Texas Instruments OMAP36 Series, Technical Reference Manual

Page: 1246 / 3738

Public Version
Camera ISP Basic Programming Model
www.ti.com
• CONTROL_PADCONF_CSI2_DX1[24] INPUTENABLE1 = 0x1
• CONTROL_PADCONF_CSI2_DX1[20] PULLTYPESELECT1 = 0x0
• CONTROL_PADCONF_CSI2_DX1[19] PULLUDENABLE1 = 0x1
(e) Power up the CSIPHY:
(i) Set CSI2_COMPLEXIO_CFG1 [28:27] PWR_CMD to 0x1.
(f) Check that the state status reaches the ON state:
• CSI2_COMPLEXIO_CFG1 [26:25] PWR_STATUS = 0x1
(g) Wait for STOPSTATE = 1 (for all enabled lane modules):
(i) The timer is set through the CSI2_TIMING [14:0] bit field. The reset value can be kept.
(ii) Wait until CSI2_TIMING [15] FORCE_RX_MODE_IO1 = 0x0. It is automatically put at 0 when
all enabled lanes are in STOPSTATE and the timer is finished.
(h) Release PIPD* (= 1):
• For CSIPHY1: Pull up on signals through padconf registers:
– cam_d6:
• CONTROL_PADCONF_CAM_D5[20] PULLTYPESELECT1 = 0x1
– cam_d7:
• CONTROL_PADCONF_CAM_D7[4] PULLTYPESELECT0 = 0x1
– cam_d8:
• CONTROL_PADCONF_CAM_D7[20] PULLTYPESELECT1 = 0x1
– cam_d9:
• CONTROL_PADCONF_CAM_D9[4] PULLTYPESELECT0 = 0x1
• For CSIPHY2: Pull up on signals through padconf registers:
– cam_d0:
• CONTROL_PADCONF_CAM_FLD[20] PULLTYPESELECT1 = 0x1
– cam_d1:
• CONTROL_PADCONF_CAM_D1[4] PULLTYPESELECT0 = 0x1
– csi2_dx0:
• CONTROL_PADCONF_CSI2_DX0[4] PULLTYPESELECT0 = 0x1
– csi2_dy0:
• CONTROL_PADCONF_CSI2_DX0[20] PULLTYPESELECT1 = 0x1
– csi2_dx1:
• CONTROL_PADCONF_CSI2_DX1[4] PULLTYPESELECT0 = 0x1
– csi2_dy1:
• CONTROL_PADCONF_CSI2_DX1[20] PULLTYPESELECT1 = 0x1
(i) The CSIPHY is initialized and ready/active in CSI2 mode.
6.5.2.2 Camera ISP CSIPHY Initialization for Work With CSI1/CCP2B Receiver
To fully initialize the CSIPHY, perform the following steps:
1. Configure all CSI1/CCP2B receiver registers to receive signals/data from the CSIPHY:
(a) Configure all CSI1/CCP2B registers:
(i) Set CSI2_COMPLEXIO_CFG1 [10:8] DATA2_POSITION.
CCP2 mode for work with CSIPHY1:
0x0: Not used/connected
CCP2 mode for work with CSIPHY2:
0x0: Not used/connected
(ii) Set CSI2_COMPLEXIO_CFG1 [6:4] DATA1_POSITION.
CCP2 mode for work with CSIPHY1:
0x1: Data lane 1 is at position 2.
0x2: Data lane 1 is at position 1.
CCP2 mode for work with CSIPHY2:
1246 Camera Image Signal Processor SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated