arm: atmel: Add SAMA5D2 Xplained board

The board supports following features:
 - Boot media support: SD card/e.MMC/SPI flash,
 - Support LCD display (optional, disabled by default),
 - Support ethernet,
 - Support USB mass storage.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
[fix checkpatch warnings]
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

7 files changed, 274 insertions, 6 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index fdaf328722..c33364758b 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -71,6 +71,10 @@ config TARGET_AT91SAM9X5EK
 	select CPU_ARM926EJS
 	select SUPPORT_SPL
 
+config TARGET_SAMA5D2_XPLAINED
+	bool "SAMA5D2 Xplained board"
+	select CPU_V7
+
 config TARGET_SAMA5D3_XPLAINED
 	bool "SAMA5D3 Xplained board"
 	select CPU_V7
@@ -123,6 +127,7 @@ source "board/atmel/at91sam9m10g45ek/Kconfig"
 source "board/atmel/at91sam9n12ek/Kconfig"
 source "board/atmel/at91sam9rlek/Kconfig"
 source "board/atmel/at91sam9x5ek/Kconfig"
+source "board/atmel/sama5d2_xplained/Kconfig"
 source "board/atmel/sama5d3_xplained/Kconfig"
 source "board/atmel/sama5d3xek/Kconfig"
 source "board/atmel/sama5d4_xplained/Kconfig"
diff --git a/arch/arm/mach-at91/armv7/Makefile b/arch/arm/mach-at91/armv7/Makefile
index f4f35a4bc1..9538bc1fad 100644
--- a/arch/arm/mach-at91/armv7/Makefile
+++ b/arch/arm/mach-at91/armv7/Makefile
@@ -8,6 +8,7 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
+obj-$(CONFIG_SAMA5D2)	+= sama5d2_devices.o
 obj-$(CONFIG_SAMA5D3)	+= sama5d3_devices.o
 obj-$(CONFIG_SAMA5D4)	+= sama5d4_devices.o
 obj-y += clock.o
diff --git a/arch/arm/mach-at91/armv7/sama5d2_devices.c b/arch/arm/mach-at91/armv7/sama5d2_devices.c
new file mode 100644
index 0000000000..88f8f2c53d
--- /dev/null
+++ b/arch/arm/mach-at91/armv7/sama5d2_devices.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2015 Atmel Corporation
+ *		      Wenyou Yang <wenyou.yang@atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/sama5d2.h>
+
+char *get_cpu_name()
+{
+	unsigned int extension_id = get_extension_chip_id();
+
+	if (cpu_is_sama5d2()) {
+		switch (extension_id) {
+		case ARCH_EXID_SAMA5D21CU:
+			return "SAMA5D21";
+		case ARCH_EXID_SAMA5D22CU:
+			return "SAMA5D22-CU";
+		case ARCH_EXID_SAMA5D22CN:
+			return "SAMA5D22-CN";
+		case ARCH_EXID_SAMA5D23CU:
+			return "SAMA5D23-CU";
+		case ARCH_EXID_SAMA5D24CX:
+			return "SAMA5D24-CX";
+		case ARCH_EXID_SAMA5D24CU:
+			return "SAMA5D24-CU";
+		case ARCH_EXID_SAMA5D26CU:
+			return "SAMA5D26-CU";
+		case ARCH_EXID_SAMA5D27CU:
+			return "SAMA5D27-CU";
+		case ARCH_EXID_SAMA5D27CN:
+			return "SAMA5D27-CN";
+		case ARCH_EXID_SAMA5D28CU:
+			return "SAMA5D28-CU";
+		case ARCH_EXID_SAMA5D28CN:
+			return "SAMA5D28-CN";
+		}
+	}
+
+	return "Unknown CPU type";
+}
+
+#ifdef CONFIG_USB_GADGET_ATMEL_USBA
+void at91_udp_hw_init(void)
+{
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+	writel(AT91_PMC_UPLLEN | AT91_PMC_BIASEN, &pmc->uckr);
+
+	at91_periph_clk_enable(ATMEL_ID_UDPHS);
+}
+#endif
diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h
index 5a51be6288..3f50f7718f 100644
--- a/arch/arm/mach-at91/include/mach/at91_pmc.h
+++ b/arch/arm/mach-at91/include/mach/at91_pmc.h
@@ -78,7 +78,8 @@ typedef struct at91_pmc {
 #define AT91_PMC_PLLXR_DIV(x)		(x & 0xFF)
 #define AT91_PMC_PLLXR_PLLCOUNT(x)	((x & 0x3F) << 8)
 #define AT91_PMC_PLLXR_OUT(x)		((x & 0x03) << 14)
-#if defined(CONFIG_SAMA5D3) || defined(CONFIG_SAMA5D4)
+#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) || \
+	defined(CONFIG_SAMA5D4)
 #define AT91_PMC_PLLXR_MUL(x)		((x & 0x7F) << 18)
 #else
 #define AT91_PMC_PLLXR_MUL(x)		((x & 0x7FF) << 16)
@@ -97,7 +98,8 @@ typedef struct at91_pmc {
 #define AT91_PMC_MCKR_CSS_PLLB		0x00000003
 #define AT91_PMC_MCKR_CSS_MASK		0x00000003
 
-#if defined(CONFIG_SAMA5D3) || defined(CONFIG_SAMA5D4) || \
+#if defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) || \
+	defined(CONFIG_SAMA5D4) || \
 	defined(CONFIG_AT91SAM9X5) || defined(CONFIG_AT91SAM9N12)
 #define AT91_PMC_MCKR_PRES_1		0x00000000
 #define AT91_PMC_MCKR_PRES_2		0x00000010
@@ -127,10 +129,7 @@ typedef struct at91_pmc {
 #else
 #define AT91_PMC_MCKR_MDIV_1		0x00000000
 #define AT91_PMC_MCKR_MDIV_2		0x00000100
-#if defined(CONFIG_SAMA5D3) || defined(CONFIG_SAMA5D4) || \
-	defined(CONFIG_AT91SAM9X5) || defined(CONFIG_AT91SAM9N12)
 #define AT91_PMC_MCKR_MDIV_3		0x00000300
-#endif
 #define AT91_PMC_MCKR_MDIV_4		0x00000200
 #define AT91_PMC_MCKR_MDIV_MASK		0x00000300
 #endif
diff --git a/arch/arm/mach-at91/include/mach/atmel_usba_udc.h b/arch/arm/mach-at91/include/mach/atmel_usba_udc.h
index 38b5012fce..46a329b152 100644
--- a/arch/arm/mach-at91/include/mach/atmel_usba_udc.h
+++ b/arch/arm/mach-at91/include/mach/atmel_usba_udc.h
@@ -31,7 +31,8 @@ static struct usba_ep_data usba_udc_ep[] = {
 	EP("ep5", 5, 1024, 3, 1, 1),
 	EP("ep6", 6, 1024, 3, 1, 1),
 };
-#elif defined(CONFIG_SAMA5D3) || defined(CONFIG_SAMA5D4)
+#elif defined(CONFIG_SAMA5D2) || defined(CONFIG_SAMA5D3) || \
+	defined(CONFIG_SAMA5D4)
 static struct usba_ep_data usba_udc_ep[] = {
 	EP("ep0", 0, 64, 1, 0, 0),
 	EP("ep1", 1, 1024, 3, 1, 0),
diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h
index ff6b71b135..38abfda84e 100644
--- a/arch/arm/mach-at91/include/mach/hardware.h
+++ b/arch/arm/mach-at91/include/mach/hardware.h
@@ -23,6 +23,8 @@
 # include <asm/arch/at91sam9g45.h>
 #elif defined(CONFIG_AT91SAM9N12) || defined(CONFIG_AT91SAM9X5)
 # include <asm/arch/at91sam9x5.h>
+#elif defined(CONFIG_SAMA5D2)
+# include <asm/arch/sama5d2.h>
 #elif defined(CONFIG_SAMA5D3)
 # include <asm/arch/sama5d3.h>
 #elif defined(CONFIG_SAMA5D4)
diff --git a/arch/arm/mach-at91/include/mach/sama5d2.h b/arch/arm/mach-at91/include/mach/sama5d2.h
new file mode 100644
index 0000000000..c85571c999
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/sama5d2.h
@@ -0,0 +1,203 @@
+/*
+ * Chip-specific header file for the SAMA5D2 SoC
+ *
+ * Copyright (C) 2015 Atmel
+ *		      Wenyou Yang <wenyou.yang@atmel.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __SAMA5D2_H
+#define __SAMA5D2_H
+
+/*
+ * definitions to be used in other places
+ */
+#define CONFIG_AT91FAMILY	/* It's a member of AT91 */
+
+/*
+ * Peripheral identifiers/interrupts.
+ */
+#define ATMEL_ID_FIQ		0	/* FIQ Interrupt ID */
+/* 1 */
+#define ATMEL_ID_ARM		2	/* Performance Monitor Unit */
+#define ATMEL_ID_PIT		3	/* Periodic Interval Timer Interrupt */
+#define ATMEL_ID_WDT		4	/* Watchdog Timer Interrupt */
+#define ATMEL_ID_GMAC		5	/* Ethernet MAC */
+#define ATMEL_ID_XDMAC0		6	/* DMA Controller 0 */
+#define ATMEL_ID_XDMAC1		7	/* DMA Controller 1 */
+#define ATMEL_ID_ICM		8	/* Integrity Check Monitor */
+#define ATMEL_ID_AES		9	/* Advanced Encryption Standard */
+#define ATMEL_ID_AESB		10	/* AES bridge */
+#define ATMEL_ID_TDES		11	/* Triple Data Encryption Standard */
+#define ATMEL_ID_SHA		12	/* SHA Signature */
+#define ATMEL_ID_MPDDRC		13	/* MPDDR Controller */
+#define ATMEL_ID_MATRIX1	14	/* H32MX, 32-bit AHB Matrix */
+#define ATMEL_ID_MATRIX0	15	/* H64MX, 64-bit AHB Matrix */
+#define ATMEL_ID_SECUMOD	16	/* Secure Module */
+#define ATMEL_ID_HSMC		17	/* Multi-bit ECC interrupt */
+#define ATMEL_ID_PIOA		18	/* Parallel I/O Controller A */
+#define ATMEL_ID_FLEXCOM0	19	/* FLEXCOM0 */
+#define ATMEL_ID_FLEXCOM1	20	/* FLEXCOM1 */
+#define ATMEL_ID_FLEXCOM2	21	/* FLEXCOM2 */
+#define ATMEL_ID_FLEXCOM3	22	/* FLEXCOM3 */
+#define ATMEL_ID_FLEXCOM4	23	/* FLEXCOM4 */
+#define ATMEL_ID_UART0		24	/* UART0 */
+#define ATMEL_ID_UART1		25	/* UART1 */
+#define ATMEL_ID_UART2		26	/* UART2 */
+#define ATMEL_ID_UART3		27	/* UART3 */
+#define ATMEL_ID_UART4		28	/* UART4 */
+#define ATMEL_ID_TWIHS0		29	/* Two-wire Interface 0 */
+#define ATMEL_ID_TWIHS1		30	/* Two-wire Interface 1 */
+#define ATMEL_ID_SDMMC0		31	/* Secure Data Memory Card Controller 0 */
+#define ATMEL_ID_SDMMC1		32	/* Secure Data Memory Card Controller 1 */
+#define ATMEL_ID_SPI0		33	/* Serial Peripheral Interface 0 */
+#define ATMEL_ID_SPI1		34	/* Serial Peripheral Interface 1 */
+#define ATMEL_ID_TC0		35	/* Timer Counter 0 (ch.0,1,2) */
+#define ATMEL_ID_TC1		36	/* Timer Counter 1 (ch.3,4,5) */
+/* 37 */
+#define ATMEL_ID_PWM		38	/* PWMController0 (ch. 0,1,2,3) */
+/* 39 */
+#define ATMEL_ID_ADC		40	/* Touch Screen ADC Controller */
+#define ATMEL_ID_UHPHS		41	/* USB Host High Speed */
+#define ATMEL_ID_UDPHS		42	/* USB Device High Speed */
+#define ATMEL_ID_SSC0		43	/* Serial Synchronous Controller 0 */
+#define ATMEL_ID_SSC1		44	/* Serial Synchronous Controller 1 */
+#define ATMEL_ID_LCDC		45	/* LCD Controller */
+#define ATMEL_ID_ISI		46	/* Image Sensor Controller, for A5D2, named after ISC */
+#define ATMEL_ID_TRNG		47	/* True Random Number Generator */
+#define ATMEL_ID_PDMIC		48	/* PDM Interface Controller */
+#define ATMEL_ID_AIC_IRQ	49	/* IRQ Interrupt ID */
+#define ATMEL_ID_SFC		50	/* Fuse Controller */
+#define ATMEL_ID_SECURAM	51	/* Secure RAM */
+#define ATMEL_ID_QSPI0		52	/* QSPI0 */
+#define ATMEL_ID_QSPI1		53	/* QSPI1 */
+#define ATMEL_ID_I2SC0		54	/* Inter-IC Sound Controller 0 */
+#define ATMEL_ID_I2SC1		55	/* Inter-IC Sound Controller 1 */
+#define ATMEL_ID_CAN0_INT0	56	/* MCAN 0 Interrupt0 */
+#define ATMEL_ID_CAN1_INT0	57	/* MCAN 1 Interrupt0 */
+/* 58 */
+#define ATMEL_ID_CLASSD		59	/* Audio Class D Amplifier */
+#define ATMEL_ID_SFR		60	/* Special Function Register */
+#define ATMEL_ID_SAIC		61	/* Secured AIC */
+#define ATMEL_ID_AIC		62	/* Advanced Interrupt Controller */
+#define ATMEL_ID_L2CC		63	/* L2 Cache Controller */
+#define ATMEL_ID_CAN0_INT1	64	/* MCAN 0 Interrupt1 */
+#define ATMEL_ID_CAN1_INT1	65	/* MCAN 1 Interrupt1 */
+#define ATMEL_ID_GMAC_Q1	66	/* GMAC Queue 1 Interrupt */
+#define ATMEL_ID_GMAC_Q2	67	/* GMAC Queue 2 Interrupt */
+#define ATMEL_ID_PIOB		68	/* Parallel I/O Controller B */
+#define ATMEL_ID_PIOC		69	/* Parallel I/O Controller C */
+#define ATMEL_ID_PIOD		70	/* Parallel I/O Controller D */
+#define ATMEL_ID_SDMMC0_TIMER	71	/* Secure Data Memory Card Controller 0 (TIMER) */
+#define ATMEL_ID_SDMMC1_TIMER	72	/* Secure Data Memory Card Controller 1 (TIMER) */
+/* 73 */
+#define ATMEL_ID_SYS		74	/* System Controller Interrupt */
+#define ATMEL_ID_ACC		75	/* Analog Comparator */
+#define ATMEL_ID_RXLP		76	/* UART Low-Power */
+#define ATMEL_ID_SFRBU		77	/* Special Function Register BackUp */
+#define ATMEL_ID_CHIPID		78	/* Chip ID */
+
+/*
+ * User Peripherals physical base addresses.
+ */
+#define ATMEL_BASE_LCDC		0xf0000000
+#define ATMEL_BASE_XDMAC1	0xf0004000
+#define ATMEL_BASE_MPDDRC	0xf000c000
+#define ATMEL_BASE_XDMAC0	0xf0010000
+#define ATMEL_BASE_PMC		0xf0014000
+#define ATMEL_BASE_QSPI0	0xf0020000
+#define ATMEL_BASE_QSPI1	0xf0024000
+#define ATMEL_BASE_SPI0		0xf8000000
+#define ATMEL_BASE_GMAC		0xf8008000
+#define ATMEL_BASE_TC0		0xf800c000
+#define ATMEL_BASE_TC1		0xf8010000
+#define ATMEL_BASE_HSMC		0xf8014000
+#define ATMEL_BASE_UART0	0xf801c000
+#define ATMEL_BASE_UART1	0xf8020000
+#define ATMEL_BASE_UART2	0xf8024000
+#define ATMEL_BASE_TWI0		0xf8028000
+#define ATMEL_BASE_SYSC		0xf8048000
+#define ATMEL_BASE_SPI1		0xfc000000
+#define ATMEL_BASE_UART3	0xfc008000
+#define ATMEL_BASE_UART4	0xfc00c000
+#define ATMEL_BASE_TWI1		0xfc028000
+#define ATMEL_BASE_UDPHS	0xfc02c000
+
+#define ATMEL_BASE_PIOA		0xfc038000
+
+#define ATMEL_CHIPID_CIDR	0xfc069000
+#define ATMEL_CHIPID_EXID	0xfc069004
+
+/*
+ * Address Memory Space
+ */
+#define ATMEL_BASE_DDRCS		0x20000000
+#define ATMEL_BASE_QSPI0_AES_MEM	0x90000000
+#define ATMEL_BASE_QSPI1_AES_MEM	0x98000000
+#define ATMEL_BASE_SDMMC0		0xa0000000
+#define ATMEL_BASE_SDMMC1		0xb0000000
+#define ATMEL_BASE_QSPI0_MEM		0xd0000000
+#define ATMEL_BASE_QSPI1_MEM		0xd8000000
+
+/*
+ * Internal Memories
+ */
+#define ATMEL_BASE_UDPHS_FIFO	0x00300000	/* USB Device HS controller */
+#define ATMEL_BASE_OHCI		0x00400000	/* USB Host controller (OHCI) */
+#define ATMEL_BASE_EHCI		0x00500000	/* USB Host controller (EHCI) */
+
+/*
+ * SYSC Spawns
+ */
+#define ATMEL_BASE_RSTC		ATMEL_BASE_SYSC
+#define ATMEL_BASE_SHDWC	(ATMEL_BASE_SYSC + 0x10)
+#define ATMEL_BASE_PIT		(ATMEL_BASE_SYSC + 0x30)
+#define ATMEL_BASE_WDT		(ATMEL_BASE_SYSC + 0x40)
+#define ATMEL_BASE_SCKC		(ATMEL_BASE_SYSC + 0x50)
+#define ATMEL_BASE_RTC		(ATMEL_BASE_SYSC + 0xb0)
+
+/*
+ * Other misc definitions
+ */
+#define ATMEL_BASE_PMECC	(ATMEL_BASE_HSMC + 0x70)
+#define ATMEL_BASE_PMERRLOC	(ATMEL_BASE_HSMC + 0x500)
+
+#define ATMEL_BASE_PIOB		(ATMEL_BASE_PIOA + 0x40)
+#define ATMEL_BASE_PIOC		(ATMEL_BASE_PIOB + 0x40)
+#define ATMEL_BASE_PIOD		(ATMEL_BASE_PIOC + 0x40)
+
+#define ATMEL_PIO_PORTS		4
+#define CPU_HAS_PCR
+#define CPU_HAS_H32MXDIV
+
+/* SAMA5D2 series chip id definitions */
+#define ARCH_ID_SAMA5D2		0x8a5c08c0
+#define ARCH_EXID_SAMA5D21CU	0x0000005a
+#define ARCH_EXID_SAMA5D22CU	0x00000059
+#define ARCH_EXID_SAMA5D22CN	0x00000069
+#define ARCH_EXID_SAMA5D23CU	0x00000058
+#define ARCH_EXID_SAMA5D24CX	0x00000004
+#define ARCH_EXID_SAMA5D24CU	0x00000014
+#define ARCH_EXID_SAMA5D26CU	0x00000012
+#define ARCH_EXID_SAMA5D27CU	0x00000011
+#define ARCH_EXID_SAMA5D27CN	0x00000021
+#define ARCH_EXID_SAMA5D28CU	0x00000010
+#define ARCH_EXID_SAMA5D28CN	0x00000020
+
+#define cpu_is_sama5d2()	(get_chip_id() == ARCH_ID_SAMA5D2)
+
+/* PIT Timer(PIT_PIIR) */
+#define CONFIG_SYS_TIMER_COUNTER	0xf804803c
+
+/* No PMECC Galois table in ROM */
+#define NO_GALOIS_TABLE_IN_ROM
+
+#ifndef __ASSEMBLY__
+unsigned int get_chip_id(void);
+unsigned int get_extension_chip_id(void);
+unsigned int has_lcdc(void);
+char *get_cpu_name(void);
+#endif
+
+#endif