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 <asm-generic/sizes.h>
  17
  18 #include <loongson1.h>
  19
  20 #define LS1X_UART(_id)                                          \
  21         {                                                       \
  22                 .mapbase        = LS1X_UART ## _id ## _BASE,    \
  23                 .irq            = LS1X_UART ## _id ## _IRQ,     \
  24                 .iotype         = UPIO_MEM,                     \
  25                 .flags          = UPF_IOREMAP | UPF_FIXED_TYPE, \
  26                 .type           = PORT_16550A,                  \
  27         }
  28
  29 static struct plat_serial8250_port ls1x_serial8250_port[] = {
  30         LS1X_UART(0),
  31         LS1X_UART(1),
  32         LS1X_UART(2),
  33         LS1X_UART(3),
  34         {},
  35 };
  36
  37 struct platform_device ls1x_uart_device = {
  38         .name           = "serial8250",
  39         .id             = PLAT8250_DEV_PLATFORM,
  40         .dev            = {
  41                 .platform_data = ls1x_serial8250_port,
  42         },
  43 };
  44
  45 void __init ls1x_serial_setup(void)
  46 {
  47         struct clk *clk;
  48         struct plat_serial8250_port *p;
  49
  50         clk = clk_get(NULL, "dc");
  51         if (IS_ERR(clk))
  52                 panic("unable to get dc clock, err=%ld", PTR_ERR(clk));
  53
  54         for (p = ls1x_serial8250_port; p->flags != 0; ++p)
  55                 p->uartclk = clk_get_rate(clk);
  56 }
  57
  58 /* Synopsys Ethernet GMAC */
  59 static struct resource ls1x_eth0_resources[] = {
  60         [0] = {
  61                 .start  = LS1X_GMAC0_BASE,
  62                 .end    = LS1X_GMAC0_BASE + SZ_64K - 1,
  63                 .flags  = IORESOURCE_MEM,
  64         },
  65         [1] = {
  66                 .name   = "macirq",
  67                 .start  = LS1X_GMAC0_IRQ,
  68                 .flags  = IORESOURCE_IRQ,
  69         },
  70 };
  71
  72 static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = {
  73         .bus_id         = 0,
  74         .phy_mask       = 0,
  75 };
  76
  77 static struct plat_stmmacenet_data ls1x_eth_data = {
  78         .bus_id         = 0,
  79         .phy_addr       = -1,
  80         .mdio_bus_data  = &ls1x_mdio_bus_data,
  81         .has_gmac       = 1,
  82         .tx_coe         = 1,
  83 };
  84
  85 struct platform_device ls1x_eth0_device = {
  86         .name           = "stmmaceth",
  87         .id             = 0,
  88         .num_resources  = ARRAY_SIZE(ls1x_eth0_resources),
  89         .resource       = ls1x_eth0_resources,
  90         .dev            = {
  91                 .platform_data = &ls1x_eth_data,
  92         },
  93 };
  94
  95 /* USB EHCI */
  96 static u64 ls1x_ehci_dmamask = DMA_BIT_MASK(32);
  97
  98 static struct resource ls1x_ehci_resources[] = {
  99         [0] = {
 100                 .start  = LS1X_EHCI_BASE,
 101                 .end    = LS1X_EHCI_BASE + SZ_32K - 1,
 102                 .flags  = IORESOURCE_MEM,
 103         },
 104         [1] = {
 105                 .start  = LS1X_EHCI_IRQ,
 106                 .flags  = IORESOURCE_IRQ,
 107         },
 108 };
 109
 110 struct platform_device ls1x_ehci_device = {
 111         .name           = "ls1x-ehci",
 112         .id             = -1,
 113         .num_resources  = ARRAY_SIZE(ls1x_ehci_resources),
 114         .resource       = ls1x_ehci_resources,
 115         .dev            = {
 116                 .dma_mask = &ls1x_ehci_dmamask,
 117         },
 118 };
 119
 120 /* Real Time Clock */
 121 struct platform_device ls1x_rtc_device = {
 122         .name           = "ls1x-rtc",
 123         .id             = -1,
 124 };