From: Siva Durga Prasad Paladugu Date: Sat, 11 Aug 2018 08:52:39 +0000 (+0530) Subject: spi: cadence_qspi: Add Octal support X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=77f9d1dde494b3b96ab620372d9952a5beff7a65;p=thirdparty%2Fu-boot.git spi: cadence_qspi: Add Octal support This patch adds Octal read support by setting the octal instruction type in the read instruction register if controller supports it. Signed-off-by: Siva Durga Prasad Paladugu Signed-off-by: Michal Simek --- diff --git a/drivers/spi/cadence_qspi_apb.c b/drivers/spi/cadence_qspi_apb.c index c96476039b1..7b932b695fc 100644 --- a/drivers/spi/cadence_qspi_apb.c +++ b/drivers/spi/cadence_qspi_apb.c @@ -41,6 +41,7 @@ #define CQSPI_INST_TYPE_SINGLE 0 #define CQSPI_INST_TYPE_DUAL 1 #define CQSPI_INST_TYPE_QUAD 2 +#define CQSPI_INST_TYPE_OCTAL 3 #define CQSPI_STIG_DATA_LEN_MAX 8 @@ -646,6 +647,11 @@ int cadence_qspi_apb_indirect_read_setup(struct cadence_spi_platdata *plat, /* Instruction and address at DQ0, data at DQ0-3. */ rd_reg |= CQSPI_INST_TYPE_QUAD << CQSPI_REG_RD_INSTR_TYPE_DATA_LSB; + if (rx_width & SPI_RX_OCTAL) + /* Instruction and address at DQ0, data at DQ0-7. */ + rd_reg |= CQSPI_INST_TYPE_OCTAL << + CQSPI_REG_RD_INSTR_TYPE_DATA_LSB; + /* Get address */ addr_value = cadence_qspi_apb_cmd2addr(&cmdbuf[1], addr_bytes); writel(addr_value, plat->regbase + CQSPI_REG_INDIRECTRDSTARTADDR);