On Thursday 17 January 2008, Niklaus Giger wrote:
> Added some routines used by all Netstal boards:
> - nm_bsp.c: - nm_show_print and
> - common_misc_init_r
> - set_params_for_sw_install. Bery specific code to handle our SW
> installation procedure
> - fixed_sdram.c: Common routines for HCU4 (and upcoming) MCU25 boards
> to handle sdram initialization.
> - nm.h: Common header
Please see below.
> Signed-off-by: Niklaus Giger <[EMAIL PROTECTED]>
> ---
> board/netstal/common/fixed_sdram.c | 106 +++++++++++++++++++++++++++++
> board/netstal/common/nm.h | 40 +++++++++++
> board/netstal/common/nm_bsp.c | 128
> +++++++++++++++++++++++++++++++----- 3 files changed, 258 insertions(+), 16
> deletions(-)
> create mode 100644 board/netstal/common/fixed_sdram.c
> create mode 100644 board/netstal/common/nm.h
>
> diff --git a/board/netstal/common/fixed_sdram.c
> b/board/netstal/common/fixed_sdram.c new file mode 100644
> index 0000000..65b297f
> --- /dev/null
> +++ b/board/netstal/common/fixed_sdram.c
> @@ -0,0 +1,106 @@
> +/*
> + *(C) Copyright 2005-2008 Netstal Maschinen AG
> + * Niklaus Giger ([EMAIL PROTECTED])
> + *
> + * This source code is free software; you can redistribute it
> + * and/or modify it in source code form 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 <ppc4xx.h>
> +#include <asm/processor.h>
> +#include "nm.h"
> +
> +#if defined(DEBUG)
> +void show_sdram_registers(void)
> +{
> + u32 value;
> +
> + printf("SDRAM Controller Registers --\n");
> + mfsdram(mem_mcopt1, value);
> + printf(" SDRAM0_CFG : 0x%08x\n", value);
> + mfsdram(mem_status, value);
> + printf(" SDRAM0_STATUS: 0x%08x\n", value);
> + mfsdram(mem_mb0cf, value);
> + printf(" SDRAM0_B0CR : 0x%08x\n", value);
> + mfsdram(mem_mb1cf, value);
> + printf(" SDRAM0_B1CR : 0x%08x\n", value);
> + mfsdram(mem_sdtr1, value);
> + printf(" SDRAM0_TR : 0x%08x\n", value);
> + mfsdram(mem_rtr, value);
> + printf(" SDRAM0_RTR : 0x%08x\n", value);
> +}
> +#endif
> +
> +long int fixed_hcu4_sdram (unsigned int dram_size)
> +{
> +#ifdef DEBUG
> + printf(__FUNCTION__);
> +#endif
> + /* disable memory controller */
> + mtsdram(mem_mcopt1, 0x00000000);
> +
> + udelay (500);
> +
> + /* Clear SDRAM0_BESR0 (Bus Error Syndrome Register) */
> + mtsdram(mem_besra, 0xffffffff);
> +
> + /* Clear SDRAM0_BESR1 (Bus Error Syndrome Register) */
> + mtsdram(mem_besrb, 0xffffffff);
> +
> + /* Clear SDRAM0_ECCCFG (disable ECC) */
> + mtsdram(mem_ecccf, 0x00000000);
> +
> + /* Clear SDRAM0_ECCESR (ECC Error Syndrome Register) */
> + mtsdram(mem_eccerr, 0xffffffff);
> +
> + /* Timing register: CASL=2, PTA=2, CTP=2, LDF=1, RFTA=5, RCD=2
> + */
> + mtsdram(mem_sdtr1, 0x008a4015);
> +
> + /* Memory Bank 0 Config == BA=0x00000000, SZ=64M, AM=3, BE=1
> + * and refresh timer
> + */
> + switch (dram_size >> 20) {
> + case 32:
> + mtsdram(mem_mb0cf, 0x00062001);
> + mtsdram(mem_rtr, 0x07F00000);
> + break;
> + case 64:
> + mtsdram(mem_mb0cf, 0x00084001);
> + mtsdram(mem_rtr, 0x04100000);
> + break;
> + case 128:
> + mtsdram(mem_mb0cf, 0x000A4001);
> + mtsdram(mem_rtr, 0x04100000);
> + break;
> + default:
> + printf("Some error here...\n");
Heh. This was just an example that you should fill with a reasonable error
message. :)
Please fix and resubmit.
Thanks.
Best regards,
Stefan
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