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| author | Hemant Pedanekar <hemantp@ti.com> | 2011-02-15 23:06:17 +0530 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2011-02-16 08:31:53 -0800 |
| commit | 4d887a250d6294d4e17851da46d6eab4de83c91e (patch) | |
| tree | 1822f2708901e28f49ef6393e0d7fd5e29948148 /arch/arm | |
| parent | 2c87fb2e644d9141c8723a44a320bb5850790b67 (diff) | |
| download | kernel_samsung_smdk4412-4d887a250d6294d4e17851da46d6eab4de83c91e.zip kernel_samsung_smdk4412-4d887a250d6294d4e17851da46d6eab4de83c91e.tar.gz kernel_samsung_smdk4412-4d887a250d6294d4e17851da46d6eab4de83c91e.tar.bz2 | |
TI816X: Add low level debug support
This patch adds support for low level debugging on TI816X boards. Currently the
support for UART3 console on TI816X EVM is added.
Signed-off-by: Hemant Pedanekar <hemantp@ti.com>
Reviewed-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/debug-macro.S | 12 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/serial.h | 8 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/uncompress.h | 7 |
3 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S index 6a4d413..e1b0f17 100644 --- a/arch/arm/mach-omap2/include/mach/debug-macro.S +++ b/arch/arm/mach-omap2/include/mach/debug-macro.S @@ -69,6 +69,12 @@ omap_uart_lsr: .word 0 beq 34f @ configure OMAP3UART4 cmp \rp, #OMAP4UART4 @ only on 44xx beq 44f @ configure OMAP4UART4 + cmp \rp, #TI816XUART1 @ ti816x UART offsets different + beq 81f @ configure UART1 + cmp \rp, #TI816XUART2 @ ti816x UART offsets different + beq 82f @ configure UART2 + cmp \rp, #TI816XUART3 @ ti816x UART offsets different + beq 83f @ configure UART3 cmp \rp, #ZOOM_UART @ only on zoom2/3 beq 95f @ configure ZOOM_UART @@ -91,6 +97,12 @@ omap_uart_lsr: .word 0 b 98f 44: mov \rp, #UART_OFFSET(OMAP4_UART4_BASE) b 98f +81: mov \rp, #UART_OFFSET(TI816X_UART1_BASE) + b 98f +82: mov \rp, #UART_OFFSET(TI816X_UART2_BASE) + b 98f +83: mov \rp, #UART_OFFSET(TI816X_UART3_BASE) + b 98f 95: ldr \rp, =ZOOM_UART_BASE mrc p15, 0, \rv, c1, c0 tst \rv, #1 @ MMU enabled? diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h index a1a118d..8061695 100644 --- a/arch/arm/plat-omap/include/plat/serial.h +++ b/arch/arm/plat-omap/include/plat/serial.h @@ -51,6 +51,11 @@ #define OMAP4_UART3_BASE 0x48020000 #define OMAP4_UART4_BASE 0x4806e000 +/* TI816X serial ports */ +#define TI816X_UART1_BASE 0x48020000 +#define TI816X_UART2_BASE 0x48022000 +#define TI816X_UART3_BASE 0x48024000 + /* External port on Zoom2/3 */ #define ZOOM_UART_BASE 0x10000000 #define ZOOM_UART_VIRT 0xfa400000 @@ -81,6 +86,9 @@ #define OMAP4UART2 OMAP2UART2 #define OMAP4UART3 43 #define OMAP4UART4 44 +#define TI816XUART1 81 +#define TI816XUART2 82 +#define TI816XUART3 83 #define ZOOM_UART 95 /* Only on zoom2/3 */ /* This is only used by 8250.c for omap1510 */ diff --git a/arch/arm/plat-omap/include/plat/uncompress.h b/arch/arm/plat-omap/include/plat/uncompress.h index ad98b85..30b891c 100644 --- a/arch/arm/plat-omap/include/plat/uncompress.h +++ b/arch/arm/plat-omap/include/plat/uncompress.h @@ -93,6 +93,10 @@ static inline void flush(void) #define DEBUG_LL_ZOOM(mach) \ _DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART) +#define DEBUG_LL_TI816X(p, mach) \ + _DEBUG_LL_ENTRY(mach, TI816X_UART##p##_BASE, OMAP_PORT_SHIFT, \ + TI816XUART##p) + static inline void __arch_decomp_setup(unsigned long arch_id) { int port = 0; @@ -166,6 +170,9 @@ static inline void __arch_decomp_setup(unsigned long arch_id) DEBUG_LL_ZOOM(omap_zoom2); DEBUG_LL_ZOOM(omap_zoom3); + /* TI8168 base boards using UART3 */ + DEBUG_LL_TI816X(3, ti8168evm); + } while (0); } |