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>

payloads/libpayload/arch/i386/coreboot.c

@@ -77,7 +77,9 @@ static void cb_parse_memory(unsigned char *ptr, struct sysinfo_t *info)
 static void cb_parse_serial(unsigned char *ptr, struct sysinfo_t *info)
 {
 	struct cb_serial *ser = (struct cb_serial *)ptr;
-	info->ser_ioport = ser->ioport;
+	if (ser->type != CB_SERIAL_TYPE_IO_MAPPED)
+		return;
+	info->ser_ioport = ser->baseaddr;
 }
 
 #ifdef CONFIG_NVRAM

payloads/libpayload/arch/powerpc/coreboot.c

@@ -77,7 +77,9 @@ static void cb_parse_memory(unsigned char *ptr, struct sysinfo_t *info)
 static void cb_parse_serial(unsigned char *ptr, struct sysinfo_t *info)
 {
 	struct cb_serial *ser = (struct cb_serial *)ptr;
-	info->ser_ioport = ser->ioport;
+	if (ser->type != CB_SERIAL_TYPE_IO_MAPPED)
+		return;
+	info->ser_ioport = ser->baseaddr;
 }
 
 #ifdef CONFIG_NVRAM

payloads/libpayload/include/coreboot_tables.h

@@ -60,9 +60,13 @@ struct cb_memory_range {
 	u32 type;
 };
 
-#define CB_MEM_RAM      1
+#define CB_MEM_RAM          1
-#define CB_MEM_RESERVED 2
+#define CB_MEM_RESERVED     2
-#define CB_MEM_TABLE    16
+#define CB_MEM_ACPI         3
+#define CB_MEM_NVS          4
+#define CB_MEM_UNUSABLE     5
+#define CB_MEM_VENDOR_RSVD  6
+#define CB_MEM_TABLE       16
 
 struct cb_memory {
 	u32 tag;
@@ -110,7 +114,11 @@ struct cb_string {
 struct cb_serial {
 	u32 tag;
 	u32 size;
-	u16 ioport;
+#define CB_SERIAL_TYPE_IO_MAPPED     1
+#define CB_SERIAL_TYPE_MEMORY_MAPPED 2
+	u32 type;
+	u32 baseaddr;
+	u32 baud;
 };
 
 #define CB_TAG_CONSOLE       0x00010

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)

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)

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;
 };
 

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);