target/linux/cns21xx/patches-3.3/101-cns21xx-serial-support.patch

   1 --- a/arch/arm/mach-cns21xx/common.h
   2 +++ b/arch/arm/mach-cns21xx/common.h
   3 @@ -16,4 +16,7 @@ void cns21xx_init_irq(void);
   4
   5  extern struct sys_timer cns21xx_timer;
   6
   7 +int cns21xx_register_uart0(void);
   8 +int cns21xx_register_uart1(void);
   9 +
  10  #endif /* _MACH_CNS21XX_COMMON_H */
  11 --- /dev/null
  12 +++ b/arch/arm/mach-cns21xx/devices.c
  13 @@ -0,0 +1,79 @@
  14 +/*
  15 + *  Copyright (c) 2008 Cavium Networks
  16 + *  Copyright (c) 2010-2012 Gabor Juhos <juhosg@openwrt.org>
  17 + *
  18 + *  This file is free software; you can redistribute it and/or modify
  19 + *  it under the terms of the GNU General Public License, Version 2, as
  20 + *  published by the Free Software Foundation.
  21 + */
  22 +
  23 +#include <linux/kernel.h>
  24 +#include <linux/init.h>
  25 +#include <linux/platform_device.h>
  26 +#include <linux/serial_8250.h>
  27 +
  28 +#include <mach/irqs.h>
  29 +#include <mach/hardware.h>
  30 +#include <mach/cns21xx.h>
  31 +#include <mach/cns21xx_misc.h>
  32 +
  33 +#define CNS21XX_UART_CLOCK     24000000
  34 +
  35 +#define CNS21XX_UART_FLAGS (UPF_SKIP_TEST | UPF_FIXED_TYPE | UPF_NO_TXEN_TEST)
  36 +
  37 +static struct plat_serial8250_port cns21xx_uart0_data[] = {
  38 +       {
  39 +               .mapbase        = CNS21XX_UART0_BASE,
  40 +               .membase        = (void *) CNS21XX_UART0_BASE_VIRT,
  41 +               .irq            = CNS21XX_IRQ_UART0,
  42 +               .uartclk        = CNS21XX_UART_CLOCK,
  43 +               .regshift       = 2,
  44 +               .iotype         = UPIO_MEM,
  45 +               .type           = PORT_16550A,
  46 +               .flags          = CNS21XX_UART_FLAGS,
  47 +       }, {
  48 +               /* terminating entry */
  49 +       },
  50 +};
  51 +
  52 +static struct platform_device cns21xx_uart0_device = {
  53 +       .name   = "serial8250",
  54 +       .id     = PLAT8250_DEV_PLATFORM,
  55 +       .dev    = {
  56 +               .platform_data = cns21xx_uart0_data,
  57 +       },
  58 +};
  59 +
  60 +int __init cns21xx_register_uart0(void)
  61 +{
  62 +       return platform_device_register(&cns21xx_uart0_device);
  63 +}
  64 +
  65 +static struct plat_serial8250_port cns21xx_uart1_data[] = {
  66 +       {
  67 +               .mapbase        = CNS21XX_UART1_BASE,
  68 +               .membase        = (void *) CNS21XX_UART1_BASE_VIRT,
  69 +               .irq            = CNS21XX_IRQ_UART1,
  70 +               .uartclk        = CNS21XX_UART_CLOCK,
  71 +               .regshift       = 2,
  72 +               .iotype         = UPIO_MEM,
  73 +               .type           = PORT_16550A,
  74 +               .flags          = CNS21XX_UART_FLAGS,
  75 +       }, {
  76 +               /* terminating entry */
  77 +       },
  78 +};
  79 +
  80 +static struct platform_device cns21xx_uart1_device = {
  81 +       .name   = "serial8250",
  82 +       .id     = PLAT8250_DEV_PLATFORM1,
  83 +       .dev    = {
  84 +               .platform_data = cns21xx_uart1_data,
  85 +       },
  86 +};
  87 +
  88 +int __init cns21xx_register_uart1(void)
  89 +{
  90 +       HAL_MISC_ENABLE_UART1_PINS();
  91 +       return platform_device_register(&cns21xx_uart1_device);
  92 +}
  93 --- a/arch/arm/mach-cns21xx/Makefile
  94 +++ b/arch/arm/mach-cns21xx/Makefile
  95 @@ -4,7 +4,7 @@
  96
  97  # Object file lists.
  98
  99 -obj-y          := core.o irq.o mm.o time.o
 100 +obj-y          := core.o devices.o irq.o mm.o time.o
 101
 102  # machine specific files
 103