113 static void bcm63xx_hsspi_set_cs(struct bcm63xx_hsspi *bs, unsigned int cs,  in bcm63xx_hsspi_set_cs()  argument
118 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_set_cs()
119 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_cs()
122 	if (active == !(bs->cs_polarity & BIT(cs)))  in bcm63xx_hsspi_set_cs()
125 	__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_cs()
126 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_set_cs()
129 static void bcm63xx_hsspi_set_clk(struct bcm63xx_hsspi *bs,  in bcm63xx_hsspi_set_clk()  argument
135 	reg = DIV_ROUND_UP(2048, DIV_ROUND_UP(bs->speed_hz, hz));  in bcm63xx_hsspi_set_clk()
137 		     bs->regs + HSSPI_PROFILE_CLK_CTRL_REG(profile));  in bcm63xx_hsspi_set_clk()
139 	reg = __raw_readl(bs->regs + HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));  in bcm63xx_hsspi_set_clk()
144 	__raw_writel(reg, bs->regs + HSSPI_PROFILE_SIGNAL_CTRL_REG(profile));  in bcm63xx_hsspi_set_clk()
146 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_set_clk()
148 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_clk()
152 	__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_set_clk()
153 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_set_clk()
158 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);  in bcm63xx_hsspi_do_txrx()  local
166 	bcm63xx_hsspi_set_clk(bs, spi, t->speed_hz);  in bcm63xx_hsspi_do_txrx()
167 	bcm63xx_hsspi_set_cs(bs, spi->chip_select, true);  in bcm63xx_hsspi_do_txrx()
185 		     bs->regs + HSSPI_PROFILE_MODE_CTRL_REG(chip_select));  in bcm63xx_hsspi_do_txrx()
190 		reinit_completion(&bs->done);  in bcm63xx_hsspi_do_txrx()
192 			memcpy_toio(bs->fifo + HSSPI_OPCODE_LEN, tx, curr_step);  in bcm63xx_hsspi_do_txrx()
196 		__raw_writew(opcode | curr_step, bs->fifo);  in bcm63xx_hsspi_do_txrx()
200 			     bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_do_txrx()
206 			     bs->regs + HSSPI_PINGPONG_COMMAND_REG(0));  in bcm63xx_hsspi_do_txrx()
208 		if (wait_for_completion_timeout(&bs->done, HZ) == 0) {  in bcm63xx_hsspi_do_txrx()
209 			dev_err(&bs->pdev->dev, "transfer timed out!\n");  in bcm63xx_hsspi_do_txrx()
214 			memcpy_fromio(rx, bs->fifo, curr_step);  in bcm63xx_hsspi_do_txrx()
226 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);  in bcm63xx_hsspi_setup()  local
229 	reg = __raw_readl(bs->regs +  in bcm63xx_hsspi_setup()
236 	__raw_writel(reg, bs->regs +  in bcm63xx_hsspi_setup()
239 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_setup()
240 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_setup()
243 	if ((reg & GLOBAL_CTRL_CS_POLARITY_MASK) == bs->cs_polarity) {  in bcm63xx_hsspi_setup()
248 		__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_setup()
252 		bs->cs_polarity |= BIT(spi->chip_select);  in bcm63xx_hsspi_setup()
254 		bs->cs_polarity &= ~BIT(spi->chip_select);  in bcm63xx_hsspi_setup()
256 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_setup()
264 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_transfer_one()  local
286 	bcm63xx_hsspi_set_cs(bs, dummy_cs, true);  in bcm63xx_hsspi_transfer_one()
298 			bcm63xx_hsspi_set_cs(bs, spi->chip_select, false);  in bcm63xx_hsspi_transfer_one()
301 	mutex_lock(&bs->bus_mutex);  in bcm63xx_hsspi_transfer_one()
302 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_transfer_one()
304 	reg |= bs->cs_polarity;  in bcm63xx_hsspi_transfer_one()
305 	__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_transfer_one()
306 	mutex_unlock(&bs->bus_mutex);  in bcm63xx_hsspi_transfer_one()
316 	struct bcm63xx_hsspi *bs = (struct bcm63xx_hsspi *)dev_id;  in bcm63xx_hsspi_interrupt()  local
318 	if (__raw_readl(bs->regs + HSSPI_INT_STATUS_MASKED_REG) == 0)  in bcm63xx_hsspi_interrupt()
321 	__raw_writel(HSSPI_INT_CLEAR_ALL, bs->regs + HSSPI_INT_STATUS_REG);  in bcm63xx_hsspi_interrupt()
322 	__raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_interrupt()
324 	complete(&bs->done);  in bcm63xx_hsspi_interrupt()
332 	struct bcm63xx_hsspi *bs;  in bcm63xx_hsspi_probe()  local
387 	master = spi_alloc_master(&pdev->dev, sizeof(*bs));  in bcm63xx_hsspi_probe()
393 	bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_probe()
394 	bs->pdev = pdev;  in bcm63xx_hsspi_probe()
395 	bs->clk = clk;  in bcm63xx_hsspi_probe()
396 	bs->pll_clk = pll_clk;  in bcm63xx_hsspi_probe()
397 	bs->regs = regs;  in bcm63xx_hsspi_probe()
398 	bs->speed_hz = rate;  in bcm63xx_hsspi_probe()
399 	bs->fifo = (u8 __iomem *)(bs->regs + HSSPI_FIFO_REG(0));  in bcm63xx_hsspi_probe()
401 	mutex_init(&bs->bus_mutex);  in bcm63xx_hsspi_probe()
402 	init_completion(&bs->done);  in bcm63xx_hsspi_probe()
425 	__raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_probe()
428 	__raw_writel(HSSPI_INT_CLEAR_ALL, bs->regs + HSSPI_INT_STATUS_REG);  in bcm63xx_hsspi_probe()
431 	reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_probe()
432 	bs->cs_polarity = reg & GLOBAL_CTRL_CS_POLARITY_MASK;  in bcm63xx_hsspi_probe()
434 		     bs->regs + HSSPI_GLOBAL_CTRL_REG);  in bcm63xx_hsspi_probe()
437 			       pdev->name, bs);  in bcm63xx_hsspi_probe()
462 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_remove()  local
465 	__raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);  in bcm63xx_hsspi_remove()
466 	clk_disable_unprepare(bs->pll_clk);  in bcm63xx_hsspi_remove()
467 	clk_disable_unprepare(bs->clk);  in bcm63xx_hsspi_remove()
476 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_suspend()  local
479 	clk_disable_unprepare(bs->pll_clk);  in bcm63xx_hsspi_suspend()
480 	clk_disable_unprepare(bs->clk);  in bcm63xx_hsspi_suspend()
488 	struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);  in bcm63xx_hsspi_resume()  local
491 	ret = clk_prepare_enable(bs->clk);  in bcm63xx_hsspi_resume()
495 	if (bs->pll_clk) {  in bcm63xx_hsspi_resume()
496 		ret = clk_prepare_enable(bs->pll_clk);  in bcm63xx_hsspi_resume()