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m68knommu: simplify the 528x UART setup code

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Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Greg Ungerer 2011-12-24 01:00:48 +10:00
parent 1eb1391638
commit cae82a836d
1 changed files with 4 additions and 18 deletions
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22
arch/m68k/platform/528x/config.c
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@ -218,28 +218,14 @@ static struct platform_device *m528x_devices[] __initdata = {
/***************************************************************************/
static void __init m528x_uart_init_line(int line, int irq)
static void __init m528x_uarts_init(void)
{
u8 port;
if ((line < 0) || (line > 2))
return;
/* make sure PUAPAR is set for UART0 and UART1 */
if (line < 2) {
port = readb(MCF5282_GPIO_PUAPAR);
port |= (0x03 << (line * 2));
writeb(port, MCF5282_GPIO_PUAPAR);
}
}
static void __init m528x_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m528x_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m528x_uart_init_line(line, m528x_uart_platform[line].irq);
port = readb(MCF5282_GPIO_PUAPAR);
port |= 0x03 | (0x03 << 2);
writeb(port, MCF5282_GPIO_PUAPAR);
}
/***************************************************************************/