drivers/memory/mtk-smi.c

20 #include <dt-bindings/memory/mt2701-larb-port.h>
152 struct mtk_smi_larb { /* larb: local arbiter */
165 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
171 			larb->larbid = i;
172 			larb->mmu = &larb_mmu[i].mmu;
173 			larb->bank = larb_mmu[i].bank;
193 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
194 	const struct mtk_smi_larb_gen *larb_gen = larb->larb_gen;
195 	struct mtk_smi *common = dev_get_drvdata(larb->smi_common_dev);
199 	m4u_port_id = larb_gen->port_in_larb[larb->larbid];
200 	larb_port_num = larb_gen->port_in_larb[larb->larbid + 1]
201 			- larb_gen->port_in_larb[larb->larbid];
204 		if (*larb->mmu & BIT(i)) {
225 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
227 	writel(*larb->mmu, larb->base + MT8167_SMI_LARB_MMU_EN);
233 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
235 	writel(*larb->mmu, larb->base + MT8173_SMI_LARB_MMU_EN);
241 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
242 	u32 reg, flags_general = larb->larb_gen->flags_general;
243 	const u8 *larbostd = larb->larb_gen->ostd ? larb->larb_gen->ostd[larb->larbid] : NULL;
247 	if (BIT(larb->larbid) & larb->larb_gen->larb_direct_to_common_mask)
251 		reg = readl_relaxed(larb->base + SMI_LARB_CMD_THRT_CON);
254 		writel_relaxed(reg, larb->base + SMI_LARB_CMD_THRT_CON);
258 		writel_relaxed(SMI_LARB_SW_FLAG_1, larb->base + SMI_LARB_SW_FLAG);
261 		writel_relaxed(larbostd[i], larb->base + SMI_LARB_OSTDL_PORTx(i));
270 			      larb->larbid, *larb->mmu, 0, 0, 0, 0, &res);
277 	for_each_set_bit(i, (unsigned long *)larb->mmu, 32) {
278 		reg = readl_relaxed(larb->base + SMI_LARB_NONSEC_CON(i));
280 		reg |= BANK_SEL(larb->bank[i]);
281 		writel(reg, larb->base + SMI_LARB_NONSEC_CON(i));
401 	/* mt8167 do not need the port in larb */
406 	/* mt8173 do not need the port in larb */
440 	{.compatible = "mediatek,mt2701-smi-larb", .data = &mtk_smi_larb_mt2701},
441 	{.compatible = "mediatek,mt2712-smi-larb", .data = &mtk_smi_larb_mt2712},
442 	{.compatible = "mediatek,mt6779-smi-larb", .data = &mtk_smi_larb_mt6779},
443 	{.compatible = "mediatek,mt6795-smi-larb", .data = &mtk_smi_larb_mt8173},
444 	{.compatible = "mediatek,mt8167-smi-larb", .data = &mtk_smi_larb_mt8167},
445 	{.compatible = "mediatek,mt8173-smi-larb", .data = &mtk_smi_larb_mt8173},
446 	{.compatible = "mediatek,mt8183-smi-larb", .data = &mtk_smi_larb_mt8183},
447 	{.compatible = "mediatek,mt8186-smi-larb", .data = &mtk_smi_larb_mt8186},
448 	{.compatible = "mediatek,mt8188-smi-larb", .data = &mtk_smi_larb_mt8188},
449 	{.compatible = "mediatek,mt8192-smi-larb", .data = &mtk_smi_larb_mt8192},
450 	{.compatible = "mediatek,mt8195-smi-larb", .data = &mtk_smi_larb_mt8195},
455 static int mtk_smi_larb_sleep_ctrl_enable(struct mtk_smi_larb *larb)
460 	writel_relaxed(SLP_PROT_EN, larb->base + SMI_LARB_SLP_CON);
461 	ret = readl_poll_timeout_atomic(larb->base + SMI_LARB_SLP_CON,
464 		/* TODO: Reset this larb if it fails here. */
465 		dev_err(larb->smi.dev, "sleep ctrl is not ready(0x%x).\n", tmp);
470 static void mtk_smi_larb_sleep_ctrl_disable(struct mtk_smi_larb *larb)
472 	writel_relaxed(0, larb->base + SMI_LARB_SLP_CON);
533 	struct mtk_smi_larb *larb;
537 	larb = devm_kzalloc(dev, sizeof(*larb), GFP_KERNEL);
538 	if (!larb)
541 	larb->larb_gen = of_device_get_match_data(dev);
542 	larb->base = devm_platform_ioremap_resource(pdev, 0);
543 	if (IS_ERR(larb->base))
544 		return PTR_ERR(larb->base);
546 	ret = mtk_smi_dts_clk_init(dev, &larb->smi, mtk_smi_larb_clks,
551 	larb->smi.dev = dev;
553 	ret = mtk_smi_device_link_common(dev, &larb->smi_common_dev);
558 	platform_set_drvdata(pdev, larb);
566 	device_link_remove(dev, larb->smi_common_dev);
572 	struct mtk_smi_larb *larb = platform_get_drvdata(pdev);
574 	device_link_remove(&pdev->dev, larb->smi_common_dev);
581 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
582 	const struct mtk_smi_larb_gen *larb_gen = larb->larb_gen;
585 	ret = clk_bulk_prepare_enable(larb->smi.clk_num, larb->smi.clks);
589 	if (MTK_SMI_CAPS(larb->larb_gen->flags_general, MTK_SMI_FLAG_SLEEP_CTL))
590 		mtk_smi_larb_sleep_ctrl_disable(larb);
592 	/* Configure the basic setting for this larb */
598 	struct mtk_smi_larb *larb = dev_get_drvdata(dev);
601 	if (MTK_SMI_CAPS(larb->larb_gen->flags_general, MTK_SMI_FLAG_SLEEP_CTL)) {
602 		ret = mtk_smi_larb_sleep_ctrl_enable(larb);
607 	clk_bulk_disable_unprepare(larb->smi.clk_num, larb->smi.clks);
621 		.name = "mtk-smi-larb",