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Diffstat (limited to 'arch/m68k/platform/coldfire/m5272.c')
-rw-r--r--arch/m68k/platform/coldfire/m5272.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/m5272.c b/arch/m68k/platform/coldfire/m5272.c
new file mode 100644
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+++ b/arch/m68k/platform/coldfire/m5272.c
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+/***************************************************************************/
+
+/*
+ * linux/arch/m68knommu/platform/5272/config.c
+ *
+ * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
+ * Copyright (C) 2001-2002, SnapGear Inc. (www.snapgear.com)
+ */
+
+/***************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/phy.h>
+#include <linux/phy_fixed.h>
+#include <asm/machdep.h>
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#include <asm/mcfuart.h>
+#include <asm/mcfgpio.h>
+
+/***************************************************************************/
+
+/*
+ * Some platforms need software versions of the GPIO data registers.
+ */
+unsigned short ppdata;
+unsigned char ledbank = 0xff;
+
+/***************************************************************************/
+
+struct mcf_gpio_chip mcf_gpio_chips[] = {
+ MCFGPS(PA, 0, 16, MCFSIM_PADDR, MCFSIM_PADAT, MCFSIM_PADAT),
+ MCFGPS(PB, 16, 16, MCFSIM_PBDDR, MCFSIM_PBDAT, MCFSIM_PBDAT),
+ MCFGPS(Pc, 32, 16, MCFSIM_PCDDR, MCFSIM_PCDAT, MCFSIM_PCDAT),
+};
+
+unsigned int mcf_gpio_chips_size = ARRAY_SIZE(mcf_gpio_chips);
+
+/***************************************************************************/
+
+static void __init m5272_uarts_init(void)
+{
+ u32 v;
+
+ /* Enable the output lines for the serial ports */
+ v = readl(MCF_MBAR + MCFSIM_PBCNT);
+ v = (v & ~0x000000ff) | 0x00000055;
+ writel(v, MCF_MBAR + MCFSIM_PBCNT);
+
+ v = readl(MCF_MBAR + MCFSIM_PDCNT);
+ v = (v & ~0x000003fc) | 0x000002a8;
+ writel(v, MCF_MBAR + MCFSIM_PDCNT);
+}
+
+/***************************************************************************/
+
+static void m5272_cpu_reset(void)
+{
+ local_irq_disable();
+ /* Set watchdog to reset, and enabled */
+ __raw_writew(0, MCF_MBAR + MCFSIM_WIRR);
+ __raw_writew(1, MCF_MBAR + MCFSIM_WRRR);
+ __raw_writew(0, MCF_MBAR + MCFSIM_WCR);
+ for (;;)
+ /* wait for watchdog to timeout */;
+}
+
+/***************************************************************************/
+
+void __init config_BSP(char *commandp, int size)
+{
+#if defined (CONFIG_MOD5272)
+ volatile unsigned char *pivrp;
+
+ /* Set base of device vectors to be 64 */
+ pivrp = (volatile unsigned char *) (MCF_MBAR + MCFSIM_PIVR);
+ *pivrp = 0x40;
+#endif
+
+#if defined(CONFIG_NETtel) || defined(CONFIG_SCALES)
+ /* Copy command line from FLASH to local buffer... */
+ memcpy(commandp, (char *) 0xf0004000, size);
+ commandp[size-1] = 0;
+#elif defined(CONFIG_CANCam)
+ /* Copy command line from FLASH to local buffer... */
+ memcpy(commandp, (char *) 0xf0010000, size);
+ commandp[size-1] = 0;
+#endif
+
+ mach_reset = m5272_cpu_reset;
+ mach_sched_init = hw_timer_init;
+}
+
+/***************************************************************************/
+
+/*
+ * Some 5272 based boards have the FEC ethernet diectly connected to
+ * an ethernet switch. In this case we need to use the fixed phy type,
+ * and we need to declare it early in boot.
+ */
+static struct fixed_phy_status nettel_fixed_phy_status __initdata = {
+ .link = 1,
+ .speed = 100,
+ .duplex = 0,
+};
+
+/***************************************************************************/
+
+static int __init init_BSP(void)
+{
+ m5272_uarts_init();
+ fixed_phy_add(PHY_POLL, 0, &nettel_fixed_phy_status);
+ return 0;
+}
+
+arch_initcall(init_BSP);
+
+/***************************************************************************/