[U-Boot] [PATCH 3/5] add TI da8xx support: new board directory for spectrum digital EVM
Thompson, Nick (GE EntSol, Intelligent Platforms)
Nick.Thompson at gefanuc.com
Fri Oct 16 11:23:19 CEST 2009
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 at 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 at denx.de.
+#
+# Copyright (C) 2007 Sergey Kubushyn <ksi at 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 at 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 at denx.de>
+# David Mueller, ELSOFT AG, <d.mueller at elsoft.ch>
+#
+# (C) Copyright 2003
+# Texas Instruments, <www.ti.com>
+# Swaminathan <swami.iyer at ti.com>
+#
+# Copyright (C) 2007 Sergey Kubushyn <ksi at koi8.net>
+#
+# (C) Copyright 2008
+# Sekhar Nori, Texas Instruments, Inc. <nsekhar at 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 at 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 at ti.com>
+ *
+ * Modified for DA8xx EVM.
+ *
+ * Copyright (C) 2007 Sergey Kubushyn <ksi at 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 at 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 = .;
+}
More information about the U-Boot
mailing list