16 #include <linux/soc/qcom/geni-se.h>
20 /* SPI SE specific registers and respective register fields */
79 	struct geni_se se;  member
108 	struct geni_se *se = &mas->se;  in spi_slv_setup()  local
110 	writel(SPI_SLAVE_EN, se->base + SE_SPI_SLAVE_EN);  in spi_slv_setup()
111 	writel(GENI_IO_MUX_0_EN, se->base + GENI_OUTPUT_CTRL);  in spi_slv_setup()
112 	writel(START_TRIGGER, se->base + SE_GENI_CFG_SEQ_START);  in spi_slv_setup()
125 	ret = geni_se_clk_freq_match(&mas->se,  in get_spi_clk_cfg()
153 	struct geni_se *se = &mas->se;  in handle_se_timeout()  local
158 		writel(0, se->base + SE_GENI_TX_WATERMARK_REG);  in handle_se_timeout()
173 	geni_se_cancel_m_cmd(se);  in handle_se_timeout()
182 	geni_se_abort_m_cmd(se);  in handle_se_timeout()
202 				writel(1, se->base + SE_DMA_TX_FSM_RST);  in handle_se_timeout()
211 				writel(1, se->base + SE_DMA_RX_FSM_RST);  in handle_se_timeout()
255 	struct geni_se *se = &mas->se;  in spi_geni_is_abort_still_pending()  local
268 	m_irq = readl(se->base + SE_GENI_M_IRQ_STATUS);  in spi_geni_is_abort_still_pending()
269 	m_irq_en = readl(se->base + SE_GENI_M_IRQ_EN);  in spi_geni_is_abort_still_pending()
291 	struct geni_se *se = &mas->se;  in spi_geni_set_cs()  local
317 	geni_se_select_mode(se, mas->cur_xfer_mode);  in spi_geni_set_cs()
321 		geni_se_setup_m_cmd(se, SPI_CS_ASSERT, 0);  in spi_geni_set_cs()
323 		geni_se_setup_m_cmd(se, SPI_CS_DEASSERT, 0);  in spi_geni_set_cs()
341 	struct geni_se *se = &mas->se;  in spi_setup_word_len()  local
352 	geni_se_config_packing(&mas->se, bits_per_word, pack_words, msb_first,  in spi_setup_word_len()
355 	writel(word_len, se->base + SE_SPI_WORD_LEN);  in spi_setup_word_len()
362 	struct geni_se *se = &mas->se;  in geni_spi_set_clock_and_bw()  local
385 	writel(clk_sel, se->base + SE_GENI_CLK_SEL);  in geni_spi_set_clock_and_bw()
386 	writel(m_clk_cfg, se->base + GENI_SER_M_CLK_CFG);  in geni_spi_set_clock_and_bw()
389 	se->icc_paths[CPU_TO_GENI].avg_bw = Bps_to_icc(mas->cur_speed_hz);  in geni_spi_set_clock_and_bw()
390 	ret = geni_icc_set_bw(se);  in geni_spi_set_clock_and_bw()
401 	struct geni_se *se = &mas->se;  in setup_fifo_params()  local
422 		writel(loopback_cfg, se->base + SE_SPI_LOOPBACK);  in setup_fifo_params()
423 		writel(demux_sel, se->base + SE_SPI_DEMUX_SEL);  in setup_fifo_params()
424 		writel(cpha, se->base + SE_SPI_CPHA);  in setup_fifo_params()
425 		writel(cpol, se->base + SE_SPI_CPOL);  in setup_fifo_params()
426 		writel(demux_output_inv, se->base + SE_SPI_DEMUX_OUTPUT_INV);  in setup_fifo_params()
569 	/* Set SE DMA mode for SPI target. */  in geni_can_dma()
659 	struct geni_se *se = &mas->se;  in spi_geni_init()  local
666 	proto = geni_se_read_proto(se);  in spi_geni_init()
678 	mas->tx_fifo_depth = geni_se_get_tx_fifo_depth(se);  in spi_geni_init()
681 	mas->fifo_width_bits = geni_se_get_tx_fifo_width(se);  in spi_geni_init()
687 	geni_se_init(se, mas->tx_fifo_depth - 3, mas->tx_fifo_depth - 2);  in spi_geni_init()
690 	ver = geni_se_get_qup_hw_version(se);  in spi_geni_init()
699 	fifo_disable = readl(se->base + GENI_IF_DISABLE_RO) & FIFO_IF_DISABLE;  in spi_geni_init()
705 			geni_se_select_mode(se, GENI_GPI_DMA);  in spi_geni_init()
720 		geni_se_select_mode(se, GENI_SE_FIFO);  in spi_geni_init()
727 		spi_tx_cfg = readl(se->base + SE_SPI_TRANS_CFG);  in spi_geni_init()
729 		writel(spi_tx_cfg, se->base + SE_SPI_TRANS_CFG);  in spi_geni_init()
753 	struct geni_se *se = &mas->se;  in geni_spi_handle_tx()  local
761 		writel(0, se->base + SE_GENI_TX_WATERMARK_REG);  in geni_spi_handle_tx()
779 		iowrite32_rep(se->base + SE_GENI_TX_FIFOn, &fifo_word, 1);  in geni_spi_handle_tx()
783 		writel(0, se->base + SE_GENI_TX_WATERMARK_REG);  in geni_spi_handle_tx()
791 	struct geni_se *se = &mas->se;  in geni_spi_handle_rx()  local
799 	rx_fifo_status = readl(se->base + SE_GENI_RX_FIFO_STATUS);  in geni_spi_handle_rx()
811 			readl(se->base + SE_GENI_RX_FIFOn);  in geni_spi_handle_rx()
826 		ioread32_rep(se->base + SE_GENI_RX_FIFOn, &fifo_word, 1);  in geni_spi_handle_rx()
839 	struct geni_se *se = &mas->se;  in setup_se_xfer()  local
876 		writel(len, se->base + SE_SPI_TX_TRANS_LEN);  in setup_se_xfer()
881 		writel(len, se->base + SE_SPI_RX_TRANS_LEN);  in setup_se_xfer()
899 	geni_se_select_mode(se, mas->cur_xfer_mode);  in setup_se_xfer()
906 	geni_se_setup_m_cmd(se, m_cmd, FRAGMENTATION);  in setup_se_xfer()
910 			geni_se_rx_init_dma(se, sg_dma_address(xfer->rx_sg.sgl),  in setup_se_xfer()
913 			geni_se_tx_init_dma(se, sg_dma_address(xfer->tx_sg.sgl),  in setup_se_xfer()
917 			writel(mas->tx_wm, se->base + SE_GENI_TX_WATERMARK_REG);  in setup_se_xfer()
952 	struct geni_se *se = &mas->se;  in geni_spi_isr()  local
955 	m_irq = readl(se->base + SE_GENI_M_IRQ_STATUS);  in geni_spi_isr()
991 					writel(0, se->base + SE_GENI_TX_WATERMARK_REG);  in geni_spi_isr()
1004 		u32 dma_tx_status = readl_relaxed(se->base + SE_DMA_TX_IRQ_STAT);  in geni_spi_isr()
1005 		u32 dma_rx_status = readl_relaxed(se->base + SE_DMA_RX_IRQ_STAT);  in geni_spi_isr()
1008 			writel(dma_tx_status, se->base + SE_DMA_TX_IRQ_CLR);  in geni_spi_isr()
1010 			writel(dma_rx_status, se->base + SE_DMA_RX_IRQ_CLR);  in geni_spi_isr()
1043 	writel(m_irq, se->base + SE_GENI_M_IRQ_CLEAR);  in geni_spi_isr()
1071 	clk = devm_clk_get(dev, "se");  in spi_geni_probe()
1083 	mas->se.dev = dev;  in spi_geni_probe()
1084 	mas->se.wrapper = dev_get_drvdata(dev->parent);  in spi_geni_probe()
1085 	mas->se.base = base;  in spi_geni_probe()
1086 	mas->se.clk = clk;  in spi_geni_probe()
1088 	ret = devm_pm_opp_set_clkname(&pdev->dev, "se");  in spi_geni_probe()
1120 	ret = geni_icc_get(&mas->se, NULL);  in spi_geni_probe()
1134 	mas->se.icc_paths[GENI_TO_CORE].avg_bw = Bps_to_icc(CORE_2X_50_MHZ);  in spi_geni_probe()
1135 	mas->se.icc_paths[CPU_TO_GENI].avg_bw = GENI_DEFAULT_BW;  in spi_geni_probe()
1137 	ret = geni_icc_set_bw(&mas->se);  in spi_geni_probe()
1175 	ret = geni_se_resources_off(&mas->se);  in spi_geni_runtime_suspend()
1179 	return geni_icc_disable(&mas->se);  in spi_geni_runtime_suspend()
1188 	ret = geni_icc_enable(&mas->se);  in spi_geni_runtime_resume()
1192 	ret = geni_se_resources_on(&mas->se);  in spi_geni_runtime_resume()