MIPS: BCM63XX: Add basic BCM6328 support

This includes CPU speed, memory size detection and working UART, but
lacking the appropriate drivers, no support for attached flash.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Maxime Bizon <mbizon@freebox.fr>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Kevin Cernekee <cernekee@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/3951/
Reviewed-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 9 insertions, 3 deletions

diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index bdfbdf95f000..be7498a2a923 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -708,9 +708,15 @@ void __init board_prom_init(void)
         char cfe_version[32];
         u32 val;
 
-        /* read base address of boot chip select (0) */
-        val = bcm_mpi_readl(MPI_CSBASE_REG(0));
-        val &= MPI_CSBASE_BASE_MASK;
+        /* read base address of boot chip select (0)
+         * 6328 does not have MPI but boots from a fixed address
+         */
+        if (BCMCPU_IS_6328())
+                val = 0x18000000;
+        else {
+                val = bcm_mpi_readl(MPI_CSBASE_REG(0));
+                val &= MPI_CSBASE_BASE_MASK;
+        }
         boot_addr = (u8 *)KSEG1ADDR(val);
 
         /* dump cfe version */