bcm47xx: add support for bcma bus

This patch add support for the bcma bus. Broadcom uses only Mips 74K
CPUs on the new SoC and on the old ons using ssb bus there are no Mips
74K CPUs.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/arch/mips/bcm47xx/serial.c b/arch/mips/bcm47xx/serial.c
index fcef68836979..57981e4fe2bc 100644
--- a/arch/mips/bcm47xx/serial.c
+++ b/arch/mips/bcm47xx/serial.c
@@ -47,6 +47,31 @@ static int __init uart8250_init_ssb(void)
 }
 #endif
 
+#ifdef CONFIG_BCM47XX_BCMA
+static int __init uart8250_init_bcma(void)
+{
+	int i;
+	struct bcma_drv_cc *cc = &(bcm47xx_bus.bcma.bus.drv_cc);
+
+	memset(&uart8250_data, 0,  sizeof(uart8250_data));
+
+	for (i = 0; i < cc->nr_serial_ports; i++) {
+		struct plat_serial8250_port *p = &(uart8250_data[i]);
+		struct bcma_serial_port *bcma_port;
+		bcma_port = &(cc->serial_ports[i]);
+
+		p->mapbase = (unsigned int) bcma_port->regs;
+		p->membase = (void *) bcma_port->regs;
+		p->irq = bcma_port->irq + 2;
+		p->uartclk = bcma_port->baud_base;
+		p->regshift = bcma_port->reg_shift;
+		p->iotype = UPIO_MEM;
+		p->flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+	}
+	return platform_device_register(&uart8250_device);
+}
+#endif
+
 static int __init uart8250_init(void)
 {
 	switch (bcm47xx_bus_type) {
@@ -54,6 +79,10 @@ static int __init uart8250_init(void)
 	case BCM47XX_BUS_TYPE_SSB:
 		return uart8250_init_ssb();
 #endif
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		return uart8250_init_bcma();
+#endif
 	}
 	return -EINVAL;
 }