Move arch/ppc to arch/powerpc

As discussed on the list, move "arch/ppc" to "arch/powerpc" to
better match the Linux directory structure.

Please note that this patch also changes the "ppc" target in
MAKEALL to "powerpc" to match this new infrastructure. But "ppc"
is kept as an alias for now, to not break compatibility with
scripts using this name.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
Acked-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Anatolij Gustschin <agust@denx.de>

1 files changed, 205 insertions, 0 deletions

diff --git a/arch/powerpc/cpu/mpc5xxx/cpu.c b/arch/powerpc/cpu/mpc5xxx/cpu.c
new file mode 100644
index 0000000000..b20234d32e
--- /dev/null
+++ b/arch/powerpc/cpu/mpc5xxx/cpu.c
@@ -0,0 +1,205 @@
+/*
+ * (C) Copyright 2000-2010
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * CPU specific code for the MPC5xxx CPUs
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <net.h>
+#include <mpc5xxx.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+#if defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#include <libfdt_env.h>
+#include <fdt_support.h>
+#endif
+
+#if defined(CONFIG_OF_IDE_FIXUP)
+#include <ide.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkcpu (void)
+{
+	ulong clock = gd->cpu_clk;
+	char buf[32];
+	uint svr, pvr;
+
+	puts ("CPU:   ");
+
+	svr = get_svr();
+	pvr = get_pvr();
+
+	switch (pvr) {
+	case PVR_5200:
+		printf("MPC5200");
+		break;
+	case PVR_5200B:
+		printf("MPC5200B");
+		break;
+	default:
+		printf("Unknown MPC5xxx");
+		break;
+	}
+
+	printf (" v%d.%d, Core v%d.%d", SVR_MJREV (svr), SVR_MNREV (svr),
+		PVR_MAJ(pvr), PVR_MIN(pvr));
+	printf (" at %s MHz\n", strmhz (buf, clock));
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+int
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	ulong msr;
+	/* Interrupts and MMU off */
+	__asm__ __volatile__ ("mfmsr    %0":"=r" (msr):);
+
+	msr &= ~(MSR_ME | MSR_EE | MSR_IR | MSR_DR);
+	__asm__ __volatile__ ("mtmsr    %0"::"r" (msr));
+
+	/* Charge the watchdog timer */
+	*(vu_long *)(MPC5XXX_GPT0_COUNTER) = 0x0001000f;
+	*(vu_long *)(MPC5XXX_GPT0_ENABLE) = 0x9004; /* wden|ce|timer_ms */
+	while(1);
+
+	return 1;
+
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Get timebase clock frequency (like cpu_clk in Hz)
+ *
+ */
+unsigned long get_tbclk (void)
+{
+	ulong tbclk;
+
+	tbclk = (gd->bus_clk + 3L) / 4L;
+
+	return (tbclk);
+}
+
+/* ------------------------------------------------------------------------- */
+
+#if defined(CONFIG_OF_LIBFDT) && defined (CONFIG_OF_BOARD_SETUP)
+void ft_cpu_setup(void *blob, bd_t *bd)
+{
+	int div = in_8((void*)CONFIG_SYS_MBAR + 0x204) & 0x0020 ? 8 : 4;
+	char * cpu_path = "/cpus/" OF_CPU;
+#ifdef CONFIG_MPC5xxx_FEC
+	uchar enetaddr[6];
+	char * eth_path = "/" OF_SOC "/ethernet@3000";
+#endif
+
+	do_fixup_by_path_u32(blob, cpu_path, "timebase-frequency", OF_TBCLK, 1);
+	do_fixup_by_path_u32(blob, cpu_path, "bus-frequency", bd->bi_busfreq, 1);
+	do_fixup_by_path_u32(blob, cpu_path, "clock-frequency", bd->bi_intfreq, 1);
+	do_fixup_by_path_u32(blob, "/" OF_SOC, "bus-frequency", bd->bi_ipbfreq, 1);
+	do_fixup_by_path_u32(blob, "/" OF_SOC, "system-frequency",
+				bd->bi_busfreq*div, 1);
+#ifdef CONFIG_MPC5xxx_FEC
+	eth_getenv_enetaddr("ethaddr", enetaddr);
+	do_fixup_by_path(blob, eth_path, "mac-address", enetaddr, 6, 0);
+	do_fixup_by_path(blob, eth_path, "local-mac-address", enetaddr, 6, 0);
+#endif
+#if defined(CONFIG_OF_IDE_FIXUP)
+	if (!ide_device_present(0)) {
+		/* NO CF card detected -> delete ata node in DTS */
+		int nodeoffset = 0;
+		char nodename[] = "/soc5200@f0000000/ata@3a00";
+
+		nodeoffset = fdt_path_offset(blob, nodename);
+		if (nodeoffset >= 0) {
+			fdt_del_node(blob, nodeoffset);
+		} else {
+			printf("%s: cannot find %s node err:%s\n",
+				__func__, nodename, fdt_strerror(nodeoffset));
+		}
+	}
+
+#endif
+	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
+}
+#endif
+
+#ifdef CONFIG_BOOTCOUNT_LIMIT
+
+void bootcount_store (ulong a)
+{
+	volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
+
+	*save_addr = (BOOTCOUNT_MAGIC & 0xffff0000) | a;
+}
+
+ulong bootcount_load (void)
+{
+	volatile ulong *save_addr = (volatile ulong *) (MPC5XXX_CDM_BRDCRMB);
+
+	if ((*save_addr & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
+		return 0;
+	else
+		return (*save_addr & 0x0000ffff);
+}
+#endif /* CONFIG_BOOTCOUNT_LIMIT */
+
+#ifdef CONFIG_MPC5xxx_FEC
+/* Default initializations for FEC controllers.  To override,
+ * create a board-specific function called:
+ * 	int board_eth_init(bd_t *bis)
+ */
+
+int cpu_eth_init(bd_t *bis)
+{
+	return mpc5xxx_fec_initialize(bis);
+}
+#endif
+
+#if defined(CONFIG_WATCHDOG)
+void watchdog_reset(void)
+{
+	int re_enable = disable_interrupts();
+	reset_5xxx_watchdog();
+	if (re_enable) enable_interrupts();
+}
+
+void reset_5xxx_watchdog(void)
+{
+	volatile struct mpc5xxx_gpt *gpt0 =
+		(struct mpc5xxx_gpt *) MPC5XXX_GPT;
+
+	/* Trigger TIMER_0 by writing A5 to OCPW */
+	clrsetbits_be32(&gpt0->emsr, 0xff000000, 0xa5000000);
+}
+#endif	/* CONFIG_WATCHDOG */