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, 330 insertions, 0 deletions

diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
new file mode 100644
index 0000000..0cc6e03
--- /dev/null
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -0,0 +1,330 @@
+/*
+ * Copyright 2004,2007-2009 Freescale Semiconductor, Inc.
+ * (C) Copyright 2002, 2003 Motorola Inc.
+ * Xianghua Xiao (X.Xiao@motorola.com)
+ *
+ * (C) Copyright 2000
+ * 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 <common.h>
+#include <watchdog.h>
+#include <command.h>
+#include <fsl_esdhc.h>
+#include <asm/cache.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkcpu (void)
+{
+	sys_info_t sysinfo;
+	uint pvr, svr;
+	uint fam;
+	uint ver;
+	uint major, minor;
+	struct cpu_type *cpu;
+	char buf1[32], buf2[32];
+#ifdef CONFIG_DDR_CLK_FREQ
+	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+#ifdef CONFIG_FSL_CORENET
+	u32 ddr_sync = ((gur->rcwsr[5]) & FSL_CORENET_RCWSR5_DDR_SYNC)
+		>> FSL_CORENET_RCWSR5_DDR_SYNC_SHIFT;
+#else
+	u32 ddr_ratio = ((gur->porpllsr) & MPC85xx_PORPLLSR_DDR_RATIO)
+		>> MPC85xx_PORPLLSR_DDR_RATIO_SHIFT;
+#endif
+#else
+#ifdef CONFIG_FSL_CORENET
+	u32 ddr_sync = 0;
+#else
+	u32 ddr_ratio = 0;
+#endif
+#endif /* CONFIG_DDR_CLK_FREQ */
+	int i;
+
+	svr = get_svr();
+	major = SVR_MAJ(svr);
+#ifdef CONFIG_MPC8536
+	major &= 0x7; /* the msb of this nibble is a mfg code */
+#endif
+	minor = SVR_MIN(svr);
+
+	if (cpu_numcores() > 1) {
+#ifndef CONFIG_MP
+		puts("Unicore software on multiprocessor system!!\n"
+		     "To enable mutlticore build define CONFIG_MP\n");
+#endif
+		volatile ccsr_pic_t *pic = (void *)(CONFIG_SYS_MPC85xx_PIC_ADDR);
+		printf("CPU%d:  ", pic->whoami);
+	} else {
+		puts("CPU:   ");
+	}
+
+	cpu = gd->cpu;
+
+	puts(cpu->name);
+	if (IS_E_PROCESSOR(svr))
+		puts("E");
+
+	printf(", Version: %d.%d, (0x%08x)\n", major, minor, svr);
+
+	pvr = get_pvr();
+	fam = PVR_FAM(pvr);
+	ver = PVR_VER(pvr);
+	major = PVR_MAJ(pvr);
+	minor = PVR_MIN(pvr);
+
+	printf("Core:  ");
+	switch (fam) {
+	case PVR_FAM(PVR_85xx):
+	    puts("E500");
+	    break;
+	default:
+	    puts("Unknown");
+	    break;
+	}
+
+	if (PVR_MEM(pvr) == 0x03)
+		puts("MC");
+
+	printf(", Version: %d.%d, (0x%08x)\n", major, minor, pvr);
+
+	get_sys_info(&sysinfo);
+
+	puts("Clock Configuration:");
+	for (i = 0; i < cpu_numcores(); i++) {
+		if (!(i & 3))
+			printf ("\n       ");
+		printf("CPU%d:%-4s MHz, ",
+				i,strmhz(buf1, sysinfo.freqProcessor[i]));
+	}
+	printf("\n       CCB:%-4s MHz,\n", strmhz(buf1, sysinfo.freqSystemBus));
+
+#ifdef CONFIG_FSL_CORENET
+	if (ddr_sync == 1) {
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Synchronous), ",
+			strmhz(buf1, sysinfo.freqDDRBus/2),
+			strmhz(buf2, sysinfo.freqDDRBus));
+	} else {
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Asynchronous), ",
+			strmhz(buf1, sysinfo.freqDDRBus/2),
+			strmhz(buf2, sysinfo.freqDDRBus));
+	}
+#else
+	switch (ddr_ratio) {
+	case 0x0:
+		printf("       DDR:%-4s MHz (%s MT/s data rate), ",
+			strmhz(buf1, sysinfo.freqDDRBus/2),
+			strmhz(buf2, sysinfo.freqDDRBus));
+		break;
+	case 0x7:
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Synchronous), ",
+			strmhz(buf1, sysinfo.freqDDRBus/2),
+			strmhz(buf2, sysinfo.freqDDRBus));
+		break;
+	default:
+		printf("       DDR:%-4s MHz (%s MT/s data rate) "
+			"(Asynchronous), ",
+			strmhz(buf1, sysinfo.freqDDRBus/2),
+			strmhz(buf2, sysinfo.freqDDRBus));
+		break;
+	}
+#endif
+
+	if (sysinfo.freqLocalBus > LCRR_CLKDIV) {
+		printf("LBC:%-4s MHz\n", strmhz(buf1, sysinfo.freqLocalBus));
+	} else {
+		printf("LBC: unknown (LCRR[CLKDIV] = 0x%02lx)\n",
+		       sysinfo.freqLocalBus);
+	}
+
+#ifdef CONFIG_CPM2
+	printf("CPM:   %s MHz\n", strmhz(buf1, sysinfo.freqSystemBus));
+#endif
+
+#ifdef CONFIG_QE
+	printf("       QE:%-4s MHz\n", strmhz(buf1, sysinfo.freqQE));
+#endif
+
+#ifdef CONFIG_SYS_DPAA_FMAN
+	for (i = 0; i < CONFIG_SYS_NUM_FMAN; i++) {
+		printf("       FMAN%d: %s MHz\n", i,
+			strmhz(buf1, sysinfo.freqFMan[i]));
+	}
+#endif
+
+#ifdef CONFIG_SYS_DPAA_PME
+	printf("       PME:   %s MHz\n", strmhz(buf1, sysinfo.freqPME));
+#endif
+
+	puts("L1:    D-cache 32 kB enabled\n       I-cache 32 kB enabled\n");
+
+	return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+{
+/* Everything after the first generation of PQ3 parts has RSTCR */
+#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
+    defined(CONFIG_MPC8555) || defined(CONFIG_MPC8560)
+	unsigned long val, msr;
+
+	/*
+	 * Initiate hard reset in debug control register DBCR0
+	 * Make sure MSR[DE] = 1.  This only resets the core.
+	 */
+	msr = mfmsr ();
+	msr |= MSR_DE;
+	mtmsr (msr);
+
+	val = mfspr(DBCR0);
+	val |= 0x70000000;
+	mtspr(DBCR0,val);
+#else
+	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
+	out_be32(&gur->rstcr, 0x2);	/* HRESET_REQ */
+	udelay(100);
+#endif
+
+	return 1;
+}
+
+
+/*
+ * Get timebase clock frequency
+ */
+unsigned long get_tbclk (void)
+{
+#ifdef CONFIG_FSL_CORENET
+	return (gd->bus_clk + 8) / 16;
+#else
+	return (gd->bus_clk + 4UL)/8UL;
+#endif
+}
+
+
+#if defined(CONFIG_WATCHDOG)
+void
+watchdog_reset(void)
+{
+	int re_enable = disable_interrupts();
+	reset_85xx_watchdog();
+	if (re_enable) enable_interrupts();
+}
+
+void
+reset_85xx_watchdog(void)
+{
+	/*
+	 * Clear TSR(WIS) bit by writing 1
+	 */
+	unsigned long val;
+	val = mfspr(SPRN_TSR);
+	val |= TSR_WIS;
+	mtspr(SPRN_TSR, val);
+}
+#endif	/* CONFIG_WATCHDOG */
+
+/*
+ * Configures a UPM. The function requires the respective MxMR to be set
+ * before calling this function. "size" is the number or entries, not a sizeof.
+ */
+void upmconfig (uint upm, uint * table, uint size)
+{
+	int i, mdr, mad, old_mad = 0;
+	volatile u32 *mxmr;
+	volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
+	volatile u32 *brp,*orp;
+	volatile u8* dummy = NULL;
+	int upmmask;
+
+	switch (upm) {
+	case UPMA:
+		mxmr = &lbc->mamr;
+		upmmask = BR_MS_UPMA;
+		break;
+	case UPMB:
+		mxmr = &lbc->mbmr;
+		upmmask = BR_MS_UPMB;
+		break;
+	case UPMC:
+		mxmr = &lbc->mcmr;
+		upmmask = BR_MS_UPMC;
+		break;
+	default:
+		printf("%s: Bad UPM index %d to configure\n", __FUNCTION__, upm);
+		hang();
+	}
+
+	/* Find the address for the dummy write transaction */
+	for (brp = &lbc->br0, orp = &lbc->or0, i = 0; i < 8;
+		 i++, brp += 2, orp += 2) {
+
+		/* Look for a valid BR with selected UPM */
+		if ((in_be32(brp) & (BR_V | BR_MSEL)) == (BR_V | upmmask)) {
+			dummy = (volatile u8*)(in_be32(brp) & BR_BA);
+			break;
+		}
+	}
+
+	if (i == 8) {
+		printf("Error: %s() could not find matching BR\n", __FUNCTION__);
+		hang();
+	}
+
+	for (i = 0; i < size; i++) {
+		/* 1 */
+		out_be32(mxmr,  (in_be32(mxmr) & 0x4fffffc0) | MxMR_OP_WARR | i);
+		/* 2 */
+		out_be32(&lbc->mdr, table[i]);
+		/* 3 */
+		mdr = in_be32(&lbc->mdr);
+		/* 4 */
+		*(volatile u8 *)dummy = 0;
+		/* 5 */
+		do {
+			mad = in_be32(mxmr) & MxMR_MAD_MSK;
+		} while (mad <= old_mad && !(!mad && i == (size-1)));
+		old_mad = mad;
+	}
+	out_be32(mxmr, (in_be32(mxmr) & 0x4fffffc0) | MxMR_OP_NORM);
+}
+
+/*
+ * Initializes on-chip MMC controllers.
+ * to override, implement board_mmc_init()
+ */
+int cpu_mmc_init(bd_t *bis)
+{
+#ifdef CONFIG_FSL_ESDHC
+	return fsl_esdhc_mmc_init(bis);
+#else
+	return 0;
+#endif
+}