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authorGraeme Russ <graeme.russ@gmail.com>2011-09-01 00:48:27 +0000
committerWolfgang Denk <wd@denx.de>2011-10-05 22:03:09 +0200
commit9558b48af006a34d3ab7f0bd13a76b97acd45e47 (patch)
treed2fbeae7e5f2ef15cc7194fd21d504229259f2de /arch
parentcc9abfe4ceb360e9adedc4ed44eae0fcc3fd184c (diff)
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console: Implement pre-console buffer
Allow redirection of console output prior to console initialisation to a temporary buffer. To enable this functionality, the board (or arch) must define: - CONFIG_PRE_CONSOLE_BUFFER - Enable pre-console buffer - CONFIG_PRE_CON_BUF_ADDR - Base address of pre-console buffer - CONFIG_PRE_CON_BUF_SZ - Size of pre-console buffer (in bytes) The pre-console buffer will buffer the last CONFIG_PRE_CON_BUF_SZ bytes Any earlier characters are silently dropped.
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/asm/global_data.h3
-rw-r--r--arch/avr32/include/asm/global_data.h3
-rw-r--r--arch/blackfin/include/asm/global_data.h3
-rw-r--r--arch/m68k/include/asm/global_data.h3
-rw-r--r--arch/microblaze/include/asm/global_data.h3
-rw-r--r--arch/mips/include/asm/global_data.h3
-rw-r--r--arch/nios2/include/asm/global_data.h3
-rw-r--r--arch/powerpc/include/asm/global_data.h3
-rw-r--r--arch/sh/include/asm/global_data.h3
-rw-r--r--arch/sparc/include/asm/global_data.h3
-rw-r--r--arch/x86/include/asm/global_data.h3
11 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h
index 4fc51fd..b85b7fe 100644
--- a/arch/arm/include/asm/global_data.h
+++ b/arch/arm/include/asm/global_data.h
@@ -38,6 +38,9 @@ typedef struct global_data {
unsigned long flags;
unsigned long baudrate;
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid? */
unsigned long fb_base; /* base address of frame buffer */
diff --git a/arch/avr32/include/asm/global_data.h b/arch/avr32/include/asm/global_data.h
index 4ef8fc5..5c654bd 100644
--- a/arch/avr32/include/asm/global_data.h
+++ b/arch/avr32/include/asm/global_data.h
@@ -38,6 +38,9 @@ typedef struct global_data {
unsigned long baudrate;
unsigned long stack_end; /* highest stack address */
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
unsigned long reloc_off; /* Relocation Offset */
unsigned long env_addr; /* Address of env struct */
unsigned long env_valid; /* Checksum of env valid? */
diff --git a/arch/blackfin/include/asm/global_data.h b/arch/blackfin/include/asm/global_data.h
index eba5e93..f7aa711 100644
--- a/arch/blackfin/include/asm/global_data.h
+++ b/arch/blackfin/include/asm/global_data.h
@@ -45,6 +45,9 @@ typedef struct global_data {
unsigned long board_type;
unsigned long baudrate;
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
phys_size_t ram_size; /* RAM size */
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid? */
diff --git a/arch/m68k/include/asm/global_data.h b/arch/m68k/include/asm/global_data.h
index fc486fd..0ba2b43 100644
--- a/arch/m68k/include/asm/global_data.h
+++ b/arch/m68k/include/asm/global_data.h
@@ -57,6 +57,9 @@ typedef struct global_data {
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid? */
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
unsigned long fb_base; /* Base addr of framebuffer memory */
#endif
diff --git a/arch/microblaze/include/asm/global_data.h b/arch/microblaze/include/asm/global_data.h
index 557ad27..6e8537c 100644
--- a/arch/microblaze/include/asm/global_data.h
+++ b/arch/microblaze/include/asm/global_data.h
@@ -39,6 +39,9 @@ typedef struct global_data {
unsigned long flags;
unsigned long baudrate;
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid? */
unsigned long fb_base; /* base address of frame buffer */
diff --git a/arch/mips/include/asm/global_data.h b/arch/mips/include/asm/global_data.h
index 271a290..b193517 100644
--- a/arch/mips/include/asm/global_data.h
+++ b/arch/mips/include/asm/global_data.h
@@ -41,6 +41,9 @@ typedef struct global_data {
unsigned long flags;
unsigned long baudrate;
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
phys_size_t ram_size; /* RAM size */
unsigned long reloc_off; /* Relocation Offset */
unsigned long env_addr; /* Address of Environment struct */
diff --git a/arch/nios2/include/asm/global_data.h b/arch/nios2/include/asm/global_data.h
index 2c4a719..d9f0664 100644
--- a/arch/nios2/include/asm/global_data.h
+++ b/arch/nios2/include/asm/global_data.h
@@ -29,6 +29,9 @@ typedef struct global_data {
unsigned long baudrate;
unsigned long cpu_clk; /* CPU clock in Hz! */
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
phys_size_t ram_size; /* RAM size */
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid */
diff --git a/arch/powerpc/include/asm/global_data.h b/arch/powerpc/include/asm/global_data.h
index a33ca2f..7fcaf38 100644
--- a/arch/powerpc/include/asm/global_data.h
+++ b/arch/powerpc/include/asm/global_data.h
@@ -138,6 +138,9 @@ typedef struct global_data {
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid? */
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
#if defined(CONFIG_SYS_ALLOC_DPRAM) || defined(CONFIG_CPM2)
unsigned int dp_alloc_base;
unsigned int dp_alloc_top;
diff --git a/arch/sh/include/asm/global_data.h b/arch/sh/include/asm/global_data.h
index 0c09ba9..1b782fc 100644
--- a/arch/sh/include/asm/global_data.h
+++ b/arch/sh/include/asm/global_data.h
@@ -34,6 +34,9 @@ typedef struct global_data
unsigned long baudrate;
unsigned long cpu_clk; /* CPU clock in Hz! */
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
phys_size_t ram_size; /* RAM size */
unsigned long env_addr; /* Address of Environment struct */
unsigned long env_valid; /* Checksum of Environment valid */
diff --git a/arch/sparc/include/asm/global_data.h b/arch/sparc/include/asm/global_data.h
index 9b14674..a1e4b44 100644
--- a/arch/sparc/include/asm/global_data.h
+++ b/arch/sparc/include/asm/global_data.h
@@ -53,6 +53,9 @@ typedef struct global_data {
unsigned long env_valid; /* Checksum of Environment valid? */
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
unsigned long fb_base; /* Base address of framebuffer memory */
#endif
diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index f8a16d6..f177a4f 100644
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -40,6 +40,9 @@ typedef struct global_data {
unsigned long flags;
unsigned long baudrate;
unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+ unsigned long precon_buf_idx; /* Pre-Console buffer index */
+#endif
unsigned long reloc_off; /* Relocation Offset */
unsigned long load_off; /* Load Offset */
unsigned long env_addr; /* Address of Environment struct */
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