From 908debc8da0d5a91418f71c6a462f62bd2ac69ef Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Sat, 23 Jul 2011 01:20:11 +0200 Subject: bcma: get CPU clock Add method to return the clock of the CPU. This is needed by the arch code to calculate the mips_hpt_frequency. Signed-off-by: Hauke Mehrtens Acked-by: Ralf Baechle Signed-off-by: John W. Linville --- include/linux/bcma/bcma_driver_chipcommon.h | 39 +++++++++++++++++++++++++++++ include/linux/bcma/bcma_driver_mips.h | 2 ++ 2 files changed, 41 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 b9a930e..6083725 100644 --- a/include/linux/bcma/bcma_driver_chipcommon.h +++ b/include/linux/bcma/bcma_driver_chipcommon.h @@ -241,8 +241,47 @@ #define BCMA_CC_SPROM 0x0800 /* SPROM beginning */ #define BCMA_CC_SPROM_PCIE6 0x0830 /* SPROM beginning on PCIe rev >= 6 */ +/* Divider allocation in 4716/47162/5356 */ +#define BCMA_CC_PMU5_MAINPLL_CPU 1 +#define BCMA_CC_PMU5_MAINPLL_MEM 2 +#define BCMA_CC_PMU5_MAINPLL_SSB 3 + +/* PLL usage in 4716/47162 */ +#define BCMA_CC_PMU4716_MAINPLL_PLL0 12 + +/* PLL usage in 5356/5357 */ +#define BCMA_CC_PMU5356_MAINPLL_PLL0 0 +#define BCMA_CC_PMU5357_MAINPLL_PLL0 0 + +/* 4706 PMU */ +#define BCMA_CC_PMU4706_MAINPLL_PLL0 0 + /* ALP clock on pre-PMU chips */ #define BCMA_CC_PMU_ALP_CLOCK 20000000 +/* HT clock for systems with PMU-enabled chipcommon */ +#define BCMA_CC_PMU_HT_CLOCK 80000000 + +/* PMU rev 5 (& 6) */ +#define BCMA_CC_PPL_P1P2_OFF 0 +#define BCMA_CC_PPL_P1_MASK 0x0f000000 +#define BCMA_CC_PPL_P1_SHIFT 24 +#define BCMA_CC_PPL_P2_MASK 0x00f00000 +#define BCMA_CC_PPL_P2_SHIFT 20 +#define BCMA_CC_PPL_M14_OFF 1 +#define BCMA_CC_PPL_MDIV_MASK 0x000000ff +#define BCMA_CC_PPL_MDIV_WIDTH 8 +#define BCMA_CC_PPL_NM5_OFF 2 +#define BCMA_CC_PPL_NDIV_MASK 0xfff00000 +#define BCMA_CC_PPL_NDIV_SHIFT 20 +#define BCMA_CC_PPL_FMAB_OFF 3 +#define BCMA_CC_PPL_MRAT_MASK 0xf0000000 +#define BCMA_CC_PPL_MRAT_SHIFT 28 +#define BCMA_CC_PPL_ABRAT_MASK 0x08000000 +#define BCMA_CC_PPL_ABRAT_SHIFT 27 +#define BCMA_CC_PPL_FDIV_MASK 0x07ffffff +#define BCMA_CC_PPL_PLLCTL_OFF 4 +#define BCMA_CC_PPL_PCHI_OFF 5 +#define BCMA_CC_PPL_PCHI_MASK 0x0000003f /* Data for the PMU, if available. * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU) diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h index 82b3bfd..c004364 100644 --- a/include/linux/bcma/bcma_driver_mips.h +++ b/include/linux/bcma/bcma_driver_mips.h @@ -44,6 +44,8 @@ extern void bcma_core_mips_init(struct bcma_drv_mips *mcore); static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { } #endif +extern u32 bcma_cpu_clock(struct bcma_drv_mips *mcore); + extern unsigned int bcma_core_mips_irq(struct bcma_device *dev); #endif /* LINUX_BCMA_DRIVER_MIPS_H_ */ -- cgit v1.1