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authorGreg Ungerer <gerg@uclinux.org>2011-12-24 01:23:35 +1000
committerGreg Ungerer <gerg@uclinux.org>2012-03-05 09:43:08 +1000
commit55148f6f886a1b77dba1a5c3169208606827b9db (patch)
tree17e77390b22a390a6fe9897fe0f1b086319097ae /arch/m68k/platform/coldfire
parent0d2fe946474196e586e492d9e9b381e184c774ea (diff)
downloadop-kernel-dev-55148f6f886a1b77dba1a5c3169208606827b9db.zip
op-kernel-dev-55148f6f886a1b77dba1a5c3169208606827b9db.tar.gz
m68knommu: merge common ColdFire UART IRQ setup
Some ColdFire CPU UART hardware modules can configure the IRQ they use. Currently the same setup code is duplicated in the init code for each of these ColdFire CPUs. Merge all this code to a single instance. Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/platform/coldfire')
-rw-r--r--arch/m68k/platform/coldfire/device.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/device.c b/arch/m68k/platform/coldfire/device.c
index c950690..b930192 100644
--- a/arch/m68k/platform/coldfire/device.c
+++ b/arch/m68k/platform/coldfire/device.c
@@ -50,8 +50,28 @@ static struct platform_device *mcf_devices[] __initdata = {
&mcf_uart,
};
+
+/*
+ * Some ColdFire UARTs let you set the IRQ line to use.
+ */
+static void __init mcf_uart_set_irq(void)
+{
+#ifdef MCFUART_UIVR
+ /* UART0 interrupt setup */
+ writeb(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);
+
+ /* UART1 interrupt setup */
+ writeb(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);
+#endif
+}
+
static int __init mcf_init_devices(void)
{
+ mcf_uart_set_irq();
platform_add_devices(mcf_devices, ARRAY_SIZE(mcf_devices));
return 0;
}
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