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| author | Greg Ungerer <gerg@uclinux.org> | 2011-12-24 01:23:35 +1000 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2012-03-05 09:43:08 +1000 |
| commit | 55148f6f886a1b77dba1a5c3169208606827b9db (patch) | |
| tree | 17e77390b22a390a6fe9897fe0f1b086319097ae /arch/m68k/platform/coldfire/device.c | |
| parent | 0d2fe946474196e586e492d9e9b381e184c774ea (diff) | |
| download | lwn-55148f6f886a1b77dba1a5c3169208606827b9db.tar.gz lwn-55148f6f886a1b77dba1a5c3169208606827b9db.zip | |
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/device.c')
| -rw-r--r-- | arch/m68k/platform/coldfire/device.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/device.c b/arch/m68k/platform/coldfire/device.c index c9506907872f..b9301920afbf 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; } |