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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/board/atmel/sama5d3xek/sama5d3xek.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/atmel/sama5d3xek/sama5d3xek.c')
-rw-r--r-- | roms/u-boot/board/atmel/sama5d3xek/sama5d3xek.c | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/roms/u-boot/board/atmel/sama5d3xek/sama5d3xek.c b/roms/u-boot/board/atmel/sama5d3xek/sama5d3xek.c new file mode 100644 index 000000000..b6f8dcd91 --- /dev/null +++ b/roms/u-boot/board/atmel/sama5d3xek/sama5d3xek.c @@ -0,0 +1,277 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2012 - 2013 Atmel Corporation + * Bo Shen <voice.shen@atmel.com> + */ + +#include <common.h> +#include <init.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/arch/sama5d3_smc.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/gpio.h> +#include <asm/arch/clk.h> +#include <debug_uart.h> +#include <env.h> +#include <linux/ctype.h> +#include <spl.h> +#include <asm/arch/atmel_mpddrc.h> +#include <asm/arch/at91_wdt.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ +/* + * Miscelaneous platform dependent initialisations + */ + +#ifdef CONFIG_NAND_ATMEL +void sama5d3xek_nand_hw_init(void) +{ + struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; + + at91_periph_clk_enable(ATMEL_ID_SMC); + + /* Configure SMC CS3 for NAND/SmartMedia */ + writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) | + AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1), + &smc->cs[3].setup); + writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) | + AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5), + &smc->cs[3].pulse); + writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8), + &smc->cs[3].cycle); + writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) | + AT91_SMC_TIMINGS_TAR(3) | AT91_SMC_TIMINGS_TRR(4) | + AT91_SMC_TIMINGS_TWB(5) | AT91_SMC_TIMINGS_RBNSEL(3)| + AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings); + writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | + AT91_SMC_MODE_EXNW_DISABLE | +#ifdef CONFIG_SYS_NAND_DBW_16 + AT91_SMC_MODE_DBW_16 | +#else /* CONFIG_SYS_NAND_DBW_8 */ + AT91_SMC_MODE_DBW_8 | +#endif + AT91_SMC_MODE_TDF_CYCLE(3), + &smc->cs[3].mode); +} +#endif + +#ifdef CONFIG_MTD_NOR_FLASH +static void sama5d3xek_nor_hw_init(void) +{ + struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; + + at91_periph_clk_enable(ATMEL_ID_SMC); + + /* Configure SMC CS0 for NOR flash */ + writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | + AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0), + &smc->cs[0].setup); + writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(11) | + AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(11), + &smc->cs[0].pulse); + writel(AT91_SMC_CYCLE_NWE(11) | AT91_SMC_CYCLE_NRD(14), + &smc->cs[0].cycle); + writel(AT91_SMC_TIMINGS_TCLR(0) | AT91_SMC_TIMINGS_TADL(0) | + AT91_SMC_TIMINGS_TAR(0) | AT91_SMC_TIMINGS_TRR(0) | + AT91_SMC_TIMINGS_TWB(0) | AT91_SMC_TIMINGS_RBNSEL(0)| + AT91_SMC_TIMINGS_NFSEL(0), &smc->cs[0].timings); + writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | + AT91_SMC_MODE_EXNW_DISABLE | + AT91_SMC_MODE_DBW_16 | + AT91_SMC_MODE_TDF_CYCLE(1), + &smc->cs[0].mode); + + /* Address pin (A1 ~ A23) configuration */ + at91_pio3_set_a_periph(AT91_PIO_PORTE, 1, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 2, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 3, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 4, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 5, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 6, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 7, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 8, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 9, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 10, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 11, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 12, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 13, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 14, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 15, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 16, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 17, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 18, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 19, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 20, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 21, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 22, 0); + at91_pio3_set_a_periph(AT91_PIO_PORTE, 23, 0); + /* CS0 pin configuration */ + at91_pio3_set_a_periph(AT91_PIO_PORTE, 26, 0); +} +#endif + +#ifdef CONFIG_CMD_USB +static void sama5d3xek_usb_hw_init(void) +{ + at91_set_pio_output(AT91_PIO_PORTD, 25, 0); + at91_set_pio_output(AT91_PIO_PORTD, 26, 0); + at91_set_pio_output(AT91_PIO_PORTD, 27, 0); +} +#endif + +#ifdef CONFIG_GENERIC_ATMEL_MCI +static void sama5d3xek_mci_hw_init(void) +{ + at91_set_pio_output(AT91_PIO_PORTB, 10, 0); /* MCI0 Power */ +} +#endif + +#ifdef CONFIG_DEBUG_UART_BOARD_INIT +void board_debug_uart_init(void) +{ + at91_seriald_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) +{ + /* adress of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + +#ifdef CONFIG_NAND_ATMEL + sama5d3xek_nand_hw_init(); +#endif +#ifdef CONFIG_MTD_NOR_FLASH + sama5d3xek_nor_hw_init(); +#endif +#ifdef CONFIG_CMD_USB + sama5d3xek_usb_hw_init(); +#endif +#ifdef CONFIG_GENERIC_ATMEL_MCI + sama5d3xek_mci_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; +} + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ +#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + const int MAX_STR_LEN = 32; + char name[MAX_STR_LEN], *p; + int i; + + strncpy(name, get_cpu_name(), MAX_STR_LEN); + for (i = 0, p = name; (*p) && (i < MAX_STR_LEN); p++, i++) + *p = tolower(*p); + + strcat(name, "ek.dtb"); + env_set("dtb_name", name); +#endif +#ifdef CONFIG_DM_VIDEO + at91_video_show_board_info(); +#endif + return 0; +} +#endif + +/* SPL */ +#ifdef CONFIG_SPL_BUILD +void spl_board_init(void) +{ +#if CONFIG_NAND_BOOT + sama5d3xek_nand_hw_init(); +#endif +} + +static void ddr2_conf(struct atmel_mpddrc_config *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 atmel_mpddrc_config ddr2; + + ddr2_conf(&ddr2); + + /* Enable MPDDR clock */ + at91_periph_clk_enable(ATMEL_ID_MPDDRC); + at91_system_clk_enable(AT91_PMC_DDR); + + /* DDRAM2 Controller initialize */ + ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2); +} + +void at91_pmc_init(void) +{ + 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); + + at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x3)); + + tmp = AT91_PMC_MCKR_MDIV_4 | + AT91_PMC_MCKR_CSS_PLLA; + at91_mck_init(tmp); +} +#endif |