24 static inline u32 bcm53xxspi_read(struct bcm53xxspi *b53spi, u16 offset)  in bcm53xxspi_read()  argument
26 	return bcma_read32(b53spi->core, offset);  in bcm53xxspi_read()
29 static inline void bcm53xxspi_write(struct bcm53xxspi *b53spi, u16 offset,  in bcm53xxspi_write()  argument
32 	bcma_write32(b53spi->core, offset, value);  in bcm53xxspi_write()
41 static int bcm53xxspi_wait(struct bcm53xxspi *b53spi, unsigned int timeout_ms)  in bcm53xxspi_wait()  argument
49 		tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_SPCR2);  in bcm53xxspi_wait()
61 		tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_MSPI_STATUS);  in bcm53xxspi_wait()
63 			bcm53xxspi_write(b53spi, B53SPI_MSPI_MSPI_STATUS, 0);  in bcm53xxspi_wait()
72 	bcm53xxspi_write(b53spi, B53SPI_MSPI_MSPI_STATUS, 0);  in bcm53xxspi_wait()
79 static void bcm53xxspi_buf_write(struct bcm53xxspi *b53spi, u8 *w_buf,  in bcm53xxspi_buf_write()  argument
87 		bcm53xxspi_write(b53spi, B53SPI_MSPI_TXRAM + 4 * (i * 2),  in bcm53xxspi_buf_write()
98 		bcm53xxspi_write(b53spi, B53SPI_MSPI_CDRAM + 4 * i, tmp);  in bcm53xxspi_buf_write()
102 	bcm53xxspi_write(b53spi, B53SPI_MSPI_NEWQP, 0);  in bcm53xxspi_buf_write()
103 	bcm53xxspi_write(b53spi, B53SPI_MSPI_ENDQP, len - 1);  in bcm53xxspi_buf_write()
106 		bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 1);  in bcm53xxspi_buf_write()
109 	tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_SPCR2);  in bcm53xxspi_buf_write()
113 	bcm53xxspi_write(b53spi, B53SPI_MSPI_SPCR2, tmp);  in bcm53xxspi_buf_write()
116 	bcm53xxspi_wait(b53spi, bcm53xxspi_calc_timeout(len));  in bcm53xxspi_buf_write()
119 		bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 0);  in bcm53xxspi_buf_write()
121 	b53spi->read_offset = len;  in bcm53xxspi_buf_write()
124 static void bcm53xxspi_buf_read(struct bcm53xxspi *b53spi, u8 *r_buf,  in bcm53xxspi_buf_read()  argument
130 	for (i = 0; i < b53spi->read_offset + len; i++) {  in bcm53xxspi_buf_read()
133 		if (!cont && i == b53spi->read_offset + len - 1)  in bcm53xxspi_buf_read()
137 		bcm53xxspi_write(b53spi, B53SPI_MSPI_CDRAM + 4 * i, tmp);  in bcm53xxspi_buf_read()
141 	bcm53xxspi_write(b53spi, B53SPI_MSPI_NEWQP, 0);  in bcm53xxspi_buf_read()
142 	bcm53xxspi_write(b53spi, B53SPI_MSPI_ENDQP,  in bcm53xxspi_buf_read()
143 			 b53spi->read_offset + len - 1);  in bcm53xxspi_buf_read()
146 		bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 1);  in bcm53xxspi_buf_read()
149 	tmp = bcm53xxspi_read(b53spi, B53SPI_MSPI_SPCR2);  in bcm53xxspi_buf_read()
153 	bcm53xxspi_write(b53spi, B53SPI_MSPI_SPCR2, tmp);  in bcm53xxspi_buf_read()
156 	bcm53xxspi_wait(b53spi, bcm53xxspi_calc_timeout(len));  in bcm53xxspi_buf_read()
159 		bcm53xxspi_write(b53spi, B53SPI_MSPI_WRITE_LOCK, 0);  in bcm53xxspi_buf_read()
162 		int offset = b53spi->read_offset + i;  in bcm53xxspi_buf_read()
165 		r_buf[i] = (u8)bcm53xxspi_read(b53spi, B53SPI_MSPI_RXRAM + 4 * (1 + offset * 2));  in bcm53xxspi_buf_read()
168 	b53spi->read_offset = 0;  in bcm53xxspi_buf_read()
175 	struct bcm53xxspi *b53spi = spi_master_get_devdata(master);  in bcm53xxspi_transfer_one()  local
186 			bcm53xxspi_buf_write(b53spi, buf, to_write, cont);  in bcm53xxspi_transfer_one()
196 			size_t to_read = min_t(size_t, 16 - b53spi->read_offset,  in bcm53xxspi_transfer_one()
200 			bcm53xxspi_buf_read(b53spi, buf, to_read, cont);  in bcm53xxspi_transfer_one()
225 	struct bcm53xxspi *b53spi;  in bcm53xxspi_bcma_probe()  local
234 	master = spi_alloc_master(&core->dev, sizeof(*b53spi));  in bcm53xxspi_bcma_probe()
238 	b53spi = spi_master_get_devdata(master);  in bcm53xxspi_bcma_probe()
239 	b53spi->master = master;  in bcm53xxspi_bcma_probe()
240 	b53spi->core = core;  in bcm53xxspi_bcma_probe()
244 	bcma_set_drvdata(core, b53spi);  in bcm53xxspi_bcma_probe()