diff options
Diffstat (limited to 'target/linux/ifxmips/files/arch/mips/ifxmips/cgu.c')
| -rw-r--r-- | target/linux/ifxmips/files/arch/mips/ifxmips/cgu.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/target/linux/ifxmips/files/arch/mips/ifxmips/cgu.c b/target/linux/ifxmips/files/arch/mips/ifxmips/cgu.c index 3dec89e7c1..d1e2ff4fad 100644 --- a/target/linux/ifxmips/files/arch/mips/ifxmips/cgu.c +++ b/target/linux/ifxmips/files/arch/mips/ifxmips/cgu.c @@ -413,3 +413,19 @@ cgu_get_clockout(int clkout) } return 0; } + +void cgu_setup_pci_clk(int external_clock) +{ + //set clock to 33Mhz + ifxmips_w32(ifxmips_r32(IFXMIPS_CGU_IFCCR) & ~0xf00000, IFXMIPS_CGU_IFCCR); + ifxmips_w32(ifxmips_r32(IFXMIPS_CGU_IFCCR) | 0x800000, IFXMIPS_CGU_IFCCR); + // internal or external clock + if(external_clock) + { + ifxmips_w32(ifxmips_r32(IFXMIPS_CGU_IFCCR) & ~ (1 << 16), IFXMIPS_CGU_IFCCR); + ifxmips_w32((1 << 30), IFXMIPS_CGU_PCICR); + } else { + ifxmips_w32(ifxmips_r32(IFXMIPS_CGU_IFCCR) | (1 << 16), IFXMIPS_CGU_IFCCR); + ifxmips_w32((1 << 31) | (1 << 30), IFXMIPS_CGU_PCICR); + } +} |