Support for spc1920 board.
Patch by Markus Klotzbuecher, 12 Jul 2006
diff --git a/board/spc1920/Makefile b/board/spc1920/Makefile
new file mode 100644
index 0000000..47afef7
--- /dev/null
+++ b/board/spc1920/Makefile
@@ -0,0 +1,40 @@
+#
+# (C) Copyright 2000
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = lib$(BOARD).a
+
+OBJS = $(BOARD).o
+
+$(LIB): .depend $(OBJS)
+ $(AR) crv $@ $(OBJS)
+
+#########################################################################
+
+.depend: Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+ $(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/spc1920/config.mk b/board/spc1920/config.mk
new file mode 100644
index 0000000..e361694
--- /dev/null
+++ b/board/spc1920/config.mk
@@ -0,0 +1,35 @@
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# Modified by, Yuli Barcohen, Arabella Software Ltd., yuli@arabellasw.com
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+#
+# Motorola old MPC821/860ADS, MPC8xxFADS, new MPC866ADS, and
+# MPC885ADS boards
+#
+
+#TEXT_BASE = 0xFE000000
+TEXT_BASE = 0xFFF00000
+PLATFORM_CPPFLAGS += -I$(TOPDIR)/board/spc1920
+HOST_CFLAGS += -I$(TOPDIR)/board/spc1920
+HOST_ENVIRO_CFLAGS += -I$(TOPDIR)/board/spc1920
diff --git a/board/spc1920/pld.h b/board/spc1920/pld.h
new file mode 100644
index 0000000..3254f82
--- /dev/null
+++ b/board/spc1920/pld.h
@@ -0,0 +1,14 @@
+#ifndef __PLD_H__
+#define __PLD_H__
+
+typedef struct spc1920_pld {
+ uchar com1_en;
+ uchar dsp_reset;
+ uchar dsp_hpi_on;
+ uchar codec_dsp_power_en;
+ uchar clk2_en;
+ uchar clk3_select;
+ uchar clk4_select;
+} spc1920_pld_t;
+
+#endif /* __PLD_H__ */
diff --git a/board/spc1920/spc1920.c b/board/spc1920/spc1920.c
new file mode 100644
index 0000000..44ab4be
--- /dev/null
+++ b/board/spc1920/spc1920.c
@@ -0,0 +1,237 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Modified by, Yuli Barcohen, Arabella Software Ltd., yuli@arabellasw.com
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <common.h>
+#include <mpc8xx.h>
+#include "pld.h"
+
+#define _NOT_USED_ 0xFFFFFFFF
+/* #define debug(fmt,args...) printf (fmt ,##args) */
+
+static long int dram_size (long int, long int *, long int);
+
+const uint sdram_table[] = {
+ /*
+ * Single Read. (Offset 0 in UPMB RAM)
+ */
+ 0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
+ 0x1FF77C47, /* last */
+ /*
+ * SDRAM Initialization (offset 5 in UPMB RAM)
+ *
+ * This is no UPM entry point. The following definition uses
+ * the remaining space to establish an initialization
+ * sequence, which is executed by a RUN command.
+ *
+ */
+ 0x1FF77C34, 0xEFEABC34, 0x1FB57C35, /* last */
+ /*
+ * Burst Read. (Offset 8 in UPMB RAM)
+ */
+ 0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
+ 0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Single Write. (Offset 18 in UPMB RAM)
+ */
+ 0x1F07FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Burst Write. (Offset 20 in UPMB RAM)
+ */
+ 0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
+ 0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */
+ _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Refresh (Offset 30 in UPMB RAM)
+ */
+ 0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
+ 0xFFFFFC84, 0xFFFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_,
+ _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
+ /*
+ * Exception. (Offset 3c in UPMB RAM)
+ */
+ 0x7FFFFC07, /* last */
+ _NOT_USED_, _NOT_USED_, _NOT_USED_,
+};
+
+long int initdram (int board_type)
+{
+ volatile immap_t *immr = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immr->im_memctl;
+ /* volatile spc1920_pld_t *pld = (spc1920_pld_t *) CFG_SPC1920_PLD_BASE; */
+
+ long int size_b0;
+ long int size8, size9;
+ int i;
+
+ /*
+ * Configure UPMB for SDRAM
+ */
+ upmconfig (UPMB, (uint *)sdram_table, sizeof(sdram_table)/sizeof(uint));
+
+ udelay(100);
+
+ memctl->memc_mptpr = CFG_MPTPR;
+
+ /* burst length=4, burst type=sequential, CAS latency=2 */
+ memctl->memc_mar = CFG_MAR;
+
+ /*
+ * Map controller bank 1 to the SDRAM bank at preliminary address.
+ */
+ memctl->memc_or1 = CFG_OR1_PRELIM;
+ memctl->memc_br1 = CFG_BR1_PRELIM;
+
+ /* initialize memory address register */
+ memctl->memc_mbmr = CFG_MBMR_8COL; /* refresh not enabled yet */
+
+ /* mode initialization (offset 5) */
+ udelay (200); /* 0x80006105 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_UPM_B | MCR_MB_CS1 | MCR_MLCF (1) | MCR_MAD (0x05);
+
+ /* run 2 refresh sequence with 4-beat refresh burst (offset 0x30) */
+ udelay (1); /* 0x80006130 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_UPM_B | MCR_MB_CS1 | MCR_MLCF (1) | MCR_MAD (0x30);
+ udelay (1); /* 0x80006130 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_UPM_B | MCR_MB_CS1 | MCR_MLCF (1) | MCR_MAD (0x30);
+ udelay (1); /* 0x80006106 */
+ memctl->memc_mcr = MCR_OP_RUN | MCR_UPM_B | MCR_MB_CS1 | MCR_MLCF (1) | MCR_MAD (0x06);
+
+ memctl->memc_mbmr |= MBMR_PTBE; /* refresh enabled */
+
+ udelay (200);
+
+ /* Need at least 10 DRAM accesses to stabilize */
+ for (i = 0; i < 10; ++i) {
+ volatile unsigned long *addr =
+ (volatile unsigned long *) CFG_SDRAM_BASE;
+ unsigned long val;
+
+ val = *(addr + i);
+ *(addr + i) = val;
+ }
+
+ /*
+ * Check Bank 0 Memory Size for re-configuration
+ *
+ * try 8 column mode
+ */
+ size8 = dram_size (CFG_MBMR_8COL, (long *)CFG_SDRAM_BASE, SDRAM_MAX_SIZE);
+
+ udelay (1000);
+
+ /*
+ * try 9 column mode
+ */
+ size9 = dram_size (CFG_MBMR_9COL, (long *)CFG_SDRAM_BASE, SDRAM_MAX_SIZE);
+
+ if (size8 < size9) { /* leave configuration at 9 columns */
+ size_b0 = size9;
+ memctl->memc_mbmr = CFG_MBMR_9COL | MBMR_PTBE;
+ udelay (500);
+ } else { /* back to 8 columns */
+ size_b0 = size8;
+ memctl->memc_mbmr = CFG_MBMR_8COL | MBMR_PTBE;
+ udelay (500);
+ }
+
+ /*
+ * Final mapping:
+ */
+
+ memctl->memc_or1 = ((-size_b0) & 0xFFFF0000) |
+ OR_CSNT_SAM | OR_G5LS | SDRAM_TIMING;
+ memctl->memc_br1 = (CFG_SDRAM_BASE & BR_BA_MSK) | BR_MS_UPMB | BR_V;
+ udelay (1000);
+
+
+ /* PLD Setup */
+ memctl->memc_or5 = CFG_OR5_PRELIM;
+ memctl->memc_br5 = CFG_BR5_PRELIM;
+ udelay(1000);
+
+ return (size_b0);
+}
+
+/*
+ * Check memory range for valid RAM. A simple memory test determines
+ * the actually available RAM size between addresses `base' and
+ * `base + maxsize'. Some (not all) hardware errors are detected:
+ * - short between address lines
+ * - short between data lines
+ */
+static long int dram_size (long int mbmr_value, long int *base,
+ long int maxsize)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+ memctl->memc_mbmr = mbmr_value;
+
+ return (get_ram_size (base, maxsize));
+}
+
+
+/************* other stuff ******************/
+
+
+int board_early_init_f(void)
+{
+ volatile immap_t *immap = (immap_t *) CFG_IMMR;
+ volatile memctl8xx_t *memctl = &immap->im_memctl;
+
+
+ /* Turn on LED PD9 */
+ immap->im_ioport.iop_pdpar &= ~(0x0040);
+ immap->im_ioport.iop_pddir |= 0x0040;
+ immap->im_ioport.iop_pddat |= 0x0040;
+
+ /* Enable PD10 (COM2_EN) */
+ immap->im_ioport.iop_pdpar &= ~0x0020;
+ immap->im_ioport.iop_pddir &= ~0x4000;
+ immap->im_ioport.iop_pddir |= 0x0020;
+ immap->im_ioport.iop_pddat |= 0x0020;
+
+
+#ifdef CFG_SMC1_PLD_CLK4 /* SMC1 uses CLK4 from PLD */
+ immap->im_cpm.cp_simode |= 0x7000;
+ immap->im_cpm.cp_simode &= ~(0x8000);
+#endif
+
+ return 0;
+}
+
+
+int checkboard (void)
+{
+ puts("Board: SPC1920\n");
+ return 0;
+}
diff --git a/board/spc1920/u-boot.lds b/board/spc1920/u-boot.lds
new file mode 100644
index 0000000..d526d1d
--- /dev/null
+++ b/board/spc1920/u-boot.lds
@@ -0,0 +1,144 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+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 :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector layout of our flash chips! XXX FIXME XXX */
+
+ cpu/mpc8xx/start.o (.text)
+ cpu/mpc8xx/traps.o (.text)
+ common/dlmalloc.o (.text)
+ lib_ppc/ppcstring.o (.text)
+ lib_generic/vsprintf.o (.text)
+ lib_generic/crc32.o (.text)
+ lib_generic/zlib.o (.text)
+ lib_ppc/cache.o (.text)
+ lib_ppc/time.o (.text)
+
+ . = DEFINED(env_offset) ? env_offset : .;
+ common/environment.o (.ppcenv)
+
+ *(.text)
+ *(.fixup)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ *(.rodata.str1.4)
+ *(.eh_frame)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _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(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+ _end = . ;
+ PROVIDE (end = .);
+}