diff options
author | Wenyou Yang <wenyou.yang@atmel.com> | 2017-09-13 09:58:54 +0300 |
---|---|---|
committer | Tom Rini <trini@konsulko.com> | 2017-09-14 23:02:46 +0300 |
commit | ce4054bf82d66f5ac51635a4337f15f6aa32ceac (patch) | |
tree | 5519d085105657cb72c5372c2acc76e5a8c49fed /board/atmel | |
parent | 245cbc583db7c1ca52aa32428b8e86f3449d4af2 (diff) | |
download | u-boot-ce4054bf82d66f5ac51635a4337f15f6aa32ceac.tar.xz |
board: atmel: Add SAMA5D27 SOM1 EK board
The SAMA5D27-SiP (System in Package) integrates the SAMA5D2
with 1Gbit DDR2-SDRAM in a single package.
The SAMA5D27 SOM1 embeds a 64Mbit QSPI flash, KSZ8081 Phy and
Mac-address EEPROM.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'board/atmel')
-rw-r--r-- | board/atmel/sama5d27_som1_ek/Kconfig | 15 | ||||
-rw-r--r-- | board/atmel/sama5d27_som1_ek/MAINTAINERS | 6 | ||||
-rw-r--r-- | board/atmel/sama5d27_som1_ek/Makefile | 8 | ||||
-rw-r--r-- | board/atmel/sama5d27_som1_ek/sama5d27_som1_ek.c | 189 |
4 files changed, 218 insertions, 0 deletions
diff --git a/board/atmel/sama5d27_som1_ek/Kconfig b/board/atmel/sama5d27_som1_ek/Kconfig new file mode 100644 index 0000000000..3276214d8c --- /dev/null +++ b/board/atmel/sama5d27_som1_ek/Kconfig @@ -0,0 +1,15 @@ +if TARGET_SAMA5D27_SOM1_EK + +config SYS_BOARD + default "sama5d27_som1_ek" + +config SYS_VENDOR + default "atmel" + +config SYS_SOC + default "at91" + +config SYS_CONFIG_NAME + default "sama5d27_som1_ek" + +endif diff --git a/board/atmel/sama5d27_som1_ek/MAINTAINERS b/board/atmel/sama5d27_som1_ek/MAINTAINERS new file mode 100644 index 0000000000..609583c341 --- /dev/null +++ b/board/atmel/sama5d27_som1_ek/MAINTAINERS @@ -0,0 +1,6 @@ +SAMA5D27 SOM1 EK BOARD +M: Wenyou Yang <wenyou.yang@microchip.com> +S: Maintained +F: board/atmel/sama5d27_som1_ek/ +F: include/configs/sama5d27_som1_ek.h +F: configs/sama5d27_som1_ek_mmc_defconfig diff --git a/board/atmel/sama5d27_som1_ek/Makefile b/board/atmel/sama5d27_som1_ek/Makefile new file mode 100644 index 0000000000..4ab242c4ac --- /dev/null +++ b/board/atmel/sama5d27_som1_ek/Makefile @@ -0,0 +1,8 @@ +# +# Copyright (C) 2017 Microchip Corporation +# Wenyou Yang <wenyou.yang@microchip.com> +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += sama5d27_som1_ek.o diff --git a/board/atmel/sama5d27_som1_ek/sama5d27_som1_ek.c b/board/atmel/sama5d27_som1_ek/sama5d27_som1_ek.c new file mode 100644 index 0000000000..80d772518d --- /dev/null +++ b/board/atmel/sama5d27_som1_ek/sama5d27_som1_ek.c @@ -0,0 +1,189 @@ +/* + * Copyright (C) 2017 Microchip Corporation + * Wenyou.Yang <wenyou.yang@microchip.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <debug_uart.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> + +DECLARE_GLOBAL_DATA_PTR; + +static void board_usb_hw_init(void) +{ + atmel_pio4_set_pio_output(AT91_PIO_PORTB, 10, 1); +} + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ +#ifdef CONFIG_DM_VIDEO + at91_video_show_board_info(); +#endif + return 0; +} +#endif + +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +static void board_uart1_hw_init(void) +{ + atmel_pio4_set_a_periph(AT91_PIO_PORTD, 2, 1); /* URXD1 */ + atmel_pio4_set_a_periph(AT91_PIO_PORTD, 3, 0); /* UTXD1 */ + + at91_periph_clk_enable(ATMEL_ID_UART1); +} + +void board_debug_uart_init(void) +{ + board_uart1_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; + +#ifdef CONFIG_CMD_USB + board_usb_hw_init(); +#endif + + return 0; +} + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_SIZE); + return 0; +} + +#define MAC24AA_MAC_OFFSET 0xfa + +#ifdef CONFIG_MISC_INIT_R +int misc_init_r(void) +{ +#ifdef CONFIG_I2C_EEPROM + at91_set_ethaddr(MAC24AA_MAC_OFFSET); +#endif + return 0; +} +#endif + +/* SPL */ +#ifdef CONFIG_SPL_BUILD +void spl_board_init(void) +{ +} + +static void ddrc_conf(struct atmel_mpddrc_config *ddrc) +{ + ddrc->md = (ATMEL_MPDDRC_MD_DBW_16_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM); + + ddrc->cr = (ATMEL_MPDDRC_CR_NC_COL_10 | + ATMEL_MPDDRC_CR_NR_ROW_13 | + ATMEL_MPDDRC_CR_CAS_DDR_CAS3 | + ATMEL_MPDDRC_CR_DIC_DS | + ATMEL_MPDDRC_CR_ZQ_LONG | + ATMEL_MPDDRC_CR_NB_8BANKS | + ATMEL_MPDDRC_CR_DECOD_INTERLEAVED | + ATMEL_MPDDRC_CR_UNAL_SUPPORTED); + + ddrc->rtr = 0x511; + + ddrc->tpr0 = ((7 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET) | + (3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET) | + (3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET) | + (9 << ATMEL_MPDDRC_TPR0_TRC_OFFSET) | + (3 << ATMEL_MPDDRC_TPR0_TRP_OFFSET) | + (4 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET) | + (4 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET) | + (2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET)); + + ddrc->tpr1 = ((22 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET) | + (23 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET) | + (200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET) | + (3 << ATMEL_MPDDRC_TPR1_TXP_OFFSET)); + + ddrc->tpr2 = ((2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET) | + (8 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET) | + (4 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET) | + (4 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET) | + (8 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET)); +} + +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; + + ddrc_conf(&ddrc_config); + + at91_periph_clk_enable(ATMEL_ID_MPDDRC); + writel(AT91_PMC_DDR, &pmc->scer); + + reg = readl(&mpddrc->io_calibr); + reg &= ~ATMEL_MPDDRC_IO_CALIBR_RDIV; + reg |= ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_55; + reg &= ~ATMEL_MPDDRC_IO_CALIBR_TZQIO; + reg |= ATMEL_MPDDRC_IO_CALIBR_TZQIO_(101); + writel(reg, &mpddrc->io_calibr); + + writel(ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_ONE_CYCLE, + &mpddrc->rd_data_path); + + ddr3_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddrc_config); + + writel(0x3, &mpddrc->cal_mr4); + writel(64, &mpddrc->tim_cal); +} + +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 |