From abbb0db2bd9d0bbfad3219604045168c50180539 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sun, 23 Sep 2012 18:04:40 +0000 Subject: ARM: Remove mach-bcmring Remove mach-bcmring as this is no longer maintained or used. Signed-off-by: Christian Daudt Reviewed-by: Jiandong Zheng Acked-by: Will Deacon Signed-off-by: Arnd Bergmann --- arch/arm/mach-bcmring/csp/chipc/chipcHw_init.c | 293 ------------------------- 1 file changed, 293 deletions(-) delete mode 100644 arch/arm/mach-bcmring/csp/chipc/chipcHw_init.c (limited to 'arch/arm/mach-bcmring/csp/chipc/chipcHw_init.c') diff --git a/arch/arm/mach-bcmring/csp/chipc/chipcHw_init.c b/arch/arm/mach-bcmring/csp/chipc/chipcHw_init.c deleted file mode 100644 index 367df75d4bb..00000000000 --- a/arch/arm/mach-bcmring/csp/chipc/chipcHw_init.c +++ /dev/null @@ -1,293 +0,0 @@ -/***************************************************************************** -* Copyright 2003 - 2008 Broadcom Corporation. All rights reserved. -* -* Unless you and Broadcom execute a separate written software license -* agreement governing use of this software, this software is licensed to you -* under the terms of the GNU General Public License version 2, available at -* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). -* -* Notwithstanding the above, under no circumstances may you combine this -* software in any way with any other Broadcom software provided under a -* license other than the GPL, without Broadcom's express prior written -* consent. -*****************************************************************************/ - -/****************************************************************************/ -/** -* @file chipcHw_init.c -* -* @brief Low level CHIPC PLL configuration functions -* -* @note -* -* These routines provide basic PLL controlling functionality only. -*/ -/****************************************************************************/ - -/* ---- Include Files ---------------------------------------------------- */ - -#include -#include -#include - -#include -#include - -#include -#include -/* ---- Private Constants and Types --------------------------------------- */ - -/* - Calculation for NDIV_i to obtain VCO frequency - ----------------------------------------------- - - Freq_vco = Freq_ref * (P2 / P1) * (PLL_NDIV_i + PLL_NDIV_f) - for Freq_vco = VCO_FREQ_MHz - Freq_ref = chipcHw_XTAL_FREQ_Hz - PLL_P1 = PLL_P2 = 1 - and - PLL_NDIV_f = 0 - - We get: - PLL_NDIV_i = Freq_vco / Freq_ref = VCO_FREQ_MHz / chipcHw_XTAL_FREQ_Hz - - Calculation for PLL MDIV to obtain frequency Freq_x for channel x - ----------------------------------------------------------------- - Freq_x = chipcHw_XTAL_FREQ_Hz * PLL_NDIV_i / PLL_MDIV_x = VCO_FREQ_MHz / PLL_MDIV_x - - PLL_MDIV_x = VCO_FREQ_MHz / Freq_x -*/ - -/* ---- Private Variables ------------------------------------------------- */ -/****************************************************************************/ -/** -* @brief Initializes the PLL2 -* -* This function initializes the PLL2 -* -*/ -/****************************************************************************/ -void chipcHw_pll2Enable(uint32_t vcoFreqHz) -{ - uint32_t pllPreDivider2 = 0; - - { - REG_LOCAL_IRQ_SAVE; - pChipcHw->PLLConfig2 = - chipcHw_REG_PLL_CONFIG_D_RESET | - chipcHw_REG_PLL_CONFIG_A_RESET; - - pllPreDivider2 = chipcHw_REG_PLL_PREDIVIDER_POWER_DOWN | - chipcHw_REG_PLL_PREDIVIDER_NDIV_MODE_INTEGER | - (chipcHw_REG_PLL_PREDIVIDER_NDIV_i(vcoFreqHz) << - chipcHw_REG_PLL_PREDIVIDER_NDIV_SHIFT) | - (chipcHw_REG_PLL_PREDIVIDER_P1 << - chipcHw_REG_PLL_PREDIVIDER_P1_SHIFT) | - (chipcHw_REG_PLL_PREDIVIDER_P2 << - chipcHw_REG_PLL_PREDIVIDER_P2_SHIFT); - - /* Enable CHIPC registers to control the PLL */ - pChipcHw->PLLStatus |= chipcHw_REG_PLL_STATUS_CONTROL_ENABLE; - - /* Set pre divider to get desired VCO frequency */ - pChipcHw->PLLPreDivider2 = pllPreDivider2; - /* Set NDIV Frac */ - pChipcHw->PLLDivider2 = chipcHw_REG_PLL_DIVIDER_NDIV_f; - - /* This has to be removed once the default values are fixed for PLL2. */ - pChipcHw->PLLControl12 = 0x38000700; - pChipcHw->PLLControl22 = 0x00000015; - - /* Reset PLL2 */ - if (vcoFreqHz > chipcHw_REG_PLL_CONFIG_VCO_SPLIT_FREQ) { - pChipcHw->PLLConfig2 = chipcHw_REG_PLL_CONFIG_D_RESET | - chipcHw_REG_PLL_CONFIG_A_RESET | - chipcHw_REG_PLL_CONFIG_VCO_1601_3200 | - chipcHw_REG_PLL_CONFIG_POWER_DOWN; - } else { - pChipcHw->PLLConfig2 = chipcHw_REG_PLL_CONFIG_D_RESET | - chipcHw_REG_PLL_CONFIG_A_RESET | - chipcHw_REG_PLL_CONFIG_VCO_800_1600 | - chipcHw_REG_PLL_CONFIG_POWER_DOWN; - } - REG_LOCAL_IRQ_RESTORE; - } - - /* Insert certain amount of delay before deasserting ARESET. */ - udelay(1); - - { - REG_LOCAL_IRQ_SAVE; - /* Remove analog reset and Power on the PLL */ - pChipcHw->PLLConfig2 &= - ~(chipcHw_REG_PLL_CONFIG_A_RESET | - chipcHw_REG_PLL_CONFIG_POWER_DOWN); - - REG_LOCAL_IRQ_RESTORE; - - } - - /* Wait until PLL is locked */ - while (!(pChipcHw->PLLStatus2 & chipcHw_REG_PLL_STATUS_LOCKED)) - ; - - { - REG_LOCAL_IRQ_SAVE; - /* Remove digital reset */ - pChipcHw->PLLConfig2 &= ~chipcHw_REG_PLL_CONFIG_D_RESET; - - REG_LOCAL_IRQ_RESTORE; - } -} - -EXPORT_SYMBOL(chipcHw_pll2Enable); - -/****************************************************************************/ -/** -* @brief Initializes the PLL1 -* -* This function initializes the PLL1 -* -*/ -/****************************************************************************/ -void chipcHw_pll1Enable(uint32_t vcoFreqHz, chipcHw_SPREAD_SPECTRUM_e ssSupport) -{ - uint32_t pllPreDivider = 0; - - { - REG_LOCAL_IRQ_SAVE; - - pChipcHw->PLLConfig = - chipcHw_REG_PLL_CONFIG_D_RESET | - chipcHw_REG_PLL_CONFIG_A_RESET; - /* Setting VCO frequency */ - if (ssSupport == chipcHw_SPREAD_SPECTRUM_ALLOW) { - pllPreDivider = - chipcHw_REG_PLL_PREDIVIDER_NDIV_MODE_MASH_1_8 | - ((chipcHw_REG_PLL_PREDIVIDER_NDIV_i(vcoFreqHz) - - 1) << chipcHw_REG_PLL_PREDIVIDER_NDIV_SHIFT) | - (chipcHw_REG_PLL_PREDIVIDER_P1 << - chipcHw_REG_PLL_PREDIVIDER_P1_SHIFT) | - (chipcHw_REG_PLL_PREDIVIDER_P2 << - chipcHw_REG_PLL_PREDIVIDER_P2_SHIFT); - } else { - pllPreDivider = chipcHw_REG_PLL_PREDIVIDER_POWER_DOWN | - chipcHw_REG_PLL_PREDIVIDER_NDIV_MODE_INTEGER | - (chipcHw_REG_PLL_PREDIVIDER_NDIV_i(vcoFreqHz) << - chipcHw_REG_PLL_PREDIVIDER_NDIV_SHIFT) | - (chipcHw_REG_PLL_PREDIVIDER_P1 << - chipcHw_REG_PLL_PREDIVIDER_P1_SHIFT) | - (chipcHw_REG_PLL_PREDIVIDER_P2 << - chipcHw_REG_PLL_PREDIVIDER_P2_SHIFT); - } - - /* Enable CHIPC registers to control the PLL */ - pChipcHw->PLLStatus |= chipcHw_REG_PLL_STATUS_CONTROL_ENABLE; - - /* Set pre divider to get desired VCO frequency */ - pChipcHw->PLLPreDivider = pllPreDivider; - /* Set NDIV Frac */ - if (ssSupport == chipcHw_SPREAD_SPECTRUM_ALLOW) { - pChipcHw->PLLDivider = chipcHw_REG_PLL_DIVIDER_M1DIV | - chipcHw_REG_PLL_DIVIDER_NDIV_f_SS; - } else { - pChipcHw->PLLDivider = chipcHw_REG_PLL_DIVIDER_M1DIV | - chipcHw_REG_PLL_DIVIDER_NDIV_f; - } - - /* Reset PLL1 */ - if (vcoFreqHz > chipcHw_REG_PLL_CONFIG_VCO_SPLIT_FREQ) { - pChipcHw->PLLConfig = chipcHw_REG_PLL_CONFIG_D_RESET | - chipcHw_REG_PLL_CONFIG_A_RESET | - chipcHw_REG_PLL_CONFIG_VCO_1601_3200 | - chipcHw_REG_PLL_CONFIG_POWER_DOWN; - } else { - pChipcHw->PLLConfig = chipcHw_REG_PLL_CONFIG_D_RESET | - chipcHw_REG_PLL_CONFIG_A_RESET | - chipcHw_REG_PLL_CONFIG_VCO_800_1600 | - chipcHw_REG_PLL_CONFIG_POWER_DOWN; - } - - REG_LOCAL_IRQ_RESTORE; - - /* Insert certain amount of delay before deasserting ARESET. */ - udelay(1); - - { - REG_LOCAL_IRQ_SAVE; - /* Remove analog reset and Power on the PLL */ - pChipcHw->PLLConfig &= - ~(chipcHw_REG_PLL_CONFIG_A_RESET | - chipcHw_REG_PLL_CONFIG_POWER_DOWN); - REG_LOCAL_IRQ_RESTORE; - } - - /* Wait until PLL is locked */ - while (!(pChipcHw->PLLStatus & chipcHw_REG_PLL_STATUS_LOCKED) - || !(pChipcHw-> - PLLStatus2 & chipcHw_REG_PLL_STATUS_LOCKED)) - ; - - /* Remove digital reset */ - { - REG_LOCAL_IRQ_SAVE; - pChipcHw->PLLConfig &= ~chipcHw_REG_PLL_CONFIG_D_RESET; - REG_LOCAL_IRQ_RESTORE; - } - } -} - -EXPORT_SYMBOL(chipcHw_pll1Enable); - -/****************************************************************************/ -/** -* @brief Initializes the chipc module -* -* This function initializes the PLLs and core system clocks -* -*/ -/****************************************************************************/ - -void chipcHw_Init(chipcHw_INIT_PARAM_t *initParam /* [ IN ] Misc chip initialization parameter */ - ) { -#if !(defined(__KERNEL__) && !defined(STANDALONE)) - delay_init(); -#endif - - /* Do not program PLL, when warm reset */ - if (!(chipcHw_getStickyBits() & chipcHw_REG_STICKY_CHIP_WARM_RESET)) { - chipcHw_pll1Enable(initParam->pllVcoFreqHz, - initParam->ssSupport); - chipcHw_pll2Enable(initParam->pll2VcoFreqHz); - } else { - /* Clear sticky bits */ - chipcHw_clearStickyBits(chipcHw_REG_STICKY_CHIP_WARM_RESET); - } - /* Clear sticky bits */ - chipcHw_clearStickyBits(chipcHw_REG_STICKY_CHIP_SOFT_RESET); - - /* Before configuring the ARM clock, atleast we need to make sure BUS clock maintains the proper ratio with ARM clock */ - pChipcHw->ACLKClock = - (pChipcHw-> - ACLKClock & ~chipcHw_REG_ACLKClock_CLK_DIV_MASK) | (initParam-> - armBusRatio & - chipcHw_REG_ACLKClock_CLK_DIV_MASK); - - /* Set various core component frequencies. The order in which this is done is important for some. */ - /* The RTBUS (DDR PHY) is derived from the BUS, and the BUS from the ARM, and VPM needs to know BUS */ - /* frequency to find its ratio with the BUS. Hence we must set the ARM first, followed by the BUS, */ - /* then VPM and RTBUS. */ - - chipcHw_setClockFrequency(chipcHw_CLOCK_ARM, - initParam->busClockFreqHz * - initParam->armBusRatio); - chipcHw_setClockFrequency(chipcHw_CLOCK_BUS, initParam->busClockFreqHz); - chipcHw_setClockFrequency(chipcHw_CLOCK_VPM, - initParam->busClockFreqHz * - initParam->vpmBusRatio); - chipcHw_setClockFrequency(chipcHw_CLOCK_DDR, - initParam->busClockFreqHz * - initParam->ddrBusRatio); - chipcHw_setClockFrequency(chipcHw_CLOCK_RTBUS, - initParam->busClockFreqHz / 2); -} -- cgit v1.2.3