3 files changed, 204 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index d1dcb1cf0758..b3cdfe55c031 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -504,6 +504,21 @@ config MACH_EZX_E2
         default y
         depends on PXA_EZX
 
+config MACH_XCEP
+        bool "Iskratel Electronics XCEP"
+        select PXA25x
+        select MTD
+        select MTD_PARTITIONS
+        select MTD_PHYSMAP
+        select MTD_CFI_INTELEXT
+        select MTD_CFI
+        select MTD_CHAR
+        select SMC91X
+        select PXA_SSP
+        help
+          PXA255 based Single Board Computer with SMC 91C111 ethernet chip and 64 MB of flash.
+          Tuned for usage in Libera instruments for particle accelerators.
+
 endmenu
 
 config PXA25x
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index aa8f83e9421e..c9890a124cf3 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -79,6 +79,8 @@ obj-$(CONFIG_MACH_ARMCORE)      += cm-x2xx.o cm-x255.o cm-x270.o
 obj-$(CONFIG_MACH_CM_X300)      += cm-x300.o
 obj-$(CONFIG_PXA_EZX)           += ezx.o
 
+obj-$(CONFIG_MACH_XCEP)         += xcep.o
+
 obj-$(CONFIG_MACH_INTELMOTE2)   += imote2.o
 obj-$(CONFIG_MACH_STARGATE2)    += stargate2.o
 obj-$(CONFIG_MACH_CSB726)       += csb726.o
diff --git a/arch/arm/mach-pxa/xcep.c b/arch/arm/mach-pxa/xcep.c
new file mode 100644
index 000000000000..3fd79cbb36c8
--- /dev/null
+++ b/arch/arm/mach-pxa/xcep.c
@@ -0,0 +1,187 @@
+/*  linux/arch/arm/mach-pxa/xcep.c
+ *
+ *  Support for the Iskratel Electronics XCEP platform as used in
+ *  the Libera instruments from Instrumentation Technologies.
+ *
+ *  Author:     Ales Bardorfer <ales@i-tech.si>
+ *  Contributions by: Abbott, MG (Michael) <michael.abbott@diamond.ac.uk>
+ *  Contributions by: Matej Kenda <matej.kenda@i-tech.si>
+ *  Created:    June 2006
+ *  Copyright:  (C) 2006-2009 Instrumentation Technologies
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/smc91x.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/map.h>
+
+#include <plat/i2c.h>
+
+#include <mach/hardware.h>
+#include <mach/pxa2xx-regs.h>
+#include <mach/mfp-pxa25x.h>
+
+#include "generic.h"
+
+#define XCEP_ETH_PHYS           (PXA_CS3_PHYS + 0x00000300)
+#define XCEP_ETH_PHYS_END       (PXA_CS3_PHYS + 0x000fffff)
+#define XCEP_ETH_ATTR           (PXA_CS3_PHYS + 0x02000000)
+#define XCEP_ETH_ATTR_END       (PXA_CS3_PHYS + 0x020fffff)
+#define XCEP_ETH_IRQ            IRQ_GPIO0
+
+/*  XCEP CPLD base */
+#define XCEP_CPLD_BASE          0xf0000000
+
+
+/* Flash partitions. */
+
+static struct mtd_partition xcep_partitions[] = {
+        {
+                .name =         "Bootloader",
+                .size =         0x00040000,
+                .offset =       0,
+                .mask_flags =   MTD_WRITEABLE
+        }, {
+                .name =         "Bootloader ENV",
+                .size =         0x00040000,
+                .offset =       0x00040000,
+                .mask_flags =   MTD_WRITEABLE
+        }, {
+                .name =         "Kernel",
+                .size =         0x00100000,
+                .offset =       0x00080000,
+        }, {
+                .name =         "Rescue fs",
+                .size =         0x00280000,
+                .offset =       0x00180000,
+        }, {
+                .name =         "Filesystem",
+                .size =         MTDPART_SIZ_FULL,
+                .offset =       0x00400000
+        }
+};
+
+static struct physmap_flash_data xcep_flash_data[] = {
+        {
+                .width          = 4,            /* bankwidth in bytes */
+                .parts          = xcep_partitions,
+                .nr_parts       = ARRAY_SIZE(xcep_partitions)
+        }
+};
+
+static struct resource flash_resource = {
+        .start  = PXA_CS0_PHYS,
+        .end    = PXA_CS0_PHYS + SZ_32M - 1,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct platform_device flash_device = {
+        .name   = "physmap-flash",
+        .id     = 0,
+        .dev    = {
+                .platform_data = xcep_flash_data,
+        },
+        .resource = &flash_resource,
+        .num_resources = 1,
+};
+
+
+
+/* SMC LAN91C111 network controller. */
+
+static struct resource smc91x_resources[] = {
+        [0] = {
+                .name   = "smc91x-regs",
+                .start  = XCEP_ETH_PHYS,
+                .end    = XCEP_ETH_PHYS_END,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = XCEP_ETH_IRQ,
+                .end    = XCEP_ETH_IRQ,
+                .flags  = IORESOURCE_IRQ,
+        },
+        [2] = {
+                .name   = "smc91x-attrib",
+                .start  = XCEP_ETH_ATTR,
+                .end    = XCEP_ETH_ATTR_END,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct smc91x_platdata xcep_smc91x_info = {
+        .flags  = SMC91X_USE_32BIT | SMC91X_NOWAIT | SMC91X_USE_DMA,
+};
+
+static struct platform_device smc91x_device = {
+        .name           = "smc91x",
+        .id             = -1,
+        .num_resources  = ARRAY_SIZE(smc91x_resources),
+        .resource       = smc91x_resources,
+        .dev            = {
+                .platform_data = &xcep_smc91x_info,
+        },
+};
+
+
+static struct platform_device *devices[] __initdata = {
+        &flash_device,
+        &smc91x_device,
+};
+
+
+/* We have to state that there are HWMON devices on the I2C bus on XCEP.
+ * Drivers for HWMON verify capabilities of the adapter when loading and
+ * refuse to attach if the adapter doesn't support HWMON class of devices.
+ * See also Documentation/i2c/porting-clients. */
+static struct i2c_pxa_platform_data xcep_i2c_platform_data  = {
+        .class = I2C_CLASS_HWMON
+};
+
+
+static mfp_cfg_t xcep_pin_config[] __initdata = {
+        GPIO79_nCS_3,   /* SMC 91C111 chip select. */
+        GPIO80_nCS_4,   /* CPLD chip select. */
+        /* SSP communication to MSP430 */
+        GPIO23_SSP1_SCLK,
+        GPIO24_SSP1_SFRM,
+        GPIO25_SSP1_TXD,
+        GPIO26_SSP1_RXD,
+        GPIO27_SSP1_EXTCLK
+};
+
+static void __init xcep_init(void)
+{
+        pxa2xx_mfp_config(ARRAY_AND_SIZE(xcep_pin_config));
+
+        /* See Intel XScale Developer's Guide for details */
+        /* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */
+        MSC1 = (MSC1 & 0xffff) | 0xD5540000;
+        /* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */
+        MSC2 = (MSC2 & 0xffff) | 0x72A00000;
+
+        platform_add_devices(ARRAY_AND_SIZE(devices));
+        pxa_set_i2c_info(&xcep_i2c_platform_data);
+}
+
+MACHINE_START(XCEP, "Iskratel XCEP")
+        .phys_io        = 0x40000000,
+        .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
+        .boot_params    = 0xa0000100,
+        .init_machine   = xcep_init,
+        .map_io         = pxa_map_io,
+        .init_irq       = pxa25x_init_irq,
+        .timer          = &pxa_timer,
+MACHINE_END
+