arch/mips/loongson1/common/platform.c

   1 /*
   2  * Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
   3  *
   4  * This program is free software; you can redistribute  it and/or modify it
   5  * under  the terms of  the GNU General  Public License as published by the
   6  * Free Software Foundation;  either version 2 of the  License, or (at your
   7  * option) any later version.
   8  */
   9
  10 #include <linux/clk.h>
  11 #include <linux/dma-mapping.h>
  12 #include <linux/err.h>
  13 #include <linux/phy.h>
  14 #include <linux/serial_8250.h>
  15 #include <linux/stmmac.h>
  16 #include <linux/usb/ehci_pdriver.h>
  17 #include <asm-generic/sizes.h>
  18
  19 #include <loongson1.h>
  20
  21 #define LS1X_UART(_id)                                          \
  22         {                                                       \
  23                 .mapbase        = LS1X_UART ## _id ## _BASE,    \
  24                 .irq            = LS1X_UART ## _id ## _IRQ,     \
  25                 .iotype         = UPIO_MEM,                     \
  26                 .flags          = UPF_IOREMAP | UPF_FIXED_TYPE, \
  27                 .type           = PORT_16550A,                  \
  28         }
  29
  30 static struct plat_serial8250_port ls1x_serial8250_port[] = {
  31         LS1X_UART(0),
  32         LS1X_UART(1),
  33         LS1X_UART(2),
  34         LS1X_UART(3),
  35         {},
  36 };
  37
  38 struct platform_device ls1x_uart_device = {
  39         .name           = "serial8250",
  40         .id             = PLAT8250_DEV_PLATFORM,
  41         .dev            = {
  42                 .platform_data = ls1x_serial8250_port,
  43         },
  44 };
  45
  46 void __init ls1x_serial_setup(void)
  47 {
  48         struct clk *clk;
  49         struct plat_serial8250_port *p;
  50
  51         clk = clk_get(NULL, "dc");
  52         if (IS_ERR(clk))
  53                 panic("unable to get dc clock, err=%ld", PTR_ERR(clk));
  54
  55         for (p = ls1x_serial8250_port; p->flags != 0; ++p)
  56                 p->uartclk = clk_get_rate(clk);
  57 }
  58
  59 /* Synopsys Ethernet GMAC */
  60 static struct resource ls1x_eth0_resources[] = {
  61         [0] = {
  62                 .start  = LS1X_GMAC0_BASE,
  63                 .end    = LS1X_GMAC0_BASE + SZ_64K - 1,
  64                 .flags  = IORESOURCE_MEM,
  65         },
  66         [1] = {
  67                 .name   = "macirq",
  68                 .start  = LS1X_GMAC0_IRQ,
  69                 .flags  = IORESOURCE_IRQ,
  70         },
  71 };
  72
  73 static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = {
  74         .bus_id         = 0,
  75         .phy_mask       = 0,
  76 };
  77
  78 static struct plat_stmmacenet_data ls1x_eth_data = {
  79         .bus_id         = 0,
  80         .phy_addr       = -1,
  81         .mdio_bus_data  = &ls1x_mdio_bus_data,
  82         .has_gmac       = 1,
  83         .tx_coe         = 1,
  84 };
  85
  86 struct platform_device ls1x_eth0_device = {
  87         .name           = "stmmaceth",
  88         .id             = 0,
  89         .num_resources  = ARRAY_SIZE(ls1x_eth0_resources),
  90         .resource       = ls1x_eth0_resources,
  91         .dev            = {
  92                 .platform_data = &ls1x_eth_data,
  93         },
  94 };
  95
  96 /* USB EHCI */
  97 static u64 ls1x_ehci_dmamask = DMA_BIT_MASK(32);
  98
  99 static struct resource ls1x_ehci_resources[] = {
 100         [0] = {
 101                 .start  = LS1X_EHCI_BASE,
 102                 .end    = LS1X_EHCI_BASE + SZ_32K - 1,
 103                 .flags  = IORESOURCE_MEM,
 104         },
 105         [1] = {
 106                 .start  = LS1X_EHCI_IRQ,
 107                 .flags  = IORESOURCE_IRQ,
 108         },
 109 };
 110
 111 static struct usb_ehci_pdata ls1x_ehci_pdata = {
 112         .port_power_off = 1,
 113 };
 114
 115 struct platform_device ls1x_ehci_device = {
 116         .name           = "ehci-platform",
 117         .id             = -1,
 118         .num_resources  = ARRAY_SIZE(ls1x_ehci_resources),
 119         .resource       = ls1x_ehci_resources,
 120         .dev            = {
 121                 .dma_mask = &ls1x_ehci_dmamask,
 122                 .platform_data = &ls1x_ehci_pdata,
 123         },
 124 };
 125
 126 /* Real Time Clock */
 127 struct platform_device ls1x_rtc_device = {
 128         .name           = "ls1x-rtc",
 129         .id             = -1,
 130 };