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authorGreg Ungerer <gerg@uclinux.org>2011-12-24 01:08:47 +1000
committerGreg Ungerer <gerg@uclinux.org>2012-03-05 09:43:07 +1000
commitb9a0c3f88ef6163f56662d0121d4932b457568bb (patch)
tree1dbd3956ec1cc2d46ea9fcbe825ace87d5f1c51f /arch/m68k
parentb77fb7faa9c80021e885749f8e4cf84a4981c8ba (diff)
downloadop-kernel-dev-b9a0c3f88ef6163f56662d0121d4932b457568bb.zip
op-kernel-dev-b9a0c3f88ef6163f56662d0121d4932b457568bb.tar.gz
m68knommu: simplify the 54xx 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>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/platform/54xx/config.c33
1 files changed, 9 insertions, 24 deletions
diff --git a/arch/m68k/platform/54xx/config.c b/arch/m68k/platform/54xx/config.c
index fdf6dcf..4083f50 100644
--- a/arch/m68k/platform/54xx/config.c
+++ b/arch/m68k/platform/54xx/config.c
@@ -59,32 +59,17 @@ static struct platform_device *m54xx_devices[] __initdata = {
/***************************************************************************/
-static void __init m54xx_uart_init_line(int line, int irq)
-{
- int rts_cts;
-
- /* enable io pins */
- switch (line) {
- case 0:
- rts_cts = 0; break;
- case 1:
- rts_cts = MCF_PAR_PSC_RTS_RTS; break;
- case 2:
- rts_cts = MCF_PAR_PSC_RTS_RTS | MCF_PAR_PSC_CTS_CTS; break;
- case 3:
- rts_cts = 0; break;
- }
- __raw_writeb(MCF_PAR_PSC_TXD | rts_cts | MCF_PAR_PSC_RXD,
- MCF_MBAR + MCF_PAR_PSC(line));
-}
-
static void __init m54xx_uarts_init(void)
{
- const int nrlines = ARRAY_SIZE(m54xx_uart_platform);
- int line;
-
- for (line = 0; (line < nrlines); line++)
- m54xx_uart_init_line(line, m54xx_uart_platform[line].irq);
+ /* enable io pins */
+ __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD,
+ MCF_MBAR + MCF_PAR_PSC(0));
+ __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD | MCF_PAR_PSC_RTS_RTS,
+ MCF_MBAR + MCF_PAR_PSC(1));
+ __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD | MCF_PAR_PSC_RTS_RTS |
+ MCF_PAR_PSC_CTS_CTS, MCF_MBAR + MCF_PAR_PSC(2));
+ __raw_writeb(MCF_PAR_PSC_TXD | MCF_PAR_PSC_RXD,
+ MCF_MBAR + MCF_PAR_PSC(3));
}
/***************************************************************************/
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