Logo Search packages:      
Sourcecode: linux version File versions  Download package

common.c

/*
 * arch/arm/mach-orion5x/common.c
 *
 * Core functions for Marvell Orion 5x SoCs
 *
 * Maintainer: Tzachi Perelstein <tzachi@marvell.com>
 *
 * 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/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/mbus.h>
#include <linux/mv643xx_eth.h>
#include <linux/mv643xx_i2c.h>
#include <linux/ata_platform.h>
#include <linux/spi/orion_spi.h>
#include <net/dsa.h>
#include <asm/page.h>
#include <asm/setup.h>
#include <asm/timex.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <mach/hardware.h>
#include <mach/orion5x.h>
#include <plat/ehci-orion.h>
#include <plat/mv_xor.h>
#include <plat/orion_nand.h>
#include <plat/orion_wdt.h>
#include <plat/time.h>
#include "common.h"

/*****************************************************************************
 * I/O Address Mapping
 ****************************************************************************/
static struct map_desc orion5x_io_desc[] __initdata = {
      {
            .virtual    = ORION5X_REGS_VIRT_BASE,
            .pfn        = __phys_to_pfn(ORION5X_REGS_PHYS_BASE),
            .length           = ORION5X_REGS_SIZE,
            .type       = MT_DEVICE,
      }, {
            .virtual    = ORION5X_PCIE_IO_VIRT_BASE,
            .pfn        = __phys_to_pfn(ORION5X_PCIE_IO_PHYS_BASE),
            .length           = ORION5X_PCIE_IO_SIZE,
            .type       = MT_DEVICE,
      }, {
            .virtual    = ORION5X_PCI_IO_VIRT_BASE,
            .pfn        = __phys_to_pfn(ORION5X_PCI_IO_PHYS_BASE),
            .length           = ORION5X_PCI_IO_SIZE,
            .type       = MT_DEVICE,
      }, {
            .virtual    = ORION5X_PCIE_WA_VIRT_BASE,
            .pfn        = __phys_to_pfn(ORION5X_PCIE_WA_PHYS_BASE),
            .length           = ORION5X_PCIE_WA_SIZE,
            .type       = MT_DEVICE,
      },
};

void __init orion5x_map_io(void)
{
      iotable_init(orion5x_io_desc, ARRAY_SIZE(orion5x_io_desc));
}


/*****************************************************************************
 * EHCI
 ****************************************************************************/
static struct orion_ehci_data orion5x_ehci_data = {
      .dram       = &orion5x_mbus_dram_info,
      .phy_version      = EHCI_PHY_ORION,
};

static u64 ehci_dmamask = 0xffffffffUL;


/*****************************************************************************
 * EHCI0
 ****************************************************************************/
static struct resource orion5x_ehci0_resources[] = {
      {
            .start      = ORION5X_USB0_PHYS_BASE,
            .end  = ORION5X_USB0_PHYS_BASE + SZ_4K - 1,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_ORION5X_USB0_CTRL,
            .end  = IRQ_ORION5X_USB0_CTRL,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_ehci0 = {
      .name       = "orion-ehci",
      .id         = 0,
      .dev        = {
            .dma_mask         = &ehci_dmamask,
            .coherent_dma_mask      = 0xffffffff,
            .platform_data          = &orion5x_ehci_data,
      },
      .resource   = orion5x_ehci0_resources,
      .num_resources    = ARRAY_SIZE(orion5x_ehci0_resources),
};

void __init orion5x_ehci0_init(void)
{
      platform_device_register(&orion5x_ehci0);
}


/*****************************************************************************
 * EHCI1
 ****************************************************************************/
static struct resource orion5x_ehci1_resources[] = {
      {
            .start      = ORION5X_USB1_PHYS_BASE,
            .end  = ORION5X_USB1_PHYS_BASE + SZ_4K - 1,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_ORION5X_USB1_CTRL,
            .end  = IRQ_ORION5X_USB1_CTRL,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_ehci1 = {
      .name       = "orion-ehci",
      .id         = 1,
      .dev        = {
            .dma_mask         = &ehci_dmamask,
            .coherent_dma_mask      = 0xffffffff,
            .platform_data          = &orion5x_ehci_data,
      },
      .resource   = orion5x_ehci1_resources,
      .num_resources    = ARRAY_SIZE(orion5x_ehci1_resources),
};

void __init orion5x_ehci1_init(void)
{
      platform_device_register(&orion5x_ehci1);
}


/*****************************************************************************
 * GigE
 ****************************************************************************/
struct mv643xx_eth_shared_platform_data orion5x_eth_shared_data = {
      .dram       = &orion5x_mbus_dram_info,
};

static struct resource orion5x_eth_shared_resources[] = {
      {
            .start      = ORION5X_ETH_PHYS_BASE + 0x2000,
            .end  = ORION5X_ETH_PHYS_BASE + 0x3fff,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_ORION5X_ETH_ERR,
            .end  = IRQ_ORION5X_ETH_ERR,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_eth_shared = {
      .name       = MV643XX_ETH_SHARED_NAME,
      .id         = 0,
      .dev        = {
            .platform_data    = &orion5x_eth_shared_data,
      },
      .num_resources    = ARRAY_SIZE(orion5x_eth_shared_resources),
      .resource   = orion5x_eth_shared_resources,
};

static struct resource orion5x_eth_resources[] = {
      {
            .name = "eth irq",
            .start      = IRQ_ORION5X_ETH_SUM,
            .end  = IRQ_ORION5X_ETH_SUM,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_eth = {
      .name       = MV643XX_ETH_NAME,
      .id         = 0,
      .num_resources    = 1,
      .resource   = orion5x_eth_resources,
      .dev        = {
            .coherent_dma_mask      = 0xffffffff,
      },
};

void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
{
      eth_data->shared = &orion5x_eth_shared;
      orion5x_eth.dev.platform_data = eth_data;

      platform_device_register(&orion5x_eth_shared);
      platform_device_register(&orion5x_eth);
}


/*****************************************************************************
 * Ethernet switch
 ****************************************************************************/
static struct resource orion5x_switch_resources[] = {
      {
            .start      = 0,
            .end  = 0,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_switch_device = {
      .name       = "dsa",
      .id         = 0,
      .num_resources    = 0,
      .resource   = orion5x_switch_resources,
};

void __init orion5x_eth_switch_init(struct dsa_platform_data *d, int irq)
{
      int i;

      if (irq != NO_IRQ) {
            orion5x_switch_resources[0].start = irq;
            orion5x_switch_resources[0].end = irq;
            orion5x_switch_device.num_resources = 1;
      }

      d->netdev = &orion5x_eth.dev;
      for (i = 0; i < d->nr_chips; i++)
            d->chip[i].mii_bus = &orion5x_eth_shared.dev;
      orion5x_switch_device.dev.platform_data = d;

      platform_device_register(&orion5x_switch_device);
}


/*****************************************************************************
 * I2C
 ****************************************************************************/
static struct mv64xxx_i2c_pdata orion5x_i2c_pdata = {
      .freq_m           = 8, /* assumes 166 MHz TCLK */
      .freq_n           = 3,
      .timeout    = 1000, /* Default timeout of 1 second */
};

static struct resource orion5x_i2c_resources[] = {
      {
            .start      = I2C_PHYS_BASE,
            .end  = I2C_PHYS_BASE + 0x1f,
            .flags      = IORESOURCE_MEM,
      }, {
            .start      = IRQ_ORION5X_I2C,
            .end  = IRQ_ORION5X_I2C,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_i2c = {
      .name       = MV64XXX_I2C_CTLR_NAME,
      .id         = 0,
      .num_resources    = ARRAY_SIZE(orion5x_i2c_resources),
      .resource   = orion5x_i2c_resources,
      .dev        = {
            .platform_data    = &orion5x_i2c_pdata,
      },
};

void __init orion5x_i2c_init(void)
{
      platform_device_register(&orion5x_i2c);
}


/*****************************************************************************
 * SATA
 ****************************************************************************/
static struct resource orion5x_sata_resources[] = {
      {
            .name = "sata base",
            .start      = ORION5X_SATA_PHYS_BASE,
            .end  = ORION5X_SATA_PHYS_BASE + 0x5000 - 1,
            .flags      = IORESOURCE_MEM,
      }, {
            .name = "sata irq",
            .start      = IRQ_ORION5X_SATA,
            .end  = IRQ_ORION5X_SATA,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_sata = {
      .name       = "sata_mv",
      .id         = 0,
      .dev        = {
            .coherent_dma_mask      = 0xffffffff,
      },
      .num_resources    = ARRAY_SIZE(orion5x_sata_resources),
      .resource   = orion5x_sata_resources,
};

void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
{
      sata_data->dram = &orion5x_mbus_dram_info;
      orion5x_sata.dev.platform_data = sata_data;
      platform_device_register(&orion5x_sata);
}


/*****************************************************************************
 * SPI
 ****************************************************************************/
static struct orion_spi_info orion5x_spi_plat_data = {
      .tclk             = 0,
      .enable_clock_fix = 1,
};

static struct resource orion5x_spi_resources[] = {
      {
            .name = "spi base",
            .start      = SPI_PHYS_BASE,
            .end  = SPI_PHYS_BASE + 0x1f,
            .flags      = IORESOURCE_MEM,
      },
};

static struct platform_device orion5x_spi = {
      .name       = "orion_spi",
      .id         = 0,
      .dev        = {
            .platform_data    = &orion5x_spi_plat_data,
      },
      .num_resources    = ARRAY_SIZE(orion5x_spi_resources),
      .resource   = orion5x_spi_resources,
};

void __init orion5x_spi_init()
{
      platform_device_register(&orion5x_spi);
}


/*****************************************************************************
 * UART0
 ****************************************************************************/
static struct plat_serial8250_port orion5x_uart0_data[] = {
      {
            .mapbase    = UART0_PHYS_BASE,
            .membase    = (char *)UART0_VIRT_BASE,
            .irq        = IRQ_ORION5X_UART0,
            .flags            = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
            .iotype           = UPIO_MEM,
            .regshift   = 2,
            .uartclk    = 0,
      }, {
      },
};

static struct resource orion5x_uart0_resources[] = {
      {
            .start            = UART0_PHYS_BASE,
            .end        = UART0_PHYS_BASE + 0xff,
            .flags            = IORESOURCE_MEM,
      }, {
            .start            = IRQ_ORION5X_UART0,
            .end        = IRQ_ORION5X_UART0,
            .flags            = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_uart0 = {
      .name             = "serial8250",
      .id               = PLAT8250_DEV_PLATFORM,
      .dev              = {
            .platform_data    = orion5x_uart0_data,
      },
      .resource         = orion5x_uart0_resources,
      .num_resources          = ARRAY_SIZE(orion5x_uart0_resources),
};

void __init orion5x_uart0_init(void)
{
      platform_device_register(&orion5x_uart0);
}


/*****************************************************************************
 * UART1
 ****************************************************************************/
static struct plat_serial8250_port orion5x_uart1_data[] = {
      {
            .mapbase    = UART1_PHYS_BASE,
            .membase    = (char *)UART1_VIRT_BASE,
            .irq        = IRQ_ORION5X_UART1,
            .flags            = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
            .iotype           = UPIO_MEM,
            .regshift   = 2,
            .uartclk    = 0,
      }, {
      },
};

static struct resource orion5x_uart1_resources[] = {
      {
            .start            = UART1_PHYS_BASE,
            .end        = UART1_PHYS_BASE + 0xff,
            .flags            = IORESOURCE_MEM,
      }, {
            .start            = IRQ_ORION5X_UART1,
            .end        = IRQ_ORION5X_UART1,
            .flags            = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_uart1 = {
      .name             = "serial8250",
      .id               = PLAT8250_DEV_PLATFORM1,
      .dev              = {
            .platform_data    = orion5x_uart1_data,
      },
      .resource         = orion5x_uart1_resources,
      .num_resources          = ARRAY_SIZE(orion5x_uart1_resources),
};

void __init orion5x_uart1_init(void)
{
      platform_device_register(&orion5x_uart1);
}


/*****************************************************************************
 * XOR engine
 ****************************************************************************/
struct mv_xor_platform_shared_data orion5x_xor_shared_data = {
      .dram       = &orion5x_mbus_dram_info,
};

static struct resource orion5x_xor_shared_resources[] = {
      {
            .name = "xor low",
            .start      = ORION5X_XOR_PHYS_BASE,
            .end  = ORION5X_XOR_PHYS_BASE + 0xff,
            .flags      = IORESOURCE_MEM,
      }, {
            .name = "xor high",
            .start      = ORION5X_XOR_PHYS_BASE + 0x200,
            .end  = ORION5X_XOR_PHYS_BASE + 0x2ff,
            .flags      = IORESOURCE_MEM,
      },
};

static struct platform_device orion5x_xor_shared = {
      .name       = MV_XOR_SHARED_NAME,
      .id         = 0,
      .dev        = {
            .platform_data    = &orion5x_xor_shared_data,
      },
      .num_resources    = ARRAY_SIZE(orion5x_xor_shared_resources),
      .resource   = orion5x_xor_shared_resources,
};

static u64 orion5x_xor_dmamask = DMA_BIT_MASK(32);

static struct resource orion5x_xor0_resources[] = {
      [0] = {
            .start      = IRQ_ORION5X_XOR0,
            .end  = IRQ_ORION5X_XOR0,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct mv_xor_platform_data orion5x_xor0_data = {
      .shared           = &orion5x_xor_shared,
      .hw_id            = 0,
      .pool_size  = PAGE_SIZE,
};

static struct platform_device orion5x_xor0_channel = {
      .name       = MV_XOR_NAME,
      .id         = 0,
      .num_resources    = ARRAY_SIZE(orion5x_xor0_resources),
      .resource   = orion5x_xor0_resources,
      .dev        = {
            .dma_mask         = &orion5x_xor_dmamask,
            .coherent_dma_mask      = DMA_BIT_MASK(64),
            .platform_data          = (void *)&orion5x_xor0_data,
      },
};

static struct resource orion5x_xor1_resources[] = {
      [0] = {
            .start      = IRQ_ORION5X_XOR1,
            .end  = IRQ_ORION5X_XOR1,
            .flags      = IORESOURCE_IRQ,
      },
};

static struct mv_xor_platform_data orion5x_xor1_data = {
      .shared           = &orion5x_xor_shared,
      .hw_id            = 1,
      .pool_size  = PAGE_SIZE,
};

static struct platform_device orion5x_xor1_channel = {
      .name       = MV_XOR_NAME,
      .id         = 1,
      .num_resources    = ARRAY_SIZE(orion5x_xor1_resources),
      .resource   = orion5x_xor1_resources,
      .dev        = {
            .dma_mask         = &orion5x_xor_dmamask,
            .coherent_dma_mask      = DMA_BIT_MASK(64),
            .platform_data          = (void *)&orion5x_xor1_data,
      },
};

void __init orion5x_xor_init(void)
{
      platform_device_register(&orion5x_xor_shared);

      /*
       * two engines can't do memset simultaneously, this limitation
       * satisfied by removing memset support from one of the engines.
       */
      dma_cap_set(DMA_MEMCPY, orion5x_xor0_data.cap_mask);
      dma_cap_set(DMA_XOR, orion5x_xor0_data.cap_mask);
      platform_device_register(&orion5x_xor0_channel);

      dma_cap_set(DMA_MEMCPY, orion5x_xor1_data.cap_mask);
      dma_cap_set(DMA_MEMSET, orion5x_xor1_data.cap_mask);
      dma_cap_set(DMA_XOR, orion5x_xor1_data.cap_mask);
      platform_device_register(&orion5x_xor1_channel);
}

static struct resource orion5x_crypto_res[] = {
      {
            .name   = "regs",
            .start  = ORION5X_CRYPTO_PHYS_BASE,
            .end    = ORION5X_CRYPTO_PHYS_BASE + 0xffff,
            .flags  = IORESOURCE_MEM,
      }, {
            .name   = "sram",
            .start  = ORION5X_SRAM_PHYS_BASE,
            .end    = ORION5X_SRAM_PHYS_BASE + SZ_8K - 1,
            .flags  = IORESOURCE_MEM,
      }, {
            .name   = "crypto interrupt",
            .start  = IRQ_ORION5X_CESA,
            .end    = IRQ_ORION5X_CESA,
            .flags  = IORESOURCE_IRQ,
      },
};

static struct platform_device orion5x_crypto_device = {
      .name           = "mv_crypto",
      .id             = -1,
      .num_resources  = ARRAY_SIZE(orion5x_crypto_res),
      .resource       = orion5x_crypto_res,
};

static int __init orion5x_crypto_init(void)
{
      int ret;

      ret = orion5x_setup_sram_win();
      if (ret)
            return ret;

      return platform_device_register(&orion5x_crypto_device);
}

/*****************************************************************************
 * Watchdog
 ****************************************************************************/
static struct orion_wdt_platform_data orion5x_wdt_data = {
      .tclk             = 0,
};

static struct platform_device orion5x_wdt_device = {
      .name       = "orion_wdt",
      .id         = -1,
      .dev        = {
            .platform_data    = &orion5x_wdt_data,
      },
      .num_resources    = 0,
};

void __init orion5x_wdt_init(void)
{
      orion5x_wdt_data.tclk = orion5x_tclk;
      platform_device_register(&orion5x_wdt_device);
}


/*****************************************************************************
 * Time handling
 ****************************************************************************/
int orion5x_tclk;

int __init orion5x_find_tclk(void)
{
      u32 dev, rev;

      orion5x_pcie_id(&dev, &rev);
      if (dev == MV88F6183_DEV_ID &&
          (readl(MPP_RESET_SAMPLE) & 0x00000200) == 0)
            return 133333333;

      return 166666667;
}

static void orion5x_timer_init(void)
{
      orion5x_tclk = orion5x_find_tclk();
      orion_time_init(IRQ_ORION5X_BRIDGE, orion5x_tclk);
}

struct sys_timer orion5x_timer = {
      .init = orion5x_timer_init,
};


/*****************************************************************************
 * General
 ****************************************************************************/
/*
 * Identify device ID and rev from PCIe configuration header space '0'.
 */
static void __init orion5x_id(u32 *dev, u32 *rev, char **dev_name)
{
      orion5x_pcie_id(dev, rev);

      if (*dev == MV88F5281_DEV_ID) {
            if (*rev == MV88F5281_REV_D2) {
                  *dev_name = "MV88F5281-D2";
            } else if (*rev == MV88F5281_REV_D1) {
                  *dev_name = "MV88F5281-D1";
            } else if (*rev == MV88F5281_REV_D0) {
                  *dev_name = "MV88F5281-D0";
            } else {
                  *dev_name = "MV88F5281-Rev-Unsupported";
            }
      } else if (*dev == MV88F5182_DEV_ID) {
            if (*rev == MV88F5182_REV_A2) {
                  *dev_name = "MV88F5182-A2";
            } else {
                  *dev_name = "MV88F5182-Rev-Unsupported";
            }
      } else if (*dev == MV88F5181_DEV_ID) {
            if (*rev == MV88F5181_REV_B1) {
                  *dev_name = "MV88F5181-Rev-B1";
            } else if (*rev == MV88F5181L_REV_A1) {
                  *dev_name = "MV88F5181L-Rev-A1";
            } else {
                  *dev_name = "MV88F5181(L)-Rev-Unsupported";
            }
      } else if (*dev == MV88F6183_DEV_ID) {
            if (*rev == MV88F6183_REV_B0) {
                  *dev_name = "MV88F6183-Rev-B0";
            } else {
                  *dev_name = "MV88F6183-Rev-Unsupported";
            }
      } else {
            *dev_name = "Device-Unknown";
      }
}

void __init orion5x_init(void)
{
      char *dev_name;
      u32 dev, rev;

      orion5x_id(&dev, &rev, &dev_name);
      printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);

      orion5x_eth_shared_data.t_clk = orion5x_tclk;
      orion5x_spi_plat_data.tclk = orion5x_tclk;
      orion5x_uart0_data[0].uartclk = orion5x_tclk;
      orion5x_uart1_data[0].uartclk = orion5x_tclk;

      /*
       * Setup Orion address map
       */
      orion5x_setup_cpu_mbus_bridge();

      /*
       * Don't issue "Wait for Interrupt" instruction if we are
       * running on D0 5281 silicon.
       */
      if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
            printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
            disable_hlt();
      }

      /*
       * The 5082/5181l/5182/6082/6082l/6183 have crypto
       * while 5180n/5181/5281 don't have crypto.
       */
      if ((dev == MV88F5181_DEV_ID && rev >= MV88F5181L_REV_A0) ||
          dev == MV88F5182_DEV_ID || dev == MV88F6183_DEV_ID)
            orion5x_crypto_init();

      /*
       * Register watchdog driver
       */
      orion5x_wdt_init();
}

/*
 * Many orion-based systems have buggy bootloader implementations.
 * This is a common fixup for bogus memory tags.
 */
void __init tag_fixup_mem32(struct machine_desc *mdesc, struct tag *t,
                      char **from, struct meminfo *meminfo)
{
      for (; t->hdr.size; t = tag_next(t))
            if (t->hdr.tag == ATAG_MEM &&
                (!t->u.mem.size || t->u.mem.size & ~PAGE_MASK ||
                 t->u.mem.start & ~PAGE_MASK)) {
                  printk(KERN_WARNING
                         "Clearing invalid memory bank %dKB@0x%08x\n",
                         t->u.mem.size / 1024, t->u.mem.start);
                  t->hdr.tag = 0;
            }
}

Generated by  Doxygen 1.6.0   Back to index