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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/sam9x60ek/sam9x60ek.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/atmel/sam9x60ek/sam9x60ek.c')
-rw-r--r-- | roms/u-boot/board/atmel/sam9x60ek/sam9x60ek.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/roms/u-boot/board/atmel/sam9x60ek/sam9x60ek.c b/roms/u-boot/board/atmel/sam9x60ek/sam9x60ek.c new file mode 100644 index 000000000..32e5a2bf2 --- /dev/null +++ b/roms/u-boot/board/atmel/sam9x60ek/sam9x60ek.c @@ -0,0 +1,139 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 Microchip Technology Inc. and its subsidiaries + * + * Author: Sandeep Sheriker M <sandeep.sheriker@microchip.com> + */ + +#include <common.h> +#include <init.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/arch/at91sam9_smc.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/at91_sfr.h> +#include <asm/arch/clk.h> +#include <asm/arch/gpio.h> +#include <debug_uart.h> +#include <asm/mach-types.h> + +extern void at91_pda_detect(void); + +DECLARE_GLOBAL_DATA_PTR; + +void at91_prepare_cpu_var(void); + +#ifdef CONFIG_CMD_NAND +static void sam9x60ek_nand_hw_init(void) +{ + struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; + struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR; + unsigned int csa; + + at91_pio3_set_a_periph(AT91_PIO_PORTD, 0, 1); /* NAND OE */ + at91_pio3_set_a_periph(AT91_PIO_PORTD, 1, 1); /* NAND WE */ + at91_pio3_set_a_periph(AT91_PIO_PORTD, 2, 0); /* NAND ALE */ + at91_pio3_set_a_periph(AT91_PIO_PORTD, 3, 0); /* NAND CLE */ + /* Enable NandFlash */ + at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); + /* Configure RDY/BSY */ + at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 6, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 7, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 8, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 9, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 10, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 11, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 12, 1); + at91_pio3_set_a_periph(AT91_PIO_PORTD, 13, 1); + + at91_periph_clk_enable(ATMEL_ID_PIOD); + + /* Enable CS3 */ + csa = readl(&sfr->ebicsa); + csa |= AT91_SFR_CCFG_EBI_CSA(3, 1) | AT91_SFR_CCFG_NFD0_ON_D16; + + /* Configure IO drive */ + csa &= ~AT91_SFR_CCFG_EBI_DRIVE_SAM9X60; + + writel(csa, &sfr->ebicsa); + + /* Configure SMC CS3 for NAND/SmartMedia */ + writel(AT91_SMC_SETUP_NWE(4), &smc->cs[3].setup); + + writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(20) | + AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(20), + &smc->cs[3].pulse); + + writel(AT91_SMC_CYCLE_NWE(20) | AT91_SMC_CYCLE_NRD(20), + &smc->cs[3].cycle); + + writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | +#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 | AT91_SMC_MODE_TDF_CYCLE(15), + &smc->cs[3].mode); +} +#endif + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ + at91_prepare_cpu_var(); + + at91_pda_detect(); + + return 0; +} +#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 + +#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 + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + +#ifdef CONFIG_CMD_NAND + sam9x60ek_nand_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; +} |