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>
diff --git a/board/laird/wb50n/wb50n.c b/board/laird/wb50n/wb50n.c
new file mode 100644
index 0000000..8896e62
--- /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