diff options
Diffstat (limited to 'board/balloon3')
| -rw-r--r-- | board/balloon3/Makefile | 49 | ||||
| -rw-r--r-- | board/balloon3/balloon3.c | 228 | ||||
| -rw-r--r-- | board/balloon3/config.mk | 1 | ||||
| -rw-r--r-- | board/balloon3/lowlevel_init.S | 36 | ||||
| -rw-r--r-- | board/balloon3/u-boot.lds | 55 |
5 files changed, 369 insertions, 0 deletions
diff --git a/board/balloon3/Makefile b/board/balloon3/Makefile new file mode 100644 index 0000000..3928e1f --- /dev/null +++ b/board/balloon3/Makefile @@ -0,0 +1,49 @@ +# +# Balloon3 Support +# +# Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com> +# +# 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 := balloon3.o +SOBJS := lowlevel_init.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +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/balloon3/balloon3.c b/board/balloon3/balloon3.c new file mode 100644 index 0000000..2d6eabe --- /dev/null +++ b/board/balloon3/balloon3.c @@ -0,0 +1,228 @@ +/* + * Balloon3 Support + * + * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com> + * + * 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/arch/hardware.h> +#include <serial.h> +#include <asm/io.h> +#include <spartan3.h> +#include <command.h> + +DECLARE_GLOBAL_DATA_PTR; + +void balloon3_init_fpga(void); + +/* + * Miscelaneous platform dependent initialisations + */ + +int board_init(void) +{ + /* arch number of vpac270 */ + gd->bd->bi_arch_number = MACH_TYPE_BALLOON3; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = 0xa0000100; + + /* Init the FPGA */ + balloon3_init_fpga(); + + return 0; +} + +struct serial_device *default_serial_console(void) +{ + return &serial_stuart_device; +} + +int dram_init(void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[1].start = PHYS_SDRAM_2; + gd->bd->bi_dram[2].start = PHYS_SDRAM_3; + + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE; + gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE; + + return 0; +} + +#ifdef CONFIG_CMD_USB +int usb_board_init(void) +{ + writel((readl(UHCHR) | UHCHR_PCPL | UHCHR_PSPL) & + ~(UHCHR_SSEP0 | UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE), + UHCHR); + + writel(readl(UHCHR) | UHCHR_FSBIR, UHCHR); + + while (readl(UHCHR) & UHCHR_FSBIR) + ; + + writel(readl(UHCHR) & ~UHCHR_SSE, UHCHR); + writel((UHCHIE_UPRIE | UHCHIE_RWIE), UHCHIE); + + /* Clear any OTG Pin Hold */ + if (readl(PSSR) & PSSR_OTGPH) + writel(readl(PSSR) | PSSR_OTGPH, PSSR); + + writel(readl(UHCRHDA) & ~(0x200), UHCRHDA); + writel(readl(UHCRHDA) | 0x100, UHCRHDA); + + /* Set port power control mask bits, only 3 ports. */ + writel(readl(UHCRHDB) | (0x7<<17), UHCRHDB); + + /* enable port 2 */ + writel(readl(UP2OCR) | UP2OCR_HXOE | UP2OCR_HXS | + UP2OCR_DMPDE | UP2OCR_DPPDE, UP2OCR); + + return 0; +} + +void usb_board_init_fail(void) +{ + return; +} + +void usb_board_stop(void) +{ + writel(readl(UHCHR) | UHCHR_FHR, UHCHR); + udelay(11); + writel(readl(UHCHR) & ~UHCHR_FHR, UHCHR); + + writel(readl(UHCCOMS) | 1, UHCCOMS); + udelay(10); + + writel(readl(CKEN) & ~CKEN10_USBHOST, CKEN); + + return; +} +#endif + +#if defined(CONFIG_FPGA) +/* Toggle GPIO103 and GPIO104 -- PROGB and RDnWR */ +int fpga_pgm_fn(int nassert, int nflush, int cookie) +{ + if (nassert) + writel(0x80, GPCR3); + else + writel(0x80, GPSR3); + if (nflush) + writel(0x100, GPCR3); + else + writel(0x100, GPSR3); + return nassert; +} + +/* Check GPIO83 -- INITB */ +int fpga_init_fn(int cookie) +{ + return !(readl(GPLR2) & 0x80000); +} + +/* Check GPIO84 -- BUSY */ +int fpga_busy_fn(int cookie) +{ + return !(readl(GPLR2) & 0x100000); +} + +/* Check GPIO111 -- DONE */ +int fpga_done_fn(int cookie) +{ + return readl(GPLR3) & 0x8000; +} + +/* Configure GPIO104 as GPIO and deassert it */ +int fpga_pre_config_fn(int cookie) +{ + writel(readl(GAFR3_L) & ~0x30000, GAFR3_L); + writel(0x100, GPCR3); + return 0; +} + +/* Configure GPIO104 as nSKTSEL */ +int fpga_post_config_fn(int cookie) +{ + writel(readl(GAFR3_L) | 0x10000, GAFR3_L); + return 0; +} + +/* Toggle RDnWR */ +int fpga_wr_fn(int nassert_write, int flush, int cookie) +{ + udelay(1000); + + if (nassert_write) + writel(0x100, GPCR3); + else + writel(0x100, GPSR3); + + return nassert_write; +} + +/* Write program to the FPGA */ +int fpga_wdata_fn(uchar data, int flush, int cookie) +{ + writeb(data, 0x10f00000); + return 0; +} + +/* Toggle Clock pin -- NO-OP */ +int fpga_clk_fn(int assert_clk, int flush, int cookie) +{ + return assert_clk; +} + +/* Toggle ChipSelect pin -- NO-OP */ +int fpga_cs_fn(int assert_clk, int flush, int cookie) +{ + return assert_clk; +} + +Xilinx_Spartan3_Slave_Parallel_fns balloon3_fpga_fns = { + fpga_pre_config_fn, + fpga_pgm_fn, + fpga_init_fn, + NULL, /* err */ + fpga_done_fn, + fpga_clk_fn, + fpga_cs_fn, + fpga_wr_fn, + NULL, /* rdata */ + fpga_wdata_fn, + fpga_busy_fn, + NULL, /* abort */ + fpga_post_config_fn, +}; + +Xilinx_desc fpga = XILINX_XC3S1000_DESC(slave_parallel, + (void *)&balloon3_fpga_fns, 0); + +/* Initialize the FPGA */ +void balloon3_init_fpga(void) +{ + fpga_init(); + fpga_add(fpga_xilinx, &fpga); +} +#else +void balloon3_init_fpga(void) {} +#endif /* CONFIG_FPGA */ diff --git a/board/balloon3/config.mk b/board/balloon3/config.mk new file mode 100644 index 0000000..1d650ac --- /dev/null +++ b/board/balloon3/config.mk @@ -0,0 +1 @@ +TEXT_BASE = 0xa1000000 diff --git a/board/balloon3/lowlevel_init.S b/board/balloon3/lowlevel_init.S new file mode 100644 index 0000000..d7b5be6 --- /dev/null +++ b/board/balloon3/lowlevel_init.S @@ -0,0 +1,36 @@ +/* + * Balloon3 Lowlevel Hardware Initialization + * + * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com> + * + * 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 <version.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/macro.h> + +.globl lowlevel_init +lowlevel_init: + pxa_gpio_setup + pxa_wait_ticks 0x8000 + pxa_mem_setup + pxa_wakeup + pxa_intr_setup + pxa_clock_setup + + mov pc, lr diff --git a/board/balloon3/u-boot.lds b/board/balloon3/u-boot.lds new file mode 100644 index 0000000..58c371d --- /dev/null +++ b/board/balloon3/u-boot.lds @@ -0,0 +1,55 @@ +/* + * (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_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + cpu/pxa/start.o (.text) + *(.text) + } + + . = ALIGN(4); + .rodata : { *(.rodata) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .got : { *(.got) } + + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + _end = .; +} |