This patch will create a new board, SIMPC8313, from Sheldon Instruments. This board boots from NAND devices and is configurable for either a large page or small page device.

Signed-off-by: Ron Madrid ron_madrid@sbcglobal.net --- MAINTAINERS | 4 + MAKEALL | 1 + Makefile | 20 + board/sheldon/simpc8313/Makefile | 50 +++ board/sheldon/simpc8313/config.mk | 13 + board/sheldon/simpc8313/sdram.c | 206 +++++++++++ board/sheldon/simpc8313/simpc8313.c | 136 +++++++ doc/README.simpc8313 | 71 ++++ include/configs/SIMPC8313.h | 534 +++++++++++++++++++++++++++ nand_spl/board/sheldon/simpc8313/Makefile | 101 +++++ nand_spl/board/sheldon/simpc8313/u-boot.lds | 52 +++ 11 files changed, 1188 insertions(+), 0 deletions(-) create mode 100644 board/sheldon/simpc8313/Makefile create mode 100644 board/sheldon/simpc8313/config.mk create mode 100644 board/sheldon/simpc8313/sdram.c create mode 100644 board/sheldon/simpc8313/simpc8313.c create mode 100644 doc/README.simpc8313 create mode 100644 include/configs/SIMPC8313.h create mode 100644 nand_spl/board/sheldon/simpc8313/Makefile create mode 100644 nand_spl/board/sheldon/simpc8313/u-boot.lds

diff --git a/MAINTAINERS b/MAINTAINERS index 750e374..f844ef4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -259,6 +259,10 @@ Jon Loeliger jdl@freescale.com

MPC8641HPCN MPC8641D

+Ron Madrid info@sheldoninst.com + + SIMPC8313 MPC8313 + Dan Malek dan@embeddedalley.com

stxgp3 MPC85xx diff --git a/MAKEALL b/MAKEALL index 9ccb9ac..635bd0d 100755 --- a/MAKEALL +++ b/MAKEALL @@ -339,6 +339,7 @@ LIST_83xx=" \ MPC837XEMDS \ MPC837XERDB \ MVBLM7 \ + SIMPC8313_LP \ sbc8349 \ TQM834x \ " diff --git a/Makefile b/Makefile index 7c13ce8..20c6d9c 100644 --- a/Makefile +++ b/Makefile @@ -2248,6 +2248,26 @@ MPC837XERDB_config: unconfig MVBLM7_config: unconfig @$(MKCONFIG) $(@:_config=) ppc mpc83xx mvblm7 matrix_vision

+SIMPC8313_LP_config \ +SIMPC8313_SP_config: unconfig + @mkdir -p $(obj)include + @mkdir -p $(obj)board/sheldon/simpc8313 + @mkdir -p $(obj)nand_spl/board/sheldon/simpc8313 + @if [ "$(findstring _LP_,$@)" ] ; then \ + $(XECHO) -n "...NAND..." ; \ + echo "TEXT_BASE = 0x00100000" > $(obj)board/sheldon/simpc8313/config.tmp ; \ + echo "#define CONFIG_NAND_U_BOOT" >> $(obj)include/config.h ; \ + echo "#define CONFIG_NAND_LP" >> $(obj)include/config.h ; \ + fi ; \ + if [ "$(findstring _SP_,$@)" ] ; then \ + $(XECHO) -n "...NAND..." ; \ + echo "TEXT_BASE = 0x00100000" > $(obj)board/sheldon/simpc8313/config.tmp ; \ + echo "#define CONFIG_NAND_U_BOOT" >> $(obj)include/config.h ; \ + echo "#define CONFIG_NAND_SP" >> $(obj)include/config.h ; \ + fi ; + @$(MKCONFIG) -a SIMPC8313 ppc mpc83xx simpc8313 sheldon + @echo "CONFIG_NAND_U_BOOT = y" >> $(obj)include/config.mk + sbc8349_config: unconfig @$(MKCONFIG) $(@:_config=) ppc mpc83xx sbc8349

diff --git a/board/sheldon/simpc8313/Makefile b/board/sheldon/simpc8313/Makefile new file mode 100644 index 0000000..7c34c5e --- /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 0000000..95f6481 --- /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 = 0xFE000000 +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 0000000..4af29e2 --- /dev/null +++ b/board/sheldon/simpc8313/sdram.c @@ -0,0 +1,206 @@ +/* + * Copyright (C) Sheldon Instruments, Inc. 2008 + * + * Author: Ron Madrid info@sheldoninst.com + * Adapted from ../freescale/mpc8313erdb/sdram.c + * + * (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, + */ + +#include <common.h> +#include <mpc83xx.h> +#include <spd_sdram.h> + +#include <asm/bitops.h> +#include <asm/io.h> + +#include <asm/processor.h> + +DECLARE_GLOBAL_DATA_PTR; + +static long fixed_sdram(void); + +#if defined(CONFIG_NAND_SPL) +#define puts(v) {} +void si_read_i2c(int, int, u8*); +void si_wait_i2c(void); +#endif + +#define DDRLAWAR_SIZE 0x0000003F + +phys_size_t initdram(int board_type) +{ + volatile immap_t *im = (immap_t *) CFG_IMMR; + volatile lbus83xx_t *lbc= &im->lbus; + + u32 msize = 0; + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im) + return -1; + + puts("Initializing\n"); + + /* DDR SDRAM - Main SODIMM */ + im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR; + + msize = fixed_sdram(); + + /* Local Bus setup lbcr and mrtpr */ + lbc->lbcr = CFG_LBC_LBCR; + lbc->mrtpr = CFG_LBC_MRTPR; + sync(); + + puts(" DDR RAM: "); + /* 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 *) CFG_IMMR; + u32 msizelog2, msize = 1; +#if defined(CONFIG_NAND_SPL) + u32 i; + u8 buffer[135]; + u32 lbyte = 0, count = 135; + u32 addr = 0, data = 0; + + si_read_i2c(lbyte, count, buffer); + + for (i = 18; i < count; 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]; + + *((u32 *)(CFG_IMMR + addr)) = data; + } + + sync(); + + /* enable DDR controller */ + im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN; +#endif /* (CONFIG_NAND_SPL) */ + + msizelog2 = ((im->sysconf.ddrlaw[0].ar & DDRLAWAR_SIZE) + 1); + msize <<= (msizelog2 - 20); + + return msize; +} + +#if defined(CONFIG_NAND_SPL) +void si_read_i2c(int lbyte, int count, u8 *buffer) +{ + u8 chip = 0x50; /* boot sequencer I2C */ + u8 ubyte; + u8 dummy; + u32 i; + volatile immap_t *im = (immap_t *) CFG_IMMR; + + chip <<= 1; + ubyte = (lbyte&0xff00)>>8; + lbyte &= 0xff; + + /* + * Set up controller + */ + im->i2c[0].cr = 0x00; + im->i2c[0].fdr = 0x3f; + im->i2c[0].dfsrr = 0x10; + im->i2c[0].adr = 0x00; + im->i2c[0].sr = 0x80; + im->i2c[0].dr = 0; + + while (im->i2c[0].sr & 0x20) + ; + + /* + * Writing address to device + */ + im->i2c[0].cr = 0xb0; + im->i2c[0].dr = chip; + si_wait_i2c(); + + im->i2c[0].cr = 0xb0; + im->i2c[0].dr = ubyte; + + si_wait_i2c(); + im->i2c[0].dr = lbyte; + si_wait_i2c(); + im->i2c[0].cr = 0xb4; + im->i2c[0].dr = chip + 1; + si_wait_i2c(); + im->i2c[0].cr = 0xa0; + + /* + * Dummy read + */ + dummy = 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 */ + im->i2c[0].cr = 0xa8; + if (i == (count - 1)) /* Reached last byte */ + im->i2c[0].cr = 0x88; + + /* Read byte of data */ + buffer[i] = im->i2c[0].dr; + + if (i ==(count - 1)) + break; + si_wait_i2c(); + + } + + /* + * Reset controller + */ + im->i2c[0].cr = 0x80; + im->i2c[0].sr = 0x00; + + return; +} + +void si_wait_i2c(void){ + volatile immap_t *im = (immap_t *) CFG_IMMR; + + while (!(im->i2c[0].sr & 0x02)) + ; + im->i2c[0].sr = 0; + return; +} +#endif /* CONFIG_NAND_SPL */ diff --git a/board/sheldon/simpc8313/simpc8313.c b/board/sheldon/simpc8313/simpc8313.c new file mode 100644 index 0000000..8875973 --- /dev/null +++ b/board/sheldon/simpc8313/simpc8313.c @@ -0,0 +1,136 @@ +/* + * Copyright (C) Sheldon Instruments, Inc. 2008 + * + * Author: Ron Madrid info@sheldoninst.com + * Adapted from board/freescale/mpc8313erdb/mpc8313erdb.c + * + * 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> +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#endif +#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: CFG_PCI1_MEM_BASE, + phys_start: CFG_PCI1_MEM_PHYS, + size: CFG_PCI1_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CFG_PCI1_MMIO_BASE, + phys_start: CFG_PCI1_MMIO_PHYS, + size: CFG_PCI1_MMIO_SIZE, + flags: PCI_REGION_MEM + }, + { + bus_start: CFG_PCI1_IO_BASE, + phys_start: CFG_PCI1_IO_PHYS, + size: CFG_PCI1_IO_SIZE, + flags: PCI_REGION_IO + } +}; + +void pci_init_board(void) +{ + volatile immap_t *immr = (volatile immap_t *)CFG_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 = CFG_PCI1_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; + + pci_law[1].bar = CFG_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)(CFG_IMMR + 0x4500), + CFG_NS16550_CLK / 16 / CONFIG_BAUDRATE); + puts("NAND boot... "); + init_timebase(); + initdram(0); + relocate_code(CFG_NAND_U_BOOT_RELOC + 0x10000, (gd_t *)gd, + CFG_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)(CFG_IMMR + 0x4500), '\r'); + + NS16550_putc((NS16550_t)(CFG_IMMR + 0x4500), c); +} +#endif diff --git a/doc/README.simpc8313 b/doc/README.simpc8313 new file mode 100644 index 0000000..c2bac55 --- /dev/null +++ b/doc/README.simpc8313 @@ -0,0 +1,71 @@ +Sheldon Instruments SIMPC8313 Board +----------------------------------------- + +1. Board Switches and Jumpers + + S2 is used to set CFG_RESET_SOURCE. + + To boot the image in Large page NAND flash, use these DIP + switch settings for S2: + + +----------+ ON + | * * **** | + | * * | + +----------+ + 12345678 + + To boot the image in Small page NAND flash, use these DIP + switch settings for S2: + + +----------+ ON + | *** **** | + | * | + +----------+ + 12345678 + (where the '*' indicates the position of the tab of the switch.) + +2. Memory Map + The memory map looks like this: + + 0x0000_0000 0x1fff_ffff DDR 512M + 0x8000_0000 0x8fff_ffff PCI MEM 256M + 0x9000_0000 0x9fff_ffff PCI_MMIO 256M + 0xe000_0000 0xe00f_ffff IMMR 1M + 0xe200_0000 0xe20f_ffff PCI IO 16M + 0xe280_0000 0xe280_7fff NAND FLASH (CS0) 32K + or + 0xe280_0000 0xe281_ffff NAND FLASH (CS0) 128K + 0xff00_0000 0xff00_7fff FPGA (CS1) 1M + +3. Compilation + + Assuming you're using BASH (or similar) as your shell: + + export CROSS_COMPILE=your-cross-compiler-prefix- + make distclean + make SIMPC8313_LP_config + (or make SIMPC8313_SP_config, depending on the page size + of your NAND flash) + make + +4. Downloading and Flashing Images + +4.1 Reflash U-boot Image using U-boot + + =>run update_uboot + + You may want to try + =>tftp $loadaddr $uboot + first, to make sure that the TFTP load will succeed before it + goes ahead and wipes out your current firmware. And of course, + if the new u-boot doesn't boot, you can plug the board into + your PCI slot and with the supplied driver and sample app + you can reburn a working u-boot. + +4.2 Downloading and Booting Linux Kernel + + TODO: + +5 Notes + + The console baudrate for SIMPC8313 is 115200bps. diff --git a/include/configs/SIMPC8313.h b/include/configs/SIMPC8313.h new file mode 100644 index 0000000..4c086fd --- /dev/null +++ b/include/configs/SIMPC8313.h @@ -0,0 +1,534 @@ +/* + * Copyright (C) Sheldon Instruments, Inc. 2008 + * + * 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 + */ +/* + * simpc8313 board configuration file + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +/* + * High Level Configuration Options + */ +#define CONFIG_E300 1 +#define CONFIG_MPC83XX 1 +#define CONFIG_MPC831X 1 +#define CONFIG_MPC8313 1 + +#define CONFIG_PCI +#define CONFIG_83XX_GENERIC_PCI + +#define CONFIG_MISC_INIT_R + +/* + * On-board devices + * + * TSEC1 is Marvell PHY 88E1118 + */ + +#define CFG_33MHZ + +#define CONFIG_83XX_CLKIN 33333333 /* in Hz */ + +#define CONFIG_SYS_CLK_FREQ CONFIG_83XX_CLKIN + +#define CFG_IMMR 0xE0000000 + +#if defined(CONFIG_NAND_U_BOOT) && !defined(CONFIG_NAND_SPL) +#define CONFIG_DEFAULT_IMMR CFG_IMMR +#endif + +#define CFG_MEMTEST_START 0x00001000 +#define CFG_MEMTEST_END 0x07f00000 + +#define CFG_ACR_PIPE_DEP 3 /* Arbiter pipeline depth (0-3) */ +#define CFG_ACR_RPTCNT 3 /* Arbiter repeat count (0-7) */ + +/* + * Device configurations + */ +#define CONFIG_TSEC1 + +/* + * DDR Setup + */ +#define CFG_DDR_BASE 0x00000000 /* DDR is system memory*/ +#define CFG_SDRAM_BASE CFG_DDR_BASE +#define CFG_DDR_SDRAM_BASE CFG_DDR_BASE + +#define CONFIG_VERY_BIG_RAM +#define CONFIG_MAX_MEM_MAPPED (512 << 20) + +#define CFG_DDRCDR ( DDRCDR_EN \ + | DDRCDR_PZ_NOMZ \ + | DDRCDR_NZ_NOMZ \ + | DDRCDR_M_ODR ) + /* 0x73000002 TODO ODR & DRN ? */ + +/* + * FLASH on the Local Bus + */ +#define CFG_NO_FLASH + +#define CFG_MONITOR_BASE TEXT_BASE /* start of monitor */ + +#if !defined(CONFIG_NAND_SPL) +#define CFG_RAMBOOT +#endif + +#define CFG_INIT_RAM_LOCK 1 +#define CFG_INIT_RAM_ADDR 0xFD000000 /* Initial RAM address */ +#define CFG_INIT_RAM_END 0x1000 /* End of used area in RAM*/ + +#define CFG_GBL_DATA_SIZE 0x100 /* num bytes initial data */ +#define CFG_GBL_DATA_OFFSET (CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE) +#define CFG_INIT_SP_OFFSET CFG_GBL_DATA_OFFSET + +/* CFG_MONITOR_LEN must be a multiple of CONFIG_ENV_SECT_SIZE */ +#define CFG_MONITOR_LEN (256 * 1024) /* Reserve 256 kB for Mon */ +#define CFG_MALLOC_LEN (512 * 1024) /* Reserved for malloc */ + +/* + * Local Bus LCRR and LBCR regs + */ +#define CFG_LCRR LCRR_CLKDIV_2 /* 0x00000002 */ +#define CFG_LBC_LBCR ( 0x00040000 /* TODO */ \ + | (0xFF << LBCR_BMT_SHIFT) \ + | 0xF ) /* 0x0004ff0f */ + +#define CFG_LBC_MRTPR 0x20000000 /*TODO */ /* LB refresh timer prescal, 266MHz/32 */ + +/* drivers/mtd/nand/nand.c */ +#ifdef CONFIG_NAND_SPL +#define CFG_NAND_BASE 0xFFF00000 +#else +#define CFG_NAND_BASE 0xE2800000 +#endif + +#define CFG_MAX_NAND_DEVICE 1 +#define NAND_MAX_CHIPS 1 +#define CONFIG_MTD_NAND_VERIFY_WRITE +#define CONFIG_CMD_NAND 1 +#define CONFIG_NAND_FSL_ELBC 1 + +#define CFG_NAND_U_BOOT_SIZE (512 << 10) +#define CFG_NAND_U_BOOT_DST 0x00100000 +#define CFG_NAND_U_BOOT_START 0x00100100 +#define CFG_NAND_U_BOOT_RELOC 0x00010000 + +#define CFG_NAND_BR_PRELIM ( CFG_NAND_BASE \ + | (2<<BR_DECC_SHIFT) /* Use HW ECC */ \ + | BR_PS_8 /* Port Size = 8 bit */ \ + | BR_MS_FCM /* MSEL = FCM */ \ + | BR_V ) /* valid */ + +#ifdef CONFIG_NAND_SP +#define CFG_NAND_OR_PRELIM ( 0xFFFF8000 /* length 32K */ \ + | OR_FCM_CSCT \ + | OR_FCM_CST \ + | OR_FCM_CHT \ + | OR_FCM_SCY_1 \ + | OR_FCM_TRLX \ + | OR_FCM_EHTR ) +#define CFG_LBLAWAR0_PRELIM 0x8000000E /* 32KB */ +#define CFG_NAND_PAGE_SIZE (512) /* NAND chip page size */ +#define CFG_NAND_BLOCK_SIZE (16 << 10) /* NAND chip block size */ +#define NAND_CACHE_PAGES 32 +#elif defined(CONFIG_NAND_LP) +#define CFG_NAND_OR_PRELIM ( 0xFFFC0000 /* length 256K */ \ + | OR_FCM_PGS \ + | OR_FCM_CSCT \ + | OR_FCM_CST \ + | OR_FCM_CHT \ + | OR_FCM_SCY_1 \ + | OR_FCM_TRLX \ + | OR_FCM_EHTR ) +#define CFG_LBLAWAR0_PRELIM 0x80000011 /* 256KB */ +#define CFG_NAND_PAGE_SIZE (2048) /* NAND chip page size */ +#define CFG_NAND_BLOCK_SIZE (128 << 10) /* NAND chip block size */ +#define NAND_CACHE_PAGES 64 +#else +#error Page size of NAND not defined. +#endif /* CONFIG_NAND_SP */ + +#define CFG_NAND_U_BOOT_OFFS CFG_NAND_BLOCK_SIZE + +#define CFG_BR0_PRELIM CFG_NAND_BR_PRELIM +#define CFG_OR0_PRELIM CFG_NAND_OR_PRELIM + +#define CFG_LBLAWBAR0_PRELIM CFG_NAND_BASE + +#define CFG_NAND_LBLAWBAR_PRELIM CFG_LBLAWBAR0_PRELIM +#define CFG_NAND_LBLAWAR_PRELIM CFG_LBLAWAR0_PRELIM + +/* + * JFFS2 configuration + */ +#define CONFIG_JFFS2_NAND +#define CONFIG_JFFS2_DEV "nand0" + +/* mtdparts command line support */ +#define CONFIG_JFFS2_CMDLINE +#define MTDIDS_DEFAULT "nand0=nand0" +#define MTDPARTS_DEFAULT "mtdparts=nand0:2M(u-boot),6M(kernel),-(jffs2)" + +/* pass open firmware flat tree */ +#define CONFIG_OF_LIBFDT 1 +#define CONFIG_OF_BOARD_SETUP 1 +#define CONFIG_OF_STDOUT_VIA_ALIAS 1 + +/* + * Serial Port + */ +#define CONFIG_CONS_INDEX 1 +#define CFG_NS16550 +#define CFG_NS16550_SERIAL +#define CFG_NS16550_REG_SIZE 1 + +#define CFG_BAUDRATE_TABLE \ + {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 115200} + +#define CFG_NS16550_COM1 (CFG_IMMR+0x4500) +#define CFG_NS16550_COM2 (CFG_IMMR+0x4600) + +/* Use the HUSH parser */ +#define CFG_HUSH_PARSER +#define CFG_PROMPT_HUSH_PS2 "> " + +/* I2C */ +#define CONFIG_HARD_I2C /* I2C with hardware support*/ +#define CONFIG_FSL_I2C +#define CONFIG_I2C_MULTI_BUS +#define CONFIG_I2C_CMD_TREE +#define CFG_I2C_SPEED 400000 /* I2C speed and slave address */ +#define CFG_I2C_SLAVE 0x7F +#define CFG_I2C_NOPROBES {{0,0x69}} /* Don't probe these addrs */ +#define CFG_I2C_OFFSET 0x3000 +#define CFG_I2C2_OFFSET 0x3100 + +/* + * General PCI + * Addresses are mapped 1-1. + */ +#define CFG_PCI1_MEM_BASE 0x80000000 +#define CFG_PCI1_MEM_PHYS CFG_PCI1_MEM_BASE +#define CFG_PCI1_MEM_SIZE 0x10000000 /* 256M */ +#define CFG_PCI1_MMIO_BASE 0x90000000 +#define CFG_PCI1_MMIO_PHYS CFG_PCI1_MMIO_BASE +#define CFG_PCI1_MMIO_SIZE 0x10000000 /* 256M */ +#define CFG_PCI1_IO_BASE 0x00000000 +#define CFG_PCI1_IO_PHYS 0xE2000000 +#define CFG_PCI1_IO_SIZE 0x00100000 /* 1M */ + +#define CONFIG_PCI_PNP /* do pci plug-and-play */ +#define CFG_PCI_SUBSYS_VENDORID 0x1057 /* Motorola */ + +/* + * TSEC + */ +#define CONFIG_TSEC_ENET /* TSEC ethernet support */ + +#define CONFIG_NET_MULTI +#define CONFIG_GMII /* MII PHY management */ + +#ifdef CONFIG_TSEC1 +#define CONFIG_HAS_ETH0 +#define CONFIG_TSEC1_NAME "TSEC0" +#define CFG_TSEC1_OFFSET 0x24000 +#define TSEC1_PHY_ADDR 0x1c +#define TSEC1_FLAGS TSEC_GIGABIT +#define TSEC1_PHYIDX 0 +#endif + +#ifdef CONFIG_TSEC2 +#define CONFIG_HAS_ETH1 +#define CONFIG_TSEC2_NAME "TSEC1" +#define CFG_TSEC2_OFFSET 0x25000 +#define TSEC2_PHY_ADDR 4 +#define TSEC2_FLAGS TSEC_GIGABIT +#define TSEC2_PHYIDX 0 +#endif + + +/* Options are: TSEC[0-1] */ +#define CONFIG_ETHPRIME "TSEC1" + +/* + * Configure on-board RTC + */ +#define CONFIG_RTC_DS1337 +#define CFG_I2C_RTC_ADDR 0x68 + +/* + * Environment + */ +#if defined(CONFIG_NAND_U_BOOT) + #define CONFIG_ENV_IS_IN_NAND 1 + #define CONFIG_ENV_OFFSET (768 * 1024) + #define CONFIG_ENV_SECT_SIZE CFG_NAND_BLOCK_SIZE + #define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE + #define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE + #define CONFIG_ENV_RANGE (CONFIG_ENV_SECT_SIZE * 4) + #define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_RANGE) +#elif !defined(CFG_RAMBOOT) + #define CONFIG_ENV_IS_IN_FLASH 1 + #define CONFIG_ENV_ADDR (CFG_MONITOR_BASE + CFG_MONITOR_LEN) + #define CONFIG_ENV_SECT_SIZE 0x10000 /* 64K(one sector) for env */ + #define CONFIG_ENV_SIZE 0x2000 + +/* Address and size of Redundant Environment Sector */ +#else + #define CONFIG_ENV_IS_NOWHERE 1 /* Store ENV in memory only */ + #define CONFIG_ENV_ADDR (CFG_MONITOR_BASE - 0x1000) + #define CONFIG_ENV_SIZE 0x2000 +#endif + +#define CONFIG_LOADS_ECHO 1 /* echo on for serial download */ +#define CFG_LOADS_BAUD_CHANGE 1 /* allow baudrate change */ + +/* + * BOOTP options + */ +#define CONFIG_BOOTP_BOOTFILESIZE +#define CONFIG_BOOTP_BOOTPATH +#define CONFIG_BOOTP_GATEWAY +#define CONFIG_BOOTP_HOSTNAME + + +/* + * Command line configuration. + */ +#include <config_cmd_default.h> +#undef CONFIG_CMD_IMLS +#undef CONFIG_CMD_FLASH + +#define CONFIG_CMD_PING +#define CONFIG_CMD_DHCP +#define CONFIG_CMD_I2C +#define CONFIG_CMD_MII +#define CONFIG_CMD_DATE +#define CONFIG_CMD_PCI +#define CONFIG_CMD_JFFS2 + +#if defined(CFG_RAMBOOT) && !defined(CONFIG_NAND_U_BOOT) + #undef CONFIG_CMD_ENV + #undef CONFIG_CMD_LOADS +#endif + +#define CONFIG_CMDLINE_EDITING 1 + + +/* + * Miscellaneous configurable options + */ +#define CFG_LONGHELP /* undef to save memory */ +#define CFG_LOAD_ADDR 0x2000000 /* default load address */ +#define CFG_PROMPT "=> " /* Monitor Command Prompt */ +#define CFG_CBSIZE 1024 /* Console I/O Buffer Size */ + +#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */ +#define CFG_MAXARGS 16 /* max number of command args */ +#define CFG_BARGSIZE CFG_CBSIZE /* Boot Argument Buffer Size */ +#define CFG_HZ 1000 /* decrementer freq: 1ms ticks */ + +/* + * For booting Linux, the board info and command line data + * have to be in the first 8 MB of memory, since this is + * the maximum mapped by the Linux kernel during initialization. + */ +#define CFG_BOOTMAPSZ (8 << 20) /* Initial Memory map for Linux*/ + +#define CFG_RCWH_PCIHOST 0x80000000 /* PCIHOST */ + +#define CFG_HRCW_LOW (\ + HRCWL_LCL_BUS_TO_SCB_CLK_1X1 |\ + 0x20000000 /* reserved, must be set */ |\ + HRCWL_DDR_TO_SCB_CLK_2X1 |\ + HRCWL_CSB_TO_CLKIN_4X1 |\ + HRCWL_CORE_TO_CSB_2_5X1) + +#define CFG_NS16550_CLK (CONFIG_83XX_CLKIN * 4) + +#define CFG_HRCW_HIGH_BASE (\ + HRCWH_PCI_HOST |\ + HRCWH_PCI1_ARBITER_ENABLE |\ + HRCWH_CORE_ENABLE |\ + HRCWH_BOOTSEQ_DISABLE |\ + HRCWH_SW_WATCHDOG_DISABLE |\ + HRCWH_TSEC1M_IN_RGMII |\ + HRCWH_TSEC2M_IN_RGMII |\ + HRCWH_BIG_ENDIAN |\ + HRCWH_LALE_NORMAL) + +#ifdef CONFIG_NAND_LP +#define CFG_HRCW_HIGH (CFG_HRCW_HIGH_BASE |\ + HRCWH_FROM_0XFFF00100 |\ + HRCWH_ROM_LOC_NAND_LP_8BIT |\ + HRCWH_RL_EXT_NAND) +#else +#define CFG_HRCW_HIGH (CFG_HRCW_HIGH_BASE |\ + HRCWH_FROM_0XFFF00100 |\ + HRCWH_ROM_LOC_NAND_SP_8BIT |\ + HRCWH_RL_EXT_NAND) +#endif + +/* System IO Config */ +#define CFG_SICRH (SICRH_TSOBI1 | SICRH_TSOBI2) /* RGMII */ +#define CFG_SICRL SICRL_USBDR /* Enable Internal USB Phy */ + +#define CFG_HID0_INIT 0x000000000 +#define CFG_HID0_FINAL (HID0_ENABLE_MACHINE_CHECK | \ + HID0_ENABLE_DYNAMIC_POWER_MANAGMENT) + +#define CFG_HID2 HID2_HBE + +#define CONFIG_HIGH_BATS 1 /* High BATs supported */ + +/* DDR @ 0x00000000 */ +#define CFG_IBAT0L (CFG_SDRAM_BASE | BATL_PP_10) +#define CFG_IBAT0U (CFG_SDRAM_BASE | BATU_BL_256M | BATU_VS | BATU_VP) +#define CFG_IBAT1L ((CFG_SDRAM_BASE + 0x10000000) | BATL_PP_10) +#define CFG_IBAT1U ((CFG_SDRAM_BASE + 0x10000000) | BATU_BL_256M | BATU_VS | BATU_VP) + +/* PCI @ 0x80000000 */ +#define CFG_IBAT2L (CFG_PCI1_MEM_BASE | BATL_PP_10) +#define CFG_IBAT2U (CFG_PCI1_MEM_BASE | BATU_BL_256M | BATU_VS | BATU_VP) +#define CFG_IBAT3L (CFG_PCI1_MMIO_BASE | BATL_PP_10 | BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE) +#define CFG_IBAT3U (CFG_PCI1_MMIO_BASE | BATU_BL_256M | BATU_VS | BATU_VP) + +/* PCI2 not supported on 8313 */ +#define CFG_IBAT4L (0) +#define CFG_IBAT4U (0) + +/* IMMRBAR @ 0xE0000000, PCI IO @ 0xE2000000 */ +#define CFG_IBAT5L (CFG_IMMR | BATL_PP_10 | BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE) +#define CFG_IBAT5U (CFG_IMMR | BATU_BL_256M | BATU_VS | BATU_VP) + +/* SDRAM @ 0xF0000000, stack in DCACHE 0xFDF00000 & FLASH @ 0xFE000000 */ +#define CFG_IBAT6L (0xF0000000 | BATL_PP_10) +#define CFG_IBAT6U (0xF0000000 | BATU_BL_256M | BATU_VS | BATU_VP) + +#define CFG_IBAT7L (0) +#define CFG_IBAT7U (0) + +#define CFG_DBAT0L CFG_IBAT0L +#define CFG_DBAT0U CFG_IBAT0U +#define CFG_DBAT1L CFG_IBAT1L +#define CFG_DBAT1U CFG_IBAT1U +#define CFG_DBAT2L CFG_IBAT2L +#define CFG_DBAT2U CFG_IBAT2U +#define CFG_DBAT3L CFG_IBAT3L +#define CFG_DBAT3U CFG_IBAT3U +#define CFG_DBAT4L CFG_IBAT4L +#define CFG_DBAT4U CFG_IBAT4U +#define CFG_DBAT5L CFG_IBAT5L +#define CFG_DBAT5U CFG_IBAT5U +#define CFG_DBAT6L CFG_IBAT6L +#define CFG_DBAT6U CFG_IBAT6U +#define CFG_DBAT7L CFG_IBAT7L +#define CFG_DBAT7U CFG_IBAT7U + +/* + * Internal Definitions + * + * Boot Flags + */ +#define BOOTFLAG_COLD 0x01 /* Normal Power-On: Boot from FLASH */ +#define BOOTFLAG_WARM 0x02 /* Software reboot */ + +/* + * Environment Configuration + */ +#define CONFIG_ENV_OVERWRITE + +#define CONFIG_NETDEV eth1 + +#define CONFIG_HOSTNAME simpc8313 +#define CONFIG_ROOTPATH /tftpboot/10.196.31.85 +#define CONFIG_BOOTFILE /tftpboot/uImage +#define CONFIG_UBOOTPATH u-boot-nand.bin /* U-Boot image on TFTP server */ +#define CONFIG_FDTFILE simpc8313.dtb + +#define CONFIG_LOADADDR 500000 /* default location for tftp and bootm */ +#define CONFIG_BOOTDELAY 5 /* 5 second delay */ +#define CONFIG_BAUDRATE 115200 + +#define CONFIG_BOOTCOMMAND "nand read 500000 kernel 600000;bootm 500000 - ae0000" + +#define XMK_STR(x) #x +#define MK_STR(x) XMK_STR(x) + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "netdev=" MK_STR(CONFIG_NETDEV) "\0" \ + "ethprime=TSEC1\0" \ + "uboot=" MK_STR(CONFIG_UBOOTPATH) "\0" \ + "tftpflash=tftpboot $loadaddr $uboot; " \ + "protect off " MK_STR(TEXT_BASE) " +$filesize; " \ + "erase " MK_STR(TEXT_BASE) " +$filesize; " \ + "cp.b $loadaddr " MK_STR(TEXT_BASE) " $filesize; " \ + "protect on " MK_STR(TEXT_BASE) " +$filesize; " \ + "cmp.b $loadaddr " MK_STR(TEXT_BASE) " $filesize\0" \ + "fdtaddr=400000\0" \ + "fdtfile=" MK_STR(CONFIG_FDTFILE) "\0" \ + "console=ttyS0\0" \ + "setbootargs=setenv bootargs " \ + "root=$rootdev rw console=$console,$baudrate $othbootargs\0" \ + "setipargs=setenv bootargs nfsroot=$serverip:$rootpath " \ + "ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off " \ + "root=$rootdev rw console=$console,$baudrate $othbootargs\0" \ + "load_uboot=tftp 100000 u-boot-nand.bin\0" \ + "burn_uboot=nand erase u-boot 80000; " \ + "nand write 100000 u-boot $filesize\0" \ + "update_uboot=run load_uboot;run burn_uboot\0" \ + "mtdids=nand0=nand0\0" \ + "mtdparts=mtdparts=nand0:2M(u-boot),6M(kernel),-(jffs2)\0" \ + "nfsargs=setenv bootargs root=/dev/nfs rw " \ + "nfsroot=${serverip}:${rootpath}\0" \ + "ramargs=setenv bootargs root=/dev/ram rw\0" \ + "addip=setenv bootargs ${bootargs} " \ + "ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}" \ + ":${hostname}:${netdev}:off panic=1\0" \ + "addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0" \ + "bootargs=root=/dev/mtdblock2 rootfstype=jffs2 rw " \ + "console=ttyS0,115200\0" \ + "" + +#define CONFIG_NFSBOOTCOMMAND \ + "setenv rootdev /dev/nfs;" \ + "run setbootargs;" \ + "run setipargs;" \ + "tftp $loadaddr $bootfile;" \ + "tftp $fdtaddr $fdtfile;" \ + "bootm $loadaddr - $fdtaddr" + +#define CONFIG_RAMBOOTCOMMAND \ + "setenv rootdev /dev/ram;" \ + "run setbootargs;" \ + "tftp $ramdiskaddr $ramdiskfile;" \ + "tftp $loadaddr $bootfile;" \ + "tftp $fdtaddr $fdtfile;" \ + "bootm $loadaddr $ramdiskaddr $fdtaddr" + +#undef MK_STR +#undef XMK_STR + +#endif /* __CONFIG_H */ diff --git a/nand_spl/board/sheldon/simpc8313/Makefile b/nand_spl/board/sheldon/simpc8313/Makefile new file mode 100644 index 0000000..ba79619 --- /dev/null +++ b/nand_spl/board/sheldon/simpc8313/Makefile @@ -0,0 +1,101 @@ +# +# (C) Copyright 2007 +# Stefan Roese, DENX Software Engineering, sr@denx.de. +# (C) Copyright 2008 Freescale Semiconductor +# (C) Copyright Sheldon Instruments, Inc. 2008 +# +# 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 +# + +NAND_SPL := y +TEXT_BASE := 0xfff00000 + +include $(TOPDIR)/config.mk + +LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds +LDFLAGS = -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS) +AFLAGS += -DCONFIG_NAND_SPL +CFLAGS += -DCONFIG_NAND_SPL + +SOBJS = start.o ticks.o +COBJS = nand_boot_fsl_elbc.o $(BOARD).o sdram.o ns16550.o nand_init.o time.o + +SRCS := $(addprefix $(obj),$(SOBJS:.o=.S) $(COBJS:.o=.c)) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +__OBJS := $(SOBJS) $(COBJS) +LNDIR := $(OBJTREE)/nand_spl/board/$(BOARDDIR) + +nandobj := $(OBJTREE)/nand_spl/ + +ALL = $(nandobj)u-boot-spl $(nandobj)u-boot-spl.bin $(nandobj)u-boot-spl-16k.bin + +all: $(obj).depend $(ALL) + +$(nandobj)u-boot-spl-16k.bin: $(nandobj)u-boot-spl + $(OBJCOPY) ${OBJCFLAGS} --pad-to=$(PAD_TO) -O binary $< $@ + +$(nandobj)u-boot-spl.bin: $(nandobj)u-boot-spl + $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ + +$(nandobj)u-boot-spl: $(OBJS) + cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \ + -Map $(nandobj)u-boot-spl.map \ + -o $(nandobj)u-boot-spl + +# create symbolic links for common files + +$(obj)start.S: + ln -sf $(SRCTREE)/cpu/mpc83xx/start.S $(obj)start.S + +$(obj)nand_boot_fsl_elbc.c: + ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c \ + $(obj)nand_boot_fsl_elbc.c + +$(obj)sdram.c: + ln -sf $(SRCTREE)/board/$(BOARDDIR)/sdram.c $(obj)sdram.c + +$(obj)$(BOARD).c: + ln -sf $(SRCTREE)/board/$(BOARDDIR)/$(BOARD).c $(obj)$(BOARD).c + +$(obj)ns16550.c: + ln -sf $(SRCTREE)/drivers/serial/ns16550.c $(obj)ns16550.c + +$(obj)nand_init.c: + ln -sf $(SRCTREE)/cpu/mpc83xx/nand_init.c $(obj)nand_init.c + +$(obj)time.c: + ln -sf $(SRCTREE)/lib_ppc/time.c $(obj)time.c + +$(obj)ticks.S: + ln -sf $(SRCTREE)/lib_ppc/ticks.S $(obj)ticks.S + +######################################################################### + +$(obj)%.o: $(obj)%.S + $(CC) $(AFLAGS) -c -o $@ $< + +$(obj)%.o: $(obj)%.c + $(CC) $(CFLAGS) -c -o $@ $< + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/nand_spl/board/sheldon/simpc8313/u-boot.lds b/nand_spl/board/sheldon/simpc8313/u-boot.lds new file mode 100644 index 0000000..40c4145 --- /dev/null +++ b/nand_spl/board/sheldon/simpc8313/u-boot.lds @@ -0,0 +1,52 @@ +/* + * (C) Copyright 2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright 2008 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 + */ + +OUTPUT_ARCH(powerpc) +SECTIONS +{ + . = 0xfff00000; + .text : { + *(.text*) + . = ALIGN(16); + *(.rodata*) + *(.eh_frame) + } + + . = ALIGN(8); + .data : { + *(.data*) + *(.sdata*) + _GOT2_TABLE_ = .; + *(.got2) + __got2_entries = (. - _GOT2_TABLE_) >> 2; + } + + . = ALIGN(8); + __bss_start = .; + .bss (NOLOAD) : { *(.*bss) } + _end = .; +} +ENTRY(_start) +ASSERT(_end <= 0xfff01000, "NAND bootstrap too big");