--- /dev/null
+/*
+ * 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;
+}
#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
/*
#define CONFIG_BOOTARGS "console=ttyS0,115200n8"
#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
*/
projects / u-boot.git / commitdiff
