Add support for Sysam AMCORE board, an open hardware embedded Linux
board, see http://sysam.it/openzone/projects/amcore/amcore.html for
any info.

Signed-off-by: Angelo Dureghello <[email protected]>
---
 arch/m68k/Kconfig.machine          |   6 ++
 arch/m68k/coldfire/Makefile        |   1 +
 arch/m68k/coldfire/amcore.c        | 191 +++++++++++++++++++++++++++++++++++++
 arch/m68k/configs/amcore_defconfig | 114 ++++++++++++++++++++++
 arch/m68k/include/asm/m5307sim.h   |   7 ++
 5 files changed, 319 insertions(+)
 create mode 100644 arch/m68k/coldfire/amcore.c
 create mode 100644 arch/m68k/configs/amcore_defconfig

diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index 2a5c7ab..9225b4a 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -259,6 +259,12 @@ config M5407C3
        help
          Support for the Motorola M5407C3 board.
 
+config AMCORE
+       bool "Sysam AMCORE board support"
+       depends on M5307
+       help
+         Support for the Sysam AMCORE open-hardware generic board.
+
 config FIREBEE
        bool "FireBee board support"
        depends on M547x
diff --git a/arch/m68k/coldfire/Makefile b/arch/m68k/coldfire/Makefile
index 68f0fac..4aa2c57 100644
--- a/arch/m68k/coldfire/Makefile
+++ b/arch/m68k/coldfire/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_NETtel)  += nettel.o
 obj-$(CONFIG_CLEOPATRA)        += nettel.o
 obj-$(CONFIG_FIREBEE)  += firebee.o
 obj-$(CONFIG_MCF8390)  += mcf8390.o
+obj-$(CONFIG_AMCORE)    += amcore.o
 
 obj-$(CONFIG_PCI)      += pci.o
 
diff --git a/arch/m68k/coldfire/amcore.c b/arch/m68k/coldfire/amcore.c
new file mode 100644
index 0000000..d19a134
--- /dev/null
+++ b/arch/m68k/coldfire/amcore.c
@@ -0,0 +1,191 @@
+/*
+ * amcore.c -- Support for Sysam AMCORE open board
+ *
+ * (C) Copyright 2016, Angelo Dureghello <[email protected]>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/dm9000.h>
+
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+
+#ifdef CONFIG_COLDFIRE
+#include <asm/coldfire.h>
+#include <asm/mcfsim.h>
+#endif
+
+#include <asm/io.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+#include <linux/i2c.h>
+#include <asm/m5307sim.h>
+
+/*
+ * Name the Board for the /proc/cpuinfo
+ */
+const char cf_board_name[] = "Sysam AMCORE";
+
+#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+
+#define DM9000_IRQ     25
+#define DM9000_ADDR    0x30000000
+
+/*
+ * DEVICES and related device RESOURCES
+ */
+static struct resource dm9000_resources[] = {
+       /* physical address of the address register (CMD [A2] to 0)*/
+       [0] = {
+               .start  = DM9000_ADDR,
+               .end    = DM9000_ADDR + 3,
+               .flags  = IORESOURCE_MEM,
+       },
+       /* physical address of the data register (CMD [A2] to 1)*/
+       [1] = {
+               .start  = DM9000_ADDR + 4,
+               .end    = DM9000_ADDR + 4 + 0xff,
+               .flags  = IORESOURCE_MEM,
+       },
+       /* IRQ line the device's interrupt pin is connected to */
+       [2] = {
+               .start  = DM9000_IRQ,
+               .end    = DM9000_IRQ,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct dm9000_plat_data dm9000_platdata = {
+       .flags          = DM9000_PLATF_32BITONLY,
+};
+
+static struct platform_device dm9000_device = {
+       .name           = "dm9000",
+       .id             = 0,
+       .num_resources  = ARRAY_SIZE(dm9000_resources),
+       .resource       = dm9000_resources,
+       .dev = {
+               .platform_data = &dm9000_platdata,
+       }
+};
+#endif
+
+static void __init dm9000_pre_init(void)
+{
+       /* Set the dm9000 interrupt to be auto-vectored */
+       mcf_autovector(DM9000_IRQ);
+}
+
+/*
+ * Partitioning of parallel NOR flash (39VF3201B)
+ */
+static struct mtd_partition amcore_partitions[] = {
+{
+       .name           = "U-Boot (128K)",
+       .size           = 0x20000,
+       .offset         = 0x0
+},
+{
+       .name           = "Kernel+ROMfs (2994K)",
+       .size           = 0x2E0000,
+       .offset         = MTDPART_OFS_APPEND
+},
+{
+       .name           = "Flash Free Space (1024K)",
+       .size           = MTDPART_SIZ_FULL,
+       .offset         = MTDPART_OFS_APPEND
+}
+};
+
+static struct physmap_flash_data flash_data = {
+       .parts          = amcore_partitions,
+       .nr_parts       = ARRAY_SIZE(amcore_partitions),
+       .width          = 2,
+};
+
+static struct resource flash_resource = {
+       .start          = 0xffc00000,
+       .end            = 0xffffffff,
+       .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+       .name           = "physmap-flash",
+       .id             = -1,
+       .resource       = &flash_resource,
+       .num_resources  = 1,
+       .dev            = {
+       .platform_data  = &flash_data,
+       },
+};
+
+static struct resource i2c_resources[] = {
+       {
+               .start  = MCFI2C_IOBASE,
+               .end    = MCFI2C_IOBASE + 0x40,
+               .flags  = IORESOURCE_MEM,
+       },
+       {
+               .start  = MCF_IRQ_I2C,
+               .end    = MCF_IRQ_I2C,
+               .flags  = IORESOURCE_IRQ,
+       },
+};
+
+static struct platform_device i2c_device = {
+       .name           = "mcfi2c",
+       .id             = 0,
+       .num_resources  = ARRAY_SIZE(i2c_resources),
+       .resource       = i2c_resources,
+};
+
+static void __init i2c_init(void)
+{
+       writeb(MCFSIM_ICR_AUTOVEC | MCFSIM_ICR_LEVEL5 | MCFSIM_ICR_PRI0,
+               MCF_MBAR + MCFSIM_I2CICR);
+       mcf_mapirq2imr(MCF_IRQ_I2C, MCFINTC_I2C);
+}
+
+static struct platform_device rtc_device = {
+       .name   = "rtc-ds1307",
+       .id     = -1,
+};
+
+static struct i2c_board_info amcore_i2c_info[] __initdata = {
+       {
+               I2C_BOARD_INFO("ds1338", 0x68),
+       },
+};
+
+static struct platform_device *amcore_devices[] __initdata = {
+#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+       &dm9000_device,
+#endif
+       &flash_device,
+       &rtc_device,
+       &i2c_device,
+};
+
+static int __init init_amcore(void)
+{
+       dm9000_pre_init();
+
+       /* Add i2c RTC Dallas chip supprt */
+       i2c_register_board_info(0, amcore_i2c_info,
+                               ARRAY_SIZE(amcore_i2c_info));
+
+       platform_add_devices(amcore_devices, ARRAY_SIZE(amcore_devices));
+
+       i2c_init();
+
+       return 0;
+}
+
+arch_initcall(init_amcore);
diff --git a/arch/m68k/configs/amcore_defconfig 
b/arch/m68k/configs/amcore_defconfig
new file mode 100644
index 0000000..e94eb24
--- /dev/null
+++ b/arch/m68k/configs/amcore_defconfig
@@ -0,0 +1,114 @@
+CONFIG_LOCALVERSION="amcore-001"
+CONFIG_DEFAULT_HOSTNAME="amcore"
+CONFIG_SYSVIPC=y
+# CONFIG_FHANDLE is not set
+# CONFIG_USELIB is not set
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_AIO is not set
+# CONFIG_ADVISE_SYSCALLS is not set
+# CONFIG_MEMBARRIER is not set
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_MMU is not set
+CONFIG_M5307=y
+CONFIG_AMCORE=y
+CONFIG_UBOOT=y
+CONFIG_RAMSIZE=0x1000000
+CONFIG_KERNELBASE=0x20000
+CONFIG_NOMMU_INITIAL_TRIM_EXCESS=0
+CONFIG_BINFMT_FLAT=y
+# CONFIG_COREDUMP is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+# CONFIG_UEVENT_HELPER is not set
+CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_CONNECTOR=y
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_LE_BYTE_SWAP=y
+CONFIG_MTD_CFI_GEOMETRY=y
+# CONFIG_MTD_CFI_I2 is not set
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_CFI_STAA=y
+CONFIG_MTD_ROM=y
+CONFIG_MTD_COMPLEX_MAPPINGS=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_UCLINUX=y
+CONFIG_MTD_PLATRAM=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_NETDEVICES=y
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+CONFIG_DM9000=y
+# CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
+# CONFIG_NET_VENDOR_QUALCOMM is not set
+# CONFIG_NET_VENDOR_RENESAS is not set
+# CONFIG_NET_VENDOR_ROCKER is not set
+# CONFIG_NET_VENDOR_SAMSUNG is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_UNIX98_PTYS is not set
+# CONFIG_DEVMEM is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=115200
+CONFIG_SERIAL_MCF_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+# CONFIG_I2C_COMPAT is not set
+# CONFIG_I2C_HELPER_AUTO is not set
+CONFIG_PPS=y
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_RTC_CLASS=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+# CONFIG_FILE_LOCKING is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+CONFIG_FSCACHE=y
+# CONFIG_PROC_SYSCTL is not set
+# CONFIG_SYSFS is not set
+CONFIG_JFFS2_FS=y
+CONFIG_ROMFS_FS=y
+CONFIG_ROMFS_BACKED_BY_BOTH=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_PRINTK_TIME=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
+CONFIG_PANIC_ON_OOPS=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+# CONFIG_CRYPTO_ECHAINIV is not set
+CONFIG_CRYPTO_ANSI_CPRNG=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC16=y
diff --git a/arch/m68k/include/asm/m5307sim.h b/arch/m68k/include/asm/m5307sim.h
index 5d0bb7e..81f1afd 100644
--- a/arch/m68k/include/asm/m5307sim.h
+++ b/arch/m68k/include/asm/m5307sim.h
@@ -131,6 +131,11 @@
 #define MCFGPIO_IRQ_MAX                -1
 #define MCFGPIO_IRQ_VECBASE    -1
 
+/*
+ * I2C module.
+ */
+#define MCFI2C_IOBASE          (MCF_MBAR + 0x280)
+
 
 /* Definition offset address for CS2-7  -- old mask 5307 */
 
@@ -148,6 +153,7 @@
 #define        MCFSIM_SWDICR           MCFSIM_ICR0     /* Watchdog timer ICR */
 #define        MCFSIM_TIMER1ICR        MCFSIM_ICR1     /* Timer 1 ICR */
 #define        MCFSIM_TIMER2ICR        MCFSIM_ICR2     /* Timer 2 ICR */
+#define MCFSIM_I2CICR          MCFSIM_ICR3     /* I2C ICR */
 #define        MCFSIM_UART1ICR         MCFSIM_ICR4     /* UART 1 ICR */
 #define        MCFSIM_UART2ICR         MCFSIM_ICR5     /* UART 2 ICR */
 #define        MCFSIM_DMA0ICR          MCFSIM_ICR6     /* DMA 0 ICR */
@@ -174,6 +180,7 @@
 /*
  *     Define system peripheral IRQ usage.
  */
+#define MCF_IRQ_I2C            29              /* I2C */
 #define        MCF_IRQ_TIMER           30              /* Timer0, Level 6 */
 #define        MCF_IRQ_PROFILER        31              /* Timer1, Level 7 */
 #define        MCF_IRQ_UART0           73              /* UART0 */
-- 
2.8.1

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