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rk30:fiq mode serial debugger: enable RX fifo

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hhb
2012-04-07 17:56:38 +08:00
parent 364d9483f7
commit 310dd217ea
1 changed files with 7 additions and 2 deletions
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9
arch/arm/plat-rk/rk_fiq_debugger.c
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@@ -72,8 +72,13 @@ static int debug_port_init(struct platform_device *pdev)
(void)rk_fiq_read(t, UART_RX);
/* enable rx and lsr interrupt */
rk_fiq_write(t, UART_IER_RLSI | UART_IER_RDI, UART_IER);
/* interrupt on every character when receive,but we can enable fifo for TX*/
rk_fiq_write(t, 0x01, UART_FCR);
/* interrupt on every character when receive,but we can enable fifo for TX
I found that if we enable the RX fifo, some problem may vanish such as when
you continuously input characters in the command line the uart irq may be disable
because of the uart irq is served when CPU is at IRQ exception,but it is
found unregistered, so it is disable.
hhb@rock-chips.com */
rk_fiq_write(t, 0xc1, UART_FCR);
return 0;
}