recipes-kernel: update driver recipes

This patch changes the recipes to fetch the driver sources from
AGL's src directory. It therefore removes the redundant source
files from the recipe directory.

Change-Id: Ib3c48a0c7e79144713ccd8e10a89185cd929b41c
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>

10 files changed, 0 insertions, 2719 deletions

diff --git a/recipes-kernel/hdm-dim2/files/COPYING b/recipes-kernel/hdm-dim2/files/COPYING
deleted file mode 100644
index 6d45519c8..000000000
--- a/recipes-kernel/hdm-dim2/files/COPYING
+++ /dev/null
@@ -1,340 +0,0 @@
-		    GNU GENERAL PUBLIC LICENSE
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diff --git a/recipes-kernel/hdm-dim2/files/Makefile b/recipes-kernel/hdm-dim2/files/Makefile
deleted file mode 100644
index a9dc62ab0..000000000
--- a/recipes-kernel/hdm-dim2/files/Makefile
+++ /dev/null
@@ -1,18 +0,0 @@
-# Makefile
-#
-
-SRC := $(shell pwd)
-
-obj-m += hdm_dim2.o
-hdm_dim2-y := dim2_hdm.o dim2_hal.o dim2_sysfs.o
-CFLAGS_dim2_hdm.o := -I$(src)/../../mostcore/files -I$(src)/../../aim-network/files
-
-all:
-	$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules
-
-modules_install:
-	$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
-
-clean:
-	$(MAKE) -C $(KERNEL_SRC) M=$(SRC) clean
-
diff --git a/recipes-kernel/hdm-dim2/files/dim2_errors.h b/recipes-kernel/hdm-dim2/files/dim2_errors.h
deleted file mode 100644
index 5a713df1d..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_errors.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * dim2_errors.h - Definitions of errors for DIM2 HAL API
- * (MediaLB, Device Interface Macro IP, OS62420)
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-#ifndef _MOST_DIM_ERRORS_H
-#define _MOST_DIM_ERRORS_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * MOST DIM errors.
- */
-enum dim_errors_t {
-	/** Not an error */
-	DIM_NO_ERROR = 0,
-
-	/** Bad base address for DIM2 IP */
-	DIM_INIT_ERR_DIM_ADDR = 0x10,
-
-	/**< Bad MediaLB clock */
-	DIM_INIT_ERR_MLB_CLOCK,
-
-	/** Bad channel address */
-	DIM_INIT_ERR_CHANNEL_ADDRESS,
-
-	/** Out of DBR memory */
-	DIM_INIT_ERR_OUT_OF_MEMORY,
-
-	/** DIM API is called while DIM is not initialized successfully */
-	DIM_ERR_DRIVER_NOT_INITIALIZED = 0x20,
-
-	/**
-	 * Configuration does not respect hardware limitations
-	 * for isochronous or synchronous channels
-	 */
-	DIM_ERR_BAD_CONFIG,
-
-	/**
-	 * Buffer size does not respect hardware limitations
-	 * for isochronous or synchronous channels
-	 */
-	DIM_ERR_BAD_BUFFER_SIZE,
-
-	DIM_ERR_UNDERFLOW,
-
-	DIM_ERR_OVERFLOW,
-};
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _MOST_DIM_ERRORS_H */
diff --git a/recipes-kernel/hdm-dim2/files/dim2_hal.c b/recipes-kernel/hdm-dim2/files/dim2_hal.c
deleted file mode 100644
index 172257596..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_hal.c
+++ /dev/null
@@ -1,894 +0,0 @@
-/*
- * dim2_hal.c - DIM2 HAL implementation
- * (MediaLB, Device Interface Macro IP, OS62420)
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */
-
-#include "dim2_hal.h"
-#include "dim2_errors.h"
-#include "dim2_reg.h"
-#include <linux/stddef.h>
-
-/*
- * The number of frames per sub-buffer for synchronous channels.
- * Allowed values: 1, 2, 4, 8, 16, 32, 64.
- */
-#define FRAMES_PER_SUBBUFF 16
-
-/*
- * Size factor for synchronous DBR buffer.
- * Minimal value is 4*FRAMES_PER_SUBBUFF.
- */
-#define SYNC_DBR_FACTOR (4u * (u16)FRAMES_PER_SUBBUFF)
-
-/*
- * Size factor for isochronous DBR buffer.
- * Minimal value is 3.
- */
-#define ISOC_DBR_FACTOR 3u
-
-/*
- * Number of 32-bit units for DBR map.
- *
- * 1: block size is 512, max allocation is 16K
- * 2: block size is 256, max allocation is 8K
- * 4: block size is 128, max allocation is 4K
- * 8: block size is 64, max allocation is 2K
- *
- * Min allocated space is block size.
- * Max possible allocated space is 32 blocks.
- */
-#define DBR_MAP_SIZE 2
-
-/* -------------------------------------------------------------------------- */
-/* not configurable area */
-
-#define CDT 0x00
-#define ADT 0x40
-#define MLB_CAT 0x80
-#define AHB_CAT 0x88
-
-#define DBR_SIZE  (16 * 1024) /* specified by IP */
-#define DBR_BLOCK_SIZE  (DBR_SIZE / 32 / DBR_MAP_SIZE)
-
-/* -------------------------------------------------------------------------- */
-/* generic helper functions and macros */
-
-#define MLBC0_FCNT_VAL_MACRO(n) MLBC0_FCNT_VAL_ ## n ## FPSB
-#define MLBC0_FCNT_VAL(fpsb) MLBC0_FCNT_VAL_MACRO(fpsb)
-
-static inline u32 bit_mask(u8 position)
-{
-	return (u32)1 << position;
-}
-
-static inline bool dim_on_error(u8 error_id, const char *error_message)
-{
-	dimcb_on_error(error_id, error_message);
-	return false;
-}
-
-/* -------------------------------------------------------------------------- */
-/* types and local variables */
-
-struct lld_global_vars_t {
-	bool dim_is_initialized;
-	bool mcm_is_initialized;
-	struct dim2_regs *dim2; /* DIM2 core base address */
-	u32 dbr_map[DBR_MAP_SIZE];
-};
-
-static struct lld_global_vars_t g = { false };
-
-/* -------------------------------------------------------------------------- */
-
-static int dbr_get_mask_size(u16 size)
-{
-	int i;
-
-	for (i = 0; i < 6; i++)
-		if (size <= (DBR_BLOCK_SIZE << i))
-			return 1 << i;
-	return 0;
-}
-
-/**
- * Allocates DBR memory.
- * @param size Allocating memory size.
- * @return Offset in DBR memory by success or DBR_SIZE if out of memory.
- */
-static int alloc_dbr(u16 size)
-{
-	int mask_size;
-	int i, block_idx = 0;
-
-	if (size <= 0)
-		return DBR_SIZE; /* out of memory */
-
-	mask_size = dbr_get_mask_size(size);
-	if (mask_size == 0)
-		return DBR_SIZE; /* out of memory */
-
-	for (i = 0; i < DBR_MAP_SIZE; i++) {
-		u32 const blocks = (size + DBR_BLOCK_SIZE - 1) / DBR_BLOCK_SIZE;
-		u32 mask = ~((~(u32)0) << blocks);
-
-		do {
-			if ((g.dbr_map[i] & mask) == 0) {
-				g.dbr_map[i] |= mask;
-				return block_idx * DBR_BLOCK_SIZE;
-			}
-			block_idx += mask_size;
-			/* do shift left with 2 steps in case mask_size == 32 */
-			mask <<= mask_size - 1;
-		} while ((mask <<= 1) != 0);
-	}
-
-	return DBR_SIZE; /* out of memory */
-}
-
-static void free_dbr(int offs, int size)
-{
-	int block_idx = offs / DBR_BLOCK_SIZE;
-	u32 const blocks = (size + DBR_BLOCK_SIZE - 1) / DBR_BLOCK_SIZE;
-	u32 mask = ~((~(u32)0) << blocks);
-
-	mask <<= block_idx % 32;
-	g.dbr_map[block_idx / 32] &= ~mask;
-}
-
-/* -------------------------------------------------------------------------- */
-
-static u32 dim2_read_ctr(u32 ctr_addr, u16 mdat_idx)
-{
-	dimcb_io_write(&g.dim2->MADR, ctr_addr);
-
-	/* wait till transfer is completed */
-	while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1)
-		continue;
-
-	dimcb_io_write(&g.dim2->MCTL, 0);   /* clear transfer complete */
-
-	return dimcb_io_read((&g.dim2->MDAT0) + mdat_idx);
-}
-
-static void dim2_write_ctr_mask(u32 ctr_addr, const u32 *mask, const u32 *value)
-{
-	enum { MADR_WNR_BIT = 31 };
-
-	dimcb_io_write(&g.dim2->MCTL, 0);   /* clear transfer complete */
-
-	if (mask[0] != 0)
-		dimcb_io_write(&g.dim2->MDAT0, value[0]);
-	if (mask[1] != 0)
-		dimcb_io_write(&g.dim2->MDAT1, value[1]);
-	if (mask[2] != 0)
-		dimcb_io_write(&g.dim2->MDAT2, value[2]);
-	if (mask[3] != 0)
-		dimcb_io_write(&g.dim2->MDAT3, value[3]);
-
-	dimcb_io_write(&g.dim2->MDWE0, mask[0]);
-	dimcb_io_write(&g.dim2->MDWE1, mask[1]);
-	dimcb_io_write(&g.dim2->MDWE2, mask[2]);
-	dimcb_io_write(&g.dim2->MDWE3, mask[3]);
-
-	dimcb_io_write(&g.dim2->MADR, bit_mask(MADR_WNR_BIT) | ctr_addr);
-
-	/* wait till transfer is completed */
-	while ((dimcb_io_read(&g.dim2->MCTL) & 1) != 1)
-		continue;
-
-	dimcb_io_write(&g.dim2->MCTL, 0);   /* clear transfer complete */
-}
-
-static inline void dim2_write_ctr(u32 ctr_addr, const u32 *value)
-{
-	u32 const mask[4] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
-
-	dim2_write_ctr_mask(ctr_addr, mask, value);
-}
-
-static inline void dim2_clear_ctr(u32 ctr_addr)
-{
-	u32 const value[4] = { 0, 0, 0, 0 };
-
-	dim2_write_ctr(ctr_addr, value);
-}
-
-static void dim2_configure_cat(u8 cat_base, u8 ch_addr, u8 ch_type,
-			       bool read_not_write, bool sync_mfe)
-{
-	u16 const cat =
-		(read_not_write << CAT_RNW_BIT) |
-		(ch_type << CAT_CT_SHIFT) |
-		(ch_addr << CAT_CL_SHIFT) |
-		(sync_mfe << CAT_MFE_BIT) |
-		(false << CAT_MT_BIT) |
-		(true << CAT_CE_BIT);
-	u8 const ctr_addr = cat_base + ch_addr / 8;
-	u8 const idx = (ch_addr % 8) / 2;
-	u8 const shift = (ch_addr % 2) * 16;
-	u32 mask[4] = { 0, 0, 0, 0 };
-	u32 value[4] = { 0, 0, 0, 0 };
-
-	mask[idx] = (u32)0xFFFF << shift;
-	value[idx] = cat << shift;
-	dim2_write_ctr_mask(ctr_addr, mask, value);
-}
-
-static void dim2_clear_cat(u8 cat_base, u8 ch_addr)
-{
-	u8 const ctr_addr = cat_base + ch_addr / 8;
-	u8 const idx = (ch_addr % 8) / 2;
-	u8 const shift = (ch_addr % 2) * 16;
-	u32 mask[4] = { 0, 0, 0, 0 };
-	u32 value[4] = { 0, 0, 0, 0 };
-
-	mask[idx] = (u32)0xFFFF << shift;
-	dim2_write_ctr_mask(ctr_addr, mask, value);
-}
-
-static void dim2_configure_cdt(u8 ch_addr, u16 dbr_address, u16 hw_buffer_size,
-			       u16 packet_length)
-{
-	u32 cdt[4] = { 0, 0, 0, 0 };
-
-	if (packet_length)
-		cdt[1] = ((packet_length - 1) << CDT1_BS_ISOC_SHIFT);
-
-	cdt[3] =
-		((hw_buffer_size - 1) << CDT3_BD_SHIFT) |
-		(dbr_address << CDT3_BA_SHIFT);
-	dim2_write_ctr(CDT + ch_addr, cdt);
-}
-
-static void dim2_clear_cdt(u8 ch_addr)
-{
-	u32 cdt[4] = { 0, 0, 0, 0 };
-
-	dim2_write_ctr(CDT + ch_addr, cdt);
-}
-
-static void dim2_configure_adt(u8 ch_addr)
-{
-	u32 adt[4] = { 0, 0, 0, 0 };
-
-	adt[0] =
-		(true << ADT0_CE_BIT) |
-		(true << ADT0_LE_BIT) |
-		(0 << ADT0_PG_BIT);
-
-	dim2_write_ctr(ADT + ch_addr, adt);
-}
-
-static void dim2_clear_adt(u8 ch_addr)
-{
-	u32 adt[4] = { 0, 0, 0, 0 };
-
-	dim2_write_ctr(ADT + ch_addr, adt);
-}
-
-static void dim2_start_ctrl_async(u8 ch_addr, u8 idx, u32 buf_addr,
-				  u16 buffer_size)
-{
-	u8 const shift = idx * 16;
-
-	u32 mask[4] = { 0, 0, 0, 0 };
-	u32 adt[4] = { 0, 0, 0, 0 };
-
-	mask[1] =
-		bit_mask(ADT1_PS_BIT + shift) |
-		bit_mask(ADT1_RDY_BIT + shift) |
-		(ADT1_CTRL_ASYNC_BD_MASK << (ADT1_BD_SHIFT + shift));
-	adt[1] =
-		(true << (ADT1_PS_BIT + shift)) |
-		(true << (ADT1_RDY_BIT + shift)) |
-		((buffer_size - 1) << (ADT1_BD_SHIFT + shift));
-
-	mask[idx + 2] = 0xFFFFFFFF;
-	adt[idx + 2] = buf_addr;
-
-	dim2_write_ctr_mask(ADT + ch_addr, mask, adt);
-}
-
-static void dim2_start_isoc_sync(u8 ch_addr, u8 idx, u32 buf_addr,
-				 u16 buffer_size)
-{
-	u8 const shift = idx * 16;
-
-	u32 mask[4] = { 0, 0, 0, 0 };
-	u32 adt[4] = { 0, 0, 0, 0 };
-
-	mask[1] =
-		bit_mask(ADT1_RDY_BIT + shift) |
-		(ADT1_ISOC_SYNC_BD_MASK << (ADT1_BD_SHIFT + shift));
-	adt[1] =
-		(true << (ADT1_RDY_BIT + shift)) |
-		((buffer_size - 1) << (ADT1_BD_SHIFT + shift));
-
-	mask[idx + 2] = 0xFFFFFFFF;
-	adt[idx + 2] = buf_addr;
-
-	dim2_write_ctr_mask(ADT + ch_addr, mask, adt);
-}
-
-static void dim2_clear_ctram(void)
-{
-	u32 ctr_addr;
-
-	for (ctr_addr = 0; ctr_addr < 0x90; ctr_addr++)
-		dim2_clear_ctr(ctr_addr);
-}
-
-static void dim2_configure_channel(
-	u8 ch_addr, u8 type, u8 is_tx, u16 dbr_address, u16 hw_buffer_size,
-	u16 packet_length, bool sync_mfe)
-{
-	dim2_configure_cdt(ch_addr, dbr_address, hw_buffer_size, packet_length);
-	dim2_configure_cat(MLB_CAT, ch_addr, type, is_tx ? 1 : 0, sync_mfe);
-
-	dim2_configure_adt(ch_addr);
-	dim2_configure_cat(AHB_CAT, ch_addr, type, is_tx ? 0 : 1, sync_mfe);
-
-	/* unmask interrupt for used channel, enable mlb_sys_int[0] interrupt */
-	dimcb_io_write(&g.dim2->ACMR0,
-		       dimcb_io_read(&g.dim2->ACMR0) | bit_mask(ch_addr));
-}
-
-static void dim2_clear_channel(u8 ch_addr)
-{
-	/* mask interrupt for used channel, disable mlb_sys_int[0] interrupt */
-	dimcb_io_write(&g.dim2->ACMR0,
-		       dimcb_io_read(&g.dim2->ACMR0) & ~bit_mask(ch_addr));
-
-	dim2_clear_cat(AHB_CAT, ch_addr);
-	dim2_clear_adt(ch_addr);
-
-	dim2_clear_cat(MLB_CAT, ch_addr);
-	dim2_clear_cdt(ch_addr);
-}
-
-/* -------------------------------------------------------------------------- */
-/* channel state helpers */
-
-static void state_init(struct int_ch_state *state)
-{
-	state->request_counter = 0;
-	state->service_counter = 0;
-
-	state->idx1 = 0;
-	state->idx2 = 0;
-	state->level = 0;
-}
-
-/* -------------------------------------------------------------------------- */
-/* macro helper functions */
-
-static inline bool check_channel_address(u32 ch_address)
-{
-	return ch_address > 0 && (ch_address % 2) == 0 &&
-	       (ch_address / 2) <= (u32)CAT_CL_MASK;
-}
-
-static inline bool check_packet_length(u32 packet_length)
-{
-	u16 const max_size = ((u16)CDT3_BD_ISOC_MASK + 1u) / ISOC_DBR_FACTOR;
-
-	if (packet_length <= 0)
-		return false; /* too small */
-
-	if (packet_length > max_size)
-		return false; /* too big */
-
-	if (packet_length - 1u > (u32)CDT1_BS_ISOC_MASK)
-		return false; /* too big */
-
-	return true;
-}
-
-static inline bool check_bytes_per_frame(u32 bytes_per_frame)
-{
-	u16 const max_size = ((u16)CDT3_BD_MASK + 1u) / SYNC_DBR_FACTOR;
-
-	if (bytes_per_frame <= 0)
-		return false; /* too small */
-
-	if (bytes_per_frame > max_size)
-		return false; /* too big */
-
-	return true;
-}
-
-static inline u16 norm_ctrl_async_buffer_size(u16 buf_size)
-{
-	u16 const max_size = (u16)ADT1_CTRL_ASYNC_BD_MASK + 1u;
-
-	if (buf_size > max_size)
-		return max_size;
-
-	return buf_size;
-}
-
-static inline u16 norm_isoc_buffer_size(u16 buf_size, u16 packet_length)
-{
-	u16 n;
-	u16 const max_size = (u16)ADT1_ISOC_SYNC_BD_MASK + 1u;
-
-	if (buf_size > max_size)
-		buf_size = max_size;
-
-	n = buf_size / packet_length;
-
-	if (n < 2u)
-		return 0; /* too small buffer for given packet_length */
-
-	return packet_length * n;
-}
-
-static inline u16 norm_sync_buffer_size(u16 buf_size, u16 bytes_per_frame)
-{
-	u16 n;
-	u16 const max_size = (u16)ADT1_ISOC_SYNC_BD_MASK + 1u;
-	u32 const unit = bytes_per_frame * (u16)FRAMES_PER_SUBBUFF;
-
-	if (buf_size > max_size)
-		buf_size = max_size;
-
-	n = buf_size / unit;
-
-	if (n < 1u)
-		return 0; /* too small buffer for given bytes_per_frame */
-
-	return unit * n;
-}
-
-static void dim2_cleanup(void)
-{
-	/* disable MediaLB */
-	dimcb_io_write(&g.dim2->MLBC0, false << MLBC0_MLBEN_BIT);
-
-	dim2_clear_ctram();
-
-	/* disable mlb_int interrupt */
-	dimcb_io_write(&g.dim2->MIEN, 0);
-
-	/* clear status for all dma channels */
-	dimcb_io_write(&g.dim2->ACSR0, 0xFFFFFFFF);
-	dimcb_io_write(&g.dim2->ACSR1, 0xFFFFFFFF);
-
-	/* mask interrupts for all channels */
-	dimcb_io_write(&g.dim2->ACMR0, 0);
-	dimcb_io_write(&g.dim2->ACMR1, 0);
-}
-
-static void dim2_initialize(bool enable_6pin, u8 mlb_clock)
-{
-	dim2_cleanup();
-
-	/* configure and enable MediaLB */
-	dimcb_io_write(&g.dim2->MLBC0,
-		       enable_6pin << MLBC0_MLBPEN_BIT |
-		       mlb_clock << MLBC0_MLBCLK_SHIFT |
-		       MLBC0_FCNT_VAL(FRAMES_PER_SUBBUFF) << MLBC0_FCNT_SHIFT |
-		       true << MLBC0_MLBEN_BIT);
-
-	/* activate all HBI channels */
-	dimcb_io_write(&g.dim2->HCMR0, 0xFFFFFFFF);
-	dimcb_io_write(&g.dim2->HCMR1, 0xFFFFFFFF);
-
-	/* enable HBI */
-	dimcb_io_write(&g.dim2->HCTL, bit_mask(HCTL_EN_BIT));
-
-	/* configure DMA */
-	dimcb_io_write(&g.dim2->ACTL,
-		       ACTL_DMA_MODE_VAL_DMA_MODE_1 << ACTL_DMA_MODE_BIT |
-		       true << ACTL_SCE_BIT);
-}
-
-static bool dim2_is_mlb_locked(void)
-{
-	u32 const mask0 = bit_mask(MLBC0_MLBLK_BIT);
-	u32 const mask1 = bit_mask(MLBC1_CLKMERR_BIT) |
-			  bit_mask(MLBC1_LOCKERR_BIT);
-	u32 const c1 = dimcb_io_read(&g.dim2->MLBC1);
-	u32 const nda_mask = (u32)MLBC1_NDA_MASK << MLBC1_NDA_SHIFT;
-
-	dimcb_io_write(&g.dim2->MLBC1, c1 & nda_mask);
-	return (dimcb_io_read(&g.dim2->MLBC1) & mask1) == 0 &&
-	       (dimcb_io_read(&g.dim2->MLBC0) & mask0) != 0;
-}
-
-/* -------------------------------------------------------------------------- */
-/* channel help routines */
-
-static inline bool service_channel(u8 ch_addr, u8 idx)
-{
-	u8 const shift = idx * 16;
-	u32 const adt1 = dim2_read_ctr(ADT + ch_addr, 1);
-
-	if (((adt1 >> (ADT1_DNE_BIT + shift)) & 1) == 0)
-		return false;
-
-	{
-		u32 mask[4] = { 0, 0, 0, 0 };
-		u32 adt_w[4] = { 0, 0, 0, 0 };
-
-		mask[1] =
-			bit_mask(ADT1_DNE_BIT + shift) |
-			bit_mask(ADT1_ERR_BIT + shift) |
-			bit_mask(ADT1_RDY_BIT + shift);
-		dim2_write_ctr_mask(ADT + ch_addr, mask, adt_w);
-	}
-
-	/* clear channel status bit */
-	dimcb_io_write(&g.dim2->ACSR0, bit_mask(ch_addr));
-
-	return true;
-}
-
-/* -------------------------------------------------------------------------- */
-/* channel init routines */
-
-static void isoc_init(struct dim_channel *ch, u8 ch_addr, u16 packet_length)
-{
-	state_init(&ch->state);
-
-	ch->addr = ch_addr;
-
-	ch->packet_length = packet_length;
-	ch->bytes_per_frame = 0;
-	ch->done_sw_buffers_number = 0;
-}
-
-static void sync_init(struct dim_channel *ch, u8 ch_addr, u16 bytes_per_frame)
-{
-	state_init(&ch->state);
-
-	ch->addr = ch_addr;
-
-	ch->packet_length = 0;
-	ch->bytes_per_frame = bytes_per_frame;
-	ch->done_sw_buffers_number = 0;
-}
-
-static void channel_init(struct dim_channel *ch, u8 ch_addr)
-{
-	state_init(&ch->state);
-
-	ch->addr = ch_addr;
-
-	ch->packet_length = 0;
-	ch->bytes_per_frame = 0;
-	ch->done_sw_buffers_number = 0;
-}
-
-/* returns true if channel interrupt state is cleared */
-static bool channel_service_interrupt(struct dim_channel *ch)
-{
-	struct int_ch_state *const state = &ch->state;
-
-	if (!service_channel(ch->addr, state->idx2))
-		return false;
-
-	state->idx2 ^= 1;
-	state->request_counter++;
-	return true;
-}
-
-static bool channel_start(struct dim_channel *ch, u32 buf_addr, u16 buf_size)
-{
-	struct int_ch_state *const state = &ch->state;
-
-	if (buf_size <= 0)
-		return dim_on_error(DIM_ERR_BAD_BUFFER_SIZE, "Bad buffer size");
-
-	if (ch->packet_length == 0 && ch->bytes_per_frame == 0 &&
-	    buf_size != norm_ctrl_async_buffer_size(buf_size))
-		return dim_on_error(DIM_ERR_BAD_BUFFER_SIZE,
-				    "Bad control/async buffer size");
-
-	if (ch->packet_length &&
-	    buf_size != norm_isoc_buffer_size(buf_size, ch->packet_length))
-		return dim_on_error(DIM_ERR_BAD_BUFFER_SIZE,
-				    "Bad isochronous buffer size");
-
-	if (ch->bytes_per_frame &&
-	    buf_size != norm_sync_buffer_size(buf_size, ch->bytes_per_frame))
-		return dim_on_error(DIM_ERR_BAD_BUFFER_SIZE,
-				    "Bad synchronous buffer size");
-
-	if (state->level >= 2u)
-		return dim_on_error(DIM_ERR_OVERFLOW, "Channel overflow");
-
-	++state->level;
-
-	if (ch->packet_length || ch->bytes_per_frame)
-		dim2_start_isoc_sync(ch->addr, state->idx1, buf_addr, buf_size);
-	else
-		dim2_start_ctrl_async(ch->addr, state->idx1, buf_addr,
-				      buf_size);
-	state->idx1 ^= 1;
-
-	return true;
-}
-
-static u8 channel_service(struct dim_channel *ch)
-{
-	struct int_ch_state *const state = &ch->state;
-
-	if (state->service_counter != state->request_counter) {
-		state->service_counter++;
-		if (state->level == 0)
-			return DIM_ERR_UNDERFLOW;
-
-		--state->level;
-		ch->done_sw_buffers_number++;
-	}
-
-	return DIM_NO_ERROR;
-}
-
-static bool channel_detach_buffers(struct dim_channel *ch, u16 buffers_number)
-{
-	if (buffers_number > ch->done_sw_buffers_number)
-		return dim_on_error(DIM_ERR_UNDERFLOW, "Channel underflow");
-
-	ch->done_sw_buffers_number -= buffers_number;
-	return true;
-}
-
-/* -------------------------------------------------------------------------- */
-/* API */
-
-u8 dim_startup(void *dim_base_address, u32 mlb_clock)
-{
-	g.dim_is_initialized = false;
-
-	if (!dim_base_address)
-		return DIM_INIT_ERR_DIM_ADDR;
-
-	/* MediaLB clock: 0 - 256 fs, 1 - 512 fs, 2 - 1024 fs, 3 - 2048 fs */
-	/* MediaLB clock: 4 - 3072 fs, 5 - 4096 fs, 6 - 6144 fs, 7 - 8192 fs */
-	if (mlb_clock >= 8)
-		return DIM_INIT_ERR_MLB_CLOCK;
-
-	g.dim2 = dim_base_address;
-	g.dbr_map[0] = 0;
-	g.dbr_map[1] = 0;
-
-	dim2_initialize(mlb_clock >= 3, mlb_clock);
-
-	g.dim_is_initialized = true;
-
-	return DIM_NO_ERROR;
-}
-
-void dim_shutdown(void)
-{
-	g.dim_is_initialized = false;
-	dim2_cleanup();
-}
-
-bool dim_get_lock_state(void)
-{
-	return dim2_is_mlb_locked();
-}
-
-static u8 init_ctrl_async(struct dim_channel *ch, u8 type, u8 is_tx,
-			  u16 ch_address, u16 hw_buffer_size)
-{
-	if (!g.dim_is_initialized || !ch)
-		return DIM_ERR_DRIVER_NOT_INITIALIZED;
-
-	if (!check_channel_address(ch_address))
-		return DIM_INIT_ERR_CHANNEL_ADDRESS;
-
-	ch->dbr_size = hw_buffer_size;
-	ch->dbr_addr = alloc_dbr(ch->dbr_size);
-	if (ch->dbr_addr >= DBR_SIZE)
-		return DIM_INIT_ERR_OUT_OF_MEMORY;
-
-	channel_init(ch, ch_address / 2);
-
-	dim2_configure_channel(ch->addr, type, is_tx,
-			       ch->dbr_addr, ch->dbr_size, 0, false);
-
-	return DIM_NO_ERROR;
-}
-
-u16 dim_norm_ctrl_async_buffer_size(u16 buf_size)
-{
-	return norm_ctrl_async_buffer_size(buf_size);
-}
-
-/**
- * Retrieves maximal possible correct buffer size for isochronous data type
- * conform to given packet length and not bigger than given buffer size.
- *
- * Returns non-zero correct buffer size or zero by error.
- */
-u16 dim_norm_isoc_buffer_size(u16 buf_size, u16 packet_length)
-{
-	if (!check_packet_length(packet_length))
-		return 0;
-
-	return norm_isoc_buffer_size(buf_size, packet_length);
-}
-
-/**
- * Retrieves maximal possible correct buffer size for synchronous data type
- * conform to given bytes per frame and not bigger than given buffer size.
- *
- * Returns non-zero correct buffer size or zero by error.
- */
-u16 dim_norm_sync_buffer_size(u16 buf_size, u16 bytes_per_frame)
-{
-	if (!check_bytes_per_frame(bytes_per_frame))
-		return 0;
-
-	return norm_sync_buffer_size(buf_size, bytes_per_frame);
-}
-
-u8 dim_init_control(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		    u16 max_buffer_size)
-{
-	return init_ctrl_async(ch, CAT_CT_VAL_CONTROL, is_tx, ch_address,
-			       max_buffer_size);
-}
-
-u8 dim_init_async(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		  u16 max_buffer_size)
-{
-	return init_ctrl_async(ch, CAT_CT_VAL_ASYNC, is_tx, ch_address,
-			       max_buffer_size);
-}
-
-u8 dim_init_isoc(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		 u16 packet_length)
-{
-	if (!g.dim_is_initialized || !ch)
-		return DIM_ERR_DRIVER_NOT_INITIALIZED;
-
-	if (!check_channel_address(ch_address))
-		return DIM_INIT_ERR_CHANNEL_ADDRESS;
-
-	if (!check_packet_length(packet_length))
-		return DIM_ERR_BAD_CONFIG;
-
-	ch->dbr_size = packet_length * ISOC_DBR_FACTOR;
-	ch->dbr_addr = alloc_dbr(ch->dbr_size);
-	if (ch->dbr_addr >= DBR_SIZE)
-		return DIM_INIT_ERR_OUT_OF_MEMORY;
-
-	isoc_init(ch, ch_address / 2, packet_length);
-
-	dim2_configure_channel(ch->addr, CAT_CT_VAL_ISOC, is_tx, ch->dbr_addr,
-			       ch->dbr_size, packet_length, false);
-
-	return DIM_NO_ERROR;
-}
-
-u8 dim_init_sync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		 u16 bytes_per_frame)
-{
-	if (!g.dim_is_initialized || !ch)
-		return DIM_ERR_DRIVER_NOT_INITIALIZED;
-
-	if (!check_channel_address(ch_address))
-		return DIM_INIT_ERR_CHANNEL_ADDRESS;
-
-	if (!check_bytes_per_frame(bytes_per_frame))
-		return DIM_ERR_BAD_CONFIG;
-
-	ch->dbr_size = bytes_per_frame * SYNC_DBR_FACTOR;
-	ch->dbr_addr = alloc_dbr(ch->dbr_size);
-	if (ch->dbr_addr >= DBR_SIZE)
-		return DIM_INIT_ERR_OUT_OF_MEMORY;
-
-	sync_init(ch, ch_address / 2, bytes_per_frame);
-
-	dim2_configure_channel(ch->addr, CAT_CT_VAL_SYNC, is_tx,
-			       ch->dbr_addr, ch->dbr_size, 0, true);
-
-	return DIM_NO_ERROR;
-}
-
-u8 dim_destroy_channel(struct dim_channel *ch)
-{
-	if (!g.dim_is_initialized || !ch)
-		return DIM_ERR_DRIVER_NOT_INITIALIZED;
-
-	dim2_clear_channel(ch->addr);
-	if (ch->dbr_addr < DBR_SIZE)
-		free_dbr(ch->dbr_addr, ch->dbr_size);
-	ch->dbr_addr = DBR_SIZE;
-
-	return DIM_NO_ERROR;
-}
-
-void dim_service_irq(struct dim_channel *const *channels)
-{
-	bool state_changed;
-
-	if (!g.dim_is_initialized) {
-		dim_on_error(DIM_ERR_DRIVER_NOT_INITIALIZED,
-			     "DIM is not initialized");
-		return;
-	}
-
-	if (!channels) {
-		dim_on_error(DIM_ERR_DRIVER_NOT_INITIALIZED, "Bad channels");
-		return;
-	}
-
-	/*
-	 * Use while-loop and a flag to make sure the age is changed back at
-	 * least once, otherwise the interrupt may never come if CPU generates
-	 * interrupt on changing age.
-	 * This cycle runs not more than number of channels, because
-	 * channel_service_interrupt() routine doesn't start the channel again.
-	 */
-	do {
-		struct dim_channel *const *ch = channels;
-
-		state_changed = false;
-
-		while (*ch) {
-			state_changed |= channel_service_interrupt(*ch);
-			++ch;
-		}
-	} while (state_changed);
-
-	/* clear pending Interrupts */
-	dimcb_io_write(&g.dim2->MS0, 0);
-	dimcb_io_write(&g.dim2->MS1, 0);
-}
-
-u8 dim_service_channel(struct dim_channel *ch)
-{
-	if (!g.dim_is_initialized || !ch)
-		return DIM_ERR_DRIVER_NOT_INITIALIZED;
-
-	return channel_service(ch);
-}
-
-struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
-					     struct dim_ch_state_t *state_ptr)
-{
-	if (!ch || !state_ptr)
-		return NULL;
-
-	state_ptr->ready = ch->state.level < 2;
-	state_ptr->done_buffers = ch->done_sw_buffers_number;
-
-	return state_ptr;
-}
-
-bool dim_enqueue_buffer(struct dim_channel *ch, u32 buffer_addr,
-			u16 buffer_size)
-{
-	if (!ch)
-		return dim_on_error(DIM_ERR_DRIVER_NOT_INITIALIZED,
-				    "Bad channel");
-
-	return channel_start(ch, buffer_addr, buffer_size);
-}
-
-bool dim_detach_buffers(struct dim_channel *ch, u16 buffers_number)
-{
-	if (!ch)
-		return dim_on_error(DIM_ERR_DRIVER_NOT_INITIALIZED,
-				    "Bad channel");
-
-	return channel_detach_buffers(ch, buffers_number);
-}
diff --git a/recipes-kernel/hdm-dim2/files/dim2_hal.h b/recipes-kernel/hdm-dim2/files/dim2_hal.h
deleted file mode 100644
index 48cdd9c8c..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_hal.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/*
- * dim2_hal.h - DIM2 HAL interface
- * (MediaLB, Device Interface Macro IP, OS62420)
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-#ifndef _DIM2_HAL_H
-#define _DIM2_HAL_H
-
-#include <linux/types.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * The values below are specified in the hardware specification.
- * So, they should not be changed until the hardware specification changes.
- */
-enum mlb_clk_speed {
-	CLK_256FS = 0,
-	CLK_512FS = 1,
-	CLK_1024FS = 2,
-	CLK_2048FS = 3,
-	CLK_3072FS = 4,
-	CLK_4096FS = 5,
-	CLK_6144FS = 6,
-	CLK_8192FS = 7,
-};
-
-struct dim_ch_state_t {
-	bool ready; /* Shows readiness to enqueue next buffer */
-	u16 done_buffers; /* Number of completed buffers */
-};
-
-typedef int atomic_counter_t;
-
-struct int_ch_state {
-	/* changed only in interrupt context */
-	volatile atomic_counter_t request_counter;
-
-	/* changed only in task context */
-	volatile atomic_counter_t service_counter;
-
-	u8 idx1;
-	u8 idx2;
-	u8 level; /* [0..2], buffering level */
-};
-
-struct dim_channel {
-	struct int_ch_state state;
-	u8 addr;
-	u16 dbr_addr;
-	u16 dbr_size;
-	u16 packet_length; /*< Isochronous packet length in bytes. */
-	u16 bytes_per_frame; /*< Synchronous bytes per frame. */
-	u16 done_sw_buffers_number; /*< Done software buffers number. */
-};
-
-u8 dim_startup(void *dim_base_address, u32 mlb_clock);
-
-void dim_shutdown(void);
-
-bool dim_get_lock_state(void);
-
-u16 dim_norm_ctrl_async_buffer_size(u16 buf_size);
-
-u16 dim_norm_isoc_buffer_size(u16 buf_size, u16 packet_length);
-
-u16 dim_norm_sync_buffer_size(u16 buf_size, u16 bytes_per_frame);
-
-u8 dim_init_control(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		    u16 max_buffer_size);
-
-u8 dim_init_async(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		  u16 max_buffer_size);
-
-u8 dim_init_isoc(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		 u16 packet_length);
-
-u8 dim_init_sync(struct dim_channel *ch, u8 is_tx, u16 ch_address,
-		 u16 bytes_per_frame);
-
-u8 dim_destroy_channel(struct dim_channel *ch);
-
-void dim_service_irq(struct dim_channel *const *channels);
-
-u8 dim_service_channel(struct dim_channel *ch);
-
-struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
-					     struct dim_ch_state_t *state_ptr);
-
-bool dim_enqueue_buffer(struct dim_channel *ch, u32 buffer_addr,
-			u16 buffer_size);
-
-bool dim_detach_buffers(struct dim_channel *ch, u16 buffers_number);
-
-u32 dimcb_io_read(u32 *ptr32);
-
-void dimcb_io_write(u32 *ptr32, u32 value);
-
-void dimcb_on_error(u8 error_id, const char *error_message);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _DIM2_HAL_H */
diff --git a/recipes-kernel/hdm-dim2/files/dim2_hdm.c b/recipes-kernel/hdm-dim2/files/dim2_hdm.c
deleted file mode 100644
index 48ce7ab1b..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_hdm.c
+++ /dev/null
@@ -1,933 +0,0 @@
-/*
- * dim2_hdm.c - MediaLB DIM2 Hardware Dependent Module
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/printk.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/dma-mapping.h>
-#include <linux/sched.h>
-#include <linux/kthread.h>
-
-#include <mostcore.h>
-#include <networking.h>
-#include "dim2_hal.h"
-#include "dim2_hdm.h"
-#include "dim2_errors.h"
-#include "dim2_sysfs.h"
-
-#define DMA_CHANNELS (32 - 1)  /* channel 0 is a system channel */
-
-#define MAX_BUFFERS_PACKET      32
-#define MAX_BUFFERS_STREAMING   32
-#define MAX_BUF_SIZE_PACKET     2048
-#define MAX_BUF_SIZE_STREAMING  (8 * 1024)
-
-/* command line parameter to select clock speed */
-static char *clock_speed;
-module_param(clock_speed, charp, 0);
-MODULE_PARM_DESC(clock_speed, "MediaLB Clock Speed");
-
-/*
- * #############################################################################
- *
- * The define below activates an utility function used by HAL-simu
- * for calling DIM interrupt handler.
- * It is used only for TEST PURPOSE and shall be commented before release.
- *
- * #############################################################################
- */
-/* #define ENABLE_HDM_TEST */
-
-static DEFINE_SPINLOCK(dim_lock);
-
-static void dim2_tasklet_fn(unsigned long data);
-static DECLARE_TASKLET(dim2_tasklet, dim2_tasklet_fn, 0);
-
-/**
- * struct hdm_channel - private structure to keep channel specific data
- * @is_initialized: identifier to know whether the channel is initialized
- * @ch: HAL specific channel data
- * @pending_list: list to keep MBO's before starting transfer
- * @started_list: list to keep MBO's after starting transfer
- * @direction: channel direction (TX or RX)
- * @data_type: channel data type
- */
-struct hdm_channel {
-	char name[sizeof "caNNN"];
-	bool is_initialized;
-	struct dim_channel ch;
-	struct list_head pending_list;	/* before dim_enqueue_buffer() */
-	struct list_head started_list;	/* after dim_enqueue_buffer() */
-	enum most_channel_direction direction;
-	enum most_channel_data_type data_type;
-};
-
-/**
- * struct dim2_hdm - private structure to keep interface specific data
- * @hch: an array of channel specific data
- * @most_iface: most interface structure
- * @capabilities: an array of channel capability data
- * @io_base: I/O register base address
- * @irq_ahb0: dim2 AHB0 irq number
- * @clk_speed: user selectable (through command line parameter) clock speed
- * @netinfo_task: thread to deliver network status
- * @netinfo_waitq: waitq for the thread to sleep
- * @deliver_netinfo: to identify whether network status received
- * @mac_addrs: INIC mac address
- * @link_state: network link state
- * @atx_idx: index of async tx channel
- */
-struct dim2_hdm {
-	struct hdm_channel hch[DMA_CHANNELS];
-	struct most_channel_capability capabilities[DMA_CHANNELS];
-	struct most_interface most_iface;
-	char name[16 + sizeof "dim2-"];
-	void *io_base;
-	unsigned int irq_ahb0;
-	int clk_speed;
-	struct task_struct *netinfo_task;
-	wait_queue_head_t netinfo_waitq;
-	int deliver_netinfo;
-	unsigned char mac_addrs[6];
-	unsigned char link_state;
-	int atx_idx;
-	struct medialb_bus bus;
-};
-
-#define iface_to_hdm(iface) container_of(iface, struct dim2_hdm, most_iface)
-
-/* Macro to identify a network status message */
-#define PACKET_IS_NET_INFO(p)  \
-	(((p)[1] == 0x18) && ((p)[2] == 0x05) && ((p)[3] == 0x0C) && \
-	 ((p)[13] == 0x3C) && ((p)[14] == 0x00) && ((p)[15] == 0x0A))
-
-#if defined(ENABLE_HDM_TEST)
-static struct dim2_hdm *test_dev;
-#endif
-
-bool dim2_sysfs_get_state_cb(void)
-{
-	bool state;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dim_lock, flags);
-	state = dim_get_lock_state();
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-	return state;
-}
-
-/**
- * dimcb_io_read - callback from HAL to read an I/O register
- * @ptr32: register address
- */
-u32 dimcb_io_read(u32 *ptr32)
-{
-	return readl(ptr32);
-}
-
-/**
- * dimcb_io_write - callback from HAL to write value to an I/O register
- * @ptr32: register address
- * @value: value to write
- */
-void dimcb_io_write(u32 *ptr32, u32 value)
-{
-	writel(value, ptr32);
-}
-
-/**
- * dimcb_on_error - callback from HAL to report miscommunication between
- * HDM and HAL
- * @error_id: Error ID
- * @error_message: Error message. Some text in a free format
- */
-void dimcb_on_error(u8 error_id, const char *error_message)
-{
-	pr_err("dimcb_on_error: error_id - %d, error_message - %s\n", error_id,
-	       error_message);
-}
-
-/**
- * startup_dim - initialize the dim2 interface
- * @pdev: platform device
- *
- * Get the value of command line parameter "clock_speed" if given or use the
- * default value, enable the clock and PLL, and initialize the dim2 interface.
- */
-static int startup_dim(struct platform_device *pdev)
-{
-	struct dim2_hdm *dev = platform_get_drvdata(pdev);
-	struct dim2_platform_data *pdata = pdev->dev.platform_data;
-	u8 hal_ret;
-
-	dev->clk_speed = -1;
-
-	if (clock_speed) {
-		if (!strcmp(clock_speed, "256fs"))
-			dev->clk_speed = CLK_256FS;
-		else if (!strcmp(clock_speed, "512fs"))
-			dev->clk_speed = CLK_512FS;
-		else if (!strcmp(clock_speed, "1024fs"))
-			dev->clk_speed = CLK_1024FS;
-		else if (!strcmp(clock_speed, "2048fs"))
-			dev->clk_speed = CLK_2048FS;
-		else if (!strcmp(clock_speed, "3072fs"))
-			dev->clk_speed = CLK_3072FS;
-		else if (!strcmp(clock_speed, "4096fs"))
-			dev->clk_speed = CLK_4096FS;
-		else if (!strcmp(clock_speed, "6144fs"))
-			dev->clk_speed = CLK_6144FS;
-		else if (!strcmp(clock_speed, "8192fs"))
-			dev->clk_speed = CLK_8192FS;
-	}
-
-	if (dev->clk_speed == -1) {
-		pr_info("Bad or missing clock speed parameter, using default value: 3072fs\n");
-		dev->clk_speed = CLK_3072FS;
-	} else {
-		pr_info("Selected clock speed: %s\n", clock_speed);
-	}
-	if (pdata && pdata->init) {
-		int ret = pdata->init(pdata, dev->io_base, dev->clk_speed);
-
-		if (ret)
-			return ret;
-	}
-
-	hal_ret = dim_startup(dev->io_base, dev->clk_speed);
-	if (hal_ret != DIM_NO_ERROR) {
-		pr_err("dim_startup failed: %d\n", hal_ret);
-		if (pdata && pdata->destroy)
-			pdata->destroy(pdata);
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-/**
- * try_start_dim_transfer - try to transfer a buffer on a channel
- * @hdm_ch: channel specific data
- *
- * Transfer a buffer from pending_list if the channel is ready
- */
-static int try_start_dim_transfer(struct hdm_channel *hdm_ch)
-{
-	u16 buf_size;
-	struct list_head *head = &hdm_ch->pending_list;
-	struct mbo *mbo;
-	unsigned long flags;
-	struct dim_ch_state_t st;
-
-	BUG_ON(!hdm_ch);
-	BUG_ON(!hdm_ch->is_initialized);
-
-	spin_lock_irqsave(&dim_lock, flags);
-	if (list_empty(head)) {
-		spin_unlock_irqrestore(&dim_lock, flags);
-		return -EAGAIN;
-	}
-
-	if (!dim_get_channel_state(&hdm_ch->ch, &st)->ready) {
-		spin_unlock_irqrestore(&dim_lock, flags);
-		return -EAGAIN;
-	}
-
-	mbo = list_entry(head->next, struct mbo, list);
-	buf_size = mbo->buffer_length;
-
-	BUG_ON(mbo->bus_address == 0);
-	if (!dim_enqueue_buffer(&hdm_ch->ch, mbo->bus_address, buf_size)) {
-		list_del(head->next);
-		spin_unlock_irqrestore(&dim_lock, flags);
-		mbo->processed_length = 0;
-		mbo->status = MBO_E_INVAL;
-		mbo->complete(mbo);
-		return -EFAULT;
-	}
-
-	list_move_tail(head->next, &hdm_ch->started_list);
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-	return 0;
-}
-
-/**
- * deliver_netinfo_thread - thread to deliver network status to mostcore
- * @data: private data
- *
- * Wait for network status and deliver it to mostcore once it is received
- */
-static int deliver_netinfo_thread(void *data)
-{
-	struct dim2_hdm *dev = data;
-
-	while (!kthread_should_stop()) {
-		wait_event_interruptible(dev->netinfo_waitq,
-					 dev->deliver_netinfo ||
-					 kthread_should_stop());
-
-		if (dev->deliver_netinfo) {
-			dev->deliver_netinfo--;
-			most_deliver_netinfo(&dev->most_iface, dev->link_state,
-					     dev->mac_addrs);
-		}
-	}
-
-	return 0;
-}
-
-/**
- * retrieve_netinfo - retrieve network status from received buffer
- * @dev: private data
- * @mbo: received MBO
- *
- * Parse the message in buffer and get node address, link state, MAC address.
- * Wake up a thread to deliver this status to mostcore
- */
-static void retrieve_netinfo(struct dim2_hdm *dev, struct mbo *mbo)
-{
-	u8 *data = mbo->virt_address;
-	u8 *mac = dev->mac_addrs;
-
-	pr_info("Node Address: 0x%03x\n", (u16)data[16] << 8 | data[17]);
-	dev->link_state = data[18];
-	pr_info("NIState: %d\n", dev->link_state);
-	memcpy(mac, data + 19, 6);
-	pr_info("MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n",
-		mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
-	dev->deliver_netinfo++;
-	wake_up_interruptible(&dev->netinfo_waitq);
-}
-
-/**
- * service_done_flag - handle completed buffers
- * @dev: private data
- * @ch_idx: channel index
- *
- * Return back the completed buffers to mostcore, using completion callback
- */
-static void service_done_flag(struct dim2_hdm *dev, int ch_idx)
-{
-	struct hdm_channel *hdm_ch = dev->hch + ch_idx;
-	struct dim_ch_state_t st;
-	struct list_head *head;
-	struct mbo *mbo;
-	int done_buffers;
-	unsigned long flags;
-	u8 *data;
-
-	BUG_ON(!hdm_ch);
-	BUG_ON(!hdm_ch->is_initialized);
-
-	spin_lock_irqsave(&dim_lock, flags);
-
-	done_buffers = dim_get_channel_state(&hdm_ch->ch, &st)->done_buffers;
-	if (!done_buffers) {
-		spin_unlock_irqrestore(&dim_lock, flags);
-		return;
-	}
-
-	if (!dim_detach_buffers(&hdm_ch->ch, done_buffers)) {
-		spin_unlock_irqrestore(&dim_lock, flags);
-		return;
-	}
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-	head = &hdm_ch->started_list;
-
-	while (done_buffers) {
-		spin_lock_irqsave(&dim_lock, flags);
-		if (list_empty(head)) {
-			spin_unlock_irqrestore(&dim_lock, flags);
-			pr_crit("hard error: started_mbo list is empty whereas DIM2 has sent buffers\n");
-			break;
-		}
-
-		mbo = list_entry(head->next, struct mbo, list);
-		list_del(head->next);
-		spin_unlock_irqrestore(&dim_lock, flags);
-
-		data = mbo->virt_address;
-
-		if (hdm_ch->data_type == MOST_CH_ASYNC &&
-		    hdm_ch->direction == MOST_CH_RX &&
-		    PACKET_IS_NET_INFO(data)) {
-			retrieve_netinfo(dev, mbo);
-
-			spin_lock_irqsave(&dim_lock, flags);
-			list_add_tail(&mbo->list, &hdm_ch->pending_list);
-			spin_unlock_irqrestore(&dim_lock, flags);
-		} else {
-			if (hdm_ch->data_type == MOST_CH_CONTROL ||
-			    hdm_ch->data_type == MOST_CH_ASYNC) {
-				u32 const data_size =
-					(u32)data[0] * 256 + data[1] + 2;
-
-				mbo->processed_length =
-					min_t(u32, data_size,
-					      mbo->buffer_length);
-			} else {
-				mbo->processed_length = mbo->buffer_length;
-			}
-			mbo->status = MBO_SUCCESS;
-			mbo->complete(mbo);
-		}
-
-		done_buffers--;
-	}
-}
-
-static struct dim_channel **get_active_channels(struct dim2_hdm *dev,
-						struct dim_channel **buffer)
-{
-	int idx = 0;
-	int ch_idx;
-
-	for (ch_idx = 0; ch_idx < DMA_CHANNELS; ch_idx++) {
-		if (dev->hch[ch_idx].is_initialized)
-			buffer[idx++] = &dev->hch[ch_idx].ch;
-	}
-	buffer[idx++] = NULL;
-
-	return buffer;
-}
-
-/**
- * dim2_tasklet_fn - tasklet function
- * @data: private data
- *
- * Service each initialized channel, if needed
- */
-static void dim2_tasklet_fn(unsigned long data)
-{
-	struct dim2_hdm *dev = (struct dim2_hdm *)data;
-	unsigned long flags;
-	int ch_idx;
-
-	for (ch_idx = 0; ch_idx < DMA_CHANNELS; ch_idx++) {
-		if (!dev->hch[ch_idx].is_initialized)
-			continue;
-
-		spin_lock_irqsave(&dim_lock, flags);
-		dim_service_channel(&dev->hch[ch_idx].ch);
-		spin_unlock_irqrestore(&dim_lock, flags);
-
-		service_done_flag(dev, ch_idx);
-		while (!try_start_dim_transfer(dev->hch + ch_idx))
-			continue;
-	}
-}
-
-/**
- * dim2_ahb_isr - interrupt service routine
- * @irq: irq number
- * @_dev: private data
- *
- * Acknowledge the interrupt and schedule a tasklet to service channels.
- * Return IRQ_HANDLED.
- */
-static irqreturn_t dim2_ahb_isr(int irq, void *_dev)
-{
-	struct dim2_hdm *dev = _dev;
-	struct dim_channel *buffer[DMA_CHANNELS + 1];
-	unsigned long flags;
-
-	spin_lock_irqsave(&dim_lock, flags);
-	dim_service_irq(get_active_channels(dev, buffer));
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-#if !defined(ENABLE_HDM_TEST)
-	dim2_tasklet.data = (unsigned long)dev;
-	tasklet_schedule(&dim2_tasklet);
-#else
-	dim2_tasklet_fn((unsigned long)dev);
-#endif
-	return IRQ_HANDLED;
-}
-
-#if defined(ENABLE_HDM_TEST)
-
-/*
- * Utility function used by HAL-simu for calling DIM interrupt handler.
- * It is used only for TEST PURPOSE.
- */
-void raise_dim_interrupt(void)
-{
-	(void)dim2_ahb_isr(0, test_dev);
-}
-#endif
-
-/**
- * complete_all_mbos - complete MBO's in a list
- * @head: list head
- *
- * Delete all the entries in list and return back MBO's to mostcore using
- * completion call back.
- */
-static void complete_all_mbos(struct list_head *head)
-{
-	unsigned long flags;
-	struct mbo *mbo;
-
-	for (;;) {
-		spin_lock_irqsave(&dim_lock, flags);
-		if (list_empty(head)) {
-			spin_unlock_irqrestore(&dim_lock, flags);
-			break;
-		}
-
-		mbo = list_entry(head->next, struct mbo, list);
-		list_del(head->next);
-		spin_unlock_irqrestore(&dim_lock, flags);
-
-		mbo->processed_length = 0;
-		mbo->status = MBO_E_CLOSE;
-		mbo->complete(mbo);
-	}
-}
-
-/**
- * configure_channel - initialize a channel
- * @iface: interface the channel belongs to
- * @channel: channel to be configured
- * @channel_config: structure that holds the configuration information
- *
- * Receives configuration information from mostcore and initialize
- * the corresponding channel. Return 0 on success, negative on failure.
- */
-static int configure_channel(struct most_interface *most_iface, int ch_idx,
-			     struct most_channel_config *ccfg)
-{
-	struct dim2_hdm *dev = iface_to_hdm(most_iface);
-	bool const is_tx = ccfg->direction == MOST_CH_TX;
-	u16 const sub_size = ccfg->subbuffer_size;
-	u16 const buf_size = ccfg->buffer_size;
-	u16 new_size;
-	unsigned long flags;
-	u8 hal_ret;
-	int const ch_addr = ch_idx * 2 + 2;
-	struct hdm_channel *const hdm_ch = dev->hch + ch_idx;
-
-	BUG_ON(ch_idx < 0 || ch_idx >= DMA_CHANNELS);
-
-	if (hdm_ch->is_initialized)
-		return -EPERM;
-
-	switch (ccfg->data_type) {
-	case MOST_CH_CONTROL:
-		new_size = dim_norm_ctrl_async_buffer_size(buf_size);
-		if (new_size == 0) {
-			pr_err("%s: too small buffer size\n", hdm_ch->name);
-			return -EINVAL;
-		}
-		ccfg->buffer_size = new_size;
-		if (new_size != buf_size)
-			pr_warn("%s: fixed buffer size (%d -> %d)\n",
-				hdm_ch->name, buf_size, new_size);
-		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = dim_init_control(&hdm_ch->ch, is_tx, ch_addr,
-					   buf_size);
-		break;
-	case MOST_CH_ASYNC:
-		new_size = dim_norm_ctrl_async_buffer_size(buf_size);
-		if (new_size == 0) {
-			pr_err("%s: too small buffer size\n", hdm_ch->name);
-			return -EINVAL;
-		}
-		ccfg->buffer_size = new_size;
-		if (new_size != buf_size)
-			pr_warn("%s: fixed buffer size (%d -> %d)\n",
-				hdm_ch->name, buf_size, new_size);
-		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = dim_init_async(&hdm_ch->ch, is_tx, ch_addr, buf_size);
-		break;
-	case MOST_CH_ISOC_AVP:
-		new_size = dim_norm_isoc_buffer_size(buf_size, sub_size);
-		if (new_size == 0) {
-			pr_err("%s: invalid sub-buffer size or too small buffer size\n",
-			       hdm_ch->name);
-			return -EINVAL;
-		}
-		ccfg->buffer_size = new_size;
-		if (new_size != buf_size)
-			pr_warn("%s: fixed buffer size (%d -> %d)\n",
-				hdm_ch->name, buf_size, new_size);
-		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = dim_init_isoc(&hdm_ch->ch, is_tx, ch_addr, sub_size);
-		break;
-	case MOST_CH_SYNC:
-		new_size = dim_norm_sync_buffer_size(buf_size, sub_size);
-		if (new_size == 0) {
-			pr_err("%s: invalid sub-buffer size or too small buffer size\n",
-			       hdm_ch->name);
-			return -EINVAL;
-		}
-		ccfg->buffer_size = new_size;
-		if (new_size != buf_size)
-			pr_warn("%s: fixed buffer size (%d -> %d)\n",
-				hdm_ch->name, buf_size, new_size);
-		spin_lock_irqsave(&dim_lock, flags);
-		hal_ret = dim_init_sync(&hdm_ch->ch, is_tx, ch_addr, sub_size);
-		break;
-	default:
-		pr_err("%s: configure failed, bad channel type: %d\n",
-		       hdm_ch->name, ccfg->data_type);
-		return -EINVAL;
-	}
-
-	if (hal_ret != DIM_NO_ERROR) {
-		spin_unlock_irqrestore(&dim_lock, flags);
-		pr_err("%s: configure failed (%d), type: %d, is_tx: %d\n",
-		       hdm_ch->name, hal_ret, ccfg->data_type, (int)is_tx);
-		return -ENODEV;
-	}
-
-	hdm_ch->data_type = ccfg->data_type;
-	hdm_ch->direction = ccfg->direction;
-	hdm_ch->is_initialized = true;
-
-	if (hdm_ch->data_type == MOST_CH_ASYNC &&
-	    hdm_ch->direction == MOST_CH_TX &&
-	    dev->atx_idx < 0)
-		dev->atx_idx = ch_idx;
-
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-	return 0;
-}
-
-/**
- * enqueue - enqueue a buffer for data transfer
- * @iface: intended interface
- * @channel: ID of the channel the buffer is intended for
- * @mbo: pointer to the buffer object
- *
- * Push the buffer into pending_list and try to transfer one buffer from
- * pending_list. Return 0 on success, negative on failure.
- */
-static int enqueue(struct most_interface *most_iface, int ch_idx,
-		   struct mbo *mbo)
-{
-	struct dim2_hdm *dev = iface_to_hdm(most_iface);
-	struct hdm_channel *hdm_ch = dev->hch + ch_idx;
-	unsigned long flags;
-
-	BUG_ON(ch_idx < 0 || ch_idx >= DMA_CHANNELS);
-
-	if (!hdm_ch->is_initialized)
-		return -EPERM;
-
-	if (mbo->bus_address == 0)
-		return -EFAULT;
-
-	spin_lock_irqsave(&dim_lock, flags);
-	list_add_tail(&mbo->list, &hdm_ch->pending_list);
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-	(void)try_start_dim_transfer(hdm_ch);
-
-	return 0;
-}
-
-/**
- * request_netinfo - triggers retrieving of network info
- * @iface: pointer to the interface
- * @channel_id: corresponding channel ID
- *
- * Send a command to INIC which triggers retrieving of network info by means of
- * "Message exchange over MDP/MEP". Return 0 on success, negative on failure.
- */
-static void request_netinfo(struct most_interface *most_iface, int ch_idx)
-{
-	struct dim2_hdm *dev = iface_to_hdm(most_iface);
-	struct mbo *mbo;
-	u8 *data;
-
-	if (dev->atx_idx < 0) {
-		pr_err("Async Tx Not initialized\n");
-		return;
-	}
-
-	mbo = most_get_mbo(&dev->most_iface, dev->atx_idx, NULL);
-	if (!mbo)
-		return;
-
-	mbo->buffer_length = 5;
-
-	data = mbo->virt_address;
-
-	data[0] = 0x00; /* PML High byte */
-	data[1] = 0x03; /* PML Low byte */
-	data[2] = 0x02; /* PMHL */
-	data[3] = 0x08; /* FPH */
-	data[4] = 0x40; /* FMF (FIFO cmd msg - Triggers NAOverMDP) */
-
-	most_submit_mbo(mbo);
-}
-
-/**
- * poison_channel - poison buffers of a channel
- * @iface: pointer to the interface the channel to be poisoned belongs to
- * @channel_id: corresponding channel ID
- *
- * Destroy a channel and complete all the buffers in both started_list &
- * pending_list. Return 0 on success, negative on failure.
- */
-static int poison_channel(struct most_interface *most_iface, int ch_idx)
-{
-	struct dim2_hdm *dev = iface_to_hdm(most_iface);
-	struct hdm_channel *hdm_ch = dev->hch + ch_idx;
-	unsigned long flags;
-	u8 hal_ret;
-	int ret = 0;
-
-	BUG_ON(ch_idx < 0 || ch_idx >= DMA_CHANNELS);
-
-	if (!hdm_ch->is_initialized)
-		return -EPERM;
-
-	spin_lock_irqsave(&dim_lock, flags);
-	hal_ret = dim_destroy_channel(&hdm_ch->ch);
-	hdm_ch->is_initialized = false;
-	if (ch_idx == dev->atx_idx)
-		dev->atx_idx = -1;
-	spin_unlock_irqrestore(&dim_lock, flags);
-	if (hal_ret != DIM_NO_ERROR) {
-		pr_err("HAL Failed to close channel %s\n", hdm_ch->name);
-		ret = -EFAULT;
-	}
-
-	complete_all_mbos(&hdm_ch->started_list);
-	complete_all_mbos(&hdm_ch->pending_list);
-
-	return ret;
-}
-
-/*
- * dim2_probe - dim2 probe handler
- * @pdev: platform device structure
- *
- * Register the dim2 interface with mostcore and initialize it.
- * Return 0 on success, negative on failure.
- */
-static int dim2_probe(struct platform_device *pdev)
-{
-	struct dim2_hdm *dev;
-	struct resource *res;
-	int ret, i;
-	struct kobject *kobj;
-
-	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
-		return -ENOMEM;
-
-	dev->atx_idx = -1;
-
-	platform_set_drvdata(pdev, dev);
-#if defined(ENABLE_HDM_TEST)
-	test_dev = dev;
-#else
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		pr_err("no memory region defined\n");
-		ret = -ENOENT;
-		goto err_free_dev;
-	}
-
-	if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
-		pr_err("failed to request mem region\n");
-		ret = -EBUSY;
-		goto err_free_dev;
-	}
-
-	dev->io_base = ioremap(res->start, resource_size(res));
-	if (!dev->io_base) {
-		pr_err("failed to ioremap\n");
-		ret = -ENOMEM;
-		goto err_release_mem;
-	}
-
-	ret = platform_get_irq(pdev, 0);
-	if (ret < 0) {
-		pr_err("failed to get irq\n");
-		goto err_unmap_io;
-	}
-	dev->irq_ahb0 = ret;
-
-	ret = request_irq(dev->irq_ahb0, dim2_ahb_isr, 0, "mlb_ahb0", dev);
-	if (ret) {
-		pr_err("failed to request IRQ: %d, err: %d\n",
-		       dev->irq_ahb0, ret);
-		goto err_unmap_io;
-	}
-#endif
-	init_waitqueue_head(&dev->netinfo_waitq);
-	dev->deliver_netinfo = 0;
-	dev->netinfo_task = kthread_run(&deliver_netinfo_thread, (void *)dev,
-					"dim2_netinfo");
-	if (IS_ERR(dev->netinfo_task)) {
-		ret = PTR_ERR(dev->netinfo_task);
-		goto err_free_irq;
-	}
-
-	for (i = 0; i < DMA_CHANNELS; i++) {
-		struct most_channel_capability *cap = dev->capabilities + i;
-		struct hdm_channel *hdm_ch = dev->hch + i;
-
-		INIT_LIST_HEAD(&hdm_ch->pending_list);
-		INIT_LIST_HEAD(&hdm_ch->started_list);
-		hdm_ch->is_initialized = false;
-		snprintf(hdm_ch->name, sizeof(hdm_ch->name), "ca%d", i * 2 + 2);
-
-		cap->name_suffix = hdm_ch->name;
-		cap->direction = MOST_CH_RX | MOST_CH_TX;
-		cap->data_type = MOST_CH_CONTROL | MOST_CH_ASYNC |
-				 MOST_CH_ISOC_AVP | MOST_CH_SYNC;
-		cap->num_buffers_packet = MAX_BUFFERS_PACKET;
-		cap->buffer_size_packet = MAX_BUF_SIZE_PACKET;
-		cap->num_buffers_streaming = MAX_BUFFERS_STREAMING;
-		cap->buffer_size_streaming = MAX_BUF_SIZE_STREAMING;
-	}
-
-	{
-		const char *fmt;
-
-		if (sizeof(res->start) == sizeof(long long))
-			fmt = "dim2-%016llx";
-		else if (sizeof(res->start) == sizeof(long))
-			fmt = "dim2-%016lx";
-		else
-			fmt = "dim2-%016x";
-
-		snprintf(dev->name, sizeof(dev->name), fmt, res->start);
-	}
-
-	dev->most_iface.interface = ITYPE_MEDIALB_DIM2;
-	dev->most_iface.description = dev->name;
-	dev->most_iface.num_channels = DMA_CHANNELS;
-	dev->most_iface.channel_vector = dev->capabilities;
-	dev->most_iface.configure = configure_channel;
-	dev->most_iface.enqueue = enqueue;
-	dev->most_iface.poison_channel = poison_channel;
-	dev->most_iface.request_netinfo = request_netinfo;
-
-	kobj = most_register_interface(&dev->most_iface);
-	if (IS_ERR(kobj)) {
-		ret = PTR_ERR(kobj);
-		pr_err("failed to register MOST interface\n");
-		goto err_stop_thread;
-	}
-
-	ret = dim2_sysfs_probe(&dev->bus, kobj);
-	if (ret)
-		goto err_unreg_iface;
-
-	ret = startup_dim(pdev);
-	if (ret) {
-		pr_err("failed to initialize DIM2\n");
-		goto err_destroy_bus;
-	}
-
-	return 0;
-
-err_destroy_bus:
-	dim2_sysfs_destroy(&dev->bus);
-err_unreg_iface:
-	most_deregister_interface(&dev->most_iface);
-err_stop_thread:
-	kthread_stop(dev->netinfo_task);
-err_free_irq:
-#if !defined(ENABLE_HDM_TEST)
-	free_irq(dev->irq_ahb0, dev);
-err_unmap_io:
-	iounmap(dev->io_base);
-err_release_mem:
-	release_mem_region(res->start, resource_size(res));
-err_free_dev:
-#endif
-	kfree(dev);
-
-	return ret;
-}
-
-/**
- * dim2_remove - dim2 remove handler
- * @pdev: platform device structure
- *
- * Unregister the interface from mostcore
- */
-static int dim2_remove(struct platform_device *pdev)
-{
-	struct dim2_hdm *dev = platform_get_drvdata(pdev);
-	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	struct dim2_platform_data *pdata = pdev->dev.platform_data;
-	unsigned long flags;
-
-	spin_lock_irqsave(&dim_lock, flags);
-	dim_shutdown();
-	spin_unlock_irqrestore(&dim_lock, flags);
-
-	if (pdata && pdata->destroy)
-		pdata->destroy(pdata);
-
-	dim2_sysfs_destroy(&dev->bus);
-	most_deregister_interface(&dev->most_iface);
-	kthread_stop(dev->netinfo_task);
-#if !defined(ENABLE_HDM_TEST)
-	free_irq(dev->irq_ahb0, dev);
-	iounmap(dev->io_base);
-	release_mem_region(res->start, resource_size(res));
-#endif
-	kfree(dev);
-	platform_set_drvdata(pdev, NULL);
-
-	/*
-	 * break link to local platform_device_id struct
-	 * to prevent crash by unload platform device module
-	 */
-	pdev->id_entry = NULL;
-
-	return 0;
-}
-
-static struct platform_device_id dim2_id[] = {
-	{ "medialb_dim2" },
-	{ }, /* Terminating entry */
-};
-
-MODULE_DEVICE_TABLE(platform, dim2_id);
-
-static struct platform_driver dim2_driver = {
-	.probe = dim2_probe,
-	.remove = dim2_remove,
-	.id_table = dim2_id,
-	.driver = {
-		.name = "hdm_dim2",
-	},
-};
-
-module_platform_driver(dim2_driver);
-
-MODULE_AUTHOR("Jain Roy Ambi <JainRoy.Ambi@microchip.com>");
-MODULE_AUTHOR("Andrey Shvetsov <andrey.shvetsov@k2l.de>");
-MODULE_DESCRIPTION("MediaLB DIM2 Hardware Dependent Module");
-MODULE_LICENSE("GPL");
diff --git a/recipes-kernel/hdm-dim2/files/dim2_hdm.h b/recipes-kernel/hdm-dim2/files/dim2_hdm.h
deleted file mode 100644
index 1c94e3355..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_hdm.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * dim2_hdm.h - MediaLB DIM2 HDM Header
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-#ifndef DIM2_HDM_H
-#define	DIM2_HDM_H
-
-struct device;
-
-/* platform dependent data for dim2 interface */
-struct dim2_platform_data {
-	int (*init)(struct dim2_platform_data *pd, void *io_base,
-		    int clk_speed);
-	void (*destroy)(struct dim2_platform_data *pd);
-	void *priv;
-};
-
-#endif	/* DIM2_HDM_H */
diff --git a/recipes-kernel/hdm-dim2/files/dim2_reg.h b/recipes-kernel/hdm-dim2/files/dim2_reg.h
deleted file mode 100644
index bcf6a79f6..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_reg.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * dim2_reg.h - Definitions for registers of DIM2
- * (MediaLB, Device Interface Macro IP, OS62420)
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-#ifndef DIM2_OS62420_H
-#define	DIM2_OS62420_H
-
-#include <linux/types.h>
-
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-struct dim2_regs {
-	/* 0x00 */ u32 MLBC0;
-	/* 0x01 */ u32 rsvd0[1];
-	/* 0x02 */ u32 MLBPC0;
-	/* 0x03 */ u32 MS0;
-	/* 0x04 */ u32 rsvd1[1];
-	/* 0x05 */ u32 MS1;
-	/* 0x06 */ u32 rsvd2[2];
-	/* 0x08 */ u32 MSS;
-	/* 0x09 */ u32 MSD;
-	/* 0x0A */ u32 rsvd3[1];
-	/* 0x0B */ u32 MIEN;
-	/* 0x0C */ u32 rsvd4[1];
-	/* 0x0D */ u32 MLBPC2;
-	/* 0x0E */ u32 MLBPC1;
-	/* 0x0F */ u32 MLBC1;
-	/* 0x10 */ u32 rsvd5[0x10];
-	/* 0x20 */ u32 HCTL;
-	/* 0x21 */ u32 rsvd6[1];
-	/* 0x22 */ u32 HCMR0;
-	/* 0x23 */ u32 HCMR1;
-	/* 0x24 */ u32 HCER0;
-	/* 0x25 */ u32 HCER1;
-	/* 0x26 */ u32 HCBR0;
-	/* 0x27 */ u32 HCBR1;
-	/* 0x28 */ u32 rsvd7[8];
-	/* 0x30 */ u32 MDAT0;
-	/* 0x31 */ u32 MDAT1;
-	/* 0x32 */ u32 MDAT2;
-	/* 0x33 */ u32 MDAT3;
-	/* 0x34 */ u32 MDWE0;
-	/* 0x35 */ u32 MDWE1;
-	/* 0x36 */ u32 MDWE2;
-	/* 0x37 */ u32 MDWE3;
-	/* 0x38 */ u32 MCTL;
-	/* 0x39 */ u32 MADR;
-	/* 0x3A */ u32 rsvd8[0xB6];
-	/* 0xF0 */ u32 ACTL;
-	/* 0xF1 */ u32 rsvd9[3];
-	/* 0xF4 */ u32 ACSR0;
-	/* 0xF5 */ u32 ACSR1;
-	/* 0xF6 */ u32 ACMR0;
-	/* 0xF7 */ u32 ACMR1;
-};
-
-#define DIM2_MASK(n)  (~((~(u32)0) << (n)))
-
-enum {
-	MLBC0_MLBLK_BIT = 7,
-
-	MLBC0_MLBPEN_BIT = 5,
-
-	MLBC0_MLBCLK_SHIFT = 2,
-	MLBC0_MLBCLK_VAL_256FS = 0,
-	MLBC0_MLBCLK_VAL_512FS = 1,
-	MLBC0_MLBCLK_VAL_1024FS = 2,
-	MLBC0_MLBCLK_VAL_2048FS = 3,
-
-	MLBC0_FCNT_SHIFT = 15,
-	MLBC0_FCNT_MASK = 7,
-	MLBC0_FCNT_VAL_1FPSB = 0,
-	MLBC0_FCNT_VAL_2FPSB = 1,
-	MLBC0_FCNT_VAL_4FPSB = 2,
-	MLBC0_FCNT_VAL_8FPSB = 3,
-	MLBC0_FCNT_VAL_16FPSB = 4,
-	MLBC0_FCNT_VAL_32FPSB = 5,
-	MLBC0_FCNT_VAL_64FPSB = 6,
-
-	MLBC0_MLBEN_BIT = 0,
-
-	MIEN_CTX_BREAK_BIT = 29,
-	MIEN_CTX_PE_BIT = 28,
-	MIEN_CTX_DONE_BIT = 27,
-
-	MIEN_CRX_BREAK_BIT = 26,
-	MIEN_CRX_PE_BIT = 25,
-	MIEN_CRX_DONE_BIT = 24,
-
-	MIEN_ATX_BREAK_BIT = 22,
-	MIEN_ATX_PE_BIT = 21,
-	MIEN_ATX_DONE_BIT = 20,
-
-	MIEN_ARX_BREAK_BIT = 19,
-	MIEN_ARX_PE_BIT = 18,
-	MIEN_ARX_DONE_BIT = 17,
-
-	MIEN_SYNC_PE_BIT = 16,
-
-	MIEN_ISOC_BUFO_BIT = 1,
-	MIEN_ISOC_PE_BIT = 0,
-
-	MLBC1_NDA_SHIFT = 8,
-	MLBC1_NDA_MASK = 0xFF,
-
-	MLBC1_CLKMERR_BIT = 7,
-	MLBC1_LOCKERR_BIT = 6,
-
-	ACTL_DMA_MODE_BIT = 2,
-	ACTL_DMA_MODE_VAL_DMA_MODE_0 = 0,
-	ACTL_DMA_MODE_VAL_DMA_MODE_1 = 1,
-	ACTL_SCE_BIT = 0,
-
-	HCTL_EN_BIT = 15
-};
-
-enum {
-	CDT1_BS_ISOC_SHIFT = 0,
-	CDT1_BS_ISOC_MASK = DIM2_MASK(9),
-
-	CDT3_BD_SHIFT = 0,
-	CDT3_BD_MASK = DIM2_MASK(12),
-	CDT3_BD_ISOC_MASK = DIM2_MASK(13),
-	CDT3_BA_SHIFT = 16,
-
-	ADT0_CE_BIT = 15,
-	ADT0_LE_BIT = 14,
-	ADT0_PG_BIT = 13,
-
-	ADT1_RDY_BIT = 15,
-	ADT1_DNE_BIT = 14,
-	ADT1_ERR_BIT = 13,
-	ADT1_PS_BIT = 12,
-	ADT1_MEP_BIT = 11,
-	ADT1_BD_SHIFT = 0,
-	ADT1_CTRL_ASYNC_BD_MASK = DIM2_MASK(11),
-	ADT1_ISOC_SYNC_BD_MASK = DIM2_MASK(13),
-
-	CAT_MFE_BIT = 14,
-
-	CAT_MT_BIT = 13,
-
-	CAT_RNW_BIT = 12,
-
-	CAT_CE_BIT = 11,
-
-	CAT_CT_SHIFT = 8,
-	CAT_CT_VAL_SYNC = 0,
-	CAT_CT_VAL_CONTROL = 1,
-	CAT_CT_VAL_ASYNC = 2,
-	CAT_CT_VAL_ISOC = 3,
-
-	CAT_CL_SHIFT = 0,
-	CAT_CL_MASK = DIM2_MASK(6)
-};
-
-#ifdef	__cplusplus
-}
-#endif
-
-#endif	/* DIM2_OS62420_H */
diff --git a/recipes-kernel/hdm-dim2/files/dim2_sysfs.c b/recipes-kernel/hdm-dim2/files/dim2_sysfs.c
deleted file mode 100644
index c5b10c7d2..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_sysfs.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * dim2_sysfs.c - MediaLB sysfs information
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include "dim2_sysfs.h"
-
-struct bus_attr {
-	struct attribute attr;
-	ssize_t (*show)(struct medialb_bus *bus, char *buf);
-	ssize_t (*store)(struct medialb_bus *bus, const char *buf,
-			 size_t count);
-};
-
-static ssize_t state_show(struct medialb_bus *bus, char *buf)
-{
-	bool state = dim2_sysfs_get_state_cb();
-
-	return sprintf(buf, "%s\n", state ? "locked" : "");
-}
-
-static struct bus_attr state_attr = __ATTR_RO(state);
-
-static struct attribute *bus_default_attrs[] = {
-	&state_attr.attr,
-	NULL,
-};
-
-static struct attribute_group bus_attr_group = {
-	.attrs = bus_default_attrs,
-};
-
-static void bus_kobj_release(struct kobject *kobj)
-{
-}
-
-static ssize_t bus_kobj_attr_show(struct kobject *kobj, struct attribute *attr,
-				  char *buf)
-{
-	struct medialb_bus *bus =
-		container_of(kobj, struct medialb_bus, kobj_group);
-	struct bus_attr *xattr = container_of(attr, struct bus_attr, attr);
-
-	if (!xattr->show)
-		return -EIO;
-
-	return xattr->show(bus, buf);
-}
-
-static ssize_t bus_kobj_attr_store(struct kobject *kobj, struct attribute *attr,
-				   const char *buf, size_t count)
-{
-	ssize_t ret;
-	struct medialb_bus *bus =
-		container_of(kobj, struct medialb_bus, kobj_group);
-	struct bus_attr *xattr = container_of(attr, struct bus_attr, attr);
-
-	if (!xattr->store)
-		return -EIO;
-
-	ret = xattr->store(bus, buf, count);
-	return ret;
-}
-
-static struct sysfs_ops const bus_kobj_sysfs_ops = {
-	.show = bus_kobj_attr_show,
-	.store = bus_kobj_attr_store,
-};
-
-static struct kobj_type bus_ktype = {
-	.release = bus_kobj_release,
-	.sysfs_ops = &bus_kobj_sysfs_ops,
-};
-
-int dim2_sysfs_probe(struct medialb_bus *bus, struct kobject *parent_kobj)
-{
-	int err;
-
-	kobject_init(&bus->kobj_group, &bus_ktype);
-	err = kobject_add(&bus->kobj_group, parent_kobj, "bus");
-	if (err) {
-		pr_err("kobject_add() failed: %d\n", err);
-		goto err_kobject_add;
-	}
-
-	err = sysfs_create_group(&bus->kobj_group, &bus_attr_group);
-	if (err) {
-		pr_err("sysfs_create_group() failed: %d\n", err);
-		goto err_create_group;
-	}
-
-	return 0;
-
-err_create_group:
-	kobject_put(&bus->kobj_group);
-
-err_kobject_add:
-	return err;
-}
-
-void dim2_sysfs_destroy(struct medialb_bus *bus)
-{
-	kobject_put(&bus->kobj_group);
-}
diff --git a/recipes-kernel/hdm-dim2/files/dim2_sysfs.h b/recipes-kernel/hdm-dim2/files/dim2_sysfs.h
deleted file mode 100644
index b71dd027e..000000000
--- a/recipes-kernel/hdm-dim2/files/dim2_sysfs.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * dim2_sysfs.h - MediaLB sysfs information
- *
- * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * This file is licensed under GPLv2.
- */
-
-/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */
-
-#ifndef DIM2_SYSFS_H
-#define	DIM2_SYSFS_H
-
-#include <linux/kobject.h>
-
-struct medialb_bus {
-	struct kobject kobj_group;
-};
-
-struct dim2_hdm;
-
-int dim2_sysfs_probe(struct medialb_bus *bus, struct kobject *parent_kobj);
-void dim2_sysfs_destroy(struct medialb_bus *bus);
-
-/*
- * callback,
- * must deliver MediaLB state as true if locked or false if unlocked
- */
-bool dim2_sysfs_get_state_cb(void);
-
-#endif	/* DIM2_SYSFS_H */