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author | wdenk <wdenk> | 2004-09-28 17:59:53 +0000 |
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committer | wdenk <wdenk> | 2004-09-28 17:59:53 +0000 |
commit | 66ca92a5ba882807ba8ed8f772c0fc22b25976cc (patch) | |
tree | 45f62d161cf60f9b5be79427073c979d99a41be2 /cpu/mpc8xx | |
parent | 4ec3a7f0fdbad19ad4fa0172b97451b98e82316a (diff) | |
download | u-boot-imx-66ca92a5ba882807ba8ed8f772c0fc22b25976cc.zip u-boot-imx-66ca92a5ba882807ba8ed8f772c0fc22b25976cc.tar.gz u-boot-imx-66ca92a5ba882807ba8ed8f772c0fc22b25976cc.tar.bz2 |
* Patch by Yuli Barcohen, 13 Jul 2004:
Allow clock setting on MPC866/MPC885 series chips according to
environment variable `cpuclk'
* Patch by Yuli Barcohen, 20 Apr 2004:
Remove unnecessary redefine of CPM_DATAONLY_SIZE for MPC826x
Diffstat (limited to 'cpu/mpc8xx')
-rw-r--r-- | cpu/mpc8xx/cpu.c | 12 | ||||
-rw-r--r-- | cpu/mpc8xx/speed.c | 32 |
2 files changed, 22 insertions, 22 deletions
diff --git a/cpu/mpc8xx/cpu.c b/cpu/mpc8xx/cpu.c index d23d7ee..89a176e 100644 --- a/cpu/mpc8xx/cpu.c +++ b/cpu/mpc8xx/cpu.c @@ -124,13 +124,13 @@ static int check_CPU (long clock, uint pvr, uint immr) printf ("unknown M%s (0x%08x)", id_str, k); -#if defined(CFG_866_CPUCLK_MIN) && defined(CFG_866_CPUCLK_MAX) +#if defined(CFG_8xx_CPUCLK_MIN) && defined(CFG_8xx_CPUCLK_MAX) printf (" at %s MHz [%d.%d...%d.%d MHz]\n ", strmhz (buf, clock), - CFG_866_CPUCLK_MIN / 1000000, - ((CFG_866_CPUCLK_MIN % 1000000) + 50000) / 100000, - CFG_866_CPUCLK_MAX / 1000000, - ((CFG_866_CPUCLK_MAX % 1000000) + 50000) / 100000 + CFG_8xx_CPUCLK_MIN / 1000000, + ((CFG_8xx_CPUCLK_MIN % 1000000) + 50000) / 100000, + CFG_8xx_CPUCLK_MAX / 1000000, + ((CFG_8xx_CPUCLK_MAX % 1000000) + 50000) / 100000 ); #else printf (" at %s MHz: ", strmhz (buf, clock)); @@ -140,7 +140,7 @@ static int check_CPU (long clock, uint pvr, uint immr) checkdcache () >> 10 ); - /* do we have a FEC (860T/P or 852/859/866)? */ + /* do we have a FEC (860T/P or 852/859/866/885)? */ immap->im_cpm.cp_fec.fec_addr_low = 0x12345678; if (immap->im_cpm.cp_fec.fec_addr_low == 0x12345678) { diff --git a/cpu/mpc8xx/speed.c b/cpu/mpc8xx/speed.c index ebd1fda..95003ed 100644 --- a/cpu/mpc8xx/speed.c +++ b/cpu/mpc8xx/speed.c @@ -25,7 +25,7 @@ #include <mpc8xx.h> #include <asm/processor.h> -#if !defined(CONFIG_TQM866M) || defined(CFG_MEASURE_CPUCLK) +#if !defined(CONFIG_8xx_CPUCLK_DEFAULT) || defined(CFG_MEASURE_CPUCLK) #define PITC_SHIFT 16 #define PITR_SHIFT 16 @@ -172,7 +172,7 @@ unsigned long measure_gclk(void) #endif -#if !defined(CONFIG_TQM866M) && !defined(CONFIG_NC650) +#if !defined(CONFIG_8xx_CPUCLK_DEFAULT) /* * get_clocks() fills in gd->cpu_clock depending on CONFIG_8xx_GCLK_FREQ @@ -226,15 +226,15 @@ int get_clocks (void) return (0); } -#else /* CONFIG_MPC866_FAMILY */ +#else /* CONFIG_8xx_CPUCLK_DEFAULT defined, use dynamic clock setting */ static long init_pll_866 (long clk); /* This function sets up PLL (init_pll_866() is called) and * fills gd->cpu_clk and gd->bus_clk according to the environment - * variable 'cpuclk' or to CFG_866_CPUCLK_DEFAULT (if 'cpuclk' + * variable 'cpuclk' or to CONFIG_8xx_CPUCLK_DEFAULT (if 'cpuclk' * contains invalid value). - * This functions requires an MPC866 series CPU. + * This functions requires an MPC866 or newer series CPU. */ int get_clocks_866 (void) { @@ -248,8 +248,8 @@ int get_clocks_866 (void) if (getenv_r ("cpuclk", tmp, sizeof (tmp)) > 0) cpuclk = simple_strtoul (tmp, NULL, 10) * 1000000; - if ((CFG_866_CPUCLK_MIN > cpuclk) || (CFG_866_CPUCLK_MAX < cpuclk)) - cpuclk = CFG_866_CPUCLK_DEFAULT; + if ((CFG_8xx_CPUCLK_MIN > cpuclk) || (CFG_8xx_CPUCLK_MAX < cpuclk)) + cpuclk = CONFIG_8xx_CPUCLK_DEFAULT; gd->cpu_clk = init_pll_866 (cpuclk); #if defined(CFG_MEASURE_CPUCLK) @@ -284,13 +284,13 @@ int sdram_adjust_866 (void) mamr = immr->im_memctl.memc_mamr; mamr &= ~MAMR_PTA_MSK; - mamr |= ((gd->cpu_clk / CFG_866_PTA_PER_CLK) << MAMR_PTA_SHIFT); + mamr |= ((gd->cpu_clk / CFG_PTA_PER_CLK) << MAMR_PTA_SHIFT); immr->im_memctl.memc_mamr = mamr; return (0); } -/* Configure PLL for MPC866/859 CPU series +/* Configure PLL for MPC866/859/885 CPU series * PLL multiplication factor is set to the value nearest to the desired clk, * assuming a oscclk of 10 MHz. */ @@ -312,19 +312,19 @@ static long init_pll_866 (long clk) if (clk < 40000000) { s = 2; - step_mfi = CFG_866_OSCCLK / 4; + step_mfi = CONFIG_8xx_OSCLK / 4; mfd = 7; - step_mfn = CFG_866_OSCCLK / 30; + step_mfn = CONFIG_8xx_OSCLK / 30; } else if (clk < 80000000) { s = 1; - step_mfi = CFG_866_OSCCLK / 2; + step_mfi = CONFIG_8xx_OSCLK / 2; mfd = 14; - step_mfn = CFG_866_OSCCLK / 30; + step_mfn = CONFIG_8xx_OSCLK / 30; } else { s = 0; - step_mfi = CFG_866_OSCCLK; + step_mfi = CONFIG_8xx_OSCLK; mfd = 29; - step_mfn = CFG_866_OSCCLK / 30; + step_mfn = CONFIG_8xx_OSCLK / 30; } /* Calculate integer part of multiplication factor @@ -362,7 +362,7 @@ static long init_pll_866 (long clk) return (n); } -#endif /* CONFIG_MPC866_FAMILY */ +#endif /* CONFIG_8xx_CPUCLK_DEFAULT */ #if defined(CONFIG_TQM8xxL) && !defined(CONFIG_TQM866M) /* |