diff options
Diffstat (limited to 'arch/mips/alchemy')
| -rw-r--r-- | arch/mips/alchemy/devboards/db1300.c | 3 | ||||
| -rw-r--r-- | arch/mips/alchemy/devboards/db1550.c | 9 |
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c index ef93ee3..e476ae9 100644 --- a/arch/mips/alchemy/devboards/db1300.c +++ b/arch/mips/alchemy/devboards/db1300.c @@ -762,9 +762,10 @@ int __init db1300_dev_setup(void) __raw_writel(PSC_SEL_CLK_SERCLK, (void __iomem *)KSEG1ADDR(AU1300_PSC2_PHYS_ADDR) + PSC_SEL_OFFSET); wmb(); - /* I2C uses internal 48MHz EXTCLK1 */ + /* I2C driver wants 50MHz, get as close as possible */ c = clk_get(NULL, "psc3_intclk"); if (!IS_ERR(c)) { + clk_set_rate(c, 50000000); clk_prepare_enable(c); clk_put(c); } diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c index 7e89936..0fd5177 100644 --- a/arch/mips/alchemy/devboards/db1550.c +++ b/arch/mips/alchemy/devboards/db1550.c @@ -34,12 +34,9 @@ static void __init db1550_hw_setup(void) void __iomem *base; unsigned long v; - /* complete SPI setup: link psc0_intclk to a 48MHz source, - * and assign GPIO16 to PSC0_SYNC1 (SPI cs# line) as well as PSC1_SYNC - * for AC97 on PB1550. + /* complete pin setup: assign GPIO16 to PSC0_SYNC1 (SPI cs# line) + * as well as PSC1_SYNC for AC97 on PB1550. */ - v = alchemy_rdsys(AU1000_SYS_CLKSRC); - alchemy_wrsys(v | 0x000001e0, AU1000_SYS_CLKSRC); v = alchemy_rdsys(AU1000_SYS_PINFUNC); alchemy_wrsys(v | 1 | SYS_PF_PSC1_S1, AU1000_SYS_PINFUNC); @@ -586,11 +583,13 @@ int __init db1550_dev_setup(void) c = clk_get(NULL, "psc0_intclk"); if (!IS_ERR(c)) { + clk_set_rate(c, 50000000); clk_prepare_enable(c); clk_put(c); } c = clk_get(NULL, "psc2_intclk"); if (!IS_ERR(c)) { + clk_set_rate(c, db1550_spi_platdata.mainclk_hz); clk_prepare_enable(c); clk_put(c); } |