The sama5d4ek support boot up from NAND flash, SD/MMC card and also the SPI flash.
Signed-off-by: Bo Shen voice.shen@atmel.com ---
arch/arm/Kconfig | 1 + board/atmel/sama5d4ek/sama5d4ek.c | 85 +++++++++++++++++++++++++++++++++++ configs/sama5d4ek_mmc_defconfig | 1 + configs/sama5d4ek_nandflash_defconfig | 1 + configs/sama5d4ek_spiflash_defconfig | 1 + include/configs/sama5d4ek.h | 56 +++++++++++++++++++++++ 6 files changed, 145 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 0982117..091d615 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -518,6 +518,7 @@ config TARGET_SAMA5D4_XPLAINED config TARGET_SAMA5D4EK bool "Support sama5d4ek" select CPU_V7 + select SUPPORT_SPL
config TARGET_BCM28155_AP bool "Support bcm28155_ap" diff --git a/board/atmel/sama5d4ek/sama5d4ek.c b/board/atmel/sama5d4ek/sama5d4ek.c index e014e0a..f8cff68 100644 --- a/board/atmel/sama5d4ek/sama5d4ek.c +++ b/board/atmel/sama5d4ek/sama5d4ek.c @@ -10,6 +10,7 @@ #include <asm/arch/at91_common.h> #include <asm/arch/at91_pmc.h> #include <asm/arch/at91_rstc.h> +#include <asm/arch/atmel_mpddrc.h> #include <asm/arch/atmel_usba_udc.h> #include <asm/arch/gpio.h> #include <asm/arch/clk.h> @@ -326,3 +327,87 @@ int board_eth_init(bd_t *bis)
return rc; } + +/* SPL */ +#ifdef CONFIG_SPL_BUILD +void spl_board_init(void) +{ +#ifdef CONFIG_SYS_USE_MMC + sama5d4ek_mci1_hw_init(); +#elif CONFIG_SYS_USE_NANDFLASH + sama5d4ek_nand_hw_init(); +#elif CONFIG_SYS_USE_SERIALFLASH + sama5d4ek_spi0_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_NB_8BANKS | + ATMEL_MPDDRC_CR_NDQS_DISABLED | + ATMEL_MPDDRC_CR_DECOD_INTERLEAVED | + ATMEL_MPDDRC_CR_UNAL_SUPPORTED); + + ddr2->rtr = 0x2b0; + + ddr2->tpr0 = (8 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET | + 3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET | + 3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET | + 10 << ATMEL_MPDDRC_TPR0_TRC_OFFSET | + 3 << 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 | + 25 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET | + 23 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET); + + ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET | + 2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET | + 3 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET | + 2 << 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(87) | + AT91_PMC_PLLXR_DIV(1); + at91_plla_init(tmp); + + writel(0x0 << 8, &pmc->pllicpr); + + tmp = AT91_PMC_MCKR_H32MXDIV | + AT91_PMC_MCKR_PLLADIV_2 | + AT91_PMC_MCKR_MDIV_3 | + AT91_PMC_MCKR_CSS_PLLA; + at91_mck_init(tmp); +} +#endif diff --git a/configs/sama5d4ek_mmc_defconfig b/configs/sama5d4ek_mmc_defconfig index 16a5ed7..aafb4c2 100644 --- a/configs/sama5d4ek_mmc_defconfig +++ b/configs/sama5d4ek_mmc_defconfig @@ -1,3 +1,4 @@ +CONFIG_SPL=y CONFIG_SYS_EXTRA_OPTIONS="SAMA5D4,SYS_USE_MMC" +S:CONFIG_ARM=y +S:CONFIG_TARGET_SAMA5D4EK=y diff --git a/configs/sama5d4ek_nandflash_defconfig b/configs/sama5d4ek_nandflash_defconfig index 8b7fbc3..d430fa7 100644 --- a/configs/sama5d4ek_nandflash_defconfig +++ b/configs/sama5d4ek_nandflash_defconfig @@ -1,3 +1,4 @@ +CONFIG_SPL=y CONFIG_SYS_EXTRA_OPTIONS="SAMA5D4,SYS_USE_NANDFLASH" +S:CONFIG_ARM=y +S:CONFIG_TARGET_SAMA5D4EK=y diff --git a/configs/sama5d4ek_spiflash_defconfig b/configs/sama5d4ek_spiflash_defconfig index 63e9b6c..796fa4b 100644 --- a/configs/sama5d4ek_spiflash_defconfig +++ b/configs/sama5d4ek_spiflash_defconfig @@ -1,3 +1,4 @@ +CONFIG_SPL=y CONFIG_SYS_EXTRA_OPTIONS="SAMA5D4,SYS_USE_SERIALFLASH" +S:CONFIG_ARM=y +S:CONFIG_TARGET_SAMA5D4EK=y diff --git a/include/configs/sama5d4ek.h b/include/configs/sama5d4ek.h index 09ab4d7..9efa096 100644 --- a/include/configs/sama5d4ek.h +++ b/include/configs/sama5d4ek.h @@ -20,7 +20,9 @@
#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
@@ -66,8 +68,12 @@ #define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_DDRCS #define CONFIG_SYS_SDRAM_SIZE 0x20000000
+#ifdef CONFIG_SPL_BUILD +#define CONFIG_SYS_INIT_SP_ADDR 0x210000 +#else #define CONFIG_SYS_INIT_SP_ADDR \ (CONFIG_SYS_SDRAM_BASE + 4 * 1024 - GENERATED_GBL_DATA_SIZE) +#endif
#define CONFIG_SYS_LOAD_ADDR 0x22000000 /* load address */
@@ -219,4 +225,54 @@ /* Size of malloc() pool */ #define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024)
+ +/* SPL */ +#define CONFIG_SPL_FRAMEWORK +#define CONFIG_SPL_TEXT_BASE 0x200000 +#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 +#define CONFIG_SYS_MONITOR_LEN (512 << 10) + +#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_FS_BOOT_PARTITION 1 +#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img" +#define CONFIG_SPL_FAT_SUPPORT +#define CONFIG_SPL_LIBDISK_SUPPORT + +#elif CONFIG_SYS_USE_NANDFLASH +#define CONFIG_SPL_NAND_SUPPORT +#define CONFIG_SPL_NAND_DRIVERS +#define CONFIG_SPL_NAND_BASE +#define CONFIG_PMECC_CAP 8 +#define CONFIG_PMECC_SECTOR_SIZE 512 +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x40000 +#define CONFIG_SYS_NAND_5_ADDR_CYCLE +#define CONFIG_SYS_NAND_PAGE_SIZE 0x1000 +#define CONFIG_SYS_NAND_PAGE_COUNT 64 +#define CONFIG_SYS_NAND_OOBSIZE 224 +#define CONFIG_SYS_NAND_BLOCK_SIZE 0x40000 +#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0x0 +#define CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER + +#elif CONFIG_SYS_USE_SERIALFLASH +#define CONFIG_SPL_SPI_SUPPORT +#define CONFIG_SPL_SPI_FLASH_SUPPORT +#define CONFIG_SPL_SPI_LOAD +#define CONFIG_SYS_SPI_U_BOOT_OFFS 0x20000 + +#endif #endif