54 static void hspi_write(struct hspi_priv *hspi, int reg, u32 val)  in hspi_write()  argument
56 	iowrite32(val, hspi->addr + reg);  in hspi_write()
59 static u32 hspi_read(struct hspi_priv *hspi, int reg)  in hspi_read()  argument
61 	return ioread32(hspi->addr + reg);  in hspi_read()
64 static void hspi_bit_set(struct hspi_priv *hspi, int reg, u32 mask, u32 set)  in hspi_bit_set()  argument
66 	u32 val = hspi_read(hspi, reg);  in hspi_bit_set()
71 	hspi_write(hspi, reg, val);  in hspi_bit_set()
77 static int hspi_status_check_timeout(struct hspi_priv *hspi, u32 mask, u32 val)  in hspi_status_check_timeout()  argument
82 		if ((mask & hspi_read(hspi, SPSR)) == val)  in hspi_status_check_timeout()
88 	dev_err(hspi->dev, "timeout\n");  in hspi_status_check_timeout()
96 #define hspi_hw_cs_enable(hspi)		hspi_hw_cs_ctrl(hspi, 0)  argument
97 #define hspi_hw_cs_disable(hspi)	hspi_hw_cs_ctrl(hspi, 1)  argument
98 static void hspi_hw_cs_ctrl(struct hspi_priv *hspi, int hi)  in hspi_hw_cs_ctrl()  argument
100 	hspi_bit_set(hspi, SPSCR, (1 << 6), (hi) << 6);  in hspi_hw_cs_ctrl()
103 static void hspi_hw_setup(struct hspi_priv *hspi,  in hspi_hw_setup()  argument
108 	struct device *dev = hspi->dev;  in hspi_hw_setup()
119 		rate = clk_get_rate(hspi->clk);  in hspi_hw_setup()
146 	hspi_write(hspi, SPCR, spcr);  in hspi_hw_setup()
147 	hspi_write(hspi, SPSR, 0x0);  in hspi_hw_setup()
148 	hspi_write(hspi, SPSCR, 0x21);	/* master mode / CS control */  in hspi_hw_setup()
154 	struct hspi_priv *hspi = spi_master_get_devdata(master);  in hspi_transfer_one_message()  local
162 	dev_dbg(hspi->dev, "%s\n", __func__);  in hspi_transfer_one_message()
169 			hspi_hw_setup(hspi, msg, t);  in hspi_transfer_one_message()
170 			hspi_hw_cs_enable(hspi);  in hspi_transfer_one_message()
178 			ret = hspi_status_check_timeout(hspi, 0x1, 0);  in hspi_transfer_one_message()
186 			hspi_write(hspi, SPTBR, tx);  in hspi_transfer_one_message()
189 			ret = hspi_status_check_timeout(hspi, 0x4, 0x4);  in hspi_transfer_one_message()
193 			rx = hspi_read(hspi, SPRBR);  in hspi_transfer_one_message()
206 			hspi_hw_cs_disable(hspi);  in hspi_transfer_one_message()
214 		hspi_hw_cs_disable(hspi);  in hspi_transfer_one_message()
225 	struct hspi_priv *hspi;  in hspi_probe()  local
236 	master = spi_alloc_master(&pdev->dev, sizeof(*hspi));  in hspi_probe()
249 	hspi = spi_master_get_devdata(master);  in hspi_probe()
250 	platform_set_drvdata(pdev, hspi);  in hspi_probe()
253 	hspi->master	= master;  in hspi_probe()
254 	hspi->dev	= &pdev->dev;  in hspi_probe()
255 	hspi->clk	= clk;  in hspi_probe()
256 	hspi->addr	= devm_ioremap(hspi->dev,  in hspi_probe()
258 	if (!hspi->addr) {  in hspi_probe()
293 	struct hspi_priv *hspi = platform_get_drvdata(pdev);  in hspi_remove()  local
297 	clk_put(hspi->clk);  in hspi_remove()