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authorGreg Ungerer <gerg@snapgear.com>2008-02-01 10:34:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2008-02-01 12:54:03 +0300
commit9685c43e4ea7e7267afd30157ca22af4e21e2767 (patch)
tree6d7547e3eff78564fbdc0a6dabad7f6e0604143c /arch/m68knommu
parentae1b5f0d2311057643657b71a272c4748e4b21d2 (diff)
downloadlinux-9685c43e4ea7e7267afd30157ca22af4e21e2767.tar.xz
m68knommu: platform setup for 5206 ColdFire parts
Switch to platform style configuration for 5206 ColdFire parts. Initial support is for the UARTs. DMA support moved to common code for all ColdFire parts. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m68knommu')
-rw-r--r--arch/m68knommu/platform/5206/config.c68
1 files changed, 57 insertions, 11 deletions
diff --git a/arch/m68knommu/platform/5206/config.c b/arch/m68knommu/platform/5206/config.c
index b3c4dd4cc135..8836b428a514 100644
--- a/arch/m68knommu/platform/5206/config.c
+++ b/arch/m68knommu/platform/5206/config.c
@@ -13,12 +13,11 @@
#include <linux/param.h>
#include <linux/init.h>
#include <linux/interrupt.h>
-#include <asm/dma.h>
+#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
-#include <asm/mcftimer.h>
#include <asm/mcfsim.h>
-#include <asm/mcfdma.h>
+#include <asm/mcfuart.h>
/***************************************************************************/
@@ -26,15 +25,51 @@ void coldfire_reset(void);
/***************************************************************************/
-/*
- * DMA channel base address table.
- */
-unsigned int dma_base_addr[MAX_M68K_DMA_CHANNELS] = {
- MCF_MBAR + MCFDMA_BASE0,
- MCF_MBAR + MCFDMA_BASE1,
+static struct mcf_platform_uart m5206_uart_platform[] = {
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE1,
+ .irq = 73,
+ },
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE2,
+ .irq = 74,
+ },
+ { },
+};
+
+static struct platform_device m5206_uart = {
+ .name = "mcfuart",
+ .id = 0,
+ .dev.platform_data = m5206_uart_platform,
};
-unsigned int dma_device_address[MAX_M68K_DMA_CHANNELS];
+static struct platform_device *m5206_devices[] __initdata = {
+ &m5206_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 m5206_uarts_init(void)
+{
+ const int nrlines = ARRAY_SIZE(m5206_uart_platform);
+ int line;
+
+ for (line = 0; (line < nrlines); line++)
+ m5206_uart_init_line(line, m5206_uart_platform[line].irq);
+}
/***************************************************************************/
@@ -88,10 +123,21 @@ 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);
mach_reset = coldfire_reset;
}
/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+ m5206_uarts_init();
+ platform_add_devices(m5206_devices, ARRAY_SIZE(m5206_devices));
+ return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/