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 <ben.whitten@lairdtech.com>
Signed-off-by: Dan Kephart <dan.kephart@lairdtech.com>

8 files changed, 419 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 9ec3ab33d9..1d35d39223 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -236,6 +236,11 @@ 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
@@ -270,6 +275,7 @@ 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 df0f71975a..e206316735 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 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 <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 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 <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 0000000000..6cf41df0e5
--- /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 0000000000..8989d55f53
--- /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__ */