95 static int __opb_write(struct fsi_master_aspeed *aspeed, u32 addr,  in __opb_write()  argument
98 	void __iomem *base = aspeed->base;  in __opb_write()
128 static int opb_writeb(struct fsi_master_aspeed *aspeed, u32 addr, u8 val)  in opb_writeb()  argument
130 	return __opb_write(aspeed, addr, val, XFER_BYTE);  in opb_writeb()
133 static int opb_writew(struct fsi_master_aspeed *aspeed, u32 addr, __be16 val)  in opb_writew()  argument
135 	return __opb_write(aspeed, addr, (__force u16)val, XFER_HALFWORD);  in opb_writew()
138 static int opb_writel(struct fsi_master_aspeed *aspeed, u32 addr, __be32 val)  in opb_writel()  argument
140 	return __opb_write(aspeed, addr, (__force u32)val, XFER_FULLWORD);  in opb_writel()
143 static int __opb_read(struct fsi_master_aspeed *aspeed, uint32_t addr,  in __opb_read()  argument
146 	void __iomem *base = aspeed->base;  in __opb_read()
196 static int opb_readl(struct fsi_master_aspeed *aspeed, uint32_t addr, __be32 *out)  in opb_readl()  argument
198 	return __opb_read(aspeed, addr, XFER_FULLWORD, out);  in opb_readl()
201 static int opb_readw(struct fsi_master_aspeed *aspeed, uint32_t addr, __be16 *out)  in opb_readw()  argument
203 	return __opb_read(aspeed, addr, XFER_HALFWORD, (void *)out);  in opb_readw()
206 static int opb_readb(struct fsi_master_aspeed *aspeed, uint32_t addr, u8 *out)  in opb_readb()  argument
208 	return __opb_read(aspeed, addr, XFER_BYTE, (void *)out);  in opb_readb()
211 static int check_errors(struct fsi_master_aspeed *aspeed, int err)  in check_errors()  argument
218 		opb_readl(aspeed, ctrl_base + FSI_MRESP0, &mresp0);  in check_errors()
219 		opb_readl(aspeed, ctrl_base + FSI_MSTAP0, &mstap0);  in check_errors()
220 		opb_readl(aspeed, ctrl_base + FSI_MESRB0, &mesrb0);  in check_errors()
232 		ret = opb_writel(aspeed, ctrl_base + FSI_MRESP0,  in check_errors()
248 	struct fsi_master_aspeed *aspeed = to_fsi_master_aspeed(master);  in aspeed_master_read()  local
259 		ret = opb_readb(aspeed, fsi_base + addr, val);  in aspeed_master_read()
262 		ret = opb_readw(aspeed, fsi_base + addr, val);  in aspeed_master_read()
265 		ret = opb_readl(aspeed, fsi_base + addr, val);  in aspeed_master_read()
271 	ret = check_errors(aspeed, ret);  in aspeed_master_read()
281 	struct fsi_master_aspeed *aspeed = to_fsi_master_aspeed(master);  in aspeed_master_write()  local
292 		ret = opb_writeb(aspeed, fsi_base + addr, *(u8 *)val);  in aspeed_master_write()
295 		ret = opb_writew(aspeed, fsi_base + addr, *(__be16 *)val);  in aspeed_master_write()
298 		ret = opb_writel(aspeed, fsi_base + addr, *(__be32 *)val);  in aspeed_master_write()
304 	ret = check_errors(aspeed, ret);  in aspeed_master_write()
314 	struct fsi_master_aspeed *aspeed = to_fsi_master_aspeed(master);  in aspeed_master_link_enable()  local
324 		return opb_writel(aspeed, ctrl_base + FSI_MCENP0 + (4 * idx),  in aspeed_master_link_enable()
327 	ret = opb_writel(aspeed, ctrl_base + FSI_MSENP0 + (4 * idx), reg);  in aspeed_master_link_enable()
360 	struct fsi_master_aspeed *aspeed =  in aspeed_master_release()  local
363 	kfree(aspeed);  in aspeed_master_release()
377 static int aspeed_master_init(struct fsi_master_aspeed *aspeed)  in aspeed_master_init()  argument
383 	opb_writel(aspeed, ctrl_base + FSI_MRESP0, reg);  in aspeed_master_init()
388 	opb_writel(aspeed, ctrl_base + FSI_MRESP0, reg);  in aspeed_master_init()
391 	opb_writel(aspeed, ctrl_base + FSI_MECTRL, reg);  in aspeed_master_init()
397 	dev_info(aspeed->dev, "mmode set to %08x (divisor %d)\n",  in aspeed_master_init()
399 	opb_writel(aspeed, ctrl_base + FSI_MMODE, reg);  in aspeed_master_init()
402 	opb_writel(aspeed, ctrl_base + FSI_MDLYR, reg);  in aspeed_master_init()
405 	opb_writel(aspeed, ctrl_base + FSI_MSENP0, reg);  in aspeed_master_init()
410 	opb_writel(aspeed, ctrl_base + FSI_MCENP0, reg);  in aspeed_master_init()
412 	opb_readl(aspeed, ctrl_base + FSI_MAEB, NULL);  in aspeed_master_init()
415 	opb_writel(aspeed, ctrl_base + FSI_MRESP0, reg);  in aspeed_master_init()
417 	opb_readl(aspeed, ctrl_base + FSI_MLEVP0, NULL);  in aspeed_master_init()
421 	opb_writel(aspeed, ctrl_base + FSI_MRESB0, reg);  in aspeed_master_init()
424 	opb_writel(aspeed, ctrl_base + FSI_MRESB0, reg);  in aspeed_master_init()
432 	struct fsi_master_aspeed *aspeed = dev_get_drvdata(dev);  in cfam_reset_store()  local
434 	gpiod_set_value(aspeed->cfam_reset_gpio, 1);  in cfam_reset_store()
436 	gpiod_set_value(aspeed->cfam_reset_gpio, 0);  in cfam_reset_store()
443 static int setup_cfam_reset(struct fsi_master_aspeed *aspeed)  in setup_cfam_reset()  argument
445 	struct device *dev = aspeed->dev;  in setup_cfam_reset()
455 	aspeed->cfam_reset_gpio = gpio;  in setup_cfam_reset()
515 	struct fsi_master_aspeed *aspeed;  in fsi_master_aspeed_probe()  local
526 	aspeed = devm_kzalloc(&pdev->dev, sizeof(*aspeed), GFP_KERNEL);  in fsi_master_aspeed_probe()
527 	if (!aspeed)  in fsi_master_aspeed_probe()
530 	aspeed->dev = &pdev->dev;  in fsi_master_aspeed_probe()
533 	aspeed->base = devm_ioremap_resource(&pdev->dev, res);  in fsi_master_aspeed_probe()
534 	if (IS_ERR(aspeed->base))  in fsi_master_aspeed_probe()
535 		return PTR_ERR(aspeed->base);  in fsi_master_aspeed_probe()
537 	aspeed->clk = devm_clk_get(aspeed->dev, NULL);  in fsi_master_aspeed_probe()
538 	if (IS_ERR(aspeed->clk)) {  in fsi_master_aspeed_probe()
539 		dev_err(aspeed->dev, "couldn't get clock\n");  in fsi_master_aspeed_probe()
540 		return PTR_ERR(aspeed->clk);  in fsi_master_aspeed_probe()
542 	rc = clk_prepare_enable(aspeed->clk);  in fsi_master_aspeed_probe()
544 		dev_err(aspeed->dev, "couldn't enable clock\n");  in fsi_master_aspeed_probe()
548 	rc = setup_cfam_reset(aspeed);  in fsi_master_aspeed_probe()
553 	writel(0x1, aspeed->base + OPB_CLK_SYNC);  in fsi_master_aspeed_probe()
555 			aspeed->base + OPB_IRQ_MASK);  in fsi_master_aspeed_probe()
558 	writel(0x10, aspeed->base + OPB_RETRY_COUNTER);  in fsi_master_aspeed_probe()
560 	writel(ctrl_base, aspeed->base + OPB_CTRL_BASE);  in fsi_master_aspeed_probe()
561 	writel(fsi_base, aspeed->base + OPB_FSI_BASE);  in fsi_master_aspeed_probe()
564 	writel(0x00030b1b, aspeed->base + OPB0_READ_ORDER1);  in fsi_master_aspeed_probe()
567 	writel(0x0011101b, aspeed->base + OPB0_WRITE_ORDER1);  in fsi_master_aspeed_probe()
568 	writel(0x0c330f3f, aspeed->base + OPB0_WRITE_ORDER2);  in fsi_master_aspeed_probe()
575 	writel(0x1, aspeed->base + OPB0_SELECT);  in fsi_master_aspeed_probe()
577 	rc = opb_readl(aspeed, ctrl_base + FSI_MVER, &raw);  in fsi_master_aspeed_probe()
587 	aspeed->master.dev.parent = &pdev->dev;  in fsi_master_aspeed_probe()
588 	aspeed->master.dev.release = aspeed_master_release;  in fsi_master_aspeed_probe()
589 	aspeed->master.dev.of_node = of_node_get(dev_of_node(&pdev->dev));  in fsi_master_aspeed_probe()
591 	aspeed->master.n_links = links;  in fsi_master_aspeed_probe()
592 	aspeed->master.read = aspeed_master_read;  in fsi_master_aspeed_probe()
593 	aspeed->master.write = aspeed_master_write;  in fsi_master_aspeed_probe()
594 	aspeed->master.send_break = aspeed_master_break;  in fsi_master_aspeed_probe()
595 	aspeed->master.term = aspeed_master_term;  in fsi_master_aspeed_probe()
596 	aspeed->master.link_enable = aspeed_master_link_enable;  in fsi_master_aspeed_probe()
598 	dev_set_drvdata(&pdev->dev, aspeed);  in fsi_master_aspeed_probe()
600 	aspeed_master_init(aspeed);  in fsi_master_aspeed_probe()
602 	rc = fsi_master_register(&aspeed->master);  in fsi_master_aspeed_probe()
613 	get_device(&aspeed->master.dev);  in fsi_master_aspeed_probe()
617 	clk_disable_unprepare(aspeed->clk);  in fsi_master_aspeed_probe()
623 	struct fsi_master_aspeed *aspeed = platform_get_drvdata(pdev);  in fsi_master_aspeed_remove()  local
625 	fsi_master_unregister(&aspeed->master);  in fsi_master_aspeed_remove()
626 	clk_disable_unprepare(aspeed->clk);  in fsi_master_aspeed_remove()
632 	{ .compatible = "aspeed,ast2600-fsi-master" },
638 		.name		= "fsi-master-aspeed",