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m68knommu: simplify the 5206 UART setup code 

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 00:49:12 +10:00
parent bbbeeaf2f7
commit a579748dc1
1 changed files with 8 additions and 17 deletions
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25
arch/m68k/platform/5206/config.c
View File

@ -44,26 +44,17 @@ static struct platform_device *m5206_devices[] __initdata = {
/***************************************************************************/ /***************************************************************************/
static void __init m5206_uart_init_line(int line, int irq)
{
if (line == 0) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
writeb(irq, MCFUART_BASE0 + MCFUART_UIVR);
mcf_mapirq2imr(irq, MCFINTC_UART0);
} else if (line == 1) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
writeb(irq, MCFUART_BASE1 + MCFUART_UIVR);
mcf_mapirq2imr(irq, MCFINTC_UART1);
}
}
static void __init m5206_uarts_init(void) static void __init m5206_uarts_init(void)
{ {
const int nrlines = ARRAY_SIZE(m5206_uart_platform); /* UART0 interrupt setup */
int line; writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
writeb(MCF_IRQ_UART0, MCFUART_BASE0 + MCFUART_UIVR);
mcf_mapirq2imr(MCF_IRQ_UART0, MCFINTC_UART0);
for (line = 0; (line < nrlines); line++) /* UART1 interrupt setup */
m5206_uart_init_line(line, m5206_uart_platform[line].irq); writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
writeb(MCF_IRQ_UART1, MCFUART_BASE1 + MCFUART_UIVR);
mcf_mapirq2imr(MCF_IRQ_UART1, MCFINTC_UART1);
} }
/***************************************************************************/ /***************************************************************************/