drivers/spi/spi-slave-mt27xx.c

100 	u32 reg_val;
102 	reg_val = readl(mdata->base + SPIS_DMA_CFG_REG);
103 	reg_val &= ~RX_DMA_EN;
104 	reg_val &= ~TX_DMA_EN;
105 	writel(reg_val, mdata->base + SPIS_DMA_CFG_REG);
110 	u32 reg_val;
112 	reg_val = readl(mdata->base + SPIS_CFG_REG);
113 	reg_val &= ~SPIS_TX_EN;
114 	reg_val &= ~SPIS_RX_EN;
115 	writel(reg_val, mdata->base + SPIS_CFG_REG);
135 	u32 reg_val;
140 	reg_val = readl(mdata->base + SPIS_CFG_REG);
142 		reg_val |= SPIS_CPHA;
144 		reg_val &= ~SPIS_CPHA;
146 		reg_val |= SPIS_CPOL;
148 		reg_val &= ~SPIS_CPOL;
151 		reg_val &= ~(SPIS_TXMSBF | SPIS_RXMSBF);
153 		reg_val |= SPIS_TXMSBF | SPIS_RXMSBF;
155 	reg_val &= ~SPIS_TX_ENDIAN;
156 	reg_val &= ~SPIS_RX_ENDIAN;
157 	writel(reg_val, mdata->base + SPIS_CFG_REG);
167 	int reg_val, cnt, remainder, ret;
171 	reg_val = readl(mdata->base + SPIS_CFG_REG);
173 		reg_val |= SPIS_RX_EN;
175 		reg_val |= SPIS_TX_EN;
176 	writel(reg_val, mdata->base + SPIS_CFG_REG);
185 		reg_val = 0;
186 		memcpy(&reg_val, xfer->tx_buf + cnt * 4, remainder);
187 		writel(reg_val, mdata->base + SPIS_TX_DATA_REG);
205 	int reg_val, ret;
238 	reg_val = readl(mdata->base + SPIS_CFG_REG);
240 		reg_val |= SPIS_TX_EN;
242 		reg_val |= SPIS_RX_EN;
243 	writel(reg_val, mdata->base + SPIS_CFG_REG);
246 	reg_val = 0;
247 	reg_val |= (xfer->len - 1) & TX_DMA_LEN;
248 	writel(reg_val, mdata->base + SPIS_DMA_CFG_REG);
250 	reg_val = readl(mdata->base + SPIS_DMA_CFG_REG);
252 		reg_val |= TX_DMA_EN;
254 		reg_val |= RX_DMA_EN;
255 	reg_val |= TX_DMA_TRIG_EN;
256 	writel(reg_val, mdata->base + SPIS_DMA_CFG_REG);
301 	u32 reg_val;
303 	reg_val = DMA_DONE_EN | DATA_DONE_EN |
305 	writel(reg_val, mdata->base + SPIS_IRQ_EN_REG);
307 	reg_val = DMA_DONE_MASK | DATA_DONE_MASK |
309 	writel(reg_val, mdata->base + SPIS_IRQ_MASK_REG);
332 	u32 int_status, reg_val, cnt, remainder;
365 			reg_val = readl(mdata->base + SPIS_RX_DATA_REG);
367 			       &reg_val, remainder);