diff options
| author | Jun Nie <jun.nie@linaro.org> | 2015-04-28 11:18:07 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2015-05-15 21:49:27 +0200 |
| commit | 58d0398535647e1bb03e552d2f571d1dee55398c (patch) | |
| tree | 355fbefe78f9f3ef8681abfb2002fbfc5470ae1c /arch | |
| parent | ARM: zx: add basic support for ZTE ZX296702 (diff) | |
| download | linux-58d0398535647e1bb03e552d2f571d1dee55398c.tar.xz linux-58d0398535647e1bb03e552d2f571d1dee55398c.zip | |
ARM: zx: add low level debug support for zx296702
Use the UART0 peripheral for low level debug. Only the UART port 0 is
currently supported.
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig.debug | 14 | ||||
| -rw-r--r-- | arch/arm/include/debug/pl01x.S | 7 |
2 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 8e354a710d0b..1515cb642372 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -1166,6 +1166,18 @@ choice For more details about semihosting, please see chapter 8 of DUI0203I_rvct_developer_guide.pdf from ARM Ltd. + config DEBUG_ZTE_ZX + bool "Use ZTE ZX UART" + select DEBUG_UART_PL01X + depends on ARCH_ZX + help + Say Y here if you are enabling ZTE ZX296702 SOC and need + debug uart support. + + This option is preferred over the platform specific + options; the platform specific options are deprecated + and will be soon removed. + config DEBUG_LL_UART_8250 bool "Kernel low-level debugging via 8250 UART" help @@ -1346,6 +1358,7 @@ config DEBUG_UART_PHYS default 0x02531000 if DEBUG_KEYSTONE_UART1 default 0x03010fe0 if ARCH_RPC default 0x07000000 if DEBUG_SUN9I_UART0 + default 0x09405000 if DEBUG_ZTE_ZX default 0x10009000 if DEBUG_REALVIEW_STD_PORT || \ DEBUG_VEXPRESS_UART0_CA9 default 0x1010c000 if DEBUG_REALVIEW_PB1176_PORT @@ -1477,6 +1490,7 @@ config DEBUG_UART_VIRT default 0xfb009000 if DEBUG_REALVIEW_STD_PORT default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT default 0xfc40ab00 if DEBUG_BRCMSTB_UART + default 0xfc705000 if DEBUG_ZTE_ZX default 0xfcfe8600 if DEBUG_UART_BCM63XX default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX default 0xfd000000 if ARCH_SPEAR13XX diff --git a/arch/arm/include/debug/pl01x.S b/arch/arm/include/debug/pl01x.S index 92ef808a2337..f7d8323cefcc 100644 --- a/arch/arm/include/debug/pl01x.S +++ b/arch/arm/include/debug/pl01x.S @@ -12,6 +12,13 @@ */ #include <linux/amba/serial.h> +#ifdef CONFIG_DEBUG_ZTE_ZX +#undef UART01x_DR +#undef UART01x_FR +#define UART01x_DR 0x04 +#define UART01x_FR 0x14 +#endif + #ifdef CONFIG_DEBUG_UART_PHYS .macro addruart, rp, rv, tmp ldr \rp, =CONFIG_DEBUG_UART_PHYS |