diff options
Diffstat (limited to 'arch/arm/mach-pnx4008/core.c')
| -rw-r--r-- | arch/arm/mach-pnx4008/core.c | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/arch/arm/mach-pnx4008/core.c b/arch/arm/mach-pnx4008/core.c new file mode 100644 index 00000000000..ba91daad64f --- /dev/null +++ b/arch/arm/mach-pnx4008/core.c @@ -0,0 +1,207 @@ +/* + * arch/arm/mach-pnx4008/core.c + * + * PNX4008 core startup code + * + * Authors: Vitaly Wool, Dmitry Chigirev, + * Grigory Tolstolytkin, Dmitry Pervushin <source@mvista.com> + * + * Based on reference code received from Philips: + * Copyright (C) 2003 Philips Semiconductors + * + * 2005 (c) MontaVista Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/mm.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/serial_8250.h> +#include <linux/device.h> +#include <linux/spi/spi.h> + +#include <asm/hardware.h> +#include <asm/irq.h> +#include <asm/io.h> +#include <asm/setup.h> +#include <asm/mach-types.h> +#include <asm/pgtable.h> +#include <asm/page.h> +#include <asm/system.h> + +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> +#include <asm/mach/map.h> +#include <asm/mach/time.h> + +#include <asm/arch/irq.h> +#include <asm/arch/clock.h> +#include <asm/arch/dma.h> + +struct resource spipnx_0_resources[] = { + { + .start = PNX4008_SPI1_BASE, + .end = PNX4008_SPI1_BASE + SZ_4K, + .flags = IORESOURCE_MEM, + }, { + .start = PER_SPI1_REC_XMIT, + .flags = IORESOURCE_DMA, + }, { + .start = SPI1_INT, + .flags = IORESOURCE_IRQ, + }, { + .flags = 0, + }, +}; + +struct resource spipnx_1_resources[] = { + { + .start = PNX4008_SPI2_BASE, + .end = PNX4008_SPI2_BASE + SZ_4K, + .flags = IORESOURCE_MEM, + }, { + .start = PER_SPI2_REC_XMIT, + .flags = IORESOURCE_DMA, + }, { + .start = SPI2_INT, + .flags = IORESOURCE_IRQ, + }, { + .flags = 0, + } +}; + +static struct spi_board_info spi_board_info[] __initdata = { + { + .modalias = "m25p80", + .max_speed_hz = 1000000, + .bus_num = 1, + .chip_select = 0, + }, +}; + +static struct platform_device spipnx_1 = { + .name = "spipnx", + .id = 1, + .num_resources = ARRAY_SIZE(spipnx_0_resources), + .resource = spipnx_0_resources, + .dev = { + .coherent_dma_mask = 0xFFFFFFFF, + }, +}; + +static struct platform_device spipnx_2 = { + .name = "spipnx", + .id = 2, + .num_resources = ARRAY_SIZE(spipnx_1_resources), + .resource = spipnx_1_resources, + .dev = { + .coherent_dma_mask = 0xFFFFFFFF, + }, +}; + +static struct plat_serial8250_port platform_serial_ports[] = { + { + .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART5_BASE)), + .mapbase = (unsigned long)PNX4008_UART5_BASE, + .irq = IIR5_INT, + .uartclk = PNX4008_UART_CLK, + .regshift = 2, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST, + }, + { + .membase = (void *)__iomem(IO_ADDRESS(PNX4008_UART3_BASE)), + .mapbase = (unsigned long)PNX4008_UART3_BASE, + .irq = IIR3_INT, + .uartclk = PNX4008_UART_CLK, + .regshift = 2, + .iotype = UPIO_MEM, + .flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST, + }, + {} +}; + +static struct platform_device serial_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = &platform_serial_ports, + }, +}; + +static struct platform_device *devices[] __initdata = { + &spipnx_1, + &spipnx_2, + &serial_device, +}; + + +extern void pnx4008_uart_init(void); + +static void __init pnx4008_init(void) +{ + /*disable all START interrupt sources, + and clear all START interrupt flags */ + __raw_writel(0, START_INT_ER_REG(SE_PIN_BASE_INT)); + __raw_writel(0, START_INT_ER_REG(SE_INT_BASE_INT)); + __raw_writel(0xffffffff, START_INT_RSR_REG(SE_PIN_BASE_INT)); + __raw_writel(0xffffffff, START_INT_RSR_REG(SE_INT_BASE_INT)); + + platform_add_devices(devices, ARRAY_SIZE(devices)); + spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info)); + /* Switch on the UART clocks */ + pnx4008_uart_init(); +} + +static struct map_desc pnx4008_io_desc[] __initdata = { + { + .virtual = IO_ADDRESS(PNX4008_IRAM_BASE), + .pfn = __phys_to_pfn(PNX4008_IRAM_BASE), + .length = SZ_64K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(PNX4008_NDF_FLASH_BASE), + .pfn = __phys_to_pfn(PNX4008_NDF_FLASH_BASE), + .length = SZ_1M - SZ_128K, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(PNX4008_JPEG_CONFIG_BASE), + .pfn = __phys_to_pfn(PNX4008_JPEG_CONFIG_BASE), + .length = SZ_128K * 3, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(PNX4008_DMA_CONFIG_BASE), + .pfn = __phys_to_pfn(PNX4008_DMA_CONFIG_BASE), + .length = SZ_1M, + .type = MT_DEVICE, + }, { + .virtual = IO_ADDRESS(PNX4008_AHB2FAB_BASE), + .pfn = __phys_to_pfn(PNX4008_AHB2FAB_BASE), + .length = SZ_1M, + .type = MT_DEVICE, + }, +}; + +void __init pnx4008_map_io(void) +{ + iotable_init(pnx4008_io_desc, ARRAY_SIZE(pnx4008_io_desc)); +} + +extern struct sys_timer pnx4008_timer; + +MACHINE_START(PNX4008, "Philips PNX4008") + /* Maintainer: MontaVista Software Inc. */ + .phys_io = 0x40090000, + .io_pg_offst = (0xf4090000 >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = pnx4008_map_io, + .init_irq = pnx4008_init_irq, + .init_machine = pnx4008_init, + .timer = &pnx4008_timer, +MACHINE_END |