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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/bluewater/snapper9260/snapper9260.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/bluewater/snapper9260/snapper9260.c')
-rw-r--r-- | roms/u-boot/board/bluewater/snapper9260/snapper9260.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/roms/u-boot/board/bluewater/snapper9260/snapper9260.c b/roms/u-boot/board/bluewater/snapper9260/snapper9260.c new file mode 100644 index 000000000..df53a651c --- /dev/null +++ b/roms/u-boot/board/bluewater/snapper9260/snapper9260.c @@ -0,0 +1,154 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Bluewater Systems Snapper 9260/9G20 modules + * + * (C) Copyright 2011 Bluewater Systems + * Author: Andre Renaud <andre@bluewatersys.com> + * Author: Ryan Mallon <ryan@bluewatersys.com> + */ + +#include <common.h> +#include <dm.h> +#include <init.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/gpio.h> +#include <asm/mach-types.h> +#include <asm/arch/at91sam9260_matrix.h> +#include <asm/arch/at91sam9_smc.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/clk.h> +#include <asm/arch/gpio.h> +#include <asm/arch/atmel_serial.h> +#include <net.h> +#include <netdev.h> +#include <i2c.h> +#include <pca953x.h> +#include <linux/delay.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* IO Expander pins */ +#define IO_EXP_ETH_RESET (0 << 1) +#define IO_EXP_ETH_POWER (1 << 1) + +static void macb_hw_init(void) +{ + struct at91_port *pioa = (struct at91_port *)ATMEL_BASE_PIOA; + + at91_periph_clk_enable(ATMEL_ID_EMAC0); + + /* Disable pull-ups to prevent PHY going into test mode */ + writel(pin_to_mask(AT91_PIN_PA14) | + pin_to_mask(AT91_PIN_PA15) | + pin_to_mask(AT91_PIN_PA18), + &pioa->pudr); + + /* Power down ethernet */ + pca953x_set_dir(0x28, IO_EXP_ETH_POWER, PCA953X_DIR_OUT); + pca953x_set_val(0x28, IO_EXP_ETH_POWER, 1); + + /* Hold ethernet in reset */ + pca953x_set_dir(0x28, IO_EXP_ETH_RESET, PCA953X_DIR_OUT); + pca953x_set_val(0x28, IO_EXP_ETH_RESET, 0); + + /* Enable ethernet power */ + pca953x_set_val(0x28, IO_EXP_ETH_POWER, 0); + + at91_phy_reset(); + + /* Bring the ethernet out of reset */ + pca953x_set_val(0x28, IO_EXP_ETH_RESET, 1); + + /* The phy internal reset take 21ms */ + udelay(21 * 1000); + + /* Re-enable pull-up */ + writel(pin_to_mask(AT91_PIN_PA14) | + pin_to_mask(AT91_PIN_PA15) | + pin_to_mask(AT91_PIN_PA18), + &pioa->puer); + + at91_macb_hw_init(); +} + +static void nand_hw_init(void) +{ + struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC; + struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; + unsigned long csa; + + /* Enable CS3 as NAND/SmartMedia */ + csa = readl(&matrix->ebicsa); + csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA; + writel(csa, &matrix->ebicsa); + + /* Configure SMC CS3 for NAND/SmartMedia */ + writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) | + AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0), + &smc->cs[3].setup); + writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(4) | + AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4), + &smc->cs[3].pulse); + writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7), + &smc->cs[3].cycle); + writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE | + AT91_SMC_MODE_EXNW_DISABLE | + AT91_SMC_MODE_DBW_8 | + AT91_SMC_MODE_TDF_CYCLE(3), + &smc->cs[3].mode); + + /* Configure RDY/BSY */ + gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand_rdy"); + gpio_direction_input(CONFIG_SYS_NAND_READY_PIN); + + /* Enable NandFlash */ + gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand_ce"); + gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); +} + +int board_init(void) +{ + at91_periph_clk_enable(ATMEL_ID_PIOA); + at91_periph_clk_enable(ATMEL_ID_PIOB); + at91_periph_clk_enable(ATMEL_ID_PIOC); + + /* The mach-type is the same for both Snapper 9260 and 9G20 */ + gd->bd->bi_arch_number = MACH_TYPE_SNAPPER_9260; + + /* Address of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + /* Initialise peripherals */ + at91_seriald_hw_init(); + i2c_set_bus_num(0); + nand_hw_init(); + macb_hw_init(); + + return 0; +} + +int board_eth_init(struct bd_info *bis) +{ + return macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x1f); +} + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_SIZE); + return 0; +} + +void reset_phy(void) +{ +} + +static struct atmel_serial_plat at91sam9260_serial_plat = { + .base_addr = ATMEL_BASE_DBGU, +}; + +U_BOOT_DRVINFO(at91sam9260_serial) = { + .name = "serial_atmel", + .plat = &at91sam9260_serial_plat, +}; |