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[PATCH] powerpc: legacy_serial loop cleanup 

We only ever execute the loop once, so let's move it to a function
making it more readable.  Cleanup patch, no functional change.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Neuling 2006-03-26 10:07:35 +10:00 committed by Paul Mackerras
parent b8c7b976a5
commit 37a801c776
1 changed files with 19 additions and 19 deletions
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38
arch/powerpc/kernel/legacy_serial.c
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@ -236,6 +236,23 @@ static int __init add_legacy_pci_port(struct device_node *np,
} }
#endif #endif
static void __init setup_legacy_serial_console(int console)
{
struct legacy_serial_info *info =
&legacy_serial_infos[console];
void __iomem *addr;
if (info->taddr == 0)
return;
addr = ioremap(info->taddr, 0x1000);
if (addr == NULL)
return;
if (info->speed == 0)
info->speed = udbg_probe_uart_speed(addr, info->clock);
DBG("default console speed = %d\n", info->speed);
udbg_init_uart(addr, info->speed, info->clock);
}
/* /*
* This is called very early, as part of setup_system() or eventually * This is called very early, as part of setup_system() or eventually
* setup_arch(), basically before anything else in this file. This function * setup_arch(), basically before anything else in this file. This function
@ -318,25 +335,8 @@ void __init find_legacy_serial_ports(void)
#endif #endif
DBG("legacy_serial_console = %d\n", legacy_serial_console); DBG("legacy_serial_console = %d\n", legacy_serial_console);
if (legacy_serial_console >= 0)
/* udbg is 64 bits only for now, that will change soon though ... */ setup_legacy_serial_console(legacy_serial_console);
while (legacy_serial_console >= 0) {
struct legacy_serial_info *info =
&legacy_serial_infos[legacy_serial_console];
void __iomem *addr;
if (info->taddr == 0)
break;
addr = ioremap(info->taddr, 0x1000);
if (addr == NULL)
break;
if (info->speed == 0)
info->speed = udbg_probe_uart_speed(addr, info->clock);
DBG("default console speed = %d\n", info->speed);
udbg_init_uart(addr, info->speed, info->clock);
break;
}
DBG(" <- find_legacy_serial_port()\n"); DBG(" <- find_legacy_serial_port()\n");
} }