xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ARM: imx6q: let users input debug uart port number

Browse Source 
imx6q gets 5 uart ports in total.  Different board design may choose
different port as debug uart.  For example, imx6q-sabresd uses UART1,
imx6q-sabrelite uses UART2 and imx6q-arm2 uses UART4.  Rather than
bloating DEBUG_LL choice list with all these uart ports, the patch
introduces DEBUG_IMX6Q_UART_PORT for users to input uart port number
when DEBUG_IMX6Q_UART is selected inside DEBUG_LL choice.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Shawn Guo
2012-10-08 13:44:29 +08:00
parent 2a32467135
commit 49c9e60eaa
4 changed files with 47 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
arch/arm/include/debug/imx.S
View File

@@ -10,6 +10,20 @@
* published by the Free Software Foundation.
*
*/
#define IMX6Q_UART1_BASE_ADDR 0x02020000
#define IMX6Q_UART2_BASE_ADDR 0x021e8000
#define IMX6Q_UART3_BASE_ADDR 0x021ec000
#define IMX6Q_UART4_BASE_ADDR 0x021f0000
#define IMX6Q_UART5_BASE_ADDR 0x021f4000
/*
* IMX6Q_UART_BASE_ADDR is put in the middle to force the expansion
* of IMX6Q_UART##n##_BASE_ADDR.
*/
#define IMX6Q_UART_BASE_ADDR(n) IMX6Q_UART##n##_BASE_ADDR
#define IMX6Q_UART_BASE(n) IMX6Q_UART_BASE_ADDR(n)
#define IMX6Q_DEBUG_UART_BASE IMX6Q_UART_BASE(CONFIG_DEBUG_IMX6Q_UART_PORT)
#ifdef CONFIG_DEBUG_IMX1_UART
#define UART_PADDR 0x00206000
#elif defined (CONFIG_DEBUG_IMX25_UART)
@@ -22,10 +36,8 @@
#define UART_PADDR 0x73fbc000
#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)
#define UART_PADDR 0x53fbc000
#elif defined (CONFIG_DEBUG_IMX6Q_UART2)
#define UART_PADDR 0x021e8000
#elif defined (CONFIG_DEBUG_IMX6Q_UART4)
#define UART_PADDR 0x021f0000
#elif defined (CONFIG_DEBUG_IMX6Q_UART)
#define UART_PADDR IMX6Q_DEBUG_UART_BASE
#endif
/*