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Diffstat (limited to 'arch/arm/boards/a9m2410/a9m2410.c')
| -rw-r--r-- | arch/arm/boards/a9m2410/a9m2410.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/arch/arm/boards/a9m2410/a9m2410.c b/arch/arm/boards/a9m2410/a9m2410.c new file mode 100644 index 0000000000..f327f82b7f --- /dev/null +++ b/arch/arm/boards/a9m2410/a9m2410.c @@ -0,0 +1,254 @@ +/* + * Copyright (C) 2009 Juergen Beisert, Pengutronix + * + * 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 + * + */ + +/** + * @file + * @brief a9m2410 Specific Board Initialization routines + * + */ + +#include <common.h> +#include <driver.h> +#include <init.h> +#include <asm/armlinux.h> +#include <asm/mach-types.h> +#include <partition.h> +#include <nand.h> +#include <asm/io.h> +#include <mach/s3c24x0-iomap.h> +#include <mach/s3c24x0-nand.h> + +static struct memory_platform_data ram_pdata = { + .name = "ram0", + .flags = DEVFS_RDWR, +}; + +static struct device_d sdram_dev = { + .name = "ram", + .map_base = CS6_BASE, + .platform_data = &ram_pdata, +}; + +// {"NAND 1MiB 3,3V 8-bit", 0xec, 256, 1, 0x1000, 0}, +static struct s3c24x0_nand_platform_data nand_info = { + .nand_timing = CALC_NFCONF_TIMING(A9M2410_TACLS, A9M2410_TWRPH0, A9M2410_TWRPH1) +}; + +static struct device_d nand_dev = { + .name = "s3c24x0_nand", + .map_base = S3C24X0_NAND_BASE, + .platform_data = &nand_info, +}; + +/* + * SMSC 91C111 network controller on the baseboard + * connected to CS line 1 and interrupt line + * GPIO3, data width is 32 bit + */ +static struct device_d network_dev = { + .name = "smc91c111", + .map_base = CS1_BASE + 0x300, + .size = 16, +}; + +static int a9m2410_devices_init(void) +{ + uint32_t reg; + + /* + * detect the current memory size + * Note: On this card the second SDRAM page is not used + */ + reg = readl(BANKSIZE); + + switch (reg &= 0x7) { + case 0: + sdram_dev.size = 32 * 1024 * 1024; + break; + case 1: + sdram_dev.size = 64 * 1024 * 1024; + break; + case 2: + sdram_dev.size = 128 * 1024 * 1024; + break; + case 4: + sdram_dev.size = 2 * 1024 * 1024; + break; + case 5: + sdram_dev.size = 4 * 1024 * 1024; + break; + case 6: + sdram_dev.size = 8 * 1024 * 1024; + break; + case 7: + sdram_dev.size = 16 * 1024 * 1024; + break; + } + + /* ---------- configure the GPIOs ------------- */ + writel(0x007FFFFF, GPACON); + writel(0x00000000, GPCCON); + writel(0x00000000, GPCUP); + writel(0x00000000, GPDCON); + writel(0x00000000, GPDUP); + writel(0xAAAAAAAA, GPECON); + writel(0x0000E03F, GPEUP); + writel(0x00000000, GPBCON); /* all inputs */ + writel(0x00000007, GPBUP); /* pullup disabled for GPB0..3 */ + writel(0x00009000, GPFCON); /* GPF7 CLK_INT#, GPF6 Debug-LED */ + writel(0x000000FF, GPFUP); + writel(readl(GPGDAT) | 0x0010, GPGDAT); /* switch off LCD backlight */ + writel(0xFF00A938, GPGCON); /* switch off USB device */ + writel(0x0000F000, GPGUP); + writel(readl(GPHDAT) | 0x100, GPHDAT); /* switch BOOTINT/GPIO_ON# to high */ + writel(0x000007FF, GPHUP); + writel(0x0029FAAA, GPHCON); + /* + * USB port1 normal, USB port0 normal, USB1 pads for device + * PCLK output on CLKOUT0, UPLL CLK output on CLKOUT1, + * 2nd SDRAM bank off (only bank 1 is used) + */ + writel(0x40140, MISCCR); + + /* ----------- configure the access to the outer space ---------- */ + reg = readl(BWSCON); + + /* CS#1 to access the network controller */ + reg &= ~0xf0; + reg |= 0xe0; + writel(0x1350, BANKCON1); + + /* CS#2 to the dual 16550 UART */ + reg &= ~0xf00; + reg |= 0x400; + writel(0x0d50, BANKCON2); + + writel(reg, BWSCON); + + /* release the reset signal to the network and UART device */ + reg = readl(MISCCR); + reg |= 0x10000; + writel(reg, MISCCR); + + /* ----------- the devices the boot loader should work with -------- */ + register_device(&nand_dev); + register_device(&sdram_dev); + register_device(&network_dev); + +#ifdef CONFIG_NAND + /* ----------- add some vital partitions -------- */ + devfs_add_partition("nand0", 0x00000, 0x40000, PARTITION_FIXED, "self_raw"); + dev_add_bb_dev("self_raw", "self0"); + + devfs_add_partition("nand0", 0x40000, 0x20000, PARTITION_FIXED, "env_raw"); + dev_add_bb_dev("env_raw", "env0"); +#endif + + armlinux_add_dram(&sdram_dev); + armlinux_set_bootparams((void *)sdram_dev.map_base + 0x100); + armlinux_set_architecture(MACH_TYPE_A9M2410); + + return 0; +} + +device_initcall(a9m2410_devices_init); + +#ifdef CONFIG_S3C24XX_NAND_BOOT +void __bare_init nand_boot(void) +{ + s3c24x0_nand_load_image((void *)TEXT_BASE, 256 * 1024, 0, 512); +} +#endif + +static struct device_d a9m2410_serial_device = { + .name = "s3c24x0_serial", + .map_base = UART1_BASE, + .size = UART1_SIZE, +}; + +static int a9m2410_console_init(void) +{ + register_device(&a9m2410_serial_device); + return 0; +} + +console_initcall(a9m2410_console_init); + +/** @page a9m2410 DIGI's a9m2410 + +This CPU card is based on a Samsung S3C2410 CPU. The card is shipped with: + +- S3C2410\@200 MHz (ARM920T/ARMv4T) +- 12MHz crystal reference +- SDRAM 32 MiB + - Samsung K4M563233E-EE1H + - 2M x 32Bit x 4 Banks Mobile SDRAM + - 90 pin FBGA + - CL3\@133MHz, CL2\@100MHz (CAS/RAS delay 19ns) + - four banks + - 32 bit data bits + - row address size is 11 + - Row cycle time: 69ns + - collumn address size is 9 bits + - Extended temperature range (-25°C...85°C) + - 64ms refresh period (4k) +- NAND Flash 32 MiB + - Samsung KM29U256T + - 32MiB 3,3V 8-bit + - ID: 0xEC, 0x75, 0x??, 0xBD + - 30ns/40ns/20ns +- I2C interface, 100KHz and 400KHz + - Real Time Clock + - Dallas DS1337 + - address 0x68 + - EEPROM + - ST M24LC64 + - address 0x50 + - 16bit addressing +- LCD interface +- Touch Screen interface +- Camera interface +- I2S interface +- AC97 Audio-CODEC interface +- SD card interface +- 3 serial RS232 interfaces +- Host and device USB interface, USB1.1 compliant +- Ethernet interface + - 10Mbps, Cirrus Logic, CS8900A (on the CPU card) or + - 10/100Mbps, SMSC 91C111 (on the baseboard) +- SPI interface +- JTAG interface + +How to get the binary image: + +Using the default configuration: + +@code +make ARCH=arm a9m2410_defconfig +@endcode + +Build the binary image: + +@code +make ARCH=arm CROSS_COMPILE=armv4compiler +@endcode + +@note replace the armv4compiler with your ARM v4 cross compiler. +*/ |