From 8139567b60d678584b05f0718a681f2047c5e14f Mon Sep 17 00:00:00 2001 From: Markus Klotzbuecher Date: Tue, 9 Jan 2007 14:57:11 +0100 Subject: [PATCH] SMC1 uses external CLK4 instead of BRG on spc1920 --- cpu/mpc8xx/serial.c | 13 +++++++++++-- include/configs/spc1920.h | 2 +- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/cpu/mpc8xx/serial.c b/cpu/mpc8xx/serial.c index 8ae584f2e1..c8caa793d2 100644 --- a/cpu/mpc8xx/serial.c +++ b/cpu/mpc8xx/serial.c @@ -227,8 +227,17 @@ static int smc_init (void) sp->smc_smcm = 0; sp->smc_smce = 0xff; -#ifdef CFG_SPC1920_SMC1_CLK4 /* clock source is PLD */ - *((volatile uchar *) CFG_SPC1920_PLD_BASE+6) = 0xff; +#ifdef CFG_SPC1920_SMC1_CLK4 + /* clock source is PLD */ + + /* set freq to 19200 Baud */ + *((volatile uchar *) CFG_SPC1920_PLD_BASE+6) = 0x3; + /* configure clk4 as input */ + im->im_ioport.iop_pdpar |= 0x800; + im->im_ioport.iop_pddir &= ~0x800; + + cp->cp_simode = 0x0000; + cp->cp_simode |= 0x7000; #else /* Set up the baud rate generator */ smc_setbrg (); diff --git a/include/configs/spc1920.h b/include/configs/spc1920.h index f8909b1d1d..a836d82992 100644 --- a/include/configs/spc1920.h +++ b/include/configs/spc1920.h @@ -44,7 +44,7 @@ #define CONFIG_BAUDRATE 19200 /* use PLD CLK4 instead of brg */ -#undef CFG_SPC1920_SMC1_CLK4 +#define CFG_SPC1920_SMC1_CLK4 #define CONFIG_8xx_OSCLK 10000000 /* 10 MHz oscillator on EXTCLK */ #define CONFIG_8xx_CPUCLK_DEFAULT 50000000 -- 2.39.5