From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from relay2-v.mail.gandi.net ([217.70.178.76]) by bombadil.infradead.org with esmtp (Exim 4.69 #1 (Red Hat Linux)) id 1NURvO-0001FX-6n for barebox@lists.infradead.org; Mon, 11 Jan 2010 21:35:52 +0000 Date: Mon, 11 Jan 2010 22:31:12 +0100 From: Matthias Kaehlcke Message-ID: <20100111213112.GJ14051@darwin> References: <20100109232838.GB14051@darwin> <20100111094902.GR6923@pengutronix.de> <20100111103700.GH14051@darwin> <20100111112557.GU6923@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20100111112557.GU6923@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] Add support for EDB93xx boards [rev2] To: Sascha Hauer Cc: barebox@lists.infradead.org Added support for the following Cirrus Logic EDB93xx boards: EDB9301 EDB9302 EDB9302A EDB9307 EDB9307A EDB93012 EDB9315 EDB9315A Signed-off-by: Matthias Kaehlcke --- Changes with respect to rev1: * Use global linker script with EP93xx ifdef instead of a board specific one Documentation/boards.dox | 8 + arch/arm/configs/edb93xx_defconfig | 236 +++++++++++++++++++++++++++++++++ arch/arm/lib/barebox.lds.S | 5 + arch/arm/mach-ep93xx/Kconfig | 8 - board/edb93xx/Makefile | 2 + board/edb93xx/config.h | 4 + board/edb93xx/early_udelay.h | 34 +++++ board/edb93xx/edb93xx.c | 172 ++++++++++++++++++++++++ board/edb93xx/edb93xx.dox | 108 +++++++++++++++ board/edb93xx/edb93xx.h | 48 +++++++ board/edb93xx/env/bin/boot | 48 +++++++ board/edb93xx/env/bin/flash_partition | 22 +++ board/edb93xx/env/bin/init | 19 +++ board/edb93xx/env/bin/set_nor_parts | 3 + board/edb93xx/env/bin/update_kernel | 16 +++ board/edb93xx/env/bin/update_rootfs | 16 +++ board/edb93xx/env/config | 16 +++ board/edb93xx/flash_cfg.c | 38 ++++++ board/edb93xx/pll_cfg.c | 58 ++++++++ board/edb93xx/pll_cfg.h | 72 ++++++++++ board/edb93xx/sdram_cfg.c | 127 ++++++++++++++++++ board/edb93xx/sdram_cfg.h | 144 ++++++++++++++++++++ 22 files changed, 1196 insertions(+), 8 deletions(-) create mode 100644 arch/arm/configs/edb93xx_defconfig create mode 100644 board/edb93xx/Makefile create mode 100644 board/edb93xx/config.h create mode 100644 board/edb93xx/early_udelay.h create mode 100644 board/edb93xx/edb93xx.c create mode 100644 board/edb93xx/edb93xx.dox create mode 100644 board/edb93xx/edb93xx.h create mode 100644 board/edb93xx/env/bin/boot create mode 100644 board/edb93xx/env/bin/flash_partition create mode 100644 board/edb93xx/env/bin/init create mode 100644 board/edb93xx/env/bin/set_nor_parts create mode 100644 board/edb93xx/env/bin/update_kernel create mode 100644 board/edb93xx/env/bin/update_rootfs create mode 100644 board/edb93xx/env/config create mode 100644 board/edb93xx/flash_cfg.c create mode 100644 board/edb93xx/pll_cfg.c create mode 100644 board/edb93xx/pll_cfg.h create mode 100644 board/edb93xx/sdram_cfg.c create mode 100644 board/edb93xx/sdram_cfg.h diff --git a/Documentation/boards.dox b/Documentation/boards.dox index dba547f..7c7f4d1 100644 --- a/Documentation/boards.dox +++ b/Documentation/boards.dox @@ -20,6 +20,14 @@ ARM type: @li @subpage a9m2440 @li @subpage a9m2410 @li @subpage eukrea_cpuimx27 +@li @subpage edb9301 +@li @subpage edb9302 +@li @subpage edb9302a +@li @subpage edb9307 +@li @subpage edb9307a +@li @subpage edb9312 +@li @subpage edb9315 +@li @subpage edb9315a Blackfin type: diff --git a/arch/arm/configs/edb93xx_defconfig b/arch/arm/configs/edb93xx_defconfig new file mode 100644 index 0000000..d6b4b19 --- /dev/null +++ b/arch/arm/configs/edb93xx_defconfig @@ -0,0 +1,236 @@ +# +# Automatically generated make config: don't edit +# barebox version: 2009.12.0 +# Fri Jan 8 17:27:15 2010 +# +CONFIG_ARM=y + +# +# System Type +# +# CONFIG_ARCH_AT91 is not set +# CONFIG_ARCH_AT91RM9200 is not set +CONFIG_ARCH_EP93XX=y +# CONFIG_ARCH_IMX is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_OMAP is not set +# CONFIG_ARCH_S3C24xx is not set + +# +# Processor Type +# +CONFIG_CPU_32=y +CONFIG_CPU_ARM920T=y +CONFIG_CPU_32v4T=y + +# +# processor features +# +CONFIG_ARCH_TEXT_BASE=0x05700000 +CONFIG_BOARDINFO="Cirrus Logic EDB9301" +CONFIG_EP93XX_SDCE3_SYNC_PHYS_OFFSET=y + +# +# Cirrus EP93xx System-on-Chip +# +CONFIG_ARCH_EP9301=y +# CONFIG_ARCH_EP9302 is not set +# CONFIG_ARCH_EP9307 is not set +# CONFIG_ARCH_EP9312 is not set +# CONFIG_ARCH_EP9315 is not set +CONFIG_MACH_EDB9301=y +CONFIG_EP93XX_SDRAM_NUM_BANKS=4 +CONFIG_EP93XX_SDRAM_BANK0_BASE=0x00000000 +CONFIG_EP93XX_SDRAM_BANK0_SIZE=0x00800000 +CONFIG_EP93XX_SDRAM_BANK1_BASE=0x01000000 +CONFIG_EP93XX_SDRAM_BANK1_SIZE=0x00800000 +CONFIG_EP93XX_SDRAM_BANK2_BASE=0x04000000 +CONFIG_EP93XX_SDRAM_BANK2_SIZE=0x00800000 +CONFIG_EP93XX_SDRAM_BANK3_BASE=0x05000000 +CONFIG_EP93XX_SDRAM_BANK3_SIZE=0x00800000 +CONFIG_AEABI=y + +# +# Arm specific settings +# +CONFIG_CMD_ARM_CPUINFO=y +CONFIG_CMDLINE_TAG=y +CONFIG_SETUP_MEMORY_TAGS=y +# CONFIG_INITRD_TAG is not set +CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y +CONFIG_GREGORIAN_CALENDER=y +CONFIG_HAS_KALLSYMS=y +CONFIG_HAS_MODULES=y +CONFIG_CMD_MEMORY=y +CONFIG_ENV_HANDLING=y +CONFIG_GENERIC_GPIO=y + +# +# General Settings +# +CONFIG_LOCALVERSION_AUTO=y + +# +# memory layout +# +CONFIG_HAVE_CONFIGURABLE_TEXT_BASE=y +CONFIG_TEXT_BASE=0x05700000 +CONFIG_HAVE_CONFIGURABLE_MEMORY_LAYOUT=y +CONFIG_MEMORY_LAYOUT_DEFAULT=y +# CONFIG_MEMORY_LAYOUT_FIXED is not set +CONFIG_STACK_SIZE=0x8000 +CONFIG_MALLOC_SIZE=0x400000 +# CONFIG_BROKEN is not set +# CONFIG_EXPERIMENTAL is not set +CONFIG_MACH_HAS_LOWLEVEL_INIT=y +CONFIG_MACH_DO_LOWLEVEL_INIT=y +CONFIG_PROMPT="barebox:" +CONFIG_BAUDRATE=115200 +CONFIG_LONGHELP=y +CONFIG_CBSIZE=1024 +CONFIG_MAXARGS=16 +CONFIG_SHELL_HUSH=y +# CONFIG_SHELL_SIMPLE is not set +CONFIG_GLOB=y +CONFIG_PROMPT_HUSH_PS2="> " +CONFIG_CMDLINE_EDITING=y +CONFIG_AUTO_COMPLETE=y +CONFIG_DYNAMIC_CRC_TABLE=y +CONFIG_ERRNO_MESSAGES=y +CONFIG_TIMESTAMP=y +CONFIG_CONSOLE_FULL=y +CONFIG_CONSOLE_ACTIVATE_FIRST=y +# CONFIG_OF_FLAT_TREE is not set +CONFIG_PARTITION=y +CONFIG_DEFAULT_ENVIRONMENT=y +CONFIG_DEFAULT_ENVIRONMENT_PATH="board/edb93xx/env" + +# +# Debugging +# +# CONFIG_DEBUG_INFO is not set +# CONFIG_ENABLE_FLASH_NOISE is not set +# CONFIG_ENABLE_PARTITION_NOISE is not set +# CONFIG_ENABLE_DEVICE_NOISE is not set + +# +# Commands +# + +# +# scripting +# +CONFIG_CMD_EDIT=y +CONFIG_CMD_SLEEP=y +CONFIG_CMD_SAVEENV=y +CONFIG_CMD_LOADENV=y +CONFIG_CMD_EXPORT=y +CONFIG_CMD_PRINTENV=y +CONFIG_CMD_READLINE=y +CONFIG_CMD_TRUE=y +CONFIG_CMD_FALSE=y + +# +# file commands +# +CONFIG_CMD_LS=y +CONFIG_CMD_RM=y +CONFIG_CMD_CAT=y +CONFIG_CMD_MKDIR=y +CONFIG_CMD_RMDIR=y +CONFIG_CMD_CP=y +CONFIG_CMD_PWD=y +CONFIG_CMD_CD=y +CONFIG_CMD_MOUNT=y +CONFIG_CMD_UMOUNT=y + +# +# console +# +CONFIG_CMD_CLEAR=y +CONFIG_CMD_ECHO=y + +# +# memory +# +# CONFIG_CMD_LOADB is not set +CONFIG_CMD_MEMINFO=y +CONFIG_CMD_CRC=y +CONFIG_CMD_MTEST=y +# CONFIG_CMD_MTEST_ALTERNATIVE is not set + +# +# flash +# +CONFIG_CMD_FLASH=y + +# +# booting +# +CONFIG_CMD_BOOTM=y +# CONFIG_CMD_BOOTM_ZLIB is not set +# CONFIG_CMD_BOOTM_BZLIB is not set +# CONFIG_CMD_BOOTM_SHOW_TYPE is not set +CONFIG_CMD_BOOTZ=y +CONFIG_CMD_BOOTU=y +CONFIG_CMD_RESET=y +CONFIG_CMD_GO=y +CONFIG_CMD_TIMEOUT=y +CONFIG_CMD_PARTITION=y +CONFIG_CMD_TEST=y +CONFIG_CMD_VERSION=y +CONFIG_CMD_HELP=y +CONFIG_CMD_DEVINFO=y +CONFIG_CMD_GPIO=y +CONFIG_NET=y +CONFIG_NET_DHCP=y +# CONFIG_NET_RARP is not set +# CONFIG_NET_NFS is not set +CONFIG_NET_PING=y +CONFIG_NET_TFTP=y + +# +# Drivers +# + +# +# serial drivers +# +# CONFIG_DRIVER_SERIAL_ARM_DCC is not set +# CONFIG_DRIVER_SERIAL_NS16550 is not set +CONFIG_DRIVER_SERIAL_PL010=y +CONFIG_MIIPHY=y + +# +# Network drivers +# +# CONFIG_DRIVER_NET_SMC911X is not set +# CONFIG_DRIVER_NET_SMC91111 is not set +CONFIG_DRIVER_NET_EP93XX=y + +# +# SPI drivers +# +# CONFIG_SPI is not set +# CONFIG_I2C is not set + +# +# flash drivers +# +CONFIG_DRIVER_CFI=y +# CONFIG_DRIVER_CFI_NEW is not set +CONFIG_DRIVER_CFI_OLD=y +# CONFIG_CFI_BUFFER_WRITE is not set +# CONFIG_NAND is not set +# CONFIG_USB is not set +# CONFIG_USB_GADGET is not set +# CONFIG_VIDEO is not set + +# +# Filesystem support +# +# CONFIG_FS_CRAMFS is not set +CONFIG_FS_RAMFS=y +CONFIG_FS_DEVFS=y +CONFIG_CRC32=y +# CONFIG_GENERIC_FIND_NEXT_BIT is not set diff --git a/arch/arm/lib/barebox.lds.S b/arch/arm/lib/barebox.lds.S index c8d1bb9..a5eaefa 100644 --- a/arch/arm/lib/barebox.lds.S +++ b/arch/arm/lib/barebox.lds.S @@ -39,6 +39,11 @@ SECTIONS _stext = .; _text = .; *(.text_entry*) +#ifdef CONFIG_ARCH_EP93XX + /* the EP93xx expects to find the pattern 'CRUS' at 0x1000 */ + . = 0x1000; + LONG(0x53555243) /* 'CRUS' */ +#endif *(.text_bare_init*) *(.text*) } diff --git a/arch/arm/mach-ep93xx/Kconfig b/arch/arm/mach-ep93xx/Kconfig index 139b08d..ed6e986 100644 --- a/arch/arm/mach-ep93xx/Kconfig +++ b/arch/arm/mach-ep93xx/Kconfig @@ -39,7 +39,6 @@ config MACH_EDB9301 bool "Cirrus Logic EDB9301" select EP93XX_SDCE3_SYNC_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9301 Evaluation board @@ -105,7 +104,6 @@ config MACH_EDB9302 bool "Cirrus Logic EDB9302" select EP93XX_SDCE3_SYNC_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9302 Evaluation board @@ -113,7 +111,6 @@ config MACH_EDB9302A bool "Cirrus Logic EDB9302A" select EP93XX_SDCE0_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9302A Evaluation board @@ -226,7 +223,6 @@ config MACH_EDB9307 bool "Cirrus Logic EDB9307" select EP93XX_SDCE3_SYNC_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9307 Evaluation board @@ -234,7 +230,6 @@ config MACH_EDB9307A bool "Cirrus Logic EDB9307A" select EP93XX_SDCE0_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9307A Evaluation board @@ -315,7 +310,6 @@ config MACH_EDB9312 bool "Cirrus Logic EDB9312" select EP93XX_SDCE3_SYNC_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9312 Evaluation board @@ -365,7 +359,6 @@ config MACH_EDB9315 bool "Cirrus Logic EDB9315" select EP93XX_SDCE3_SYNC_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9315 Evaluation board @@ -373,7 +366,6 @@ config MACH_EDB9315A bool "Cirrus Logic EDB9315A" select EP93XX_SDCE0_PHYS_OFFSET select MACH_HAS_LOWLEVEL_INIT - select BOARD_LINKER_SCRIPT help Say y here if you are using Cirrus Logic's EDB9315A Evaluation board diff --git a/board/edb93xx/Makefile b/board/edb93xx/Makefile new file mode 100644 index 0000000..e19cd7b --- /dev/null +++ b/board/edb93xx/Makefile @@ -0,0 +1,2 @@ + +obj-y += edb93xx.o flash_cfg.o pll_cfg.o sdram_cfg.o diff --git a/board/edb93xx/config.h b/board/edb93xx/config.h new file mode 100644 index 0000000..6ae9a40 --- /dev/null +++ b/board/edb93xx/config.h @@ -0,0 +1,4 @@ +#ifndef __CONFIG_H +#define __CONFIG_H + +#endif /* __CONFIG_H */ diff --git a/board/edb93xx/early_udelay.h b/board/edb93xx/early_udelay.h new file mode 100644 index 0000000..3b26b3f --- /dev/null +++ b/board/edb93xx/early_udelay.h @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2009 Matthias Kaehlcke + * + * 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 + +/* delay execution before timers are initialized */ +static inline void early_udelay(uint32_t usecs) +{ + /* loop takes 4 cycles at 5.0ns (fastest case, running at 200MHz) */ + register uint32_t loops = (usecs * 1000) / 20; + + __asm__ volatile ("1:\n" + "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0" (loops)); +} diff --git a/board/edb93xx/edb93xx.c b/board/edb93xx/edb93xx.c new file mode 100644 index 0000000..add88e1 --- /dev/null +++ b/board/edb93xx/edb93xx.c @@ -0,0 +1,172 @@ +/* + * Copyright (C) 2009 Matthias Kaehlcke + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "edb93xx.h" + +/* + * Up to 32MiB NOR type flash, connected to + * CS line 6, data width is 16 bit + */ +static struct device_d cfi_dev = { + .name = "cfi_flash", + .map_base = 0x60000000, + .size = EDB93XX_CFI_FLASH_SIZE, +}; + +static struct memory_platform_data ram_dev_pdata0 = { + .name = "ram0", + .flags = DEVFS_RDWR, +}; + +static struct device_d sdram0_dev = { + .name = "mem", + .map_base = CONFIG_EP93XX_SDRAM_BANK0_BASE, + .size = CONFIG_EP93XX_SDRAM_BANK0_SIZE, + .platform_data = &ram_dev_pdata0, +}; + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2) +static struct memory_platform_data ram_dev_pdata1 = { + .name = "ram1", + .flags = DEVFS_RDWR, +}; + +static struct device_d sdram1_dev = { + .name = "mem", + .map_base = CONFIG_EP93XX_SDRAM_BANK1_BASE, + .size = CONFIG_EP93XX_SDRAM_BANK1_SIZE, + .platform_data = &ram_dev_pdata1, +}; +#endif + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3) +static struct memory_platform_data ram_dev_pdata2 = { + .name = "ram2", + .flags = DEVFS_RDWR, +}; + +static struct device_d sdram2_dev = { + .name = "mem", + .map_base = CONFIG_EP93XX_SDRAM_BANK2_BASE, + .size = CONFIG_EP93XX_SDRAM_BANK2_SIZE, + .platform_data = &ram_dev_pdata2, +}; +#endif + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4) +static struct memory_platform_data ram_dev_pdata3 = { + .name = "ram3", + .flags = DEVFS_RDWR, +}; + +static struct device_d sdram3_dev = { + .name = "mem", + .map_base = CONFIG_EP93XX_SDRAM_BANK3_BASE, + .size = CONFIG_EP93XX_SDRAM_BANK3_SIZE, + .platform_data = &ram_dev_pdata3, +}; +#endif + +static struct device_d eth_dev = { + .name = "ep93xx_eth", +}; + +static int ep93xx_devices_init(void) +{ + register_device(&cfi_dev); + + /* + * Create partitions that should be + * not touched by any regular user + */ + devfs_add_partition("nor0", 0x00000, 0x40000, PARTITION_FIXED, "self0"); + devfs_add_partition("nor0", 0x40000, 0x20000, PARTITION_FIXED, "env0"); + + protect_file("/dev/env0", 1); + + register_device(&sdram0_dev); +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2) + register_device(&sdram1_dev); +#endif +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3) + register_device(&sdram2_dev); +#endif +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4) + register_device(&sdram3_dev); +#endif + + armlinux_add_dram(&sdram0_dev); +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2) + armlinux_add_dram(&sdram1_dev); +#endif +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3) + armlinux_add_dram(&sdram2_dev); +#endif +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4) + armlinux_add_dram(&sdram3_dev); +#endif + + register_device(ð_dev); + + armlinux_set_bootparams((void *)CONFIG_EP93XX_SDRAM_BANK0_BASE + 0x100); + + armlinux_set_architecture(MACH_TYPE); + + return 0; +} + +device_initcall(ep93xx_devices_init); + +static struct device_d edb93xx_serial_device = { + .name = "pl010_serial", + .map_base = UART1_BASE, + .size = 4096, +}; + +static int edb93xx_console_init(void) +{ + struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; + + /* + * set UARTBAUD bit to drive UARTs with 14.7456MHz instead of + * 14.7456/2 MHz + */ + uint32_t value = readl(&syscon->pwrcnt); + value |= SYSCON_PWRCNT_UART_BAUD; + writel(value, &syscon->pwrcnt); + + register_device(&edb93xx_serial_device); + + return 0; +} + +console_initcall(edb93xx_console_init); diff --git a/board/edb93xx/edb93xx.dox b/board/edb93xx/edb93xx.dox new file mode 100644 index 0000000..3964d55 --- /dev/null +++ b/board/edb93xx/edb93xx.dox @@ -0,0 +1,108 @@ +/** @page edb9301 Cirrus Logic EDB9301 + +This boards is based on a Cirrus Logic EP9301 CPU. The board is shipped with: + +- 16MiB NOR type Flash Memory +- 32MiB synchronous dynamic RAM on CS3 +- 128kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec + +*/ + +/** @page edb9302 Cirrus Logic EDB9302 + +This board is based on a Cirrus Logic EP9302 CPU. The board is shipped with: + +- 16MiB NOR type Flash Memory +- 32MiB synchronous dynamic RAM on CS3 +- 128kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec + +*/ + +/** @page edb9302a Cirrus Logic EDB9302A + +This board is based on a Cirrus Logic EP9302 CPU. The board is shipped with: + +- 16MiB NOR type Flash Memory +- 32MiB synchronous dynamic RAM on CS0 +- 512kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec + +*/ + +/** @page edb9307 Cirrus Logic EDB9307 + +This board is based on a Cirrus Logic EP9307 CPU. The board is shipped with: + +- 32MiB NOR type Flash Memory +- 64MiB synchronous dynamic RAM on CS3 +- 512kiB asynchronous SRAM +- 128kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec +- Real-Time Clock +- IR receiver + +*/ + +/** @page edb9307a Cirrus Logic EDB9307A + +This board is based on a Cirrus Logic EP9307 CPU. The board is shipped with: + +- 32MiB NOR type Flash Memory +- 64MiB synchronous dynamic RAM on CS0 +- 512kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec +- Real-Time Clock +- IR receiver + +*/ + +/** @page edb9312 Cirrus Logic EDB9312 + +This board is based on a Cirrus Logic EP9312 CPU. The board is shipped with: + +- 32MiB NOR type Flash Memory +- 64MiB synchronous dynamic RAM on CS3 +- 512kiB asynchronous SRAM +- 128kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec +- Real-Time Clock +- IR receiver + +*/ + +/** @page edb9315 Cirrus Logic EDB9315 + +This board is based on a Cirrus Logic EP9315 CPU. The board is shipped with: + +- 32MiB NOR type Flash Memory +- 64MiB synchronous dynamic RAM on CS3 +- 512kiB asynchronous SRAM +- 128kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec +- Real-Time Clock +- IR receiver + +*/ + +/** @page edb9315a Cirrus Logic EDB9315A + +This board is based on a Cirrus Logic EP9315 CPU. The board is shipped with: + +- 32MiB NOR type Flash Memory +- 64MiB synchronous dynamic RAM on CS0 +- 128kiB serial EEPROM +- MII 10/100 Ethernet PHY +- Stereo audio codec +- Real-Time Clock +- IR receiver + +*/ \ No newline at end of file diff --git a/board/edb93xx/edb93xx.h b/board/edb93xx/edb93xx.h new file mode 100644 index 0000000..5e5c6f5 --- /dev/null +++ b/board/edb93xx/edb93xx.h @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2009 Matthias Kaehlcke + * + * 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 + */ + +#if defined(CONFIG_MACH_EDB9301) +#define MACH_TYPE MACH_TYPE_EDB9301 +#elif defined(CONFIG_MACH_EDB9302) +#define MACH_TYPE MACH_TYPE_EDB9302 +#elif defined(CONFIG_MACH_EDB9302A) +#define MACH_TYPE MACH_TYPE_EDB9302A +#elif defined(CONFIG_MACH_EDB9307) +#define MACH_TYPE MACH_TYPE_EDB9307 +#elif defined(CONFIG_MACH_EDB9307A) +#define MACH_TYPE MACH_TYPE_EDB9307A +#elif defined(CONFIG_MACH_EDB9312) +#define MACH_TYPE MACH_TYPE_EDB9312 +#elif defined(CONFIG_MACH_EDB9315) +#define MACH_TYPE MACH_TYPE_EDB9315 +#elif defined(CONFIG_MACH_EDB9315A) +#define MACH_TYPE MACH_TYPE_EDB9315A +#endif + +#if defined(CONFIG_MACH_EDB9301) || defined(CONFIG_MACH_EDB9302) || \ + defined(CONFIG_MACH_EDB9302A) +#define EDB93XX_CFI_FLASH_SIZE (16 * 1024 * 1024) +#elif defined(CONFIG_MACH_EDB9307) || defined(CONFIG_MACH_EDB9307A) || \ + defined(CONFIG_MACH_EDB9312) || defined(CONFIG_MACH_EDB9315) || \ + defined(CONFIG_MACH_EDB9315A) +#define EDB93XX_CFI_FLASH_SIZE (32 * 1024 * 1024) +#endif diff --git a/board/edb93xx/env/bin/boot b/board/edb93xx/env/bin/boot new file mode 100644 index 0000000..143f3d0 --- /dev/null +++ b/board/edb93xx/env/bin/boot @@ -0,0 +1,48 @@ +#!/bin/sh + +. /env/config + +if [ x${rootfs_boot_media} = xflash ]; +then + rootfs_img=/dev/nor0.rootfs_${active_cfg} + + if [ x${active_cfg} = x1 ]; + then + rootfs_blkdev=/dev/mtdblock4 + cfg_1_ro="ro" + cfg_2_ro="" + else + rootfs_blkdev=/dev/mtdblock6 + cfg_1_ro="" + cfg_2_ro="ro" + fi + + bootargs_rootfs="root=${rootfs_blkdev} rootfstype=squashfs ro" +elif [ x${rootfs_boot_media} = xnet ]; +then + bootargs_rootfs="root=/dev/nfs nfsroot=${eth0.serverip}:/srv/nfs/${board},v3,nolock,tcp ip=${eth0.ipaddr}" +else + echo "ERROR: \$rootfs_boot_media invalid: ${rootfs_boot_media}" + exit 1 +fi + +if [ x${kernel_boot_media} = xflash ]; +then + kernel_img=/dev/nor0.kernel_${active_cfg} +elif [ x${kernel_boot_media} = xnet ]; +then + cd / + tftp ${board}/kernel.img || exit 1 + kernel_img=/kernel.img +else + echo "ERROR: \$kernel_boot_media invalid: ${kernel_boot_media}" + exit 1 +fi + +source /env/bin/set_nor_parts + +bootargs_mtd="mtdparts=physmap-flash.0:${nor_parts}" + +bootargs="${bootargs_common} ${bootargs_mtd} ${bootargs_rootfs}" + +bootm ${kernel_img} \ No newline at end of file diff --git a/board/edb93xx/env/bin/flash_partition b/board/edb93xx/env/bin/flash_partition new file mode 100644 index 0000000..ded40aa --- /dev/null +++ b/board/edb93xx/env/bin/flash_partition @@ -0,0 +1,22 @@ +#!/bin/sh + +if [ $# != 2 ]; +then + echo "Usage: $0 " + exit 1 +fi + +image=$1 +partition=$2 + +echo "Unlocking ${partition}" +unprotect ${partition} + +echo "Erasing ${partition}" +erase ${partition} + +echo "Flashing ${image} to ${partition}" +cp ${image} ${partition} + +echo "Locking ${partition}" +protect ${partition} diff --git a/board/edb93xx/env/bin/init b/board/edb93xx/env/bin/init new file mode 100644 index 0000000..c6b5aed --- /dev/null +++ b/board/edb93xx/env/bin/init @@ -0,0 +1,19 @@ +#!/bin/sh + +PATH=/env/bin +export PATH + +. /env/config + +# add partitions to barebox +. /env/bin/set_nor_parts +addpart /dev/nor0 ${nor_parts} + +echo +echo -n "Hit any key to stop autoboot: " +timeout -a $autoboot_timeout +if [ $? != 0 ]; then + exit +fi + +boot \ No newline at end of file diff --git a/board/edb93xx/env/bin/set_nor_parts b/board/edb93xx/env/bin/set_nor_parts new file mode 100644 index 0000000..38321fa --- /dev/null +++ b/board/edb93xx/env/bin/set_nor_parts @@ -0,0 +1,3 @@ +#!/bin/sh + +nor_parts="256k(barebox)ro,128k(env_boot),128k(env_boot.bak),1664k(kernel_1)${cfg_1_ro},6144k(rootfs_1)${cfg_1_ro},1664k(kernel_2)${cfg_2_ro},6144k(rootfs_2)${cfg_2_ro},128k(cfg_app),128k(cfg_app.bak)" \ No newline at end of file diff --git a/board/edb93xx/env/bin/update_kernel b/board/edb93xx/env/bin/update_kernel new file mode 100644 index 0000000..3e4b9b0 --- /dev/null +++ b/board/edb93xx/env/bin/update_kernel @@ -0,0 +1,16 @@ +#!/bin/sh + +. /env/config + +if [ $# != 1 ]; +then + echo "Usage: $0 <1/2>" + exit 1 +fi + +partition=/dev/nor0.kernel_$1 + +cd / +tftp ${board}/kernel.img || exit 1 + +flash_partition kernel.img ${partition} diff --git a/board/edb93xx/env/bin/update_rootfs b/board/edb93xx/env/bin/update_rootfs new file mode 100644 index 0000000..52a3699 --- /dev/null +++ b/board/edb93xx/env/bin/update_rootfs @@ -0,0 +1,16 @@ +#!/bin/sh + +. /env/config + +if [ $# != 1 ]; +then + echo "Usage: $0 <1/2>" + exit 1 +fi + +partition=/dev/nor0.rootfs_$1 + +cd / +tftp ${board}/rootfs.img || exit 1 + +flash_partition rootfs.img ${partition} diff --git a/board/edb93xx/env/config b/board/edb93xx/env/config new file mode 100644 index 0000000..47ab209 --- /dev/null +++ b/board/edb93xx/env/config @@ -0,0 +1,16 @@ +#!/bin/sh + +eth0.ipaddr=192.168.0.50 +eth0.netmask=255.255.0.0 +eth0.serverip=192.168.0.8 +eth0.ethaddr=80:81:82:83:84:85 + +board=edb9301 +autoboot_timeout=3 +active_cfg=1 +bootargs_common="console=ttyAM0,115200" + +# valid media: flash/net +kernel_boot_media=flash +rootfs_boot_media=flash + diff --git a/board/edb93xx/flash_cfg.c b/board/edb93xx/flash_cfg.c new file mode 100644 index 0000000..91a6a4e --- /dev/null +++ b/board/edb93xx/flash_cfg.c @@ -0,0 +1,38 @@ +/* + * Flash setup for Cirrus edb93xx boards + * + * Copyright (C) 2009 Matthias Kaehlcke + * + * 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 +#include +#include + +#define SMC_BCR6_VALUE (2 << SMC_BCR_IDCY_SHIFT | 5 << SMC_BCR_WST1_SHIFT | \ + SMC_BCR_BLE | 2 << SMC_BCR_WST2_SHIFT | \ + 1 << SMC_BCR_MW_SHIFT) + +void flash_cfg(void) +{ + struct smc_regs *smc = (struct smc_regs *)SMC_BASE; + + writel(SMC_BCR6_VALUE, &smc->bcr6); +} diff --git a/board/edb93xx/pll_cfg.c b/board/edb93xx/pll_cfg.c new file mode 100644 index 0000000..a687af0 --- /dev/null +++ b/board/edb93xx/pll_cfg.c @@ -0,0 +1,58 @@ +/* + * PLL setup for Cirrus edb93xx boards + * + * Copyright (C) 2009 Matthias Kaehlcke + * + * Copyright (C) 2006 Dominic Rath + * + * 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 +#include +#include "pll_cfg.h" +#include "early_udelay.h" + +void pll_cfg(void) +{ + struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; + + /* setup PLL1 */ + writel(CLKSET1_VAL, &syscon->clkset1); + + /* + * flush the pipeline + * writing to CLKSET1 causes the EP93xx to enter standby for between + * 8 ms to 16 ms, until PLL1 stabilizes + */ + asm("nop"); + asm("nop"); + asm("nop"); + asm("nop"); + asm("nop"); + + /* setup PLL2 */ + writel(CLKSET2_VAL, &syscon->clkset2); + + /* + * the user's guide recommends to wait at least 1 ms for PLL2 to + * stabilize + */ + early_udelay(1000); +} diff --git a/board/edb93xx/pll_cfg.h b/board/edb93xx/pll_cfg.h new file mode 100644 index 0000000..9691339 --- /dev/null +++ b/board/edb93xx/pll_cfg.h @@ -0,0 +1,72 @@ +/* + * PLL register values for Cirrus edb93xx boards + * + * Copyright (C) 2009 Matthias Kaehlcke + * + * 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 +#include + +#if defined(CONFIG_MACH_EDB9301) || defined(CONFIG_MACH_EDB9302) || \ + defined(CONFIG_MACH_EDB9302A) +/* + * fclk_div: 2, nbyp1: 1, hclk_div: 5, pclk_div: 2 + * pll1_x1: 294912000.000000, pll1_x2ip: 36864000.000000, + * pll1_x2: 331776000.000000, pll1_out: 331776000.000000 + */ +#define CLKSET1_VAL (7 << SYSCON_CLKSET_PLL_X2IPD_SHIFT | \ + 8 << SYSCON_CLKSET_PLL_X2FBD2_SHIFT | \ + 19 << SYSCON_CLKSET_PLL_X1FBD1_SHIFT | \ + 1 << SYSCON_CLKSET1_PCLK_DIV_SHIFT | \ + 3 << SYSCON_CLKSET1_HCLK_DIV_SHIFT | \ + SYSCON_CLKSET1_NBYP1 | \ + 1 << SYSCON_CLKSET1_FCLK_DIV_SHIFT) +#elif defined(CONFIG_MACH_EDB9307) || defined(CONFIG_MACH_EDB9307A) ||\ + defined CONFIG_MACH_EDB9312 || defined(CONFIG_MACH_EDB9315) ||\ + defined(CONFIG_MACH_EDB9315A) +/* + * fclk_div: 2, nbyp1: 1, hclk_div: 4, pclk_div: 2 + * pll1_x1: 3096576000.000000, pll1_x2ip: 129024000.000000, + * pll1_x2: 3999744000.000000, pll1_out: 1999872000.000000 + */ +#define CLKSET1_VAL (23 << SYSCON_CLKSET_PLL_X2IPD_SHIFT | \ + 30 << SYSCON_CLKSET_PLL_X2FBD2_SHIFT | \ + 20 << SYSCON_CLKSET_PLL_X1FBD1_SHIFT | \ + 1 << SYSCON_CLKSET1_PCLK_DIV_SHIFT | \ + 2 << SYSCON_CLKSET1_HCLK_DIV_SHIFT | \ + SYSCON_CLKSET1_NBYP1 | \ + 1 << SYSCON_CLKSET1_FCLK_DIV_SHIFT) +#else +#error "Undefined board" +#endif + +/* + * usb_div: 4, nbyp2: 1, pll2_en: 1 + * pll2_x1: 368640000.000000, pll2_x2ip: 15360000.000000, + * pll2_x2: 384000000.000000, pll2_out: 192000000.000000 + */ +#define CLKSET2_VAL (23 << SYSCON_CLKSET_PLL_X2IPD_SHIFT | \ + 24 << SYSCON_CLKSET_PLL_X2FBD2_SHIFT | \ + 24 << SYSCON_CLKSET_PLL_X1FBD1_SHIFT | \ + 1 << SYSCON_CLKSET_PLL_PS_SHIFT | \ + SYSCON_CLKSET2_PLL2_EN | \ + SYSCON_CLKSET2_NBYP2 | \ + 3 << SYSCON_CLKSET2_USB_DIV_SHIFT) diff --git a/board/edb93xx/sdram_cfg.c b/board/edb93xx/sdram_cfg.c new file mode 100644 index 0000000..9f56f72 --- /dev/null +++ b/board/edb93xx/sdram_cfg.c @@ -0,0 +1,127 @@ +/* + * Copyright (C) 2009 Matthias Kaehlcke + * + * Copyright (C) 2006 Dominic Rath + * + * 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 +#include +#include "sdram_cfg.h" +#include "early_udelay.h" + +#define PROGRAM_MODE_REG(bank) (*(volatile uint32_t *) \ + (SDRAM_BASE_ADDR | SDRAM_BANK_SEL_##bank | SDRAM_MODE_REG_VAL)) + +#define PRECHARGE_BANK(bank) (*(volatile uint32_t *) \ + (SDRAM_BASE_ADDR | SDRAM_BANK_SEL_##bank)) + +static void force_precharge(void); +static void setup_refresh_timer(void); +static void program_mode_registers(void); + +void sdram_cfg(void) +{ + struct sdram_regs *sdram = (struct sdram_regs *)SDRAM_BASE; + + writel(SDRAM_DEVCFG_VAL, &sdram->SDRAM_DEVCFG_REG); + + /* Issue continous NOP commands */ + writel(GLCONFIG_INIT | GLCONFIG_MRS | GLCONFIG_CKE, &sdram->glconfig); + + early_udelay(200); + + force_precharge(); + + setup_refresh_timer(); + + program_mode_registers(); + + /* Select normal operation mode */ + writel(GLCONFIG_CKE, &sdram->glconfig); +} + +static void force_precharge(void) +{ + /* + * Errata most EP93xx revisions say that PRECHARGE ALL isn't always + * issued. + * + * Do a read from each bank to make sure they're precharged + */ + + PRECHARGE_BANK(0); + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2) + PRECHARGE_BANK(1); +#endif + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3) + PRECHARGE_BANK(2); +#endif + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4) + PRECHARGE_BANK(3); +#endif +} + +static void setup_refresh_timer(void) +{ + struct sdram_regs *sdram = (struct sdram_regs *)SDRAM_BASE; + + /* Load refresh timer with 10 to issue refresh every 10 cycles */ + writel(0x0a, &sdram->refrshtimr); + + /* + * Wait at least 80 clock cycles to provide 8 refresh cycles + * to all SDRAMs + */ + early_udelay(1); + + /* + * Program refresh timer with normal value + * We need 8192 refresh cycles every 64ms + * at 15ns (HCLK >= 66MHz) per cycle: + * 64ms / 8192 = 7.8125us + * 7.8125us / 15ns = 520 (0x208) + */ + /* + * TODO: redboot uses 0x1e0 for the slowest possible device + * but i don't understand how this value is calculated + */ + writel(0x208, &sdram->refrshtimr); +} + +static void program_mode_registers(void) +{ + PROGRAM_MODE_REG(0); + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 2) + PROGRAM_MODE_REG(1); +#endif + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS >= 3) + PROGRAM_MODE_REG(2); +#endif + +#if (CONFIG_EP93XX_SDRAM_NUM_BANKS == 4) + PROGRAM_MODE_REG(3); +#endif +} diff --git a/board/edb93xx/sdram_cfg.h b/board/edb93xx/sdram_cfg.h new file mode 100644 index 0000000..7babee8 --- /dev/null +++ b/board/edb93xx/sdram_cfg.h @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2009 Matthias Kaehlcke + * + * Copyright (C) 2006 Dominic Rath + * + * 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 +#include + +#define SDRAM_BASE_ADDR CONFIG_EP93XX_SDRAM_BANK0_BASE + +#ifdef CONFIG_EP93XX_SDCE0_PHYS_OFFSET +#define SDRAM_DEVCFG_REG devcfg0 +#elif defined(CONFIG_EP93XX_SDCE3_SYNC_PHYS_OFFSET) +#define SDRAM_DEVCFG_REG devcfg3 +#else +#error "SDRAM bank configuration" +#endif + +#if defined(CONFIG_MACH_EDB9301) || defined(CONFIG_MACH_EDB9302) ||\ + defined(CONFIG_MACH_EDB9302A) +/* + * 1x Samsung K4S561632C-TC/L75 4M x 16bit x 4 banks SDRAM + * + * CLK cycle time min: + * @ CAS latency = 3: 7.5ns + * @ CAS latency = 2: 10ns + * We're running at 66MHz (15ns cycle time) external bus speed (HCLK), + * so it's safe to use CAS latency = 2 + * + * RAS-to-CAS delay min: + * 20ns + * At 15ns cycle time, we use RAS-to-CAS delay = 2 + * + * SROMLL = 1: Swap BA[1:0] with A[13:12], making the SDRAM appear + * as four blocks of 8MB size, instead of eight blocks of 4MB size: + * + * EDB9301/EDB9302: + * + * 0x00000000 - 0x007fffff + * 0x01000000 - 0x017fffff + * 0x04000000 - 0x047fffff + * 0x05000000 - 0x057fffff + * + * + * EDB9302a: + * + * 0xc0000000 - 0xc07fffff + * 0xc1000000 - 0xc17fffff + * 0xc4000000 - 0xc47fffff + * 0xc5000000 - 0xc57fffff + * + * BANKCOUNT = 1: This is a device with four banks + */ + +#define SDRAM_DEVCFG_VAL (SDRAM_DEVCFG_BANKCOUNT | \ + SDRAM_DEVCFG_SROMLL | \ + SDRAM_DEVCFG_CASLAT_2 | \ + SDRAM_DEVCFG_RASTOCAS_2 | \ + SDRAM_DEVCFG_EXTBUSWIDTH) + +/* + * 16 bit ext. bus + * + * A[22:09] is output as SYA[13:0] + * CAS latency: 2 + * Burst type: sequential + * Burst length: 8 (required for 16 bit ext. bus) + * SYA[13:0] = 0x0023 + */ +#define SDRAM_MODE_REG_VAL 0x4600 + +#define SDRAM_BANK_SEL_0 0x00000000 /* A[22:21] = b00 */ +#define SDRAM_BANK_SEL_1 0x00200000 /* A[22:21] = b01 */ +#define SDRAM_BANK_SEL_2 0x00400000 /* A[22:21] = b10 */ +#define SDRAM_BANK_SEL_3 0x00600000 /* A[22:21] = b11 */ + +#elif defined(CONFIG_MACH_EDB9307) || defined(CONFIG_MACH_EDB9307A) ||\ + defined CONFIG_MACH_EDB9312 || defined(CONFIG_MACH_EDB9315) ||\ + defined(CONFIG_MACH_EDB9315A) +/* + * 2x Samsung K4S561632C-TC/L75 4M x 16bit x 4 banks SDRAM + * + * CLK cycle time min: + * @ CAS latency = 3: 7.5ns + * @ CAS latency = 2: 10ns + * We're running at 100MHz (10ns cycle time) external bus speed (HCLK), + * so it's safe to use CAS latency = 2 + * + * RAS-to-CAS delay min: + * 20ns + * At 10ns cycle time, we use RAS-to-CAS delay = 2 + * + * EDB9307, EDB9312, EDB9315: + * + * 0x00000000 - 0x01ffffff + * 0x04000000 - 0x05ffffff + * + * + * EDB9307a, EDB9315a: + * + * 0xc0000000 - 0xc1ffffff + * 0xc4000000 - 0xc5ffffff + */ + +#define SDRAM_DEVCFG_VAL (SDRAM_DEVCFG_BANKCOUNT | \ + SDRAM_DEVCFG_SROMLL | \ + SDRAM_DEVCFG_CASLAT_2 | \ + SDRAM_DEVCFG_RASTOCAS_2) + +/* + * 32 bit ext. bus + * + * A[23:10] is output as SYA[13:0] + * CAS latency: 2 + * Burst type: sequential + * Burst length: 4 + * SYA[13:0] = 0x0022 + */ +#define SDRAM_MODE_REG_VAL 0x8800 + +#define SDRAM_BANK_SEL_0 0x00000000 /* A[23:22] = b00 */ +#define SDRAM_BANK_SEL_1 0x00400000 /* A[23:22] = b01 */ +#define SDRAM_BANK_SEL_2 0x00800000 /* A[23:22] = b10 */ +#define SDRAM_BANK_SEL_3 0x00c00000 /* A[23:22] = b11 */ +#endif -- 1.6.3.1 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox