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yaml
---
r: 81786
b: refs/heads/master
c: eb49e90
h: refs/heads/master
v: v3
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Greg Ungerer authored and Linus Torvalds committed Feb 1, 2008
1 parent 59b45ed commit 289b7c5
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Showing 2 changed files with 78 additions and 10 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 5f84bd52f03f8606982c75dfbda8c4cc1b725fee
refs/heads/master: eb49e9076141756d6c8fc97663e94eead0d7fc42
86 changes: 77 additions & 9 deletions trunk/arch/m68knommu/platform/528x/config.c
Original file line number Diff line number Diff line change
Expand Up @@ -16,26 +16,83 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <asm/dma.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#include <asm/mcfdma.h>
#include <asm/mcfuart.h>
#include <asm/mcfqspi.h>

/***************************************************************************/

void coldfire_reset(void);

/***************************************************************************/

/*
* DMA channel base address table.
*/
unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
MCF_MBAR + MCFDMA_BASE0,
static struct mcf_platform_uart m528x_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
.irq = MCFINT_VECBASE + MCFINT_UART0,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE2,
.irq = MCFINT_VECBASE + MCFINT_UART0 + 1,
},
{
.mapbase = MCF_MBAR + MCFUART_BASE3,
.irq = MCFINT_VECBASE + MCFINT_UART0 + 2,
},
{ },
};

unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
static struct platform_device m528x_uart = {
.name = "mcfuart",
.id = 0,
.dev.platform_data = m528x_uart_platform,
};

static struct platform_device *m528x_devices[] __initdata = {
&m528x_uart,
};

/***************************************************************************/

#define INTC0 (MCF_MBAR + MCFICM_INTC0)

static void __init m528x_uart_init_line(int line, int irq)
{
u8 port;
u32 imr;

if ((line < 0) || (line > 2))
return;

/* level 6, line based priority */
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);

/* make sure PUAPAR is set for UART0 and UART1 */
if (line < 2) {
port = readb(MCF_MBAR + MCF5282_GPIO_PUAPAR);
port |= (0x03 << (line * 2));
writeb(port, MCF_MBAR + MCF5282_GPIO_PUAPAR);
}
}

static void __init m528x_uarts_init(void)
{
const int nrlines = ARRAY_SIZE(m528x_uart_platform);
int line;

for (line = 0; (line < nrlines); line++)
m528x_uart_init_line(line, m528x_uart_platform[line].irq);
}

/***************************************************************************/

Expand All @@ -54,10 +111,21 @@ void mcf_autovector(unsigned int vec)

/***************************************************************************/

void config_BSP(char *commandp, int size)
void __init config_BSP(char *commandp, int size)
{
mcf_disableall();
mach_reset = coldfire_reset;
}

/***************************************************************************/

static int __init init_BSP(void)
{
m528x_uarts_init();
platform_add_devices(m528x_devices, ARRAY_SIZE(m528x_devices));
return 0;
}

arch_initcall(init_BSP);

/***************************************************************************/

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