lenovo: Read mainboard version from AT24RF08C.
Tablets have different mainboard version than laptop variants. Change-Id: I77a1e2b50d30dcf3fa064e0c378ceca7ccf96e89 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: http://review.coreboot.org/6785 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Tested-by: build bot (Jenkins)
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@ -26,35 +26,62 @@
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#include <console/console.h>
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#include <console/console.h>
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#include "lenovo.h"
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#include "lenovo.h"
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static void at24rf08c_read_string(u8 bank, u8 start, u8 len, char *result)
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#define ERROR_STRING "*INVALID*"
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{
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int i;
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device_t dev;
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static device_t at24rf08c_find_bank(u8 bank)
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{
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device_t dev;
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dev = dev_find_slot_on_smbus(1, 0x54 | bank);
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dev = dev_find_slot_on_smbus(1, 0x54 | bank);
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if (dev == 0) {
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if (!dev)
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printk(BIOS_WARNING, "EEPROM not found\n");
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printk(BIOS_WARNING, "EEPROM not found\n");
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memcpy(result, "*INVALID*", sizeof ("*INVALID*"));
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return dev;
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return;
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}
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}
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for (i = 0; i < len; i++) {
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static int at24rf08c_read_byte(device_t dev, u8 addr)
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int t;
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{
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int t = -1;
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int j;
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int j;
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/* After a register write AT24RF08C (which we issued in init function) sometimes stops responding.
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Retry several times in case of failure.
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/* After a register write AT24RF08C (which we issued in init function)
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sometimes stops responding. Retry several times in case of failure.
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*/
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*/
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for (j = 0; j < 100; j++) {
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for (j = 0; j < 100; j++) {
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t = smbus_read_byte(dev, start + i);
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t = smbus_read_byte(dev, addr);
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if (t >= 0)
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if (t >= 0)
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break;
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return t;
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}
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}
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return t;
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}
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static void at24rf08c_read_string_dev(device_t dev, u8 start,
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u8 len, char *result)
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{
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int i;
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for (i = 0; i < len; i++) {
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int t = at24rf08c_read_byte(dev, start + i);
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if (t < 0x20 || t > 0x7f) {
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if (t < 0x20 || t > 0x7f) {
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memcpy(result, "*INVALID*", sizeof ("*INVALID*"));
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memcpy(result, ERROR_STRING, sizeof (ERROR_STRING));
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return;
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return;
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}
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}
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result[i] = t;
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result[i] = t;
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}
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}
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result[len] = '\0';
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}
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static void at24rf08c_read_string(u8 bank, u8 start, u8 len, char *result)
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{
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device_t dev;
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dev = at24rf08c_find_bank(bank);
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if (dev == 0) {
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printk(BIOS_WARNING, "EEPROM not found\n");
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memcpy(result, ERROR_STRING, sizeof (ERROR_STRING));
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return;
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}
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at24rf08c_read_string_dev(dev, start, len, result);
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}
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}
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const char *smbios_mainboard_serial_number(void)
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const char *smbios_mainboard_serial_number(void)
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@ -141,3 +168,33 @@ void smbios_mainboard_set_uuid(u8 *uuid)
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memcpy (uuid, result, 16);
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memcpy (uuid, result, 16);
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}
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}
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const char *smbios_mainboard_version(void)
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{
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static char result[100];
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static int already_read;
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device_t dev;
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int len;
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if (already_read)
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return result;
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memset (result, 0, sizeof (result));
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dev = at24rf08c_find_bank(2);
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if (dev == 0) {
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memcpy(result, ERROR_STRING, sizeof (ERROR_STRING));
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return result;
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}
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len = at24rf08c_read_byte(dev, 0x26) - 2;
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if (len < 0 || len > sizeof(result) - 1) {
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memcpy(result, ERROR_STRING, sizeof (ERROR_STRING));
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return result;
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}
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at24rf08c_read_string_dev(dev, 0x27, len, result);
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already_read = 1;
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return result;
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}
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@ -133,11 +133,6 @@ static int int15_handler(void)
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}
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}
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#endif
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#endif
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const char *smbios_mainboard_version(void)
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{
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return "ThinkPad T520";
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}
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/* Audio Setup */
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/* Audio Setup */
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static void verb_setup(void)
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static void verb_setup(void)
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@ -133,11 +133,6 @@ static int int15_handler(void)
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}
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}
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#endif
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#endif
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const char *smbios_mainboard_version(void)
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{
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return "ThinkPad T530";
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}
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/* Audio Setup */
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/* Audio Setup */
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static void verb_setup(void)
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static void verb_setup(void)
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@ -125,11 +125,6 @@ const char *smbios_mainboard_bios_version(void)
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return "CBET4000 " COREBOOT_VERSION;
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return "CBET4000 " COREBOOT_VERSION;
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}
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}
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const char *smbios_mainboard_version(void)
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{
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return "Lenovo X200";
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}
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static int mainboard_smbios_data(device_t dev, int *handle, unsigned long *current)
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static int mainboard_smbios_data(device_t dev, int *handle, unsigned long *current)
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{
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{
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int len;
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int len;
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@ -98,11 +98,6 @@ const char *smbios_mainboard_bios_version(void)
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return "CBET4000 " COREBOOT_VERSION;
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return "CBET4000 " COREBOOT_VERSION;
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}
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}
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const char *smbios_mainboard_version(void)
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{
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return "Lenovo X201";
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}
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/* Audio Setup */
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/* Audio Setup */
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static void verb_setup(void)
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static void verb_setup(void)
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@ -143,11 +143,6 @@ const char *smbios_mainboard_bios_version(void)
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return "CBET4000 " COREBOOT_VERSION;
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return "CBET4000 " COREBOOT_VERSION;
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}
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}
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const char *smbios_mainboard_version(void)
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{
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return "ThinkPad X220";
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}
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/* Audio Setup */
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/* Audio Setup */
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static void verb_setup(void)
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static void verb_setup(void)
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@ -143,11 +143,6 @@ const char *smbios_mainboard_bios_version(void)
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return "CBET4000 " COREBOOT_VERSION;
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return "CBET4000 " COREBOOT_VERSION;
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}
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}
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const char *smbios_mainboard_version(void)
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{
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return "ThinkPad X230";
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}
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/* Audio Setup */
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/* Audio Setup */
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static void verb_setup(void)
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static void verb_setup(void)
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