arm: at91: Add support for DENX MA5D4 SoM and EVK

Add support for DENX MA5D4 SoM and MA5D4EVK board, based on the
Atmel SAMA5D4 SoC. The SoM contains the SoC, eMMC, SPI NOR, SPI
CAN controllers and DRAM, the baseboard contains UART connectors,
ethernet port, microSD slot, LCD header, 2x CAN connector and a
lot of expansion headers.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>

4 files changed, 437 insertions, 0 deletions

diff --git a/board/denx/ma5d4evk/Kconfig b/board/denx/ma5d4evk/Kconfig
new file mode 100644
index 0000000..b4ef106
--- /dev/null
+++ b/board/denx/ma5d4evk/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_MA5D4EVK
+
+config SYS_BOARD
+	default "ma5d4evk"
+
+config SYS_VENDOR
+	default "denx"
+
+config SYS_CONFIG_NAME
+	default "ma5d4evk"
+
+endif
diff --git a/board/denx/ma5d4evk/MAINTAINERS b/board/denx/ma5d4evk/MAINTAINERS
new file mode 100644
index 0000000..bb25a9c
--- /dev/null
+++ b/board/denx/ma5d4evk/MAINTAINERS
@@ -0,0 +1,6 @@
+DENX MA5D4EVK BOARD
+M:	Marek Vasut <marek.vasut@gmail.com>
+S:	Maintained
+F:	board/denx/ma5d4evk/
+F:	include/configs/ma5d4evk.h
+F:	configs/ma5d4evk_defconfig
diff --git a/board/denx/ma5d4evk/Makefile b/board/denx/ma5d4evk/Makefile
new file mode 100644
index 0000000..b12b5dc
--- /dev/null
+++ b/board/denx/ma5d4evk/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2015 Marek Vasut <marex@denx.de>
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += ma5d4evk.o
diff --git a/board/denx/ma5d4evk/ma5d4evk.c b/board/denx/ma5d4evk/ma5d4evk.c
new file mode 100644
index 0000000..ec0fa28
--- /dev/null
+++ b/board/denx/ma5d4evk/ma5d4evk.c
@@ -0,0 +1,412 @@
+/*
+ * Copyright (C) 2015 Marek Vasut <marex@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/atmel_mpddrc.h>
+#include <asm/arch/atmel_usba_udc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/sama5d3_smc.h>
+#include <asm/arch/sama5d4.h>
+#include <atmel_hlcdc.h>
+#include <atmel_mci.h>
+#include <lcd.h>
+#include <mmc.h>
+#include <net.h>
+#include <netdev.h>
+#include <spi.h>
+#include <version.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_ATMEL_SPI
+int spi_cs_is_valid(unsigned int bus, unsigned int cs)
+{
+	return bus == 0 && cs == 0;
+}
+
+void spi_cs_activate(struct spi_slave *slave)
+{
+	at91_set_pio_output(AT91_PIO_PORTC, 3, 0);
+}
+
+void spi_cs_deactivate(struct spi_slave *slave)
+{
+	at91_set_pio_output(AT91_PIO_PORTC, 3, 1);
+}
+
+static void ma5d4evk_spi0_hw_init(void)
+{
+	at91_set_a_periph(AT91_PIO_PORTC, 0, 0);	/* SPI0_MISO */
+	at91_set_a_periph(AT91_PIO_PORTC, 1, 0);	/* SPI0_MOSI */
+	at91_set_a_periph(AT91_PIO_PORTC, 2, 0);	/* SPI0_SPCK */
+
+	at91_set_pio_output(AT91_PIO_PORTC, 3, 1);	/* SPI0_CS0 */
+
+	/* Enable clock */
+	at91_periph_clk_enable(ATMEL_ID_SPI0);
+}
+#endif /* CONFIG_ATMEL_SPI */
+
+#ifdef CONFIG_CMD_USB
+static void ma5d4evk_usb_hw_init(void)
+{
+	at91_set_pio_output(AT91_PIO_PORTE, 11, 0);
+	at91_set_pio_output(AT91_PIO_PORTE, 14, 0);
+}
+#endif
+
+#ifdef CONFIG_LCD
+vidinfo_t panel_info = {
+	.vl_col			= 800,
+	.vl_row			= 480,
+	.vl_clk			= 33500000,
+	.vl_bpix		= LCD_BPP,
+	.vl_tft			= 1,
+	.vl_hsync_len		= 10,
+	.vl_left_margin		= 89,
+	.vl_right_margin	= 164,
+	.vl_vsync_len		= 10,
+	.vl_upper_margin	= 23,
+	.vl_lower_margin	= 10,
+	.mmio			= ATMEL_BASE_LCDC,
+};
+
+/* No power up/down pin for the LCD pannel */
+void lcd_enable(void)	{ /* Empty! */ }
+void lcd_disable(void)	{ /* Empty! */ }
+
+unsigned int has_lcdc(void)
+{
+	return 1;
+}
+
+static void ma5d4evk_lcd_hw_init(void)
+{
+	at91_set_a_periph(AT91_PIO_PORTA, 24, 1);	/* LCDPWM */
+	at91_set_a_periph(AT91_PIO_PORTA, 25, 0);	/* LCDDISP */
+	at91_set_a_periph(AT91_PIO_PORTA, 26, 0);	/* LCDVSYNC */
+	at91_set_a_periph(AT91_PIO_PORTA, 27, 0);	/* LCDHSYNC */
+	at91_set_a_periph(AT91_PIO_PORTA, 28, 0);	/* LCDDOTCK */
+	at91_set_a_periph(AT91_PIO_PORTA, 29, 1);	/* LCDDEN */
+
+	at91_set_a_periph(AT91_PIO_PORTA,  0, 0);	/* LCDD0 */
+	at91_set_a_periph(AT91_PIO_PORTA,  1, 0);	/* LCDD1 */
+	at91_set_a_periph(AT91_PIO_PORTA,  2, 0);	/* LCDD2 */
+	at91_set_a_periph(AT91_PIO_PORTA,  3, 0);	/* LCDD3 */
+	at91_set_a_periph(AT91_PIO_PORTA,  4, 0);	/* LCDD4 */
+	at91_set_a_periph(AT91_PIO_PORTA,  5, 0);	/* LCDD5 */
+	at91_set_a_periph(AT91_PIO_PORTA,  6, 0);	/* LCDD6 */
+	at91_set_a_periph(AT91_PIO_PORTA,  7, 0);	/* LCDD7 */
+
+	at91_set_a_periph(AT91_PIO_PORTA,  8, 0);	/* LCDD9 */
+	at91_set_a_periph(AT91_PIO_PORTA,  9, 0);	/* LCDD8 */
+	at91_set_a_periph(AT91_PIO_PORTA, 10, 0);	/* LCDD10 */
+	at91_set_a_periph(AT91_PIO_PORTA, 11, 0);	/* LCDD11 */
+	at91_set_a_periph(AT91_PIO_PORTA, 12, 0);	/* LCDD12 */
+	at91_set_a_periph(AT91_PIO_PORTA, 13, 0);	/* LCDD13 */
+	at91_set_a_periph(AT91_PIO_PORTA, 14, 0);	/* LCDD14 */
+	at91_set_a_periph(AT91_PIO_PORTA, 15, 0);	/* LCDD15 */
+
+	at91_set_a_periph(AT91_PIO_PORTA, 16, 0);	/* LCDD16 */
+	at91_set_a_periph(AT91_PIO_PORTA, 17, 0);	/* LCDD17 */
+	at91_set_a_periph(AT91_PIO_PORTA, 18, 0);	/* LCDD18 */
+	at91_set_a_periph(AT91_PIO_PORTA, 19, 0);	/* LCDD19 */
+	at91_set_a_periph(AT91_PIO_PORTA, 20, 0);	/* LCDD20 */
+	at91_set_a_periph(AT91_PIO_PORTA, 21, 0);	/* LCDD21 */
+	at91_set_a_periph(AT91_PIO_PORTA, 22, 0);	/* LCDD22 */
+	at91_set_a_periph(AT91_PIO_PORTA, 23, 0);	/* LCDD23 */
+
+	/* Enable clock */
+	at91_periph_clk_enable(ATMEL_ID_LCDC);
+}
+
+#endif /* CONFIG_LCD */
+
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+/* On-SoM eMMC */
+void ma5d4evk_mci0_hw_init(void)
+{
+	at91_set_b_periph(AT91_PIO_PORTC, 5, 1);	/* MCI1 CDA */
+	at91_set_b_periph(AT91_PIO_PORTC, 6, 1);	/* MCI1 DA0 */
+	at91_set_b_periph(AT91_PIO_PORTC, 7, 1);	/* MCI1 DA1 */
+	at91_set_b_periph(AT91_PIO_PORTC, 8, 1);	/* MCI1 DA2 */
+	at91_set_b_periph(AT91_PIO_PORTC, 9, 1);	/* MCI1 DA3 */
+	at91_set_b_periph(AT91_PIO_PORTC, 10, 1);	/* MCI1 DA4 */
+	at91_set_b_periph(AT91_PIO_PORTC, 11, 1);	/* MCI1 DA5 */
+	at91_set_b_periph(AT91_PIO_PORTC, 12, 1);	/* MCI1 DA6 */
+	at91_set_b_periph(AT91_PIO_PORTC, 13, 1);	/* MCI1 DA7 */
+	at91_set_b_periph(AT91_PIO_PORTC, 4, 0);	/* MCI1 CLK */
+
+	/*
+	 * As the mci io internal pull down is too strong, so if the io needs
+	 * external pull up, the pull up resistor will be very small, if so
+	 * the power consumption will increase, so disable the internal pull
+	 * down to save the power.
+	 */
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 5, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 6, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 7, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 8, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 9, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 10, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 11, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 12, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 13, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTC, 4, 0);
+
+	/* Enable clock */
+	at91_periph_clk_enable(ATMEL_ID_MCI0);
+}
+
+/* On-board MicroSD slot */
+void ma5d4evk_mci1_hw_init(void)
+{
+	at91_set_c_periph(AT91_PIO_PORTE, 19, 1);	/* MCI1 CDA */
+	at91_set_c_periph(AT91_PIO_PORTE, 20, 1);	/* MCI1 DA0 */
+	at91_set_c_periph(AT91_PIO_PORTE, 21, 1);	/* MCI1 DA1 */
+	at91_set_c_periph(AT91_PIO_PORTE, 22, 1);	/* MCI1 DA2 */
+	at91_set_c_periph(AT91_PIO_PORTE, 23, 1);	/* MCI1 DA3 */
+	at91_set_c_periph(AT91_PIO_PORTE, 18, 0);	/* MCI1 CLK */
+
+	/*
+	 * As the mci io internal pull down is too strong, so if the io needs
+	 * external pull up, the pull up resistor will be very small, if so
+	 * the power consumption will increase, so disable the internal pull
+	 * down to save the power.
+	 */
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 18, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 19, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 20, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 21, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 22, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 23, 0);
+
+	/* Deal with WP pin on the microSD slot. */
+	at91_set_pio_output(AT91_PIO_PORTE, 16, 0);
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 16, 1);
+
+	/* Enable clock */
+	at91_periph_clk_enable(ATMEL_ID_MCI1);
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	int ret;
+
+	/* De-assert reset on On-SoM eMMC */
+	at91_set_pio_output(AT91_PIO_PORTE, 15, 1);
+	at91_set_pio_pulldown(AT91_PIO_PORTE, 15, 0);
+
+	ret = atmel_mci_init((void *)ATMEL_BASE_MCI0);
+	if (ret)	/* eMMC init failed, skip it. */
+		at91_set_pio_output(AT91_PIO_PORTE, 15, 0);
+
+	/* Enable the power supply to On-board MicroSD */
+	at91_set_pio_output(AT91_PIO_PORTE, 17, 0);
+
+	ret = atmel_mci_init((void *)ATMEL_BASE_MCI1);
+	if (ret)	/* uSD init failed, power it down. */
+		at91_set_pio_output(AT91_PIO_PORTE, 17, 1);
+
+	return 0;
+}
+#endif /* CONFIG_GENERIC_ATMEL_MCI */
+
+#ifdef CONFIG_MACB
+void ma5d4evk_macb0_hw_init(void)
+{
+	at91_set_a_periph(AT91_PIO_PORTB, 0, 0);	/* ETXCK_EREFCK */
+	at91_set_a_periph(AT91_PIO_PORTB, 6, 0);	/* ERXDV */
+	at91_set_a_periph(AT91_PIO_PORTB, 8, 0);	/* ERX0 */
+	at91_set_a_periph(AT91_PIO_PORTB, 9, 0);	/* ERX1 */
+	at91_set_a_periph(AT91_PIO_PORTB, 7, 0);	/* ERXER */
+	at91_set_a_periph(AT91_PIO_PORTB, 2, 0);	/* ETXEN */
+	at91_set_a_periph(AT91_PIO_PORTB, 12, 0);	/* ETX0 */
+	at91_set_a_periph(AT91_PIO_PORTB, 13, 0);	/* ETX1 */
+	at91_set_a_periph(AT91_PIO_PORTB, 17, 0);	/* EMDIO */
+	at91_set_a_periph(AT91_PIO_PORTB, 16, 0);	/* EMDC */
+
+	/* Enable clock */
+	at91_periph_clk_enable(ATMEL_ID_GMAC0);
+}
+#endif
+
+static void ma5d4evk_serial_hw_init(void)
+{
+	/* USART0 */
+	at91_set_a_periph(AT91_PIO_PORTD, 13, 1);	/* TXD */
+	at91_set_a_periph(AT91_PIO_PORTD, 12, 0);	/* RXD */
+	at91_set_a_periph(AT91_PIO_PORTD, 11, 0);	/* RTS */
+	at91_set_a_periph(AT91_PIO_PORTD, 10, 0);	/* CTS */
+	at91_periph_clk_enable(ATMEL_ID_USART0);
+
+	/* USART1 */
+	at91_set_a_periph(AT91_PIO_PORTD, 17, 1);	/* TXD */
+	at91_set_a_periph(AT91_PIO_PORTD, 16, 0);	/* RXD */
+	at91_set_a_periph(AT91_PIO_PORTD, 15, 0);	/* RTS */
+	at91_set_a_periph(AT91_PIO_PORTD, 14, 0);	/* CTS */
+	at91_periph_clk_enable(ATMEL_ID_USART1);
+}
+
+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);
+
+	/* Configure LEDs as OFF */
+	at91_set_pio_output(AT91_PIO_PORTD, 28, 0);
+	at91_set_pio_output(AT91_PIO_PORTD, 29, 0);
+	at91_set_pio_output(AT91_PIO_PORTD, 30, 0);
+
+	/* Reset CAN controllers */
+	at91_set_pio_output(AT91_PIO_PORTB, 21, 0);
+	udelay(100);
+	at91_set_pio_output(AT91_PIO_PORTB, 21, 1);
+	at91_set_pio_pulldown(AT91_PIO_PORTB, 21, 0);
+
+	ma5d4evk_serial_hw_init();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+#ifdef CONFIG_ATMEL_SPI
+	ma5d4evk_spi0_hw_init();
+#endif
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+	ma5d4evk_mci0_hw_init();
+	ma5d4evk_mci1_hw_init();
+#endif
+#ifdef CONFIG_MACB
+	ma5d4evk_macb0_hw_init();
+#endif
+#ifdef CONFIG_LCD
+	ma5d4evk_lcd_hw_init();
+#endif
+#ifdef CONFIG_CMD_USB
+	ma5d4evk_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_GMAC0, 0x00);
+#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)
+{
+	ma5d4evk_spi0_hw_init();
+}
+
+static void ddr2_conf(struct atmel_mpddrc_config *ddr2)
+{
+	ddr2->md = (ATMEL_MPDDRC_MD_DBW_32_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
+
+	ddr2->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
+		    ATMEL_MPDDRC_CR_NR_ROW_13 |
+		    ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
+		    ATMEL_MPDDRC_CR_NB_8BANKS |
+		    ATMEL_MPDDRC_CR_NDQS_DISABLED |
+		    ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
+		    ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
+
+	ddr2->rtr = 0x2b0;
+
+	ddr2->tpr0 = (8 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET |
+		      3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET |
+		      3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET |
+		      10 << ATMEL_MPDDRC_TPR0_TRC_OFFSET |
+		      3 << 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 |
+		      25 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET |
+		      23 << 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 |
+		      2 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET |
+		      8 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET);
+}
+
+void mem_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+	struct atmel_mpddrc_config ddr2;
+
+	ddr2_conf(&ddr2);
+
+	/* enable MPDDR clock */
+	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
+	writel(AT91_PMC_DDR, &pmc->scer);
+
+	/* DDRAM2 Controller initialize */
+	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
+}
+
+void at91_pmc_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+	u32 tmp;
+
+	tmp = AT91_PMC_PLLAR_29 |
+	      AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
+	      AT91_PMC_PLLXR_MUL(87) |
+	      AT91_PMC_PLLXR_DIV(1);
+	at91_plla_init(tmp);
+
+	writel(0x0 << 8, &pmc->pllicpr);
+
+	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