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SMC1 uses external CLK4 instead of BRG on spc1920
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commit
8139567b60
2 changed files with 12 additions and 3 deletions
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@ -227,8 +227,17 @@ static int smc_init (void)
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sp->smc_smcm = 0;
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sp->smc_smce = 0xff;
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#ifdef CFG_SPC1920_SMC1_CLK4 /* clock source is PLD */
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*((volatile uchar *) CFG_SPC1920_PLD_BASE+6) = 0xff;
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#ifdef CFG_SPC1920_SMC1_CLK4
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/* clock source is PLD */
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/* set freq to 19200 Baud */
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*((volatile uchar *) CFG_SPC1920_PLD_BASE+6) = 0x3;
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/* configure clk4 as input */
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im->im_ioport.iop_pdpar |= 0x800;
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im->im_ioport.iop_pddir &= ~0x800;
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cp->cp_simode = 0x0000;
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cp->cp_simode |= 0x7000;
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#else
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/* Set up the baud rate generator */
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smc_setbrg ();
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@ -44,7 +44,7 @@
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#define CONFIG_BAUDRATE 19200
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/* use PLD CLK4 instead of brg */
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#undef CFG_SPC1920_SMC1_CLK4
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#define CFG_SPC1920_SMC1_CLK4
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#define CONFIG_8xx_OSCLK 10000000 /* 10 MHz oscillator on EXTCLK */
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#define CONFIG_8xx_CPUCLK_DEFAULT 50000000
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