arch/arm/mach-iop33x/uart.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * arch/arm/mach-iop33x/uart.c
   4  *
   5  * Author: Dave Jiang (dave.jiang@intel.com)
   6  * Copyright (C) 2004 Intel Corporation.
   7  */
   8
   9 #include <linux/mm.h>
  10 #include <linux/init.h>
  11 #include <linux/major.h>
  12 #include <linux/fs.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/serial.h>
  15 #include <linux/tty.h>
  16 #include <linux/serial_8250.h>
  17 #include <linux/io.h>
  18 #include <asm/pgtable.h>
  19 #include <asm/page.h>
  20 #include <asm/mach/map.h>
  21 #include <asm/setup.h>
  22 #include <asm/memory.h>
  23 #include <mach/hardware.h>
  24 #include <asm/hardware/iop3xx.h>
  25 #include <asm/mach/arch.h>
  26
  27 #define IOP33X_UART_XTAL 33334000
  28
  29 static struct plat_serial8250_port iop33x_uart0_data[] = {
  30         {
  31                 .membase        = (char *)IOP33X_UART0_VIRT,
  32                 .mapbase        = IOP33X_UART0_PHYS,
  33                 .irq            = IRQ_IOP33X_UART0,
  34                 .uartclk        = IOP33X_UART_XTAL,
  35                 .regshift       = 2,
  36                 .iotype         = UPIO_MEM,
  37                 .flags          = UPF_SKIP_TEST,
  38         },
  39         { },
  40 };
  41
  42 static struct resource iop33x_uart0_resources[] = {
  43         [0] = {
  44                 .start  = IOP33X_UART0_PHYS,
  45                 .end    = IOP33X_UART0_PHYS + 0x3f,
  46                 .flags  = IORESOURCE_MEM,
  47         },
  48         [1] = {
  49                 .start  = IRQ_IOP33X_UART0,
  50                 .end    = IRQ_IOP33X_UART0,
  51                 .flags  = IORESOURCE_IRQ,
  52         },
  53 };
  54
  55 struct platform_device iop33x_uart0_device = {
  56         .name           = "serial8250",
  57         .id             = PLAT8250_DEV_PLATFORM,
  58         .dev            = {
  59                 .platform_data          = iop33x_uart0_data,
  60         },
  61         .num_resources  = 2,
  62         .resource       = iop33x_uart0_resources,
  63 };
  64
  65
  66 static struct resource iop33x_uart1_resources[] = {
  67         [0] = {
  68                 .start  = IOP33X_UART1_PHYS,
  69                 .end    = IOP33X_UART1_PHYS + 0x3f,
  70                 .flags  = IORESOURCE_MEM,
  71         },
  72         [1] = {
  73                 .start  = IRQ_IOP33X_UART1,
  74                 .end    = IRQ_IOP33X_UART1,
  75                 .flags  = IORESOURCE_IRQ,
  76         },
  77 };
  78
  79 static struct plat_serial8250_port iop33x_uart1_data[] = {
  80         {
  81                 .membase        = (char *)IOP33X_UART1_VIRT,
  82                 .mapbase        = IOP33X_UART1_PHYS,
  83                 .irq            = IRQ_IOP33X_UART1,
  84                 .uartclk        = IOP33X_UART_XTAL,
  85                 .regshift       = 2,
  86                 .iotype         = UPIO_MEM,
  87                 .flags          = UPF_SKIP_TEST,
  88         },
  89         { },
  90 };
  91
  92 struct platform_device iop33x_uart1_device = {
  93         .name           = "serial8250",
  94         .id             = PLAT8250_DEV_PLATFORM1,
  95         .dev            = {
  96                 .platform_data          = iop33x_uart1_data,
  97         },
  98         .num_resources  = 2,
  99         .resource       = iop33x_uart1_resources,
 100 };