dma: iop-adma: allow building without platform headers

Now that iop3xx and iop13xx are gone, the iop-adma driver no
longer needs to deal with incompatible register layout defined
in machine specific header files.

Move the iop32x specific definitions into drivers/dma/iop-adma.h
and the platform_data into include/linux/platform_data/dma-iop32x.h,
and change the machine code to no longer reference those.

The DMA0_ID/DMA1_ID/AAU_ID macros are required as part of the
platform data interface and still need to be visible, so move
those from one header to the other.

Link: https://lore.kernel.org/r/20190809163334.489360-4-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

4 files changed, 1 insertions, 1033 deletions

diff --git a/arch/arm/include/asm/hardware/iop3xx-adma.h b/arch/arm/include/asm/hardware/iop3xx-adma.h
deleted file mode 100644
index 6d998df17efd..000000000000
--- a/arch/arm/include/asm/hardware/iop3xx-adma.h
+++ /dev/null
@@ -1,919 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright © 2006, Intel Corporation.
- */
-#ifndef _ADMA_H
-#define _ADMA_H
-#include <linux/types.h>
-#include <linux/io.h>
-#include <mach/hardware.h>
-#include <asm/hardware/iop_adma.h>
-
-/* Memory copy units */
-#define DMA_CCR(chan)		(chan->mmr_base + 0x0)
-#define DMA_CSR(chan)		(chan->mmr_base + 0x4)
-#define DMA_DAR(chan)		(chan->mmr_base + 0xc)
-#define DMA_NDAR(chan)		(chan->mmr_base + 0x10)
-#define DMA_PADR(chan)		(chan->mmr_base + 0x14)
-#define DMA_PUADR(chan)	(chan->mmr_base + 0x18)
-#define DMA_LADR(chan)		(chan->mmr_base + 0x1c)
-#define DMA_BCR(chan)		(chan->mmr_base + 0x20)
-#define DMA_DCR(chan)		(chan->mmr_base + 0x24)
-
-/* Application accelerator unit  */
-#define AAU_ACR(chan)		(chan->mmr_base + 0x0)
-#define AAU_ASR(chan)		(chan->mmr_base + 0x4)
-#define AAU_ADAR(chan)		(chan->mmr_base + 0x8)
-#define AAU_ANDAR(chan)	(chan->mmr_base + 0xc)
-#define AAU_SAR(src, chan)	(chan->mmr_base + (0x10 + ((src) << 2)))
-#define AAU_DAR(chan)		(chan->mmr_base + 0x20)
-#define AAU_ABCR(chan)		(chan->mmr_base + 0x24)
-#define AAU_ADCR(chan)		(chan->mmr_base + 0x28)
-#define AAU_SAR_EDCR(src_edc)	(chan->mmr_base + (0x02c + ((src_edc-4) << 2)))
-#define AAU_EDCR0_IDX	8
-#define AAU_EDCR1_IDX	17
-#define AAU_EDCR2_IDX	26
-
-#define DMA0_ID 0
-#define DMA1_ID 1
-#define AAU_ID 2
-
-struct iop3xx_aau_desc_ctrl {
-	unsigned int int_en:1;
-	unsigned int blk1_cmd_ctrl:3;
-	unsigned int blk2_cmd_ctrl:3;
-	unsigned int blk3_cmd_ctrl:3;
-	unsigned int blk4_cmd_ctrl:3;
-	unsigned int blk5_cmd_ctrl:3;
-	unsigned int blk6_cmd_ctrl:3;
-	unsigned int blk7_cmd_ctrl:3;
-	unsigned int blk8_cmd_ctrl:3;
-	unsigned int blk_ctrl:2;
-	unsigned int dual_xor_en:1;
-	unsigned int tx_complete:1;
-	unsigned int zero_result_err:1;
-	unsigned int zero_result_en:1;
-	unsigned int dest_write_en:1;
-};
-
-struct iop3xx_aau_e_desc_ctrl {
-	unsigned int reserved:1;
-	unsigned int blk1_cmd_ctrl:3;
-	unsigned int blk2_cmd_ctrl:3;
-	unsigned int blk3_cmd_ctrl:3;
-	unsigned int blk4_cmd_ctrl:3;
-	unsigned int blk5_cmd_ctrl:3;
-	unsigned int blk6_cmd_ctrl:3;
-	unsigned int blk7_cmd_ctrl:3;
-	unsigned int blk8_cmd_ctrl:3;
-	unsigned int reserved2:7;
-};
-
-struct iop3xx_dma_desc_ctrl {
-	unsigned int pci_transaction:4;
-	unsigned int int_en:1;
-	unsigned int dac_cycle_en:1;
-	unsigned int mem_to_mem_en:1;
-	unsigned int crc_data_tx_en:1;
-	unsigned int crc_gen_en:1;
-	unsigned int crc_seed_dis:1;
-	unsigned int reserved:21;
-	unsigned int crc_tx_complete:1;
-};
-
-struct iop3xx_desc_dma {
-	u32 next_desc;
-	union {
-		u32 pci_src_addr;
-		u32 pci_dest_addr;
-		u32 src_addr;
-	};
-	union {
-		u32 upper_pci_src_addr;
-		u32 upper_pci_dest_addr;
-	};
-	union {
-		u32 local_pci_src_addr;
-		u32 local_pci_dest_addr;
-		u32 dest_addr;
-	};
-	u32 byte_count;
-	union {
-		u32 desc_ctrl;
-		struct iop3xx_dma_desc_ctrl desc_ctrl_field;
-	};
-	u32 crc_addr;
-};
-
-struct iop3xx_desc_aau {
-	u32 next_desc;
-	u32 src[4];
-	u32 dest_addr;
-	u32 byte_count;
-	union {
-		u32 desc_ctrl;
-		struct iop3xx_aau_desc_ctrl desc_ctrl_field;
-	};
-	union {
-		u32 src_addr;
-		u32 e_desc_ctrl;
-		struct iop3xx_aau_e_desc_ctrl e_desc_ctrl_field;
-	} src_edc[31];
-};
-
-struct iop3xx_aau_gfmr {
-	unsigned int gfmr1:8;
-	unsigned int gfmr2:8;
-	unsigned int gfmr3:8;
-	unsigned int gfmr4:8;
-};
-
-struct iop3xx_desc_pq_xor {
-	u32 next_desc;
-	u32 src[3];
-	union {
-		u32 data_mult1;
-		struct iop3xx_aau_gfmr data_mult1_field;
-	};
-	u32 dest_addr;
-	u32 byte_count;
-	union {
-		u32 desc_ctrl;
-		struct iop3xx_aau_desc_ctrl desc_ctrl_field;
-	};
-	union {
-		u32 src_addr;
-		u32 e_desc_ctrl;
-		struct iop3xx_aau_e_desc_ctrl e_desc_ctrl_field;
-		u32 data_multiplier;
-		struct iop3xx_aau_gfmr data_mult_field;
-		u32 reserved;
-	} src_edc_gfmr[19];
-};
-
-struct iop3xx_desc_dual_xor {
-	u32 next_desc;
-	u32 src0_addr;
-	u32 src1_addr;
-	u32 h_src_addr;
-	u32 d_src_addr;
-	u32 h_dest_addr;
-	u32 byte_count;
-	union {
-		u32 desc_ctrl;
-		struct iop3xx_aau_desc_ctrl desc_ctrl_field;
-	};
-	u32 d_dest_addr;
-};
-
-union iop3xx_desc {
-	struct iop3xx_desc_aau *aau;
-	struct iop3xx_desc_dma *dma;
-	struct iop3xx_desc_pq_xor *pq_xor;
-	struct iop3xx_desc_dual_xor *dual_xor;
-	void *ptr;
-};
-
-/* No support for p+q operations */
-static inline int
-iop_chan_pq_slot_count(size_t len, int src_cnt, int *slots_per_op)
-{
-	BUG();
-	return 0;
-}
-
-static inline void
-iop_desc_init_pq(struct iop_adma_desc_slot *desc, int src_cnt,
-		  unsigned long flags)
-{
-	BUG();
-}
-
-static inline void
-iop_desc_set_pq_addr(struct iop_adma_desc_slot *desc, dma_addr_t *addr)
-{
-	BUG();
-}
-
-static inline void
-iop_desc_set_pq_src_addr(struct iop_adma_desc_slot *desc, int src_idx,
-			 dma_addr_t addr, unsigned char coef)
-{
-	BUG();
-}
-
-static inline int
-iop_chan_pq_zero_sum_slot_count(size_t len, int src_cnt, int *slots_per_op)
-{
-	BUG();
-	return 0;
-}
-
-static inline void
-iop_desc_init_pq_zero_sum(struct iop_adma_desc_slot *desc, int src_cnt,
-			  unsigned long flags)
-{
-	BUG();
-}
-
-static inline void
-iop_desc_set_pq_zero_sum_byte_count(struct iop_adma_desc_slot *desc, u32 len)
-{
-	BUG();
-}
-
-#define iop_desc_set_pq_zero_sum_src_addr iop_desc_set_pq_src_addr
-
-static inline void
-iop_desc_set_pq_zero_sum_addr(struct iop_adma_desc_slot *desc, int pq_idx,
-			      dma_addr_t *src)
-{
-	BUG();
-}
-
-static inline int iop_adma_get_max_xor(void)
-{
-	return 32;
-}
-
-static inline int iop_adma_get_max_pq(void)
-{
-	BUG();
-	return 0;
-}
-
-static inline u32 iop_chan_get_current_descriptor(struct iop_adma_chan *chan)
-{
-	int id = chan->device->id;
-
-	switch (id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return __raw_readl(DMA_DAR(chan));
-	case AAU_ID:
-		return __raw_readl(AAU_ADAR(chan));
-	default:
-		BUG();
-	}
-	return 0;
-}
-
-static inline void iop_chan_set_next_descriptor(struct iop_adma_chan *chan,
-						u32 next_desc_addr)
-{
-	int id = chan->device->id;
-
-	switch (id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		__raw_writel(next_desc_addr, DMA_NDAR(chan));
-		break;
-	case AAU_ID:
-		__raw_writel(next_desc_addr, AAU_ANDAR(chan));
-		break;
-	}
-
-}
-
-#define IOP_ADMA_STATUS_BUSY (1 << 10)
-#define IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT (1024)
-#define IOP_ADMA_XOR_MAX_BYTE_COUNT (16 * 1024 * 1024)
-#define IOP_ADMA_MAX_BYTE_COUNT (16 * 1024 * 1024)
-
-static inline int iop_chan_is_busy(struct iop_adma_chan *chan)
-{
-	u32 status = __raw_readl(DMA_CSR(chan));
-	return (status & IOP_ADMA_STATUS_BUSY) ? 1 : 0;
-}
-
-static inline int iop_desc_is_aligned(struct iop_adma_desc_slot *desc,
-					int num_slots)
-{
-	/* num_slots will only ever be 1, 2, 4, or 8 */
-	return (desc->idx & (num_slots - 1)) ? 0 : 1;
-}
-
-/* to do: support large (i.e. > hw max) buffer sizes */
-static inline int iop_chan_memcpy_slot_count(size_t len, int *slots_per_op)
-{
-	*slots_per_op = 1;
-	return 1;
-}
-
-/* to do: support large (i.e. > hw max) buffer sizes */
-static inline int iop_chan_memset_slot_count(size_t len, int *slots_per_op)
-{
-	*slots_per_op = 1;
-	return 1;
-}
-
-static inline int iop3xx_aau_xor_slot_count(size_t len, int src_cnt,
-					int *slots_per_op)
-{
-	static const char slot_count_table[] = {
-						1, 1, 1, 1, /* 01 - 04 */
-						2, 2, 2, 2, /* 05 - 08 */
-						4, 4, 4, 4, /* 09 - 12 */
-						4, 4, 4, 4, /* 13 - 16 */
-						8, 8, 8, 8, /* 17 - 20 */
-						8, 8, 8, 8, /* 21 - 24 */
-						8, 8, 8, 8, /* 25 - 28 */
-						8, 8, 8, 8, /* 29 - 32 */
-					      };
-	*slots_per_op = slot_count_table[src_cnt - 1];
-	return *slots_per_op;
-}
-
-static inline int
-iop_chan_interrupt_slot_count(int *slots_per_op, struct iop_adma_chan *chan)
-{
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return iop_chan_memcpy_slot_count(0, slots_per_op);
-	case AAU_ID:
-		return iop3xx_aau_xor_slot_count(0, 2, slots_per_op);
-	default:
-		BUG();
-	}
-	return 0;
-}
-
-static inline int iop_chan_xor_slot_count(size_t len, int src_cnt,
-						int *slots_per_op)
-{
-	int slot_cnt = iop3xx_aau_xor_slot_count(len, src_cnt, slots_per_op);
-
-	if (len <= IOP_ADMA_XOR_MAX_BYTE_COUNT)
-		return slot_cnt;
-
-	len -= IOP_ADMA_XOR_MAX_BYTE_COUNT;
-	while (len > IOP_ADMA_XOR_MAX_BYTE_COUNT) {
-		len -= IOP_ADMA_XOR_MAX_BYTE_COUNT;
-		slot_cnt += *slots_per_op;
-	}
-
-	slot_cnt += *slots_per_op;
-
-	return slot_cnt;
-}
-
-/* zero sum on iop3xx is limited to 1k at a time so it requires multiple
- * descriptors
- */
-static inline int iop_chan_zero_sum_slot_count(size_t len, int src_cnt,
-						int *slots_per_op)
-{
-	int slot_cnt = iop3xx_aau_xor_slot_count(len, src_cnt, slots_per_op);
-
-	if (len <= IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT)
-		return slot_cnt;
-
-	len -= IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT;
-	while (len > IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT) {
-		len -= IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT;
-		slot_cnt += *slots_per_op;
-	}
-
-	slot_cnt += *slots_per_op;
-
-	return slot_cnt;
-}
-
-static inline u32 iop_desc_get_byte_count(struct iop_adma_desc_slot *desc,
-					struct iop_adma_chan *chan)
-{
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return hw_desc.dma->byte_count;
-	case AAU_ID:
-		return hw_desc.aau->byte_count;
-	default:
-		BUG();
-	}
-	return 0;
-}
-
-/* translate the src_idx to a descriptor word index */
-static inline int __desc_idx(int src_idx)
-{
-	static const int desc_idx_table[] = { 0, 0, 0, 0,
-					      0, 1, 2, 3,
-					      5, 6, 7, 8,
-					      9, 10, 11, 12,
-					      14, 15, 16, 17,
-					      18, 19, 20, 21,
-					      23, 24, 25, 26,
-					      27, 28, 29, 30,
-					    };
-
-	return desc_idx_table[src_idx];
-}
-
-static inline u32 iop_desc_get_src_addr(struct iop_adma_desc_slot *desc,
-					struct iop_adma_chan *chan,
-					int src_idx)
-{
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return hw_desc.dma->src_addr;
-	case AAU_ID:
-		break;
-	default:
-		BUG();
-	}
-
-	if (src_idx < 4)
-		return hw_desc.aau->src[src_idx];
-	else
-		return hw_desc.aau->src_edc[__desc_idx(src_idx)].src_addr;
-}
-
-static inline void iop3xx_aau_desc_set_src_addr(struct iop3xx_desc_aau *hw_desc,
-					int src_idx, dma_addr_t addr)
-{
-	if (src_idx < 4)
-		hw_desc->src[src_idx] = addr;
-	else
-		hw_desc->src_edc[__desc_idx(src_idx)].src_addr = addr;
-}
-
-static inline void
-iop_desc_init_memcpy(struct iop_adma_desc_slot *desc, unsigned long flags)
-{
-	struct iop3xx_desc_dma *hw_desc = desc->hw_desc;
-	union {
-		u32 value;
-		struct iop3xx_dma_desc_ctrl field;
-	} u_desc_ctrl;
-
-	u_desc_ctrl.value = 0;
-	u_desc_ctrl.field.mem_to_mem_en = 1;
-	u_desc_ctrl.field.pci_transaction = 0xe; /* memory read block */
-	u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT;
-	hw_desc->desc_ctrl = u_desc_ctrl.value;
-	hw_desc->upper_pci_src_addr = 0;
-	hw_desc->crc_addr = 0;
-}
-
-static inline void
-iop_desc_init_memset(struct iop_adma_desc_slot *desc, unsigned long flags)
-{
-	struct iop3xx_desc_aau *hw_desc = desc->hw_desc;
-	union {
-		u32 value;
-		struct iop3xx_aau_desc_ctrl field;
-	} u_desc_ctrl;
-
-	u_desc_ctrl.value = 0;
-	u_desc_ctrl.field.blk1_cmd_ctrl = 0x2; /* memory block fill */
-	u_desc_ctrl.field.dest_write_en = 1;
-	u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT;
-	hw_desc->desc_ctrl = u_desc_ctrl.value;
-}
-
-static inline u32
-iop3xx_desc_init_xor(struct iop3xx_desc_aau *hw_desc, int src_cnt,
-		     unsigned long flags)
-{
-	int i, shift;
-	u32 edcr;
-	union {
-		u32 value;
-		struct iop3xx_aau_desc_ctrl field;
-	} u_desc_ctrl;
-
-	u_desc_ctrl.value = 0;
-	switch (src_cnt) {
-	case 25 ... 32:
-		u_desc_ctrl.field.blk_ctrl = 0x3; /* use EDCR[2:0] */
-		edcr = 0;
-		shift = 1;
-		for (i = 24; i < src_cnt; i++) {
-			edcr |= (1 << shift);
-			shift += 3;
-		}
-		hw_desc->src_edc[AAU_EDCR2_IDX].e_desc_ctrl = edcr;
-		src_cnt = 24;
-		/* fall through */
-	case 17 ... 24:
-		if (!u_desc_ctrl.field.blk_ctrl) {
-			hw_desc->src_edc[AAU_EDCR2_IDX].e_desc_ctrl = 0;
-			u_desc_ctrl.field.blk_ctrl = 0x3; /* use EDCR[2:0] */
-		}
-		edcr = 0;
-		shift = 1;
-		for (i = 16; i < src_cnt; i++) {
-			edcr |= (1 << shift);
-			shift += 3;
-		}
-		hw_desc->src_edc[AAU_EDCR1_IDX].e_desc_ctrl = edcr;
-		src_cnt = 16;
-		/* fall through */
-	case 9 ... 16:
-		if (!u_desc_ctrl.field.blk_ctrl)
-			u_desc_ctrl.field.blk_ctrl = 0x2; /* use EDCR0 */
-		edcr = 0;
-		shift = 1;
-		for (i = 8; i < src_cnt; i++) {
-			edcr |= (1 << shift);
-			shift += 3;
-		}
-		hw_desc->src_edc[AAU_EDCR0_IDX].e_desc_ctrl = edcr;
-		src_cnt = 8;
-		/* fall through */
-	case 2 ... 8:
-		shift = 1;
-		for (i = 0; i < src_cnt; i++) {
-			u_desc_ctrl.value |= (1 << shift);
-			shift += 3;
-		}
-
-		if (!u_desc_ctrl.field.blk_ctrl && src_cnt > 4)
-			u_desc_ctrl.field.blk_ctrl = 0x1; /* use mini-desc */
-	}
-
-	u_desc_ctrl.field.dest_write_en = 1;
-	u_desc_ctrl.field.blk1_cmd_ctrl = 0x7; /* direct fill */
-	u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT;
-	hw_desc->desc_ctrl = u_desc_ctrl.value;
-
-	return u_desc_ctrl.value;
-}
-
-static inline void
-iop_desc_init_xor(struct iop_adma_desc_slot *desc, int src_cnt,
-		  unsigned long flags)
-{
-	iop3xx_desc_init_xor(desc->hw_desc, src_cnt, flags);
-}
-
-/* return the number of operations */
-static inline int
-iop_desc_init_zero_sum(struct iop_adma_desc_slot *desc, int src_cnt,
-		       unsigned long flags)
-{
-	int slot_cnt = desc->slot_cnt, slots_per_op = desc->slots_per_op;
-	struct iop3xx_desc_aau *hw_desc, *prev_hw_desc, *iter;
-	union {
-		u32 value;
-		struct iop3xx_aau_desc_ctrl field;
-	} u_desc_ctrl;
-	int i, j;
-
-	hw_desc = desc->hw_desc;
-
-	for (i = 0, j = 0; (slot_cnt -= slots_per_op) >= 0;
-		i += slots_per_op, j++) {
-		iter = iop_hw_desc_slot_idx(hw_desc, i);
-		u_desc_ctrl.value = iop3xx_desc_init_xor(iter, src_cnt, flags);
-		u_desc_ctrl.field.dest_write_en = 0;
-		u_desc_ctrl.field.zero_result_en = 1;
-		u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT;
-		iter->desc_ctrl = u_desc_ctrl.value;
-
-		/* for the subsequent descriptors preserve the store queue
-		 * and chain them together
-		 */
-		if (i) {
-			prev_hw_desc =
-				iop_hw_desc_slot_idx(hw_desc, i - slots_per_op);
-			prev_hw_desc->next_desc =
-				(u32) (desc->async_tx.phys + (i << 5));
-		}
-	}
-
-	return j;
-}
-
-static inline void
-iop_desc_init_null_xor(struct iop_adma_desc_slot *desc, int src_cnt,
-		       unsigned long flags)
-{
-	struct iop3xx_desc_aau *hw_desc = desc->hw_desc;
-	union {
-		u32 value;
-		struct iop3xx_aau_desc_ctrl field;
-	} u_desc_ctrl;
-
-	u_desc_ctrl.value = 0;
-	switch (src_cnt) {
-	case 25 ... 32:
-		u_desc_ctrl.field.blk_ctrl = 0x3; /* use EDCR[2:0] */
-		hw_desc->src_edc[AAU_EDCR2_IDX].e_desc_ctrl = 0;
-		/* fall through */
-	case 17 ... 24:
-		if (!u_desc_ctrl.field.blk_ctrl) {
-			hw_desc->src_edc[AAU_EDCR2_IDX].e_desc_ctrl = 0;
-			u_desc_ctrl.field.blk_ctrl = 0x3; /* use EDCR[2:0] */
-		}
-		hw_desc->src_edc[AAU_EDCR1_IDX].e_desc_ctrl = 0;
-		/* fall through */
-	case 9 ... 16:
-		if (!u_desc_ctrl.field.blk_ctrl)
-			u_desc_ctrl.field.blk_ctrl = 0x2; /* use EDCR0 */
-		hw_desc->src_edc[AAU_EDCR0_IDX].e_desc_ctrl = 0;
-		/* fall through */
-	case 1 ... 8:
-		if (!u_desc_ctrl.field.blk_ctrl && src_cnt > 4)
-			u_desc_ctrl.field.blk_ctrl = 0x1; /* use mini-desc */
-	}
-
-	u_desc_ctrl.field.dest_write_en = 0;
-	u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT;
-	hw_desc->desc_ctrl = u_desc_ctrl.value;
-}
-
-static inline void iop_desc_set_byte_count(struct iop_adma_desc_slot *desc,
-					struct iop_adma_chan *chan,
-					u32 byte_count)
-{
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		hw_desc.dma->byte_count = byte_count;
-		break;
-	case AAU_ID:
-		hw_desc.aau->byte_count = byte_count;
-		break;
-	default:
-		BUG();
-	}
-}
-
-static inline void
-iop_desc_init_interrupt(struct iop_adma_desc_slot *desc,
-			struct iop_adma_chan *chan)
-{
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		iop_desc_init_memcpy(desc, 1);
-		hw_desc.dma->byte_count = 0;
-		hw_desc.dma->dest_addr = 0;
-		hw_desc.dma->src_addr = 0;
-		break;
-	case AAU_ID:
-		iop_desc_init_null_xor(desc, 2, 1);
-		hw_desc.aau->byte_count = 0;
-		hw_desc.aau->dest_addr = 0;
-		hw_desc.aau->src[0] = 0;
-		hw_desc.aau->src[1] = 0;
-		break;
-	default:
-		BUG();
-	}
-}
-
-static inline void
-iop_desc_set_zero_sum_byte_count(struct iop_adma_desc_slot *desc, u32 len)
-{
-	int slots_per_op = desc->slots_per_op;
-	struct iop3xx_desc_aau *hw_desc = desc->hw_desc, *iter;
-	int i = 0;
-
-	if (len <= IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT) {
-		hw_desc->byte_count = len;
-	} else {
-		do {
-			iter = iop_hw_desc_slot_idx(hw_desc, i);
-			iter->byte_count = IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT;
-			len -= IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT;
-			i += slots_per_op;
-		} while (len > IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT);
-
-		iter = iop_hw_desc_slot_idx(hw_desc, i);
-		iter->byte_count = len;
-	}
-}
-
-static inline void iop_desc_set_dest_addr(struct iop_adma_desc_slot *desc,
-					struct iop_adma_chan *chan,
-					dma_addr_t addr)
-{
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		hw_desc.dma->dest_addr = addr;
-		break;
-	case AAU_ID:
-		hw_desc.aau->dest_addr = addr;
-		break;
-	default:
-		BUG();
-	}
-}
-
-static inline void iop_desc_set_memcpy_src_addr(struct iop_adma_desc_slot *desc,
-					dma_addr_t addr)
-{
-	struct iop3xx_desc_dma *hw_desc = desc->hw_desc;
-	hw_desc->src_addr = addr;
-}
-
-static inline void
-iop_desc_set_zero_sum_src_addr(struct iop_adma_desc_slot *desc, int src_idx,
-				dma_addr_t addr)
-{
-
-	struct iop3xx_desc_aau *hw_desc = desc->hw_desc, *iter;
-	int slot_cnt = desc->slot_cnt, slots_per_op = desc->slots_per_op;
-	int i;
-
-	for (i = 0; (slot_cnt -= slots_per_op) >= 0;
-		i += slots_per_op, addr += IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT) {
-		iter = iop_hw_desc_slot_idx(hw_desc, i);
-		iop3xx_aau_desc_set_src_addr(iter, src_idx, addr);
-	}
-}
-
-static inline void iop_desc_set_xor_src_addr(struct iop_adma_desc_slot *desc,
-					int src_idx, dma_addr_t addr)
-{
-
-	struct iop3xx_desc_aau *hw_desc = desc->hw_desc, *iter;
-	int slot_cnt = desc->slot_cnt, slots_per_op = desc->slots_per_op;
-	int i;
-
-	for (i = 0; (slot_cnt -= slots_per_op) >= 0;
-		i += slots_per_op, addr += IOP_ADMA_XOR_MAX_BYTE_COUNT) {
-		iter = iop_hw_desc_slot_idx(hw_desc, i);
-		iop3xx_aau_desc_set_src_addr(iter, src_idx, addr);
-	}
-}
-
-static inline void iop_desc_set_next_desc(struct iop_adma_desc_slot *desc,
-					u32 next_desc_addr)
-{
-	/* hw_desc->next_desc is the same location for all channels */
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-
-	iop_paranoia(hw_desc.dma->next_desc);
-	hw_desc.dma->next_desc = next_desc_addr;
-}
-
-static inline u32 iop_desc_get_next_desc(struct iop_adma_desc_slot *desc)
-{
-	/* hw_desc->next_desc is the same location for all channels */
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-	return hw_desc.dma->next_desc;
-}
-
-static inline void iop_desc_clear_next_desc(struct iop_adma_desc_slot *desc)
-{
-	/* hw_desc->next_desc is the same location for all channels */
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-	hw_desc.dma->next_desc = 0;
-}
-
-static inline void iop_desc_set_block_fill_val(struct iop_adma_desc_slot *desc,
-						u32 val)
-{
-	struct iop3xx_desc_aau *hw_desc = desc->hw_desc;
-	hw_desc->src[0] = val;
-}
-
-static inline enum sum_check_flags
-iop_desc_get_zero_result(struct iop_adma_desc_slot *desc)
-{
-	struct iop3xx_desc_aau *hw_desc = desc->hw_desc;
-	struct iop3xx_aau_desc_ctrl desc_ctrl = hw_desc->desc_ctrl_field;
-
-	iop_paranoia(!(desc_ctrl.tx_complete && desc_ctrl.zero_result_en));
-	return desc_ctrl.zero_result_err << SUM_CHECK_P;
-}
-
-static inline void iop_chan_append(struct iop_adma_chan *chan)
-{
-	u32 dma_chan_ctrl;
-
-	dma_chan_ctrl = __raw_readl(DMA_CCR(chan));
-	dma_chan_ctrl |= 0x2;
-	__raw_writel(dma_chan_ctrl, DMA_CCR(chan));
-}
-
-static inline u32 iop_chan_get_status(struct iop_adma_chan *chan)
-{
-	return __raw_readl(DMA_CSR(chan));
-}
-
-static inline void iop_chan_disable(struct iop_adma_chan *chan)
-{
-	u32 dma_chan_ctrl = __raw_readl(DMA_CCR(chan));
-	dma_chan_ctrl &= ~1;
-	__raw_writel(dma_chan_ctrl, DMA_CCR(chan));
-}
-
-static inline void iop_chan_enable(struct iop_adma_chan *chan)
-{
-	u32 dma_chan_ctrl = __raw_readl(DMA_CCR(chan));
-
-	dma_chan_ctrl |= 1;
-	__raw_writel(dma_chan_ctrl, DMA_CCR(chan));
-}
-
-static inline void iop_adma_device_clear_eot_status(struct iop_adma_chan *chan)
-{
-	u32 status = __raw_readl(DMA_CSR(chan));
-	status &= (1 << 9);
-	__raw_writel(status, DMA_CSR(chan));
-}
-
-static inline void iop_adma_device_clear_eoc_status(struct iop_adma_chan *chan)
-{
-	u32 status = __raw_readl(DMA_CSR(chan));
-	status &= (1 << 8);
-	__raw_writel(status, DMA_CSR(chan));
-}
-
-static inline void iop_adma_device_clear_err_status(struct iop_adma_chan *chan)
-{
-	u32 status = __raw_readl(DMA_CSR(chan));
-
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		status &= (1 << 5) | (1 << 3) | (1 << 2) | (1 << 1);
-		break;
-	case AAU_ID:
-		status &= (1 << 5);
-		break;
-	default:
-		BUG();
-	}
-
-	__raw_writel(status, DMA_CSR(chan));
-}
-
-static inline int
-iop_is_err_int_parity(unsigned long status, struct iop_adma_chan *chan)
-{
-	return 0;
-}
-
-static inline int
-iop_is_err_mcu_abort(unsigned long status, struct iop_adma_chan *chan)
-{
-	return 0;
-}
-
-static inline int
-iop_is_err_int_tabort(unsigned long status, struct iop_adma_chan *chan)
-{
-	return 0;
-}
-
-static inline int
-iop_is_err_int_mabort(unsigned long status, struct iop_adma_chan *chan)
-{
-	return test_bit(5, &status);
-}
-
-static inline int
-iop_is_err_pci_tabort(unsigned long status, struct iop_adma_chan *chan)
-{
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return test_bit(2, &status);
-	default:
-		return 0;
-	}
-}
-
-static inline int
-iop_is_err_pci_mabort(unsigned long status, struct iop_adma_chan *chan)
-{
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return test_bit(3, &status);
-	default:
-		return 0;
-	}
-}
-
-static inline int
-iop_is_err_split_tx(unsigned long status, struct iop_adma_chan *chan)
-{
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return test_bit(1, &status);
-	default:
-		return 0;
-	}
-}
-#endif /* _ADMA_H */
diff --git a/arch/arm/include/asm/hardware/iop_adma.h b/arch/arm/include/asm/hardware/iop_adma.h
deleted file mode 100644
index bcedbab90ac0..000000000000
--- a/arch/arm/include/asm/hardware/iop_adma.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright © 2006, Intel Corporation.
- */
-#ifndef IOP_ADMA_H
-#define IOP_ADMA_H
-#include <linux/types.h>
-#include <linux/dmaengine.h>
-#include <linux/interrupt.h>
-
-#define IOP_ADMA_SLOT_SIZE 32
-#define IOP_ADMA_THRESHOLD 4
-#ifdef DEBUG
-#define IOP_PARANOIA 1
-#else
-#define IOP_PARANOIA 0
-#endif
-#define iop_paranoia(x) BUG_ON(IOP_PARANOIA && (x))
-
-/**
- * struct iop_adma_device - internal representation of an ADMA device
- * @pdev: Platform device
- * @id: HW ADMA Device selector
- * @dma_desc_pool: base of DMA descriptor region (DMA address)
- * @dma_desc_pool_virt: base of DMA descriptor region (CPU address)
- * @common: embedded struct dma_device
- */
-struct iop_adma_device {
-	struct platform_device *pdev;
-	int id;
-	dma_addr_t dma_desc_pool;
-	void *dma_desc_pool_virt;
-	struct dma_device common;
-};
-
-/**
- * struct iop_adma_chan - internal representation of an ADMA device
- * @pending: allows batching of hardware operations
- * @lock: serializes enqueue/dequeue operations to the slot pool
- * @mmr_base: memory mapped register base
- * @chain: device chain view of the descriptors
- * @device: parent device
- * @common: common dmaengine channel object members
- * @last_used: place holder for allocation to continue from where it left off
- * @all_slots: complete domain of slots usable by the channel
- * @slots_allocated: records the actual size of the descriptor slot pool
- * @irq_tasklet: bottom half where iop_adma_slot_cleanup runs
- */
-struct iop_adma_chan {
-	int pending;
-	spinlock_t lock; /* protects the descriptor slot pool */
-	void __iomem *mmr_base;
-	struct list_head chain;
-	struct iop_adma_device *device;
-	struct dma_chan common;
-	struct iop_adma_desc_slot *last_used;
-	struct list_head all_slots;
-	int slots_allocated;
-	struct tasklet_struct irq_tasklet;
-};
-
-/**
- * struct iop_adma_desc_slot - IOP-ADMA software descriptor
- * @slot_node: node on the iop_adma_chan.all_slots list
- * @chain_node: node on the op_adma_chan.chain list
- * @hw_desc: virtual address of the hardware descriptor chain
- * @phys: hardware address of the hardware descriptor chain
- * @group_head: first operation in a transaction
- * @slot_cnt: total slots used in an transaction (group of operations)
- * @slots_per_op: number of slots per operation
- * @idx: pool index
- * @tx_list: list of descriptors that are associated with one operation
- * @async_tx: support for the async_tx api
- * @group_list: list of slots that make up a multi-descriptor transaction
- *	for example transfer lengths larger than the supported hw max
- * @xor_check_result: result of zero sum
- * @crc32_result: result crc calculation
- */
-struct iop_adma_desc_slot {
-	struct list_head slot_node;
-	struct list_head chain_node;
-	void *hw_desc;
-	struct iop_adma_desc_slot *group_head;
-	u16 slot_cnt;
-	u16 slots_per_op;
-	u16 idx;
-	struct list_head tx_list;
-	struct dma_async_tx_descriptor async_tx;
-	union {
-		u32 *xor_check_result;
-		u32 *crc32_result;
-		u32 *pq_check_result;
-	};
-};
-
-struct iop_adma_platform_data {
-	int hw_id;
-	dma_cap_mask_t cap_mask;
-	size_t pool_size;
-};
-
-#define to_iop_sw_desc(addr_hw_desc) \
-	container_of(addr_hw_desc, struct iop_adma_desc_slot, hw_desc)
-#define iop_hw_desc_slot_idx(hw_desc, idx) \
-	( (void *) (((unsigned long) hw_desc) + ((idx) << 5)) )
-#endif
diff --git a/arch/arm/mach-iop32x/include/mach/adma.h b/arch/arm/mach-iop32x/include/mach/adma.h
deleted file mode 100644
index 2b20063123ad..000000000000
--- a/arch/arm/mach-iop32x/include/mach/adma.h
+++ /dev/null
@@ -1,6 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef IOP32X_ADMA_H
-#define IOP32X_ADMA_H
-#include <asm/hardware/iop3xx-adma.h>
-#endif
-
diff --git a/arch/arm/plat-iop/adma.c b/arch/arm/plat-iop/adma.c
index 368496471e60..601cc9c11b07 100644
--- a/arch/arm/plat-iop/adma.c
+++ b/arch/arm/plat-iop/adma.c
@@ -6,8 +6,7 @@
 #include <linux/platform_device.h>
 #include <asm/hardware/iop3xx.h>
 #include <linux/dma-mapping.h>
-#include <mach/adma.h>
-#include <asm/hardware/iop_adma.h>
+#include <linux/platform_data/dma-iop32x.h>
 
 #define IRQ_DMA0_EOT IRQ_IOP32X_DMA0_EOT
 #define IRQ_DMA0_EOC IRQ_IOP32X_DMA0_EOC