#include "bcma_private.h"
#include <linux/bcma/bcma.h>
-static void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
- u32 offset, u32 mask, u32 set)
+static u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset)
{
- u32 value;
+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
+ bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
+ return bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA);
+}
- bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
+void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value)
+{
+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
+ bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, value);
+}
+EXPORT_SYMBOL_GPL(bcma_chipco_pll_write);
+
+void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
+ u32 set)
+{
+ bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
+ bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
+ bcma_cc_maskset32(cc, BCMA_CC_PLLCTL_DATA, mask, set);
+}
+EXPORT_SYMBOL_GPL(bcma_chipco_pll_maskset);
+
+void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
+ u32 offset, u32 mask, u32 set)
+{
bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
- value = bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
- value &= mask;
- value |= set;
- bcma_cc_write32(cc, BCMA_CC_CHIPCTL_DATA, value);
- bcma_cc_read32(cc, BCMA_CC_CHIPCTL_DATA);
+ bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL_DATA, mask, set);
+}
+EXPORT_SYMBOL_GPL(bcma_chipco_chipctl_maskset);
+
+void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
+ u32 set)
+{
+ bcma_cc_write32(cc, BCMA_CC_REGCTL_ADDR, offset);
+ bcma_cc_read32(cc, BCMA_CC_REGCTL_ADDR);
+ bcma_cc_maskset32(cc, BCMA_CC_REGCTL_DATA, mask, set);
}
+EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset);
static void bcma_pmu_pll_init(struct bcma_drv_cc *cc)
{
}
}
+/* Disable to allow reading SPROM. Don't know the adventages of enabling it. */
+void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable)
+{
+ struct bcma_bus *bus = cc->core->bus;
+ u32 val;
+
+ val = bcma_cc_read32(cc, BCMA_CC_CHIPCTL);
+ if (enable) {
+ val |= BCMA_CHIPCTL_4331_EXTPA_EN;
+ if (bus->chipinfo.pkg == 9 || bus->chipinfo.pkg == 11)
+ val |= BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
+ } else {
+ val &= ~BCMA_CHIPCTL_4331_EXTPA_EN;
+ val &= ~BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
+ }
+ bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val);
+}
+
void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
{
struct bcma_bus *bus = cc->core->bus;
bcma_chipco_chipctl_maskset(cc, 0, ~0, 0x7);
break;
case 0x4331:
- pr_err("Enabling Ext PA lines not implemented\n");
+ /* BCM4331 workaround is SPROM-related, we put it in sprom.c */
break;
case 43224:
if (bus->chipinfo.rev == 0) {
bcma_pmu_swreg_init(cc);
bcma_pmu_workarounds(cc);
}
+
+u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc)
+{
+ struct bcma_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4716:
+ case 0x4748:
+ case 47162:
+ case 0x4313:
+ case 0x5357:
+ case 0x4749:
+ case 53572:
+ /* always 20Mhz */
+ return 20000 * 1000;
+ case 0x5356:
+ case 0x5300:
+ /* always 25Mhz */
+ return 25000 * 1000;
+ default:
+ pr_warn("No ALP clock specified for %04X device, "
+ "pmu rev. %d, using default %d Hz\n",
+ bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK);
+ }
+ return BCMA_CC_PMU_ALP_CLOCK;
+}
+
+/* Find the output of the "m" pll divider given pll controls that start with
+ * pllreg "pll0" i.e. 12 for main 6 for phy, 0 for misc.
+ */
+static u32 bcma_pmu_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m)
+{
+ u32 tmp, div, ndiv, p1, p2, fc;
+ struct bcma_bus *bus = cc->core->bus;
+
+ BUG_ON((pll0 & 3) || (pll0 > BCMA_CC_PMU4716_MAINPLL_PLL0));
+
+ BUG_ON(!m || m > 4);
+
+ if (bus->chipinfo.id == 0x5357 || bus->chipinfo.id == 0x4749) {
+ /* Detect failure in clock setting */
+ tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
+ if (tmp & 0x40000)
+ return 133 * 1000000;
+ }
+
+ tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_P1P2_OFF);
+ p1 = (tmp & BCMA_CC_PPL_P1_MASK) >> BCMA_CC_PPL_P1_SHIFT;
+ p2 = (tmp & BCMA_CC_PPL_P2_MASK) >> BCMA_CC_PPL_P2_SHIFT;
+
+ tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_M14_OFF);
+ div = (tmp >> ((m - 1) * BCMA_CC_PPL_MDIV_WIDTH)) &
+ BCMA_CC_PPL_MDIV_MASK;
+
+ tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_NM5_OFF);
+ ndiv = (tmp & BCMA_CC_PPL_NDIV_MASK) >> BCMA_CC_PPL_NDIV_SHIFT;
+
+ /* Do calculation in Mhz */
+ fc = bcma_pmu_alp_clock(cc) / 1000000;
+ fc = (p1 * ndiv * fc) / p2;
+
+ /* Return clock in Hertz */
+ return (fc / div) * 1000000;
+}
+
+/* query bus clock frequency for PMU-enabled chipcommon */
+u32 bcma_pmu_get_clockcontrol(struct bcma_drv_cc *cc)
+{
+ struct bcma_bus *bus = cc->core->bus;
+
+ switch (bus->chipinfo.id) {
+ case 0x4716:
+ case 0x4748:
+ case 47162:
+ return bcma_pmu_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0,
+ BCMA_CC_PMU5_MAINPLL_SSB);
+ case 0x5356:
+ return bcma_pmu_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0,
+ BCMA_CC_PMU5_MAINPLL_SSB);
+ case 0x5357:
+ case 0x4749:
+ return bcma_pmu_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0,
+ BCMA_CC_PMU5_MAINPLL_SSB);
+ case 0x5300:
+ return bcma_pmu_clock(cc, BCMA_CC_PMU4706_MAINPLL_PLL0,
+ BCMA_CC_PMU5_MAINPLL_SSB);
+ case 53572:
+ return 75000000;
+ default:
+ pr_warn("No backplane clock specified for %04X device, "
+ "pmu rev. %d, using default %d Hz\n",
+ bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK);
+ }
+ return BCMA_CC_PMU_HT_CLOCK;
+}
+
+/* query cpu clock frequency for PMU-enabled chipcommon */
+u32 bcma_pmu_get_clockcpu(struct bcma_drv_cc *cc)
+{
+ struct bcma_bus *bus = cc->core->bus;
+
+ if (bus->chipinfo.id == 53572)
+ return 300000000;
+
+ if (cc->pmu.rev >= 5) {
+ u32 pll;
+ switch (bus->chipinfo.id) {
+ case 0x5356:
+ pll = BCMA_CC_PMU5356_MAINPLL_PLL0;
+ break;
+ case 0x5357:
+ case 0x4749:
+ pll = BCMA_CC_PMU5357_MAINPLL_PLL0;
+ break;
+ default:
+ pll = BCMA_CC_PMU4716_MAINPLL_PLL0;
+ break;
+ }
+
+ /* TODO: if (bus->chipinfo.id == 0x5300)
+ return si_4706_pmu_clock(sih, osh, cc, PMU4706_MAINPLL_PLL0, PMU5_MAINPLL_CPU); */
+ return bcma_pmu_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU);
+ }
+
+ return bcma_pmu_get_clockcontrol(cc);
+}
projects / ~andy / linux / blobdiff