Commit 4b61a353 authored by Greg Ungerer's avatar Greg Ungerer Committed by Linus Torvalds

m68knommu: platform setup for 523x ColdFire parts

Switch to platform style configuration for 523x ColdFire parts.
Initial support is for the UARTs. DMA support moved to common code
for all ColdFire parts.
Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent cf64c233
...@@ -16,11 +16,11 @@ ...@@ -16,11 +16,11 @@
#include <linux/param.h> #include <linux/param.h>
#include <linux/init.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>
#include <asm/mcfdma.h> #include <asm/mcfuart.h>
/***************************************************************************/ /***************************************************************************/
...@@ -28,14 +28,58 @@ void coldfire_reset(void); ...@@ -28,14 +28,58 @@ void coldfire_reset(void);
/***************************************************************************/ /***************************************************************************/
/* static struct mcf_platform_uart m523x_uart_platform[] = {
* DMA channel base address table. {
*/ .mapbase = MCF_MBAR + MCFUART_BASE1,
unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = { .irq = MCFINT_VECBASE + MCFINT_UART0,
MCF_MBAR + MCFDMA_BASE0, },
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = MCFINT_VECBASE + MCFINT_UART0 + 1,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE3,
.irq = MCFINT_VECBASE + MCFINT_UART0 + 2,
},
{ },
};
static struct platform_device m523x_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m523x_uart_platform,
};
static struct platform_device *m523x_devices[] __initdata = {
&m523x_uart,
}; };
unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS]; /***************************************************************************/
#define INTC0 (MCF_MBAR + MCFICM_INTC0)
static void __init m523x_uart_init_line(int line, int irq)
{
u32 imr;
if ((line < 0) || (line > 2))
return;
writeb(0x30+line, (INTC0 + MCFINTC_ICR0 + MCFINT_UART0 + line));
imr = readl(INTC0 + MCFINTC_IMRL);
imr &= ~((1 << (irq - MCFINT_VECBASE)) | 1);
writel(imr, INTC0 + MCFINTC_IMRL);
}
static void __init m523x_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m523x_uart_platform);
int line;
for (line = 0; (line < nrlines); line++)
m523x_uart_init_line(line, m523x_uart_platform[line].irq);
}
/***************************************************************************/ /***************************************************************************/
...@@ -49,15 +93,26 @@ void mcf_disableall(void) ...@@ -49,15 +93,26 @@ void mcf_disableall(void)
void mcf_autovector(unsigned int vec) void mcf_autovector(unsigned int vec)
{ {
/* Everything is auto-vectored on the 5272 */ /* Everything is auto-vectored on the 523x */
} }
/***************************************************************************/ /***************************************************************************/
void config_BSP(char *commandp, int size) void __init config_BSP(char *commandp, int size)
{ {
mcf_disableall(); mcf_disableall();
mach_reset = coldfire_reset; mach_reset = coldfire_reset;
m523x_uarts_init();
} }
/***************************************************************************/ /***************************************************************************/
static int __init init_BSP(void)
{
platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices));
return 0;
}
arch_initcall(init_BSP);
/***************************************************************************/
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