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arm: add debug uarts for rockchip rk29xx and rk3xxx series

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Uarts on all recent Rockchip SoCs are Synopsis DesignWare 8250 types.
Only their addresses vary very much.

This patch adds the necessary definitions to use any of the uart ports
for early debug purposes.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Heiko Stuebner
2013-05-28 22:13:52 +02:00
parent 8b57b00483
commit 38bd6892ab
2 changed files with 76 additions and 0 deletions
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42
arch/arm/include/debug/rockchip.S Normal file
View File

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/*
* Early serial output macro for Rockchip SoCs
*
* Copyright (C) 2012 Maxime Ripard
*
* Maxime Ripard <maxime.ripard@free-electrons.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#if defined(CONFIG_DEBUG_RK29_UART0)
#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20060000
#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed60000
#elif defined(CONFIG_DEBUG_RK29_UART1)
#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20064000
#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed64000
#elif defined(CONFIG_DEBUG_RK29_UART2)
#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20068000
#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed68000
#elif defined(CONFIG_DEBUG_RK3X_UART0)
#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x10124000
#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfeb24000
#elif defined(CONFIG_DEBUG_RK3X_UART1)
#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x10126000
#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfeb26000
#elif defined(CONFIG_DEBUG_RK3X_UART2)
#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20064000
#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed64000
#elif defined(CONFIG_DEBUG_RK3X_UART3)
#define ROCKCHIP_UART_DEBUG_PHYS_BASE 0x20068000
#define ROCKCHIP_UART_DEBUG_VIRT_BASE 0xfed68000
#endif
.macro addruart, rp, rv, tmp
ldr \rp, =ROCKCHIP_UART_DEBUG_PHYS_BASE
ldr \rv, =ROCKCHIP_UART_DEBUG_VIRT_BASE
.endm
#define UART_SHIFT 2
#include <asm/hardware/debug-8250.S>