4  * SPDX-License-Identifier:     GPL-2.0+
48 	debug("ctrl0: \t\t0x%08x\n", readl(&regs->ctrlr0));  in rkspi_dump_regs()
49 	debug("ctrl1: \t\t0x%08x\n", readl(&regs->ctrlr1));  in rkspi_dump_regs()
50 	debug("ssienr: \t\t0x%08x\n", readl(&regs->enr));  in rkspi_dump_regs()
51 	debug("ser: \t\t0x%08x\n", readl(&regs->ser));  in rkspi_dump_regs()
52 	debug("baudr: \t\t0x%08x\n", readl(&regs->baudr));  in rkspi_dump_regs()
53 	debug("txftlr: \t\t0x%08x\n", readl(&regs->txftlr));  in rkspi_dump_regs()
54 	debug("rxftlr: \t\t0x%08x\n", readl(&regs->rxftlr));  in rkspi_dump_regs()
55 	debug("txflr: \t\t0x%08x\n", readl(&regs->txflr));  in rkspi_dump_regs()
56 	debug("rxflr: \t\t0x%08x\n", readl(&regs->rxflr));  in rkspi_dump_regs()
57 	debug("sr: \t\t0x%08x\n", readl(&regs->sr));  in rkspi_dump_regs()
58 	debug("imr: \t\t0x%08x\n", readl(&regs->imr));  in rkspi_dump_regs()
59 	debug("isr: \t\t0x%08x\n", readl(&regs->isr));  in rkspi_dump_regs()
60 	debug("dmacr: \t\t0x%08x\n", readl(&regs->dmacr));  in rkspi_dump_regs()
61 	debug("dmatdlr: \t0x%08x\n", readl(&regs->dmatdlr));  in rkspi_dump_regs()
62 	debug("dmardlr: \t0x%08x\n", readl(&regs->dmardlr));  in rkspi_dump_regs()
67 	writel(enable ? 1 : 0, &regs->enr);  in rkspi_enable_chip()
72 	writel(clk_div, &priv->regs->baudr);  in rkspi_set_baudr()
80 	while (readl(&regs->sr) & SR_BUSY) {  in rkspi_wait_till_not_busy()
83 			return -ETIMEDOUT;  in rkspi_wait_till_not_busy()
90 static void spi_cs_activate(u8 bus, u8 cs)  in spi_cs_activate()  argument
93 	struct rockchip_spi *regs = priv->regs;  in spi_cs_activate()
95 	debug("activate cs%u\n", cs);  in spi_cs_activate()
96 	writel(1 << cs, &regs->ser);  in spi_cs_activate()
99 static void spi_cs_deactivate(u8 bus, u8 cs)  in spi_cs_deactivate()  argument
102 	struct rockchip_spi *regs = priv->regs;  in spi_cs_deactivate()
104 	debug("deactivate cs%u\n", cs);  in spi_cs_deactivate()
105 	writel(0, &regs->ser);  in spi_cs_deactivate()
113 		printf("%s bus %d is out of max num(%d)\n", __func__, bus, RK_SPI_BUS_MAX);  in rockchip_spi_probe()
114 		return -1;  in rockchip_spi_probe()
121 	priv->regs = (struct rockchip_spi *)base_addr;  in rockchip_spi_probe()
122 	priv->rsd = rsd;  in rockchip_spi_probe()
123 	priv->mode = mode;  in rockchip_spi_probe()
127 		return -1;  in rockchip_spi_probe()
129 	priv->clock_div = clock_div;  in rockchip_spi_probe()
130 	priv->bits_per_word = 8;  in rockchip_spi_probe()
138 	struct rockchip_spi *regs = priv->regs;  in rockchip_spi_claim_bus()
145 	switch (priv->bits_per_word) {  in rockchip_spi_claim_bus()
147 		priv->n_bytes = 1;  in rockchip_spi_claim_bus()
152 		priv->n_bytes = 2;  in rockchip_spi_claim_bus()
158 		      priv->bits_per_word);  in rockchip_spi_claim_bus()
159 		return -EPROTONOSUPPORT;  in rockchip_spi_claim_bus()
162 	rkspi_set_baudr(priv, priv->clock_div);  in rockchip_spi_claim_bus()
171 	if (priv->mode & SPI_CPOL)  in rockchip_spi_claim_bus()
173 	if (priv->mode & SPI_CPHA)  in rockchip_spi_claim_bus()
192 	ctrlr0 |= priv->rsd << RXDSD_SHIFT;  in rockchip_spi_claim_bus()
198 	priv->cr0 = ctrlr0;  in rockchip_spi_claim_bus()
200 	writel(ctrlr0, &regs->ctrlr0);  in rockchip_spi_claim_bus()
207 	struct rockchip_spi *regs = priv->regs;  in rockchip_spi_config()
208 	uint ctrlr0 = priv->cr0;  in rockchip_spi_config()
217 	writel(ctrlr0, &regs->ctrlr0);  in rockchip_spi_config()
226 	rkspi_enable_chip(priv->regs, false);  in rockchip_spi_release_bus()
229 int rockchip_spi_xfer(u8 bus, u8 cs, unsigned int bitlen, const void *dout, void *din, unsigned lon…  in rockchip_spi_xfer()  argument
232 	struct rockchip_spi *regs = priv->regs;  in rockchip_spi_xfer()
234 	const u8 *out = dout;  in rockchip_spi_xfer()  local
246 	/* Assert CS before transfer */  in rockchip_spi_xfer()
248 		spi_cs_activate(bus, cs);  in rockchip_spi_xfer()
254 		writel(todo - 1, &regs->ctrlr1);  in rockchip_spi_xfer()
260 			u32 status = readl(&regs->sr);  in rockchip_spi_xfer()
263 				if (out)  in rockchip_spi_xfer()
264 					writel(out ? *out++ : 0, regs->txdr);  in rockchip_spi_xfer()
265 				towrite--;  in rockchip_spi_xfer()
268 				u32 byte = readl(regs->rxdr);  in rockchip_spi_xfer()
272 				toread--;  in rockchip_spi_xfer()
278 		len -= todo;  in rockchip_spi_xfer()
281 	/* Deassert CS after transfer */  in rockchip_spi_xfer()
283 		spi_cs_deactivate(bus, cs);  in rockchip_spi_xfer()
290 int rockchip_spi_write_then_read(u8 bus, u8 cs, const u8 *opcode,  in rockchip_spi_write_then_read()  argument
300 	ret = rockchip_spi_xfer(bus, cs, n_opcode * 8, opcode, NULL, flags);  in rockchip_spi_write_then_read()
305 		ret = rockchip_spi_xfer(bus, cs, n_buf * 8, txbuf, rxbuf, SPI_XFER_END);  in rockchip_spi_write_then_read()
356 	printf("Actual U-Boot ABI version %d\n", (int)get_version());  in main()
372 	u8 bus, cs;  in main()  local
385 		return -1;  in main()
392 	cs = 0;  in main()
402 	ret = rockchip_spi_xfer(bus, cs, test_size * 8, pwrite, NULL, SPI_XFER_ONCE);  in main()
412 	rockchip_spi_xfer(bus, cs, test_size * 8, NULL, pread, SPI_XFER_ONCE);  in main()
423 	rockchip_spi_xfer(bus, cs, test_size * 8, pwrite, pread, SPI_XFER_ONCE);  in main()
434 	rockchip_spi_write_then_read(bus, cs, pwrite, 1, NULL, pread, test_size);  in main()