lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

m68knommu: platform setup for 5206e ColdFire parts

Browse Source 
Switch to platform style configuration for 5206e ColdFire parts.
Initial support is for the UARTs. DMA support is moved to common code.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Greg Ungerer
2008-02-01 17:34:08 +10:00
committed by Linus Torvalds
parent 9685c43e4e
commit cf64c23383
1 changed files with 57 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

66
arch/m68knommu/platform/5206e/config.c
View File

@@ -10,8 +10,9 @@
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/param.h> #include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
#include <asm/dma.h> #include <linux/io.h>
#include <asm/machdep.h> #include <asm/machdep.h>
#include <asm/coldfire.h> #include <asm/coldfire.h>
#include <asm/mcfsim.h> #include <asm/mcfsim.h>
@@ -23,15 +24,51 @@ void coldfire_reset(void);
/***************************************************************************/ /***************************************************************************/
/* static struct mcf_platform_uart m5206e_uart_platform[] = {
* DMA channel base address table. {
*/ .mapbase = MCF_MBAR + MCFUART_BASE1,
unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { .irq = 73,
MCF_MBAR + MCFDMA_BASE0, },
MCF_MBAR + MCFDMA_BASE1, {
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = 74,
},
{ },
}; };
unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; static struct platform_device m5206e_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m5206e_uart_platform,
};
static struct platform_device *m5206e_devices[] __initdata = {
&m5206e_uart,
};
/***************************************************************************/
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_BASE1 + MCFUART_UIVR);
mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART1);
} else if (line == 1) {
writel(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
writeb(irq, MCFUART_BASE2 + MCFUART_UIVR);
mcf_setimr(mcf_getimr() & ~MCFSIM_IMR_UART2);
}
}
static void __init m5206e_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m5206e_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m5206e_uart_init_line(line, m5206e_uart_platform[line].irq);
}
/***************************************************************************/ /***************************************************************************/
@@ -85,7 +122,7 @@ int mcf_timerirqpending(int timer)
/***************************************************************************/ /***************************************************************************/
void config_BSP(char *commandp, int size) void __init config_BSP(char *commandp, int size)
{ {
mcf_setimr(MCFSIM_IMR_MASKALL); mcf_setimr(MCFSIM_IMR_MASKALL);
@@ -99,3 +136,14 @@ void config_BSP(char *commandp, int size)
} }
/***************************************************************************/ /***************************************************************************/
static int __init init_BSP(void)
{
m5206e_uarts_init();
platform_add_devices(m5206e_devices, ARRAY_SIZE(m5206e_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/