diff options
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | board/timll/devkit3250/Makefile | 1 | ||||
| -rw-r--r-- | board/timll/devkit3250/devkit3250_spl.c | 68 | ||||
| -rw-r--r-- | configs/devkit3250_defconfig | 1 | ||||
| -rw-r--r-- | include/configs/devkit3250.h | 53 |
5 files changed, 124 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 8b8269f..f2eb09f 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -121,6 +121,7 @@ config TARGET_MAXBCM config TARGET_DEVKIT3250 bool "Support devkit3250" select CPU_ARM926EJS + select SUPPORT_SPL config TARGET_WORK_92105 bool "Support work_92105" diff --git a/board/timll/devkit3250/Makefile b/board/timll/devkit3250/Makefile index 4722986..74d5cd3 100644 --- a/board/timll/devkit3250/Makefile +++ b/board/timll/devkit3250/Makefile @@ -6,3 +6,4 @@ # obj-y := devkit3250.o +obj-$(CONFIG_SPL_BUILD) += devkit3250_spl.o diff --git a/board/timll/devkit3250/devkit3250_spl.c b/board/timll/devkit3250/devkit3250_spl.c new file mode 100644 index 0000000..bf52698 --- /dev/null +++ b/board/timll/devkit3250/devkit3250_spl.c @@ -0,0 +1,68 @@ +/* + * Timll DevKit3250 board support, SPL board configuration + * + * (C) Copyright 2015 Vladimir Zapolskiy <vz@mleia.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/cpu.h> +#include <asm/arch/emc.h> +#include <asm/arch-lpc32xx/gpio.h> +#include <spl.h> + +static struct gpio_regs *gpio = (struct gpio_regs *)GPIO_BASE; + +/* + * SDRAM K4S561632N-LC60 settings are selected in assumption that + * SDRAM clock may be set up to 166 MHz, however at the moment + * it is 104 MHz. Most delay values are converted to be a multiple of + * base clock, and precise pinned values are not needed here. + */ +struct emc_dram_settings dram_64mb = { + .cmddelay = 0x0001C000, + .config0 = 0x00005682, + .rascas0 = 0x00000302, + .rdconfig = 0x00000011, /* undocumented but crucial value */ + + .trp = 83333333, + .tras = 23809524, + .tsrex = 12500000, + .twr = 83000000, /* tWR = tRDL = 2 CLK */ + .trc = 15384616, + .trfc = 15384616, + .txsr = 12500000, + .trrd = 1, + .tmrd = 1, + .tcdlr = 0, + + .refresh = 130000, /* 800 clock cycles */ + + .mode = 0x00018000, + .emode = 0x02000000, +}; + +void spl_board_init(void) +{ + /* First of all silence buzzer controlled by GPO_20 */ + writel((1 << 20), &gpio->p3_outp_clr); + + lpc32xx_uart_init(CONFIG_SYS_LPC32XX_UART); + preloader_console_init(); + + ddr_init(&dram_64mb); + + /* + * NAND initialization is done by nand_init(), + * here just enable NAND SLC clocks + */ + lpc32xx_slc_nand_init(); +} + +u32 spl_boot_device(void) +{ + return BOOT_DEVICE_NAND; +} diff --git a/configs/devkit3250_defconfig b/configs/devkit3250_defconfig index 56d719f..7246da5 100644 --- a/configs/devkit3250_defconfig +++ b/configs/devkit3250_defconfig @@ -1,5 +1,6 @@ CONFIG_ARM=y CONFIG_TARGET_DEVKIT3250=y +CONFIG_SPL=y # CONFIG_CMD_FPGA is not set # CONFIG_CMD_SETEXPR is not set CONFIG_DM=y diff --git a/include/configs/devkit3250.h b/include/configs/devkit3250.h index b8218b5..cc6a53e 100644 --- a/include/configs/devkit3250.h +++ b/include/configs/devkit3250.h @@ -21,7 +21,9 @@ #define CONFIG_SYS_ICACHE_OFF #define CONFIG_SYS_DCACHE_OFF +#if !defined(CONFIG_SPL_BUILD) #define CONFIG_SKIP_LOWLEVEL_INIT +#endif #define CONFIG_BOARD_EARLY_INIT_F /* @@ -174,6 +176,57 @@ #define CONFIG_LOADADDR 0x80008000 /* + * SPL specific defines + */ +/* SPL will be executed at offset 0 */ +#define CONFIG_SPL_TEXT_BASE 0x00000000 + +/* SPL will use SRAM as stack */ +#define CONFIG_SPL_STACK 0x0000FFF8 +#define CONFIG_SPL_BOARD_INIT + +/* Use the framework and generic lib */ +#define CONFIG_SPL_FRAMEWORK +#define CONFIG_SPL_LIBGENERIC_SUPPORT +#define CONFIG_SPL_LIBCOMMON_SUPPORT + +/* SPL will use serial */ +#define CONFIG_SPL_SERIAL_SUPPORT + +/* SPL loads an image from NAND */ +#define CONFIG_SPL_NAND_SIMPLE +#define CONFIG_SPL_NAND_RAW_ONLY +#define CONFIG_SPL_NAND_SUPPORT +#define CONFIG_SPL_NAND_DRIVERS + +#define CONFIG_SYS_NAND_BLOCK_SIZE 0x20000 +#define CONFIG_SYS_NAND_PAGE_SIZE 0x800 +#define CONFIG_SYS_NAND_ECCSIZE 0x100 +#define CONFIG_SYS_NAND_OOBSIZE 64 +#define CONFIG_SYS_NAND_ECCPOS { 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_ECCBYTES 3 +#define CONFIG_SYS_NAND_PAGE_COUNT 64 +#define CONFIG_SYS_NAND_BAD_BLOCK_POS NAND_LARGE_BADBLOCK_POS + +#define CONFIG_SPL_NAND_ECC +#define CONFIG_SPL_NAND_SOFTECC + +#define CONFIG_SPL_MAX_SIZE 0x20000 +#define CONFIG_SPL_PAD_TO CONFIG_SPL_MAX_SIZE + +/* U-Boot will be 0x60000 bytes, loaded and run at CONFIG_SYS_TEXT_BASE */ +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x40000 +#define CONFIG_SYS_NAND_U_BOOT_SIZE 0x60000 + +#define CONFIG_SYS_NAND_U_BOOT_START CONFIG_SYS_TEXT_BASE +#define CONFIG_SYS_NAND_U_BOOT_DST CONFIG_SYS_TEXT_BASE + +/* See common/spl/spl.c spl_set_header_raw_uboot() */ +#define CONFIG_SYS_MONITOR_LEN CONFIG_SYS_NAND_U_BOOT_SIZE + +/* * Include SoC specific configuration */ #include <asm/arch/config.h> |