obj-y += cpu.o
obj-y += syslib.o
-ifneq ($(CONFIG_AM43XX)$(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TEGRA)$(CONFIG_MX6)$(CONFIG_TI81XX),)
+ifneq ($(CONFIG_AM43XX)$(CONFIG_AM33XX)$(CONFIG_OMAP44XX)$(CONFIG_OMAP54XX)$(CONFIG_TEGRA)$(CONFIG_MX6)$(CONFIG_TI81XX)$(CONFIG_AT91FAMILY),)
ifneq ($(CONFIG_SKIP_LOWLEVEL_INIT),y)
obj-y += lowlevel_init.o
endif
# SPDX-License-Identifier: GPL-2.0+
#
-obj-$(CONFIG_SPL_BUILD) += mpddrc.o
+obj-$(CONFIG_SPL_BUILD) += mpddrc.o spl.o
--- /dev/null
+/*
+ * Copyright (C) 2013 Atmel Corporation
+ * Bo Shen <voice.shen@atmel.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_wdt.h>
+#include <asm/arch/clk.h>
+#include <spl.h>
+
+static void at91_disable_wdt(void)
+{
+ struct at91_wdt *wdt = (struct at91_wdt *)ATMEL_BASE_WDT;
+
+ writel(AT91_WDT_MR_WDDIS, &wdt->mr);
+}
+
+void at91_plla_init(u32 pllar)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+ writel(pllar, &pmc->pllar);
+ while (!(readl(&pmc->sr) & (AT91_PMC_LOCKA | AT91_PMC_MCKRDY)))
+ ;
+}
+
+void at91_mck_init(u32 mckr)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+ u32 tmp;
+
+ tmp = readl(&pmc->mckr);
+ tmp &= ~(AT91_PMC_MCKR_PRES_MASK |
+ AT91_PMC_MCKR_MDIV_MASK |
+ AT91_PMC_MCKR_PLLADIV_2);
+ tmp |= mckr & (AT91_PMC_MCKR_PRES_MASK |
+ AT91_PMC_MCKR_MDIV_MASK |
+ AT91_PMC_MCKR_PLLADIV_2);
+ writel(tmp, &pmc->mckr);
+
+ while (!(readl(&pmc->sr) & AT91_PMC_MCKRDY))
+ ;
+}
+
+
+u32 spl_boot_device(void)
+{
+#ifdef CONFIG_SYS_USE_MMC
+ return BOOT_DEVICE_MMC1;
+#endif
+ return BOOT_DEVICE_NONE;
+}
+
+u32 spl_boot_mode(void)
+{
+ switch (spl_boot_device()) {
+#ifdef CONFIG_SYS_USE_MMC
+ case BOOT_DEVICE_MMC1:
+ return MMCSD_MODE_FAT;
+ break;
+#endif
+ case BOOT_DEVICE_NONE:
+ default:
+ hang();
+ }
+}
+
+void s_init(void)
+{
+ /* disable watchdog */
+ at91_disable_wdt();
+
+ /* PMC configuration */
+ at91_pmc_init();
+
+ at91_clock_init(CONFIG_SYS_AT91_MAIN_CLOCK);
+
+ timer_init();
+
+ board_early_init_f();
+
+ preloader_console_init();
+
+ mem_init();
+}
--- /dev/null
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
+ *
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ * Aneesh V <aneesh@ti.com>
+ *
+ * (C) 2013 Atmel Corporation
+ * Bo Shen <voice.shen@atmel.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE, \
+ LENGTH = CONFIG_SPL_MAX_SIZE }
+MEMORY { .sdram : ORIGIN = CONFIG_SPL_BSS_START_ADDR, \
+ LENGTH = CONFIG_SPL_BSS_MAX_SIZE }
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+ .text :
+ {
+ __start = .;
+ arch/arm/cpu/armv7/start.o (.text*)
+ *(.text*)
+ } >.sram
+
+ . = ALIGN(4);
+ .rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram
+
+ . = ALIGN(4);
+ .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
+
+ . = ALIGN(4);
+ __image_copy_end = .;
+ _end = .;
+
+ .bss :
+ {
+ . = ALIGN(4);
+ __bss_start = .;
+ *(.bss*)
+ . = ALIGN(4);
+ __bss_end = .;
+ } >.sdram
+}
void at91_udp_hw_init(void);
void at91_uhp_hw_init(void);
void at91_lcd_hw_init(void);
+void at91_plla_init(u32 pllar);
+void at91_mck_init(u32 mckr);
+void at91_pmc_init(void);
+void mem_init(void);
#endif /* AT91_COMMON_H */
--- /dev/null
+/*
+ * Copyright (C) 2013 Atmel Corporation
+ * Bo Shen <voice.shen@atmel.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _ASM_ARCH_SPL_H_
+#define _ASM_ARCH_SPL_H_
+
+enum {
+ BOOT_DEVICE_NONE,
+#ifdef CONFIG_SYS_USE_MMC
+ BOOT_DEVICE_MMC1,
+ BOOT_DEVICE_MMC2,
+ BOOT_DEVICE_MMC2_2,
+#endif
+};
+
+#endif
#include <micrel.h>
#include <net.h>
#include <netdev.h>
+#include <spl.h>
+#include <asm/arch/atmel_mpddrc.h>
+#include <asm/arch/at91_wdt.h>
#ifdef CONFIG_USB_GADGET_ATMEL_USBA
#include <asm/arch/atmel_usba_udc.h>
}
}
#endif /* CONFIG_ATMEL_SPI */
+
+/* SPL */
+#ifdef CONFIG_SPL_BUILD
+void spl_board_init(void)
+{
+#ifdef CONFIG_SYS_USE_MMC
+ sama5d3xek_mci_hw_init();
+#endif
+}
+
+static void ddr2_conf(struct atmel_mpddr *ddr2)
+{
+ ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
+
+ ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
+ ATMEL_MPDDRC_CR_NR_ROW_14 |
+ ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
+ ATMEL_MPDDRC_CR_ENRDM_ON |
+ ATMEL_MPDDRC_CR_NB_8BANKS |
+ ATMEL_MPDDRC_CR_NDQS_DISABLED |
+ ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
+ ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
+ /*
+ * As the DDR2-SDRAm device requires a refresh time is 7.8125us
+ * when DDR run at 133MHz, so it needs (7.8125us * 133MHz / 10^9) clocks
+ */
+ ddr2->rtr = 0x411;
+
+ ddr2->tpr0 = (6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
+ 8 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR0_TRP_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET);
+
+ ddr2->tpr1 = (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET |
+ 200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET |
+ 28 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
+ 26 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET);
+
+ ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET |
+ 2 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET |
+ 7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
+ 8 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
+}
+
+void mem_init(void)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+ struct atmel_mpddr ddr2;
+
+ ddr2_conf(&ddr2);
+
+ /* enable MPDDR clock */
+ at91_periph_clk_enable(ATMEL_ID_MPDDRC);
+ writel(0x4, &pmc->scer);
+
+ /* DDRAM2 Controller initialize */
+ ddr2_init(ATMEL_BASE_DDRCS, &ddr2);
+}
+
+void at91_pmc_init(void)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+ u32 tmp;
+
+ tmp = AT91_PMC_PLLAR_29 |
+ AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
+ AT91_PMC_PLLXR_MUL(43) |
+ AT91_PMC_PLLXR_DIV(1);
+ at91_plla_init(tmp);
+
+ writel(0x3 << 8, &pmc->pllicpr);
+
+ tmp = AT91_PMC_MCKR_MDIV_4 |
+ AT91_PMC_MCKR_CSS_PLLA;
+ at91_mck_init(tmp);
+}
+#endif
#define CONFIG_AT91FAMILY
#define CONFIG_ARCH_CPU_INIT
+#ifndef CONFIG_SPL_BUILD
#define CONFIG_SKIP_LOWLEVEL_INIT
+#endif
+
#define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_DISPLAY_CPUINFO
#define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_DDRCS
#define CONFIG_SYS_SDRAM_SIZE 0x20000000
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_INIT_SP_ADDR 0x310000
+#else
#define CONFIG_SYS_INIT_SP_ADDR \
(CONFIG_SYS_SDRAM_BASE + 4 * 1024 - GENERATED_GBL_DATA_SIZE)
+#endif
/* SerialFlash */
#define CONFIG_CMD_SF
/* Size of malloc() pool */
#define CONFIG_SYS_MALLOC_LEN (1024 * 1024)
+/* SPL */
+#define CONFIG_SPL
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_TEXT_BASE 0x300000
+#define CONFIG_SPL_MAX_SIZE 0x10000
+#define CONFIG_SPL_BSS_START_ADDR 0x20000000
+#define CONFIG_SPL_BSS_MAX_SIZE 0x80000
+#define CONFIG_SYS_SPL_MALLOC_START 0x20080000
+#define CONFIG_SYS_SPL_MALLOC_SIZE 0x80000
+
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_GPIO_SUPPORT
+#define CONFIG_SPL_SERIAL_SUPPORT
+
+#define CONFIG_SPL_BOARD_INIT
+#ifdef CONFIG_SYS_USE_MMC
+#define CONFIG_SPL_LDSCRIPT arch/arm/cpu/at91-common/u-boot-spl.lds
+#define CONFIG_SPL_MMC_SUPPORT
+#define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS 0x400
+#define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR 0x200
+#define CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION 1
+#define CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME "u-boot.img"
+#define CONFIG_SPL_FAT_SUPPORT
+#define CONFIG_SPL_LIBDISK_SUPPORT
+#endif
+
#endif
projects / karo-tx-uboot.git / commitdiff