board: atmel: add SAMA5D2 PTC Engineering board

The board supports following features:
 - Boot media support: NAND Flash/SPI Flash
 - Support ethernet
 - Support USB mass storage

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Andreas Bießmann <andreas@biessmann.org>

4 files changed, 315 insertions, 0 deletions

diff --git a/board/atmel/sama5d2_ptc/Kconfig b/board/atmel/sama5d2_ptc/Kconfig
new file mode 100644
index 0000000000..d2661c689a
--- /dev/null
+++ b/board/atmel/sama5d2_ptc/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_SAMA5D2_PTC
+
+config SYS_BOARD
+	default "sama5d2_ptc"
+
+config SYS_VENDOR
+	default "atmel"
+
+config SYS_SOC
+	default "at91"
+
+config SYS_CONFIG_NAME
+	default "sama5d2_ptc"
+
+endif
diff --git a/board/atmel/sama5d2_ptc/MAINTAINERS b/board/atmel/sama5d2_ptc/MAINTAINERS
new file mode 100644
index 0000000000..7ab03d6eaf
--- /dev/null
+++ b/board/atmel/sama5d2_ptc/MAINTAINERS
@@ -0,0 +1,7 @@
+SAMA5D2 PTC Engineering BOARD
+M:	Wenyou Yang <wenyou.yang@atmel.com>
+S:	Maintained
+F:	board/atmel/sama5d2_ptc/
+F:	include/configs/sama5d2_ptc.h
+F:	configs/sama5d2_ptc_spiflash_defconfig
+F:	configs/sama5d2_ptc_nandflash_defconfig
diff --git a/board/atmel/sama5d2_ptc/Makefile b/board/atmel/sama5d2_ptc/Makefile
new file mode 100644
index 0000000000..1fe0392da0
--- /dev/null
+++ b/board/atmel/sama5d2_ptc/Makefile
@@ -0,0 +1,8 @@
+#
+# Copyright (C) 2016 Atmel
+#		     Wenyou Yang <wenyou.yang@atmel.com>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += sama5d2_ptc.o
diff --git a/board/atmel/sama5d2_ptc/sama5d2_ptc.c b/board/atmel/sama5d2_ptc/sama5d2_ptc.c
new file mode 100644
index 0000000000..9e6544bc07
--- /dev/null
+++ b/board/atmel/sama5d2_ptc/sama5d2_ptc.c
@@ -0,0 +1,285 @@
+/*
+ * Copyright (C) 2016 Atmel
+ *		      Wenyou.Yang <wenyou.yang@atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <atmel_hlcdc.h>
+#include <lcd.h>
+#include <mmc.h>
+#include <net.h>
+#include <netdev.h>
+#include <spi.h>
+#include <version.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_usba_udc.h>
+#include <asm/arch/atmel_sdhci.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/sama5_sfr.h>
+#include <asm/arch/sama5d2.h>
+#include <asm/arch/sama5d3_smc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+	return bus == 0 && cs == 0;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+	atmel_pio4_set_pio_output(AT91_PIO_PORTA, 17, 0);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+	atmel_pio4_set_pio_output(AT91_PIO_PORTA, 17, 1);
+}
+
+static void board_spi0_hw_init(void)
+{
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 14, 0);
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 15, 0);
+	atmel_pio4_set_a_periph(AT91_PIO_PORTA, 16, 0);
+
+	atmel_pio4_set_pio_output(AT91_PIO_PORTA, 17, 1);
+
+	at91_periph_clk_enable(ATMEL_ID_SPI0);
+}
+
+static void board_nand_hw_init(void)
+{
+	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
+	struct atmel_sfr *sfr = (struct atmel_sfr *)ATMEL_BASE_SFR;
+
+	at91_periph_clk_enable(ATMEL_ID_HSMC);
+
+	writel(AT91_SFR_EBICFG_DRIVE0_HIGH |
+	       AT91_SFR_EBICFG_PULL0_NONE |
+	       AT91_SFR_EBICFG_DRIVE1_HIGH |
+	       AT91_SFR_EBICFG_PULL1_NONE, &sfr->ebicfg);
+
+	/* Configure SMC CS3 for NAND */
+	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
+	       AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
+	       &smc->cs[3].setup);
+	writel(AT91_SMC_PULSE_NWE(2) | AT91_SMC_PULSE_NCS_WR(3) |
+	       AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(3),
+	       &smc->cs[3].pulse);
+	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
+	       &smc->cs[3].cycle);
+	writel(AT91_SMC_TIMINGS_TCLR(2) | AT91_SMC_TIMINGS_TADL(7) |
+	       AT91_SMC_TIMINGS_TAR(2)  | AT91_SMC_TIMINGS_TRR(3)   |
+	       AT91_SMC_TIMINGS_TWB(7)  | 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);
+
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 0, 0);	/* D0 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 1, 0);	/* D1 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 2, 0);	/* D2 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 3, 0);	/* D3 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 4, 0);	/* D4 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 5, 0);	/* D5 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 6, 0);	/* D6 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 7, 0);	/* D7 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 12, 0);	/* RE */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 8, 0);	/* WE */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 9, 1);	/* NCS */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 21, 1);	/* RDY */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 10, 1);	/* ALE */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTA, 11, 1);	/* CLE */
+}
+
+static void board_usb_hw_init(void)
+{
+	atmel_pio4_set_pio_output(AT91_PIO_PORTA, 28, 1);
+}
+
+static void board_gmac_hw_init(void)
+{
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 14, 0);	/* GTXCK */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 15, 0);	/* GTXEN */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 16, 0);	/* GRXDV */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 17, 0);	/* GRXER */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 18, 0);	/* GRX0 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 19, 0);	/* GRX1 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 20, 0);	/* GTX0 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 21, 0);	/* GTX1 */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 22, 0);	/* GMDC */
+	atmel_pio4_set_f_periph(AT91_PIO_PORTB, 23, 0);	/* GMDIO */
+
+	at91_periph_clk_enable(ATMEL_ID_GMAC);
+}
+
+static void board_uart0_hw_init(void)
+{
+	atmel_pio4_set_c_periph(AT91_PIO_PORTB, 26, 1);	/* URXD0 */
+	atmel_pio4_set_c_periph(AT91_PIO_PORTB, 27, 0);	/* UTXD0 */
+
+	at91_periph_clk_enable(CONFIG_USART_ID);
+}
+
+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);
+
+	board_uart0_hw_init();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_ATMEL_SPI
+	board_spi0_hw_init();
+#endif
+#ifdef CONFIG_NAND_ATMEL
+	board_nand_hw_init();
+#endif
+#ifdef CONFIG_MACB
+	board_gmac_hw_init();
+#endif
+#ifdef CONFIG_CMD_USB
+	board_usb_hw_init();
+#endif
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+	at91_udp_hw_init();
+#endif
+
+	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_eth_init(bd_t *bis)
+{
+	int rc = 0;
+
+#ifdef CONFIG_MACB
+	rc = macb_eth_initialize(0, (void *)ATMEL_BASE_GMAC, 0x00);
+	if (rc)
+		printf("GMAC register failed\n");
+#endif
+
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+	usba_udc_probe(&pdata);
+#ifdef CONFIG_USB_ETH_RNDIS
+	usb_eth_initialize(bis);
+#endif
+#endif
+
+	return rc;
+}
+
+/* SPL */
+#ifdef CONFIG_SPL_BUILD
+void spl_board_init(void)
+{
+#ifdef CONFIG_SYS_USE_SERIALFLASH
+	board_spi0_hw_init();
+#endif
+
+#ifdef CONFIG_SYS_USE_NANDFLASH
+	board_nand_hw_init();
+#endif
+}
+
+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_DIS_DLL |
+		    ATMEL_MPDDRC_CR_NB_8BANKS |
+		    ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
+		    ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
+
+	ddrc->rtr = 0x511;
+
+	ddrc->tpr0 = ((6 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET) |
+		      (3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET) |
+		      (4 << 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) |
+		      (3 << 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 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);
+	at91_system_clk_enable(AT91_PMC_DDR);
+
+	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_TWO_CYCLE,
+	       &mpddrc->rd_data_path);
+
+	ddr3_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddrc_config);
+
+	writel(0x3, &mpddrc->cal_mr4);
+	writel(64, &mpddrc->tim_cal);
+}
+
+void at91_pmc_init(void)
+{
+	at91_plla_init(AT91_PMC_PLLAR_29 |
+		       AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
+		       AT91_PMC_PLLXR_MUL(82) |
+		       AT91_PMC_PLLXR_DIV(1));
+
+	at91_pllicpr_init(0);
+
+	at91_mck_init(AT91_PMC_MCKR_H32MXDIV |
+		      AT91_PMC_MCKR_PLLADIV_2 |
+		      AT91_PMC_MCKR_MDIV_3 |
+		      AT91_PMC_MCKR_CSS_PLLA);
+}
+#endif