diff options
Diffstat (limited to 'target/linux/ipq40xx/patches-4.14/050-0002-mtd-nand-qcom-add-command-elements-in-BAM-transactio.patch')
| -rw-r--r-- | target/linux/ipq40xx/patches-4.14/050-0002-mtd-nand-qcom-add-command-elements-in-BAM-transactio.patch | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/target/linux/ipq40xx/patches-4.14/050-0002-mtd-nand-qcom-add-command-elements-in-BAM-transactio.patch b/target/linux/ipq40xx/patches-4.14/050-0002-mtd-nand-qcom-add-command-elements-in-BAM-transactio.patch deleted file mode 100644 index 1a32cc3767..0000000000 --- a/target/linux/ipq40xx/patches-4.14/050-0002-mtd-nand-qcom-add-command-elements-in-BAM-transactio.patch +++ /dev/null @@ -1,89 +0,0 @@ -From 8c4cdce8b1ab044a2ee1d86d5a086f67e32b3c10 Mon Sep 17 00:00:00 2001 -From: Abhishek Sahu <absahu@codeaurora.org> -Date: Mon, 25 Sep 2017 13:21:25 +0530 -Subject: [PATCH 2/7] mtd: nand: qcom: add command elements in BAM transaction - -All the QPIC register read/write through BAM DMA requires -command descriptor which contains the array of command elements. - -Reviewed-by: Archit Taneja <architt@codeaurora.org> -Signed-off-by: Abhishek Sahu <absahu@codeaurora.org> -Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> ---- - drivers/mtd/nand/qcom_nandc.c | 19 ++++++++++++++++++- - 1 file changed, 18 insertions(+), 1 deletion(-) - ---- a/drivers/mtd/nand/qcom_nandc.c -+++ b/drivers/mtd/nand/qcom_nandc.c -@@ -22,6 +22,7 @@ - #include <linux/of.h> - #include <linux/of_device.h> - #include <linux/delay.h> -+#include <linux/dma/qcom_bam_dma.h> - - /* NANDc reg offsets */ - #define NAND_FLASH_CMD 0x00 -@@ -199,6 +200,7 @@ nandc_set_reg(nandc, NAND_READ_LOCATION_ - */ - #define dev_cmd_reg_addr(nandc, reg) ((nandc)->props->dev_cmd_reg_start + (reg)) - -+#define QPIC_PER_CW_CMD_ELEMENTS 32 - #define QPIC_PER_CW_CMD_SGL 32 - #define QPIC_PER_CW_DATA_SGL 8 - -@@ -221,8 +223,13 @@ nandc_set_reg(nandc, NAND_READ_LOCATION_ - /* - * This data type corresponds to the BAM transaction which will be used for all - * NAND transfers. -+ * @bam_ce - the array of BAM command elements - * @cmd_sgl - sgl for NAND BAM command pipe - * @data_sgl - sgl for NAND BAM consumer/producer pipe -+ * @bam_ce_pos - the index in bam_ce which is available for next sgl -+ * @bam_ce_start - the index in bam_ce which marks the start position ce -+ * for current sgl. It will be used for size calculation -+ * for current sgl - * @cmd_sgl_pos - current index in command sgl. - * @cmd_sgl_start - start index in command sgl. - * @tx_sgl_pos - current index in data sgl for tx. -@@ -231,8 +238,11 @@ nandc_set_reg(nandc, NAND_READ_LOCATION_ - * @rx_sgl_start - start index in data sgl for rx. - */ - struct bam_transaction { -+ struct bam_cmd_element *bam_ce; - struct scatterlist *cmd_sgl; - struct scatterlist *data_sgl; -+ u32 bam_ce_pos; -+ u32 bam_ce_start; - u32 cmd_sgl_pos; - u32 cmd_sgl_start; - u32 tx_sgl_pos; -@@ -462,7 +472,8 @@ alloc_bam_transaction(struct qcom_nand_c - - bam_txn_size = - sizeof(*bam_txn) + num_cw * -- ((sizeof(*bam_txn->cmd_sgl) * QPIC_PER_CW_CMD_SGL) + -+ ((sizeof(*bam_txn->bam_ce) * QPIC_PER_CW_CMD_ELEMENTS) + -+ (sizeof(*bam_txn->cmd_sgl) * QPIC_PER_CW_CMD_SGL) + - (sizeof(*bam_txn->data_sgl) * QPIC_PER_CW_DATA_SGL)); - - bam_txn_buf = devm_kzalloc(nandc->dev, bam_txn_size, GFP_KERNEL); -@@ -472,6 +483,10 @@ alloc_bam_transaction(struct qcom_nand_c - bam_txn = bam_txn_buf; - bam_txn_buf += sizeof(*bam_txn); - -+ bam_txn->bam_ce = bam_txn_buf; -+ bam_txn_buf += -+ sizeof(*bam_txn->bam_ce) * QPIC_PER_CW_CMD_ELEMENTS * num_cw; -+ - bam_txn->cmd_sgl = bam_txn_buf; - bam_txn_buf += - sizeof(*bam_txn->cmd_sgl) * QPIC_PER_CW_CMD_SGL * num_cw; -@@ -489,6 +504,8 @@ static void clear_bam_transaction(struct - if (!nandc->props->is_bam) - return; - -+ bam_txn->bam_ce_pos = 0; -+ bam_txn->bam_ce_start = 0; - bam_txn->cmd_sgl_pos = 0; - bam_txn->cmd_sgl_start = 0; - bam_txn->tx_sgl_pos = 0; |