summaryrefslogtreecommitdiffstats
path: root/arch/m68k/platform/5407/config.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/platform/5407/config.c')
-rw-r--r--arch/m68k/platform/5407/config.c122
1 files changed, 122 insertions, 0 deletions
diff --git a/arch/m68k/platform/5407/config.c b/arch/m68k/platform/5407/config.c
new file mode 100644
index 000000000000..70ea789a400c
--- /dev/null
+++ b/arch/m68k/platform/5407/config.c
@@ -0,0 +1,122 @@
+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/5407/config.c
+ *
+ * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
+ * Copyright (C) 2000, Lineo (www.lineo.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfuart.h>
+
+/***************************************************************************/
+
+static struct mcf_platform_uart m5407_uart_platform[] = {
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE1,
+ .irq = 73,
+ },
+ {
+ .mapbase = MCF_MBAR + MCFUART_BASE2,
+ .irq = 74,
+ },
+ { },
+};
+
+static struct platform_device m5407_uart = {
+ .name = "mcfuart",
+ .id = 0,
+ .dev.platform_data = m5407_uart_platform,
+};
+
+static struct platform_device *m5407_devices[] __initdata = {
+ &m5407_uart,
+};
+
+/***************************************************************************/
+
+static void __init m5407_uart_init_line(int line, int irq)
+{
+ if (line == 0) {
+ writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI1, MCF_MBAR + MCFSIM_UART1ICR);
+ writeb(irq, MCF_MBAR + MCFUART_BASE1 + MCFUART_UIVR);
+ mcf_mapirq2imr(irq, MCFINTC_UART0);
+ } else if (line == 1) {
+ writeb(MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI2, MCF_MBAR + MCFSIM_UART2ICR);
+ writeb(irq, MCF_MBAR + MCFUART_BASE2 + MCFUART_UIVR);
+ mcf_mapirq2imr(irq, MCFINTC_UART1);
+ }
+}
+
+static void __init m5407_uarts_init(void)
+{
+ const int nrlines = ARRAY_SIZE(m5407_uart_platform);
+ int line;
+
+ for (line = 0; (line < nrlines); line++)
+ m5407_uart_init_line(line, m5407_uart_platform[line].irq);
+}
+
+/***************************************************************************/
+
+static void __init m5407_timers_init(void)
+{
+ /* Timer1 is always used as system timer */
+ writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL6 | MCFSIM_ICR_PRI3,
+ MCF_MBAR + MCFSIM_TIMER1ICR);
+ mcf_mapirq2imr(MCF_IRQ_TIMER, MCFINTC_TIMER1);
+
+#ifdef CONFIG_HIGHPROFILE
+ /* Timer2 is to be used as a high speed profile timer */
+ writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL7 | MCFSIM_ICR_PRI3,
+ MCF_MBAR + MCFSIM_TIMER2ICR);
+ mcf_mapirq2imr(MCF_IRQ_PROFILER, MCFINTC_TIMER2);
+#endif
+}
+
+/***************************************************************************/
+
+void m5407_cpu_reset(void)
+{
+ local_irq_disable();
+ /* set watchdog to soft reset, and enabled */
+ __raw_writeb(0xc0, MCF_MBAR + MCFSIM_SYPCR);
+ for (;;)
+ /* wait for watchdog to timeout */;
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+ mach_reset = m5407_cpu_reset;
+ m5407_timers_init();
+ m5407_uarts_init();
+
+ /* Only support the external interrupts on their primary level */
+ mcf_mapirq2imr(25, MCFINTC_EINT1);
+ mcf_mapirq2imr(27, MCFINTC_EINT3);
+ mcf_mapirq2imr(29, MCFINTC_EINT5);
+ mcf_mapirq2imr(31, MCFINTC_EINT7);
+}
+
+/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+ platform_add_devices(m5407_devices, ARRAY_SIZE(m5407_devices));
+ return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/