arch/mips/pnx833x/common/platform.c

   1 /*
   2  *  platform.c: platform support for PNX833X.
   3  *
   4  *  Copyright 2008 NXP Semiconductors
   5  *        Chris Steel <chris.steel@nxp.com>
   6  *    Daniel Laird <daniel.j.laird@nxp.com>
   7  *
   8  *  Based on software written by:
   9  *      Nikita Youshchenko <yoush@debian.org>, based on PNX8550 code.
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; either version 2 of the License, or
  14  *  (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the Free Software
  23  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24  */
  25 #include <linux/device.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/platform_device.h>
  28 #include <linux/kernel.h>
  29 #include <linux/init.h>
  30 #include <linux/resource.h>
  31 #include <linux/serial.h>
  32 #include <linux/serial_pnx8xxx.h>
  33 #include <linux/mtd/platnand.h>
  34
  35 #include <irq.h>
  36 #include <irq-mapping.h>
  37 #include <pnx833x.h>
  38
  39 static u64 uart_dmamask     = DMA_BIT_MASK(32);
  40
  41 static struct resource pnx833x_uart_resources[] = {
  42         [0] = {
  43                 .start          = PNX833X_UART0_PORTS_START,
  44                 .end            = PNX833X_UART0_PORTS_END,
  45                 .flags          = IORESOURCE_MEM,
  46         },
  47         [1] = {
  48                 .start          = PNX833X_PIC_UART0_INT,
  49                 .end            = PNX833X_PIC_UART0_INT,
  50                 .flags          = IORESOURCE_IRQ,
  51         },
  52         [2] = {
  53                 .start          = PNX833X_UART1_PORTS_START,
  54                 .end            = PNX833X_UART1_PORTS_END,
  55                 .flags          = IORESOURCE_MEM,
  56         },
  57         [3] = {
  58                 .start          = PNX833X_PIC_UART1_INT,
  59                 .end            = PNX833X_PIC_UART1_INT,
  60                 .flags          = IORESOURCE_IRQ,
  61         },
  62 };
  63
  64 struct pnx8xxx_port pnx8xxx_ports[] = {
  65         [0] = {
  66                 .port   = {
  67                         .type           = PORT_PNX8XXX,
  68                         .iotype         = UPIO_MEM,
  69                         .membase        = (void __iomem *)PNX833X_UART0_PORTS_START,
  70                         .mapbase        = PNX833X_UART0_PORTS_START,
  71                         .irq            = PNX833X_PIC_UART0_INT,
  72                         .uartclk        = 3692300,
  73                         .fifosize       = 16,
  74                         .flags          = UPF_BOOT_AUTOCONF,
  75                         .line           = 0,
  76                 },
  77         },
  78         [1] = {
  79                 .port   = {
  80                         .type           = PORT_PNX8XXX,
  81                         .iotype         = UPIO_MEM,
  82                         .membase        = (void __iomem *)PNX833X_UART1_PORTS_START,
  83                         .mapbase        = PNX833X_UART1_PORTS_START,
  84                         .irq            = PNX833X_PIC_UART1_INT,
  85                         .uartclk        = 3692300,
  86                         .fifosize       = 16,
  87                         .flags          = UPF_BOOT_AUTOCONF,
  88                         .line           = 1,
  89                 },
  90         },
  91 };
  92
  93 static struct platform_device pnx833x_uart_device = {
  94         .name           = "pnx8xxx-uart",
  95         .id             = -1,
  96         .dev = {
  97                 .dma_mask               = &uart_dmamask,
  98                 .coherent_dma_mask      = DMA_BIT_MASK(32),
  99                 .platform_data          = pnx8xxx_ports,
 100         },
 101         .num_resources  = ARRAY_SIZE(pnx833x_uart_resources),
 102         .resource       = pnx833x_uart_resources,
 103 };
 104
 105 static u64 ehci_dmamask     = DMA_BIT_MASK(32);
 106
 107 static struct resource pnx833x_usb_ehci_resources[] = {
 108         [0] = {
 109                 .start          = PNX833X_USB_PORTS_START,
 110                 .end            = PNX833X_USB_PORTS_END,
 111                 .flags          = IORESOURCE_MEM,
 112         },
 113         [1] = {
 114                 .start          = PNX833X_PIC_USB_INT,
 115                 .end            = PNX833X_PIC_USB_INT,
 116                 .flags          = IORESOURCE_IRQ,
 117         },
 118 };
 119
 120 static struct platform_device pnx833x_usb_ehci_device = {
 121         .name           = "pnx833x-ehci",
 122         .id             = -1,
 123         .dev = {
 124                 .dma_mask               = &ehci_dmamask,
 125                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 126         },
 127         .num_resources  = ARRAY_SIZE(pnx833x_usb_ehci_resources),
 128         .resource       = pnx833x_usb_ehci_resources,
 129 };
 130
 131 static u64 ethernet_dmamask = DMA_BIT_MASK(32);
 132
 133 static struct resource pnx833x_ethernet_resources[] = {
 134         [0] = {
 135                 .start = PNX8335_IP3902_PORTS_START,
 136                 .end   = PNX8335_IP3902_PORTS_END,
 137                 .flags = IORESOURCE_MEM,
 138         },
 139 #ifdef CONFIG_SOC_PNX8335
 140         [1] = {
 141                 .start = PNX8335_PIC_ETHERNET_INT,
 142                 .end   = PNX8335_PIC_ETHERNET_INT,
 143                 .flags = IORESOURCE_IRQ,
 144         },
 145 #endif
 146 };
 147
 148 static struct platform_device pnx833x_ethernet_device = {
 149         .name = "ip3902-eth",
 150         .id   = -1,
 151         .dev  = {
 152                 .dma_mask          = &ethernet_dmamask,
 153                 .coherent_dma_mask = DMA_BIT_MASK(32),
 154         },
 155         .num_resources = ARRAY_SIZE(pnx833x_ethernet_resources),
 156         .resource      = pnx833x_ethernet_resources,
 157 };
 158
 159 static struct resource pnx833x_sata_resources[] = {
 160         [0] = {
 161                 .start = PNX8335_SATA_PORTS_START,
 162                 .end   = PNX8335_SATA_PORTS_END,
 163                 .flags = IORESOURCE_MEM,
 164         },
 165         [1] = {
 166                 .start = PNX8335_PIC_SATA_INT,
 167                 .end   = PNX8335_PIC_SATA_INT,
 168                 .flags = IORESOURCE_IRQ,
 169         },
 170 };
 171
 172 static struct platform_device pnx833x_sata_device = {
 173         .name          = "pnx833x-sata",
 174         .id            = -1,
 175         .num_resources = ARRAY_SIZE(pnx833x_sata_resources),
 176         .resource      = pnx833x_sata_resources,
 177 };
 178
 179 static void
 180 pnx833x_flash_nand_cmd_ctrl(struct nand_chip *this, int cmd, unsigned int ctrl)
 181 {
 182         unsigned long nandaddr = (unsigned long)this->legacy.IO_ADDR_W;
 183
 184         if (cmd == NAND_CMD_NONE)
 185                 return;
 186
 187         if (ctrl & NAND_CLE)
 188                 writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_CLE_MASK));
 189         else
 190                 writeb(cmd, (void __iomem *)(nandaddr + PNX8335_NAND_ALE_MASK));
 191 }
 192
 193 static struct platform_nand_data pnx833x_flash_nand_data = {
 194         .chip = {
 195                 .nr_chips               = 1,
 196                 .chip_delay             = 25,
 197         },
 198         .ctrl = {
 199                 .cmd_ctrl               = pnx833x_flash_nand_cmd_ctrl
 200         }
 201 };
 202
 203 /*
 204  * Set start to be the correct address (PNX8335_NAND_BASE with no 0xb!!),
 205  * 12 bytes more seems to be the standard that allows for NAND access.
 206  */
 207 static struct resource pnx833x_flash_nand_resource = {
 208         .start  = PNX8335_NAND_BASE,
 209         .end    = PNX8335_NAND_BASE + 12,
 210         .flags  = IORESOURCE_MEM,
 211 };
 212
 213 static struct platform_device pnx833x_flash_nand = {
 214         .name           = "gen_nand",
 215         .id                     = -1,
 216         .num_resources  = 1,
 217         .resource           = &pnx833x_flash_nand_resource,
 218         .dev            = {
 219                 .platform_data = &pnx833x_flash_nand_data,
 220         },
 221 };
 222
 223 static struct platform_device *pnx833x_platform_devices[] __initdata = {
 224         &pnx833x_uart_device,
 225         &pnx833x_usb_ehci_device,
 226         &pnx833x_ethernet_device,
 227         &pnx833x_sata_device,
 228         &pnx833x_flash_nand,
 229 };
 230
 231 static int __init pnx833x_platform_init(void)
 232 {
 233         return platform_add_devices(pnx833x_platform_devices,
 234                                     ARRAY_SIZE(pnx833x_platform_devices));
 235 }
 236
 237 arch_initcall(pnx833x_platform_init);