl + 3, 0x00); + write8(misc_mem_clk_cntrl + 4, 0x00); + /* Initialize the PIRQ data structures for consumption */ pirq_setup(); } |