target/linux/lantiq/patches-3.2/0031-MIPS-lantiq-convert-falcon-debug-uart-to-clkdev-api.patch

   1 From 96cc1d1baabe7bc6df02e90bcd78e6dde542d384 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Tue, 21 Feb 2012 14:25:21 +0100
   4 Subject: [PATCH 31/73] MIPS: lantiq: convert falcon debug uart to clkdev api
   5
   6 On Falcon SoCs we have a secondary serial port that can be used to help
   7 debug the voice core. For the port to work several clocking bits need to
   8 be activated. We convert the code to clkdev api.
   9
  10 Signed-off-by: John Crispin <blogic@openwrt.org>
  11 ---
  12  arch/mips/lantiq/falcon/prom.c |    4 +---
  13  drivers/tty/serial/lantiq.c    |    7 ++++---
  14  2 files changed, 5 insertions(+), 6 deletions(-)
  15
  16 --- a/arch/mips/lantiq/falcon/prom.c
  17 +++ b/arch/mips/lantiq/falcon/prom.c
  18 @@ -43,10 +43,8 @@ ltq_soc_setup(void)
  19         ltq_register_asc(0);
  20         ltq_register_wdt();
  21         falcon_register_gpio();
  22 -       if (register_asc1) {
  23 +       if (register_asc1)
  24                 ltq_register_asc(1);
  25 -               ltq_sysctl_activate(SYSCTL_SYS1, ACTS_ASC1_ACT);
  26 -       }
  27  }
  28
  29  void __init
  30 --- a/drivers/tty/serial/lantiq.c
  31 +++ b/drivers/tty/serial/lantiq.c
  32 @@ -117,6 +117,7 @@ static DEFINE_SPINLOCK(ltq_asc_lock);
  33
  34  struct ltq_uart_port {
  35         struct uart_port        port;
  36 +       struct clk              *fpiclk;
  37         struct clk              *clk;
  38         unsigned int            tx_irq;
  39         unsigned int            rx_irq;
  40 @@ -319,7 +320,7 @@ lqasc_startup(struct uart_port *port)
  41         struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);
  42         int retval;
  43
  44 -       port->uartclk = clk_get_rate(ltq_port->clk);
  45 +       port->uartclk = clk_get_rate(ltq_port->fpiclk);
  46
  47         ltq_w32_mask(ASCCLC_DISS | ASCCLC_RMCMASK, (1 << ASCCLC_RMCOFFSET),
  48                 port->membase + LTQ_ASC_CLC);
  49 @@ -646,7 +647,7 @@ lqasc_console_setup(struct console *co,
  50
  51         port = &ltq_port->port;
  52
  53 -       port->uartclk = clk_get_rate(ltq_port->clk);
  54 +       port->uartclk = clk_get_rate(ltq_port->fpiclk);
  55
  56         if (options)
  57                 uart_parse_options(options, &baud, &parity, &bits, &flow);
  58 @@ -731,7 +732,7 @@ lqasc_probe(struct platform_device *pdev
  59         port->irq       = tx_irq; /* unused, just to be backward-compatibe */
  60         port->mapbase   = mmres->start;
  61
  62 -       ltq_port->clk   = clk;
  63 +       ltq_port->fpiclk = clk;
  64
  65         ltq_port->tx_irq = tx_irq;
  66         ltq_port->rx_irq = rx_irq;