diff options
Diffstat (limited to 'roms/u-boot/board/atmel/sama5d27_wlsom1_ek')
4 files changed, 287 insertions, 0 deletions
diff --git a/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/Kconfig b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/Kconfig new file mode 100644 index 000000000..4b192b084 --- /dev/null +++ b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/Kconfig @@ -0,0 +1,15 @@ +if TARGET_SAMA5D27_WLSOM1_EK + +config SYS_BOARD + default "sama5d27_wlsom1_ek" + +config SYS_VENDOR + default "atmel" + +config SYS_SOC + default "at91" + +config SYS_CONFIG_NAME + default "sama5d27_wlsom1_ek" + +endif diff --git a/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/MAINTAINERS b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/MAINTAINERS new file mode 100644 index 000000000..ff68cf01a --- /dev/null +++ b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/MAINTAINERS @@ -0,0 +1,8 @@ +SAMA5D27 WLSOM1 EK BOARD +M: Nicolas Ferre <nicolas.ferre@microchip.com> +M: Eugen Hristev <eugen.hristev@microchip.com> +S: Maintained +F: board/atmel/sama5d27_wlsom1_ek/ +F: include/configs/sama5d27_wlsom1_ek.h +F: configs/sama5d27_wlsom1_ek_mmc_defconfig +F: configs/sama5d27_wlsom1_ek_qspiflash_defconfig diff --git a/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/Makefile b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/Makefile new file mode 100644 index 000000000..cf827ae5e --- /dev/null +++ b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries +# +# Author: Nicolas Ferre <nicolas.ferre@microcihp.com> + +obj-y += sama5d27_wlsom1_ek.o diff --git a/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c new file mode 100644 index 000000000..32d51bba7 --- /dev/null +++ b/roms/u-boot/board/atmel/sama5d27_wlsom1_ek/sama5d27_wlsom1_ek.c @@ -0,0 +1,257 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries + * + * Author: Nicolas Ferre <nicolas.ferre@microcihp.com> + */ + +#include <common.h> +#include <debug_uart.h> +#include <init.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/atmel_pio4.h> +#include <asm/arch/atmel_mpddrc.h> +#include <asm/arch/atmel_sdhci.h> +#include <asm/arch/clk.h> +#include <asm/arch/gpio.h> +#include <asm/arch/sama5d2.h> + +extern void at91_pda_detect(void); + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ +#ifdef CONFIG_DM_VIDEO + at91_video_show_board_info(); +#endif + at91_pda_detect(); + return 0; +} +#endif + +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +static void board_uart0_hw_init(void) +{ + atmel_pio4_set_c_periph(AT91_PIO_PORTB, 26, ATMEL_PIO_PUEN_MASK); /* URXD0 */ + atmel_pio4_set_c_periph(AT91_PIO_PORTB, 27, 0); /* UTXD0 */ + + at91_periph_clk_enable(ATMEL_ID_UART0); +} + +void board_debug_uart_init(void) +{ + board_uart0_hw_init(); +} +#endif + +#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f(void) +{ +#ifdef CONFIG_DEBUG_UART + debug_uart_init(); +#endif + + return 0; +} +#endif + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + return 0; +} + +#ifdef CONFIG_MISC_INIT_R +int misc_init_r(void) +{ +#ifdef CONFIG_SPI_FLASH_SFDP_SUPPORT + at91_spi_nor_set_ethaddr(); +#endif + return 0; +} +#endif + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_SIZE); + return 0; +} + +/* SPL */ +#ifdef CONFIG_SPL_BUILD + +static void board_leds_init(void) +{ + atmel_pio4_set_pio_output(AT91_PIO_PORTA, 6, 0); /* RED */ + atmel_pio4_set_pio_output(AT91_PIO_PORTA, 7, 1); /* GREEN */ + atmel_pio4_set_pio_output(AT91_PIO_PORTA, 8, 0); /* BLUE */ +} + +#ifdef CONFIG_SD_BOOT +void spl_mmc_init(void) +{ + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 1, 0); /* CMD */ + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 2, 0); /* DAT0 */ + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 3, 0); /* DAT1 */ + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 4, 0); /* DAT2 */ + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 5, 0); /* DAT3 */ + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 0, 0); /* CK */ + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 13, 0); /* CD */ + + at91_periph_clk_enable(ATMEL_ID_SDMMC0); +} +#endif + +#ifdef CONFIG_QSPI_BOOT +void spl_qspi_init(void) +{ + atmel_pio4_set_d_periph(AT91_PIO_PORTB, 5, 0); /* SCK */ + atmel_pio4_set_d_periph(AT91_PIO_PORTB, 6, 0); /* CS */ + atmel_pio4_set_d_periph(AT91_PIO_PORTB, 7, 0); /* IO0 */ + atmel_pio4_set_d_periph(AT91_PIO_PORTB, 8, 0); /* IO1 */ + atmel_pio4_set_d_periph(AT91_PIO_PORTB, 9, 0); /* IO2 */ + atmel_pio4_set_d_periph(AT91_PIO_PORTB, 10, 0); /* IO3 */ + + at91_periph_clk_enable(ATMEL_ID_QSPI1); +} +#endif + +void spl_board_init(void) +{ + board_leds_init(); +#ifdef CONFIG_SD_BOOT + spl_mmc_init(); +#endif +#ifdef CONFIG_QSPI_BOOT + spl_qspi_init(); +#endif +} + +void spl_display_print(void) +{ +} + +static void ddrc_conf(struct atmel_mpddrc_config *ddrc) +{ + ddrc->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_LPDDR2_SDRAM); + + ddrc->cr = (ATMEL_MPDDRC_CR_NC_COL_9 | + ATMEL_MPDDRC_CR_NR_ROW_14 | + ATMEL_MPDDRC_CR_CAS_DDR_CAS3 | + ATMEL_MPDDRC_CR_ZQ_SHORT | + ATMEL_MPDDRC_CR_NB_8BANKS | + ATMEL_MPDDRC_CR_DECOD_INTERLEAVED | + ATMEL_MPDDRC_CR_UNAL_SUPPORTED); + + ddrc->lpddr23_lpr = ATMEL_MPDDRC_LPDDR23_LPR_DS(0x3); + + /* + * The AD220032D average time between REFRESH commands (Trefi): 3.9us + * 3.9us * 164MHz = 639.6 = 0x27F. + */ + ddrc->rtr = 0x27f; + /* Enable Adjust Refresh Rate */ + ddrc->rtr |= ATMEL_MPDDRC_RTR_ADJ_REF; + + ddrc->tpr0 = ((7 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET) | + (3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET) | + (4 << ATMEL_MPDDRC_TPR0_TWR_OFFSET) | + (11 << ATMEL_MPDDRC_TPR0_TRC_OFFSET) | + (4 << ATMEL_MPDDRC_TPR0_TRP_OFFSET) | + (2 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET) | + (2 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET) | + (5 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET)); + + ddrc->tpr1 = ((21 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET) | + (0 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET) | + (23 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET) | + (2 << ATMEL_MPDDRC_TPR1_TXP_OFFSET)); + + ddrc->tpr2 = ((0 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET) | + (0 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET) | + (4 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET) | + (2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET) | + (10 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET)); + + ddrc->tim_cal = ATMEL_MPDDRC_CALR_ZQCS(15); + + /* + * According to the sama5d2 datasheet and the following values: + * T Sens = 0.75%/C, V Sens = 0.2%/mV, T driftrate = 1C/sec and V driftrate = 15 mV/s + * Warning: note that the values T driftrate and V driftrate are dependent on + * the application environment. + * ZQCS period is 1.5 / ((0.75 x 1) + (0.2 x 15)) = 0.4s + * If Trefi is 3.9us, we have: 400000 / 3.9 = 102564: we can maximize + * this timer to 0xFFFE. + */ + ddrc->cal_mr4 = ATMEL_MPDDRC_CAL_MR4_COUNT_CAL(0xFFFE); + + /* + * MR4 Read interval is dependent on the application environment. + * Here, we want to maximize this value as temperature is supposed + * to vary slowly in the application chosen. + * If Trefi is 3.9us, we have: + * (0xFFFE) 65534 x 3.9 = 0.25s between MR4 reads. + */ + ddrc->cal_mr4 |= ATMEL_MPDDRC_CAL_MR4_MR4R(0xFFFE); +} + +void mem_init(void) +{ + struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC; + struct atmel_mpddr *mpddrc = (struct atmel_mpddr *)ATMEL_BASE_MPDDRC; + struct atmel_mpddrc_config ddrc_config; + u32 reg; + + at91_periph_clk_enable(ATMEL_ID_MPDDRC); + writel(AT91_PMC_DDR, &pmc->scer); + + ddrc_conf(&ddrc_config); + + reg = readl(&mpddrc->io_calibr); + reg &= ~ATMEL_MPDDRC_IO_CALIBR_RDIV; + reg |= ATMEL_MPDDRC_IO_CALIBR_LPDDR2_RZQ_48; + reg &= ~ATMEL_MPDDRC_IO_CALIBR_TZQIO; + reg |= ATMEL_MPDDRC_IO_CALIBR_TZQIO_(100); + writel(reg, &mpddrc->io_calibr); + + writel(ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_ONE_CYCLE, + &mpddrc->rd_data_path); + + lpddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddrc_config); +} + +void at91_pmc_init(void) +{ + u32 tmp; + + /* + * while coming from the ROM code, we run on PLLA @ 492 MHz / 164 MHz + * so we need to slow down and configure MCKR accordingly. + * This is why we have a special flavor of the switching function. + */ + tmp = AT91_PMC_MCKR_PLLADIV_2 | + AT91_PMC_MCKR_MDIV_3 | + AT91_PMC_MCKR_CSS_MAIN; + at91_mck_init_down(tmp); + + tmp = AT91_PMC_PLLAR_29 | + AT91_PMC_PLLXR_PLLCOUNT(0x3f) | + AT91_PMC_PLLXR_MUL(40) | + AT91_PMC_PLLXR_DIV(1); + at91_plla_init(tmp); + + 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 |