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-rw-r--r--board/sheldon/simpc8313/Makefile50
-rw-r--r--board/sheldon/simpc8313/config.mk13
-rw-r--r--board/sheldon/simpc8313/sdram.c193
-rw-r--r--board/sheldon/simpc8313/simpc8313.c134
4 files changed, 390 insertions, 0 deletions
diff --git a/board/sheldon/simpc8313/Makefile b/board/sheldon/simpc8313/Makefile
new file mode 100644
index 000000000..7c34c5e16
--- /dev/null
+++ b/board/sheldon/simpc8313/Makefile
@@ -0,0 +1,50 @@
+#
+# (C) Copyright 2006
+# 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 = $(obj)lib$(BOARD).a
+
+COBJS := $(BOARD).o sdram.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+clean:
+ rm -f $(SOBJS) $(OBJS)
+
+distclean: clean
+ rm -f $(LIB) core *.bak $(obj).depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/sheldon/simpc8313/config.mk b/board/sheldon/simpc8313/config.mk
new file mode 100644
index 000000000..ce1c0d8d9
--- /dev/null
+++ b/board/sheldon/simpc8313/config.mk
@@ -0,0 +1,13 @@
+ifndef NAND_SPL
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
+endif
+
+ifndef TEXT_BASE
+TEXT_BASE = 0x00100000
+endif
+
+ifdef CONFIG_NAND_LP
+PAD_TO = 0xFFF20000
+else
+PAD_TO = 0xFFF04000
+endif
diff --git a/board/sheldon/simpc8313/sdram.c b/board/sheldon/simpc8313/sdram.c
new file mode 100644
index 000000000..ebb70a232
--- /dev/null
+++ b/board/sheldon/simpc8313/sdram.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
+ * Copyright (C) Sheldon Instruments, Inc. 2008
+ *
+ * Author: Ron Madrid <info@sheldoninst.com>
+ *
+ * (C) Copyright 2006
+ * 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 <common.h>
+#include <mpc83xx.h>
+#include <spd_sdram.h>
+#include <asm/bitops.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/mmu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static long fixed_sdram(void);
+
+#if defined(CONFIG_NAND_SPL)
+void si_wait_i2c(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+
+ while (!(__raw_readb(&im->i2c[0].sr) & 0x02))
+ ;
+
+ __raw_writeb(0x00, &im->i2c[0].sr);
+
+ sync();
+
+ return;
+}
+
+void si_read_i2c(u32 lbyte, int count, u8 *buffer)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ u32 i;
+ u8 chip = 0x50 << 1; /* boot sequencer I2C */
+ u32 ubyte = (lbyte & 0xff00) >> 8;
+
+ lbyte &= 0xff;
+
+ /*
+ * Set up controller
+ */
+ __raw_writeb(0x3f, &im->i2c[0].fdr);
+ __raw_writeb(0x00, &im->i2c[0].adr);
+ __raw_writeb(0x00, &im->i2c[0].sr);
+ __raw_writeb(0x00, &im->i2c[0].dr);
+
+ while (__raw_readb(&im->i2c[0].sr) & 0x20)
+ ;
+
+ /*
+ * Writing address to device
+ */
+ __raw_writeb(0xb0, &im->i2c[0].cr);
+ sync();
+ __raw_writeb(chip, &im->i2c[0].dr);
+ si_wait_i2c();
+
+ __raw_writeb(0xb0, &im->i2c[0].cr);
+ sync();
+ __raw_writeb(ubyte, &im->i2c[0].dr);
+ si_wait_i2c();
+
+ __raw_writeb(lbyte, &im->i2c[0].dr);
+ si_wait_i2c();
+
+ __raw_writeb(0xb4, &im->i2c[0].cr);
+ sync();
+ __raw_writeb(chip + 1, &im->i2c[0].dr);
+ si_wait_i2c();
+
+ __raw_writeb(0xa0, &im->i2c[0].cr);
+ sync();
+
+ /*
+ * Dummy read
+ */
+ __raw_readb(&im->i2c[0].dr);
+
+ si_wait_i2c();
+
+ /*
+ * Read actual data
+ */
+ for (i = 0; i < count; i++)
+ {
+ if (i == (count - 2)) /* Reached next to last byte, No ACK */
+ __raw_writeb(0xa8, &im->i2c[0].cr);
+ if (i == (count - 1)) /* Reached last byte, STOP */
+ __raw_writeb(0x88, &im->i2c[0].cr);
+
+ /* Read byte of data */
+ buffer[i] = __raw_readb(&im->i2c[0].dr);
+
+ if (i == (count - 1))
+ break;
+ si_wait_i2c();
+ }
+
+ return;
+}
+#endif /* CONFIG_NAND_SPL */
+
+phys_size_t initdram(int board_type)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ volatile fsl_lbus_t *lbc= &im->lbus;
+ u32 msize;
+
+ if ((__raw_readl(&im->sysconf.immrbar) & IMMRBAR_BASE_ADDR) != (u32) im)
+ return -1;
+
+ /* DDR SDRAM - Main SODIMM */
+ __raw_writel(CONFIG_SYS_DDR_BASE & LAWBAR_BAR, &im->sysconf.ddrlaw[0].bar);
+
+ msize = fixed_sdram();
+
+ /* Local Bus setup lbcr and mrtpr */
+ __raw_writel(CONFIG_SYS_LBC_LBCR, &lbc->lbcr);
+ __raw_writel(CONFIG_SYS_LBC_MRTPR, &lbc->mrtpr);
+ sync();
+
+ /* return total bus SDRAM size(bytes) -- DDR */
+ return (msize * 1024 * 1024);
+}
+
+/*************************************************************************
+ * fixed sdram init -- reads values from boot sequencer I2C
+ ************************************************************************/
+static long fixed_sdram(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ u32 msizelog2, msize = 1;
+#if defined(CONFIG_NAND_SPL)
+ u32 i;
+ const u8 bytecount = 135;
+ u8 buffer[bytecount];
+ u32 addr, data;
+
+ si_read_i2c(0, bytecount, buffer);
+
+ for (i = 18; i < bytecount; i += 7){
+ addr = (u32)buffer[i];
+ addr <<= 8;
+ addr |= (u32)buffer[i + 1];
+ addr <<= 2;
+ data = (u32)buffer[i + 2];
+ data <<= 8;
+ data |= (u32)buffer[i + 3];
+ data <<= 8;
+ data |= (u32)buffer[i + 4];
+ data <<= 8;
+ data |= (u32)buffer[i + 5];
+
+ __raw_writel(data, (u32 *)(CONFIG_SYS_IMMR + addr));
+ }
+
+ sync();
+
+ /* enable DDR controller */
+ __raw_writel((__raw_readl(&im->ddr.sdram_cfg) | SDRAM_CFG_MEM_EN), &im->ddr.sdram_cfg);
+#endif /* (CONFIG_NAND_SPL) */
+
+ msizelog2 = ((__raw_readl(&im->sysconf.ddrlaw[0].ar) & LAWAR_SIZE) + 1);
+ msize <<= (msizelog2 - 20);
+
+ return msize;
+}
diff --git a/board/sheldon/simpc8313/simpc8313.c b/board/sheldon/simpc8313/simpc8313.c
new file mode 100644
index 000000000..25e5c2409
--- /dev/null
+++ b/board/sheldon/simpc8313/simpc8313.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) Freescale Semiconductor, Inc. 2006-2007
+ * Copyright (C) Sheldon Instruments, Inc. 2008
+ *
+ * Author: Ron Madrid <info@sheldoninst.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 <common.h>
+#include <libfdt.h>
+#include <pci.h>
+#include <mpc83xx.h>
+#include <ns16550.h>
+#include <nand.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int checkboard(void)
+{
+ puts("Board: Sheldon Instruments SIMPC8313\n");
+ return 0;
+}
+
+#ifndef CONFIG_NAND_SPL
+static struct pci_region pci_regions[] = {
+ {
+ bus_start: CONFIG_SYS_PCI1_MEM_BASE,
+ phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
+ size: CONFIG_SYS_PCI1_MEM_SIZE,
+ flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+ },
+ {
+ bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
+ phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
+ size: CONFIG_SYS_PCI1_MMIO_SIZE,
+ flags: PCI_REGION_MEM
+ },
+ {
+ bus_start: CONFIG_SYS_PCI1_IO_BASE,
+ phys_start: CONFIG_SYS_PCI1_IO_PHYS,
+ size: CONFIG_SYS_PCI1_IO_SIZE,
+ flags: PCI_REGION_IO
+ }
+};
+
+void pci_init_board(void)
+{
+ volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
+ volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
+ volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+ struct pci_region *reg[] = { pci_regions };
+ int warmboot;
+
+ /* Enable all 3 PCI_CLK_OUTPUTs. */
+ clk->occr |= 0xe0000000;
+
+ /*
+ * Configure PCI Local Access Windows
+ */
+ pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
+ pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;
+
+ pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
+ pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;
+
+ warmboot = gd->bd->bi_bootflags & BOOTFLAG_WARM;
+
+ mpc83xx_pci_init(1, reg, warmboot);
+}
+
+/*
+ * Miscellaneous late-boot configurations
+ */
+int misc_init_r(void)
+{
+ int rc = 0;
+
+ return rc;
+}
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+#ifdef CONFIG_PCI
+ ft_pci_setup(blob, bd);
+#endif
+}
+#endif
+#else /* CONFIG_NAND_SPL */
+void board_init_f(ulong bootflag)
+{
+ NS16550_init((NS16550_t)(CONFIG_SYS_IMMR + 0x4500),
+ CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
+ puts("NAND boot... ");
+ init_timebase();
+ initdram(0);
+ relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd,
+ CONFIG_SYS_NAND_U_BOOT_RELOC);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+ nand_boot();
+}
+
+void putc(char c)
+{
+ if (gd->flags & GD_FLG_SILENT)
+ return;
+
+ if (c == '\n')
+ NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), '\r');
+
+ NS16550_putc((NS16550_t)(CONFIG_SYS_IMMR + 0x4500), c);
+}
+#endif
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