diff options
Diffstat (limited to 'include/asm-arm/arch-iop13xx/adma.h')
| -rw-r--r-- | include/asm-arm/arch-iop13xx/adma.h | 537 |
1 files changed, 0 insertions, 537 deletions
diff --git a/include/asm-arm/arch-iop13xx/adma.h b/include/asm-arm/arch-iop13xx/adma.h deleted file mode 100644 index ef4f5da..0000000 --- a/include/asm-arm/arch-iop13xx/adma.h +++ /dev/null @@ -1,537 +0,0 @@ -/* - * Copyright(c) 2006, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * - */ -#ifndef _ADMA_H -#define _ADMA_H -#include <linux/types.h> -#include <linux/io.h> -#include <asm/hardware.h> -#include <asm/hardware/iop_adma.h> - -#define ADMA_ACCR(chan) (chan->mmr_base + 0x0) -#define ADMA_ACSR(chan) (chan->mmr_base + 0x4) -#define ADMA_ADAR(chan) (chan->mmr_base + 0x8) -#define ADMA_IIPCR(chan) (chan->mmr_base + 0x18) -#define ADMA_IIPAR(chan) (chan->mmr_base + 0x1c) -#define ADMA_IIPUAR(chan) (chan->mmr_base + 0x20) -#define ADMA_ANDAR(chan) (chan->mmr_base + 0x24) -#define ADMA_ADCR(chan) (chan->mmr_base + 0x28) -#define ADMA_CARMD(chan) (chan->mmr_base + 0x2c) -#define ADMA_ABCR(chan) (chan->mmr_base + 0x30) -#define ADMA_DLADR(chan) (chan->mmr_base + 0x34) -#define ADMA_DUADR(chan) (chan->mmr_base + 0x38) -#define ADMA_SLAR(src, chan) (chan->mmr_base + (0x3c + (src << 3))) -#define ADMA_SUAR(src, chan) (chan->mmr_base + (0x40 + (src << 3))) - -struct iop13xx_adma_src { - u32 src_addr; - union { - u32 upper_src_addr; - struct { - unsigned int pq_upper_src_addr:24; - unsigned int pq_dmlt:8; - }; - }; -}; - -struct iop13xx_adma_desc_ctrl { - unsigned int int_en:1; - unsigned int xfer_dir:2; - unsigned int src_select:4; - unsigned int zero_result:1; - unsigned int block_fill_en:1; - unsigned int crc_gen_en:1; - unsigned int crc_xfer_dis:1; - unsigned int crc_seed_fetch_dis:1; - unsigned int status_write_back_en:1; - unsigned int endian_swap_en:1; - unsigned int reserved0:2; - unsigned int pq_update_xfer_en:1; - unsigned int dual_xor_en:1; - unsigned int pq_xfer_en:1; - unsigned int p_xfer_dis:1; - unsigned int reserved1:10; - unsigned int relax_order_en:1; - unsigned int no_snoop_en:1; -}; - -struct iop13xx_adma_byte_count { - unsigned int byte_count:24; - unsigned int host_if:3; - unsigned int reserved:2; - unsigned int zero_result_err_q:1; - unsigned int zero_result_err:1; - unsigned int tx_complete:1; -}; - -struct iop13xx_adma_desc_hw { - u32 next_desc; - union { - u32 desc_ctrl; - struct iop13xx_adma_desc_ctrl desc_ctrl_field; - }; - union { - u32 crc_addr; - u32 block_fill_data; - u32 q_dest_addr; - }; - union { - u32 byte_count; - struct iop13xx_adma_byte_count byte_count_field; - }; - union { - u32 dest_addr; - u32 p_dest_addr; - }; - union { - u32 upper_dest_addr; - u32 pq_upper_dest_addr; - }; - struct iop13xx_adma_src src[1]; -}; - -struct iop13xx_adma_desc_dual_xor { - u32 next_desc; - u32 desc_ctrl; - u32 reserved; - u32 byte_count; - u32 h_dest_addr; - u32 h_upper_dest_addr; - u32 src0_addr; - u32 upper_src0_addr; - u32 src1_addr; - u32 upper_src1_addr; - u32 h_src_addr; - u32 h_upper_src_addr; - u32 d_src_addr; - u32 d_upper_src_addr; - u32 d_dest_addr; - u32 d_upper_dest_addr; -}; - -struct iop13xx_adma_desc_pq_update { - u32 next_desc; - u32 desc_ctrl; - u32 reserved; - u32 byte_count; - u32 p_dest_addr; - u32 p_upper_dest_addr; - u32 src0_addr; - u32 upper_src0_addr; - u32 src1_addr; - u32 upper_src1_addr; - u32 p_src_addr; - u32 p_upper_src_addr; - u32 q_src_addr; - struct { - unsigned int q_upper_src_addr:24; - unsigned int q_dmlt:8; - }; - u32 q_dest_addr; - u32 q_upper_dest_addr; -}; - -static inline int iop_adma_get_max_xor(void) -{ - return 16; -} - -static inline u32 iop_chan_get_current_descriptor(struct iop_adma_chan *chan) -{ - return __raw_readl(ADMA_ADAR(chan)); -} - -static inline void iop_chan_set_next_descriptor(struct iop_adma_chan *chan, - u32 next_desc_addr) -{ - __raw_writel(next_desc_addr, ADMA_ANDAR(chan)); -} - -#define ADMA_STATUS_BUSY (1 << 13) - -static inline char iop_chan_is_busy(struct iop_adma_chan *chan) -{ - if (__raw_readl(ADMA_ACSR(chan)) & - ADMA_STATUS_BUSY) - return 1; - else - return 0; -} - -static inline int -iop_chan_get_desc_align(struct iop_adma_chan *chan, int num_slots) -{ - return 1; -} -#define iop_desc_is_aligned(x, y) 1 - -static inline int -iop_chan_memcpy_slot_count(size_t len, int *slots_per_op) -{ - *slots_per_op = 1; - return 1; -} - -#define iop_chan_interrupt_slot_count(s, c) iop_chan_memcpy_slot_count(0, s) - -static inline int -iop_chan_memset_slot_count(size_t len, int *slots_per_op) -{ - *slots_per_op = 1; - return 1; -} - -static inline int -iop_chan_xor_slot_count(size_t len, int src_cnt, int *slots_per_op) -{ - static const char slot_count_table[] = { 1, 2, 2, 2, - 2, 3, 3, 3, - 3, 4, 4, 4, - 4, 5, 5, 5, - }; - *slots_per_op = slot_count_table[src_cnt - 1]; - return *slots_per_op; -} - -#define ADMA_MAX_BYTE_COUNT (16 * 1024 * 1024) -#define IOP_ADMA_MAX_BYTE_COUNT ADMA_MAX_BYTE_COUNT -#define IOP_ADMA_ZERO_SUM_MAX_BYTE_COUNT ADMA_MAX_BYTE_COUNT -#define IOP_ADMA_XOR_MAX_BYTE_COUNT ADMA_MAX_BYTE_COUNT -#define iop_chan_zero_sum_slot_count(l, s, o) iop_chan_xor_slot_count(l, s, o) - -static inline u32 iop_desc_get_dest_addr(struct iop_adma_desc_slot *desc, - struct iop_adma_chan *chan) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - return hw_desc->dest_addr; -} - -static inline u32 iop_desc_get_byte_count(struct iop_adma_desc_slot *desc, - struct iop_adma_chan *chan) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - return hw_desc->byte_count_field.byte_count; -} - -static inline u32 iop_desc_get_src_addr(struct iop_adma_desc_slot *desc, - struct iop_adma_chan *chan, - int src_idx) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - return hw_desc->src[src_idx].src_addr; -} - -static inline u32 iop_desc_get_src_count(struct iop_adma_desc_slot *desc, - struct iop_adma_chan *chan) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - return hw_desc->desc_ctrl_field.src_select + 1; -} - -static inline void -iop_desc_init_memcpy(struct iop_adma_desc_slot *desc, unsigned long flags) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - union { - u32 value; - struct iop13xx_adma_desc_ctrl field; - } u_desc_ctrl; - - u_desc_ctrl.value = 0; - u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ - u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; - hw_desc->desc_ctrl = u_desc_ctrl.value; - hw_desc->crc_addr = 0; -} - -static inline void -iop_desc_init_memset(struct iop_adma_desc_slot *desc, unsigned long flags) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - union { - u32 value; - struct iop13xx_adma_desc_ctrl field; - } u_desc_ctrl; - - u_desc_ctrl.value = 0; - u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ - u_desc_ctrl.field.block_fill_en = 1; - u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; - hw_desc->desc_ctrl = u_desc_ctrl.value; - hw_desc->crc_addr = 0; -} - -/* to do: support buffers larger than ADMA_MAX_BYTE_COUNT */ -static inline void -iop_desc_init_xor(struct iop_adma_desc_slot *desc, int src_cnt, - unsigned long flags) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - union { - u32 value; - struct iop13xx_adma_desc_ctrl field; - } u_desc_ctrl; - - u_desc_ctrl.value = 0; - u_desc_ctrl.field.src_select = src_cnt - 1; - u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ - u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; - hw_desc->desc_ctrl = u_desc_ctrl.value; - hw_desc->crc_addr = 0; - -} -#define iop_desc_init_null_xor(d, s, i) iop_desc_init_xor(d, s, i) - -/* to do: support buffers larger than ADMA_MAX_BYTE_COUNT */ -static inline int -iop_desc_init_zero_sum(struct iop_adma_desc_slot *desc, int src_cnt, - unsigned long flags) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - union { - u32 value; - struct iop13xx_adma_desc_ctrl field; - } u_desc_ctrl; - - u_desc_ctrl.value = 0; - u_desc_ctrl.field.src_select = src_cnt - 1; - u_desc_ctrl.field.xfer_dir = 3; /* local to internal bus */ - u_desc_ctrl.field.zero_result = 1; - u_desc_ctrl.field.status_write_back_en = 1; - u_desc_ctrl.field.int_en = flags & DMA_PREP_INTERRUPT; - hw_desc->desc_ctrl = u_desc_ctrl.value; - hw_desc->crc_addr = 0; - - return 1; -} - -static inline void iop_desc_set_byte_count(struct iop_adma_desc_slot *desc, - struct iop_adma_chan *chan, - u32 byte_count) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - hw_desc->byte_count = byte_count; -} - -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 iop13xx_adma_desc_hw *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); - - if (len) { - 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) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - hw_desc->dest_addr = addr; - hw_desc->upper_dest_addr = 0; -} - -static inline void iop_desc_set_memcpy_src_addr(struct iop_adma_desc_slot *desc, - dma_addr_t addr) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - hw_desc->src[0].src_addr = addr; - hw_desc->src[0].upper_src_addr = 0; -} - -static inline void iop_desc_set_xor_src_addr(struct iop_adma_desc_slot *desc, - int src_idx, dma_addr_t addr) -{ - int slot_cnt = desc->slot_cnt, slots_per_op = desc->slots_per_op; - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc, *iter; - int i = 0; - - do { - iter = iop_hw_desc_slot_idx(hw_desc, i); - iter->src[src_idx].src_addr = addr; - iter->src[src_idx].upper_src_addr = 0; - slot_cnt -= slots_per_op; - if (slot_cnt) { - i += slots_per_op; - addr += IOP_ADMA_XOR_MAX_BYTE_COUNT; - } - } while (slot_cnt); -} - -static inline void -iop_desc_init_interrupt(struct iop_adma_desc_slot *desc, - struct iop_adma_chan *chan) -{ - iop_desc_init_memcpy(desc, 1); - iop_desc_set_byte_count(desc, chan, 0); - iop_desc_set_dest_addr(desc, chan, 0); - iop_desc_set_memcpy_src_addr(desc, 0); -} - -#define iop_desc_set_zero_sum_src_addr iop_desc_set_xor_src_addr - -static inline void iop_desc_set_next_desc(struct iop_adma_desc_slot *desc, - u32 next_desc_addr) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - BUG_ON(hw_desc->next_desc); - hw_desc->next_desc = next_desc_addr; -} - -static inline u32 iop_desc_get_next_desc(struct iop_adma_desc_slot *desc) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - return hw_desc->next_desc; -} - -static inline void iop_desc_clear_next_desc(struct iop_adma_desc_slot *desc) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - hw_desc->next_desc = 0; -} - -static inline void iop_desc_set_block_fill_val(struct iop_adma_desc_slot *desc, - u32 val) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - hw_desc->block_fill_data = val; -} - -static inline int iop_desc_get_zero_result(struct iop_adma_desc_slot *desc) -{ - struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc; - struct iop13xx_adma_desc_ctrl desc_ctrl = hw_desc->desc_ctrl_field; - struct iop13xx_adma_byte_count byte_count = hw_desc->byte_count_field; - - BUG_ON(!(byte_count.tx_complete && desc_ctrl.zero_result)); - - if (desc_ctrl.pq_xfer_en) - return byte_count.zero_result_err_q; - else - return byte_count.zero_result_err; -} - -static inline void iop_chan_append(struct iop_adma_chan *chan) -{ - u32 adma_accr; - - adma_accr = __raw_readl(ADMA_ACCR(chan)); - adma_accr |= 0x2; - __raw_writel(adma_accr, ADMA_ACCR(chan)); -} - -static inline u32 iop_chan_get_status(struct iop_adma_chan *chan) -{ - return __raw_readl(ADMA_ACSR(chan)); -} - -static inline void iop_chan_disable(struct iop_adma_chan *chan) -{ - u32 adma_chan_ctrl = __raw_readl(ADMA_ACCR(chan)); - adma_chan_ctrl &= ~0x1; - __raw_writel(adma_chan_ctrl, ADMA_ACCR(chan)); -} - -static inline void iop_chan_enable(struct iop_adma_chan *chan) -{ - u32 adma_chan_ctrl; - - adma_chan_ctrl = __raw_readl(ADMA_ACCR(chan)); - adma_chan_ctrl |= 0x1; - __raw_writel(adma_chan_ctrl, ADMA_ACCR(chan)); -} - -static inline void iop_adma_device_clear_eot_status(struct iop_adma_chan *chan) -{ - u32 status = __raw_readl(ADMA_ACSR(chan)); - status &= (1 << 12); - __raw_writel(status, ADMA_ACSR(chan)); -} - -static inline void iop_adma_device_clear_eoc_status(struct iop_adma_chan *chan) -{ - u32 status = __raw_readl(ADMA_ACSR(chan)); - status &= (1 << 11); - __raw_writel(status, ADMA_ACSR(chan)); -} - -static inline void iop_adma_device_clear_err_status(struct iop_adma_chan *chan) -{ - u32 status = __raw_readl(ADMA_ACSR(chan)); - status &= (1 << 9) | (1 << 5) | (1 << 4) | (1 << 3); - __raw_writel(status, ADMA_ACSR(chan)); -} - -static inline int -iop_is_err_int_parity(unsigned long status, struct iop_adma_chan *chan) -{ - return test_bit(9, &status); -} - -static inline int -iop_is_err_mcu_abort(unsigned long status, struct iop_adma_chan *chan) -{ - return test_bit(5, &status); -} - -static inline int -iop_is_err_int_tabort(unsigned long status, struct iop_adma_chan *chan) -{ - return test_bit(4, &status); -} - -static inline int -iop_is_err_int_mabort(unsigned long status, struct iop_adma_chan *chan) -{ - return test_bit(3, &status); -} - -static inline int -iop_is_err_pci_tabort(unsigned long status, struct iop_adma_chan *chan) -{ - return 0; -} - -static inline int -iop_is_err_pci_mabort(unsigned long status, struct iop_adma_chan *chan) -{ - return 0; -} - -static inline int -iop_is_err_split_tx(unsigned long status, struct iop_adma_chan *chan) -{ - return 0; -} - -#endif /* _ADMA_H */ |