diff options
Diffstat (limited to 'arch/ppc/cpu/mpc83xx/speed.c')
| -rw-r--r-- | arch/ppc/cpu/mpc83xx/speed.c | 549 |
1 files changed, 0 insertions, 549 deletions
diff --git a/arch/ppc/cpu/mpc83xx/speed.c b/arch/ppc/cpu/mpc83xx/speed.c deleted file mode 100644 index bde7e92..0000000 --- a/arch/ppc/cpu/mpc83xx/speed.c +++ /dev/null @@ -1,549 +0,0 @@ -/* - * (C) Copyright 2000-2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <mpc83xx.h> -#include <command.h> -#include <asm/processor.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* ----------------------------------------------------------------- */ - -typedef enum { - _unk, - _off, - _byp, - _x8, - _x4, - _x2, - _x1, - _1x, - _1_5x, - _2x, - _2_5x, - _3x -} mult_t; - -typedef struct { - mult_t core_csb_ratio; - mult_t vco_divider; -} corecnf_t; - -corecnf_t corecnf_tab[] = { - {_byp, _byp}, /* 0x00 */ - {_byp, _byp}, /* 0x01 */ - {_byp, _byp}, /* 0x02 */ - {_byp, _byp}, /* 0x03 */ - {_byp, _byp}, /* 0x04 */ - {_byp, _byp}, /* 0x05 */ - {_byp, _byp}, /* 0x06 */ - {_byp, _byp}, /* 0x07 */ - {_1x, _x2}, /* 0x08 */ - {_1x, _x4}, /* 0x09 */ - {_1x, _x8}, /* 0x0A */ - {_1x, _x8}, /* 0x0B */ - {_1_5x, _x2}, /* 0x0C */ - {_1_5x, _x4}, /* 0x0D */ - {_1_5x, _x8}, /* 0x0E */ - {_1_5x, _x8}, /* 0x0F */ - {_2x, _x2}, /* 0x10 */ - {_2x, _x4}, /* 0x11 */ - {_2x, _x8}, /* 0x12 */ - {_2x, _x8}, /* 0x13 */ - {_2_5x, _x2}, /* 0x14 */ - {_2_5x, _x4}, /* 0x15 */ - {_2_5x, _x8}, /* 0x16 */ - {_2_5x, _x8}, /* 0x17 */ - {_3x, _x2}, /* 0x18 */ - {_3x, _x4}, /* 0x19 */ - {_3x, _x8}, /* 0x1A */ - {_3x, _x8}, /* 0x1B */ -}; - -/* ----------------------------------------------------------------- */ - -/* - * - */ -int get_clocks(void) -{ - volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR; - u32 pci_sync_in; - u8 spmf; - u8 clkin_div; - u32 sccr; - u32 corecnf_tab_index; - u8 corepll; - u32 lcrr; - - u32 csb_clk; -#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) - u32 tsec1_clk; - u32 tsec2_clk; - u32 usbdr_clk; -#endif -#ifdef CONFIG_MPC834x - u32 usbmph_clk; -#endif - u32 core_clk; - u32 i2c1_clk; -#if !defined(CONFIG_MPC832x) - u32 i2c2_clk; -#endif -#if defined(CONFIG_MPC8315) - u32 tdm_clk; -#endif -#if defined(CONFIG_MPC837x) - u32 sdhc_clk; -#endif - u32 enc_clk; - u32 lbiu_clk; - u32 lclk_clk; - u32 mem_clk; -#if defined(CONFIG_MPC8360) - u32 mem_sec_clk; -#endif -#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) - u32 qepmf; - u32 qepdf; - u32 qe_clk; - u32 brg_clk; -#endif -#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC831x) - u32 pciexp1_clk; - u32 pciexp2_clk; -#endif -#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) - u32 sata_clk; -#endif - - if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im) - return -1; - - clkin_div = ((im->clk.spmr & SPMR_CKID) >> SPMR_CKID_SHIFT); - - if (im->reset.rcwh & HRCWH_PCI_HOST) { -#if defined(CONFIG_83XX_CLKIN) - pci_sync_in = CONFIG_83XX_CLKIN / (1 + clkin_div); -#else - pci_sync_in = 0xDEADBEEF; -#endif - } else { -#if defined(CONFIG_83XX_PCICLK) - pci_sync_in = CONFIG_83XX_PCICLK; -#else - pci_sync_in = 0xDEADBEEF; -#endif - } - - spmf = ((im->reset.rcwl & HRCWL_SPMF) >> HRCWL_SPMF_SHIFT); - csb_clk = pci_sync_in * (1 + clkin_div) * spmf; - - sccr = im->clk.sccr; - -#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) - switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) { - case 0: - tsec1_clk = 0; - break; - case 1: - tsec1_clk = csb_clk; - break; - case 2: - tsec1_clk = csb_clk / 2; - break; - case 3: - tsec1_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_TSEC1CM value */ - return -2; - } - - switch ((sccr & SCCR_USBDRCM) >> SCCR_USBDRCM_SHIFT) { - case 0: - usbdr_clk = 0; - break; - case 1: - usbdr_clk = csb_clk; - break; - case 2: - usbdr_clk = csb_clk / 2; - break; - case 3: - usbdr_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_USBDRCM value */ - return -3; - } -#endif - -#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) - switch ((sccr & SCCR_TSEC2CM) >> SCCR_TSEC2CM_SHIFT) { - case 0: - tsec2_clk = 0; - break; - case 1: - tsec2_clk = csb_clk; - break; - case 2: - tsec2_clk = csb_clk / 2; - break; - case 3: - tsec2_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_TSEC2CM value */ - return -4; - } -#elif defined(CONFIG_MPC8313) - tsec2_clk = tsec1_clk; - - if (!(sccr & SCCR_TSEC1ON)) - tsec1_clk = 0; - if (!(sccr & SCCR_TSEC2ON)) - tsec2_clk = 0; -#endif - -#if defined(CONFIG_MPC834x) - switch ((sccr & SCCR_USBMPHCM) >> SCCR_USBMPHCM_SHIFT) { - case 0: - usbmph_clk = 0; - break; - case 1: - usbmph_clk = csb_clk; - break; - case 2: - usbmph_clk = csb_clk / 2; - break; - case 3: - usbmph_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_USBMPHCM value */ - return -5; - } - - if (usbmph_clk != 0 && usbdr_clk != 0 && usbmph_clk != usbdr_clk) { - /* if USB MPH clock is not disabled and - * USB DR clock is not disabled then - * USB MPH & USB DR must have the same rate - */ - return -6; - } -#endif - switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) { - case 0: - enc_clk = 0; - break; - case 1: - enc_clk = csb_clk; - break; - case 2: - enc_clk = csb_clk / 2; - break; - case 3: - enc_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_ENCCM value */ - return -7; - } - -#if defined(CONFIG_MPC837x) - switch ((sccr & SCCR_SDHCCM) >> SCCR_SDHCCM_SHIFT) { - case 0: - sdhc_clk = 0; - break; - case 1: - sdhc_clk = csb_clk; - break; - case 2: - sdhc_clk = csb_clk / 2; - break; - case 3: - sdhc_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_SDHCCM value */ - return -8; - } -#endif -#if defined(CONFIG_MPC8315) - switch ((sccr & SCCR_TDMCM) >> SCCR_TDMCM_SHIFT) { - case 0: - tdm_clk = 0; - break; - case 1: - tdm_clk = csb_clk; - break; - case 2: - tdm_clk = csb_clk / 2; - break; - case 3: - tdm_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_TDMCM value */ - return -8; - } -#endif - -#if defined(CONFIG_MPC834x) - i2c1_clk = tsec2_clk; -#elif defined(CONFIG_MPC8360) - i2c1_clk = csb_clk; -#elif defined(CONFIG_MPC832x) - i2c1_clk = enc_clk; -#elif defined(CONFIG_MPC831x) - i2c1_clk = enc_clk; -#elif defined(CONFIG_MPC837x) - i2c1_clk = sdhc_clk; -#endif -#if !defined(CONFIG_MPC832x) - i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */ -#endif - -#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC831x) - switch ((sccr & SCCR_PCIEXP1CM) >> SCCR_PCIEXP1CM_SHIFT) { - case 0: - pciexp1_clk = 0; - break; - case 1: - pciexp1_clk = csb_clk; - break; - case 2: - pciexp1_clk = csb_clk / 2; - break; - case 3: - pciexp1_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_PCIEXP1CM value */ - return -9; - } - - switch ((sccr & SCCR_PCIEXP2CM) >> SCCR_PCIEXP2CM_SHIFT) { - case 0: - pciexp2_clk = 0; - break; - case 1: - pciexp2_clk = csb_clk; - break; - case 2: - pciexp2_clk = csb_clk / 2; - break; - case 3: - pciexp2_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_PCIEXP2CM value */ - return -10; - } -#endif - -#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) - switch ((sccr & SCCR_SATA1CM) >> SCCR_SATA1CM_SHIFT) { - case 0: - sata_clk = 0; - break; - case 1: - sata_clk = csb_clk; - break; - case 2: - sata_clk = csb_clk / 2; - break; - case 3: - sata_clk = csb_clk / 3; - break; - default: - /* unkown SCCR_SATACM value */ - return -11; - } -#endif - - lbiu_clk = csb_clk * - (1 + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); - lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT; - switch (lcrr) { - case 2: - case 4: - case 8: - lclk_clk = lbiu_clk / lcrr; - break; - default: - /* unknown lcrr */ - return -12; - } - - mem_clk = csb_clk * - (1 + ((im->reset.rcwl & HRCWL_DDRCM) >> HRCWL_DDRCM_SHIFT)); - corepll = (im->reset.rcwl & HRCWL_COREPLL) >> HRCWL_COREPLL_SHIFT; -#if defined(CONFIG_MPC8360) - mem_sec_clk = csb_clk * (1 + - ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); -#endif - - corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5); - if (corecnf_tab_index > (sizeof(corecnf_tab) / sizeof(corecnf_t))) { - /* corecnf_tab_index is too high, possibly worng value */ - return -11; - } - switch (corecnf_tab[corecnf_tab_index].core_csb_ratio) { - case _byp: - case _x1: - case _1x: - core_clk = csb_clk; - break; - case _1_5x: - core_clk = (3 * csb_clk) / 2; - break; - case _2x: - core_clk = 2 * csb_clk; - break; - case _2_5x: - core_clk = (5 * csb_clk) / 2; - break; - case _3x: - core_clk = 3 * csb_clk; - break; - default: - /* unkown core to csb ratio */ - return -13; - } - -#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) - qepmf = (im->reset.rcwl & HRCWL_CEPMF) >> HRCWL_CEPMF_SHIFT; - qepdf = (im->reset.rcwl & HRCWL_CEPDF) >> HRCWL_CEPDF_SHIFT; - qe_clk = (pci_sync_in * qepmf) / (1 + qepdf); - brg_clk = qe_clk / 2; -#endif - - gd->csb_clk = csb_clk; -#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) - gd->tsec1_clk = tsec1_clk; - gd->tsec2_clk = tsec2_clk; - gd->usbdr_clk = usbdr_clk; -#endif -#if defined(CONFIG_MPC834x) - gd->usbmph_clk = usbmph_clk; -#endif -#if defined(CONFIG_MPC8315) - gd->tdm_clk = tdm_clk; -#endif -#if defined(CONFIG_MPC837x) - gd->sdhc_clk = sdhc_clk; -#endif - gd->core_clk = core_clk; - gd->i2c1_clk = i2c1_clk; -#if !defined(CONFIG_MPC832x) - gd->i2c2_clk = i2c2_clk; -#endif - gd->enc_clk = enc_clk; - gd->lbiu_clk = lbiu_clk; - gd->lclk_clk = lclk_clk; - gd->mem_clk = mem_clk; -#if defined(CONFIG_MPC8360) - gd->mem_sec_clk = mem_sec_clk; -#endif -#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) - gd->qe_clk = qe_clk; - gd->brg_clk = brg_clk; -#endif -#if defined(CONFIG_MPC837x) - gd->pciexp1_clk = pciexp1_clk; - gd->pciexp2_clk = pciexp2_clk; -#endif -#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) - gd->sata_clk = sata_clk; -#endif - gd->pci_clk = pci_sync_in; - gd->cpu_clk = gd->core_clk; - gd->bus_clk = gd->csb_clk; - return 0; - -} - -/******************************************** - * get_bus_freq - * return system bus freq in Hz - *********************************************/ -ulong get_bus_freq(ulong dummy) -{ - return gd->csb_clk; -} - -int do_clocks (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) -{ - char buf[32]; - - printf("Clock configuration:\n"); - printf(" Core: %-4s MHz\n", strmhz(buf, gd->core_clk)); - printf(" Coherent System Bus: %-4s MHz\n", strmhz(buf, gd->csb_clk)); -#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832x) - printf(" QE: %-4s MHz\n", strmhz(buf, gd->qe_clk)); - printf(" BRG: %-4s MHz\n", strmhz(buf, gd->brg_clk)); -#endif - printf(" Local Bus Controller:%-4s MHz\n", strmhz(buf, gd->lbiu_clk)); - printf(" Local Bus: %-4s MHz\n", strmhz(buf, gd->lclk_clk)); - printf(" DDR: %-4s MHz\n", strmhz(buf, gd->mem_clk)); -#if defined(CONFIG_MPC8360) - printf(" DDR Secondary: %-4s MHz\n", strmhz(buf, gd->mem_sec_clk)); -#endif - printf(" SEC: %-4s MHz\n", strmhz(buf, gd->enc_clk)); - printf(" I2C1: %-4s MHz\n", strmhz(buf, gd->i2c1_clk)); -#if !defined(CONFIG_MPC832x) - printf(" I2C2: %-4s MHz\n", strmhz(buf, gd->i2c2_clk)); -#endif -#if defined(CONFIG_MPC8315) - printf(" TDM: %-4s MHz\n", strmhz(buf, gd->tdm_clk)); -#endif -#if defined(CONFIG_MPC837x) - printf(" SDHC: %-4s MHz\n", strmhz(buf, gd->sdhc_clk)); -#endif -#if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x) - printf(" TSEC1: %-4s MHz\n", strmhz(buf, gd->tsec1_clk)); - printf(" TSEC2: %-4s MHz\n", strmhz(buf, gd->tsec2_clk)); - printf(" USB DR: %-4s MHz\n", strmhz(buf, gd->usbdr_clk)); -#endif -#if defined(CONFIG_MPC834x) - printf(" USB MPH: %-4s MHz\n", strmhz(buf, gd->usbmph_clk)); -#endif -#if defined(CONFIG_MPC837x) - printf(" PCIEXP1: %-4s MHz\n", strmhz(buf, gd->pciexp1_clk)); - printf(" PCIEXP2: %-4s MHz\n", strmhz(buf, gd->pciexp2_clk)); -#endif -#if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315) - printf(" SATA: %-4s MHz\n", strmhz(buf, gd->sata_clk)); -#endif - return 0; -} - -U_BOOT_CMD(clocks, 1, 0, do_clocks, - "print clock configuration", - " clocks" -); |