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190 lines
4.5 KiB
190 lines
4.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* linux/arch/arm/mach-pxa/xcep.c |
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* |
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* Support for the Iskratel Electronics XCEP platform as used in |
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* the Libera instruments from Instrumentation Technologies. |
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* |
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* Author: Ales Bardorfer <[email protected]> |
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* Contributions by: Abbott, MG (Michael) <[email protected]> |
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* Contributions by: Matej Kenda <[email protected]> |
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* Created: June 2006 |
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* Copyright: (C) 2006-2009 Instrumentation Technologies |
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*/ |
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#include <linux/platform_device.h> |
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#include <linux/i2c.h> |
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#include <linux/platform_data/i2c-pxa.h> |
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#include <linux/smc91x.h> |
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#include <linux/mtd/mtd.h> |
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#include <linux/mtd/partitions.h> |
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#include <linux/mtd/physmap.h> |
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#include <asm/mach-types.h> |
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#include <asm/mach/arch.h> |
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#include <asm/mach/irq.h> |
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#include <asm/mach/map.h> |
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#include <mach/hardware.h> |
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#include "pxa25x.h" |
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#include <mach/smemc.h> |
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#include "generic.h" |
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#include "devices.h" |
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#define XCEP_ETH_PHYS (PXA_CS3_PHYS + 0x00000300) |
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#define XCEP_ETH_PHYS_END (PXA_CS3_PHYS + 0x000fffff) |
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#define XCEP_ETH_ATTR (PXA_CS3_PHYS + 0x02000000) |
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#define XCEP_ETH_ATTR_END (PXA_CS3_PHYS + 0x020fffff) |
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#define XCEP_ETH_IRQ IRQ_GPIO0 |
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/* XCEP CPLD base */ |
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#define XCEP_CPLD_BASE 0xf0000000 |
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/* Flash partitions. */ |
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static struct mtd_partition xcep_partitions[] = { |
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{ |
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.name = "Bootloader", |
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.size = 0x00040000, |
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.offset = 0, |
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.mask_flags = MTD_WRITEABLE |
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}, { |
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.name = "Bootloader ENV", |
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.size = 0x00040000, |
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.offset = 0x00040000, |
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.mask_flags = MTD_WRITEABLE |
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}, { |
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.name = "Kernel", |
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.size = 0x00100000, |
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.offset = 0x00080000, |
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}, { |
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.name = "Rescue fs", |
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.size = 0x00280000, |
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.offset = 0x00180000, |
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}, { |
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.name = "Filesystem", |
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.size = MTDPART_SIZ_FULL, |
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.offset = 0x00400000 |
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} |
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}; |
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static struct physmap_flash_data xcep_flash_data[] = { |
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{ |
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.width = 4, /* bankwidth in bytes */ |
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.parts = xcep_partitions, |
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.nr_parts = ARRAY_SIZE(xcep_partitions) |
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} |
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}; |
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static struct resource flash_resource = { |
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.start = PXA_CS0_PHYS, |
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.end = PXA_CS0_PHYS + SZ_32M - 1, |
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.flags = IORESOURCE_MEM, |
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}; |
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static struct platform_device flash_device = { |
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.name = "physmap-flash", |
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.id = 0, |
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.dev = { |
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.platform_data = xcep_flash_data, |
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}, |
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.resource = &flash_resource, |
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.num_resources = 1, |
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}; |
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/* SMC LAN91C111 network controller. */ |
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static struct resource smc91x_resources[] = { |
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[0] = { |
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.name = "smc91x-regs", |
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.start = XCEP_ETH_PHYS, |
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.end = XCEP_ETH_PHYS_END, |
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.flags = IORESOURCE_MEM, |
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}, |
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[1] = { |
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.start = XCEP_ETH_IRQ, |
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.end = XCEP_ETH_IRQ, |
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.flags = IORESOURCE_IRQ, |
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}, |
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[2] = { |
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.name = "smc91x-attrib", |
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.start = XCEP_ETH_ATTR, |
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.end = XCEP_ETH_ATTR_END, |
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.flags = IORESOURCE_MEM, |
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}, |
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}; |
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static struct smc91x_platdata xcep_smc91x_info = { |
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.flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT | |
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SMC91X_NOWAIT | SMC91X_USE_DMA, |
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}; |
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static struct platform_device smc91x_device = { |
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.name = "smc91x", |
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.id = -1, |
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.num_resources = ARRAY_SIZE(smc91x_resources), |
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.resource = smc91x_resources, |
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.dev = { |
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.platform_data = &xcep_smc91x_info, |
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}, |
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}; |
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static struct platform_device *devices[] __initdata = { |
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&flash_device, |
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&smc91x_device, |
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}; |
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/* We have to state that there are HWMON devices on the I2C bus on XCEP. |
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* Drivers for HWMON verify capabilities of the adapter when loading and |
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* refuse to attach if the adapter doesn't support HWMON class of devices. */ |
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static struct i2c_pxa_platform_data xcep_i2c_platform_data = { |
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.class = I2C_CLASS_HWMON |
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}; |
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static mfp_cfg_t xcep_pin_config[] __initdata = { |
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GPIO79_nCS_3, /* SMC 91C111 chip select. */ |
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GPIO80_nCS_4, /* CPLD chip select. */ |
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/* SSP communication to MSP430 */ |
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GPIO23_SSP1_SCLK, |
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GPIO24_SSP1_SFRM, |
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GPIO25_SSP1_TXD, |
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GPIO26_SSP1_RXD, |
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GPIO27_SSP1_EXTCLK |
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}; |
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static void __init xcep_init(void) |
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{ |
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pxa2xx_mfp_config(ARRAY_AND_SIZE(xcep_pin_config)); |
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pxa_set_ffuart_info(NULL); |
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pxa_set_btuart_info(NULL); |
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pxa_set_stuart_info(NULL); |
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pxa_set_hwuart_info(NULL); |
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/* See Intel XScale Developer's Guide for details */ |
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/* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */ |
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__raw_writel((__raw_readl(MSC1) & 0xffff) | 0xD5540000, MSC1); |
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/* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */ |
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__raw_writel((__raw_readl(MSC2) & 0xffff) | 0x72A00000, MSC2); |
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platform_add_devices(ARRAY_AND_SIZE(devices)); |
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pxa_set_i2c_info(&xcep_i2c_platform_data); |
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} |
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MACHINE_START(XCEP, "Iskratel XCEP") |
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.atag_offset = 0x100, |
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.init_machine = xcep_init, |
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.map_io = pxa25x_map_io, |
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.nr_irqs = PXA_NR_IRQS, |
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.init_irq = pxa25x_init_irq, |
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.handle_irq = pxa25x_handle_irq, |
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.init_time = pxa_timer_init, |
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.restart = pxa_restart, |
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MACHINE_END |
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