board: atmel: add SAMA5D2 ICP board

The SAMA5D2 ICP Board features the SAMA5D27 SoC,
together with QSPI Flash, Wilc3000 wireless device and
EtherCat support.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>

4 files changed, 220 insertions, 0 deletions

diff --git a/board/atmel/sama5d2_icp/Kconfig b/board/atmel/sama5d2_icp/Kconfig
new file mode 100644
index 0000000000..3859845510
--- /dev/null
+++ b/board/atmel/sama5d2_icp/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_SAMA5D2_ICP
+
+config SYS_BOARD
+	default "sama5d2_icp"
+
+config SYS_VENDOR
+	default "atmel"
+
+config SYS_SOC
+	default "at91"
+
+config SYS_CONFIG_NAME
+	default "sama5d2_icp"
+
+endif
diff --git a/board/atmel/sama5d2_icp/MAINTAINERS b/board/atmel/sama5d2_icp/MAINTAINERS
new file mode 100644
index 0000000000..db984b6ae4
--- /dev/null
+++ b/board/atmel/sama5d2_icp/MAINTAINERS
@@ -0,0 +1,7 @@
+SAMA5D2 ICP BOARD
+M:     Eugen Hristev <eugen.hristev@microchip.com>
+S:     Maintained
+F:     board/atmel/sama5d2_icp/
+F:     include/configs/sama5d2_icp.h
+F:     configs/sama5d2_icp_mmc_defconfig
+
diff --git a/board/atmel/sama5d2_icp/Makefile b/board/atmel/sama5d2_icp/Makefile
new file mode 100644
index 0000000000..fd7e870599
--- /dev/null
+++ b/board/atmel/sama5d2_icp/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier:     GPL-2.0+
+#
+# Copyright (C) 2018 Microchip Technology Inc.
+#                   Eugen Hristev <eugen.hristev@microchip.com>
+#
+
+obj-y += sama5d2_icp.o
diff --git a/board/atmel/sama5d2_icp/sama5d2_icp.c b/board/atmel/sama5d2_icp/sama5d2_icp.c
new file mode 100644
index 0000000000..807cfcdb19
--- /dev/null
+++ b/board/atmel/sama5d2_icp/sama5d2_icp.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Microchip Technology, Inc.
+ *		      Eugen Hristev <eugen.hristev@microchip.com>
+ */
+
+#include <common.h>
+#include <debug_uart.h>
+#include <asm/io.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/atmel_pio4.h>
+#include <asm/arch/atmel_mpddrc.h>
+#include <asm/arch/atmel_sdhci.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/sama5d2.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_late_init(void)
+{
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_UART_BOARD_INIT
+static void board_uart0_hw_init(void)
+{
+	atmel_pio4_set_c_periph(AT91_PIO_PORTB, 26, ATMEL_PIO_PUEN_MASK); /* URXD0 */
+	atmel_pio4_set_c_periph(AT91_PIO_PORTB, 27, 0);	/* UTXD0 */
+
+	at91_periph_clk_enable(ATMEL_ID_UART0);
+}
+
+void board_debug_uart_init(void)
+{
+	board_uart0_hw_init();
+}
+#endif
+
+int board_early_init_f(void)
+{
+#ifdef CONFIG_DEBUG_UART
+	debug_uart_init();
+#endif
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+				    CONFIG_SYS_SDRAM_SIZE);
+	return 0;
+}
+
+#define MAC24AA_MAC_OFFSET	0xfa
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_I2C_EEPROM
+	at91_set_ethaddr(MAC24AA_MAC_OFFSET);
+#endif
+	return 0;
+}
+
+/* SPL */
+#ifdef CONFIG_SPL_BUILD
+
+#ifdef CONFIG_SD_BOOT
+void spl_mmc_init(void)
+{
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 1, 0);	/* CMD */
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 2, 0);	/* DAT0 */
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 3, 0);	/* DAT1 */
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 4, 0);	/* DAT2 */
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 5, 0);	/* DAT3 */
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 0, 0);	/* CK */
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 13, 0);	/* CD */
+
+	at91_periph_clk_enable(ATMEL_ID_SDMMC0);
+}
+#endif
+
+void spl_board_init(void)
+{
+#ifdef CONFIG_SD_BOOT
+	spl_mmc_init();
+#endif
+}
+
+void spl_display_print(void)
+{
+}
+
+static void ddrc_conf(struct atmel_mpddrc_config *ddrc)
+{
+	ddrc->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR3_SDRAM);
+
+	ddrc->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
+		    ATMEL_MPDDRC_CR_NR_ROW_14 |
+		    ATMEL_MPDDRC_CR_CAS_DDR_CAS5 |
+		    ATMEL_MPDDRC_CR_DIC_DS |
+		    ATMEL_MPDDRC_CR_NB_8BANKS |
+		    ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
+		    ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
+
+	ddrc->rtr = 0x298;
+
+	ddrc->tpr0 = ((6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET) |
+		      (3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET) |
+		      (3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET) |
+		      (9 << ATMEL_MPDDRC_TPR0_TRC_OFFSET) |
+		      (3 << ATMEL_MPDDRC_TPR0_TRP_OFFSET) |
+		      (4 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET) |
+		      (4 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET) |
+		      (4 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET));
+
+	ddrc->tpr1 = ((27 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET) |
+		      (29 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET) |
+		      (0 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET) |
+		      (10 << ATMEL_MPDDRC_TPR1_TXP_OFFSET));
+
+	ddrc->tpr2 = ((0 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET) |
+		      (0 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET) |
+		      (0 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET) |
+		      (4 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET) |
+		      (7 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET));
+}
+
+void mem_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+	struct atmel_mpddr *mpddrc = (struct atmel_mpddr *)ATMEL_BASE_MPDDRC;
+	struct atmel_mpddrc_config ddrc_config;
+	u32 reg;
+
+	ddrc_conf(&ddrc_config);
+
+	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
+	writel(AT91_PMC_DDR, &pmc->scer);
+
+	reg = readl(&mpddrc->io_calibr);
+	reg &= ~ATMEL_MPDDRC_IO_CALIBR_RDIV;
+	reg |= ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_55;
+	reg &= ~ATMEL_MPDDRC_IO_CALIBR_TZQIO;
+	reg |= ATMEL_MPDDRC_IO_CALIBR_TZQIO_(100);
+	writel(reg, &mpddrc->io_calibr);
+
+	writel(ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_ONE_CYCLE,
+	       &mpddrc->rd_data_path);
+
+	ddr3_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddrc_config);
+
+	writel(0x5355, &mpddrc->cal_mr4);
+	writel(64, &mpddrc->tim_cal);
+}
+
+void at91_pmc_init(void)
+{
+	u32 tmp;
+
+	/*
+	 * while coming from the ROM code, we run on PLLA @ 492 MHz / 164 MHz
+	 * so we need to slow down and configure MCKR accordingly.
+	 * This is why we have a special flavor of the switching function.
+	 */
+	tmp = AT91_PMC_MCKR_PLLADIV_2 |
+	      AT91_PMC_MCKR_MDIV_3 |
+	      AT91_PMC_MCKR_CSS_MAIN;
+	at91_mck_init_down(tmp);
+
+	tmp = AT91_PMC_PLLAR_29 |
+	      AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
+	      AT91_PMC_PLLXR_MUL(82) |
+	      AT91_PMC_PLLXR_DIV(1);
+	at91_plla_init(tmp);
+
+	tmp = AT91_PMC_MCKR_H32MXDIV |
+	      AT91_PMC_MCKR_PLLADIV_2 |
+	      AT91_PMC_MCKR_MDIV_3 |
+	      AT91_PMC_MCKR_CSS_PLLA;
+	at91_mck_init(tmp);
+}
+#endif