MIPS: Alchemy: Unify Devboard support.

This patch merges support for all DB1xxx and PB1xxx
boards into a single image, along with a new single defconfig
for them.

Run-tested on DB1300 and DB1500.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6577/
Patchwork: https://patchwork.linux-mips.org/patch/6659/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c
index c4141c92bcff..2ca4ee24755b 100644
--- a/drivers/spi/spi-au1550.c
+++ b/drivers/spi/spi-au1550.c
@@ -999,6 +999,15 @@ static int __init au1550_spi_init(void)
          * create memory device with 8 bits dev_devwidth
          * needed for proper byte ordering to spi fifo
          */
+        switch (alchemy_get_cputype()) {
+        case ALCHEMY_CPU_AU1550:
+        case ALCHEMY_CPU_AU1200:
+        case ALCHEMY_CPU_AU1300:
+                break;
+        default:
+                return -ENODEV;
+        }
+
         if (usedma) {
                 ddma_memid = au1xxx_ddma_add_device(&au1550_spi_mem_dbdev);
                 if (!ddma_memid)