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/*
* Copyright 2004-2009 Analog Devices Inc.
* 2008-2009 Cambridge Signal Processing
* 2005 National ICT Australia (NICTA)
* Aidan Williams <aidan@nicta.com.au>
*
* Licensed under the GPL-2 or later.
*/
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE)
#include <linux/usb/isp1362.h>
#endif
#include <linux/ata_platform.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/usb/sl811.h>
#include <asm/dma.h>
#include <asm/bfin5xx_spi.h>
#include <asm/reboot.h>
#include <linux/spi/ad7877.h>
/*
* Name the Board for the /proc/cpuinfo
*/
char *bfin_board_name = "CamSig Minotaur BF537";
#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
static struct resource bfin_pcmcia_cf_resources[] = {
{
.start = 0x20310000, /* IO PORT */
.end = 0x20312000,
.flags = IORESOURCE_MEM,
}, {
.start = 0x20311000, /* Attribute Memory */
.end = 0x20311FFF,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_PF4,
.end = IRQ_PF4,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
}, {
.start = IRQ_PF6, /* Card Detect PF6 */
.end = IRQ_PF6,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device bfin_pcmcia_cf_device = {
.name = "bfin_cf_pcmcia",
.id = -1,
.num_resources = ARRAY_SIZE(bfin_pcmcia_cf_resources),
.resource = bfin_pcmcia_cf_resources,
};
#endif
#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
static struct platform_device rtc_device = {
.name = "rtc-bfin",
.id = -1,
};
#endif
#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
static struct platform_device bfin_mii_bus = {
.name = "bfin_mii_bus",
};
static struct platform_device bfin_mac_device = {
.name = "bfin_mac",
.dev.platform_data = &bfin_mii_bus,
};
#endif
#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
static struct resource net2272_bfin_resources[] = {
{
.start = 0x20300000,
.end = 0x20300000 + 0x100,
.flags = IORESOURCE_MEM,
}, {
.start = IRQ_PF7,
.end = IRQ_PF7,
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
},
};
static struct platform_device net2272_bfin_device = {
.name = "net2272",
.id = -1,
.num_resources = ARRAY_SIZE(net2272_bfin_resources),
.resource = net2272_bfin_resources,
};
#endif
#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
/* all SPI peripherals info goes here */
#if defined(CONFIG_MTD_M25P80) \
|| defined(CONFIG_MTD_M25P80_MODULE)
/* Partition sizes */
#define FLASH_SIZE 0x00400000
#define PSIZE_UBOOT 0x00030000
#define PSIZE_INITRAMFS 0x00240000
static struct mtd_partition bfin_spi_flash_partitions[] = {
{
.name = "bootloader(spi)",
.size = PSIZE_UBOOT,
.offset = 0x000000,
.mask_flags = MTD_CAP_ROM
}, {
.name = "initramfs(spi)",
.size = PSIZE_INITRAMFS,
.offset = PSIZE_UBOOT
}, {
.name = "opt(spi)",
.size = FLASH_SIZE - (PSIZE_UBOOT + PSIZE_INITRAMFS),
.offset = PSIZE_UBOOT + PSIZE_INITRAMFS,
}
};
static struct flash_platform_data bfin_spi_flash_data = {
.name = "m25p80",
.parts = bfin_spi_flash_partitions,
.nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
.type = "m25p64",
};
/* SPI flash chip (m25p64) */
static struct bfin5xx_spi_chip spi_flash_chip_info = {
.enable_dma = 0, /* use dma transfer with this chip*/
.bits_per_word = 8,
};
#endif
#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
static struct bfin5xx_spi_chip mmc_spi_chip_info = {
.enable_dma = 0,
.bits_per_word = 8,
};
#endif
static struct spi_board_info bfin_spi_board_info[] __initdata = {
#if defined(CONFIG_MTD_M25P80) \
|| defined(CONFIG_MTD_M25P80_MODULE)
{
/* the modalias must be the same as spi device driver name */
.modalias = "m25p80", /* Name of spi_driver for this device */
.max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
.bus_num = 0, /* Framework bus number */
.chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
.platform_data = &bfin_spi_flash_data,
.controller_data = &spi_flash_chip_info,
.mode = SPI_MODE_3,
},
#endif
#if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
{
.modalias = "mmc_spi",
.max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */
.bus_num = 0,
.chip_select = 5,
.controller_data = &mmc_spi_chip_info,
.mode = SPI_MODE_3,
},
#endif
};
/* SPI controller data */
static struct bfin5xx_spi_master bfin_spi0_info = {
.num_chipselect = 8,
.enable_dma = 1, /* master has the ability to do dma transfer */
};
/* SPI (0) */
static struct resource bfin_spi0_resource[] = {
[0] = {
.start = SPI0_REGBASE,
.end = SPI0_REGBASE + 0xFF,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = CH_SPI,
.end = CH_SPI,
.flags = IORESOURCE_DMA,
},
[2] = {
.start = IRQ_SPI,
.end = IRQ_SPI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device bfin_spi0_device = {
.name = "bfin-spi",
.id = 0, /* Bus number */
.num_resources = ARRAY_SIZE(bfin_spi0_resource),
.resource = bfin_spi0_resource,
.dev = {
.platform_data = &bfin_spi0_info, /* Passed to driver */
},
};
#endif /* spi master and devices */
#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
static struct resource bfin_uart_resources[] = {
{
.start = 0xFFC00400,
.end = 0xFFC004FF,
.flags = IORESOURCE_MEM,
}, {
.start = 0xFFC02000,
.end = 0xFFC020FF,
.flags = IORESOURCE_MEM,
},
};
static struct platform_device bfin_uart_device = {
.name = "bfin-uart",
.id = 1,
.num_resources = ARRAY_SIZE(bfin_uart_resources),
.resource = bfin_uart_resources,
};
#endif
#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
#ifdef CONFIG_BFIN_SIR0
static struct resource bfin_sir0_resources[] = {
{
.start = 0xFFC00400,
.end = 0xFFC004FF,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_UART0_RX,
.end = IRQ_UART0_RX+1,
.flags = IORESOURCE_IRQ,
},
{
.start = CH_UART0_RX,
.end = CH_UART0_RX+1,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device bfin_sir0_device = {
.name = "bfin_sir",
.id = 0,
.num_resources = ARRAY_SIZE(bfin_sir0_resources),
.resource = bfin_sir0_resources,
};
#endif
#ifdef CONFIG_BFIN_SIR1
static struct resource bfin_sir1_resources[] = {
{
.start = 0xFFC02000,
.end = 0xFFC020FF,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_UART1_RX,
.end = IRQ_UART1_RX+1,
.flags = IORESOURCE_IRQ,
},
{
.start = CH_UART1_RX,
.end = CH_UART1_RX+1,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device bfin_sir1_device = {
.name = "bfin_sir",
.id = 1,
.num_resources = ARRAY_SIZE(bfin_sir1_resources),
.resource = bfin_sir1_resources,
};
#endif
#endif
#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
static struct resource bfin_twi0_resource[] = {
[0] = {
.start = TWI0_REGBASE,
.end = TWI0_REGBASE + 0xFF,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_TWI,
.end = IRQ_TWI,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device i2c_bfin_twi_device = {
.name = "i2c-bfin-twi",
.id = 0,
.num_resources = ARRAY_SIZE(bfin_twi0_resource),
.resource = bfin_twi0_resource,
};
#endif
#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
static struct platform_device bfin_sport0_uart_device = {
.name = "bfin-sport-uart",
.id = 0,
};
static struct platform_device bfin_sport1_uart_device = {
.name = "bfin-sport-uart",
.id = 1,
};
#endif
static struct platform_device *minotaur_devices[] __initdata = {
#if defined(CONFIG_BFIN_CFPCMCIA) || defined(CONFIG_BFIN_CFPCMCIA_MODULE)
&bfin_pcmcia_cf_device,
#endif
#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
&rtc_device,
#endif
#if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
&bfin_mii_bus,
&bfin_mac_device,
#endif
#if defined(CONFIG_USB_NET2272) || defined(CONFIG_USB_NET2272_MODULE)
&net2272_bfin_device,
#endif
#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
&bfin_spi0_device,
#endif
#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
&bfin_uart_device,
#endif
#if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
#ifdef CONFIG_BFIN_SIR0
&bfin_sir0_device,
#endif
#ifdef CONFIG_BFIN_SIR1
&bfin_sir1_device,
#endif
#endif
#if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
&i2c_bfin_twi_device,
#endif
#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
&bfin_sport0_uart_device,
&bfin_sport1_uart_device,
#endif
};
static int __init minotaur_init(void)
{
printk(KERN_INFO "%s(): registering device resources\n", __func__);
platform_add_devices(minotaur_devices, ARRAY_SIZE(minotaur_devices));
#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
spi_register_board_info(bfin_spi_board_info,
ARRAY_SIZE(bfin_spi_board_info));
#endif
return 0;
}
arch_initcall(minotaur_init);
void native_machine_restart(char *cmd)
{
/* workaround reboot hang when booting from SPI */
if ((bfin_read_SYSCR() & 0x7) == 0x3)
bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
}
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