Merge with /home/wd/git/u-boot/jon_loeliger

1 files changed, 163 insertions, 0 deletions

diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c
new file mode 100644
index 0000000..dcb3445
--- /dev/null
+++ b/cpu/mpc83xx/cpu_init.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2004 Freescale Semiconductor, Inc.
+ *
+ * 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
+ *
+ * Change log:
+ *
+ * 20050101: Eran Liberty (liberty@freescale.com)
+ *           Initial file creating (porting from 85XX & 8260)
+ */
+
+#include <common.h>
+#include <mpc83xx.h>
+#include <ioports.h>
+
+/*
+ * Breathe some life into the CPU...
+ *
+ * Set up the memory map,
+ * initialize a bunch of registers,
+ * initialize the UPM's
+ */
+void cpu_init_f (volatile immap_t * im)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/* Pointer is writable since we allocated a register for it */
+	gd = (gd_t *) (CFG_INIT_RAM_ADDR + CFG_GBL_DATA_OFFSET);
+
+	/* Clear initial global data */
+	memset ((void *) gd, 0, sizeof (gd_t));
+
+	/* RSR - Reset Status Register - clear all status (4.6.1.3) */
+	gd->reset_status = im->reset.rsr;
+	im->reset.rsr = ~(RSR_RES);
+
+	/*
+	 * RMR - Reset Mode Register
+	 * contains checkstop reset enable (4.6.1.4)
+	 */
+	im->reset.rmr = (RMR_CSRE & (1<<RMR_CSRE_SHIFT));
+
+	/* LCRR - Clock Ratio Register (10.3.1.16) */
+	im->lbus.lcrr = CFG_LCRR;
+
+	/* Enable Time Base & Decrimenter ( so we will have udelay() )*/
+	im->sysconf.spcr |= SPCR_TBEN;
+
+	/* System General Purpose Register */
+	im->sysconf.sicrh = SICRH_TSOBI1;
+	im->sysconf.sicrl = SICRL_LDP_A;
+
+	/*
+	 * Memory Controller:
+	 */
+
+	/* Map banks 0 and 1 to the FLASH banks 0 and 1 at preliminary
+	 * addresses - these have to be modified later when FLASH size
+	 * has been determined
+	 */
+
+#if defined(CFG_BR0_PRELIM)  \
+	&& defined(CFG_OR0_PRELIM) \
+	&& defined(CFG_LBLAWBAR0_PRELIM) \
+	&& defined(CFG_LBLAWAR0_PRELIM)
+	im->lbus.bank[0].br = CFG_BR0_PRELIM;
+	im->lbus.bank[0].or = CFG_OR0_PRELIM;
+	im->sysconf.lblaw[0].bar = CFG_LBLAWBAR0_PRELIM;
+	im->sysconf.lblaw[0].ar = CFG_LBLAWAR0_PRELIM;
+#else
+#error 	CFG_BR0_PRELIM, CFG_OR0_PRELIM, CFG_LBLAWBAR0_PRELIM & CFG_LBLAWAR0_PRELIM must be defined
+#endif
+
+#if defined(CFG_BR1_PRELIM)  \
+	&& defined(CFG_OR1_PRELIM) \
+	&& defined(CFG_LBLAWBAR1_PRELIM) \
+	&& defined(CFG_LBLAWAR1_PRELIM)
+	im->lbus.bank[1].br = CFG_BR1_PRELIM;
+	im->lbus.bank[1].or = CFG_OR1_PRELIM;
+	im->sysconf.lblaw[1].bar = CFG_LBLAWBAR1_PRELIM;
+	im->sysconf.lblaw[1].ar = CFG_LBLAWAR1_PRELIM;
+#endif
+#if defined(CFG_BR2_PRELIM)  \
+	&& defined(CFG_OR2_PRELIM) \
+	&& defined(CFG_LBLAWBAR2_PRELIM) \
+	&& defined(CFG_LBLAWAR2_PRELIM)
+	im->lbus.bank[2].br = CFG_BR2_PRELIM;
+	im->lbus.bank[2].or = CFG_OR2_PRELIM;
+	im->sysconf.lblaw[2].bar = CFG_LBLAWBAR2_PRELIM;
+	im->sysconf.lblaw[2].ar = CFG_LBLAWAR2_PRELIM;
+#endif
+#if defined(CFG_BR3_PRELIM)  \
+	&& defined(CFG_OR3_PRELIM) \
+	&& defined(CFG_LBLAWBAR3_PRELIM) \
+	&& defined(CFG_LBLAWAR3_PRELIM)
+	im->lbus.bank[3].br = CFG_BR3_PRELIM;
+	im->lbus.bank[3].or = CFG_OR3_PRELIM;
+	im->sysconf.lblaw[3].bar = CFG_LBLAWBAR3_PRELIM;
+	im->sysconf.lblaw[3].ar = CFG_LBLAWAR3_PRELIM;
+#endif
+#if defined(CFG_BR4_PRELIM)  \
+	&& defined(CFG_OR4_PRELIM) \
+	&& defined(CFG_LBLAWBAR4_PRELIM) \
+	&& defined(CFG_LBLAWAR4_PRELIM)
+	im->lbus.bank[4].br = CFG_BR4_PRELIM;
+	im->lbus.bank[4].or = CFG_OR4_PRELIM;
+	im->sysconf.lblaw[4].bar = CFG_LBLAWBAR4_PRELIM;
+	im->sysconf.lblaw[4].ar = CFG_LBLAWAR4_PRELIM;
+#endif
+#if defined(CFG_BR5_PRELIM)  \
+	&& defined(CFG_OR5_PRELIM) \
+	&& defined(CFG_LBLAWBAR5_PRELIM) \
+	&& defined(CFG_LBLAWAR5_PRELIM)
+	im->lbus.bank[5].br = CFG_BR5_PRELIM;
+	im->lbus.bank[5].or = CFG_OR5_PRELIM;
+	im->sysconf.lblaw[5].bar = CFG_LBLAWBAR5_PRELIM;
+	im->sysconf.lblaw[5].ar = CFG_LBLAWAR5_PRELIM;
+#endif
+#if defined(CFG_BR6_PRELIM)  \
+	&& defined(CFG_OR6_PRELIM) \
+	&& defined(CFG_LBLAWBAR6_PRELIM) \
+	&& defined(CFG_LBLAWAR6_PRELIM)
+	im->lbus.bank[6].br = CFG_BR6_PRELIM;
+	im->lbus.bank[6].or = CFG_OR6_PRELIM;
+	im->sysconf.lblaw[6].bar = CFG_LBLAWBAR6_PRELIM;
+	im->sysconf.lblaw[6].ar = CFG_LBLAWAR6_PRELIM;
+#endif
+#if defined(CFG_BR7_PRELIM)  \
+	&& defined(CFG_OR7_PRELIM) \
+	&& defined(CFG_LBLAWBAR7_PRELIM) \
+	&& defined(CFG_LBLAWAR7_PRELIM)
+	im->lbus.bank[7].br = CFG_BR7_PRELIM;
+	im->lbus.bank[7].or = CFG_OR7_PRELIM;
+	im->sysconf.lblaw[7].bar = CFG_LBLAWBAR7_PRELIM;
+	im->sysconf.lblaw[7].ar = CFG_LBLAWAR7_PRELIM;
+#endif
+}
+
+
+/*
+ * Initialize higher level parts of CPU like time base and timers.
+ */
+
+int cpu_init_r (void)
+{
+	return 0;
+}