board: laird: add WB50N CPU module

This board is based on the Atmel sama5d3 eval boards.
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>

7 files changed, 407 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 1d35d39223..6907263539 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -241,6 +241,13 @@ config TARGET_WB45N
 	select CPU_ARM926EJS
 	select SUPPORT_SPL
 
+config TARGET_WB50N
+	bool "Support Laird WB50N"
+	select BOARD_LATE_INIT
+	select CPU_V7
+	select SUPPORT_SPL
+	select BOARD_EARLY_INIT_F
+
 endchoice
 
 config SYS_SOC
@@ -276,6 +283,7 @@ source "board/siemens/corvus/Kconfig"
 source "board/siemens/taurus/Kconfig"
 source "board/siemens/smartweb/Kconfig"
 source "board/laird/wb45n/Kconfig"
+source "board/laird/wb50n/Kconfig"
 
 config SPL_LDSCRIPT
 	default "arch/arm/mach-at91/arm926ejs/u-boot-spl.lds" if CPU_ARM926EJS
diff --git a/board/laird/wb50n/Kconfig b/board/laird/wb50n/Kconfig
new file mode 100644
index 0000000000..2e7090ec34
--- /dev/null
+++ b/board/laird/wb50n/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_WB50N
+
+config SYS_BOARD
+	default "wb50n"
+
+config SYS_VENDOR
+	default "laird"
+
+config SYS_CONFIG_NAME
+	default "wb50n"
+
+endif
diff --git a/board/laird/wb50n/MAINTAINERS b/board/laird/wb50n/MAINTAINERS
new file mode 100644
index 0000000000..3d38fc4e9f
--- /dev/null
+++ b/board/laird/wb50n/MAINTAINERS
@@ -0,0 +1,6 @@
+WB50N CPU MODULE
+M:	Ben Whitten <ben.whitten@lairdtech.com>
+S:	Maintained
+F:	board/laird/wb50n/
+F:	include/configs/wb50n.h
+F:	configs/wb50n_defconfig
diff --git a/board/laird/wb50n/Makefile b/board/laird/wb50n/Makefile
new file mode 100644
index 0000000000..d1b6cfa291
--- /dev/null
+++ b/board/laird/wb50n/Makefile
@@ -0,0 +1,6 @@
+#
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += wb50n.o
diff --git a/board/laird/wb50n/wb50n.c b/board/laird/wb50n/wb50n.c
new file mode 100644
index 0000000000..8896e62073
--- /dev/null
+++ b/board/laird/wb50n/wb50n.c
@@ -0,0 +1,206 @@
+/*
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/sama5_sfr.h>
+#include <asm/arch/sama5d3_smc.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/clk.h>
+#include <micrel.h>
+#include <net.h>
+#include <netdev.h>
+#include <spl.h>
+#include <asm/arch/atmel_mpddrc.h>
+#include <asm/arch/at91_wdt.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+void wb50n_nand_hw_init(void)
+{
+	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
+
+	at91_periph_clk_enable(ATMEL_ID_SMC);
+
+	/* Configure SMC CS3 for NAND/SmartMedia */
+	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
+	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
+	       &smc->cs[3].setup);
+	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
+	       AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
+	       &smc->cs[3].pulse);
+	writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
+	       &smc->cs[3].cycle);
+	writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
+	       AT91_SMC_TIMINGS_TAR(3) | AT91_SMC_TIMINGS_TRR(4) |
+	       AT91_SMC_TIMINGS_TWB(5) | AT91_SMC_TIMINGS_RBNSEL(3) |
+	       AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
+	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);
+
+	/* Disable Flash Write Protect Line */
+	at91_set_pio_output(AT91_PIO_PORTE, 14, 1);
+}
+
+int board_early_init_f(void)
+{
+	at91_periph_clk_enable(ATMEL_ID_PIOA);
+	at91_periph_clk_enable(ATMEL_ID_PIOB);
+	at91_periph_clk_enable(ATMEL_ID_PIOC);
+	at91_periph_clk_enable(ATMEL_ID_PIOD);
+	at91_periph_clk_enable(ATMEL_ID_PIOE);
+
+	at91_seriald_hw_init();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	wb50n_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;
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	/* rx data delay */
+	ksz9021_phy_extended_write(phydev,
+	                           MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x2222);
+	/* tx data delay */
+	ksz9021_phy_extended_write(phydev,
+	                           MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x2222);
+	/* rx/tx clock delay */
+	ksz9021_phy_extended_write(phydev,
+	                           MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf2f4);
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = 0;
+
+	rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC, 0x00);
+
+	return rc;
+}
+
+#ifdef CONFIG_BOARD_LATE_INIT
+#include <linux/ctype.h>
+int board_late_init(void)
+{
+#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+	const char *LAIRD_NAME = "lrd_name";
+	char name[32], *p;
+
+	strcpy(name, get_cpu_name());
+	for (p = name; *p != '\0'; *p = tolower(*p), p++)
+		;
+	strcat(name, "-wb50n");
+	env_set(LAIRD_NAME, name);
+
+#endif
+
+	return 0;
+}
+#endif
+
+/* SPL */
+#ifdef CONFIG_SPL_BUILD
+void spl_board_init(void)
+{
+	wb50n_nand_hw_init();
+}
+
+static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
+{
+	ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_LPDDR_SDRAM);
+
+	ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_9 |
+	            ATMEL_MPDDRC_CR_NR_ROW_13 |
+	            ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
+	            ATMEL_MPDDRC_CR_NDQS_DISABLED |
+	            ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
+	            ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
+
+	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 atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
+	struct atmel_mpddrc_config ddr2;
+
+	ddr2_conf(&ddr2);
+
+	writel(ATMEL_SFR_DDRCFG_FDQIEN | ATMEL_SFR_DDRCFG_FDQSIEN,
+	       &sfr->ddrcfg);
+
+	/* enable MPDDR clock */
+	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
+	at91_system_clk_enable(AT91_PMC_DDR);
+
+	/* DDRAM2 Controller initialize */
+	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
+}
+
+void at91_pmc_init(void)
+{
+	u32 tmp;
+
+	tmp = AT91_PMC_PLLAR_29 |
+	      AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
+	      AT91_PMC_PLLXR_MUL(43) | AT91_PMC_PLLXR_DIV(1);
+	at91_plla_init(tmp);
+
+	at91_pllicpr_init(AT91_PMC_IPLL_PLLA(0x3));
+
+	tmp = AT91_PMC_MCKR_MDIV_4 | AT91_PMC_MCKR_CSS_PLLA;
+	at91_mck_init(tmp);
+}
+#endif
diff --git a/configs/wb50n_defconfig b/configs/wb50n_defconfig
new file mode 100644
index 0000000000..1f3e41e5c6
--- /dev/null
+++ b/configs/wb50n_defconfig
@@ -0,0 +1,30 @@
+CONFIG_ARM=y
+CONFIG_ARCH_AT91=y
+CONFIG_TARGET_WB50N=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="SAMA5D3,SYS_USE_NANDFLASH"
+CONFIG_BOOTDELAY=3
+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_PHYLIB=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ90X1=y
+CONFIG_NETDEVICES=y
+CONFIG_LZMA=y
+CONFIG_OF_LIBFDT=y
diff --git a/include/configs/wb50n.h b/include/configs/wb50n.h
new file mode 100644
index 0000000000..4ab81c864b
--- /dev/null
+++ b/include/configs/wb50n.h
@@ -0,0 +1,139 @@
+/*
+ * Configuation settings for the WB50N 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	/* from 12 MHz crystal */
+
+#define CONFIG_ARCH_CPU_INIT
+
+#define CONFIG_CMDLINE_TAG	/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#endif
+
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+#define CONFIG_IMAGE_FORMAT_LEGACY
+
+/* general purpose I/O */
+#define CONFIG_AT91_GPIO
+
+/* serial console */
+#define CONFIG_ATMEL_USART
+#define CONFIG_USART_BASE       ATMEL_BASE_DBGU
+#define CONFIG_USART_ID         ATMEL_ID_DBGU
+
+/*
+ * 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       ATMEL_BASE_DDRCS
+#define CONFIG_SYS_SDRAM_SIZE       0x04000000
+
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SYS_INIT_SP_ADDR     0x310000
+#else
+#define CONFIG_SYS_INIT_SP_ADDR \
+    (CONFIG_SYS_SDRAM_BASE + 4 * 1024 - GENERATED_GBL_DATA_SIZE)
+#endif
+
+#define CONFIG_SYS_MEMTEST_START    0x21000000
+#define CONFIG_SYS_MEMTEST_END      0x22000000
+#define CONFIG_SYS_ALT_MEMTEST
+
+/* NAND flash */
+#define CONFIG_NAND_ATMEL
+#define CONFIG_SYS_MAX_NAND_DEVICE  1
+#define CONFIG_SYS_NAND_BASE        ATMEL_BASE_CS3
+/* 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_ONFI_DETECTION
+/* PMECC & PMERRLOC */
+#define CONFIG_ATMEL_NAND_HWECC
+#define CONFIG_ATMEL_NAND_HW_PMECC
+#define CONFIG_PMECC_CAP            8
+#define CONFIG_PMECC_SECTOR_SIZE    512
+
+/* Ethernet Hardware */
+#define CONFIG_MACB
+#define CONFIG_RMII
+#define CONFIG_NET_RETRY_COUNT      20
+#define CONFIG_MACB_SEARCH_PHY
+#define CONFIG_RGMII
+#define CONFIG_ETHADDR              C0:EE:40:00:00:00
+#define CONFIG_ENV_OVERWRITE        1
+
+#define CONFIG_SYS_LOAD_ADDR        0x22000000	/* load address */
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+    "autoload=no\0" \
+    "autostart=no\0"
+
+/* bootstrap + u-boot + env in nandflash */
+#define CONFIG_ENV_OFFSET           0xA0000
+#define CONFIG_ENV_OFFSET_REDUND    0xC0000
+#define CONFIG_ENV_SIZE             0x20000
+#define CONFIG_BOOTCOMMAND \
+    "nand read 0x22000000 0x000e0000 0x500000; " \
+    "bootm"
+
+#define CONFIG_BOOTARGS \
+    "rw rootfstype=ubifs ubi.mtd=6 root=ubi0:rootfs"
+
+#define CONFIG_BAUDRATE             115200
+
+#define CONFIG_SYS_CBSIZE           1024
+#define CONFIG_SYS_MAXARGS          16
+#define CONFIG_SYS_PBSIZE \
+    (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_AUTO_COMPLETE
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN       (2 * 1024 * 1024)
+
+/* SPL */
+#define CONFIG_SPL_FRAMEWORK
+#define CONFIG_SPL_TEXT_BASE        0x300000
+#define CONFIG_SPL_MAX_SIZE         0x10000
+#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_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