init android origin source code

1 files changed, 157 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/drivers/bcma/driver_chipcommon.c b/ANDROID_3.4.5/drivers/bcma/driver_chipcommon.c
new file mode 100644
index 00000000..e9f1b3fd
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/bcma/driver_chipcommon.c
@@ -0,0 +1,157 @@
+/*
+ * Broadcom specific AMBA
+ * ChipCommon core driver
+ *
+ * Copyright 2005, Broadcom Corporation
+ * Copyright 2006, 2007, Michael Buesch <m@bues.ch>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcma_private.h"
+#include <linux/export.h>
+#include <linux/bcma/bcma.h>
+
+static inline u32 bcma_cc_write32_masked(struct bcma_drv_cc *cc, u16 offset,
+					 u32 mask, u32 value)
+{
+	value &= mask;
+	value |= bcma_cc_read32(cc, offset) & ~mask;
+	bcma_cc_write32(cc, offset, value);
+
+	return value;
+}
+
+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);
+	if (cc->core->id.rev >= 35)
+		cc->capabilities_ext = bcma_cc_read32(cc, BCMA_CC_CAP_EXT);
+
+	if (cc->core->id.rev >= 20) {
+		bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, 0);
+		bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, 0);
+	}
+
+	if (cc->capabilities & BCMA_CC_CAP_PMU)
+		bcma_pmu_init(cc);
+	if (cc->capabilities & BCMA_CC_CAP_PCTL)
+		pr_err("Power control not implemented!\n");
+
+	if (cc->core->id.rev >= 16) {
+		if (cc->core->bus->sprom.leddc_on_time &&
+		    cc->core->bus->sprom.leddc_off_time) {
+			leddc_on = cc->core->bus->sprom.leddc_on_time;
+			leddc_off = cc->core->bus->sprom.leddc_off_time;
+		}
+		bcma_cc_write32(cc, BCMA_CC_GPIOTIMER,
+			((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 */
+void bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks)
+{
+	/* instant NMI */
+	bcma_cc_write32(cc, BCMA_CC_WATCHDOG, ticks);
+}
+
+void bcma_chipco_irq_mask(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+	bcma_cc_write32_masked(cc, BCMA_CC_IRQMASK, mask, value);
+}
+
+u32 bcma_chipco_irq_status(struct bcma_drv_cc *cc, u32 mask)
+{
+	return bcma_cc_read32(cc, BCMA_CC_IRQSTAT) & mask;
+}
+
+u32 bcma_chipco_gpio_in(struct bcma_drv_cc *cc, u32 mask)
+{
+	return bcma_cc_read32(cc, BCMA_CC_GPIOIN) & mask;
+}
+
+u32 bcma_chipco_gpio_out(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUT, mask, value);
+}
+
+u32 bcma_chipco_gpio_outen(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOOUTEN, mask, value);
+}
+
+u32 bcma_chipco_gpio_control(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOCTL, mask, value);
+}
+EXPORT_SYMBOL_GPL(bcma_chipco_gpio_control);
+
+u32 bcma_chipco_gpio_intmask(struct bcma_drv_cc *cc, u32 mask, u32 value)
+{
+	return bcma_cc_write32_masked(cc, BCMA_CC_GPIOIRQ, mask, value);
+}
+
+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 */