46 static void hspi_write(struct hspi_priv *hspi, int reg, u32 val)  in hspi_write()  argument
48 	iowrite32(val, hspi->addr + reg);  in hspi_write()
51 static u32 hspi_read(struct hspi_priv *hspi, int reg)  in hspi_read()  argument
53 	return ioread32(hspi->addr + reg);  in hspi_read()
56 static void hspi_bit_set(struct hspi_priv *hspi, int reg, u32 mask, u32 set)  in hspi_bit_set()  argument
58 	u32 val = hspi_read(hspi, reg);  in hspi_bit_set()
63 	hspi_write(hspi, reg, val);  in hspi_bit_set()
69 static int hspi_status_check_timeout(struct hspi_priv *hspi, u32 mask, u32 val)  in hspi_status_check_timeout()  argument
74 		if ((mask & hspi_read(hspi, SPSR)) == val)  in hspi_status_check_timeout()
80 	dev_err(hspi->dev, "timeout\n");  in hspi_status_check_timeout()
88 #define hspi_hw_cs_enable(hspi)		hspi_hw_cs_ctrl(hspi, 0)  argument
89 #define hspi_hw_cs_disable(hspi)	hspi_hw_cs_ctrl(hspi, 1)  argument
90 static void hspi_hw_cs_ctrl(struct hspi_priv *hspi, int hi)  in hspi_hw_cs_ctrl()  argument
92 	hspi_bit_set(hspi, SPSCR, (1 << 6), (hi) << 6);  in hspi_hw_cs_ctrl()
95 static void hspi_hw_setup(struct hspi_priv *hspi,  in hspi_hw_setup()  argument
100 	struct device *dev = hspi->dev;  in hspi_hw_setup()
111 		rate = clk_get_rate(hspi->clk);  in hspi_hw_setup()
138 	hspi_write(hspi, SPCR, spcr);  in hspi_hw_setup()
139 	hspi_write(hspi, SPSR, 0x0);  in hspi_hw_setup()
140 	hspi_write(hspi, SPSCR, 0x21);	/* master mode / CS control */  in hspi_hw_setup()
146 	struct hspi_priv *hspi = spi_controller_get_devdata(ctlr);  in hspi_transfer_one_message()  local
154 	dev_dbg(hspi->dev, "%s\n", __func__);  in hspi_transfer_one_message()
161 			hspi_hw_setup(hspi, msg, t);  in hspi_transfer_one_message()
162 			hspi_hw_cs_enable(hspi);  in hspi_transfer_one_message()
170 			ret = hspi_status_check_timeout(hspi, 0x1, 0);  in hspi_transfer_one_message()
178 			hspi_write(hspi, SPTBR, tx);  in hspi_transfer_one_message()
181 			ret = hspi_status_check_timeout(hspi, 0x4, 0x4);  in hspi_transfer_one_message()
185 			rx = hspi_read(hspi, SPRBR);  in hspi_transfer_one_message()
197 			hspi_hw_cs_disable(hspi);  in hspi_transfer_one_message()
205 		hspi_hw_cs_disable(hspi);  in hspi_transfer_one_message()
216 	struct hspi_priv *hspi;  in hspi_probe()  local
227 	ctlr = spi_alloc_host(&pdev->dev, sizeof(*hspi));  in hspi_probe()
238 	hspi = spi_controller_get_devdata(ctlr);  in hspi_probe()
239 	platform_set_drvdata(pdev, hspi);  in hspi_probe()
242 	hspi->ctlr	= ctlr;  in hspi_probe()
243 	hspi->dev	= &pdev->dev;  in hspi_probe()
244 	hspi->clk	= clk;  in hspi_probe()
245 	hspi->addr	= devm_ioremap(hspi->dev,  in hspi_probe()
247 	if (!hspi->addr) {  in hspi_probe()
281 	struct hspi_priv *hspi = platform_get_drvdata(pdev);  in hspi_remove()  local
285 	clk_put(hspi->clk);  in hspi_remove()