Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / freescale / common / vsc3316_3308.c

diff --git a/qemu/roms/u-boot/board/freescale/common/vsc3316_3308.c b/qemu/roms/u-boot/board/freescale/common/vsc3316_3308.c
new file mode 100644 (file)
index 0000000..97a25e8
--- /dev/null
+++ b/qemu/roms/u-boot/board/freescale/common/vsc3316_3308.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include "vsc3316_3308.h"
+
+#define REVISION_ID_REG                0x7E
+#define INTERFACE_MODE_REG             0x79
+#define CURRENT_PAGE_REGISTER          0x7F
+#define CONNECTION_CONFIG_PAGE         0x00
+#define INPUT_STATE_REG                0x13
+#define GLOBAL_INPUT_ISE1              0x51
+#define GLOBAL_INPUT_ISE2              0x52
+#define GLOBAL_INPUT_LOS               0x55
+#define GLOBAL_CORE_CNTRL              0x5D
+#define OUTPUT_MODE_PAGE               0x23
+#define CORE_CONTROL_PAGE              0x25
+#define CORE_CONFIG_REG                0x75
+
+int vsc_if_enable(unsigned int vsc_addr)
+{
+       u8 data;
+
+       debug("VSC:Configuring VSC at I2C address 0x%2x"
+                       " for 2-wire interface\n", vsc_addr);
+
+       /* enable 2-wire Serial InterFace (I2C) */
+       data = 0x02;
+       return i2c_write(vsc_addr, INTERFACE_MODE_REG, 1, &data, 1);
+}
+
+int vsc3316_config(unsigned int vsc_addr, int8_t con_arr[][2],
+               unsigned int num_con)
+{
+       unsigned int i;
+       u8 rev_id = 0;
+       int ret;
+
+       debug("VSC:Initializing VSC3316 at I2C address 0x%2x"
+               " for Tx\n", vsc_addr);
+
+       ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
+       if (ret < 0) {
+               printf("VSC:0x%x could not read REV_ID from device.\n",
+                       vsc_addr);
+               return ret;
+       }
+
+       if (rev_id != 0xab) {
+               printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
+                       vsc_addr);
+               return -ENODEV;
+       }
+
+       ret = vsc_if_enable(vsc_addr);
+       if (ret) {
+               printf("VSC:0x%x could not configured for 2-wire I/F.\n",
+                       vsc_addr);
+               return ret;
+       }
+
+       /* config connections - page 0x00 */
+       i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);
+
+       /* Making crosspoint connections, by connecting required
+        * input to output */
+       for (i = 0; i < num_con ; i++)
+               i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);
+
+       /* input state - page 0x13 */
+       i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
+       /* Configuring the required input of the switch */
+       for (i = 0; i < num_con ; i++)
+               i2c_reg_write(vsc_addr, con_arr[i][0], 0x80);
+
+       /* Setting Global Input LOS threshold value */
+       i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);
+
+       /* config output mode - page 0x23 */
+       i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
+       /* Turn ON the Output driver correspond to required output*/
+       for (i = 0; i < num_con ; i++)
+               i2c_reg_write(vsc_addr,  con_arr[i][1], 0);
+
+       /* configure global core control register, Turn on Global core power */
+       i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);
+
+       vsc_wp_config(vsc_addr);
+
+       return 0;
+}
+
+int vsc3308_config(unsigned int vsc_addr, const int8_t con_arr[][2],
+               unsigned int num_con)
+{
+       unsigned int i;
+       u8 rev_id = 0;
+       int ret;
+
+       debug("VSC:Initializing VSC3308 at I2C address 0x%x"
+               " for Tx\n", vsc_addr);
+
+       ret = i2c_read(vsc_addr, REVISION_ID_REG, 1, &rev_id, 1);
+       if (ret < 0) {
+               printf("VSC:0x%x could not read REV_ID from device.\n",
+                       vsc_addr);
+               return ret;
+       }
+
+       if (rev_id != 0xab) {
+               printf("VSC: device at address 0x%x is not VSC3316/3308.\n",
+                       vsc_addr);
+               return -ENODEV;
+       }
+
+       ret = vsc_if_enable(vsc_addr);
+       if (ret) {
+               printf("VSC:0x%x could not configured for 2-wire I/F.\n",
+                       vsc_addr);
+               return ret;
+       }
+
+       /* config connections - page 0x00 */
+       i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, CONNECTION_CONFIG_PAGE);
+
+       /* Making crosspoint connections, by connecting required
+        * input to output */
+       for (i = 0; i < num_con ; i++)
+               i2c_reg_write(vsc_addr, con_arr[i][1], con_arr[i][0]);
+
+       /*Configure Global Input ISE and gain */
+       i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE1, 0x12);
+       i2c_reg_write(vsc_addr, GLOBAL_INPUT_ISE2, 0x12);
+
+       /* input state - page 0x13 */
+       i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, INPUT_STATE_REG);
+       /* Turning ON the required input of the switch */
+       for (i = 0; i < num_con ; i++)
+               i2c_reg_write(vsc_addr, con_arr[i][0], 0);
+
+       /* Setting Global Input LOS threshold value */
+       i2c_reg_write(vsc_addr, GLOBAL_INPUT_LOS, 0x60);
+
+       /* config output mode - page 0x23 */
+       i2c_reg_write(vsc_addr, CURRENT_PAGE_REGISTER, OUTPUT_MODE_PAGE);
+       /* Turn ON the Output driver correspond to required output*/
+       for (i = 0; i < num_con ; i++)
+               i2c_reg_write(vsc_addr,  con_arr[i][1], 0);
+
+       /* configure global core control register, Turn on Global core power */
+       i2c_reg_write(vsc_addr, GLOBAL_CORE_CNTRL, 0);
+
+       vsc_wp_config(vsc_addr);
+
+       return 0;
+}
+
+void vsc_wp_config(unsigned int vsc_addr)
+{
+       debug("VSC:Configuring VSC at address:0x%x for WP\n", vsc_addr);
+
+       /* For new crosspoint configuration to occur, WP bit of
+        * CORE_CONFIG_REG should be set 1 and then reset to 0 */
+       i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x01);
+       i2c_reg_write(vsc_addr, CORE_CONFIG_REG, 0x0);
+}