diff options
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/cpm2.c | 34 |
1 files changed, 4 insertions, 30 deletions
diff --git a/arch/powerpc/sysdev/cpm2.c b/arch/powerpc/sysdev/cpm2.c index 9311778a508..f1c3395633b 100644 --- a/arch/powerpc/sysdev/cpm2.c +++ b/arch/powerpc/sysdev/cpm2.c @@ -115,16 +115,10 @@ EXPORT_SYMBOL(cpm_command); * Baud rate clocks are zero-based in the driver code (as that maps * to port numbers). Documentation uses 1-based numbering. */ -#define BRG_INT_CLK (get_brgfreq()) -#define BRG_UART_CLK (BRG_INT_CLK/16) - -/* This function is used by UARTS, or anything else that uses a 16x - * oversampled clock. - */ -void -cpm_setbrg(uint brg, uint rate) +void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src) { u32 __iomem *bp; + u32 val; /* This is good enough to get SMCs running..... */ @@ -135,34 +129,14 @@ cpm_setbrg(uint brg, uint rate) brg -= 4; } bp += brg; - out_be32(bp, (((BRG_UART_CLK / rate) - 1) << 1) | CPM_BRG_EN); - - cpm2_unmap(bp); -} - -/* This function is used to set high speed synchronous baud rate - * clocks. - */ -void -cpm2_fastbrg(uint brg, uint rate, int div16) -{ - u32 __iomem *bp; - u32 val; - - if (brg < 4) { - bp = cpm2_map_size(im_brgc1, 16); - } else { - bp = cpm2_map_size(im_brgc5, 16); - brg -= 4; - } - bp += brg; - val = ((BRG_INT_CLK / rate) << 1) | CPM_BRG_EN; + val = (((clk / rate) - 1) << 1) | CPM_BRG_EN | src; if (div16) val |= CPM_BRG_DIV16; out_be32(bp, val); cpm2_unmap(bp); } +EXPORT_SYMBOL(__cpm2_setbrg); int cpm2_clk_setup(enum cpm_clk_target target, int clock, int mode) { |