diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2012-10-08 05:44:29 (GMT) |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2012-11-16 06:18:52 (GMT) |
| commit | 49c9e60eaaa966cdb02ac9e989eeb6f940691c5d (patch) | |
| tree | dc07cdb19a2ac15f571067fa52de470c24f29528 /arch/arm/mach-imx | |
| parent | 2a3246713560344254bf96aa00def0cae26d564f (diff) | |
| download | linux-49c9e60eaaa966cdb02ac9e989eeb6f940691c5d.tar.xz | |
ARM: imx6q: let users input debug uart port number
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>
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/lluart.c | 28 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx6q.h | 4 |
2 files changed, 18 insertions, 14 deletions
diff --git a/arch/arm/mach-imx/lluart.c b/arch/arm/mach-imx/lluart.c index 5f15103..2fdc9bf 100644 --- a/arch/arm/mach-imx/lluart.c +++ b/arch/arm/mach-imx/lluart.c @@ -17,17 +17,25 @@ #include "hardware.h" +#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) + static struct map_desc imx_lluart_desc = { -#ifdef CONFIG_DEBUG_IMX6Q_UART2 - .virtual = MX6Q_IO_P2V(MX6Q_UART2_BASE_ADDR), - .pfn = __phys_to_pfn(MX6Q_UART2_BASE_ADDR), - .length = MX6Q_UART2_SIZE, - .type = MT_DEVICE, -#endif -#ifdef CONFIG_DEBUG_IMX6Q_UART4 - .virtual = MX6Q_IO_P2V(MX6Q_UART4_BASE_ADDR), - .pfn = __phys_to_pfn(MX6Q_UART4_BASE_ADDR), - .length = MX6Q_UART4_SIZE, +#ifdef CONFIG_DEBUG_IMX6Q_UART + .virtual = IMX_IO_P2V(IMX6Q_DEBUG_UART_BASE), + .pfn = __phys_to_pfn(IMX6Q_DEBUG_UART_BASE), + .length = 0x4000, .type = MT_DEVICE, #endif }; diff --git a/arch/arm/mach-imx/mx6q.h b/arch/arm/mach-imx/mx6q.h index f7e7dba..19d3f54 100644 --- a/arch/arm/mach-imx/mx6q.h +++ b/arch/arm/mach-imx/mx6q.h @@ -27,9 +27,5 @@ #define MX6Q_CCM_SIZE 0x4000 #define MX6Q_ANATOP_BASE_ADDR 0x020c8000 #define MX6Q_ANATOP_SIZE 0x1000 -#define MX6Q_UART2_BASE_ADDR 0x021e8000 -#define MX6Q_UART2_SIZE 0x4000 -#define MX6Q_UART4_BASE_ADDR 0x021f0000 -#define MX6Q_UART4_SIZE 0x4000 #endif /* __MACH_MX6Q_H__ */ |