diff options
author | roy zang <tie-fei.zang@freescale.com> | 2006-12-04 23:57:35 +0800 |
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committer | Zang Tiefei <roy@bus.ap.freescale.net> | 2006-12-04 23:57:35 +0800 |
commit | d3bb5ec198edad4869ac5276a5899881b7bf5433 (patch) | |
tree | 409a70e937d5f826df7929d11cb08a7cd207f5cd /cpu/mpc83xx/speed.c | |
parent | 41862d13a87ec58c21166b10fcb754c963bc46f2 (diff) | |
parent | 9d27b3a0685ff99fc477983f315c04d49f657a8a (diff) | |
download | u-boot-imx-d3bb5ec198edad4869ac5276a5899881b7bf5433.zip u-boot-imx-d3bb5ec198edad4869ac5276a5899881b7bf5433.tar.gz u-boot-imx-d3bb5ec198edad4869ac5276a5899881b7bf5433.tar.bz2 |
Merge /home/roy/CVS/7448/Open_Source/u-boot.git.dev
Diffstat (limited to 'cpu/mpc83xx/speed.c')
-rw-r--r-- | cpu/mpc83xx/speed.c | 312 |
1 files changed, 161 insertions, 151 deletions
diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c index ad6b3f6..7e53b1e 100644 --- a/cpu/mpc83xx/speed.c +++ b/cpu/mpc83xx/speed.c @@ -2,7 +2,7 @@ * (C) Copyright 2000-2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * - * Copyright 2004 Freescale Semiconductor, Inc. + * Copyright (C) 2004-2006 Freescale Semiconductor, Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -21,11 +21,6 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA - * - * Change log: - * - * 20050101: Eran Liberty (liberty@freescale.com) - * Initial file creating (porting from 85XX & 8260) */ #include <common.h> @@ -53,38 +48,38 @@ typedef enum { typedef struct { mult_t core_csb_ratio; - mult_t vco_divider; + 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 */ + {_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 */ }; /* ----------------------------------------------------------------- */ @@ -92,91 +87,64 @@ corecnf_t corecnf_tab[] = { /* * */ -int get_clocks (void) +int get_clocks(void) { - volatile immap_t *im = (immap_t *)CFG_IMMRBAR; + volatile immap_t *im = (immap_t *) CFG_IMMR; u32 pci_sync_in; - u8 spmf; - u8 clkin_div; + u8 spmf; + u8 clkin_div; u32 sccr; u32 corecnf_tab_index; - u8 corepll; + u8 corepll; u32 lcrr; u32 csb_clk; +#if defined(CONFIG_MPC8349) u32 tsec1_clk; u32 tsec2_clk; - u32 core_clk; u32 usbmph_clk; u32 usbdr_clk; - u32 i2c_clk; +#endif + u32 core_clk; + u32 i2c1_clk; + u32 i2c2_clk; u32 enc_clk; u32 lbiu_clk; u32 lclk_clk; u32 ddr_clk; - - if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im) +#if defined (CONFIG_MPC8360) + u32 qepmf; + u32 qepdf; + u32 ddr_sec_clk; + u32 qe_clk; + u32 brg_clk; +#endif + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im) return -1; -#ifndef CFG_HRCW_HIGH -# error "CFG_HRCW_HIGH must be defined in board config file" -#endif /* CFG_HCWD_HIGH */ - -#if (CFG_HRCW_HIGH & HRCWH_PCI_HOST) - -# ifndef CONFIG_83XX_CLKIN -# error "In PCI Host Mode, CONFIG_83XX_CLKIN must be defined in board config file" -# endif /* CONFIG_83XX_CLKIN */ -# ifdef CONFIG_83XX_PCICLK -# warning "In PCI Host Mode, CONFIG_83XX_PCICLK in board config file is igonred" -# endif /* CONFIG_83XX_PCICLK */ - - /* PCI Host Mode */ - if (!(im->reset.rcwh & RCWH_PCIHOST)) { - /* though RCWH_PCIHOST is defined in CFG_HRCW_HIGH - * the im->reset.rcwhr PCI Host Mode is disabled - * FIXME: findout if there is a way to issue some warning */ - return -2; - } - if (im->clk.spmr & SPMR_CKID) { - /* PCI Clock is half CONFIG_83XX_CLKIN */ - pci_sync_in = CONFIG_83XX_CLKIN / 2; - } - else { - pci_sync_in = CONFIG_83XX_CLKIN; - } - -#else /* (CFG_HRCW_HIGH & HRCWH_PCI_HOST) */ - -# ifdef CONFIG_83XX_CLKIN -# warning "In PCI Agent Mode, CONFIG_83XX_CLKIN in board config file is igonred" -# endif /* CONFIG_83XX_CLKIN */ -# ifndef CONFIG_83XX_PCICLK -# error "In PCI Agent Mode, CONFIG_83XX_PCICLK must be defined in board config file" -# endif /* CONFIG_83XX_PCICLK */ + clkin_div = ((im->clk.spmr & SPMR_CKID) >> SPMR_CKID_SHIFT); - /* PCI Agent Mode */ - if (im->reset.rcwh & RCWH_PCIHOST) { - /* though RCWH_PCIHOST is not defined in CFG_HRCW_HIGH - * the im->reset.rcwhr PCI Host Mode is enabled */ - return -3; + 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 } - pci_sync_in = CONFIG_83XX_PCICLK; - -#endif /* (CFG_HRCW_HIGH | RCWH_PCIHOST) */ - /* we have up to date pci_sync_in */ spmf = ((im->reset.rcwl & RCWL_SPMF) >> RCWL_SPMF_SHIFT); - clkin_div = ((im->clk.spmr & SPMR_CKID) >> SPMR_CKID_SHIFT); - - if ((im->reset.rcwl & RCWL_LBIUCM) || (im->reset.rcwl & RCWL_DDRCM)) { - csb_clk = (pci_sync_in * spmf * (1 + clkin_div)) / 2; - } - else { - csb_clk = pci_sync_in * spmf * (1 + clkin_div); - } + csb_clk = pci_sync_in * (1 + clkin_div) * spmf; sccr = im->clk.sccr; + +#if defined(CONFIG_MPC8349) switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) { case 0: tsec1_clk = 0; @@ -212,25 +180,8 @@ int get_clocks (void) /* unkown SCCR_TSEC2CM value */ return -5; } - i2c_clk = tsec2_clk; - 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 -6; - } + i2c1_clk = tsec2_clk; switch ((sccr & SCCR_USBMPHCM) >> SCCR_USBMPHCM_SHIFT) { case 0: @@ -268,14 +219,42 @@ int get_clocks (void) return -8; } - 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 than USB MPH & USB DR must have the same rate */ + 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 -9; } +#endif +#if defined (CONFIG_MPC8360) + i2c1_clk = csb_clk; +#endif + i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */ - lbiu_clk = csb_clk * (1 + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); + 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 -6; + } +#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360) + lbiu_clk = csb_clk * + (1 + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); +#else +#error Unknown MPC83xx chip +#endif lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT; switch (lcrr) { case 2: @@ -287,12 +266,20 @@ int get_clocks (void) /* unknown lcrr */ return -10; } - - ddr_clk = csb_clk * (1 + ((im->reset.rcwl & RCWL_DDRCM) >> RCWL_DDRCM_SHIFT)); - +#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360) + ddr_clk = csb_clk * + (1 + ((im->reset.rcwl & RCWL_DDRCM) >> RCWL_DDRCM_SHIFT)); corepll = (im->reset.rcwl & RCWL_COREPLL) >> RCWL_COREPLL_SHIFT; +#if defined (CONFIG_MPC8360) + ddr_sec_clk = csb_clk * (1 + + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); +#endif +#else +#error Unknown MPC83xx chip +#endif + corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5); - if (corecnf_tab_index > (sizeof(corecnf_tab)/sizeof(corecnf_t)) ) { + if (corecnf_tab_index > (sizeof(corecnf_tab) / sizeof(corecnf_t))) { /* corecnf_tab_index is too high, possibly worng value */ return -11; } @@ -309,7 +296,7 @@ int get_clocks (void) core_clk = 2 * csb_clk; break; case _2_5x: - core_clk = ( 5 * csb_clk) / 2; + core_clk = (5 * csb_clk) / 2; break; case _3x: core_clk = 3 * csb_clk; @@ -319,46 +306,69 @@ int get_clocks (void) return -12; } - gd->csb_clk = csb_clk ; - gd->tsec1_clk = tsec1_clk ; - gd->tsec2_clk = tsec2_clk ; - gd->core_clk = core_clk ; +#if defined (CONFIG_MPC8360) + qepmf = (im->reset.rcwl & RCWL_CEPMF) >> RCWL_CEPMF_SHIFT; + qepdf = (im->reset.rcwl & RCWL_CEPDF) >> RCWL_CEPDF_SHIFT; + qe_clk = (pci_sync_in * qepmf) / (1 + qepdf); + brg_clk = qe_clk / 2; +#endif + + gd->csb_clk = csb_clk; +#if defined(CONFIG_MPC8349) + gd->tsec1_clk = tsec1_clk; + gd->tsec2_clk = tsec2_clk; gd->usbmph_clk = usbmph_clk; - gd->usbdr_clk = usbdr_clk ; - gd->i2c_clk = i2c_clk ; - gd->enc_clk = enc_clk ; - gd->lbiu_clk = lbiu_clk ; - gd->lclk_clk = lclk_clk ; - gd->ddr_clk = ddr_clk ; - gd->pci_clk = pci_sync_in; - + gd->usbdr_clk = usbdr_clk; +#endif + gd->core_clk = core_clk; + gd->i2c1_clk = i2c1_clk; + gd->i2c2_clk = i2c2_clk; + gd->enc_clk = enc_clk; + gd->lbiu_clk = lbiu_clk; + gd->lclk_clk = lclk_clk; + gd->ddr_clk = ddr_clk; +#if defined (CONFIG_MPC8360) + gd->ddr_sec_clk = ddr_sec_clk; + gd->qe_clk = qe_clk; + gd->brg_clk = brg_clk; +#endif gd->cpu_clk = gd->core_clk; - gd->bus_clk = gd->lbiu_clk; + gd->bus_clk = gd->csb_clk; return 0; + } /******************************************** * get_bus_freq * return system bus freq in Hz *********************************************/ -ulong get_bus_freq (ulong dummy) +ulong get_bus_freq(ulong dummy) { return gd->csb_clk; } -int print_clock_conf (void) +int print_clock_conf(void) { printf("Clock configuration:\n"); - printf(" Coherent System Bus: %4d MHz\n",gd->csb_clk/1000000); - printf(" Core: %4d MHz\n",gd->core_clk/1000000); - debug(" Local Bus Controller:%4d MHz\n",gd->lbiu_clk/1000000); - printf(" Local Bus: %4d MHz\n",gd->lclk_clk/1000000); - debug(" DDR: %4d MHz\n",gd->ddr_clk/1000000); - debug(" I2C: %4d MHz\n",gd->i2c_clk/1000000); - debug(" TSEC1: %4d MHz\n",gd->tsec1_clk/1000000); - debug(" TSEC2: %4d MHz\n",gd->tsec2_clk/1000000); - debug(" USB MPH: %4d MHz\n",gd->usbmph_clk/1000000); - debug(" USB DR: %4d MHz\n",gd->usbdr_clk/1000000); - + printf(" Coherent System Bus: %4d MHz\n", gd->csb_clk / 1000000); + printf(" Core: %4d MHz\n", gd->core_clk / 1000000); +#if defined (CONFIG_MPC8360) + printf(" QE: %4d MHz\n", gd->qe_clk / 1000000); +#endif + printf(" Local Bus Controller:%4d MHz\n", gd->lbiu_clk / 1000000); + printf(" Local Bus: %4d MHz\n", gd->lclk_clk / 1000000); + printf(" DDR: %4d MHz\n", gd->ddr_clk / 1000000); +#if defined (CONFIG_MPC8360) + printf(" DDR Secondary: %4d MHz\n", gd->ddr_sec_clk / 1000000); +#endif + printf(" SEC: %4d MHz\n", gd->enc_clk / 1000000); + printf(" I2C1: %4d MHz\n", gd->i2c1_clk / 1000000); + printf(" I2C2: %4d MHz\n", gd->i2c2_clk / 1000000); +#if defined(CONFIG_MPC8349) + printf(" TSEC1: %4d MHz\n", gd->tsec1_clk / 1000000); + printf(" TSEC2: %4d MHz\n", gd->tsec2_clk / 1000000); + printf(" USB MPH: %4d MHz\n", gd->usbmph_clk / 1000000); + printf(" USB DR: %4d MHz\n", gd->usbdr_clk / 1000000); +#endif return 0; } |