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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/config.mk29
-rw-r--r--arch/powerpc/cpu/mpc512x/cpu.c216
-rw-r--r--arch/powerpc/cpu/mpc512x/cpu_init.c92
-rw-r--r--arch/powerpc/cpu/mpc512x/diu.c188
-rw-r--r--arch/powerpc/cpu/mpc512x/fixed_sdram.c152
-rw-r--r--arch/powerpc/cpu/mpc512x/i2c.c403
-rw-r--r--arch/powerpc/cpu/mpc512x/ide.c128
-rw-r--r--arch/powerpc/cpu/mpc512x/iim.c394
-rw-r--r--arch/powerpc/cpu/mpc512x/interrupts.c61
-rw-r--r--arch/powerpc/cpu/mpc512x/iopin.c49
-rw-r--r--arch/powerpc/cpu/mpc512x/pci.c227
-rw-r--r--arch/powerpc/cpu/mpc512x/serial.c193
-rw-r--r--arch/powerpc/cpu/mpc512x/speed.c156
-rw-r--r--arch/powerpc/cpu/mpc512x/start.S711
-rw-r--r--arch/powerpc/cpu/mpc512x/traps.c212
-rw-r--r--arch/powerpc/cpu/mpc512x/u-boot.lds120
18 files changed, 3409 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc512x/Makefile b/arch/powerpc/cpu/mpc512x/Makefile
new file mode 100644
index 0000000..1719c66
--- /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).a
+
+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_FSL_DIU_FB} += ../../../../board/freescale/common/fsl_diu_fb.o
+COBJS-${CONFIG_FSL_DIU_FB} += ../../../../board/freescale/common/fsl_logo_bmp.o
+COBJS-${CONFIG_CMD_IDE} += ide.o
+COBJS-${CONFIG_IIM} += iim.o
+COBJS-$(CONFIG_PCI) += pci.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)
+ $(AR) $(ARFLAGS) $@ $(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..957d4be2
--- /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/config.mk b/arch/powerpc/cpu/mpc512x/config.mk
new file mode 100644
index 0000000..b29edb1
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/config.mk
@@ -0,0 +1,29 @@
+#
+# (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
+#
+PLATFORM_RELFLAGS += -fPIC -meabi
+
+PLATFORM_CPPFLAGS += -DCONFIG_MPC512X -DCONFIG_E300 \
+ -ffixed-r2 -msoft-float -mcpu=603e
+
+# Use default linker script.
+# A board port can override this setting in board/*/config.mk
+LDSCRIPT := $(SRCTREE)/arch/powerpc/cpu/mpc512x/u-boot.lds
diff --git a/arch/powerpc/cpu/mpc512x/cpu.c b/arch/powerpc/cpu/mpc512x/cpu.c
new file mode 100644
index 0000000..09cbd20
--- /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->csb_clk),
+ gd->reset_status & 0xffff);
+ return 0;
+}
+
+
+int
+do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *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..fe6beaf
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/cpu_init.c
@@ -0,0 +1,92 @@
+/*
+ * 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/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));
+
+ /* 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->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);
+
+ /*
+ * 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);
+}
+
+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..9361161
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/diu.c
@@ -0,0 +1,188 @@
+/*
+ * 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 "../../../../board/freescale/common/fsl_diu_fb.h"
+
+#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
+#include <stdio_dev.h>
+#include <video_fb.h>
+#endif
+
+#ifdef CONFIG_FSL_DIU_LOGO_BMP
+extern unsigned int FSL_Logo_BMP[];
+#else
+#define FSL_Logo_BMP NULL
+#endif
+
+static int xres, yres;
+
+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));
+}
+
+char *valid_bmp(char *addr)
+{
+ unsigned long h_addr;
+
+ h_addr = simple_strtoul(addr, NULL, 16);
+ if (h_addr < CONFIG_SYS_FLASH_BASE ||
+ h_addr >= (CONFIG_SYS_FLASH_BASE + CONFIG_SYS_FLASH_SIZE - 1)) {
+ printf("bmp addr %lx is not a valid flash address\n", h_addr);
+ return 0;
+ } else if ((*(char *)(h_addr) != 'B') || (*(char *)(h_addr+1) != 'M')) {
+ printf("bmp addr is not a bmp\n");
+ return 0;
+ } else
+ return (char *)h_addr;
+}
+
+int mpc5121_diu_init(void)
+{
+ unsigned int pixel_format;
+ char *bmp = NULL;
+ char *bmp_env;
+
+ xres = 1024;
+ yres = 768;
+ pixel_format = 0x88883316;
+
+ debug("mpc5121_diu_init\n");
+ bmp_env = getenv("diu_bmp_addr");
+ if (bmp_env) {
+ bmp = valid_bmp(bmp_env);
+ }
+ if (!bmp)
+ bmp = (char *)FSL_Logo_BMP;
+ return fsl_diu_init(xres, pixel_format, 0, (unsigned char *)bmp);
+}
+
+int mpc5121diu_init_show_bmp(cmd_tbl_t *cmdtp,
+ int flag, int argc, char *argv[])
+{
+ unsigned int addr;
+
+ if (argc < 2) {
+ cmd_usage(cmdtp);
+ return 1;
+ }
+
+ if (!strncmp(argv[1], "init", 4)) {
+#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
+ fsl_diu_clear_screen();
+ drv_video_init();
+#else
+ return mpc5121_diu_init();
+#endif
+ } else {
+ addr = simple_strtoul(argv[1], NULL, 16);
+ fsl_diu_clear_screen();
+ fsl_diu_display_bmp((unsigned char *)addr, 0, 0, 0);
+ }
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ diufb, CONFIG_SYS_MAXARGS, 1, mpc5121diu_init_show_bmp,
+ "Init or Display BMP file",
+ "init\n - initialize DIU\n"
+ "addr\n - display bmp at address 'addr'"
+ );
+
+
+#if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
+
+/*
+ * The Graphic Device
+ */
+GraphicDevice ctfb;
+void *video_hw_init(void)
+{
+ GraphicDevice *pGD = (GraphicDevice *) &ctfb;
+ struct fb_info *info;
+
+ if (mpc5121_diu_init() < 0)
+ return NULL;
+
+ /* fill in Graphic device struct */
+ sprintf(pGD->modeIdent, "%dx%dx%d %dkHz %dHz",
+ xres, yres, 32, 64, 60);
+
+ pGD->frameAdrs = (unsigned int)fsl_fb_open(&info);
+ pGD->winSizeX = xres;
+ pGD->winSizeY = yres - info->logo_height;
+ pGD->plnSizeX = pGD->winSizeX;
+ pGD->plnSizeY = pGD->winSizeY;
+
+ pGD->gdfBytesPP = 4;
+ pGD->gdfIndex = GDF_32BIT_X888RGB;
+
+ pGD->isaBase = 0;
+ pGD->pciBase = 0;
+ pGD->memSize = info->screen_size - info->logo_size;
+
+ /* Cursor Start Address */
+ pGD->dprBase = 0;
+ pGD->vprBase = 0;
+ pGD->cprBase = 0;
+
+ return (void *)pGD;
+}
+
+/**
+ * Set the LUT
+ *
+ * @index: color number
+ * @r: red
+ * @b: blue
+ * @g: green
+ */
+void video_set_lut
+ (unsigned int index, unsigned char r, unsigned char g, unsigned char b)
+{
+ return;
+}
+
+#endif /* defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE) */
diff --git a/arch/powerpc/cpu/mpc512x/fixed_sdram.c b/arch/powerpc/cpu/mpc512x/fixed_sdram.c
new file mode 100644
index 0000000..442b5fc
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/fixed_sdram.c
@@ -0,0 +1,152 @@
+/*
+ * (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_DDR_SIZE * 1024 * 1024;
+ 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, 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 */
+ out_be32(&im->mddrc.ddr_sys_config, MDDRC_SYS_CFG_EN);
+
+ /* 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);
+
+ return msize;
+}
diff --git a/arch/powerpc/cpu/mpc512x/i2c.c b/arch/powerpc/cpu/mpc512x/i2c.c
new file mode 100644
index 0000000..e2d9097
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/i2c.c
@@ -0,0 +1,403 @@
+/*
+ * (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)) {
+ volatile int temp;
+ mpc_reg_out (&regs->mcr, I2C_STA, I2C_STA);
+ temp = 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->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..dd6b2f4
--- /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->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/iim.c b/arch/powerpc/cpu/mpc512x/iim.c
new file mode 100644
index 0000000..8f2eb37
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/iim.c
@@ -0,0 +1,394 @@
+/*
+ * Copyright 2008 Silicon Turnkey Express, Inc.
+ * Martha Marx <mmarx@silicontkx.com>
+ *
+ * ADS5121 IIM (Fusebox) Interface
+ *
+ * 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>
+
+#ifdef CONFIG_CMD_FUSE
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static char cur_bank = '1';
+
+char *iim_err_msg(u32 err)
+{
+ static char *IIM_errs[] = {
+ "Parity Error in cache",
+ "Explicit Sense Cycle Error",
+ "Write to Locked Register Error",
+ "Read Protect Error",
+ "Override Protect Error",
+ "Write Protect Error"};
+
+ int i;
+
+ if (!err)
+ return "";
+ for (i = 1; i < 8; i++)
+ if (err & (1 << i))
+ printf("IIM - %s\n", IIM_errs[i-1]);
+ return "";
+}
+
+int in_range(int n, int min, int max, char *err, char *usg)
+{
+ if (n > max || n < min) {
+ printf(err);
+ printf("Usage:\n%s\n", usg);
+ return 0;
+ }
+ return 1;
+}
+
+int ads5121_fuse_read(int bank, int fstart, int num)
+{
+ iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim;
+ u32 *iim_fb, dummy;
+ int f, ctr;
+
+ out_be32(&iim->err, in_be32(&iim->err));
+ if (bank == 0)
+ iim_fb = (u32 *)&(iim->fbac0);
+ else
+ iim_fb = (u32 *)&(iim->fbac1);
+/* try a read to see if Read Protect is set */
+ dummy = in_be32(&iim_fb[0]);
+ if (in_be32(&iim->err) & IIM_ERR_RPE) {
+ printf("\tRead protect fuse is set\n");
+ out_be32(&iim->err, IIM_ERR_RPE);
+ return 0;
+ }
+ printf("Reading Bank %d cache\n", bank);
+ for (f = fstart, ctr = 0; num > 0; ctr++, num--, f++) {
+ if (ctr % 4 == 0)
+ printf("F%2d:", f);
+ printf("\t%#04x", (u8)(iim_fb[f]));
+ if (ctr % 4 == 3)
+ printf("\n");
+ }
+ if (ctr % 4 != 0)
+ printf("\n");
+}
+
+int ads5121_fuse_override(int bank, int f, u8 val)
+{
+ iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim;
+ u32 *iim_fb;
+ u32 iim_stat;
+ int i;
+
+ out_be32(&iim->err, in_be32(&iim->err));
+ if (bank == 0)
+ iim_fb = (u32 *)&(iim->fbac0);
+ else
+ iim_fb = (u32 *)&(iim->fbac1);
+/* try a read to see if Read Protect is set */
+ iim_stat = in_be32(&iim_fb[0]);
+ if (in_be32(&iim->err) & IIM_ERR_RPE) {
+ printf("Read protect fuse is set on bank %d;"
+ "Override protect may also be set\n", bank);
+ printf("An attempt will be made to override\n");
+ out_be32(&iim->err, IIM_ERR_RPE);
+ }
+ if (iim_stat & IIM_FBAC_FBOP) {
+ printf("Override protect fuse is set on bank %d\n", bank);
+ return 1;
+ }
+ if (f > IIM_FMAX) /* reset the entire bank */
+ for (i = 0; i < IIM_FMAX + 1; i++)
+ out_be32(&iim_fb[i], 0);
+ else
+ out_be32(&iim_fb[f], val);
+ return 0;
+}
+
+int ads5121_fuse_prog(cmd_tbl_t *cmdtp, int bank, char *fuseno_bitno)
+{
+ iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim;
+ int f, i, bitno;
+ u32 stat, err;
+
+ f = simple_strtol(fuseno_bitno, NULL, 10);
+ if (f == 0 && fuseno_bitno[0] != '0')
+ f = -1;
+ if (!in_range(f, 0, IIM_FMAX,
+ "<frow> must be between 0-31\n\n", cmdtp->usage))
+ return 1;
+ bitno = -1;
+ for (i = 0; i < 6; i++) {
+ if (fuseno_bitno[i] == '_') {
+ bitno = simple_strtol(&(fuseno_bitno[i+1]), NULL, 10);
+ if (bitno == 0 && fuseno_bitno[i+1] != '0')
+ bitno = -1;
+ break;
+ }
+ }
+ if (!in_range(bitno, 0, 7, "Bit number ranges from 0-7\n"
+ "Example of <frow_bitno>: \"18_4\" sets bit 4 of row 18\n",
+ cmdtp->usage))
+ return 1;
+ out_be32(&iim->err, in_be32(&iim->err));
+ out_be32(&iim->prg_p, IIM_PRG_P_SET);
+ out_be32(&iim->ua, IIM_SET_UA(bank, f));
+ out_be32(&iim->la, IIM_SET_LA(f, bitno));
+#ifdef DEBUG
+ printf("Programming disabled with DEBUG defined \n");
+ printf(""Set up to pro
+ printf("iim.ua = %x; iim.la = %x\n", iim->ua, iim->la);
+#else
+ out_be32(&iim->fctl, IIM_FCTL_PROG_PULSE | IIM_FCTL_PROG);
+ do
+ udelay(20);
+ while ((stat = in_be32(&iim->stat)) & IIM_STAT_BUSY);
+ out_be32(&iim->prg_p, 0);
+ err = in_be32(&iim->err);
+ if (stat & IIM_STAT_PRGD) {
+ if (!(err & (IIM_ERR_WPE | IIM_ERR_WPE))) {
+ printf("Fuse is successfully set");
+ if (err)
+ printf(" - however there are other errors");
+ printf("\n");
+ }
+ iim->stat = 0;
+ }
+ if (err) {
+ iim_err_msg(err);
+ out_be32(&iim->err, in_be32(&iim->err));
+ }
+#endif
+}
+
+int ads5121_fuse_sense(int bank, int fstart, int num)
+{
+ iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim;
+ u32 iim_fbac;
+ u32 stat, err, err_hold = 0;
+ int f, ctr;
+
+ out_be32(&iim->err, in_be32(&iim->err));
+ if (bank == 0)
+ iim_fbac = in_be32(&iim->fbac0);
+ else
+ iim_fbac = in_be32(&iim->fbac1);
+ if (iim_fbac & IIM_FBAC_FBESP) {
+ printf("\tSense Protect disallows this operation\n");
+ out_be32(&iim->err, IIM_FBAC_FBESP);
+ return 1;
+ }
+ err = in_be32(&iim->err);
+ if (err) {
+ iim_err_msg(err);
+ err_hold |= err;
+ }
+ if (err & IIM_ERR_RPE)
+ printf("\tRead protect fuse is set; "
+ "Sense Protect may be set but will be attempted\n");
+ if (err)
+ out_be32(&iim->err, err);
+ printf("Sensing fuse(s) on Bank %d\n", bank);
+ for (f = fstart, ctr = 0; num > 0; ctr++, f++, num--) {
+ out_be32(&iim->ua, IIM_SET_UA(bank, f));
+ out_be32(&iim->la, IIM_SET_LA(f, 0));
+ out_be32(&iim->fctl, IIM_FCTL_ESNS_N);
+ do
+ udelay(20);
+ while ((stat = in_be32(&iim->stat)) & IIM_STAT_BUSY);
+ err = in_be32(&iim->err);
+ if (err & IIM_ERR_SNSE) {
+ iim_err_msg(err);
+ out_be32(&iim->err, IIM_ERR_SNSE);
+ return 1;
+ }
+ if (stat & IIM_STAT_SNSD) {
+ out_be32(&iim->stat, 0);
+ if (ctr % 4 == 0)
+ printf("F%2d:", f);
+ printf("\t%#04x", (u8)iim->sdat);
+ if (ctr % 4 == 3)
+ printf("\n");
+ }
+ if (err) {
+ err_hold |= err;
+ out_be32(&iim->err, err);
+ }
+ }
+ if (ctr % 4 != 0)
+ printf("\n");
+ if (err_hold)
+ iim_err_msg(err_hold);
+
+ return 0;
+}
+
+int ads5121_fuse_stat(int bank)
+{
+ iim512x_t *iim = &((immap_t *) CONFIG_SYS_IMMR)->iim;
+ u32 iim_fbac;
+ u32 err;
+
+ out_be32(&iim->err, in_be32(&iim->err));
+ if (bank == 0)
+ iim_fbac = in_be32(&iim->fbac0);
+ else
+ iim_fbac = in_be32(&iim->fbac1);
+ err = in_be32(&iim->err);
+ if (err)
+ iim_err_msg(err);
+ if (err & IIM_ERR_RPE || iim_fbac & IIM_FBAC_FBRP) {
+ if (iim_fbac == 0)
+ printf("Since protection settings can't be read - "
+ "try sensing fuse row 0;\n");
+ return 0;
+ }
+ if (iim_fbac & IIM_PROTECTION)
+ printf("Protection Fuses Bank %d = %#04x:\n", bank, iim_fbac);
+ else if (!(err & IIM_ERR_RPE))
+ printf("No Protection fuses are set\n");
+ if (iim_fbac & IIM_FBAC_FBWP)
+ printf("\tWrite Protect fuse is set\n");
+ if (iim_fbac & IIM_FBAC_FBOP)
+ printf("\tOverride Protect fuse is set\n");
+ if (iim_fbac & IIM_FBAC_FBESP)
+ printf("\tSense Protect Fuse is set\n");
+ out_be32(&iim->err, in_be32(&iim->err));
+
+ return 0;
+}
+
+int do_ads5121_fuse(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ int frow, n, v, bank;
+
+ if (cur_bank == '0')
+ bank = 0;
+ else
+ bank = 1;
+
+ switch (argc) {
+ case 0:
+ case 1:
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ case 2:
+ if (strncmp(argv[1], "stat", 4) == 0)
+ return ads5121_fuse_stat(bank);
+ if (strncmp(argv[1], "read", 4) == 0)
+ return ads5121_fuse_read(bank, 0, IIM_FMAX + 1);
+ if (strncmp(argv[1], "sense", 5) == 0)
+ return ads5121_fuse_sense(bank, 0, IIM_FMAX + 1);
+ if (strncmp(argv[1], "ovride", 6) == 0)
+ return ads5121_fuse_override(bank, IIM_FMAX + 1, 0);
+ if (strncmp(argv[1], "bank", 4) == 0) {
+ printf("Active Fuse Bank is %c\n", cur_bank);
+ return 0;
+ }
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ case 3:
+ if (strncmp(argv[1], "bank", 4) == 0) {
+ if (argv[2][0] == '0')
+ cur_bank = '0';
+ else if (argv[2][0] == '1')
+ cur_bank = '1';
+ else {
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ printf("Setting Active Fuse Bank to %c\n", cur_bank);
+ return 0;
+ }
+ if (strncmp(argv[1], "prog", 4) == 0)
+ return ads5121_fuse_prog(cmdtp, bank, argv[2]);
+
+ frow = (int)simple_strtol(argv[2], NULL, 10);
+ if (frow == 0 && argv[2][0] != '0')
+ frow = -1;
+ if (!in_range(frow, 0, IIM_FMAX,
+ "<frow> must be between 0-31\n\n", cmdtp->usage))
+ return 1;
+ if (strncmp(argv[1], "read", 4) == 0)
+ return ads5121_fuse_read(bank, frow, 1);
+ if (strncmp(argv[1], "ovride", 6) == 0)
+ return ads5121_fuse_override(bank, frow, 0);
+ if (strncmp(argv[1], "sense", 5) == 0)
+ return ads5121_fuse_sense(bank, frow, 1);
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ case 4:
+ frow = (int)simple_strtol(argv[2], NULL, 10);
+ if (frow == 0 && argv[2][0] != '0')
+ frow = -1;
+ if (!in_range(frow, 0, IIM_FMAX,
+ "<frow> must be between 0-31\n\n", cmdtp->usage))
+ return 1;
+ if (strncmp(argv[1], "read", 4) == 0) {
+ n = (int)simple_strtol(argv[3], NULL, 10);
+ if (!in_range(frow + n, frow + 1, IIM_FMAX + 1,
+ "<frow>+<n> must be between 1-32\n\n",
+ cmdtp->usage))
+ return 1;
+ return ads5121_fuse_read(bank, frow, n);
+ }
+ if (strncmp(argv[1], "ovride", 6) == 0) {
+ v = (int)simple_strtol(argv[3], NULL, 10);
+ return ads5121_fuse_override(bank, frow, v);
+ }
+ if (strncmp(argv[1], "sense", 5) == 0) {
+ n = (int)simple_strtol(argv[3], NULL, 10);
+ if (!in_range(frow + n, frow + 1, IIM_FMAX + 1,
+ "<frow>+<n> must be between 1-32\n\n",
+ cmdtp->usage))
+ return 1;
+ return ads5121_fuse_sense(bank, frow, n);
+ }
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ default: /* at least 5 args */
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+}
+
+U_BOOT_CMD(
+ fuse, CONFIG_SYS_MAXARGS, 0, do_ads5121_fuse,
+ " - Read, Sense, Override or Program Fuses\n",
+ "bank <n> - sets active Fuse Bank to 0 or 1\n"
+ " no args shows current active bank\n"
+ "fuse stat - print active fuse bank's protection status\n"
+ "fuse read [<frow> [<n>]] - print <n> fuse rows starting at <frow>\n"
+ " no args to print entire bank's fuses\n"
+ "fuse ovride [<frow> [<v>]]- override fuses at <frow> with <v>\n"
+ " no <v> defaults to 0 for the row\n"
+ " no args resets entire bank to 0\n"
+ " NOTE - settings persist until hard reset\n"
+ "fuse sense [<frow>] - senses current fuse at <frow>\n"
+ " no args for entire bank\n"
+ "fuse prog <frow_bit> - program fuse at row <frow>, bit <_bit>\n"
+ " <frow> is 0-31, <bit> is 0-7; eg. 13_2 \n"
+ " WARNING - this is permanent"
+);
+#endif /* CONFIG_CMD_FUSE */
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..be20947
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/iopin.c
@@ -0,0 +1,49 @@
+/*
+ * (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;
+}
diff --git a/arch/powerpc/cpu/mpc512x/pci.c b/arch/powerpc/cpu/mpc512x/pci.c
new file mode 100644
index 0000000..141db8b
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/pci.c
@@ -0,0 +1,227 @@
+/*
+ * 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;
+ volatile pciconf512x_t *pci_conf;
+ 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;
+ pci_conf = &im->pci_conf;
+
+ 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..ec2f41b
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/serial.c
@@ -0,0 +1,193 @@
+/*
+ * (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 <asm/io.h>
+#include <asm/processor.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;
+
+ /* 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);
+
+ out_be32(&psc->tfsize, CONSOLE_FIFO_TX_SIZE | (CONSOLE_FIFO_TX_ADDR << 16));
+ out_be32(&psc->rfsize, CONSOLE_FIFO_RX_SIZE | (CONSOLE_FIFO_RX_ADDR << 16));
+
+ /* 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(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+ unsigned long baseclk, div;
+
+ /* calculate dividor for setting PSC CTUR and CTLR registers */
+ baseclk = (gd->ips_clk + 8) / 16;
+ div = (baseclk + (gd->baudrate / 2)) / gd->baudrate;
+
+ out_8(&psc->ctur, (div >> 8) & 0xff);
+ out_8(&psc->ctlr, div & 0xff); /* set baudrate */
+}
+
+int serial_init(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+ 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();
+
+ /* 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;
+}
+
+void serial_putc (const char c)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+ if (c == '\n')
+ serial_putc ('\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 (const char c)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+ /* Wait for last character to go. */
+ while (!(in_be16(&psc->psc_status) & PSC_SR_TXEMP))
+ ;
+
+ out_8(&psc->tfdata_8, c);
+}
+
+
+void serial_puts (const char *s)
+{
+ while (*s) {
+ serial_putc (*s++);
+ }
+}
+
+int serial_getc (void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+ /* Wait for a character to arrive. */
+ while (in_be32(&psc->rfstat) & PSC_FIFO_EMPTY)
+ ;
+
+ return in_8(&psc->rfdata_8);
+}
+
+int serial_tstc (void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+ return !(in_be32(&psc->rfstat) & PSC_FIFO_EMPTY);
+}
+
+void serial_setrts(int s)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+ if (s) {
+ /* Assert RTS (become LOW) */
+ out_8(&psc->op1, 0x1);
+ }
+ else {
+ /* Negate RTS (become HIGH) */
+ out_8(&psc->op0, 0x1);
+ }
+}
+
+int serial_getcts(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile psc512x_t *psc = (psc512x_t *) &im->psc[CONFIG_PSC_CONSOLE];
+
+ return (in_8(&psc->ip) & 0x1) ? 0 : 1;
+}
+#endif /* CONFIG_PSC_CONSOLE */
diff --git a/arch/powerpc/cpu/mpc512x/speed.c b/arch/powerpc/cpu/mpc512x/speed.c
new file mode 100644
index 0000000..ce8d094
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/speed.c
@@ -0,0 +1,156 @@
+/*
+ * (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->ips_clk = ips_clk;
+ gd->pci_clk = pci_clk;
+ gd->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->csb_clk;
+}
+
+int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *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->csb_clk));
+ printf(" IPS Bus: %-4s MHz\n", strmhz(buf, gd->ips_clk));
+ printf(" PCI: %-4s MHz\n", strmhz(buf, gd->pci_clk));
+ printf(" DDR: %-4s MHz\n", strmhz(buf, 2*gd->csb_clk));
+ return 0;
+}
+
+U_BOOT_CMD(clocks, 1, 0, do_clocks,
+ "print clock configuration",
+ " clocks"
+);
+
+int prt_mpc512x_clks (void)
+{
+ do_clocks (NULL, 0, 0, NULL);
+ return (0);
+}
diff --git a/arch/powerpc/cpu/mpc512x/start.S b/arch/powerpc/cpu/mpc512x/start.S
new file mode 100644
index 0000000..d26b617
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/start.S
@@ -0,0 +1,711 @@
+/*
+ * 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 <config.h>
+#include <timestamp.h>
+#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>
+
+#ifndef CONFIG_IDENT_STRING
+#define CONFIG_IDENT_STRING "MPC512X"
+#endif
+
+/*
+ * 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(_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
+ .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
+ .ascii " ", CONFIG_IDENT_STRING, "\0"
+
+/*
+ * Vector Table
+ */
+ .text
+ . = EXC_OFF_SYS_RESET
+
+ .globl _start
+ /* Start from here after reset/power on */
+_start:
+ li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
+ 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
+
+ /* r3: BOOTFLAG */
+ mr r3, r21
+ /* 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
+ add r0,r0,r11
+ stw r10,0(r3)
+ stw r0,0(r4)
+ bdnz 3b
+4:
+clear_bss:
+ /*
+ * Now clear BSS segment
+ */
+ lwz r3,GOT(__bss_start)
+ lwz r4,GOT(_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..786f4a5
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/traps.c
@@ -0,0 +1,212 @@
+/*
+ * (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
+ */
+
+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');
+ }
+ }
+}
+
+
+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;
+
+ if ((fixup = search_exception_table (regs->nip)) != 0) {
+ 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..c716799
--- /dev/null
+++ b/arch/powerpc/cpu/mpc512x/u-boot.lds
@@ -0,0 +1,120 @@
+/*
+ * (C) Copyright 2007 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
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ arch/powerpc/cpu/mpc512x/start.o (.text)
+ *(.text)
+ *(.got1)
+ . = ALIGN(16);
+ *(.eh_frame)
+ *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x0FFF) & 0xFFFFF000;
+ _erotext = .;
+ PROVIDE (erotext = .);
+ .reloc :
+ {
+ *(.got)
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >> 2;
+ __fixup_entries = (. - _FIXUP_TABLE_) >> 2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+
+ . = .;
+ __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) :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ . = ALIGN(4);
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}
+ENTRY(_start)
generated by cgit v1.1 at 2024-12-21 10:47:27 +0000