Lines Matching full:se
14 #include <linux/qcom-geni-se.h>
19 * Generic Interface (GENI) Serial Engine (SE) Wrapper driver is introduced
33 * determined by the firmware loaded to the serial engine. Each SE consists
41 * --QUP & SE Clocks--> | Serial Engine N | +-IO------>
51 * <------SE IRQ------+ +----------------------------+ |
67 * GENI SE Wrapper driver is structured into 2 parts:
101 /* Common SE registers */
177 * @se: Pointer to the corresponding serial engine.
181 u32 geni_se_get_qup_hw_version(struct geni_se *se) in geni_se_get_qup_hw_version() argument
183 struct geni_wrapper *wrapper = se->wrapper; in geni_se_get_qup_hw_version()
222 static void geni_se_irq_clear(struct geni_se *se) in geni_se_irq_clear() argument
224 writel_relaxed(0, se->base + SE_GSI_EVENT_EN); in geni_se_irq_clear()
225 writel_relaxed(0xffffffff, se->base + SE_GENI_M_IRQ_CLEAR); in geni_se_irq_clear()
226 writel_relaxed(0xffffffff, se->base + SE_GENI_S_IRQ_CLEAR); in geni_se_irq_clear()
227 writel_relaxed(0xffffffff, se->base + SE_DMA_TX_IRQ_CLR); in geni_se_irq_clear()
228 writel_relaxed(0xffffffff, se->base + SE_DMA_RX_IRQ_CLR); in geni_se_irq_clear()
229 writel_relaxed(0xffffffff, se->base + SE_IRQ_EN); in geni_se_irq_clear()
234 * @se: Pointer to the concerned serial engine.
241 void geni_se_init(struct geni_se *se, u32 rx_wm, u32 rx_rfr) in geni_se_init() argument
245 geni_se_irq_clear(se); in geni_se_init()
246 geni_se_io_init(se->base); in geni_se_init()
247 geni_se_io_set_mode(se->base); in geni_se_init()
249 writel_relaxed(rx_wm, se->base + SE_GENI_RX_WATERMARK_REG); in geni_se_init()
250 writel_relaxed(rx_rfr, se->base + SE_GENI_RX_RFR_WATERMARK_REG); in geni_se_init()
252 val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN); in geni_se_init()
254 writel_relaxed(val, se->base + SE_GENI_M_IRQ_EN); in geni_se_init()
256 val = readl_relaxed(se->base + SE_GENI_S_IRQ_EN); in geni_se_init()
258 writel_relaxed(val, se->base + SE_GENI_S_IRQ_EN); in geni_se_init()
262 static void geni_se_select_fifo_mode(struct geni_se *se) in geni_se_select_fifo_mode() argument
264 u32 proto = geni_se_read_proto(se); in geni_se_select_fifo_mode()
267 geni_se_irq_clear(se); in geni_se_select_fifo_mode()
280 val_old = val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN); in geni_se_select_fifo_mode()
284 writel_relaxed(val, se->base + SE_GENI_M_IRQ_EN); in geni_se_select_fifo_mode()
286 val_old = val = readl_relaxed(se->base + SE_GENI_S_IRQ_EN); in geni_se_select_fifo_mode()
289 writel_relaxed(val, se->base + SE_GENI_S_IRQ_EN); in geni_se_select_fifo_mode()
292 val_old = val = readl_relaxed(se->base + SE_GENI_DMA_MODE_EN); in geni_se_select_fifo_mode()
295 writel_relaxed(val, se->base + SE_GENI_DMA_MODE_EN); in geni_se_select_fifo_mode()
298 static void geni_se_select_dma_mode(struct geni_se *se) in geni_se_select_dma_mode() argument
300 u32 proto = geni_se_read_proto(se); in geni_se_select_dma_mode()
303 geni_se_irq_clear(se); in geni_se_select_dma_mode()
306 val_old = val = readl_relaxed(se->base + SE_GENI_M_IRQ_EN); in geni_se_select_dma_mode()
310 writel_relaxed(val, se->base + SE_GENI_M_IRQ_EN); in geni_se_select_dma_mode()
312 val_old = val = readl_relaxed(se->base + SE_GENI_S_IRQ_EN); in geni_se_select_dma_mode()
315 writel_relaxed(val, se->base + SE_GENI_S_IRQ_EN); in geni_se_select_dma_mode()
318 val_old = val = readl_relaxed(se->base + SE_GENI_DMA_MODE_EN); in geni_se_select_dma_mode()
321 writel_relaxed(val, se->base + SE_GENI_DMA_MODE_EN); in geni_se_select_dma_mode()
324 static void geni_se_select_gpi_mode(struct geni_se *se) in geni_se_select_gpi_mode() argument
328 geni_se_irq_clear(se); in geni_se_select_gpi_mode()
330 writel(0, se->base + SE_IRQ_EN); in geni_se_select_gpi_mode()
332 val = readl(se->base + SE_GENI_S_IRQ_EN); in geni_se_select_gpi_mode()
334 writel(val, se->base + SE_GENI_S_IRQ_EN); in geni_se_select_gpi_mode()
336 val = readl(se->base + SE_GENI_M_IRQ_EN); in geni_se_select_gpi_mode()
339 writel(val, se->base + SE_GENI_M_IRQ_EN); in geni_se_select_gpi_mode()
341 writel(GENI_DMA_MODE_EN, se->base + SE_GENI_DMA_MODE_EN); in geni_se_select_gpi_mode()
343 val = readl(se->base + SE_GSI_EVENT_EN); in geni_se_select_gpi_mode()
345 writel(val, se->base + SE_GSI_EVENT_EN); in geni_se_select_gpi_mode()
350 * @se: Pointer to the concerned serial engine.
353 void geni_se_select_mode(struct geni_se *se, enum geni_se_xfer_mode mode) in geni_se_select_mode() argument
359 geni_se_select_fifo_mode(se); in geni_se_select_mode()
362 geni_se_select_dma_mode(se); in geni_se_select_mode()
365 geni_se_select_gpi_mode(se); in geni_se_select_mode()
426 * @se: Pointer to the concerned serial engine
436 void geni_se_config_packing(struct geni_se *se, int bpw, int pack_words, in geni_se_config_packing() argument
471 writel_relaxed(cfg0, se->base + SE_GENI_TX_PACKING_CFG0); in geni_se_config_packing()
472 writel_relaxed(cfg1, se->base + SE_GENI_TX_PACKING_CFG1); in geni_se_config_packing()
475 writel_relaxed(cfg0, se->base + SE_GENI_RX_PACKING_CFG0); in geni_se_config_packing()
476 writel_relaxed(cfg1, se->base + SE_GENI_RX_PACKING_CFG1); in geni_se_config_packing()
487 writel_relaxed(bpw / 16, se->base + SE_GENI_BYTE_GRAN); in geni_se_config_packing()
491 static void geni_se_clks_off(struct geni_se *se) in geni_se_clks_off() argument
493 struct geni_wrapper *wrapper = se->wrapper; in geni_se_clks_off()
495 clk_disable_unprepare(se->clk); in geni_se_clks_off()
503 * @se: Pointer to the concerned serial engine.
507 int geni_se_resources_off(struct geni_se *se) in geni_se_resources_off() argument
511 if (has_acpi_companion(se->dev)) in geni_se_resources_off()
514 ret = pinctrl_pm_select_sleep_state(se->dev); in geni_se_resources_off()
518 geni_se_clks_off(se); in geni_se_resources_off()
523 static int geni_se_clks_on(struct geni_se *se) in geni_se_clks_on() argument
526 struct geni_wrapper *wrapper = se->wrapper; in geni_se_clks_on()
533 ret = clk_prepare_enable(se->clk); in geni_se_clks_on()
543 * @se: Pointer to the concerned serial engine.
547 int geni_se_resources_on(struct geni_se *se) in geni_se_resources_on() argument
551 if (has_acpi_companion(se->dev)) in geni_se_resources_on()
554 ret = geni_se_clks_on(se); in geni_se_resources_on()
558 ret = pinctrl_pm_select_default_state(se->dev); in geni_se_resources_on()
560 geni_se_clks_off(se); in geni_se_resources_on()
568 * @se: Pointer to the concerned serial engine.
579 int geni_se_clk_tbl_get(struct geni_se *se, unsigned long **tbl) in geni_se_clk_tbl_get() argument
584 if (se->clk_perf_tbl) { in geni_se_clk_tbl_get()
585 *tbl = se->clk_perf_tbl; in geni_se_clk_tbl_get()
586 return se->num_clk_levels; in geni_se_clk_tbl_get()
589 se->clk_perf_tbl = devm_kcalloc(se->dev, MAX_CLK_PERF_LEVEL, in geni_se_clk_tbl_get()
590 sizeof(*se->clk_perf_tbl), in geni_se_clk_tbl_get()
592 if (!se->clk_perf_tbl) in geni_se_clk_tbl_get()
596 freq = clk_round_rate(se->clk, freq + 1); in geni_se_clk_tbl_get()
597 if (freq <= 0 || freq == se->clk_perf_tbl[i - 1]) in geni_se_clk_tbl_get()
599 se->clk_perf_tbl[i] = freq; in geni_se_clk_tbl_get()
601 se->num_clk_levels = i; in geni_se_clk_tbl_get()
602 *tbl = se->clk_perf_tbl; in geni_se_clk_tbl_get()
603 return se->num_clk_levels; in geni_se_clk_tbl_get()
608 * geni_se_clk_freq_match() - Get the matching or closest SE clock frequency
609 * @se: Pointer to the concerned serial engine.
626 int geni_se_clk_freq_match(struct geni_se *se, unsigned long req_freq, in geni_se_clk_freq_match() argument
637 num_clk_levels = geni_se_clk_tbl_get(se, &tbl); in geni_se_clk_freq_match()
675 * @se: Pointer to the concerned serial engine.
684 int geni_se_tx_dma_prep(struct geni_se *se, void *buf, size_t len, in geni_se_tx_dma_prep() argument
687 struct geni_wrapper *wrapper = se->wrapper; in geni_se_tx_dma_prep()
700 writel_relaxed(val, se->base + SE_DMA_TX_IRQ_EN_SET); in geni_se_tx_dma_prep()
701 writel_relaxed(lower_32_bits(*iova), se->base + SE_DMA_TX_PTR_L); in geni_se_tx_dma_prep()
702 writel_relaxed(upper_32_bits(*iova), se->base + SE_DMA_TX_PTR_H); in geni_se_tx_dma_prep()
703 writel_relaxed(GENI_SE_DMA_EOT_BUF, se->base + SE_DMA_TX_ATTR); in geni_se_tx_dma_prep()
704 writel(len, se->base + SE_DMA_TX_LEN); in geni_se_tx_dma_prep()
711 * @se: Pointer to the concerned serial engine.
720 int geni_se_rx_dma_prep(struct geni_se *se, void *buf, size_t len, in geni_se_rx_dma_prep() argument
723 struct geni_wrapper *wrapper = se->wrapper; in geni_se_rx_dma_prep()
736 writel_relaxed(val, se->base + SE_DMA_RX_IRQ_EN_SET); in geni_se_rx_dma_prep()
737 writel_relaxed(lower_32_bits(*iova), se->base + SE_DMA_RX_PTR_L); in geni_se_rx_dma_prep()
738 writel_relaxed(upper_32_bits(*iova), se->base + SE_DMA_RX_PTR_H); in geni_se_rx_dma_prep()
740 writel_relaxed(0, se->base + SE_DMA_RX_ATTR); in geni_se_rx_dma_prep()
741 writel(len, se->base + SE_DMA_RX_LEN); in geni_se_rx_dma_prep()
748 * @se: Pointer to the concerned serial engine.
754 void geni_se_tx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len) in geni_se_tx_dma_unprep() argument
756 struct geni_wrapper *wrapper = se->wrapper; in geni_se_tx_dma_unprep()
765 * @se: Pointer to the concerned serial engine.
771 void geni_se_rx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len) in geni_se_rx_dma_unprep() argument
773 struct geni_wrapper *wrapper = se->wrapper; in geni_se_rx_dma_unprep()
780 int geni_icc_get(struct geni_se *se, const char *icc_ddr) in geni_icc_get() argument
785 if (has_acpi_companion(se->dev)) in geni_icc_get()
788 for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { in geni_icc_get()
792 se->icc_paths[i].path = devm_of_icc_get(se->dev, icc_names[i]); in geni_icc_get()
793 if (IS_ERR(se->icc_paths[i].path)) in geni_icc_get()
800 err = PTR_ERR(se->icc_paths[i].path); in geni_icc_get()
802 dev_err_ratelimited(se->dev, "Failed to get ICC path '%s': %d\n", in geni_icc_get()
809 int geni_icc_set_bw(struct geni_se *se) in geni_icc_set_bw() argument
813 for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { in geni_icc_set_bw()
814 ret = icc_set_bw(se->icc_paths[i].path, in geni_icc_set_bw()
815 se->icc_paths[i].avg_bw, se->icc_paths[i].avg_bw); in geni_icc_set_bw()
817 dev_err_ratelimited(se->dev, "ICC BW voting failed on path '%s': %d\n", in geni_icc_set_bw()
827 void geni_icc_set_tag(struct geni_se *se, u32 tag) in geni_icc_set_tag() argument
831 for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) in geni_icc_set_tag()
832 icc_set_tag(se->icc_paths[i].path, tag); in geni_icc_set_tag()
837 int geni_icc_enable(struct geni_se *se) in geni_icc_enable() argument
841 for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { in geni_icc_enable()
842 ret = icc_enable(se->icc_paths[i].path); in geni_icc_enable()
844 dev_err_ratelimited(se->dev, "ICC enable failed on path '%s': %d\n", in geni_icc_enable()
854 int geni_icc_disable(struct geni_se *se) in geni_icc_disable() argument
858 for (i = 0; i < ARRAY_SIZE(se->icc_paths); i++) { in geni_icc_disable()
859 ret = icc_disable(se->icc_paths[i].path); in geni_icc_disable()
861 dev_err_ratelimited(se->dev, "ICC disable failed on path '%s': %d\n", in geni_icc_disable()
899 dev_dbg(dev, "GENI SE Driver probed\n"); in geni_se_probe()
904 { .compatible = "qcom,geni-se-qup", },