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authorStefan Reinauer <reinauer@chromium.org>2011-06-22 16:39:19 -0700
committerStefan Reinauer <stefan.reinauer@coreboot.org>2011-10-21 23:34:30 +0200
commitd1bc331855caab351a70676b5085787292a45fea (patch)
tree8d0ddcf777c4b7330e02495982f1f718f56d27fc /src
parentb6010b8e70c25f93773bc464457f69fd4bb8a82e (diff)
downloadcoreboot-d1bc331855caab351a70676b5085787292a45fea.tar.xz
Extend coreboot table entry for serial ports
Add information about memory mapped/io mapped base addresses. and fix up libpayload to use the same structures Signed-off-by: Stefan Reinauer <reinauer@google.com> Change-Id: I5f7b5eda6063261b9acb7a46310172d4a5471dfb Reviewed-on: http://review.coreboot.org/261 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/arch/x86/boot/coreboot_table.c15
-rw-r--r--src/console/uart8250mem_console.c5
-rw-r--r--src/include/boot/coreboot_tables.h5
-rw-r--r--src/include/uart8250.h1
4 files changed, 23 insertions, 3 deletions
diff --git a/src/arch/x86/boot/coreboot_table.c b/src/arch/x86/boot/coreboot_table.c
index cdfc0c1d8d..78ff97d21b 100644
--- a/src/arch/x86/boot/coreboot_table.c
+++ b/src/arch/x86/boot/coreboot_table.c
@@ -112,7 +112,19 @@ static struct lb_serial *lb_serial(struct lb_header *header)
serial = (struct lb_serial *)rec;
serial->tag = LB_TAG_SERIAL;
serial->size = sizeof(*serial);
- serial->ioport = CONFIG_TTYS0_BASE;
+ serial->type = LB_SERIAL_TYPE_IO_MAPPED;
+ serial->baseaddr = CONFIG_TTYS0_BASE;
+ serial->baud = CONFIG_TTYS0_BAUD;
+ return serial;
+#elif CONFIG_CONSOLE_SERIAL8250MEM
+ struct lb_record *rec;
+ struct lb_serial *serial;
+ rec = lb_new_record(header);
+ serial = (struct lb_serial *)rec;
+ serial->tag = LB_TAG_SERIAL;
+ serial->size = sizeof(*serial);
+ serial->type = LB_SERIAL_TYPE_MEMORY_MAPPED;
+ serial->baseaddr = uartmem_getbaseaddr();
serial->baud = CONFIG_TTYS0_BAUD;
return serial;
#else
@@ -131,7 +143,6 @@ static void add_console(struct lb_header *header, u16 consoletype)
console->size = sizeof(*console);
console->type = consoletype;
}
-
#endif
static void lb_console(struct lb_header *header)
diff --git a/src/console/uart8250mem_console.c b/src/console/uart8250mem_console.c
index e622ad090c..923df99df1 100644
--- a/src/console/uart8250mem_console.c
+++ b/src/console/uart8250mem_console.c
@@ -28,6 +28,11 @@ static void uartmem_init(void)
uart_bar = uart_mem_init();
}
+u32 uartmem_getbaseaddr(void)
+{
+ return uart_bar;
+}
+
static void uartmem_tx_byte(unsigned char data)
{
if (!uart_bar)
diff --git a/src/include/boot/coreboot_tables.h b/src/include/boot/coreboot_tables.h
index 983b03f602..45ba3af110 100644
--- a/src/include/boot/coreboot_tables.h
+++ b/src/include/boot/coreboot_tables.h
@@ -146,7 +146,10 @@ struct lb_string {
struct lb_serial {
uint32_t tag;
uint32_t size;
- uint16_t ioport;
+#define LB_SERIAL_TYPE_IO_MAPPED 1
+#define LB_SERIAL_TYPE_MEMORY_MAPPED 2
+ uint32_t type;
+ uint32_t baseaddr;
uint32_t baud;
};
diff --git a/src/include/uart8250.h b/src/include/uart8250.h
index 4a02179210..3c8ea09291 100644
--- a/src/include/uart8250.h
+++ b/src/include/uart8250.h
@@ -146,6 +146,7 @@ void uart8250_mem_tx_byte(unsigned base_port, unsigned char data);
void uart8250_mem_tx_flush(unsigned base_port);
void uart8250_mem_init(unsigned base_port, unsigned divisor);
u32 uart_mem_init(void);
+u32 uartmem_getbaseaddr(void);
/* and special init for OXPCIe based cards */
void oxford_init(void);