Add Infineon v05 TPM driver

drivers/tpm/slb9635_i2c.c

+/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <i2c.h>
+#include "slb9635_i2c/ifx_auto.h"
+
+/* api function pointer for different version chip */
+static struct {
+        int (*open)(void);
+        int (*close)(void);
+        int (*sendrecv)(const uint8_t *sendbuf, size_t sbuf_size,
+                uint8_t *recvbuf, size_t *rbuf_len);
+} _tpm_instance = {0};
+
+
+int tis_init(void)
+{
+#ifdef CONFIG_TPM_SLB9635_I2C_V03
+        /* prototype version chip detection */
+        if (tpm_init_v03() == 0) {
+                printf("I2C addr(x1A) : v03 prototype\n");
+                _tpm_instance.open     = tpm_open_v03;
+                _tpm_instance.close    = tpm_close_v03;
+                _tpm_instance.sendrecv = tpm_sendrecv_v03;
+                return 0;
+        }
+#endif
+
+#ifdef CONFIG_TPM_SLB9635_I2C
+        /* firmware virsion > v05 : production */
+        if (tpm_init_v05() == 0) {
+                printf("I2C addr(x20) : v05 engineering/production\n");
+                _tpm_instance.open     = tpm_open_v05;
+                _tpm_instance.close    = tpm_close_v05;
+                _tpm_instance.sendrecv = tpm_sendrecv_v05;
+                return 0;
+        }
+#endif
+        _tpm_instance.open     = NULL;
+        _tpm_instance.close    = NULL;
+        _tpm_instance.sendrecv = NULL;
+        return -1;
+}
+
+int tis_open(void)
+{
+        if (_tpm_instance.open)
+                return (*_tpm_instance.open)();
+        return -1;
+}
+
+int tis_close(void)
+{
+        if (_tpm_instance.close)
+                return (*_tpm_instance.close)();
+        return -1;
+}
+
+int tis_sendrecv(const uint8_t *sendbuf, size_t sbuf_size,
+        uint8_t *recvbuf, size_t *rbuf_len)
+{
+        if (_tpm_instance.sendrecv)
+                return (*_tpm_instance.sendrecv)(sendbuf, sbuf_size, recvbuf,
+                        rbuf_len);
+        return -1;
+}
+