Create initial contents of the board/da8xx/da8xx-evm directory:
Low level board initialisation. Board level initilisation. Linker control.
Signed-off-by: Nick Thompson nick.thompson@gefanuc.com --- Applies to u-boot-ti
board/da8xx/da8xx-evm/Makefile | 52 ++++++ board/da8xx/da8xx-evm/board_init.S | 29 +++ board/da8xx/da8xx-evm/config.mk | 30 ++++ board/da8xx/da8xx-evm/dv_board.c | 330 ++++++++++++++++++++++++++++++++++++ board/da8xx/da8xx-evm/u-boot.lds | 52 ++++++ 5 files changed, 493 insertions(+), 0 deletions(-)
diff --git a/board/da8xx/da8xx-evm/Makefile b/board/da8xx/da8xx-evm/Makefile new file mode 100644 index 0000000..fa00138 --- /dev/null +++ b/board/da8xx/da8xx-evm/Makefile @@ -0,0 +1,52 @@ +# +# (C) Copyright 2000, 2001, 2002 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net +# +# 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 := dv_board.o +SOBJS := board_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 *~ .depend + +######################################################################### +# This is for $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/da8xx/da8xx-evm/board_init.S b/board/da8xx/da8xx-evm/board_init.S new file mode 100644 index 0000000..22d8adc --- /dev/null +++ b/board/da8xx/da8xx-evm/board_init.S @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net + * + * Board-specific low level initialization code. Called at the very end + * of cpu/arm926ejs/davinci/lowlevel_init.S. Just returns if there is no + * initialization required. + * + * 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> + +.globl dv_board_init +dv_board_init: + + mov pc, lr diff --git a/board/da8xx/da8xx-evm/config.mk b/board/da8xx/da8xx-evm/config.mk new file mode 100644 index 0000000..56de37a --- /dev/null +++ b/board/da8xx/da8xx-evm/config.mk @@ -0,0 +1,30 @@ +# +# (C) Copyright 2002 +# Gary Jennejohn, DENX Software Engineering, gj@denx.de +# David Mueller, ELSOFT AG, d.mueller@elsoft.ch +# +# (C) Copyright 2003 +# Texas Instruments, <www.ti.com> +# Swaminathan swami.iyer@ti.com +# +# Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net +# +# (C) Copyright 2008 +# Sekhar Nori, Texas Instruments, Inc. nsekhar@ti.com +# +# Texas Instruments DA8xx EVM board (ARM925EJS) cpu +# see http://www.ti.com/ for more information on Texas Instruments +# +# DA8xx EVM has 1 bank of 64 MB SDRAM (2 16Meg x16 chips). +# Physical Address: +# C000'0000 to C400'0000 +# +# Linux-Kernel is expected to be at C000'8000, entry C000'8000 +# (mem base + reserved) +# +# we load ourself to C108 '0000 +# +# + +#Provide at least 16MB spacing between us and the Linux Kernel image +TEXT_BASE = 0xC1080000 diff --git a/board/da8xx/da8xx-evm/dv_board.c b/board/da8xx/da8xx-evm/dv_board.c new file mode 100644 index 0000000..b551bc5 --- /dev/null +++ b/board/da8xx/da8xx-evm/dv_board.c @@ -0,0 +1,330 @@ +/* + * Copyright (C) 2009 Nick Thompson, GE Fanuc, Ltd. nick.thompson@gefanuc.com + * + * Use the board_eth_init hook to initialise the ethernet in the + * correct order. (Has to wait until after call to miiphy_init().) + * + * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. nsekhar@ti.com + * + * Modified for DA8xx EVM. + * + * Copyright (C) 2007 Sergey Kubushyn ksi@koi8.net + * + * Parts are shamelessly stolen from various TI sources, original copyright + * follows: + * ----------------------------------------------------------------- + * + * Copyright (C) 2004 Texas Instruments. + * + * ---------------------------------------------------------------------------- + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * ---------------------------------------------------------------------------- + */ + +#include <common.h> +#include <i2c.h> +#include <net.h> +#include <asm/arch/hardware.h> +#include <asm/arch/emac_defs.h> +#include <asm/io.h> + +#define MACH_TYPE_DA8XX_EVM 1781 + +DECLARE_GLOBAL_DATA_PTR; + +/* Works on Always On power domain only (no PD argument) */ +void lpsc_on(unsigned int id) +{ + dv_reg_p mdstat, mdctl, ptstat, ptcmd; + + if (id >= 64) + return; + + if(id < 32) { + mdstat = REG_P(PSC0_MDSTAT + (id * 4)); + mdctl = REG_P(PSC0_MDCTL + (id * 4)); + ptstat = REG_P(PSC0_PTSTAT); + ptcmd = REG_P(PSC0_PTCMD); + } else { + id -= 32; + mdstat = REG_P(PSC1_MDSTAT + (id * 4)); + mdctl = REG_P(PSC1_MDCTL + (id * 4)); + ptstat = REG_P(PSC1_PTSTAT); + ptcmd = REG_P(PSC1_PTCMD); + } + + while (*ptstat & 0x01) {;} + + if ((*mdstat & 0x1f) == 0x03) + return; /* Already on and enabled */ + + *mdctl |= 0x03; + + /* Special treatment for some modules as for sprue14 p.7.4.2 */ + /* TBD: Confirm if such cases exist for Primus */ + if (0) + *mdctl |= 0x200; + + *ptcmd = 0x01; + + while (*ptstat & 0x01) {;} + while ((*mdstat & 0x1f) != 0x03) {;} /* Probably an overkill... */ +} + +int board_init(void) +{ + + dv_reg_p intc; + + /*-------------------------------------------------------* + * Mask all IRQs by clearing the global enable and setting + * the enable clear for all the 90 interrupts. This code is + * also included in low level init. Including it here in case + * low level init is skipped. Not removing it from low level + * init in case some of the low level init code generates + * interrupts... Not expected... but you never know... + *-------------------------------------------------------*/ + +#ifndef CONFIG_USE_IRQ + intc = REG_P(INTC_GLB_EN); + intc[0] = 0; + + intc = REG_P(INTC_HINT_EN); + intc[0] = 0; + intc[1] = 0; + intc[2] = 0; + + intc = REG_P(INTC_EN_CLR0); + intc[0] = 0xFFFFFFFF; + intc[1] = 0xFFFFFFFF; + intc[2] = 0xFFFFFFFF; +#endif + + /* arch number of the board */ + gd->bd->bi_arch_number = MACH_TYPE_DA8XX_EVM; + + /* address of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + + /* Power on required peripherals + * ARM does not have acess by default to PSC0 and PSC1 + * assuming here that the DSP bootloader has set the IOPU + * such that PSC access is available to ARM + */ + lpsc_on(DAVINCI_LPSC_AEMIF); /* NAND, NOR */ + lpsc_on(DAVINCI_LPSC_SPI0); /* Serial Flash */ + lpsc_on(DAVINCI_LPSC_EMAC); /* image download */ + lpsc_on(DAVINCI_LPSC_UART2); /* console */ + lpsc_on(DAVINCI_LPSC_GPIO); + + /* Pin Muxing support */ + + /* setup the SUSPSRC for ARM to control emulation suspend */ + REG(SUSPSRC) &= ~( (1 << 27) /* Timer0 */ + | (1 << 21) /* SPI0 */ + | (1 << 20) /* UART2 */ + | (1 << 5) /* EMAC */ + | (1 << 16) /* I2C0 */ + ); + +#ifdef CONFIG_USE_PINMUX + +#ifdef CONFIG_SPI_FLASH + /* SPI0 */ + REG(PINMUX7) &= 0x00000FFF; + REG(PINMUX7) |= 0x11111000; +#endif + +#ifdef CONFIG_DRIVER_DA8XX_EMAC + /* RMII clock is sourced externally */ + REG(PINMUX9) &= 0xFF0FFFFF; + REG(PINMUX10) &= 0x0000000F; + REG(PINMUX10) |= 0x22222220; + REG(PINMUX11) &= 0xFFFFFF00; + REG(PINMUX11) |= 0x00000022; +#endif + + /* Async EMIF */ +#if defined(CONFIG_USE_NAND) || defined(CONFIG_USE_NOR) + REG(PINMUX13) &= 0x00FFFFFF; + REG(PINMUX13) |= 0x11000000; + REG(PINMUX14) = 0x11111111; + REG(PINMUX15) = 0x11111111; + REG(PINMUX16) = 0x11111111; + REG(PINMUX17) = 0x11111111; + REG(PINMUX18) = 0x11111111; + REG(PINMUX19) &= 0xFFFFFFF0; + REG(PINMUX19) |= 0x1; +#endif + + /* UART Muxing and enabling */ + REG(PINMUX8) &= 0x0FFFFFFF; + REG(PINMUX8) |= 0x20000000; + + REG(PINMUX9) &= 0xFFFFFFF0; + REG(PINMUX9) |= 0x00000002; + + /* I2C muxing */ + REG(PINMUX8) &= 0xFFF00FFF; + REG(PINMUX8) |= 0x00022000; + +#endif + + REG(DAVINCI_UART2_BASE + 0x30) = 0xE001; + + + return(0); +} + +int misc_init_r (void) +{ + printf ("ARM Clock : %d Hz\n", clk_get(DAVINCI_ARM_CLKID)); + + return(0); +} + +/* TODO: find a header file to put these in */ +extern void da8xx_eth_set_mac_addr (const u_int8_t *addr); +extern int da8xx_eth_hw_init(void); +/* + * Initializes on-board ethernet controllers. + */ +int board_eth_init(bd_t *bis) +{ +#ifdef CONFIG_DRIVER_DA8XX_EMAC + u_int8_t tmp[20], buf[10]; + int i; + + /* Set Ethernet MAC address from EEPROM */ + if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0x7f00, CONFIG_SYS_I2C_EEPROM_ADDR_LEN, buf, 6)) { + printf("\nEEPROM @ 0x%02x read FAILED!!!\n", CONFIG_SYS_I2C_EEPROM_ADDR); + } else { + tmp[0] = 0xff; + for (i = 0; i < 6; i++) + tmp[0] &= buf[i]; + + if ((tmp[0] != 0xff) && (getenv("ethaddr") == NULL)) { + sprintf((char *)&tmp[0], "%02x:%02x:%02x:%02x:%02x:%02x", + buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]); + setenv("ethaddr", (char *)&tmp[0]); + } + } + + tmp[0] = 0x01; + tmp[1] = 0x23; + if(i2c_write(0x5f, 0, 0, tmp, 2)) { + printf("Ethernet switch start failed!\n"); + } + + if (getenv ("ethaddr")) { + uchar enetaddr[6]; + eth_getenv_enetaddr("ethaddr", enetaddr); + da8xx_eth_set_mac_addr(enetaddr); + } + + if (!da8xx_eth_hw_init()) { + printf("Error: Ethernet init failed!\n"); + } +#endif + + return 0; +} + +int dram_init(void) +{ + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; + + return(0); +} + +#if defined(CONFIG_USE_NOR) +static u8 nor_read8(void *addr) +{ + u32 temp = (u32) addr; + + temp &= 0x00FFFFFF; + temp >>= 13; + temp |= 0x62000000; + *(unsigned char*) temp = 0; + + return __raw_readb(addr); +} + +static u16 nor_read16(void *addr) +{ + u32 temp = (u32) addr; + + temp &= 0x00FFFFFF; + temp >>= 13; + temp |= 0x62000000; + *(unsigned char*) temp = 0; + + return __raw_readw(addr); +} + +static u32 nor_read32(void *addr) +{ + u32 temp = (u32) addr; + + temp &= 0x00FFFFFF; + temp >>= 13; + temp |= 0x62000000; + *(unsigned char*) temp = 0; + + return __raw_readl(addr); +} + +static void nor_write8(u8 value, void *addr) +{ + u32 temp = (u32) addr; + temp &= 0x00FFFFFF; + temp >>= 13; + temp |= 0x62000000; + *(unsigned char*) temp = 0; + __raw_writeb(value, addr); +} + +static void nor_write16(u8 value, void *addr) +{ + u32 temp = (u32) addr; + temp &= 0x00FFFFFF; + temp >>= 13; + temp |= 0x62000000; + *(unsigned char*) temp = 0; + __raw_writew(value, addr); +} + +static void nor_write32(u8 value, void *addr) +{ + u32 temp = (u32) addr; + temp &= 0x00FFFFFF; + temp >>= 13; + temp |= 0x62000000; + *(unsigned char*) temp = 0; + __raw_writel(value, addr); +} + +void board_flash_set_access(ulong bank_base, int banknum, flash_info_t* info) +{ + info->read8 = nor_read8; + info->read16 = nor_read16; + info->read32 = nor_read32; + + info->write8 = nor_write8; + info->write16 = nor_write16; + info->write32 = nor_write32; +} +#endif diff --git a/board/da8xx/da8xx-evm/u-boot.lds b/board/da8xx/da8xx-evm/u-boot.lds new file mode 100644 index 0000000..a4fcd1a --- /dev/null +++ b/board/da8xx/da8xx-evm/u-boot.lds @@ -0,0 +1,52 @@ +/* + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, gj@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/arm926ejs/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 (NOLOAD) : { *(.bss) } + _end = .; +}