From 5aaef600776fb2d9f186c12e30975e6afaa276a6 Mon Sep 17 00:00:00 2001 From: Ben Whitten Date: Thu, 23 Nov 2017 13:47:47 +0000 Subject: board: laird: add WB45N CPU module 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 Signed-off-by: Dan Kephart --- board/laird/wb45n/Kconfig | 12 +++ board/laird/wb45n/MAINTAINERS | 6 ++ board/laird/wb45n/Makefile | 6 ++ board/laird/wb45n/wb45n.c | 199 ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 223 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 (limited to 'board') diff --git a/board/laird/wb45n/Kconfig b/board/laird/wb45n/Kconfig new file mode 100644 index 0000000000..2a67337293 --- /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 0000000000..60bb563201 --- /dev/null +++ b/board/laird/wb45n/MAINTAINERS @@ -0,0 +1,6 @@ +WB45N CPU MODULE +M: Ben Whitten +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 0000000000..fc645ddc53 --- /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 0000000000..5914071647 --- /dev/null +++ b/board/laird/wb45n/wb45n.c @@ -0,0 +1,199 @@ +/* + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +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 +#include + +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 +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 -- cgit v1.2.3