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, 280 insertions, 0 deletions

diff --git a/arch/powerpc/cpu/mpc824x/cpu.c b/arch/powerpc/cpu/mpc824x/cpu.c
new file mode 100644
index 0000000..08f6a94
--- /dev/null
+++ b/arch/powerpc/cpu/mpc824x/cpu.c
@@ -0,0 +1,280 @@
+/*
+ * (C) Copyright 2000 - 2002
+ * 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
+ */
+
+#include <config.h>
+#include <mpc824x.h>
+#include <common.h>
+#include <command.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkcpu (void)
+{
+	unsigned int pvr = get_pvr ();
+	unsigned int version = pvr >> 16;
+	unsigned char revision;
+	ulong clock = gd->cpu_clk;
+	char buf[32];
+
+	puts ("CPU:   ");
+
+	switch (version) {
+	case CPU_TYPE_8240:
+		puts ("MPC8240");
+		break;
+
+	case CPU_TYPE_8245:
+		puts ("MPC8245");
+		break;
+
+	default:
+		return -1;		/*not valid for this source */
+	}
+
+	CONFIG_READ_BYTE (REVID, revision);
+
+	if (revision) {
+		printf (" Revision %d.%d",
+			(revision & 0xf0) >> 4,
+			(revision & 0x0f));
+	} else {
+		return -1;		/* no valid CPU revision info */
+	}
+
+	printf (" at %s MHz:", strmhz (buf, clock));
+
+	printf (" %u kB I-Cache", checkicache () >> 10);
+	printf (" %u kB D-Cache", checkdcache () >> 10);
+
+	puts ("\n");
+
+	return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+/* L1 i-cache                                                                */
+
+int checkicache (void)
+{
+	 /*TODO*/
+	 return 128 * 4 * 32;
+};
+
+/* ------------------------------------------------------------------------- */
+/* L1 d-cache                                                                */
+
+int checkdcache (void)
+{
+	 /*TODO*/
+	 return 128 * 4 * 32;
+
+};
+
+/*------------------------------------------------------------------- */
+
+int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	ulong msr, addr;
+
+	/* Interrupts and MMU off */
+	__asm__ ("mtspr    81, 0");
+
+	/* Interrupts and MMU off */
+	__asm__ __volatile__ ("mfmsr    %0":"=r" (msr):);
+
+	msr &= ~0x1030;
+	__asm__ __volatile__ ("mtmsr    %0"::"r" (msr));
+
+	/*
+	 * Trying to execute the next instruction at a non-existing address
+	 * should cause a machine check, resulting in reset
+	 */
+#ifdef CONFIG_SYS_RESET_ADDRESS
+	addr = CONFIG_SYS_RESET_ADDRESS;
+#else
+	/*
+	 * note: when CONFIG_SYS_MONITOR_BASE points to a RAM address,
+	 * CONFIG_SYS_MONITOR_BASE - sizeof (ulong) is usually a valid
+	 * address. Better pick an address known to be invalid on
+	 * your system and assign it to CONFIG_SYS_RESET_ADDRESS.
+	 * "(ulong)-1" used to be a good choice for many systems...
+	 */
+	addr = CONFIG_SYS_MONITOR_BASE - sizeof (ulong);
+#endif
+	((void (*)(void)) addr) ();
+	return 1;
+
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * Get timebase clock frequency (like cpu_clk in Hz)
+ * This is the sys_logic_clk (memory bus) divided by 4
+ */
+unsigned long get_tbclk (void)
+{
+	return ((get_bus_freq (0) + 2L) / 4L);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/*
+ * The MPC824x has an integrated PCI controller known as the MPC107.
+ * The following are MPC107 Bridge Controller and PCI Support functions
+ *
+ */
+
+/*
+ *  This procedure reads a 32-bit address MPC107 register, and returns
+ *  a 32 bit value.  It swaps the address to little endian before
+ *  writing it to config address, and swaps the value to big endian
+ *  before returning to the caller.
+ */
+unsigned int mpc824x_mpc107_getreg (unsigned int regNum)
+{
+	unsigned int temp;
+
+	/* swap the addr. to little endian */
+	*(volatile unsigned int *) CHRP_REG_ADDR = PCISWAP (regNum);
+	temp = *(volatile unsigned int *) CHRP_REG_DATA;
+	return PCISWAP (temp);		/* swap the data upon return */
+}
+
+/*
+ *  This procedure writes a 32-bit address MPC107 register.  It swaps
+ *  the address to little endian before writing it to config address.
+ */
+
+void mpc824x_mpc107_setreg (unsigned int regNum, unsigned int regVal)
+{
+	/* swap the addr. to little endian */
+	*(volatile unsigned int *) CHRP_REG_ADDR = PCISWAP (regNum);
+	*(volatile unsigned int *) CHRP_REG_DATA = PCISWAP (regVal);
+	return;
+}
+
+
+/*
+ *  Write a byte (8 bits) to a memory location.
+ */
+void mpc824x_mpc107_write8 (unsigned int addr, unsigned char data)
+{
+	*(unsigned char *) addr = data;
+	__asm__ ("sync");
+}
+
+/*
+ *  Write a word (16 bits) to a memory location after the value
+ *  has been byte swapped (big to little endian or vice versa)
+ */
+
+void mpc824x_mpc107_write16 (unsigned int address, unsigned short data)
+{
+	*(volatile unsigned short *) address = BYTE_SWAP_16_BIT (data);
+	__asm__ ("sync");
+}
+
+/*
+ *  Write a long word (32 bits) to a memory location after the value
+ *  has been byte swapped (big to little endian or vice versa)
+ */
+
+void mpc824x_mpc107_write32 (unsigned int address, unsigned int data)
+{
+	*(volatile unsigned int *) address = LONGSWAP (data);
+	__asm__ ("sync");
+}
+
+/*
+ *  Read a byte (8 bits) from a memory location.
+ */
+unsigned char mpc824x_mpc107_read8 (unsigned int addr)
+{
+	return *(volatile unsigned char *) addr;
+}
+
+
+/*
+ *  Read a word (16 bits) from a memory location, and byte swap the
+ *  value before returning to the caller.
+ */
+unsigned short mpc824x_mpc107_read16 (unsigned int address)
+{
+	unsigned short retVal;
+
+	retVal = BYTE_SWAP_16_BIT (*(unsigned short *) address);
+	return retVal;
+}
+
+
+/*
+ *  Read a long word (32 bits) from a memory location, and byte
+ *  swap the value before returning to the caller.
+ */
+unsigned int mpc824x_mpc107_read32 (unsigned int address)
+{
+	unsigned int retVal;
+
+	retVal = LONGSWAP (*(unsigned int *) address);
+	return (retVal);
+}
+
+
+/*
+ *  Read a register in the Embedded Utilities Memory Block address
+ *  space.
+ *  Input: regNum - register number + utility base address.  Example,
+ *         the base address of EPIC is 0x40000, the register number
+ *	   being passed is 0x40000+the address of the target register.
+ *	   (See epic.h for register addresses).
+ *  Output:  The 32 bit little endian value of the register.
+ */
+
+unsigned int mpc824x_eummbar_read (unsigned int regNum)
+{
+	unsigned int temp;
+
+	temp = *(volatile unsigned int *) (EUMBBAR_VAL + regNum);
+	temp = PCISWAP (temp);
+	return temp;
+}
+
+
+/*
+ *  Write a value to a register in the Embedded Utilities Memory
+ *  Block address space.
+ *  Input: regNum - register number + utility base address.  Example,
+ *                  the base address of EPIC is 0x40000, the register
+ *	            number is 0x40000+the address of the target register.
+ *	            (See epic.h for register addresses).
+ *         regVal - value to be written to the register.
+ */
+
+void mpc824x_eummbar_write (unsigned int regNum, unsigned int regVal)
+{
+	*(volatile unsigned int *) (EUMBBAR_VAL + regNum) = PCISWAP (regVal);
+	return;
+}
+
+/* ------------------------------------------------------------------------- */