From: Ben Whitten ben.whitten@lairdtech.com
This board is based on the Atmel 9x5 eval board. Supporting the following features: - Boot from NAND Flash - Ethernet - FIT - SPL
Signed-off-by: Ben Whitten ben.whitten@lairdtech.com Signed-off-by: Dan Kephart dan.kephart@lairdtech.com --- Changes for v2: - Updated to current master - Moved some configs to kconfig
arch/arm/mach-at91/Kconfig | 6 + arch/arm/mach-at91/include/mach/gpio.h | 2 + board/laird/wb45n/Kconfig | 12 ++ board/laird/wb45n/MAINTAINERS | 6 + board/laird/wb45n/Makefile | 6 + board/laird/wb45n/wb45n.c | 199 +++++++++++++++++++++++++++++++++ configs/wb45n_defconfig | 27 +++++ include/configs/wb45n.h | 161 ++++++++++++++++++++++++++ 8 files changed, 419 insertions(+) create mode 100644 board/laird/wb45n/Kconfig create mode 100644 board/laird/wb45n/MAINTAINERS create mode 100644 board/laird/wb45n/Makefile create mode 100644 board/laird/wb45n/wb45n.c create mode 100644 configs/wb45n_defconfig create mode 100644 include/configs/wb45n.h
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index 7e85b69..414b01b 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -237,6 +237,11 @@ config TARGET_VINCO select SAMA5D4 select SUPPORT_SPL
+config TARGET_WB45N + bool "Support Laird WB45N" + select CPU_ARM926EJS + select SUPPORT_SPL + endchoice
config SYS_SOC @@ -271,6 +276,7 @@ source "board/ronetix/pm9g45/Kconfig" source "board/siemens/corvus/Kconfig" source "board/siemens/taurus/Kconfig" source "board/siemens/smartweb/Kconfig" +source "board/laird/wb45n/Kconfig"
config SPL_LDSCRIPT default "arch/arm/mach-at91/arm926ejs/u-boot-spl.lds" if CPU_ARM926EJS diff --git a/arch/arm/mach-at91/include/mach/gpio.h b/arch/arm/mach-at91/include/mach/gpio.h index df0f719..e206316 100644 --- a/arch/arm/mach-at91/include/mach/gpio.h +++ b/arch/arm/mach-at91/include/mach/gpio.h @@ -219,6 +219,8 @@ static inline unsigned pin_to_mask(unsigned pin) at91_set_a_periph((x - PIN_BASE) / 32,(x % 32), y) #define at91_set_B_periph(x, y) \ at91_set_b_periph((x - PIN_BASE) / 32,(x % 32), y) +#define at91_set_gpio_deglitch(x, y) \ + at91_set_pio_deglitch((x - PIN_BASE) / 32,(x % 32), y) #define at91_set_gpio_output(x, y) \ at91_set_pio_output((x - PIN_BASE) / 32,(x % 32), y) #define at91_set_gpio_input(x, y) \ diff --git a/board/laird/wb45n/Kconfig b/board/laird/wb45n/Kconfig new file mode 100644 index 0000000..2a67337 --- /dev/null +++ b/board/laird/wb45n/Kconfig @@ -0,0 +1,12 @@ +if TARGET_WB45N + +config SYS_BOARD + default "wb45n" + +config SYS_VENDOR + default "laird" + +config SYS_CONFIG_NAME + default "wb45n" + +endif diff --git a/board/laird/wb45n/MAINTAINERS b/board/laird/wb45n/MAINTAINERS new file mode 100644 index 0000000..60bb563 --- /dev/null +++ b/board/laird/wb45n/MAINTAINERS @@ -0,0 +1,6 @@ +WB45N CPU MODULE +M: Ben Whitten ben.whitten@lairdtech.com +S: Maintained +F: board/laird/wb45n/ +F: include/configs/wb45n.h +F: configs/wb45n_defconfig diff --git a/board/laird/wb45n/Makefile b/board/laird/wb45n/Makefile new file mode 100644 index 0000000..fc645dd --- /dev/null +++ b/board/laird/wb45n/Makefile @@ -0,0 +1,6 @@ +# +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y += wb45n.o diff --git a/board/laird/wb45n/wb45n.c b/board/laird/wb45n/wb45n.c new file mode 100644 index 0000000..5914071 --- /dev/null +++ b/board/laird/wb45n/wb45n.c @@ -0,0 +1,199 @@ +/* + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/at91sam9x5_matrix.h> +#include <asm/arch/at91sam9_smc.h> +#include <asm/arch/at91_common.h> +#include <asm/arch/at91_rstc.h> +#include <asm/arch/clk.h> +#include <asm/arch/gpio.h> +#include <net.h> +#include <netdev.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* ------------------------------------------------------------------------- */ +/* + * Miscelaneous platform dependent initialisations + */ +static void wb45n_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; + + csa = readl(&matrix->ebicsa); + /* Enable CS3 */ + csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA; + /* NAND flash on D0 */ + csa &= ~AT91_MATRIX_NFD0_ON_D16; + writel(csa, &matrix->ebicsa); + + /* Configure SMC CS3 for NAND/SmartMedia */ + writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) | + AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0), + &smc->cs[3].setup); + writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) | + AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6), + &smc->cs[3].pulse); + writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(6), + &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(1), &smc->cs[3].mode); + + at91_periph_clk_enable(ATMEL_ID_PIOCD); + + /* Configure RDY/BSY */ + at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1); + /* Enable NandFlash */ + at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1); + /* Disable Flash Write Protect Line */ + at91_set_gpio_output(AT91_PIN_PD10, 1); + + at91_set_a_periph(AT91_PIO_PORTD, 0, 1); /* NAND OE */ + at91_set_a_periph(AT91_PIO_PORTD, 1, 1); /* NAND WE */ + at91_set_a_periph(AT91_PIO_PORTD, 2, 1); /* NAND ALE */ + at91_set_a_periph(AT91_PIO_PORTD, 3, 1); /* NAND CLE */ +} + +static void wb45n_gpio_hw_init(void) +{ + + /* Configure wifi gpio CHIP_PWD_L */ + at91_set_gpio_output(AT91_PIN_PA28, 0); + + /* Setup USB pins */ + at91_set_gpio_input(AT91_PIN_PB11, 0); + at91_set_gpio_output(AT91_PIN_PB12, 0); + + /* IRQ pin, pullup, deglitch */ + at91_set_gpio_input(AT91_PIN_PB18, 1); + at91_set_gpio_deglitch(AT91_PIN_PB18, 1); +} + +int board_eth_init(bd_t *bis) +{ + int rc = 0; + + if (has_emac0()) + rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00); + + return rc; +} + +int board_early_init_f(void) +{ + at91_seriald_hw_init(); + return 0; +} + +int board_init(void) +{ + /* address of boot parameters */ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + + wb45n_gpio_hw_init(); + + wb45n_nand_hw_init(); + + at91_macb_hw_init(); + + return 0; +} + +int dram_init(void) +{ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, + CONFIG_SYS_SDRAM_SIZE); + return 0; +} + +#if defined(CONFIG_SPL_BUILD) +#include <spl.h> +#include <nand.h> + +void at91_spl_board_init(void) +{ + /* Setup GPIO first */ + wb45n_gpio_hw_init(); + + /* Bring up NAND */ + wb45n_nand_hw_init(); +} + +void matrix_init(void) +{ + struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; + unsigned long csa; + + csa = readl(&matrix->ebicsa); + /* Pull ups on D0 - D16 */ + csa &= ~AT91_MATRIX_EBI_DBPU_OFF; + csa |= AT91_MATRIX_EBI_DBPD_OFF; + /* Normal drive strength */ + csa |= AT91_MATRIX_EBI_EBI_IOSR_NORMAL; + /* Multi-port off */ + csa &= ~AT91_MATRIX_MP_ON; + writel(csa, &matrix->ebicsa); +} + +#include <asm/arch/atmel_mpddrc.h> +static void ddr2_conf(struct atmel_mpddrc_config *ddr2) +{ + ddr2->md = (ATMEL_MPDDRC_MD_DBW_16_BITS | ATMEL_MPDDRC_MD_LPDDR_SDRAM); + + ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 | + ATMEL_MPDDRC_CR_NR_ROW_13 | + ATMEL_MPDDRC_CR_CAS_DDR_CAS3 | + ATMEL_MPDDRC_CR_DECOD_INTERLEAVED | + ATMEL_MPDDRC_CR_DQMS_SHARED); + + 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 | + 19 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET | + 18 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET); + + ddr2->tpr2 = (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET | + 2 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET | + 3 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET | + 7 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET | + 2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET); +} + +void mem_init(void) +{ + struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX; + struct atmel_mpddrc_config ddr2; + unsigned long csa; + + ddr2_conf(&ddr2); + + /* enable DDR2 clock */ + at91_system_clk_enable(AT91_PMC_DDR); + + /* Chip select 1 is for DDR2/SDRAM */ + csa = readl(&matrix->ebicsa); + csa |= AT91_MATRIX_EBI_CS1A_SDRAMC; + writel(csa, &matrix->ebicsa); + + /* DDRAM2 Controller initialize */ + ddr2_init(ATMEL_BASE_DDRSDRC, ATMEL_BASE_CS1, &ddr2); +} +#endif diff --git a/configs/wb45n_defconfig b/configs/wb45n_defconfig new file mode 100644 index 0000000..6cf41df --- /dev/null +++ b/configs/wb45n_defconfig @@ -0,0 +1,27 @@ +CONFIG_ARM=y +CONFIG_ARCH_AT91=y +CONFIG_TARGET_WB45N=y +CONFIG_SPL_GPIO_SUPPORT=y +CONFIG_SPL_LIBCOMMON_SUPPORT=y +CONFIG_SPL_LIBGENERIC_SUPPORT=y +CONFIG_SPL_SERIAL_SUPPORT=y +CONFIG_SPL_NAND_SUPPORT=y +CONFIG_FIT=y +CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9X5,SYS_USE_NANDFLASH" +CONFIG_BOOTDELAY=3 +CONFIG_BOARD_EARLY_INIT_F=y +CONFIG_SPL=y +CONFIG_HUSH_PARSER=y +CONFIG_CMD_BOOTZ=y +CONFIG_CMD_MEMTEST=y +# CONFIG_CMD_FLASH is not set +# CONFIG_CMD_FPGA is not set +# CONFIG_CMD_LOADS is not set +CONFIG_CMD_NAND=y +CONFIG_CMD_NAND_TRIMFFS=y +CONFIG_CMD_DHCP=y +CONFIG_CMD_MII=y +CONFIG_CMD_PING=y +CONFIG_ENV_IS_IN_NAND=y +CONFIG_LZMA=y +CONFIG_OF_LIBFDT=y diff --git a/include/configs/wb45n.h b/include/configs/wb45n.h new file mode 100644 index 0000000..8989d55 --- /dev/null +++ b/include/configs/wb45n.h @@ -0,0 +1,161 @@ +/* + * Configuation settings for the WB45N CPU Module. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __CONFIG_H__ +#define __CONFIG_H__ + +#include <asm/hardware.h> + +#define CONFIG_SYS_TEXT_BASE 0x23f00000 + +/* ARM asynchronous clock */ +#define CONFIG_SYS_AT91_SLOW_CLOCK 32768 +#define CONFIG_SYS_AT91_MAIN_CLOCK 12000000 /* 12 MHz crystal */ + +#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */ +#define CONFIG_SETUP_MEMORY_TAGS +#define CONFIG_INITRD_TAG +#define CONFIG_SKIP_LOWLEVEL_INIT + +/* general purpose I/O */ +#define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */ +#define CONFIG_AT91_GPIO + +/* serial console */ +#define CONFIG_ATMEL_USART +#define CONFIG_USART_BASE ATMEL_BASE_DBGU +#define CONFIG_USART_ID ATMEL_ID_SYS + +/* + * BOOTP options + */ +#define CONFIG_BOOTP_BOOTFILESIZE +#define CONFIG_BOOTP_BOOTPATH +#define CONFIG_BOOTP_GATEWAY +#define CONFIG_BOOTP_HOSTNAME + +/* SDRAM */ +#define CONFIG_NR_DRAM_BANKS 1 +#define CONFIG_SYS_SDRAM_BASE 0x20000000 +#define CONFIG_SYS_SDRAM_SIZE 0x04000000 /* 64 MB */ + +#define CONFIG_SYS_INIT_SP_ADDR \ + (CONFIG_SYS_SDRAM_BASE + 4 * 1024 - GENERATED_GBL_DATA_SIZE) + +/* NAND flash */ +#define CONFIG_NAND_ATMEL +#define CONFIG_SYS_MAX_NAND_DEVICE 1 +#define CONFIG_SYS_NAND_BASE 0x40000000 +/* our ALE is AD21 */ +#define CONFIG_SYS_NAND_MASK_ALE (1 << 21) +/* our CLE is AD22 */ +#define CONFIG_SYS_NAND_MASK_CLE (1 << 22) +#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PD4 +#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PD5 + +/* PMECC & PMERRLOC */ +#define CONFIG_ATMEL_NAND_HWECC 1 +#define CONFIG_ATMEL_NAND_HW_PMECC 1 +#define CONFIG_PMECC_CAP 4 +#define CONFIG_PMECC_SECTOR_SIZE 512 + +#define CONFIG_MTD_DEVICE +#define CONFIG_CMD_MTDPARTS +#define CONFIG_MTD_PARTITIONS +#define CONFIG_RBTREE +#define CONFIG_LZO + +/* Ethernet */ +#define CONFIG_MACB +#define CONFIG_RMII +#define CONFIG_NET_RETRY_COUNT 20 +#define CONFIG_MACB_SEARCH_PHY +#define CONFIG_ETHADDR C0:EE:40:00:00:00 +#define CONFIG_ENV_OVERWRITE 1 + +/* System */ +#define CONFIG_SYS_LOAD_ADDR 0x22000000 /* load address */ +#define CONFIG_SYS_MEMTEST_START CONFIG_SYS_SDRAM_BASE +#define CONFIG_SYS_MEMTEST_END 0x23e00000 + +#ifdef CONFIG_SYS_USE_NANDFLASH +/* bootstrap + u-boot + env + linux in nandflash */ +#define CONFIG_ENV_OFFSET 0xa0000 +#define CONFIG_ENV_OFFSET_REDUND 0xc0000 +#define CONFIG_ENV_SIZE 0x20000 /* 1 block = 128 kB */ + +#define CONFIG_BOOTCOMMAND "nand read 0x22000000 0xe0000 0x280000; " \ + "run _mtd; bootm" + +#define MTDIDS_DEFAULT "nand0=atmel_nand" +#define MTDPARTS_DEFAULT "mtdparts=atmel_nand:" \ + "128K(at91bs)," \ + "512K(u-boot)," \ + "128K(u-boot-env)," \ + "128K(redund-env)," \ + "2560K(kernel-a)," \ + "2560K(kernel-b)," \ + "38912K(rootfs-a)," \ + "38912K(rootfs-b)," \ + "46208K(user)," \ + "512K(logs)" + +#else +#error No boot method selected, please select 'CONFIG_SYS_USE_NANDFLASH' +#endif + +#define CONFIG_BOOTARGS "console=ttyS0,115200 earlyprintk " \ + "rw noinitrd mem=64M " \ + "rootfstype=ubifs root=ubi0:rootfs ubi.mtd=6" + +#define CONFIG_EXTRA_ENV_SETTINGS \ + "_mtd=mtdparts default; setenv bootargs ${bootargs} ${mtdparts}\0" \ + "autoload=no\0" \ + "autostart=no\0" \ + "ethaddr=" __stringify(CONFIG_ETHADDR) "\0" \ + "\0" + +#define CONFIG_SYS_CBSIZE 256 +#define CONFIG_SYS_MAXARGS 16 +#define CONFIG_SYS_LONGHELP +#define CONFIG_CMDLINE_EDITING +#define CONFIG_AUTO_COMPLETE + +/* + * Size of malloc() pool + */ +#define CONFIG_SYS_MALLOC_LEN (512 * 1024 + 0x1000) + +/* SPL */ +#define CONFIG_SPL_FRAMEWORK +#define CONFIG_SPL_TEXT_BASE 0x300000 +#define CONFIG_SPL_MAX_SIZE 0x6000 +#define CONFIG_SPL_STACK 0x308000 + +#define CONFIG_SPL_BSS_START_ADDR 0x20000000 +#define CONFIG_SPL_BSS_MAX_SIZE 0x80000 +#define CONFIG_SYS_SPL_MALLOC_START 0x20080000 +#define CONFIG_SYS_SPL_MALLOC_SIZE 0x80000 + +#define CONFIG_SYS_MONITOR_LEN (512 << 10) + +#define CONFIG_SYS_MASTER_CLOCK 132096000 +#define CONFIG_SYS_AT91_PLLA 0x20c73f03 +#define CONFIG_SYS_MCKR 0x1301 +#define CONFIG_SYS_MCKR_CSS 0x1302 + +#define CONFIG_SPL_NAND_DRIVERS +#define CONFIG_SPL_NAND_BASE +#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x20000 +#define CONFIG_SYS_NAND_5_ADDR_CYCLE +#define CONFIG_SYS_NAND_PAGE_SIZE 0x800 +#define CONFIG_SYS_NAND_PAGE_COUNT 64 +#define CONFIG_SYS_NAND_OOBSIZE 64 +#define CONFIG_SYS_NAND_BLOCK_SIZE 0x20000 +#define CONFIG_SYS_NAND_BAD_BLOCK_POS 0x0 +#define CONFIG_SPL_GENERATE_ATMEL_PMECC_HEADER + +#endif /* __CONFIG_H__ */