[U-Boot] [PATCH 3/3 V4] Add board support for hawkboard
Sughosh Ganu
urwithsughosh at gmail.com
Thu Oct 28 21:31:12 CEST 2010
Signed-off-by: Sughosh Ganu <urwithsughosh at gmail.com>
---
Changes since V3
* Added README.hawkboard
* Moved setting of select_chip to nand_boot function
* Removed the superfluous entry in board/davinci/da8xxevm/Makefile
added earlier.
MAINTAINERS | 5 +
arch/arm/include/asm/arch-davinci/da8xx_common.h | 3 +
arch/arm/include/asm/arch-davinci/hardware.h | 5 +-
board/davinci/common/Makefile | 2 +-
board/davinci/common/davinci_pinmux.c | 105 +++++++++++
board/davinci/common/misc.c | 75 --------
board/davinci/da8xxevm/Makefile | 1 +
board/davinci/da8xxevm/hawkboard.c | 69 ++++++++
board/davinci/da8xxevm/hawkboard_nand_spl.c | 164 +++++++++++++++++
boards.cfg | 3 +
doc/README.hawkboard | 93 ++++++++++
include/configs/hawkboard.h | 204 ++++++++++++++++++++++
nand_spl/board/davinci/da8xxevm/Makefile | 141 +++++++++++++++
nand_spl/board/davinci/da8xxevm/u-boot.lds | 75 ++++++++
nand_spl/nand_boot.c | 1 +
15 files changed, 869 insertions(+), 77 deletions(-)
create mode 100644 board/davinci/common/davinci_pinmux.c
create mode 100644 board/davinci/da8xxevm/hawkboard.c
create mode 100644 board/davinci/da8xxevm/hawkboard_nand_spl.c
create mode 100644 doc/README.hawkboard
create mode 100644 include/configs/hawkboard.h
create mode 100644 nand_spl/board/davinci/da8xxevm/Makefile
create mode 100644 nand_spl/board/davinci/da8xxevm/u-boot.lds
diff --git a/MAINTAINERS b/MAINTAINERS
index 9258cb1..2a7d23d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -851,6 +851,11 @@ Alex Z
lart SA1100
dnp1110 SA1110
+Syed Mohammed Khasim <sm.khasim at gmail.com>
+Sughosh Ganu <urwithsughosh at gmail.com>
+
+ hawkboard ARM926EJS (OMAP-L138)
+
-------------------------------------------------------------------------
Unknown / orphaned boards:
diff --git a/arch/arm/include/asm/arch-davinci/da8xx_common.h b/arch/arm/include/asm/arch-davinci/da8xx_common.h
index 7ae63a6..bc3092d 100644
--- a/arch/arm/include/asm/arch-davinci/da8xx_common.h
+++ b/arch/arm/include/asm/arch-davinci/da8xx_common.h
@@ -19,6 +19,9 @@
#ifndef __COMMON_H
#define __COMMON_H
+#define HAWKBOARD_KICK0_UNLOCK 0x83e70b13
+#define HAWKBOARD_KICK1_UNLOCK 0x95a4f1e0
+
struct lpsc_resource {
const int lpsc_no;
};
diff --git a/arch/arm/include/asm/arch-davinci/hardware.h b/arch/arm/include/asm/arch-davinci/hardware.h
index 3520cf8..d006ac1 100644
--- a/arch/arm/include/asm/arch-davinci/hardware.h
+++ b/arch/arm/include/asm/arch-davinci/hardware.h
@@ -379,7 +379,10 @@ int clk_get(enum davinci_clk_ids id);
/* Boot config */
struct davinci_syscfg_regs {
dv_reg revid;
- dv_reg rsvd[71];
+ dv_reg rsvd[13];
+ dv_reg kick0;
+ dv_reg kick1;
+ dv_reg rsvd1[56];
dv_reg pinmux[20];
dv_reg suspsrc;
dv_reg chipsig;
diff --git a/board/davinci/common/Makefile b/board/davinci/common/Makefile
index 8d9ea00..dd022f6 100644
--- a/board/davinci/common/Makefile
+++ b/board/davinci/common/Makefile
@@ -29,7 +29,7 @@ endif
LIB = $(obj)lib$(VENDOR).a
-COBJS := misc.o
+COBJS := misc.o davinci_pinmux.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/davinci/common/davinci_pinmux.c b/board/davinci/common/davinci_pinmux.c
new file mode 100644
index 0000000..ce58f71
--- /dev/null
+++ b/board/davinci/common/davinci_pinmux.c
@@ -0,0 +1,105 @@
+/*
+ * DaVinci pinmux functions.
+ *
+ * Copyright (C) 2009 Nick Thompson, GE Fanuc Ltd, <nick.thompson at gefanuc.com>
+ * Copyright (C) 2007 Sergey Kubushyn <ksi at koi8.net>
+ * Copyright (C) 2008 Lyrtech <www.lyrtech.com>
+ * Copyright (C) 2004 Texas Instruments.
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+#include <asm/arch/davinci_misc.h>
+
+/*
+ * Change the setting of a pin multiplexer field.
+ *
+ * Takes an array of pinmux settings similar to:
+ *
+ * struct pinmux_config uart_pins[] = {
+ * { &davinci_syscfg_regs->pinmux[8], 2, 7 },
+ * { &davinci_syscfg_regs->pinmux[9], 2, 0 }
+ * };
+ *
+ * Stepping through the array, each pinmux[n] register has the given value
+ * set in the pin mux field specified.
+ *
+ * The number of pins in the array must be passed (ARRAY_SIZE can provide
+ * this value conveniently).
+ *
+ * Returns 0 if all field numbers and values are in the correct range,
+ * else returns -1.
+ */
+int davinci_configure_pin_mux(const struct pinmux_config *pins,
+ const int n_pins)
+{
+ int i;
+
+ /* check for invalid pinmux values */
+ for (i = 0; i < n_pins; i++) {
+ if (pins[i].field >= PIN_MUX_NUM_FIELDS ||
+ (pins[i].value & ~PIN_MUX_FIELD_MASK) != 0)
+ return -1;
+ }
+
+ /* configure the pinmuxes */
+ for (i = 0; i < n_pins; i++) {
+ const int offset = pins[i].field * PIN_MUX_FIELD_SIZE;
+ const unsigned int value = pins[i].value << offset;
+ const unsigned int mask = PIN_MUX_FIELD_MASK << offset;
+ const dv_reg *mux = pins[i].mux;
+
+ writel(value | (readl(mux) & (~mask)), mux);
+ }
+
+ return 0;
+}
+
+/*
+ * Configure multiple pinmux resources.
+ *
+ * Takes an pinmux_resource array of pinmux_config and pin counts:
+ *
+ * const struct pinmux_resource pinmuxes[] = {
+ * PINMUX_ITEM(uart_pins),
+ * PINMUX_ITEM(i2c_pins),
+ * };
+ *
+ * The number of items in the array must be passed (ARRAY_SIZE can provide
+ * this value conveniently).
+ *
+ * Each item entry is configured in the defined order. If configuration
+ * of any item fails, -1 is returned and none of the following items are
+ * configured. On success, 0 is returned.
+ */
+int davinci_configure_pin_mux_items(const struct pinmux_resource *item,
+ const int n_items)
+{
+ int i;
+
+ for (i = 0; i < n_items; i++) {
+ if (davinci_configure_pin_mux(item[i].pins,
+ item[i].n_pins) != 0)
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/board/davinci/common/misc.c b/board/davinci/common/misc.c
index 71e7822..e97e61c 100644
--- a/board/davinci/common/misc.c
+++ b/board/davinci/common/misc.c
@@ -105,78 +105,3 @@ void davinci_sync_env_enetaddr(uint8_t *rom_enetaddr)
}
#endif /* DAVINCI_EMAC */
-
-/*
- * Change the setting of a pin multiplexer field.
- *
- * Takes an array of pinmux settings similar to:
- *
- * struct pinmux_config uart_pins[] = {
- * { &davinci_syscfg_regs->pinmux[8], 2, 7 },
- * { &davinci_syscfg_regs->pinmux[9], 2, 0 }
- * };
- *
- * Stepping through the array, each pinmux[n] register has the given value
- * set in the pin mux field specified.
- *
- * The number of pins in the array must be passed (ARRAY_SIZE can provide
- * this value conveniently).
- *
- * Returns 0 if all field numbers and values are in the correct range,
- * else returns -1.
- */
-int davinci_configure_pin_mux(const struct pinmux_config *pins,
- const int n_pins)
-{
- int i;
-
- /* check for invalid pinmux values */
- for (i = 0; i < n_pins; i++) {
- if (pins[i].field >= PIN_MUX_NUM_FIELDS ||
- (pins[i].value & ~PIN_MUX_FIELD_MASK) != 0)
- return -1;
- }
-
- /* configure the pinmuxes */
- for (i = 0; i < n_pins; i++) {
- const int offset = pins[i].field * PIN_MUX_FIELD_SIZE;
- const unsigned int value = pins[i].value << offset;
- const unsigned int mask = PIN_MUX_FIELD_MASK << offset;
- const dv_reg *mux = pins[i].mux;
-
- writel(value | (readl(mux) & (~mask)), mux);
- }
-
- return 0;
-}
-
-/*
- * Configure multiple pinmux resources.
- *
- * Takes an pinmux_resource array of pinmux_config and pin counts:
- *
- * const struct pinmux_resource pinmuxes[] = {
- * PINMUX_ITEM(uart_pins),
- * PINMUX_ITEM(i2c_pins),
- * };
- *
- * The number of items in the array must be passed (ARRAY_SIZE can provide
- * this value conveniently).
- *
- * Each item entry is configured in the defined order. If configuration
- * of any item fails, -1 is returned and none of the following items are
- * configured. On success, 0 is returned.
- */
-int davinci_configure_pin_mux_items(const struct pinmux_resource *item,
- const int n_items)
-{
- int i;
-
- for (i = 0; i < n_items; i++) {
- if (davinci_configure_pin_mux(item[i].pins,
- item[i].n_pins) != 0)
- return -1;
- }
-
- return 0;
-}
diff --git a/board/davinci/da8xxevm/Makefile b/board/davinci/da8xxevm/Makefile
index 17cbe86..1a67351 100644
--- a/board/davinci/da8xxevm/Makefile
+++ b/board/davinci/da8xxevm/Makefile
@@ -30,6 +30,7 @@ LIB = $(obj)lib$(BOARD).a
COBJS-y += common.o
COBJS-$(CONFIG_MACH_DAVINCI_DA830_EVM) += da830evm.o
COBJS-$(CONFIG_MACH_DAVINCI_DA850_EVM) += da850evm.o
+COBJS-$(CONFIG_MACH_DAVINCI_HAWK) += hawkboard.o
COBJS := $(COBJS-y)
diff --git a/board/davinci/da8xxevm/hawkboard.c b/board/davinci/da8xxevm/hawkboard.c
new file mode 100644
index 0000000..b672c9d
--- /dev/null
+++ b/board/davinci/da8xxevm/hawkboard.c
@@ -0,0 +1,69 @@
+/*
+ * Modified for Hawkboard - Syed Mohammed Khasim <khasim at beagleboard.org>
+ *
+ * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar at ti.com>
+ * Copyright (C) 2007 Sergey Kubushyn <ksi at koi8.net>
+ * 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 <asm/errno.h>
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+#include <asm/arch/davinci_misc.h>
+#include <ns16550.h>
+#include <asm/arch/da8xx_common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+ /* arch number of the board */
+ gd->bd->bi_arch_number = MACH_TYPE_OMAPL138_HAWKBOARD;
+
+ /* address of boot parameters */
+ gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
+
+ return 0;
+}
+
+int board_early_init_f(void)
+{
+ /*
+ * Kick Registers need to be set to allow access to Pin Mux registers
+ */
+ writel(HAWKBOARD_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
+ writel(HAWKBOARD_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
+
+ /* set cfgchip3 to select mii */
+ writel(readl(&davinci_syscfg_regs->cfgchip3) &
+ ~(1 << 8), &davinci_syscfg_regs->cfgchip3);
+
+ return 0;
+}
+
+int misc_init_r(void)
+{
+ char buf[32];
+
+ printf("ARM Clock : %s MHz\n",
+ strmhz(buf, clk_get(DAVINCI_ARM_CLKID)));
+
+ return 0;
+}
diff --git a/board/davinci/da8xxevm/hawkboard_nand_spl.c b/board/davinci/da8xxevm/hawkboard_nand_spl.c
new file mode 100644
index 0000000..b1f6b44
--- /dev/null
+++ b/board/davinci/da8xxevm/hawkboard_nand_spl.c
@@ -0,0 +1,164 @@
+/*
+ * Modified for Hawkboard - Syed Mohammed Khasim <khasim at beagleboard.org>
+ *
+ * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc. <nsekhar at ti.com>
+ * Copyright (C) 2007 Sergey Kubushyn <ksi at koi8.net>
+ * 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 <asm/errno.h>
+#include <asm/arch/hardware.h>
+#include <asm/io.h>
+#include <asm/arch/davinci_misc.h>
+#include <ns16550.h>
+#include <asm/arch/da8xx_common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define pinmux(x) (&davinci_syscfg_regs->pinmux[x])
+
+static const struct pinmux_config mii_pins[] = {
+ { pinmux(2), 8, 1 },
+ { pinmux(2), 8, 2 },
+ { pinmux(2), 8, 3 },
+ { pinmux(2), 8, 4 },
+ { pinmux(2), 8, 5 },
+ { pinmux(2), 8, 6 },
+ { pinmux(2), 8, 7 }
+};
+
+static const struct pinmux_config mdio_pins[] = {
+ { pinmux(4), 8, 0 },
+ { pinmux(4), 8, 1 }
+};
+
+static const struct pinmux_config nand_pins[] = {
+ { pinmux(7), 1, 1 },
+ { pinmux(7), 1, 2 },
+ { pinmux(7), 1, 4 },
+ { pinmux(7), 1, 5 },
+ { pinmux(9), 1, 0 },
+ { pinmux(9), 1, 1 },
+ { pinmux(9), 1, 2 },
+ { pinmux(9), 1, 3 },
+ { pinmux(9), 1, 4 },
+ { pinmux(9), 1, 5 },
+ { pinmux(9), 1, 6 },
+ { pinmux(9), 1, 7 },
+ { pinmux(12), 1, 5 },
+ { pinmux(12), 1, 6 }
+};
+
+static const struct pinmux_config uart2_pins[] = {
+ { pinmux(0), 4, 6 },
+ { pinmux(0), 4, 7 },
+ { pinmux(4), 2, 4 },
+ { pinmux(4), 2, 5 }
+};
+
+static const struct pinmux_config i2c_pins[] = {
+ { pinmux(4), 2, 4 },
+ { pinmux(4), 2, 5 }
+};
+
+static const struct pinmux_resource pinmuxes[] = {
+ PINMUX_ITEM(mii_pins),
+ PINMUX_ITEM(mdio_pins),
+ PINMUX_ITEM(i2c_pins),
+ PINMUX_ITEM(nand_pins),
+ PINMUX_ITEM(uart2_pins),
+};
+
+static const struct lpsc_resource lpsc[] = {
+ { DAVINCI_LPSC_AEMIF }, /* NAND, NOR */
+ { DAVINCI_LPSC_SPI1 }, /* Serial Flash */
+ { DAVINCI_LPSC_EMAC }, /* image download */
+ { DAVINCI_LPSC_UART2 }, /* console */
+ { DAVINCI_LPSC_GPIO },
+};
+
+void board_init_f(ulong bootflag)
+{
+ /*
+ * Kick Registers need to be set to allow access to Pin Mux registers
+ */
+ writel(HAWKBOARD_KICK0_UNLOCK, &davinci_syscfg_regs->kick0);
+ writel(HAWKBOARD_KICK1_UNLOCK, &davinci_syscfg_regs->kick1);
+
+ /* setup the SUSPSRC for ARM to control emulation suspend */
+ writel(readl(&davinci_syscfg_regs->suspsrc) &
+ ~(DAVINCI_SYSCFG_SUSPSRC_EMAC | DAVINCI_SYSCFG_SUSPSRC_I2C |
+ DAVINCI_SYSCFG_SUSPSRC_SPI1 | DAVINCI_SYSCFG_SUSPSRC_TIMER0 |
+ DAVINCI_SYSCFG_SUSPSRC_UART2), &davinci_syscfg_regs->suspsrc);
+
+ /* 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
+ */
+ da8xx_configure_lpsc_items(lpsc, ARRAY_SIZE(lpsc));
+
+ /* configure pinmux settings */
+ davinci_configure_pin_mux_items(pinmuxes,
+ ARRAY_SIZE(pinmuxes));
+
+ writel(readl(&davinci_uart2_ctrl_regs->pwremu_mgmt) |
+ (DAVINCI_UART_PWREMU_MGMT_FREE) |
+ (DAVINCI_UART_PWREMU_MGMT_URRST) |
+ (DAVINCI_UART_PWREMU_MGMT_UTRST),
+ &davinci_uart2_ctrl_regs->pwremu_mgmt);
+
+ NS16550_init((NS16550_t)(DAVINCI_UART2_BASE),
+ CONFIG_SYS_NS16550_CLK / 16 / CONFIG_BAUDRATE);
+
+ puts("Nand boot...\n");
+
+ relocate_code(CONFIG_SYS_NAND_U_BOOT_RELOC_SP, (gd_t *)gd,
+ CONFIG_SYS_NAND_U_BOOT_DST);
+}
+
+void board_init_r(gd_t *gd, ulong dest_addr)
+{
+ nand_boot();
+}
+
+void puts(const char *str)
+{
+ while (*str)
+ putc(*str++);
+}
+
+void putc(char c)
+{
+ if (gd->flags & GD_FLG_SILENT)
+ return;
+
+ if (c == '\n')
+ NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), '\r');
+
+ NS16550_putc((NS16550_t)(DAVINCI_UART2_BASE), c);
+}
+
+void hang(void)
+{
+ puts("### ERROR ### Please RESET the board ###\n");
+ for (;;)
+ ;
+}
diff --git a/boards.cfg b/boards.cfg
index 6c2a667..e2c73eb 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -372,6 +372,9 @@ davinci_sffsdr arm arm926ejs sffsdr davinci davinci
davinci_sonata arm arm926ejs sonata davinci davinci
da830evm arm arm926ejs da8xxevm davinci davinci
da850evm arm arm926ejs da8xxevm davinci davinci
+hawkboard arm arm926ejs da8xxevm davinci davinci hawkboard:SYS_TEXT_BASE=0xc1180000
+hawkboard_nand arm arm926ejs da8xxevm davinci davinci hawkboard:SYS_TEXT_BASE=0xc1080000,NAND_U_BOOT
+hawkboard_uart arm arm926ejs da8xxevm davinci davinci hawkboard:SYS_TEXT_BASE=0xc1080000
guruplug arm arm926ejs - Marvell kirkwood
mv88f6281gtw_ge arm arm926ejs - Marvell kirkwood
openrd_base arm arm926ejs - Marvell kirkwood
diff --git a/doc/README.hawkboard b/doc/README.hawkboard
new file mode 100644
index 0000000..b7afec4
--- /dev/null
+++ b/doc/README.hawkboard
@@ -0,0 +1,93 @@
+Summary
+=======
+The README is for the boot procedure used for TI's OMAP-L138 based
+hawkboard. The hawkboard comes with a 128MiB Nand flash and a 128MiB
+DDR SDRAM along with a host of other controllers.
+
+The hawkboard is booted in three stages. The initial bootloader which
+executes upon reset is the Rom Boot Loader(RBL) which sits in the
+internal ROM of the omap. The RBL initialises the memory and the nand
+controller, and copies the image stored at a predefined location(block
+1) of the nand flash. The image loaded by the RBL to the memory is the
+AIS signed nand_spl image. This, in turns copies the u-boot binary
+from the nand flash to the memory and jumps to the u-boot entry point.
+
+AIS is an image format defined by TI for the images that are to be
+loaded to memory by the RBL. The image is divided into a series of
+sections and the image's entry point is specified. Each section comes
+with meta data like the target address the section is to be copied to
+and the size of the section, which is used by the RBL to load the
+image. At the end of the image the RBL jumps to the image entry
+point.
+
+The secondary stage bootloader(nand_spl) which is loaded by the RBL
+then loads the u-boot from a predefined location in the nand to the
+memory and jumps to the u-boot entry point.
+
+The reason a secondary stage bootloader is used is because the ECC
+layout expected by the RBL is not the same as that used by
+u-boot/linux. This also implies that for flashing the nand_spl image,
+we need to use the u-boot which uses the ECC layout expected by the
+RBL[1]. Booting u-boot over UART(UART boot) is explained here[2].
+
+
+Compilation
+===========
+Three images might be needed
+
+* nand_spl - This is the secondary bootloader which boots the u-boot
+ binary.
+
+ hawkboard_nand_config
+
+ The nand_spl ELF gets generated under nand_spl/u-boot-spl. This
+ needs to be processed with the AISGen tool for generating the AIS
+ signed image to be flashed. Steps for generating the AIS image are
+ explained here[3].
+
+* u-boot binary - This is the image flashed to the nand and copied to
+ the memory by the nand_spl.
+
+ hawkboard_config
+
+* u-boot for uart boot - This is same as the u-boot binary generated
+ above, with the sole difference of the CONFIG_SYS_TEXT_BASE being
+ 0xc1080000, as expected by the RBL.
+
+ hawkboard_uart_config
+
+
+Flashing the images to Nand
+===========================
+The nand_spl AIS image needs to be flashed to the block 1 of the
+Nand flash, as that is the location the RBL expects the image[4]. For
+flashing the nand_spl, boot over the u-boot specified in [1], and
+flash the image
+
+=> tftpboot 0xc0700000 <nand_spl_ais.bin>
+=> nand erase 0x20000 0x20000
+=> nand write.e 0xc0700000 0x20000 <nand_spl_size>
+
+The u-boot binary is flashed at location 0xe0000(block 6) of the nand
+flash. The nand_spl loader expects the u-boot at this location. For
+flashing the u-boot binary
+
+=> tftpboot 0xc0700000 u-boot.bin
+=> nand erase 0xe0000 0x40000
+=> nand write.e 0xc0700000 0xe0000 <u-boot-size>
+
+
+Links
+=====
+
+[1]
+ http://code.google.com/p/hawkboard/downloads/detail?name=u-boot_uart_ais_v1.bin
+
+[2]
+ http://elinux.org/Hawkboard#Booting_u-boot_over_UART
+
+[3]
+ http://elinux.org/Hawkboard#Signing_u-boot_for_UART_boot
+
+[4]
+ http://processors.wiki.ti.com/index.php/RBL_UBL_and_host_program#RBL_booting_from_NAND_and_ECC.2FBad_blocks
diff --git a/include/configs/hawkboard.h b/include/configs/hawkboard.h
new file mode 100644
index 0000000..a11e776
--- /dev/null
+++ b/include/configs/hawkboard.h
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * Based on davinci_dvevm.h. Original Copyrights follow:
+ *
+ * Copyright (C) 2007 Sergey Kubushyn <ksi at koi8.net>
+ *
+ * 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.
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * Board
+ */
+#define CONFIG_SYS_USE_NAND 1
+
+/*
+ * SoC Configuration
+ */
+#define CONFIG_MACH_DAVINCI_HAWK
+#define CONFIG_ARM926EJS /* arm926ejs CPU core */
+#define CONFIG_SOC_DA8XX /* TI DA8xx SoC */
+#define CONFIG_SYS_CLK_FREQ clk_get(DAVINCI_ARM_CLKID)
+#define CONFIG_SYS_OSCIN_FREQ 24000000
+#define CONFIG_SYS_TIMERBASE DAVINCI_TIMER0_BASE
+#define CONFIG_SYS_HZ_CLOCK clk_get(DAVINCI_AUXCLK_CLKID)
+#define CONFIG_SYS_HZ 1000
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#if defined CONFIG_NAND_SPL
+#define CONFIG_SKIP_RELOCATE_UBOOT
+#endif
+#define CONFIG_BOARD_EARLY_INIT_F
+
+/*
+ * Memory Info
+ */
+#define CONFIG_SYS_MALLOC_LEN (1*1024*1024) /* malloc() len */
+#define CONFIG_SYS_GBL_DATA_SIZE 128 /* reserved for initial data */
+#define PHYS_SDRAM_1 DAVINCI_DDR_EMIF_DATA_BASE
+#define PHYS_SDRAM_1_SIZE (128 << 20) /* SDRAM size 128MB */
+#define CONFIG_SYS_SDRAM_BASE 0xc0000000
+#define CONFIG_MAX_RAM_BANK_SIZE (512 << 20)
+#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + 0x1000 -\
+ CONFIG_SYS_GBL_DATA_SIZE)
+
+/* memtest start addr */
+#define CONFIG_SYS_MEMTEST_START (PHYS_SDRAM_1)
+
+/* memtest will be run on 16MB */
+#define CONFIG_SYS_MEMTEST_END (PHYS_SDRAM_1 + 16*1024*1024)
+
+#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */
+#define CONFIG_STACKSIZE (256*1024) /* regular stack */
+
+/*
+ * Serial Driver info
+ */
+#define CONFIG_SYS_NS16550
+#define CONFIG_SYS_NS16550_SERIAL
+#define CONFIG_SYS_NS16550_REG_SIZE -4
+#define CONFIG_SYS_NS16550_COM1 DAVINCI_UART2_BASE
+#define CONFIG_SYS_NS16550_CLK clk_get(DAVINCI_UART2_CLKID)
+#define CONFIG_CONS_INDEX 1
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
+
+/*
+ * Network & Ethernet Configuration
+ */
+#define CONFIG_EMAC_MDIO_PHY_NUM 0x7
+#if !defined(CONFIG_NAND_SPL)
+#define CONFIG_DRIVER_TI_EMAC
+#endif
+#define CONFIG_MII
+#define CONFIG_BOOTP_DEFAULT
+#define CONFIG_BOOTP_DNS
+#define CONFIG_BOOTP_DNS2
+#define CONFIG_BOOTP_SEND_HOSTNAME
+#define CONFIG_NET_RETRY_COUNT 10
+#define CONFIG_NET_MULTI
+
+/*
+ * Nand Flash
+ */
+#ifdef CONFIG_SYS_USE_NAND
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_SIZE (128 << 10)
+#define CONFIG_SYS_NAND_BASE DAVINCI_ASYNC_EMIF_DATA_CE3_BASE
+#define CONFIG_CLE_MASK 0x10
+#define CONFIG_ALE_MASK 0x8
+#define CONFIG_SYS_NAND_USE_FLASH_BBT
+#define CONFIG_NAND_DAVINCI
+#define CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST
+#define CFG_DAVINCI_STD_NAND_LAYOUT
+#define CONFIG_SYS_NAND_CS 3
+#define CONFIG_SYS_NAND_PAGE_2K
+#define CONFIG_SYS_64BIT_VSPRINTF /* needed for nand_util.c */
+/* Max number of NAND devices */
+#define CONFIG_SYS_MAX_NAND_DEVICE 1
+#define CONFIG_SYS_NAND_BASE_LIST { 0x62000000, }
+#define NAND_MAX_CHIPS 1
+/* Block 0--not used by bootcode */
+#define CONFIG_ENV_OFFSET 0x0
+
+#define CONFIG_SYS_NAND_PAGE_SIZE (2 << 10)
+#define CONFIG_SYS_NAND_BLOCK_SIZE (128 << 10)
+#define CONFIG_SYS_NAND_U_BOOT_OFFS 0xe0000
+#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x40000
+#define CONFIG_SYS_NAND_U_BOOT_DST 0xc1180000
+#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_NAND_U_BOOT_DST
+#define CONFIG_SYS_NAND_U_BOOT_RELOC_SP (CONFIG_SYS_NAND_U_BOOT_DST - \
+ CONFIG_SYS_NAND_U_BOOT_SIZE - \
+ CONFIG_SYS_MALLOC_LEN - \
+ CONFIG_SYS_GBL_DATA_SIZE)
+#define CONFIG_SYS_NAND_ECCPOS { \
+ 24, 25, 26, 27, 28, \
+ 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, \
+ 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, \
+ 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, \
+ 59, 60, 61, 62, 63 }
+#define CONFIG_SYS_NAND_PAGE_COUNT 64
+#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0
+#define CONFIG_SYS_NAND_ECCSIZE 512
+#define CONFIG_SYS_NAND_ECCBYTES 10
+#define CONFIG_SYS_NAND_ECCSTEPS (CONFIG_SYS_NAND_PAGE_SIZE / \
+ CONFIG_SYS_NAND_ECCSIZE)
+#define CONFIG_SYS_NAND_OOBSIZE 64
+#define CONFIG_SYS_NAND_ECCTOTAL (CONFIG_SYS_NAND_ECCBYTES * \
+ CONFIG_SYS_NAND_ECCSTEPS)
+#endif /* CONFIG_SYS_USE_NAND */
+
+/*
+ * U-Boot general configuration
+ */
+#define CONFIG_MISC_INIT_R
+#define CONFIG_BOOTFILE "uImage" /* Boot file name */
+#define CONFIG_SYS_PROMPT "hawkboard > " /* Command Prompt */
+#define CONFIG_SYS_CBSIZE 1024 /* Console I/O Buffer Size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
+#define CONFIG_SYS_MAXARGS 16 /* max number of command args */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Args Buffer Size */
+#define CONFIG_SYS_LOAD_ADDR (PHYS_SDRAM_1 + 0x700000)
+#define CONFIG_VERSION_VARIABLE
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CRC32_VERIFY
+#define CONFIG_MX_CYCLIC
+
+/*
+ * Linux Information
+ */
+#define LINUX_BOOT_PARAM_ADDR (CONFIG_SYS_MEMTEST_START + 0x100)
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_BOOTARGS \
+ "mem=128M console=ttyS2,115200n8 root=/dev/ram0 rw initrd=0xc1180000,"\
+ "4M ip=static"
+#define CONFIG_BOOTDELAY 3
+
+/*
+ * U-Boot commands
+ */
+#include <config_cmd_default.h>
+#define CONFIG_CMD_ENV
+#define CONFIG_CMD_ASKENV
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_DIAG
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_SAVES
+#define CONFIG_CMD_MEMORY
+
+#ifdef CONFIG_SYS_USE_NAND
+#undef CONFIG_CMD_FLASH
+#undef CONFIG_CMD_IMLS
+#define CONFIG_CMD_NAND
+#endif
+
+#ifndef CONFIG_DRIVER_TI_EMAC
+#undef CONFIG_CMD_NET
+#undef CONFIG_CMD_DHCP
+#undef CONFIG_CMD_MII
+#undef CONFIG_CMD_PING
+#endif
+
+#endif /* __CONFIG_H */
diff --git a/nand_spl/board/davinci/da8xxevm/Makefile b/nand_spl/board/davinci/da8xxevm/Makefile
new file mode 100644
index 0000000..6102675
--- /dev/null
+++ b/nand_spl/board/davinci/da8xxevm/Makefile
@@ -0,0 +1,141 @@
+#
+# (C) Copyright 2006-2007
+# Stefan Roese, DENX Software Engineering, sr at denx.de.
+#
+# (C) Copyright 2008
+# Guennadi Liakhovetki, DENX Software Engineering, <lg 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
+#
+
+CONFIG_NAND_SPL = y
+
+include $(TOPDIR)/config.mk
+
+LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
+LDFLAGS = -Bstatic -T $(nandobj)u-boot.lds -Ttext $(CONFIG_SYS_TEXT_BASE) $(PLATFORM_LDFLAGS)
+AFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL
+CFLAGS += -DCONFIG_PRELOADER -DCONFIG_NAND_SPL
+
+SOBJS = start.o _udivsi3.o _divsi3.o
+COBJS = cpu.o davinci_nand.o ns16550.o div0.o davinci_pinmux.o psc.o \
+ common.o hawkboard_nand_spl.o nand_boot.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: $(ALL)
+
+$(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) $(nandobj)u-boot.lds
+ cd $(LNDIR) && $(LD) $(LDFLAGS) $(__OBJS) \
+ -Map $(nandobj)u-boot-spl.map \
+ -o $(nandobj)u-boot-spl
+
+$(nandobj)u-boot.lds: $(LDSCRIPT)
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+
+# create symbolic links for common files
+
+# from board directory
+$(obj)davinci_pinmux.c:
+ @rm -f $@
+ @ln -s $(TOPDIR)/board/davinci/common/davinci_pinmux.c $@
+
+# from drivers/mtd/nand directory
+$(obj)davinci_nand.c:
+ @rm -f $@
+ @ln -s $(TOPDIR)/drivers/mtd/nand/davinci_nand.c $@
+
+# from nand_spl directory
+$(obj)nand_boot.c:
+ @rm -f $@
+ @ln -s $(TOPDIR)/nand_spl/nand_boot.c $@
+
+# from drivers/serial directory
+$(obj)ns16550.c:
+ @rm -f $@
+ @ln -sf $(TOPDIR)/drivers/serial/ns16550.c $@
+
+# from cpu directory
+$(obj)start.S:
+ @rm -f $@
+ ln -s $(TOPDIR)/arch/arm/cpu/arm926ejs/start.S $@
+
+# from lib directory
+$(obj)_udivsi3.S:
+ @rm -f $@
+ ln -s $(TOPDIR)/arch/arm/lib/_udivsi3.S $@
+
+# from lib directory
+$(obj)_divsi3.S:
+ @rm -f $@
+ ln -s $(TOPDIR)/arch/arm/lib/_divsi3.S $@
+
+# from lib directory
+$(obj)div0.c:
+ @rm -f $@
+ ln -s $(TOPDIR)/arch/arm/lib/div0.c $@
+
+# from SoC directory
+$(obj)cpu.c:
+ @rm -f $@
+ @ln -s $(TOPDIR)/arch/arm/cpu/arm926ejs/davinci/cpu.c $@
+
+# from board directory
+$(obj)hawkboard_nand_spl.c:
+ @rm -f $@
+ ln -s $(TOPDIR)/board/davinci/da8xxevm/hawkboard_nand_spl.c $@
+
+# from board directory
+$(obj)common.c:
+ @rm -f $@
+ ln -s $(TOPDIR)/board/davinci/da8xxevm/common.c $@
+
+$(obj)psc.c:
+ @rm -f $@
+ ln -s $(TOPDIR)/arch/arm/cpu/arm926ejs/davinci/psc.c $@
+
+
+#########################################################################
+
+$(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/davinci/da8xxevm/u-boot.lds b/nand_spl/board/davinci/da8xxevm/u-boot.lds
new file mode 100644
index 0000000..f6ccf08
--- /dev/null
+++ b/nand_spl/board/davinci/da8xxevm/u-boot.lds
@@ -0,0 +1,75 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj at denx.de>
+ *
+ * (C) Copyright 2008
+ * Guennadi Liakhovetki, DENX Software Engineering, <lg 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
+{
+ . = 0xc1080000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ start.o (.text)
+ cpu.o (.text)
+ nand_boot.o (.text)
+
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(.rodata) }
+
+ . = ALIGN(4);
+ .data : {
+ *(.data)
+ __datarel_start = .;
+ *(.data.rel)
+ __datarelrolocal_start = .;
+ *(.data.rel.ro.local)
+ __datarellocal_start = .;
+ *(.data.rel.local)
+ __datarelro_start = .;
+ *(.data.rel.ro)
+ }
+
+ . = ALIGN(4);
+ __rel_dyn_start = .;
+ __rel_dyn_end = .;
+ __dynsym_start = .;
+
+ __got_start = .;
+ . = ALIGN(4);
+ .got : { *(.got) }
+
+ __got_end = .;
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .bss : { *(.bss) }
+ _end = .;
+}
diff --git a/nand_spl/nand_boot.c b/nand_spl/nand_boot.c
index b9fd6f5..76b8566 100644
--- a/nand_spl/nand_boot.c
+++ b/nand_spl/nand_boot.c
@@ -236,6 +236,7 @@ void nand_boot(void)
/*
* Init board specific nand support
*/
+ nand_chip.select_chip = NULL;
nand_info.priv = &nand_chip;
nand_chip.IO_ADDR_R = nand_chip.IO_ADDR_W = (void __iomem *)CONFIG_SYS_NAND_BASE;
nand_chip.dev_ready = NULL; /* preset to NULL */
--
1.7.0.4
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