X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fbcma%2Fdriver_chipcommon.c;h=47cce9d696306f28f8f6d9221e73b0f863df7f7e;hb=c28cfd60e4ec3f494b73ef7d6c661f5f491cd84f;hp=851e05bc948afea6740d5b590e26c1320654c6a8;hpb=455ce9d8410d381f56a1676449a723ca1985b369;p=pandora-kernel.git

diff --git a/drivers/bcma/driver_chipcommon.c b/drivers/bcma/driver_chipcommon.c
index 851e05bc948a..47cce9d69630 100644
--- a/drivers/bcma/driver_chipcommon.c
+++ b/drivers/bcma/driver_chipcommon.c
@@ -26,6 +26,9 @@ void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
 	u32 leddc_on = 10;
 	u32 leddc_off = 90;
 
+	if (cc->setup_done)
+		return;
+
 	if (cc->core->id.rev >= 11)
 		cc->status = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
 	cc->capabilities = bcma_cc_read32(cc, BCMA_CC_CAP);
@@ -52,6 +55,8 @@ void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
 			((leddc_on << BCMA_CC_GPIOTIMER_ONTIME_SHIFT) |
 			 (leddc_off << BCMA_CC_GPIOTIMER_OFFTIME_SHIFT)));
 	}
+
+	cc->setup_done = true;
 }
 
 /* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
@@ -101,3 +106,51 @@ u32 bcma_chipco_gpio_polarity(struct bcma_drv_cc *cc, u32 mask, u32 value)
 {
 	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOPOL, mask, value);
 }
+
+#ifdef CONFIG_BCMA_DRIVER_MIPS
+void bcma_chipco_serial_init(struct bcma_drv_cc *cc)
+{
+	unsigned int irq;
+	u32 baud_base;
+	u32 i;
+	unsigned int ccrev = cc->core->id.rev;
+	struct bcma_serial_port *ports = cc->serial_ports;
+
+	if (ccrev >= 11 && ccrev != 15) {
+		/* Fixed ALP clock */
+		baud_base = bcma_pmu_alp_clock(cc);
+		if (ccrev >= 21) {
+			/* Turn off UART clock before switching clocksource. */
+			bcma_cc_write32(cc, BCMA_CC_CORECTL,
+				       bcma_cc_read32(cc, BCMA_CC_CORECTL)
+				       & ~BCMA_CC_CORECTL_UARTCLKEN);
+		}
+		/* Set the override bit so we don't divide it */
+		bcma_cc_write32(cc, BCMA_CC_CORECTL,
+			       bcma_cc_read32(cc, BCMA_CC_CORECTL)
+			       | BCMA_CC_CORECTL_UARTCLK0);
+		if (ccrev >= 21) {
+			/* Re-enable the UART clock. */
+			bcma_cc_write32(cc, BCMA_CC_CORECTL,
+				       bcma_cc_read32(cc, BCMA_CC_CORECTL)
+				       | BCMA_CC_CORECTL_UARTCLKEN);
+		}
+	} else {
+		pr_err("serial not supported on this device ccrev: 0x%x\n",
+		       ccrev);
+		return;
+	}
+
+	irq = bcma_core_mips_irq(cc->core);
+
+	/* Determine the registers of the UARTs */
+	cc->nr_serial_ports = (cc->capabilities & BCMA_CC_CAP_NRUART);
+	for (i = 0; i < cc->nr_serial_ports; i++) {
+		ports[i].regs = cc->core->io_addr + BCMA_CC_UART0_DATA +
+				(i * 256);
+		ports[i].irq = irq;
+		ports[i].baud_base = baud_base;
+		ports[i].reg_shift = 0;
+	}
+}
+#endif /* CONFIG_BCMA_DRIVER_MIPS */