2 files changed, 76 insertions, 1 deletions

diff --git a/include/linux/amba/pl022.h b/include/linux/amba/pl022.h
index e4836c6b3dd7..abf26cc47a2b 100644
--- a/include/linux/amba/pl022.h
+++ b/include/linux/amba/pl022.h
@@ -71,6 +71,7 @@ struct ssp_clock_params {
 
 /**
  * enum ssp_rx_endian - endianess of Rx FIFO Data
+ * this feature is only available in ST versionf of PL022
  */
 enum ssp_rx_endian {
         SSP_RX_MSB,
@@ -181,7 +182,8 @@ enum ssp_microwire_wait_state {
 };
 
 /**
- * enum Microwire - whether Full/Half Duplex
+ * enum ssp_duplex - whether Full/Half Duplex on microwire, only
+ * available in the ST Micro variant.
  * @SSP_MICROWIRE_CHANNEL_FULL_DUPLEX: SSPTXD becomes bi-directional,
  *     SSPRXD not used
  * @SSP_MICROWIRE_CHANNEL_HALF_DUPLEX: SSPTXD is an output, SSPRXD is
@@ -193,6 +195,31 @@ enum ssp_duplex {
 };
 
 /**
+ * enum ssp_clkdelay - an optional clock delay on the feedback clock
+ * only available in the ST Micro PL023 variant.
+ * @SSP_FEEDBACK_CLK_DELAY_NONE: no delay, the data coming in from the
+ * slave is sampled directly
+ * @SSP_FEEDBACK_CLK_DELAY_1T: the incoming slave data is sampled with
+ * a delay of T-dt
+ * @SSP_FEEDBACK_CLK_DELAY_2T: dito with a delay if 2T-dt
+ * @SSP_FEEDBACK_CLK_DELAY_3T: dito with a delay if 3T-dt
+ * @SSP_FEEDBACK_CLK_DELAY_4T: dito with a delay if 4T-dt
+ * @SSP_FEEDBACK_CLK_DELAY_5T: dito with a delay if 5T-dt
+ * @SSP_FEEDBACK_CLK_DELAY_6T: dito with a delay if 6T-dt
+ * @SSP_FEEDBACK_CLK_DELAY_7T: dito with a delay if 7T-dt
+ */
+enum ssp_clkdelay {
+        SSP_FEEDBACK_CLK_DELAY_NONE,
+        SSP_FEEDBACK_CLK_DELAY_1T,
+        SSP_FEEDBACK_CLK_DELAY_2T,
+        SSP_FEEDBACK_CLK_DELAY_3T,
+        SSP_FEEDBACK_CLK_DELAY_4T,
+        SSP_FEEDBACK_CLK_DELAY_5T,
+        SSP_FEEDBACK_CLK_DELAY_6T,
+        SSP_FEEDBACK_CLK_DELAY_7T
+};
+
+/**
  * CHIP select/deselect commands
  */
 enum ssp_chip_select {
@@ -235,6 +262,8 @@ struct pl022_ssp_controller {
  * @ctrl_len: Microwire interface: Control length
  * @wait_state: Microwire interface: Wait state
  * @duplex: Microwire interface: Full/Half duplex
+ * @clkdelay: on the PL023 variant, the delay in feeback clock cycles
+ * before sampling the incoming line
  * @cs_control: function pointer to board-specific function to
  * assert/deassert I/O port to control HW generation of devices chip-select.
  * @dma_xfer_type: Type of DMA xfer (Mem-to-periph or Periph-to-Periph)
@@ -258,6 +287,7 @@ struct pl022_config_chip {
         enum ssp_microwire_ctrl_len ctrl_len;
         enum ssp_microwire_wait_state wait_state;
         enum ssp_duplex duplex;
+        enum ssp_clkdelay clkdelay;
         void (*cs_control) (u32 control);
 };
 
diff --git a/include/linux/amba/pl330.h b/include/linux/amba/pl330.h
new file mode 100644
index 000000000000..cbee7de7dd36
--- /dev/null
+++ b/include/linux/amba/pl330.h
@@ -0,0 +1,45 @@
+/* linux/include/linux/amba/pl330.h
+ *
+ * Copyright (C) 2010 Samsung Electronics Co. Ltd.
+ *      Jaswinder Singh <jassi.brar@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __AMBA_PL330_H_
+#define __AMBA_PL330_H_
+
+#include <asm/hardware/pl330.h>
+
+struct dma_pl330_peri {
+        /*
+         * Peri_Req i/f of the DMAC that is
+         * peripheral could be reached from.
+         */
+        u8 peri_id; /* {0, 31} */
+        enum pl330_reqtype rqtype;
+
+        /* For M->D and D->M Channels */
+        int burst_sz; /* in power of 2 */
+        dma_addr_t fifo_addr;
+};
+
+struct dma_pl330_platdata {
+        /*
+         * Number of valid peripherals connected to DMAC.
+         * This may be different from the value read from
+         * CR0, as the PL330 implementation might have 'holes'
+         * in the peri list or the peri could also be reached
+         * from another DMAC which the platform prefers.
+         */
+        u8 nr_valid_peri;
+        /* Array of valid peripherals */
+        struct dma_pl330_peri *peri;
+        /* Bytes to allocate for MC buffer */
+        unsigned mcbuf_sz;
+};
+
+#endif  /* __AMBA_PL330_H_ */