108 static void bcm63xx_hsspi_set_cs(struct bcm63xx_hsspi *bs, unsigned cs,  in bcm63xx_hsspi_set_cs()  argument
113 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_set_cs()
114 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_cs()
117 	if (active == !(bs->cs_polarity & BIT(cs)))  in bcm63xx_hsspi_set_cs()
120 	__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_cs()
121 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_set_cs()
124 static void bcm63xx_hsspi_set_clk(struct bcm63xx_hsspi *bs,  in bcm63xx_hsspi_set_clk()  argument
130 	reg = DIV_ROUND_UP(2048, DIV_ROUND_UP(bs->speed_hz, hz));  in bcm63xx_hsspi_set_clk()
132 		     bs->regs + HSSPI_PROFILE_CLK_CTRL_REG(profile));  in bcm63xx_hsspi_set_clk()
134 	reg = __raw_readl(bs->regs + HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));  in bcm63xx_hsspi_set_clk()
139 	__raw_writel(reg, bs->regs + HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));  in bcm63xx_hsspi_set_clk()
141 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_set_clk()
143 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_clk()
147 	__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_clk()
148 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_set_clk()
153 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);  in bcm63xx_hsspi_do_txrx()  local
161 	bcm63xx_hsspi_set_clk(bs, spi, t->speed_hz);  in bcm63xx_hsspi_do_txrx()
162 	bcm63xx_hsspi_set_cs(bs, spi->chip_select, true);  in bcm63xx_hsspi_do_txrx()
177 		     bs->regs + HSSPI_PROFILE_MODE_CTRL_REG(chip_select));  in bcm63xx_hsspi_do_txrx()
182 		reinit_completion(&bs->done);  in bcm63xx_hsspi_do_txrx()
184 			memcpy_toio(bs->fifo + HSSPI_OPCODE_LEN, tx, curr_step);  in bcm63xx_hsspi_do_txrx()
188 		__raw_writew(opcode | curr_step, bs->fifo);  in bcm63xx_hsspi_do_txrx()
192 			     bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_do_txrx()
198 			     bs->regs + HSSPI_PINGPONG_COMMAND_REG(0));  in bcm63xx_hsspi_do_txrx()
200 		if (wait_for_completion_timeout(&bs->done, HZ) == 0) {  in bcm63xx_hsspi_do_txrx()
201 			dev_err(&bs->pdev->dev, "transfer timed out!\n");  in bcm63xx_hsspi_do_txrx()
206 			memcpy_fromio(rx, bs->fifo, curr_step);  in bcm63xx_hsspi_do_txrx()
218 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);  in bcm63xx_hsspi_setup()  local
221 	reg = __raw_readl(bs->regs +  in bcm63xx_hsspi_setup()
228 	__raw_writel(reg, bs->regs +  in bcm63xx_hsspi_setup()
231 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_setup()
232 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_setup()
235 	if ((reg & GLOBAL_CTRL_CS_POLARITY_MASK) == bs->cs_polarity) {  in bcm63xx_hsspi_setup()
240 		__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_setup()
244 		bs->cs_polarity |= BIT(spi->chip_select);  in bcm63xx_hsspi_setup()
246 		bs->cs_polarity &= ~BIT(spi->chip_select);  in bcm63xx_hsspi_setup()
248 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_setup()
256 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_transfer_one()  local
278 	bcm63xx_hsspi_set_cs(bs, dummy_cs, true);  in bcm63xx_hsspi_transfer_one()
291 			bcm63xx_hsspi_set_cs(bs, spi->chip_select, false);  in bcm63xx_hsspi_transfer_one()
294 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_transfer_one()
295 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_transfer_one()
297 	reg |= bs->cs_polarity;  in bcm63xx_hsspi_transfer_one()
298 	__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_transfer_one()
299 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_transfer_one()
309 	struct bcm63xx_hsspi *bs = (struct bcm63xx_hsspi *)dev_id;  in bcm63xx_hsspi_interrupt()  local
311 	if (__raw_readl(bs->regs + HSSPI_INT_STATUS_MASKED_REG) == 0)  in bcm63xx_hsspi_interrupt()
314 	__raw_writel(HSSPI_INT_CLEAR_ALL, bs->regs + HSSPI_INT_STATUS_REG);  in bcm63xx_hsspi_interrupt()
315 	__raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_interrupt()
317 	complete(&bs->done);  in bcm63xx_hsspi_interrupt()
325 	struct bcm63xx_hsspi *bs;  in bcm63xx_hsspi_probe()  local
357 	master = spi_alloc_master(&pdev->dev, sizeof(*bs));  in bcm63xx_hsspi_probe()
363 	bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_probe()
364 	bs->pdev = pdev;  in bcm63xx_hsspi_probe()
365 	bs->clk = clk;  in bcm63xx_hsspi_probe()
366 	bs->regs = regs;  in bcm63xx_hsspi_probe()
367 	bs->speed_hz = rate;  in bcm63xx_hsspi_probe()
368 	bs->fifo = (u8 __iomem *)(bs->regs + HSSPI_FIFO_REG(0));  in bcm63xx_hsspi_probe()
370 	mutex_init(&bs->bus_mutex);  in bcm63xx_hsspi_probe()
371 	init_completion(&bs->done);  in bcm63xx_hsspi_probe()
384 	__raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_probe()
387 	__raw_writel(HSSPI_INT_CLEAR_ALL, bs->regs + HSSPI_INT_STATUS_REG);  in bcm63xx_hsspi_probe()
390 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_probe()
391 	bs->cs_polarity = reg & GLOBAL_CTRL_CS_POLARITY_MASK;  in bcm63xx_hsspi_probe()
393 		     bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_probe()
396 			       pdev->name, bs);  in bcm63xx_hsspi_probe()
419 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_remove()  local
422 	__raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_remove()
423 	clk_disable_unprepare(bs->clk);  in bcm63xx_hsspi_remove()
432 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_suspend()  local
435 	clk_disable_unprepare(bs->clk);  in bcm63xx_hsspi_suspend()
443 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_resume()  local
446 	ret = clk_prepare_enable(bs->clk);  in bcm63xx_hsspi_resume()