From b3c47afbf54d86daa0473895e8ca9e8b663f5c1a Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Tue, 19 Jan 2016 08:45:26 +0100 Subject: bcma: support PMU present as separated bus core MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On recent Broadcom chipsets PMU is present as separated core and it can't be accessed using ChipCommon anymore as it fails with e.g.: [ 0.000577] Unhandled fault: external abort on non-linefetch (0x1008) at 0xf1000604 Solve it by using a new (PMU) core pointer set to ChipCommon or PMU depending on the hardware capabilities. Signed-off-by: Rafał Miłecki Signed-off-by: Kalle Valo --- include/linux/bcma/bcma_driver_chipcommon.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'include/linux/bcma') diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h index 96d8d56f240f..700d0c6f7480 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -217,6 +217,11 @@ #define BCMA_CC_CLKDIV_JTAG_SHIFT 8 #define BCMA_CC_CLKDIV_UART 0x000000FF #define BCMA_CC_CAP_EXT 0x00AC /* Capabilities */ +#define BCMA_CC_CAP_EXT_SECI_PRESENT 0x00000001 +#define BCMA_CC_CAP_EXT_GSIO_PRESENT 0x00000002 +#define BCMA_CC_CAP_EXT_GCI_PRESENT 0x00000004 +#define BCMA_CC_CAP_EXT_SECI_PUART_PRESENT 0x00000008 /* UART present */ +#define BCMA_CC_CAP_EXT_AOB_PRESENT 0x00000040 #define BCMA_CC_PLLONDELAY 0x00B0 /* Rev >= 4 only */ #define BCMA_CC_FREFSELDELAY 0x00B4 /* Rev >= 4 only */ #define BCMA_CC_SLOWCLKCTL 0x00B8 /* 6 <= Rev <= 9 only */ @@ -566,6 +571,7 @@ * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU) */ struct bcma_chipcommon_pmu { + struct bcma_device *core; /* Can be separated core or just ChipCommon one */ u8 rev; /* PMU revision */ u32 crystalfreq; /* The active crystal frequency (in kHz) */ }; @@ -660,6 +666,19 @@ struct bcma_drv_cc_b { #define bcma_cc_maskset32(cc, offset, mask, set) \ bcma_cc_write32(cc, offset, (bcma_cc_read32(cc, offset) & (mask)) | (set)) +/* PMU registers access */ +#define bcma_pmu_read32(cc, offset) \ + bcma_read32((cc)->pmu.core, offset) +#define bcma_pmu_write32(cc, offset, val) \ + bcma_write32((cc)->pmu.core, offset, val) + +#define bcma_pmu_mask32(cc, offset, mask) \ + bcma_pmu_write32(cc, offset, bcma_pmu_read32(cc, offset) & (mask)) +#define bcma_pmu_set32(cc, offset, set) \ + bcma_pmu_write32(cc, offset, bcma_pmu_read32(cc, offset) | (set)) +#define bcma_pmu_maskset32(cc, offset, mask, set) \ + bcma_pmu_write32(cc, offset, (bcma_pmu_read32(cc, offset) & (mask)) | (set)) + extern u32 bcma_chipco_watchdog_timer_set(struct bcma_drv_cc *cc, u32 ticks); extern u32 bcma_chipco_get_alp_clock(struct bcma_drv_cc *cc); -- cgit v1.2.3-58-ga151