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-rw-r--r--arch/powerpc/cpu/mpc512x/Makefile63
-rw-r--r--arch/powerpc/cpu/mpc512x/asm-offsets.h15
-rw-r--r--arch/powerpc/cpu/mpc512x/cache.c33
-rw-r--r--arch/powerpc/cpu/mpc512x/config.mk26
-rw-r--r--arch/powerpc/cpu/mpc512x/cpu.c216
-rw-r--r--arch/powerpc/cpu/mpc512x/cpu_init.c212
-rw-r--r--arch/powerpc/cpu/mpc512x/diu.c60
-rw-r--r--arch/powerpc/cpu/mpc512x/fixed_sdram.c172
-rw-r--r--arch/powerpc/cpu/mpc512x/i2c.c402
-rw-r--r--arch/powerpc/cpu/mpc512x/ide.c128
-rw-r--r--arch/powerpc/cpu/mpc512x/interrupts.c61
-rw-r--r--arch/powerpc/cpu/mpc512x/iopin.c103
-rw-r--r--arch/powerpc/cpu/mpc512x/pci.c225
-rw-r--r--arch/powerpc/cpu/mpc512x/serial.c459
-rw-r--r--arch/powerpc/cpu/mpc512x/speed.c153
-rw-r--r--arch/powerpc/cpu/mpc512x/start.S708
-rw-r--r--arch/powerpc/cpu/mpc512x/traps.c204
-rw-r--r--arch/powerpc/cpu/mpc512x/u-boot.lds90
18 files changed, 3330 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc512x/Makefile b/arch/powerpc/cpu/mpc512x/Makefile
new file mode 100644
index 0000000..4f4c9ec
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/Makefile
@@ -0,0 +1,63 @@
+#
+# (C) Copyright 2007-2009 DENX Software Engineering
+#
+# 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 $(TOPDIR)/config.mk
+
+$(shell mkdir -p $(OBJTREE)/board/freescale/common)
+
+LIB = $(obj)lib$(CPU).o
+
+START = start.o
+COBJS-y := cpu.o
+COBJS-y += traps.o
+COBJS-y += cpu_init.o
+COBJS-y += fixed_sdram.o
+COBJS-y += i2c.o
+COBJS-y += interrupts.o
+COBJS-y += iopin.o
+COBJS-y += serial.o
+COBJS-y += speed.o
+COBJS-$(CONFIG_FSL_DIU_FB) += diu.o
+COBJS-$(CONFIG_CMD_IDE) += ide.o
+COBJS-$(CONFIG_PCI) += pci.o
+
+# Stub implementations of cache management functions for USB
+COBJS-$(CONFIG_USB_EHCI) += cache.o
+
+COBJS := $(COBJS-y)
+SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
+START := $(addprefix $(obj),$(START))
+
+all: $(obj).depend $(START) $(LIB)
+
+$(LIB): $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/arch/powerpc/cpu/mpc512x/asm-offsets.h b/arch/powerpc/cpu/mpc512x/asm-offsets.h
new file mode 100644
index 0000000..957d4be
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/asm-offsets.h
@@ -0,0 +1,15 @@
+/*
+ * needed for arch/powerpc/cpu/mpc512x/start.S
+ *
+ * These should be auto-generated
+ */
+#define LPCS0AW 0x0024
+#define SRAMBAR 0x00C4
+#define SWCRR 0x0904
+#define LPC_OFFSET 0x10000
+#define CS0_CONFIG 0x00000
+#define CS_CTRL 0x00020
+#define CS_CTRL_ME 0x01000000 /* CS Master Enable bit */
+
+#define EXC_OFF_SYS_RESET 0x0100
+#define _START_OFFSET EXC_OFF_SYS_RESET
diff --git a/arch/powerpc/cpu/mpc512x/cache.c b/arch/powerpc/cpu/mpc512x/cache.c
new file mode 100644
index 0000000..2a08b65
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/cache.c
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2012 Marek Vasut <marex@denx.de>
+ *
+ * This file contains stub implementation of
+ * invalidate_dcache_range()
+ * flush_dcache_range()
+ *
+ * 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
+ */
+
+void invalidate_dcache_range(unsigned long start, unsigned long stop)
+{
+}
+
+void flush_dcache_range(unsigned long start, unsigned long stop)
+{
+}
diff --git a/arch/powerpc/cpu/mpc512x/config.mk b/arch/powerpc/cpu/mpc512x/config.mk
new file mode 100644
index 0000000..8fceded
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/config.mk
@@ -0,0 +1,26 @@
+#
+# (C) Copyright 2007-2010 DENX Software Engineering
+#
+# 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
+#
+
+PLATFORM_RELFLAGS += -meabi
+
+PLATFORM_CPPFLAGS += -DCONFIG_MPC512X -DCONFIG_E300 \
+ -ffixed-r2 -msoft-float -mcpu=603e
diff --git a/arch/powerpc/cpu/mpc512x/cpu.c b/arch/powerpc/cpu/mpc512x/cpu.c
new file mode 100644
index 0000000..bb03c6d
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/cpu.c
@@ -0,0 +1,216 @@
+/*
+ * (C) Copyright 2007-2010 DENX Software Engineering
+ * Copyright (C) 2004-2006 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
+ */
+
+/*
+ * CPU specific code for the MPC512x family.
+ *
+ * Derived from the MPC83xx code.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <net.h>
+#include <netdev.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+#if defined(CONFIG_OF_LIBFDT)
+#include <fdt_support.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkcpu (void)
+{
+ volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
+ ulong clock = gd->cpu_clk;
+ u32 pvr = get_pvr ();
+ u32 spridr = in_be32(&immr->sysconf.spridr);
+ char buf1[32], buf2[32];
+
+ puts ("CPU: ");
+
+ switch (spridr & 0xffff0000) {
+ case SPR_5121E:
+ puts ("MPC5121e ");
+ break;
+ default:
+ printf ("Unknown part ID %08x ", spridr & 0xffff0000);
+ }
+ printf ("rev. %d.%d, Core ", SVR_MJREV (spridr), SVR_MNREV (spridr));
+
+ switch (pvr & 0xffff0000) {
+ case PVR_E300C4:
+ puts ("e300c4 ");
+ break;
+ default:
+ puts ("unknown ");
+ }
+ printf ("at %s MHz, CSB at %s MHz (RSR=0x%04lx)\n",
+ strmhz(buf1, clock),
+ strmhz(buf2, gd->arch.csb_clk),
+ gd->arch.reset_status & 0xffff);
+ return 0;
+}
+
+
+int
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+{
+ ulong msr;
+ volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
+
+ /* Interrupts and MMU off */
+ __asm__ __volatile__ ("mfmsr %0":"=r" (msr):);
+
+ msr &= ~( MSR_EE | MSR_IR | MSR_DR);
+ __asm__ __volatile__ ("mtmsr %0"::"r" (msr));
+
+ /*
+ * Enable Reset Control Reg - "RSTE" is the magic word that let us go
+ */
+ out_be32(&immap->reset.rpr, 0x52535445);
+
+ /* Verify Reset Control Reg is enabled */
+ while (!(in_be32(&immap->reset.rcer) & RCER_CRE))
+ ;
+
+ printf ("Resetting the board.\n");
+ udelay(200);
+
+ /* Perform reset */
+ out_be32(&immap->reset.rcr, RCR_SWHR);
+
+ /* Unreached... */
+ 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_WATCHDOG)
+void watchdog_reset (void)
+{
+ int re_enable = disable_interrupts ();
+
+ /* Reset watchdog */
+ volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
+ out_be32(&immr->wdt.swsrr, 0x556c);
+ out_be32(&immr->wdt.swsrr, 0xaa39);
+
+ if (re_enable)
+ enable_interrupts ();
+}
+#endif
+
+#ifdef CONFIG_OF_LIBFDT
+
+#ifdef CONFIG_OF_SUPPORT_OLD_DEVICE_TREES
+/*
+ * fdt setup for old device trees
+ * fix up
+ * cpu clocks
+ * soc clocks
+ * ethernet addresses
+ */
+static void old_ft_cpu_setup(void *blob, bd_t *bd)
+{
+ /*
+ * avoid fixing up by path because that
+ * produces scary error messages
+ */
+ uchar enetaddr[6];
+
+ /*
+ * old device trees have ethernet nodes with
+ * device_type = "network"
+ */
+ eth_getenv_enetaddr("ethaddr", enetaddr);
+ do_fixup_by_prop(blob, "device_type", "network", 8,
+ "local-mac-address", enetaddr, 6, 0);
+ do_fixup_by_prop(blob, "device_type", "network", 8,
+ "address", enetaddr, 6, 0);
+ /*
+ * old device trees have soc nodes with
+ * device_type = "soc"
+ */
+ do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
+ "bus-frequency", bd->bi_ipsfreq, 0);
+}
+#endif
+
+static void ft_clock_setup(void *blob, bd_t *bd)
+{
+ char *cpu_path = "/cpus/" OF_CPU;
+
+ /*
+ * fixup cpu clocks using path
+ */
+ 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);
+ /*
+ * fixup soc clocks using compatible
+ */
+ do_fixup_by_compat_u32(blob, OF_SOC_COMPAT,
+ "bus-frequency", bd->bi_ipsfreq, 1);
+}
+
+void ft_cpu_setup(void *blob, bd_t *bd)
+{
+#ifdef CONFIG_OF_SUPPORT_OLD_DEVICE_TREES
+ old_ft_cpu_setup(blob, bd);
+#endif
+ ft_clock_setup(blob, bd);
+#ifdef CONFIG_HAS_ETH0
+ fdt_fixup_ethernet(blob);
+#endif
+ fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
+}
+#endif
+
+#ifdef CONFIG_MPC512x_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 mpc512x_fec_initialize(bis);
+}
+#endif
diff --git a/arch/powerpc/cpu/mpc512x/cpu_init.c b/arch/powerpc/cpu/mpc512x/cpu_init.c
new file mode 100644
index 0000000..0e20ded
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/cpu_init.c
@@ -0,0 +1,212 @@
+/*
+ * Copyright (C) 2004-2006 Freescale Semiconductor, Inc.
+ * Copyright (C) 2007-2009 DENX Software Engineering
+ *
+ * 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
+ *
+ * Derived from the MPC83xx code.
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/mpc512x.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Set up the memory map, initialize registers,
+ */
+void cpu_init_f (volatile immap_t * im)
+{
+ u32 ips_div;
+
+ /* Pointer is writable since we allocated a register for it */
+ gd = (gd_t *) (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET);
+
+ /* Clear initial global data */
+ memset ((void *) gd, 0, sizeof (gd_t));
+
+ /* Local Window and chip select configuration */
+#if defined(CONFIG_SYS_CS0_START) && defined(CONFIG_SYS_CS0_SIZE)
+ out_be32(&im->sysconf.lpcs0aw,
+ CSAW_START(CONFIG_SYS_CS0_START) |
+ CSAW_STOP(CONFIG_SYS_CS0_START, CONFIG_SYS_CS0_SIZE));
+ sync_law(&im->sysconf.lpcs0aw);
+#endif
+#if defined(CONFIG_SYS_CS0_CFG)
+ out_be32(&im->lpc.cs_cfg[0], CONFIG_SYS_CS0_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS1_START) && defined(CONFIG_SYS_CS1_SIZE)
+ out_be32(&im->sysconf.lpcs1aw,
+ CSAW_START(CONFIG_SYS_CS1_START) |
+ CSAW_STOP(CONFIG_SYS_CS1_START, CONFIG_SYS_CS1_SIZE));
+ sync_law(&im->sysconf.lpcs1aw);
+#endif
+#if defined(CONFIG_SYS_CS1_CFG)
+ out_be32(&im->lpc.cs_cfg[1], CONFIG_SYS_CS1_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS2_START) && (defined CONFIG_SYS_CS2_SIZE)
+ out_be32(&im->sysconf.lpcs2aw,
+ CSAW_START(CONFIG_SYS_CS2_START) |
+ CSAW_STOP(CONFIG_SYS_CS2_START, CONFIG_SYS_CS2_SIZE));
+ sync_law(&im->sysconf.lpcs2aw);
+#endif
+#if defined(CONFIG_SYS_CS2_CFG)
+ out_be32(&im->lpc.cs_cfg[2], CONFIG_SYS_CS2_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS3_START) && defined(CONFIG_SYS_CS3_SIZE)
+ out_be32(&im->sysconf.lpcs3aw,
+ CSAW_START(CONFIG_SYS_CS3_START) |
+ CSAW_STOP(CONFIG_SYS_CS3_START, CONFIG_SYS_CS3_SIZE));
+ sync_law(&im->sysconf.lpcs3aw);
+#endif
+#if defined(CONFIG_SYS_CS3_CFG)
+ out_be32(&im->lpc.cs_cfg[3], CONFIG_SYS_CS3_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS4_START) && defined(CONFIG_SYS_CS4_SIZE)
+ out_be32(&im->sysconf.lpcs4aw,
+ CSAW_START(CONFIG_SYS_CS4_START) |
+ CSAW_STOP(CONFIG_SYS_CS4_START, CONFIG_SYS_CS4_SIZE));
+ sync_law(&im->sysconf.lpcs4aw);
+#endif
+#if defined(CONFIG_SYS_CS4_CFG)
+ out_be32(&im->lpc.cs_cfg[4], CONFIG_SYS_CS4_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS5_START) && defined(CONFIG_SYS_CS5_SIZE)
+ out_be32(&im->sysconf.lpcs5aw,
+ CSAW_START(CONFIG_SYS_CS5_START) |
+ CSAW_STOP(CONFIG_SYS_CS5_START, CONFIG_SYS_CS5_SIZE));
+ sync_law(&im->sysconf.lpcs5aw);
+#endif
+#if defined(CONFIG_SYS_CS5_CFG)
+ out_be32(&im->lpc.cs_cfg[5], CONFIG_SYS_CS5_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS6_START) && defined(CONFIG_SYS_CS6_SIZE)
+ out_be32(&im->sysconf.lpcs6aw,
+ CSAW_START(CONFIG_SYS_CS6_START) |
+ CSAW_STOP(CONFIG_SYS_CS6_START, CONFIG_SYS_CS6_SIZE));
+ sync_law(&im->sysconf.lpcs6aw);
+#endif
+#if defined(CONFIG_SYS_CS6_CFG)
+ out_be32(&im->lpc.cs_cfg[6], CONFIG_SYS_CS6_CFG);
+#endif
+
+#if defined(CONFIG_SYS_CS7_START) && defined(CONFIG_SYS_CS7_SIZE)
+ out_be32(&im->sysconf.lpcs7aw,
+ CSAW_START(CONFIG_SYS_CS7_START) |
+ CSAW_STOP(CONFIG_SYS_CS7_START, CONFIG_SYS_CS7_SIZE));
+ sync_law(&im->sysconf.lpcs7aw);
+#endif
+#if defined(CONFIG_SYS_CS7_CFG)
+ out_be32(&im->lpc.cs_cfg[7], CONFIG_SYS_CS7_CFG);
+#endif
+
+#if defined CONFIG_SYS_CS_ALETIMING
+ if (SVR_MJREV(in_be32(&im->sysconf.spridr)) >= 2)
+ out_be32(&im->lpc.altr, CONFIG_SYS_CS_ALETIMING);
+#endif
+#if defined CONFIG_SYS_CS_BURST
+ out_be32(&im->lpc.cs_bcr, CONFIG_SYS_CS_BURST);
+#endif
+#if defined CONFIG_SYS_CS_DEADCYCLE
+ out_be32(&im->lpc.cs_dccr, CONFIG_SYS_CS_DEADCYCLE);
+#endif
+#if defined CONFIG_SYS_CS_HOLDCYCLE
+ out_be32(&im->lpc.cs_hccr, CONFIG_SYS_CS_HOLDCYCLE);
+#endif
+
+ /* system performance tweaking */
+
+#ifdef CONFIG_SYS_ACR_PIPE_DEP
+ /* Arbiter pipeline depth */
+ out_be32(&im->arbiter.acr,
+ (im->arbiter.acr & ~ACR_PIPE_DEP) |
+ (CONFIG_SYS_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT)
+ );
+#endif
+
+#ifdef CONFIG_SYS_ACR_RPTCNT
+ /* Arbiter repeat count */
+ out_be32(im->arbiter.acr,
+ (im->arbiter.acr & ~(ACR_RPTCNT)) |
+ (CONFIG_SYS_ACR_RPTCNT << ACR_RPTCNT_SHIFT)
+ );
+#endif
+
+ /* RSR - Reset Status Register - clear all status */
+ gd->arch.reset_status = im->reset.rsr;
+ out_be32(&im->reset.rsr, ~RSR_RES);
+
+ /*
+ * RMR - Reset Mode Register - enable checkstop reset
+ */
+ out_be32(&im->reset.rmr, RMR_CSRE & (1 << RMR_CSRE_SHIFT));
+
+ /* Set IPS-CSB divider: IPS = 1/2 CSB */
+ ips_div = in_be32(&im->clk.scfr[0]);
+ ips_div &= ~(SCFR1_IPS_DIV_MASK);
+ ips_div |= SCFR1_IPS_DIV << SCFR1_IPS_DIV_SHIFT;
+ out_be32(&im->clk.scfr[0], ips_div);
+
+#ifdef SCFR1_LPC_DIV
+ clrsetbits_be32(&im->clk.scfr[0], SCFR1_LPC_DIV_MASK,
+ SCFR1_LPC_DIV << SCFR1_LPC_DIV_SHIFT);
+#endif
+
+#ifdef SCFR1_NFC_DIV
+ clrsetbits_be32(&im->clk.scfr[0], SCFR1_NFC_DIV_MASK,
+ SCFR1_NFC_DIV << SCFR1_NFC_DIV_SHIFT);
+#endif
+
+#ifdef SCFR1_DIU_DIV
+ clrsetbits_be32(&im->clk.scfr[0], SCFR1_DIU_DIV_MASK,
+ SCFR1_DIU_DIV << SCFR1_DIU_DIV_SHIFT);
+#endif
+
+ /*
+ * Enable Time Base/Decrementer
+ *
+ * NOTICE: TB needs to be enabled as early as possible in order to
+ * have udelay() working; if not enabled, usually leads to a hang, like
+ * during FLASH chip identification etc.
+ */
+ setbits_be32(&im->sysconf.spcr, SPCR_TBEN);
+
+ /*
+ * Enable clocks
+ */
+ out_be32(&im->clk.sccr[0], SCCR1_CLOCKS_EN);
+ out_be32(&im->clk.sccr[1], SCCR2_CLOCKS_EN);
+#if defined(CONFIG_FSL_IIM) || defined(CONFIG_CMD_FUSE)
+ setbits_be32(&im->clk.sccr[1], CLOCK_SCCR2_IIM_EN);
+#endif
+}
+
+int cpu_init_r (void)
+{
+ return 0;
+}
diff --git a/arch/powerpc/cpu/mpc512x/diu.c b/arch/powerpc/cpu/mpc512x/diu.c
new file mode 100644
index 0000000..b7db249
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/diu.c
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ * York Sun <yorksun@freescale.com>
+ *
+ * FSL DIU Framebuffer driver
+ *
+ * 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 <common.h>
+#include <command.h>
+#include <asm/io.h>
+
+#include <fsl_diu_fb.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+ volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+ volatile clk512x_t *clk = &immap->clk;
+ volatile unsigned int *clkdvdr = &clk->scfr[0];
+ unsigned long speed_ccb, temp, pixval;
+
+ speed_ccb = get_bus_freq(0) * 4;
+ temp = 1000000000/pixclock;
+ temp *= 1000;
+ pixval = speed_ccb / temp;
+ debug("DIU pixval = %lu\n", pixval);
+
+ /* Modify PXCLK in GUTS CLKDVDR */
+ debug("DIU: Current value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
+ temp = in_be32(clkdvdr) & 0xFFFFFF00;
+ out_be32(clkdvdr, temp | (pixval & 0xFF));
+ debug("DIU: Modified value of CLKDVDR = 0x%08x\n", in_be32(clkdvdr));
+}
+
+int platform_diu_init(unsigned int xres, unsigned int yres, const char *port)
+{
+ unsigned int pixel_format = 0x88883316;
+
+ debug("mpc5121_diu_init\n");
+ return fsl_diu_init(xres, yres, pixel_format, 0);
+}
diff --git a/arch/powerpc/cpu/mpc512x/fixed_sdram.c b/arch/powerpc/cpu/mpc512x/fixed_sdram.c
new file mode 100644
index 0000000..6635fb0
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/fixed_sdram.c
@@ -0,0 +1,172 @@
+/*
+ * (C) Copyright 2007-2009 DENX Software Engineering
+ *
+ * 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 <common.h>
+#include <asm/io.h>
+#include <asm/mpc512x.h>
+
+/*
+ * MDDRC Config Runtime Settings
+ */
+ddr512x_config_t default_mddrc_config = {
+ .ddr_sys_config = CONFIG_SYS_MDDRC_SYS_CFG,
+ .ddr_time_config0 = CONFIG_SYS_MDDRC_TIME_CFG0,
+ .ddr_time_config1 = CONFIG_SYS_MDDRC_TIME_CFG1,
+ .ddr_time_config2 = CONFIG_SYS_MDDRC_TIME_CFG2,
+};
+
+u32 default_init_seq[] = {
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_PCHG_ALL,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_RFSH,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_RFSH,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_MICRON_INIT_DEV_OP,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_EM2,
+ CONFIG_SYS_DDRCMD_NOP,
+ CONFIG_SYS_DDRCMD_PCHG_ALL,
+ CONFIG_SYS_DDRCMD_EM2,
+ CONFIG_SYS_DDRCMD_EM3,
+ CONFIG_SYS_DDRCMD_EN_DLL,
+ CONFIG_SYS_MICRON_INIT_DEV_OP,
+ CONFIG_SYS_DDRCMD_PCHG_ALL,
+ CONFIG_SYS_DDRCMD_RFSH,
+ CONFIG_SYS_MICRON_INIT_DEV_OP,
+ CONFIG_SYS_DDRCMD_OCD_DEFAULT,
+ CONFIG_SYS_DDRCMD_PCHG_ALL,
+ CONFIG_SYS_DDRCMD_NOP
+};
+
+/*
+ * fixed sdram init:
+ * The board doesn't use memory modules that have serial presence
+ * detect or similar mechanism for discovery of the DRAM settings
+ */
+long int fixed_sdram(ddr512x_config_t *mddrc_config,
+ u32 *dram_init_seq, int seq_sz)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 msize = CONFIG_SYS_MAX_RAM_SIZE;
+ u32 msize_log2 = __ilog2(msize);
+ u32 i;
+
+ /* take default settings and init sequence if necessary */
+ if (mddrc_config == NULL)
+ mddrc_config = &default_mddrc_config;
+ if (dram_init_seq == NULL) {
+ dram_init_seq = default_init_seq;
+ seq_sz = sizeof(default_init_seq)/sizeof(u32);
+ }
+
+ /* Initialize IO Control */
+ out_be32(&im->io_ctrl.io_control_mem, CONFIG_SYS_IOCTRL_MUX_DDR);
+
+ /* Initialize DDR Local Window */
+ out_be32(&im->sysconf.ddrlaw.bar, CONFIG_SYS_DDR_BASE & 0xFFFFF000);
+ out_be32(&im->sysconf.ddrlaw.ar, msize_log2 - 1);
+ sync_law(&im->sysconf.ddrlaw.ar);
+
+ /* DDR Enable */
+ /*
+ * the "enable" combination: DRAM controller out of reset,
+ * clock enabled, command mode -- BUT leave CKE low for now
+ */
+ i = MDDRC_SYS_CFG_EN & ~MDDRC_SYS_CFG_CKE_MASK;
+ out_be32(&im->mddrc.ddr_sys_config, i);
+ /* maintain 200 microseconds of stable power and clock */
+ udelay(200);
+ /* apply a NOP, it shouldn't harm */
+ out_be32(&im->mddrc.ddr_command, CONFIG_SYS_DDRCMD_NOP);
+ /* now assert CKE (high) */
+ i |= MDDRC_SYS_CFG_CKE_MASK;
+ out_be32(&im->mddrc.ddr_sys_config, i);
+
+ /* Initialize DDR Priority Manager */
+ out_be32(&im->mddrc.prioman_config1, CONFIG_SYS_MDDRCGRP_PM_CFG1);
+ out_be32(&im->mddrc.prioman_config2, CONFIG_SYS_MDDRCGRP_PM_CFG2);
+ out_be32(&im->mddrc.hiprio_config, CONFIG_SYS_MDDRCGRP_HIPRIO_CFG);
+ out_be32(&im->mddrc.lut_table0_main_upper, CONFIG_SYS_MDDRCGRP_LUT0_MU);
+ out_be32(&im->mddrc.lut_table0_main_lower, CONFIG_SYS_MDDRCGRP_LUT0_ML);
+ out_be32(&im->mddrc.lut_table1_main_upper, CONFIG_SYS_MDDRCGRP_LUT1_MU);
+ out_be32(&im->mddrc.lut_table1_main_lower, CONFIG_SYS_MDDRCGRP_LUT1_ML);
+ out_be32(&im->mddrc.lut_table2_main_upper, CONFIG_SYS_MDDRCGRP_LUT2_MU);
+ out_be32(&im->mddrc.lut_table2_main_lower, CONFIG_SYS_MDDRCGRP_LUT2_ML);
+ out_be32(&im->mddrc.lut_table3_main_upper, CONFIG_SYS_MDDRCGRP_LUT3_MU);
+ out_be32(&im->mddrc.lut_table3_main_lower, CONFIG_SYS_MDDRCGRP_LUT3_ML);
+ out_be32(&im->mddrc.lut_table4_main_upper, CONFIG_SYS_MDDRCGRP_LUT4_MU);
+ out_be32(&im->mddrc.lut_table4_main_lower, CONFIG_SYS_MDDRCGRP_LUT4_ML);
+ out_be32(&im->mddrc.lut_table0_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT0_AU);
+ out_be32(&im->mddrc.lut_table0_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT0_AL);
+ out_be32(&im->mddrc.lut_table1_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT1_AU);
+ out_be32(&im->mddrc.lut_table1_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT1_AL);
+ out_be32(&im->mddrc.lut_table2_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT2_AU);
+ out_be32(&im->mddrc.lut_table2_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT2_AL);
+ out_be32(&im->mddrc.lut_table3_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT3_AU);
+ out_be32(&im->mddrc.lut_table3_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT3_AL);
+ out_be32(&im->mddrc.lut_table4_alternate_upper, CONFIG_SYS_MDDRCGRP_LUT4_AU);
+ out_be32(&im->mddrc.lut_table4_alternate_lower, CONFIG_SYS_MDDRCGRP_LUT4_AL);
+
+ /*
+ * Initialize MDDRC
+ * put MDDRC in CMD mode and
+ * set the max time between refreshes to 0 during init process
+ */
+ out_be32(&im->mddrc.ddr_sys_config,
+ mddrc_config->ddr_sys_config | MDDRC_SYS_CFG_CMD_MASK);
+ out_be32(&im->mddrc.ddr_time_config0,
+ mddrc_config->ddr_time_config0 & MDDRC_REFRESH_ZERO_MASK);
+ out_be32(&im->mddrc.ddr_time_config1,
+ mddrc_config->ddr_time_config1);
+ out_be32(&im->mddrc.ddr_time_config2,
+ mddrc_config->ddr_time_config2);
+
+ /* Initialize DDR with either default or supplied init sequence */
+ for (i = 0; i < seq_sz; i++)
+ out_be32(&im->mddrc.ddr_command, dram_init_seq[i]);
+
+ /* Start MDDRC */
+ out_be32(&im->mddrc.ddr_time_config0, mddrc_config->ddr_time_config0);
+ out_be32(&im->mddrc.ddr_sys_config, mddrc_config->ddr_sys_config);
+
+ /* Allow for the DLL to startup before accessing data */
+ udelay(10);
+
+ msize = get_ram_size(CONFIG_SYS_DDR_BASE, CONFIG_SYS_MAX_RAM_SIZE);
+ /* Fix DDR Local Window for new size */
+ out_be32(&im->sysconf.ddrlaw.ar, __ilog2(msize) - 1);
+ sync_law(&im->sysconf.ddrlaw.ar);
+
+ return msize;
+}
diff --git a/arch/powerpc/cpu/mpc512x/i2c.c b/arch/powerpc/cpu/mpc512x/i2c.c
new file mode 100644
index 0000000..59040f8
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/i2c.c
@@ -0,0 +1,402 @@
+/*
+ * (C) Copyright 2003 - 2009
+ * 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
+ *
+ * Based on the MPC5xxx code.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_HARD_I2C
+
+#include <i2c.h>
+
+/* by default set I2C bus 0 active */
+static unsigned int bus_num __attribute__ ((section (".data"))) = 0;
+
+#define I2C_TIMEOUT 100
+#define I2C_RETRIES 3
+
+struct mpc512x_i2c_tap {
+ int scl2tap;
+ int tap2tap;
+};
+
+static int mpc_reg_in(volatile u32 *reg);
+static void mpc_reg_out(volatile u32 *reg, int val, int mask);
+static int wait_for_bb(void);
+static int wait_for_pin(int *status);
+static int do_address(uchar chip, char rdwr_flag);
+static int send_bytes(uchar chip, char *buf, int len);
+static int receive_bytes(uchar chip, char *buf, int len);
+static int mpc_get_fdr(int);
+
+static int mpc_reg_in (volatile u32 *reg)
+{
+ int ret = in_be32(reg) >> 24;
+
+ return ret;
+}
+
+static void mpc_reg_out (volatile u32 *reg, int val, int mask)
+{
+ if (!mask) {
+ out_be32(reg, val << 24);
+ } else {
+ clrsetbits_be32(reg, mask << 24, (val & mask) << 24);
+ }
+}
+
+static int wait_for_bb (void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ int timeout = I2C_TIMEOUT;
+ int status;
+
+ status = mpc_reg_in (&regs->msr);
+
+ while (timeout-- && (status & I2C_BB)) {
+ mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+ (void)mpc_reg_in(&regs->mdr);
+ mpc_reg_out (&regs->mcr, 0, I2C_STA);
+ mpc_reg_out (&regs->mcr, 0, 0);
+ mpc_reg_out (&regs->mcr, I2C_EN, 0);
+
+ udelay (1000);
+ status = mpc_reg_in (&regs->msr);
+ }
+
+ return (status & I2C_BB);
+}
+
+static int wait_for_pin (int *status)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ int timeout = I2C_TIMEOUT;
+
+ *status = mpc_reg_in (&regs->msr);
+
+ while (timeout-- && !(*status & I2C_IF)) {
+ udelay (1000);
+ *status = mpc_reg_in (&regs->msr);
+ }
+
+ if (!(*status & I2C_IF)) {
+ return -1;
+ }
+
+ mpc_reg_out (&regs->msr, 0, I2C_IF);
+
+ return 0;
+}
+
+static int do_address (uchar chip, char rdwr_flag)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ int status;
+
+ chip <<= 1;
+
+ if (rdwr_flag) {
+ chip |= 1;
+ }
+
+ mpc_reg_out (&regs->mcr, I2C_TX, I2C_TX);
+ mpc_reg_out (&regs->mdr, chip, 0);
+
+ if (wait_for_pin (&status)) {
+ return -2;
+ }
+
+ if (status & I2C_RXAK) {
+ return -3;
+ }
+
+ return 0;
+}
+
+static int send_bytes (uchar chip, char *buf, int len)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ int wrcount;
+ int status;
+
+ for (wrcount = 0; wrcount < len; ++wrcount) {
+
+ mpc_reg_out (&regs->mdr, buf[wrcount], 0);
+
+ if (wait_for_pin (&status)) {
+ break;
+ }
+
+ if (status & I2C_RXAK) {
+ break;
+ }
+
+ }
+
+ return !(wrcount == len);
+}
+
+static int receive_bytes (uchar chip, char *buf, int len)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ int dummy = 1;
+ int rdcount = 0;
+ int status;
+ int i;
+
+ mpc_reg_out (&regs->mcr, 0, I2C_TX);
+
+ for (i = 0; i < len; ++i) {
+ buf[rdcount] = mpc_reg_in (&regs->mdr);
+
+ if (dummy) {
+ dummy = 0;
+ } else {
+ rdcount++;
+ }
+
+ if (wait_for_pin (&status)) {
+ return -4;
+ }
+ }
+
+ mpc_reg_out (&regs->mcr, I2C_TXAK, I2C_TXAK);
+ buf[rdcount++] = mpc_reg_in (&regs->mdr);
+
+ if (wait_for_pin (&status)) {
+ return -5;
+ }
+
+ mpc_reg_out (&regs->mcr, 0, I2C_TXAK);
+
+ return 0;
+}
+
+/**************** I2C API ****************/
+
+void i2c_init (int speed, int saddr)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ int i;
+
+ for (i = 0; i < I2C_BUS_CNT; i++){
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[i];
+
+ mpc_reg_out (&regs->mcr, 0, 0);
+
+ /* Set clock */
+ mpc_reg_out (&regs->mfdr, mpc_get_fdr (speed), 0);
+ mpc_reg_out (&regs->madr, saddr << 1, 0);
+
+ /* Enable module */
+ mpc_reg_out (&regs->mcr, I2C_EN, I2C_INIT_MASK);
+ mpc_reg_out (&regs->msr, 0, I2C_IF);
+ }
+
+ /* Disable interrupts */
+ out_be32(&im->i2c.icr, 0);
+
+ /* Turn off filters */
+ out_be32(&im->i2c.mifr, 0);
+}
+
+static int mpc_get_fdr (int speed)
+{
+ static int fdr = -1;
+
+ if (fdr == -1) {
+ ulong best_speed = 0;
+ ulong divider;
+ ulong ips, scl;
+ ulong bestmatch = 0xffffffffUL;
+ int best_i = 0, best_j = 0, i, j;
+ int SCL_Tap[] = { 9, 10, 12, 15, 5, 6, 7, 8};
+ struct mpc512x_i2c_tap scltap[] = {
+ {4, 1},
+ {4, 2},
+ {6, 4},
+ {6, 8},
+ {14, 16},
+ {30, 32},
+ {62, 64},
+ {126, 128}
+ };
+
+ ips = gd->arch.ips_clk;
+ for (i = 7; i >= 0; i--) {
+ for (j = 7; j >= 0; j--) {
+ scl = 2 * (scltap[j].scl2tap +
+ (SCL_Tap[i] - 1) * scltap[j].tap2tap
+ + 2);
+ if (ips <= speed*scl) {
+ if ((speed*scl - ips) < bestmatch) {
+ bestmatch = speed*scl - ips;
+ best_i = i;
+ best_j = j;
+ best_speed = ips/scl;
+ }
+ }
+ }
+ }
+ divider = (best_i & 3) | ((best_i & 4) << 3) | (best_j << 2);
+ if (gd->flags & GD_FLG_RELOC) {
+ fdr = divider;
+ } else {
+ debug("%ld kHz, \n", best_speed / 1000);
+ return divider;
+ }
+ }
+
+ return fdr;
+}
+
+int i2c_probe (uchar chip)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ int i;
+
+ for (i = 0; i < I2C_RETRIES; i++) {
+ mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+
+ if (! do_address (chip, 0)) {
+ mpc_reg_out (&regs->mcr, 0, I2C_STA);
+ udelay (500);
+ break;
+ }
+
+ mpc_reg_out (&regs->mcr, 0, I2C_STA);
+ udelay (500);
+ }
+
+ return (i == I2C_RETRIES);
+}
+
+int i2c_read (uchar chip, uint addr, int alen, uchar *buf, int len)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ char xaddr[4];
+ int ret = -1;
+
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+
+ if (wait_for_bb ()) {
+ printf ("i2c_read: bus is busy\n");
+ goto Done;
+ }
+
+ mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+ if (do_address (chip, 0)) {
+ printf ("i2c_read: failed to address chip\n");
+ goto Done;
+ }
+
+ if (send_bytes (chip, &xaddr[4-alen], alen)) {
+ printf ("i2c_read: send_bytes failed\n");
+ goto Done;
+ }
+
+ mpc_reg_out (&regs->mcr, I2C_RSTA, I2C_RSTA);
+ if (do_address (chip, 1)) {
+ printf ("i2c_read: failed to address chip\n");
+ goto Done;
+ }
+
+ if (receive_bytes (chip, (char *)buf, len)) {
+ printf ("i2c_read: receive_bytes failed\n");
+ goto Done;
+ }
+
+ ret = 0;
+Done:
+ mpc_reg_out (&regs->mcr, 0, I2C_STA);
+ return ret;
+}
+
+int i2c_write (uchar chip, uint addr, int alen, uchar *buf, int len)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile i2c512x_dev_t *regs = &im->i2c.dev[bus_num];
+ char xaddr[4];
+ int ret = -1;
+
+ xaddr[0] = (addr >> 24) & 0xFF;
+ xaddr[1] = (addr >> 16) & 0xFF;
+ xaddr[2] = (addr >> 8) & 0xFF;
+ xaddr[3] = addr & 0xFF;
+
+ if (wait_for_bb ()) {
+ printf ("i2c_write: bus is busy\n");
+ goto Done;
+ }
+
+ mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+ if (do_address (chip, 0)) {
+ printf ("i2c_write: failed to address chip\n");
+ goto Done;
+ }
+
+ if (send_bytes (chip, &xaddr[4-alen], alen)) {
+ printf ("i2c_write: send_bytes failed\n");
+ goto Done;
+ }
+
+ if (send_bytes (chip, (char *)buf, len)) {
+ printf ("i2c_write: send_bytes failed\n");
+ goto Done;
+ }
+
+ ret = 0;
+Done:
+ mpc_reg_out (&regs->mcr, 0, I2C_STA);
+ return ret;
+}
+
+int i2c_set_bus_num (unsigned int bus)
+{
+ if (bus >= I2C_BUS_CNT) {
+ return -1;
+ }
+ bus_num = bus;
+
+ return 0;
+}
+
+unsigned int i2c_get_bus_num (void)
+{
+ return bus_num;
+}
+
+#endif /* CONFIG_HARD_I2C */
diff --git a/arch/powerpc/cpu/mpc512x/ide.c b/arch/powerpc/cpu/mpc512x/ide.c
new file mode 100644
index 0000000..7a49673
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/ide.c
@@ -0,0 +1,128 @@
+/*
+ * (C) Copyright 2007-2009 DENX Software Engineering
+ *
+ * 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 <common.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_IDE_RESET)
+
+void ide_set_reset (int idereset)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ debug ("ide_set_reset(%d)\n", idereset);
+
+ if (idereset) {
+ out_be32(&im->pata.pata_ata_control, 0);
+ } else {
+ out_be32(&im->pata.pata_ata_control, FSL_ATA_CTRL_ATA_RST_B);
+ }
+ udelay(100);
+}
+
+void init_ide_reset (void)
+{
+ debug ("init_ide_reset\n");
+
+ /*
+ * Clear the reset bit to reset the interface
+ * cf. RefMan MPC5121EE: 28.4.1 Resetting the ATA Bus
+ */
+ ide_set_reset(1);
+
+ /* Assert the reset bit to enable the interface */
+ ide_set_reset(0);
+
+}
+
+#define CALC_TIMING(t) (t + period - 1) / period
+
+int ide_preinit (void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ long t;
+ const struct {
+ short t0;
+ short t1;
+ short t2_8;
+ short t2_16;
+ short t2i;
+ short t4;
+ short t9;
+ short tA;
+ } pio_specs = {
+ .t0 = 600,
+ .t1 = 70,
+ .t2_8 = 290,
+ .t2_16 = 165,
+ .t2i = 0,
+ .t4 = 30,
+ .t9 = 20,
+ .tA = 50,
+ };
+ union {
+ u32 config;
+ struct {
+ u8 field1;
+ u8 field2;
+ u8 field3;
+ u8 field4;
+ }bytes;
+ } cfg;
+
+ debug ("IDE preinit using PATA peripheral at IMMR-ADDR %08x\n",
+ (u32)&im->pata);
+
+ /* Set the reset bit to 1 to enable the interface */
+ ide_set_reset(0);
+
+ /* Init timings : we use PIO mode 0 timings */
+ t = 1000000000 / gd->arch.ips_clk; /* period in ns */
+ cfg.bytes.field1 = 3;
+ cfg.bytes.field2 = 3;
+ cfg.bytes.field3 = (pio_specs.t1 + t) / t;
+ cfg.bytes.field4 = (pio_specs.t2_8 + t) / t;
+
+ out_be32(&im->pata.pata_time1, cfg.config);
+
+ cfg.bytes.field1 = (pio_specs.t2_8 + t) / t;
+ cfg.bytes.field2 = (pio_specs.tA + t) / t + 2;
+ cfg.bytes.field3 = 1;
+ cfg.bytes.field4 = (pio_specs.t4 + t) / t;
+
+ out_be32(&im->pata.pata_time2, cfg.config);
+
+ cfg.config = in_be32(&im->pata.pata_time3);
+ cfg.bytes.field1 = (pio_specs.t9 + t) / t;
+
+ out_be32(&im->pata.pata_time3, cfg.config);
+
+ debug ("PATA preinit complete.\n");
+
+ return 0;
+}
+
+#endif /* defined(CONFIG_IDE_RESET) */
diff --git a/arch/powerpc/cpu/mpc512x/interrupts.c b/arch/powerpc/cpu/mpc512x/interrupts.c
new file mode 100644
index 0000000..ef7c773
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/interrupts.c
@@ -0,0 +1,61 @@
+/*
+ * (C) Copyright 2000-2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ *
+ * Derived from the MPC83xx code.
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct irq_action {
+ interrupt_handler_t *handler;
+ void *arg;
+ ulong count;
+};
+
+int interrupt_init_cpu (unsigned *decrementer_count)
+{
+ *decrementer_count = get_tbclk () / CONFIG_SYS_HZ;
+
+ return 0;
+}
+
+/*
+ * Install and free an interrupt handler.
+ */
+void
+irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
+{
+}
+
+void irq_free_handler (int irq)
+{
+}
+
+void timer_interrupt_cpu (struct pt_regs *regs)
+{
+ /* nothing to do here */
+ return;
+}
diff --git a/arch/powerpc/cpu/mpc512x/iopin.c b/arch/powerpc/cpu/mpc512x/iopin.c
new file mode 100644
index 0000000..1a39101
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/iopin.c
@@ -0,0 +1,103 @@
+/*
+ * (C) Copyright 2008
+ * Martha J Marx, Silicon Turnkey Express, mmarx@silicontkx.com
+ * mpc512x I/O pin/pad initialization for the ADS5121 board
+ * 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 <common.h>
+#include <linux/types.h>
+#include <asm/io.h>
+
+void iopin_initialize(iopin_t *ioregs_init, int len)
+{
+ short i, j, p;
+ u32 *reg;
+ immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+
+ reg = (u32 *)&(im->io_ctrl);
+
+ if (sizeof(ioregs_init) == 0)
+ return;
+
+ for (i = 0; i < len; i++) {
+ for (p = 0, j = ioregs_init[i].p_offset / sizeof(u_long);
+ p < ioregs_init[i].nr_pins; p++, j++) {
+ if (ioregs_init[i].bit_or)
+ setbits_be32(reg + j, ioregs_init[i].val);
+ else
+ out_be32 (reg + j, ioregs_init[i].val);
+ }
+ }
+ return;
+}
+
+void iopin_initialize_bits(iopin_t *ioregs_init, int len)
+{
+ short i, j, p;
+ u32 *reg, mask;
+ immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+
+ reg = (u32 *)&(im->io_ctrl);
+
+ /* iterate over table entries */
+ for (i = 0; i < len; i++) {
+ /* iterate over pins within a table entry */
+ for (p = 0, j = ioregs_init[i].p_offset / sizeof(u_long);
+ p < ioregs_init[i].nr_pins; p++, j++) {
+ if (ioregs_init[i].bit_or & IO_PIN_OVER_EACH) {
+ /* replace all settings at once */
+ out_be32(reg + j, ioregs_init[i].val);
+ } else {
+ /*
+ * only replace individual parts, but
+ * REPLACE them instead of just ORing
+ * them in and "inheriting" previously
+ * set bits which we don't want
+ */
+ mask = 0;
+ if (ioregs_init[i].bit_or & IO_PIN_OVER_FMUX)
+ mask |= IO_PIN_FMUX(3);
+
+ if (ioregs_init[i].bit_or & IO_PIN_OVER_HOLD)
+ mask |= IO_PIN_HOLD(3);
+
+ if (ioregs_init[i].bit_or & IO_PIN_OVER_PULL)
+ mask |= IO_PIN_PUD(1) | IO_PIN_PUE(1);
+
+ if (ioregs_init[i].bit_or & IO_PIN_OVER_STRIG)
+ mask |= IO_PIN_ST(1);
+
+ if (ioregs_init[i].bit_or & IO_PIN_OVER_DRVSTR)
+ mask |= IO_PIN_DS(3);
+ /*
+ * DON'T do the "mask, then insert"
+ * in place on the register, it may
+ * break access to external hardware
+ * (like boot ROMs) when configuring
+ * LPB related pins, while the code to
+ * configure the pin is read from this
+ * very address region
+ */
+ clrsetbits_be32(reg + j, mask,
+ ioregs_init[i].val & mask);
+ }
+ }
+ }
+}
diff --git a/arch/powerpc/cpu/mpc512x/pci.c b/arch/powerpc/cpu/mpc512x/pci.c
new file mode 100644
index 0000000..16f034d
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/pci.c
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2009-2010 DENX Software Engineering <wd@denx.de>
+ * Copyright (C) Freescale Semiconductor, Inc. 2006, 2007.
+ *
+ * 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 <common.h>
+
+#include <asm/io.h>
+#include <asm/mmu.h>
+#include <asm/global_data.h>
+#include <pci.h>
+#if defined(CONFIG_OF_LIBFDT)
+#include <libfdt.h>
+#include <fdt_support.h>
+#endif
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* System RAM mapped to PCI space */
+#define CONFIG_PCI_SYS_MEM_BUS CONFIG_SYS_SDRAM_BASE
+#define CONFIG_PCI_SYS_MEM_PHYS CONFIG_SYS_SDRAM_BASE
+
+static struct pci_controller pci_hose;
+
+
+/**************************************************************************
+ * pci_init_board()
+ *
+ */
+void
+pci_init_board(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile law512x_t *pci_law;
+ volatile pot512x_t *pci_pot;
+ volatile pcictrl512x_t *pci_ctrl;
+ u16 reg16;
+ u32 reg32;
+ u32 dev;
+ int i;
+ struct pci_controller *hose;
+
+ /* Set PCI divider for 33MHz */
+ reg32 = in_be32(&im->clk.scfr[0]);
+ reg32 &= ~(SCFR1_PCI_DIV_MASK);
+ reg32 |= SCFR1_PCI_DIV << SCFR1_PCI_DIV_SHIFT;
+ out_be32(&im->clk.scfr[0], reg32);
+
+ clrsetbits_be32(&im->clk.scfr[0],
+ SCFR1_PCI_DIV_MASK,
+ SCFR1_PCI_DIV << SCFR1_PCI_DIV_SHIFT
+ );
+
+ pci_law = im->sysconf.pcilaw;
+ pci_pot = im->ios.pot;
+ pci_ctrl = &im->pci_ctrl;
+
+ hose = &pci_hose;
+
+ /*
+ * Release PCI RST Output signal
+ */
+ out_be32(&pci_ctrl->gcr, 0);
+ udelay(2000);
+ out_be32(&pci_ctrl->gcr, 1);
+
+ /* We need to wait at least a 1sec based on PCI specs */
+ for (i = 0; i < 1000; i++)
+ udelay(1000);
+
+ /*
+ * Configure PCI Local Access Windows
+ */
+ out_be32(&pci_law[0].bar, CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR);
+ out_be32(&pci_law[0].ar, LAWAR_EN | LAWAR_SIZE_512M);
+
+ out_be32(&pci_law[1].bar, CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR);
+ out_be32(&pci_law[1].ar, LAWAR_EN | LAWAR_SIZE_16M);
+
+ /*
+ * Configure PCI Outbound Translation Windows
+ */
+
+ /* PCI mem space - prefetch */
+ out_be32(&pci_pot[0].potar,
+ (CONFIG_SYS_PCI_MEM_BASE >> 12) & POTAR_TA_MASK);
+ out_be32(&pci_pot[0].pobar,
+ (CONFIG_SYS_PCI_MEM_PHYS >> 12) & POBAR_BA_MASK);
+ out_be32(&pci_pot[0].pocmr,
+ POCMR_EN | POCMR_PRE | POCMR_CM_256M);
+
+ /* PCI IO space */
+ out_be32(&pci_pot[1].potar,
+ (CONFIG_SYS_PCI_IO_BASE >> 12) & POTAR_TA_MASK);
+ out_be32(&pci_pot[1].pobar,
+ (CONFIG_SYS_PCI_IO_PHYS >> 12) & POBAR_BA_MASK);
+ out_be32(&pci_pot[1].pocmr,
+ POCMR_EN | POCMR_IO | POCMR_CM_16M);
+
+ /* PCI mmio - non-prefetch mem space */
+ out_be32(&pci_pot[2].potar,
+ (CONFIG_SYS_PCI_MMIO_BASE >> 12) & POTAR_TA_MASK);
+ out_be32(&pci_pot[2].pobar,
+ (CONFIG_SYS_PCI_MMIO_PHYS >> 12) & POBAR_BA_MASK);
+ out_be32(&pci_pot[2].pocmr,
+ POCMR_EN | POCMR_CM_256M);
+
+ /*
+ * Configure PCI Inbound Translation Windows
+ */
+
+ /* we need RAM mapped to PCI space for the devices to
+ * access main memory */
+ out_be32(&pci_ctrl[0].pitar1, 0x0);
+ out_be32(&pci_ctrl[0].pibar1, 0x0);
+ out_be32(&pci_ctrl[0].piebar1, 0x0);
+ out_be32(&pci_ctrl[0].piwar1,
+ PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP |
+ PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1));
+
+ hose->first_busno = 0;
+ hose->last_busno = 0xff;
+
+ /* PCI memory prefetch space */
+ pci_set_region(hose->regions + 0,
+ CONFIG_SYS_PCI_MEM_BASE,
+ CONFIG_SYS_PCI_MEM_PHYS,
+ CONFIG_SYS_PCI_MEM_SIZE,
+ PCI_REGION_MEM|PCI_REGION_PREFETCH);
+
+ /* PCI memory space */
+ pci_set_region(hose->regions + 1,
+ CONFIG_SYS_PCI_MMIO_BASE,
+ CONFIG_SYS_PCI_MMIO_PHYS,
+ CONFIG_SYS_PCI_MMIO_SIZE,
+ PCI_REGION_MEM);
+
+ /* PCI IO space */
+ pci_set_region(hose->regions + 2,
+ CONFIG_SYS_PCI_IO_BASE,
+ CONFIG_SYS_PCI_IO_PHYS,
+ CONFIG_SYS_PCI_IO_SIZE,
+ PCI_REGION_IO);
+
+ /* System memory space */
+ pci_set_region(hose->regions + 3,
+ CONFIG_PCI_SYS_MEM_BUS,
+ CONFIG_PCI_SYS_MEM_PHYS,
+ gd->ram_size,
+ PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
+
+ hose->region_count = 4;
+
+ pci_setup_indirect(hose,
+ (CONFIG_SYS_IMMR + 0x8300),
+ (CONFIG_SYS_IMMR + 0x8304));
+
+ pci_register_hose(hose);
+
+ /*
+ * Write to Command register
+ */
+ reg16 = 0xff;
+ dev = PCI_BDF(hose->first_busno, 0, 0);
+ pci_hose_read_config_word(hose, dev, PCI_COMMAND, &reg16);
+ reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
+ pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16);
+
+ /*
+ * Clear non-reserved bits in status register.
+ */
+ pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff);
+ pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80);
+ pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08);
+
+#ifdef CONFIG_PCI_SCAN_SHOW
+ printf("PCI: Bus Dev VenId DevId Class Int\n");
+#endif
+ /*
+ * Hose scan.
+ */
+ hose->last_busno = pci_hose_scan(hose);
+}
+
+#if defined(CONFIG_OF_LIBFDT)
+void ft_pci_setup(void *blob, bd_t *bd)
+{
+ int nodeoffset;
+ int tmp[2];
+ const char *path;
+
+ nodeoffset = fdt_path_offset(blob, "/aliases");
+ if (nodeoffset >= 0) {
+ path = fdt_getprop(blob, nodeoffset, "pci", NULL);
+ if (path) {
+ tmp[0] = cpu_to_be32(pci_hose.first_busno);
+ tmp[1] = cpu_to_be32(pci_hose.last_busno);
+ do_fixup_by_path(blob, path, "bus-range",
+ &tmp, sizeof(tmp), 1);
+
+ tmp[0] = cpu_to_be32(gd->pci_clk);
+ do_fixup_by_path(blob, path, "clock-frequency",
+ &tmp, sizeof(tmp[0]), 1);
+ }
+ }
+}
+#endif /* CONFIG_OF_LIBFDT */
diff --git a/arch/powerpc/cpu/mpc512x/serial.c b/arch/powerpc/cpu/mpc512x/serial.c
new file mode 100644
index 0000000..3afbe81
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/serial.c
@@ -0,0 +1,459 @@
+/*
+ * (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
+ *
+ * Based ont the MPC5200 PSC driver.
+ * Adapted for MPC512x by Jan Wrobel <wrr@semihalf.com>
+ */
+
+/*
+ * Minimal serial functions needed to use one of the PSC ports
+ * as serial console interface.
+ */
+
+#include <common.h>
+#include <linux/compiler.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <serial.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_PSC_CONSOLE)
+
+static void fifo_init (volatile psc512x_t *psc)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ u32 tfsize, rfsize;
+
+ /* reset Rx & Tx fifo slice */
+ out_be32(&psc->rfcmd, PSC_FIFO_RESET_SLICE);
+ out_be32(&psc->tfcmd, PSC_FIFO_RESET_SLICE);
+
+ /* disable Tx & Rx FIFO interrupts */
+ out_be32(&psc->rfintmask, 0);
+ out_be32(&psc->tfintmask, 0);
+
+ switch (((u32)psc & 0xf00) >> 8) {
+ case 0:
+ tfsize = FIFOC_PSC0_TX_SIZE | (FIFOC_PSC0_TX_ADDR << 16);
+ rfsize = FIFOC_PSC0_RX_SIZE | (FIFOC_PSC0_RX_ADDR << 16);
+ break;
+ case 1:
+ tfsize = FIFOC_PSC1_TX_SIZE | (FIFOC_PSC1_TX_ADDR << 16);
+ rfsize = FIFOC_PSC1_RX_SIZE | (FIFOC_PSC1_RX_ADDR << 16);
+ break;
+ case 2:
+ tfsize = FIFOC_PSC2_TX_SIZE | (FIFOC_PSC2_TX_ADDR << 16);
+ rfsize = FIFOC_PSC2_RX_SIZE | (FIFOC_PSC2_RX_ADDR << 16);
+ break;
+ case 3:
+ tfsize = FIFOC_PSC3_TX_SIZE | (FIFOC_PSC3_TX_ADDR << 16);
+ rfsize = FIFOC_PSC3_RX_SIZE | (FIFOC_PSC3_RX_ADDR << 16);
+ break;
+ case 4:
+ tfsize = FIFOC_PSC4_TX_SIZE | (FIFOC_PSC4_TX_ADDR << 16);
+ rfsize = FIFOC_PSC4_RX_SIZE | (FIFOC_PSC4_RX_ADDR << 16);
+ break;
+ case 5:
+ tfsize = FIFOC_PSC5_TX_SIZE | (FIFOC_PSC5_TX_ADDR << 16);
+ rfsize = FIFOC_PSC5_RX_SIZE | (FIFOC_PSC5_RX_ADDR << 16);
+ break;
+ case 6:
+ tfsize = FIFOC_PSC6_TX_SIZE | (FIFOC_PSC6_TX_ADDR << 16);
+ rfsize = FIFOC_PSC6_RX_SIZE | (FIFOC_PSC6_RX_ADDR << 16);
+ break;
+ case 7:
+ tfsize = FIFOC_PSC7_TX_SIZE | (FIFOC_PSC7_TX_ADDR << 16);
+ rfsize = FIFOC_PSC7_RX_SIZE | (FIFOC_PSC7_RX_ADDR << 16);
+ break;
+ case 8:
+ tfsize = FIFOC_PSC8_TX_SIZE | (FIFOC_PSC8_TX_ADDR << 16);
+ rfsize = FIFOC_PSC8_RX_SIZE | (FIFOC_PSC8_RX_ADDR << 16);
+ break;
+ case 9:
+ tfsize = FIFOC_PSC9_TX_SIZE | (FIFOC_PSC9_TX_ADDR << 16);
+ rfsize = FIFOC_PSC9_RX_SIZE | (FIFOC_PSC9_RX_ADDR << 16);
+ break;
+ case 10:
+ tfsize = FIFOC_PSC10_TX_SIZE | (FIFOC_PSC10_TX_ADDR << 16);
+ rfsize = FIFOC_PSC10_RX_SIZE | (FIFOC_PSC10_RX_ADDR << 16);
+ break;
+ case 11:
+ tfsize = FIFOC_PSC11_TX_SIZE | (FIFOC_PSC11_TX_ADDR << 16);
+ rfsize = FIFOC_PSC11_RX_SIZE | (FIFOC_PSC11_RX_ADDR << 16);
+ break;
+ default:
+ return;
+ }
+
+ out_be32(&psc->tfsize, tfsize);
+ out_be32(&psc->rfsize, rfsize);
+
+ /* enable Tx & Rx FIFO slice */
+ out_be32(&psc->rfcmd, PSC_FIFO_ENABLE_SLICE);
+ out_be32(&psc->tfcmd, PSC_FIFO_ENABLE_SLICE);
+
+ out_be32(&im->fifoc.fifoc_cmd, FIFOC_DISABLE_CLOCK_GATE);
+ __asm__ volatile ("sync");
+}
+
+void serial_setbrg_dev(unsigned int idx)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+ unsigned long baseclk, div;
+ unsigned long baudrate;
+ char buf[16];
+ char *br_env;
+
+ baudrate = gd->baudrate;
+ if (idx != CONFIG_PSC_CONSOLE) {
+ /* Allows setting baudrate for other serial devices
+ * on PSCx using environment. If not specified, use
+ * the same baudrate as for console.
+ */
+ sprintf(buf, "psc%d_baudrate", idx);
+ br_env = getenv(buf);
+ if (br_env)
+ baudrate = simple_strtoul(br_env, NULL, 10);
+
+ debug("%s: idx %d, baudrate %ld\n", __func__, idx, baudrate);
+ }
+
+ /* calculate divisor for setting PSC CTUR and CTLR registers */
+ baseclk = (gd->arch.ips_clk + 8) / 16;
+ div = (baseclk + (baudrate / 2)) / baudrate;
+
+ out_8(&psc->ctur, (div >> 8) & 0xff);
+ out_8(&psc->ctlr, div & 0xff); /* set baudrate */
+}
+
+int serial_init_dev(unsigned int idx)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+ u32 reg;
+
+ reg = in_be32(&im->clk.sccr[0]);
+ out_be32(&im->clk.sccr[0], reg | CLOCK_SCCR1_PSC_EN(idx));
+
+ fifo_init (psc);
+
+ /* set MR register to point to MR1 */
+ out_8(&psc->command, PSC_SEL_MODE_REG_1);
+
+ /* disable Tx/Rx */
+ out_8(&psc->command, PSC_TX_DISABLE | PSC_RX_DISABLE);
+
+ /* choose the prescaler by 16 for the Tx/Rx clock generation */
+ out_be16(&psc->psc_clock_select, 0xdd00);
+
+ /* switch to UART mode */
+ out_be32(&psc->sicr, 0);
+
+ /* mode register points to mr1 */
+ /* configure parity, bit length and so on in mode register 1*/
+ out_8(&psc->mode, PSC_MODE_8_BITS | PSC_MODE_PARNONE);
+ /* now, mode register points to mr2 */
+ out_8(&psc->mode, PSC_MODE_1_STOPBIT);
+
+ /* set baudrate */
+ serial_setbrg_dev(idx);
+
+ /* disable all interrupts */
+ out_be16(&psc->psc_imr, 0);
+
+ /* reset and enable Rx/Tx */
+ out_8(&psc->command, PSC_RST_RX);
+ out_8(&psc->command, PSC_RST_TX);
+ out_8(&psc->command, PSC_RX_ENABLE | PSC_TX_ENABLE);
+
+ return 0;
+}
+
+int serial_uninit_dev(unsigned int idx)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+ u32 reg;
+
+ out_8(&psc->command, PSC_RX_DISABLE | PSC_TX_DISABLE);
+ reg = in_be32(&im->clk.sccr[0]);
+ reg &= ~CLOCK_SCCR1_PSC_EN(idx);
+ out_be32(&im->clk.sccr[0], reg);
+
+ return 0;
+}
+
+void serial_putc_dev(unsigned int idx, const char c)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+
+ if (c == '\n')
+ serial_putc_dev(idx, '\r');
+
+ /* Wait for last character to go. */
+ while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP))
+ ;
+
+ out_8(&psc->tfdata_8, c);
+}
+
+void serial_putc_raw_dev(unsigned int idx, const char c)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+
+ /* Wait for last character to go. */
+ while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP))
+ ;
+
+ out_8(&psc->tfdata_8, c);
+}
+
+void serial_puts_dev(unsigned int idx, const char *s)
+{
+ while (*s)
+ serial_putc_dev(idx, *s++);
+}
+
+int serial_getc_dev(unsigned int idx)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+
+ /* Wait for a character to arrive. */
+ while (in_be32(&psc->rfstat) & PSC_FIFO_EMPTY)
+ ;
+
+ return in_8(&psc->rfdata_8);
+}
+
+int serial_tstc_dev(unsigned int idx)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+
+ return !(in_be32(&psc->rfstat) & PSC_FIFO_EMPTY);
+}
+
+void serial_setrts_dev(unsigned int idx, int s)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+
+ if (s) {
+ /* Assert RTS (become LOW) */
+ out_8(&psc->op1, 0x1);
+ }
+ else {
+ /* Negate RTS (become HIGH) */
+ out_8(&psc->op0, 0x1);
+ }
+}
+
+int serial_getcts_dev(unsigned int idx)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[idx];
+
+ return (in_8(&psc->ip) & 0x1) ? 0 : 1;
+}
+#endif /* CONFIG_PSC_CONSOLE */
+
+#define DECLARE_PSC_SERIAL_FUNCTIONS(port) \
+ int serial##port##_init(void) \
+ { \
+ return serial_init_dev(port); \
+ } \
+ int serial##port##_uninit(void) \
+ { \
+ return serial_uninit_dev(port); \
+ } \
+ void serial##port##_setbrg(void) \
+ { \
+ serial_setbrg_dev(port); \
+ } \
+ int serial##port##_getc(void) \
+ { \
+ return serial_getc_dev(port); \
+ } \
+ int serial##port##_tstc(void) \
+ { \
+ return serial_tstc_dev(port); \
+ } \
+ void serial##port##_putc(const char c) \
+ { \
+ serial_putc_dev(port, c); \
+ } \
+ void serial##port##_puts(const char *s) \
+ { \
+ serial_puts_dev(port, s); \
+ }
+
+#define INIT_PSC_SERIAL_STRUCTURE(port, __name) { \
+ .name = __name, \
+ .start = serial##port##_init, \
+ .stop = serial##port##_uninit, \
+ .setbrg = serial##port##_setbrg, \
+ .getc = serial##port##_getc, \
+ .tstc = serial##port##_tstc, \
+ .putc = serial##port##_putc, \
+ .puts = serial##port##_puts, \
+}
+
+#if defined(CONFIG_SYS_PSC1)
+DECLARE_PSC_SERIAL_FUNCTIONS(1);
+struct serial_device serial1_device =
+INIT_PSC_SERIAL_STRUCTURE(1, "psc1");
+#endif
+
+#if defined(CONFIG_SYS_PSC3)
+DECLARE_PSC_SERIAL_FUNCTIONS(3);
+struct serial_device serial3_device =
+INIT_PSC_SERIAL_STRUCTURE(3, "psc3");
+#endif
+
+#if defined(CONFIG_SYS_PSC4)
+DECLARE_PSC_SERIAL_FUNCTIONS(4);
+struct serial_device serial4_device =
+INIT_PSC_SERIAL_STRUCTURE(4, "psc4");
+#endif
+
+#if defined(CONFIG_SYS_PSC6)
+DECLARE_PSC_SERIAL_FUNCTIONS(6);
+struct serial_device serial6_device =
+INIT_PSC_SERIAL_STRUCTURE(6, "psc6");
+#endif
+
+__weak struct serial_device *default_serial_console(void)
+{
+#if (CONFIG_PSC_CONSOLE == 3)
+ return &serial3_device;
+#elif (CONFIG_PSC_CONSOLE == 6)
+ return &serial6_device;
+#else
+#error "invalid CONFIG_PSC_CONSOLE"
+#endif
+}
+
+void mpc512x_serial_initialize(void)
+{
+#if defined(CONFIG_SYS_PSC1)
+ serial_register(&serial1_device);
+#endif
+#if defined(CONFIG_SYS_PSC3)
+ serial_register(&serial3_device);
+#endif
+#if defined(CONFIG_SYS_PSC4)
+ serial_register(&serial4_device);
+#endif
+#if defined(CONFIG_SYS_PSC6)
+ serial_register(&serial6_device);
+#endif
+}
+
+#include <stdio_dev.h>
+/*
+ * Routines for communication with serial devices over PSC
+ */
+/* Bitfield for initialized PSCs */
+static unsigned int initialized;
+
+struct stdio_dev *open_port(int num, int baudrate)
+{
+ struct stdio_dev *port;
+ char env_var[16];
+ char env_val[10];
+ char name[7];
+
+ if (num < 0 || num > 11)
+ return NULL;
+
+ sprintf(name, "psc%d", num);
+ port = stdio_get_by_name(name);
+ if (!port)
+ return NULL;
+
+ if (!test_bit(num, &initialized)) {
+ sprintf(env_var, "psc%d_baudrate", num);
+ sprintf(env_val, "%d", baudrate);
+ setenv(env_var, env_val);
+
+ if (port->start())
+ return NULL;
+
+ set_bit(num, &initialized);
+ }
+
+ return port;
+}
+
+int close_port(int num)
+{
+ struct stdio_dev *port;
+ int ret;
+ char name[7];
+
+ if (num < 0 || num > 11)
+ return -1;
+
+ sprintf(name, "psc%d", num);
+ port = stdio_get_by_name(name);
+ if (!port)
+ return -1;
+
+ ret = port->stop();
+ clear_bit(num, &initialized);
+
+ return ret;
+}
+
+int write_port(struct stdio_dev *port, char *buf)
+{
+ if (!port || !buf)
+ return -1;
+
+ port->puts(buf);
+
+ return 0;
+}
+
+int read_port(struct stdio_dev *port, char *buf, int size)
+{
+ int cnt = 0;
+
+ if (!port || !buf)
+ return -1;
+
+ if (!size)
+ return 0;
+
+ while (port->tstc()) {
+ buf[cnt++] = port->getc();
+ if (cnt > size)
+ break;
+ }
+
+ return cnt;
+}
diff --git a/arch/powerpc/cpu/mpc512x/speed.c b/arch/powerpc/cpu/mpc512x/speed.c
new file mode 100644
index 0000000..6761877
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/speed.c
@@ -0,0 +1,153 @@
+/*
+ * (C) Copyright 2000-2009
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2006 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
+ *
+ * Based on the MPC83xx code.
+ */
+
+#include <common.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int spmf_mult[] = {
+ 68, 1, 12, 16,
+ 20, 24, 28, 32,
+ 36, 40, 44, 48,
+ 52, 56, 60, 64
+};
+
+static int cpmf_mult[][2] = {
+ {0, 1}, {0, 1}, /* 0 and 1 are not valid */
+ {1, 1}, {3, 2},
+ {2, 1}, {5, 2},
+ {3, 1}, {7, 2},
+ {0, 1}, {0, 1}, /* and all above 7 are not valid too */
+ {0, 1}, {0, 1},
+ {0, 1}, {0, 1},
+ {0, 1}, {0, 1}
+};
+
+static int sys_dividors[][2] = {
+ {2, 1}, {5, 2}, {3, 1}, {7, 2}, {4, 1},
+ {9, 2}, {5, 1}, {7, 1}, {6, 1}, {8, 1},
+ {9, 1}, {11, 1}, {10, 1}, {12, 1}, {13, 1},
+ {15, 1}, {14, 1}, {16, 1}, {17, 1}, {19, 1},
+ {18, 1}, {20, 1}, {21, 1}, {23, 1}, {22, 1},
+ {24, 1}, {25, 1}, {27, 1}, {26, 1}, {28, 1},
+ {29, 1}, {31, 1}, {30, 1}, {32, 1}, {33, 1}
+};
+
+int get_clocks (void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ u8 spmf;
+ u8 cpmf;
+ u8 sys_div;
+ u8 ips_div;
+ u8 pci_div;
+ u32 ref_clk = CONFIG_SYS_MPC512X_CLKIN;
+ u32 spll;
+ u32 sys_clk;
+ u32 core_clk;
+ u32 csb_clk;
+ u32 ips_clk;
+ u32 pci_clk;
+ u32 reg;
+
+ reg = in_be32(&im->sysconf.immrbar);
+ if ((reg & IMMRBAR_BASE_ADDR) != (u32) im)
+ return -1;
+
+ reg = in_be32(&im->clk.spmr);
+ spmf = (reg & SPMR_SPMF) >> SPMR_SPMF_SHIFT;
+ spll = ref_clk * spmf_mult[spmf];
+
+ reg = in_be32(&im->clk.scfr[1]);
+ sys_div = (reg & SCFR2_SYS_DIV) >> SCFR2_SYS_DIV_SHIFT;
+ sys_clk = (spll * sys_dividors[sys_div][1]) / sys_dividors[sys_div][0];
+
+ csb_clk = sys_clk / 2;
+
+ reg = in_be32(&im->clk.spmr);
+ cpmf = (reg & SPMR_CPMF) >> SPMR_CPMF_SHIFT;
+ core_clk = (csb_clk * cpmf_mult[cpmf][0]) / cpmf_mult[cpmf][1];
+
+ reg = in_be32(&im->clk.scfr[0]);
+ ips_div = (reg & SCFR1_IPS_DIV_MASK) >> SCFR1_IPS_DIV_SHIFT;
+ if (ips_div != 0) {
+ ips_clk = csb_clk / ips_div;
+ } else {
+ /* in case we cannot get a sane IPS divisor, fail gracefully */
+ ips_clk = 0;
+ }
+
+ reg = in_be32(&im->clk.scfr[0]);
+ pci_div = (reg & SCFR1_PCI_DIV_MASK) >> SCFR1_PCI_DIV_SHIFT;
+ if (pci_div != 0) {
+ pci_clk = csb_clk / pci_div;
+ } else {
+ /* in case we cannot get a sane IPS divisor, fail gracefully */
+ pci_clk = 333333;
+ }
+
+ gd->arch.ips_clk = ips_clk;
+ gd->pci_clk = pci_clk;
+ gd->arch.csb_clk = csb_clk;
+ gd->cpu_clk = core_clk;
+ gd->bus_clk = csb_clk;
+ return 0;
+
+}
+
+/********************************************
+ * get_bus_freq
+ * return system bus freq in Hz
+ *********************************************/
+ulong get_bus_freq (ulong dummy)
+{
+ return gd->arch.csb_clk;
+}
+
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+{
+ char buf[32];
+
+ printf("Clock configuration:\n");
+ printf(" CPU: %-4s MHz\n", strmhz(buf, gd->cpu_clk));
+ printf(" Coherent System Bus: %-4s MHz\n",
+ strmhz(buf, gd->arch.csb_clk));
+ printf(" IPS Bus: %-4s MHz\n",
+ strmhz(buf, gd->arch.ips_clk));
+ printf(" PCI: %-4s MHz\n", strmhz(buf, gd->pci_clk));
+ printf(" DDR: %-4s MHz\n",
+ strmhz(buf, 2 * gd->arch.csb_clk));
+ return 0;
+}
+
+U_BOOT_CMD(clocks, 1, 0, do_clocks,
+ "print clock configuration",
+ " clocks"
+);
diff --git a/arch/powerpc/cpu/mpc512x/start.S b/arch/powerpc/cpu/mpc512x/start.S
new file mode 100644
index 0000000..6d1a99a
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/start.S
@@ -0,0 +1,708 @@
+/*
+ * Copyright (C) 1998 Dan Malek <dmalek@jlc.net>
+ * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se>
+ * Copyright (C) 2000-2009 Wolfgang Denk <wd@denx.de>
+ * Copyright Freescale Semiconductor, Inc. 2004, 2006.
+ *
+ * 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
+ *
+ * Based on the MPC83xx code.
+ */
+
+/*
+ * U-Boot - Startup Code for MPC512x based Embedded Boards
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#ifndef CONFIG_IDENT_STRING
+#define CONFIG_IDENT_STRING "MPC512X"
+#endif
+#include <version.h>
+
+#define CONFIG_521X 1 /* needed for Linux kernel header files*/
+
+#include <asm/immap_512x.h>
+#include "asm-offsets.h"
+
+#include <ppc_asm.tmpl>
+#include <ppc_defs.h>
+
+#include <asm/cache.h>
+#include <asm/mmu.h>
+#include <asm/u-boot.h>
+
+/*
+ * Floating Point enable, Machine Check and Recoverable Interr.
+ */
+#undef MSR_KERNEL
+#ifdef DEBUG
+#define MSR_KERNEL (MSR_FP|MSR_RI)
+#else
+#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI)
+#endif
+
+/* Macros for manipulating CSx_START/STOP */
+#define START_REG(start) ((start) >> 16)
+#define STOP_REG(start, size) (((start) + (size) - 1) >> 16)
+
+/*
+ * Set up GOT: Global Offset Table
+ *
+ * Use r12 to access the GOT
+ */
+ START_GOT
+ GOT_ENTRY(_GOT2_TABLE_)
+ GOT_ENTRY(_FIXUP_TABLE_)
+
+ GOT_ENTRY(_start)
+ GOT_ENTRY(_start_of_vectors)
+ GOT_ENTRY(_end_of_vectors)
+ GOT_ENTRY(transfer_to_handler)
+
+ GOT_ENTRY(__init_end)
+ GOT_ENTRY(__bss_end)
+ GOT_ENTRY(__bss_start)
+ END_GOT
+
+/*
+ * Magic number and version string
+ */
+ .long 0x27051956 /* U-Boot Magic Number */
+ .globl version_string
+version_string:
+ .ascii U_BOOT_VERSION_STRING, "\0"
+
+/*
+ * Vector Table
+ */
+ .text
+ . = EXC_OFF_SYS_RESET
+
+ .globl _start
+ /* Start from here after reset/power on */
+_start:
+ b boot_cold
+
+ .globl _start_of_vectors
+_start_of_vectors:
+
+/* Machine check */
+ STD_EXCEPTION(0x200, MachineCheck, MachineCheckException)
+
+/* Data Storage exception. */
+ STD_EXCEPTION(0x300, DataStorage, UnknownException)
+
+/* Instruction Storage exception. */
+ STD_EXCEPTION(0x400, InstStorage, UnknownException)
+
+/* External Interrupt exception. */
+ STD_EXCEPTION(0x500, ExtInterrupt, UnknownException)
+
+/* Alignment exception. */
+ . = 0x600
+Alignment:
+ EXCEPTION_PROLOG(SRR0, SRR1)
+ mfspr r4,DAR
+ stw r4,_DAR(r21)
+ mfspr r5,DSISR
+ stw r5,_DSISR(r21)
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ EXC_XFER_TEMPLATE(Alignment, AlignmentException, MSR_KERNEL, COPY_EE)
+
+/* Program check exception */
+ . = 0x700
+ProgramCheck:
+ EXCEPTION_PROLOG(SRR0, SRR1)
+ addi r3,r1,STACK_FRAME_OVERHEAD
+ EXC_XFER_TEMPLATE(ProgramCheck, ProgramCheckException,
+ MSR_KERNEL, COPY_EE)
+
+/* Floating Point Unit unavailable exception */
+ STD_EXCEPTION(0x800, FPUnavailable, UnknownException)
+
+/* Decrementer */
+ STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
+
+/* Critical interrupt */
+ STD_EXCEPTION(0xa00, Critical, UnknownException)
+
+/* System Call */
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
+
+/* Trace interrupt */
+ STD_EXCEPTION(0xd00, Trace, UnknownException)
+
+/* Performance Monitor interrupt */
+ STD_EXCEPTION(0xf00, PerfMon, UnknownException)
+
+/* Intruction Translation Miss */
+ STD_EXCEPTION(0x1000, InstructionTLBMiss, UnknownException)
+
+/* Data Load Translation Miss */
+ STD_EXCEPTION(0x1100, DataLoadTLBMiss, UnknownException)
+
+/* Data Store Translation Miss */
+ STD_EXCEPTION(0x1200, DataStoreTLBMiss, UnknownException)
+
+/* Instruction Address Breakpoint */
+ STD_EXCEPTION(0x1300, InstructionAddrBreakpoint, DebugException)
+
+/* System Management interrupt */
+ STD_EXCEPTION(0x1400, SystemMgmtInterrupt, UnknownException)
+
+ .globl _end_of_vectors
+_end_of_vectors:
+
+ . = 0x3000
+boot_cold:
+ /* Save msr contents */
+ mfmsr r5
+
+ /* Set IMMR area to our preferred location */
+ lis r4, CONFIG_DEFAULT_IMMR@h
+ lis r3, CONFIG_SYS_IMMR@h
+ ori r3, r3, CONFIG_SYS_IMMR@l
+ stw r3, IMMRBAR(r4)
+ mtspr MBAR, r3 /* IMMRBAR is mirrored into the MBAR SPR (311) */
+
+ /* Initialise the machine */
+ bl cpu_early_init
+
+ /*
+ * Set up Local Access Windows:
+ *
+ * 1) Boot/CS0 (boot FLASH)
+ * 2) On-chip SRAM (initial stack purposes)
+ */
+
+ /* Boot CS/CS0 window range */
+ lis r3, CONFIG_SYS_IMMR@h
+ ori r3, r3, CONFIG_SYS_IMMR@l
+
+ lis r4, START_REG(CONFIG_SYS_FLASH_BASE)
+ ori r4, r4, STOP_REG(CONFIG_SYS_FLASH_BASE, CONFIG_SYS_FLASH_SIZE)
+ stw r4, LPCS0AW(r3)
+
+ /*
+ * The SRAM window has a fixed size (256K), so only the start address
+ * is necessary
+ */
+ lis r4, START_REG(CONFIG_SYS_SRAM_BASE) & 0xff00
+ stw r4, SRAMBAR(r3)
+
+ /*
+ * According to MPC5121e RM, configuring local access windows should
+ * be followed by a dummy read of the config register that was
+ * modified last and an isync
+ */
+ lwz r4, SRAMBAR(r3)
+ isync
+
+ /*
+ * Set configuration of the Boot/CS0, the SRAM window does not have a
+ * config register so no params can be set for it
+ */
+ lis r3, (CONFIG_SYS_IMMR + LPC_OFFSET)@h
+ ori r3, r3, (CONFIG_SYS_IMMR + LPC_OFFSET)@l
+
+ lis r4, CONFIG_SYS_CS0_CFG@h
+ ori r4, r4, CONFIG_SYS_CS0_CFG@l
+ stw r4, CS0_CONFIG(r3)
+
+ /* Master enable all CS's */
+ lis r4, CS_CTRL_ME@h
+ ori r4, r4, CS_CTRL_ME@l
+ stw r4, CS_CTRL(r3)
+
+ lis r4, (CONFIG_SYS_MONITOR_BASE)@h
+ ori r4, r4, (CONFIG_SYS_MONITOR_BASE)@l
+ addi r5, r4, in_flash - _start + EXC_OFF_SYS_RESET
+ mtlr r5
+ blr
+
+in_flash:
+ lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h
+ ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l
+
+ li r0, 0 /* Make room for stack frame header and */
+ stwu r0, -4(r1) /* clear final stack frame so that */
+ stwu r0, -4(r1) /* stack backtraces terminate cleanly */
+
+ /* let the C-code set up the rest */
+ /* */
+ /* Be careful to keep code relocatable & stack humble */
+ /*------------------------------------------------------*/
+
+ GET_GOT /* initialize GOT access */
+
+ /* r3: IMMR */
+ lis r3, CONFIG_SYS_IMMR@h
+ /* run low-level CPU init code (in Flash) */
+ bl cpu_init_f
+
+ /* run 1st part of board init code (in Flash) */
+ bl board_init_f
+
+ /* NOTREACHED - board_init_f() does not return */
+
+/*
+ * This code finishes saving the registers to the exception frame
+ * and jumps to the appropriate handler for the exception.
+ * Register r21 is pointer into trap frame, r1 has new stack pointer.
+ */
+ .globl transfer_to_handler
+transfer_to_handler:
+ stw r22,_NIP(r21)
+ lis r22,MSR_POW@h
+ andc r23,r23,r22
+ stw r23,_MSR(r21)
+ SAVE_GPR(7, r21)
+ SAVE_4GPRS(8, r21)
+ SAVE_8GPRS(12, r21)
+ SAVE_8GPRS(24, r21)
+ mflr r23
+ andi. r24,r23,0x3f00 /* get vector offset */
+ stw r24,TRAP(r21)
+ li r22,0
+ stw r22,RESULT(r21)
+ lwz r24,0(r23) /* virtual address of handler */
+ lwz r23,4(r23) /* where to go when done */
+ mtspr SRR0,r24
+ mtspr SRR1,r20
+ mtlr r23
+ SYNC
+ rfi /* jump to handler, enable MMU */
+
+int_return:
+ mfmsr r28 /* Disable interrupts */
+ li r4,0
+ ori r4,r4,MSR_EE
+ andc r28,r28,r4
+ SYNC /* Some chip revs need this... */
+ mtmsr r28
+ SYNC
+ lwz r2,_CTR(r1)
+ lwz r0,_LINK(r1)
+ mtctr r2
+ mtlr r0
+ lwz r2,_XER(r1)
+ lwz r0,_CCR(r1)
+ mtspr XER,r2
+ mtcrf 0xFF,r0
+ REST_10GPRS(3, r1)
+ REST_10GPRS(13, r1)
+ REST_8GPRS(23, r1)
+ REST_GPR(31, r1)
+ lwz r2,_NIP(r1) /* Restore environment */
+ lwz r0,_MSR(r1)
+ mtspr SRR0,r2
+ mtspr SRR1,r0
+ lwz r0,GPR0(r1)
+ lwz r2,GPR2(r1)
+ lwz r1,GPR1(r1)
+ SYNC
+ rfi
+
+/*
+ * This code initialises the machine, it expects original MSR contents to be in r5.
+ */
+cpu_early_init:
+ /* Initialize machine status; enable machine check interrupt */
+ /*-----------------------------------------------------------*/
+
+ li r3, MSR_KERNEL /* Set ME and RI flags */
+ rlwimi r3, r5, 0, 25, 25 /* preserve IP bit */
+#ifdef DEBUG
+ rlwimi r3, r5, 0, 21, 22 /* debugger might set SE, BE bits */
+#endif
+ mtmsr r3
+ SYNC
+ mtspr SRR1, r3 /* Mirror current MSR state in SRR1 */
+
+ lis r3, CONFIG_SYS_IMMR@h
+
+#if defined(CONFIG_WATCHDOG)
+ /* Initialise the watchdog and reset it */
+ /*--------------------------------------*/
+ lis r4, CONFIG_SYS_WATCHDOG_VALUE
+ ori r4, r4, (SWCRR_SWEN | SWCRR_SWRI | SWCRR_SWPR)
+ stw r4, SWCRR(r3)
+
+ /* reset */
+ li r4, 0x556C
+ sth r4, SWSRR@l(r3)
+ li r4, 0x0
+ ori r4, r4, 0xAA39
+ sth r4, SWSRR@l(r3)
+#else
+ /* Disable the watchdog */
+ /*----------------------*/
+ lwz r4, SWCRR(r3)
+ /*
+ * Check to see if it's enabled for disabling: once disabled by s/w
+ * it's not possible to re-enable it
+ */
+ andi. r4, r4, 0x4
+ beq 1f
+ xor r4, r4, r4
+ stw r4, SWCRR(r3)
+1:
+#endif /* CONFIG_WATCHDOG */
+
+ /* Initialize the Hardware Implementation-dependent Registers */
+ /* HID0 also contains cache control */
+ /*------------------------------------------------------*/
+ lis r3, CONFIG_SYS_HID0_INIT@h
+ ori r3, r3, CONFIG_SYS_HID0_INIT@l
+ SYNC
+ mtspr HID0, r3
+
+ lis r3, CONFIG_SYS_HID0_FINAL@h
+ ori r3, r3, CONFIG_SYS_HID0_FINAL@l
+ SYNC
+ mtspr HID0, r3
+
+ lis r3, CONFIG_SYS_HID2@h
+ ori r3, r3, CONFIG_SYS_HID2@l
+ SYNC
+ mtspr HID2, r3
+ sync
+ blr
+
+
+/* Cache functions.
+ *
+ * Note: requires that all cache bits in
+ * HID0 are in the low half word.
+ */
+ .globl icache_enable
+icache_enable:
+ mfspr r3, HID0
+ ori r3, r3, HID0_ICE
+ lis r4, 0
+ ori r4, r4, HID0_ILOCK
+ andc r3, r3, r4
+ ori r4, r3, HID0_ICFI
+ isync
+ mtspr HID0, r4 /* sets enable and invalidate, clears lock */
+ isync
+ mtspr HID0, r3 /* clears invalidate */
+ blr
+
+ .globl icache_disable
+icache_disable:
+ mfspr r3, HID0
+ lis r4, 0
+ ori r4, r4, HID0_ICE|HID0_ILOCK
+ andc r3, r3, r4
+ ori r4, r3, HID0_ICFI
+ isync
+ mtspr HID0, r4 /* sets invalidate, clears enable and lock*/
+ isync
+ mtspr HID0, r3 /* clears invalidate */
+ blr
+
+ .globl icache_status
+icache_status:
+ mfspr r3, HID0
+ rlwinm r3, r3, (31 - HID0_ICE_SHIFT + 1), 31, 31
+ blr
+
+ .globl dcache_enable
+dcache_enable:
+ mfspr r3, HID0
+ li r5, HID0_DCFI|HID0_DLOCK
+ andc r3, r3, r5
+ mtspr HID0, r3 /* no invalidate, unlock */
+ ori r3, r3, HID0_DCE
+ ori r5, r3, HID0_DCFI
+ mtspr HID0, r5 /* enable + invalidate */
+ mtspr HID0, r3 /* enable */
+ sync
+ blr
+
+ .globl dcache_disable
+dcache_disable:
+ mfspr r3, HID0
+ lis r4, 0
+ ori r4, r4, HID0_DCE|HID0_DLOCK
+ andc r3, r3, r4
+ ori r4, r3, HID0_DCI
+ sync
+ mtspr HID0, r4 /* sets invalidate, clears enable and lock */
+ sync
+ mtspr HID0, r3 /* clears invalidate */
+ blr
+
+ .globl dcache_status
+dcache_status:
+ mfspr r3, HID0
+ rlwinm r3, r3, (31 - HID0_DCE_SHIFT + 1), 31, 31
+ blr
+
+ .globl get_pvr
+get_pvr:
+ mfspr r3, PVR
+ blr
+
+/*-------------------------------------------------------------------*/
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r3 = dest
+ * r4 = src
+ * r5 = length in bytes
+ * r6 = cachelinesize
+ */
+ .globl relocate_code
+relocate_code:
+ mr r1, r3 /* Set new stack pointer */
+ mr r9, r4 /* Save copy of Global Data pointer */
+ mr r10, r5 /* Save copy of Destination Address */
+
+ GET_GOT
+ mr r3, r5 /* Destination Address */
+ lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */
+ ori r4, r4, CONFIG_SYS_MONITOR_BASE@l
+ lwz r5, GOT(__init_end)
+ sub r5, r5, r4
+ li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */
+
+ /*
+ * Fix GOT pointer:
+ *
+ * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE)
+ * + Destination Address
+ *
+ * Offset:
+ */
+ sub r15, r10, r4
+
+ /* First our own GOT */
+ add r12, r12, r15
+ /* then the one used by the C code */
+ add r30, r30, r15
+
+ /*
+ * Now relocate code
+ */
+ cmplw cr1,r3,r4
+ addi r0,r5,3
+ srwi. r0,r0,2
+ beq cr1,4f /* In place copy is not necessary */
+ beq 7f /* Protect against 0 count */
+ mtctr r0
+ bge cr1,2f
+ la r8,-4(r4)
+ la r7,-4(r3)
+
+ /* copy */
+1: lwzu r0,4(r8)
+ stwu r0,4(r7)
+ bdnz 1b
+
+ addi r0,r5,3
+ srwi. r0,r0,2
+ mtctr r0
+ la r8,-4(r4)
+ la r7,-4(r3)
+
+ /* and compare */
+20: lwzu r20,4(r8)
+ lwzu r21,4(r7)
+ xor. r22, r20, r21
+ bne 30f
+ bdnz 20b
+ b 4f
+
+ /* compare failed */
+30: li r3, 0
+ blr
+
+2: slwi r0,r0,2 /* re copy in reverse order ... y do we needed it? */
+ add r8,r4,r0
+ add r7,r3,r0
+3: lwzu r0,-4(r8)
+ stwu r0,-4(r7)
+ bdnz 3b
+
+/*
+ * Now flush the cache: note that we must start from a cache aligned
+ * address. Otherwise we might miss one cache line.
+ */
+4: cmpwi r6,0
+ add r5,r3,r5
+ beq 7f /* Always flush prefetch queue in any case */
+ subi r0,r6,1
+ andc r3,r3,r0
+ mr r4,r3
+5: dcbst 0,r4
+ add r4,r4,r6
+ cmplw r4,r5
+ blt 5b
+ sync /* Wait for all dcbst to complete on bus */
+ mr r4,r3
+6: icbi 0,r4
+ add r4,r4,r6
+ cmplw r4,r5
+ blt 6b
+7: sync /* Wait for all icbi to complete on bus */
+ isync
+
+/*
+ * We are done. Do not return, instead branch to second part of board
+ * initialization, now running from RAM.
+ */
+ addi r0, r10, in_ram - _start + EXC_OFF_SYS_RESET
+ mtlr r0
+ blr
+
+in_ram:
+ /*
+ * Relocation Function, r12 point to got2+0x8000
+ *
+ * Adjust got2 pointers, no need to check for 0, this code
+ * already puts a few entries in the table.
+ */
+ li r0,__got2_entries@sectoff@l
+ la r3,GOT(_GOT2_TABLE_)
+ lwz r11,GOT(_GOT2_TABLE_)
+ mtctr r0
+ sub r11,r3,r11
+ addi r3,r3,-4
+1: lwzu r0,4(r3)
+ cmpwi r0,0
+ beq- 2f
+ add r0,r0,r11
+ stw r0,0(r3)
+2: bdnz 1b
+
+ /*
+ * Now adjust the fixups and the pointers to the fixups
+ * in case we need to move ourselves again.
+ */
+ li r0,__fixup_entries@sectoff@l
+ lwz r3,GOT(_FIXUP_TABLE_)
+ cmpwi r0,0
+ mtctr r0
+ addi r3,r3,-4
+ beq 4f
+3: lwzu r4,4(r3)
+ lwzux r0,r4,r11
+ cmpwi r0,0
+ add r0,r0,r11
+ stw r4,0(r3)
+ beq- 5f
+ stw r0,0(r4)
+5: bdnz 3b
+4:
+clear_bss:
+ /*
+ * Now clear BSS segment
+ */
+ lwz r3,GOT(__bss_start)
+ lwz r4,GOT(__bss_end)
+
+ cmplw 0, r3, r4
+ beq 6f
+
+ li r0, 0
+5:
+ stw r0, 0(r3)
+ addi r3, r3, 4
+ cmplw 0, r3, r4
+ bne 5b
+6:
+ mr r3, r9 /* Global Data pointer */
+ mr r4, r10 /* Destination Address */
+ bl board_init_r
+
+ /*
+ * Copy exception vector code to low memory
+ *
+ * r3: dest_addr
+ * r7: source address, r8: end address, r9: target address
+ */
+ .globl trap_init
+trap_init:
+ mflr r4 /* save link register */
+ GET_GOT
+ lwz r7, GOT(_start)
+ lwz r8, GOT(_end_of_vectors)
+
+ li r9, 0x100 /* reset vector at 0x100 */
+
+ cmplw 0, r7, r8
+ bgelr /* return if r7>=r8 - just in case */
+1:
+ lwz r0, 0(r7)
+ stw r0, 0(r9)
+ addi r7, r7, 4
+ addi r9, r9, 4
+ cmplw 0, r7, r8
+ bne 1b
+
+ /*
+ * relocate `hdlr' and `int_return' entries
+ */
+ li r7, .L_MachineCheck - _start + EXC_OFF_SYS_RESET
+ li r8, Alignment - _start + EXC_OFF_SYS_RESET
+2:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 2b
+
+ li r7, .L_Alignment - _start + EXC_OFF_SYS_RESET
+ bl trap_reloc
+
+ li r7, .L_ProgramCheck - _start + EXC_OFF_SYS_RESET
+ bl trap_reloc
+
+ li r7, .L_FPUnavailable - _start + EXC_OFF_SYS_RESET
+ li r8, SystemCall - _start + EXC_OFF_SYS_RESET
+3:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 3b
+
+ li r7, .L_Trace - _start + EXC_OFF_SYS_RESET
+ li r8, _end_of_vectors - _start + EXC_OFF_SYS_RESET
+4:
+ bl trap_reloc
+ addi r7, r7, 0x100 /* next exception vector */
+ cmplw 0, r7, r8
+ blt 4b
+
+ mfmsr r3 /* now that the vectors have */
+ lis r7, MSR_IP@h /* relocated into low memory */
+ ori r7, r7, MSR_IP@l /* MSR[IP] can be turned off */
+ andc r3, r3, r7 /* (if it was on) */
+ SYNC /* Some chip revs need this... */
+ mtmsr r3
+ SYNC
+
+ mtlr r4 /* restore link register */
+ blr
diff --git a/arch/powerpc/cpu/mpc512x/traps.c b/arch/powerpc/cpu/mpc512x/traps.c
new file mode 100644
index 0000000..15468e5
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/traps.c
@@ -0,0 +1,204 @@
+/*
+ * (C) Copyright 2000 - 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *
+ * 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
+ *
+ * Derived from the MPC83xx code.
+ */
+
+/*
+ * This file handles the architecture-dependent parts of hardware
+ * exceptions
+ */
+
+#include <common.h>
+#include <kgdb.h>
+#include <asm/processor.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+extern unsigned long search_exception_table(unsigned long);
+
+/*
+ * End of addressable memory. This may be less than the actual
+ * amount of memory on the system if we're unable to keep all
+ * the memory mapped in.
+ */
+extern ulong get_effective_memsize(void);
+#define END_OF_MEM (gd->bd->bi_memstart + get_effective_memsize())
+
+/*
+ * Trap & Exception support
+ */
+
+static void print_backtrace(unsigned long *sp)
+{
+ int cnt = 0;
+ unsigned long i;
+
+ puts("Call backtrace: ");
+ while (sp) {
+ if ((uint)sp > END_OF_MEM)
+ break;
+
+ i = sp[1];
+ if (cnt++ % 7 == 0)
+ putc('\n');
+ printf("%08lX ", i);
+ if (cnt > 32) break;
+ sp = (unsigned long *) *sp;
+ }
+ putc('\n');
+}
+
+void show_regs(struct pt_regs *regs)
+{
+ int i;
+
+ printf("NIP: %08lX XER: %08lX LR: %08lX REGS: %p TRAP: %04lx DAR: %08lX\n",
+ regs->nip, regs->xer, regs->link, regs, regs->trap, regs->dar);
+ printf("MSR: %08lx EE: %01x PR: %01x FP: %01x ME: %01x IR/DR: %01x%01x\n",
+ regs->msr, regs->msr & MSR_EE ? 1 : 0, regs->msr & MSR_PR ? 1 : 0,
+ regs->msr & MSR_FP ? 1 : 0,regs->msr & MSR_ME ? 1 : 0,
+ regs->msr & MSR_IR ? 1 : 0,
+ regs->msr & MSR_DR ? 1 : 0);
+
+ putc('\n');
+ for (i = 0; i < 32; i++) {
+ if ((i % 8) == 0) {
+ printf("GPR%02d: ", i);
+ }
+
+ printf("%08lX ", regs->gpr[i]);
+ if ((i % 8) == 7) {
+ putc('\n');
+ }
+ }
+}
+
+
+static void _exception(int signr, struct pt_regs *regs)
+{
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Exception at pc %lx signal %d", regs->nip, signr);
+}
+
+
+void MachineCheckException(struct pt_regs *regs)
+{
+ unsigned long fixup = search_exception_table(regs->nip);
+
+ if (fixup) {
+ regs->nip = fixup;
+ return;
+ }
+
+#ifdef CONFIG_CMD_KGDB
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+
+ puts("Machine check.\nCaused by (from msr): ");
+ printf("regs %p ", regs);
+ switch (regs->msr & 0x00FF0000) {
+ case (0x80000000 >> 10):
+ puts("Instruction cache parity signal\n");
+ break;
+ case (0x80000000 >> 11):
+ puts("Data cache parity signal\n");
+ break;
+ case (0x80000000 >> 12):
+ puts("Machine check signal\n");
+ break;
+ case (0x80000000 >> 13):
+ puts("Transfer error ack signal\n");
+ break;
+ case (0x80000000 >> 14):
+ puts("Data parity signal\n");
+ break;
+ case (0x80000000 >> 15):
+ puts("Address parity signal\n");
+ break;
+ default:
+ puts("Unknown values in msr\n");
+ }
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+
+ panic("machine check");
+}
+
+void AlignmentException(struct pt_regs *regs)
+{
+#ifdef CONFIG_CMD_KGDB
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Alignment Exception");
+}
+
+void ProgramCheckException(struct pt_regs *regs)
+{
+#ifdef CONFIG_CMD_KGDB
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Program Check Exception");
+}
+
+void SoftEmuException(struct pt_regs *regs)
+{
+#ifdef CONFIG_CMD_KGDB
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ show_regs(regs);
+ print_backtrace((unsigned long *)regs->gpr[1]);
+ panic("Software Emulation Exception");
+}
+
+
+void UnknownException(struct pt_regs *regs)
+{
+#ifdef CONFIG_CMD_KGDB
+ if (debugger_exception_handler && (*debugger_exception_handler)(regs))
+ return;
+#endif
+ printf("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
+ regs->nip, regs->msr, regs->trap);
+ _exception(0, regs);
+}
+
+#ifdef CONFIG_CMD_BEDBUG
+extern void do_bedbug_breakpoint(struct pt_regs *);
+#endif
+
+void DebugException(struct pt_regs *regs)
+{
+ printf("Debugger trap at @ %lx\n", regs->nip);
+ show_regs(regs);
+#ifdef CONFIG_CMD_BEDBUG
+ do_bedbug_breakpoint(regs);
+#endif
+}
diff --git a/arch/powerpc/cpu/mpc512x/u-boot.lds b/arch/powerpc/cpu/mpc512x/u-boot.lds
new file mode 100644
index 0000000..0d86979
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/u-boot.lds
@@ -0,0 +1,90 @@
+/*
+ * (C) Copyright 2007-2010 DENX Software Engineering.
+ *
+ * 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
+ */
+
+OUTPUT_ARCH(powerpc)
+SECTIONS
+{
+ .text :
+ {
+ arch/powerpc/cpu/mpc512x/start.o (.text*)
+ *(.text*)
+ . = ALIGN(16);
+ *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+ }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x0FFF) & 0xFFFFF000;
+ _erotext = .;
+ PROVIDE (erotext = .);
+ .reloc :
+ {
+ _GOT2_TABLE_ = .;
+ KEEP(*(.got2))
+ KEEP(*(.got))
+ PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4);
+ _FIXUP_TABLE_ = .;
+ KEEP(*(.fixup))
+ *(.fixup)
+ }
+ __got2_entries = ((_GLOBAL_OFFSET_TABLE_ - _GOT2_TABLE_) >> 2) - 1;
+ __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+ .data :
+ {
+ *(.data*)
+ *(.sdata*)
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+
+ . = ALIGN(4);
+ .u_boot_list : {
+ KEEP(*(SORT(.u_boot_list*)));
+ }
+
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(4096);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(4096);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss (NOLOAD) :
+ {
+ *(.bss*)
+ *(.sbss*)
+ *(COMMON)
+ . = ALIGN(4);
+ }
+ __bss_end = . ;
+ PROVIDE (end = .);
+}
+ENTRY(_start)
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