| // SPDX-License-Identifier: GPL-2.0-only |
| /* 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 |
| */ |
| |
| #include <linux/platform_device.h> |
| #include <linux/i2c.h> |
| #include <linux/platform_data/i2c-pxa.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 "pxa25x.h" |
| #include "addr-map.h" |
| #include "smemc.h" |
| |
| #include "generic.h" |
| #include "devices.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_8BIT | SMC91X_USE_16BIT | 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. */ |
| 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)); |
| |
| pxa_set_ffuart_info(NULL); |
| pxa_set_btuart_info(NULL); |
| pxa_set_stuart_info(NULL); |
| pxa_set_hwuart_info(NULL); |
| |
| /* See Intel XScale Developer's Guide for details */ |
| /* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */ |
| __raw_writel((__raw_readl(MSC1) & 0xffff) | 0xD5540000, MSC1); |
| /* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */ |
| __raw_writel((__raw_readl(MSC2) & 0xffff) | 0x72A00000, MSC2); |
| |
| platform_add_devices(ARRAY_AND_SIZE(devices)); |
| pxa_set_i2c_info(&xcep_i2c_platform_data); |
| } |
| |
| MACHINE_START(XCEP, "Iskratel XCEP") |
| .atag_offset = 0x100, |
| .init_machine = xcep_init, |
| .map_io = pxa25x_map_io, |
| .nr_irqs = PXA_NR_IRQS, |
| .init_irq = pxa25x_init_irq, |
| .handle_irq = pxa25x_handle_irq, |
| .init_time = pxa_timer_init, |
| .restart = pxa_restart, |
| MACHINE_END |
| |