Dear Mark,

In message 497EFC3E.8050403@mimc.co.uk you wrote:

What if I just remove all the extranous #defines all together ? And just leave the inner "#if defined(CONFIG_ATMEL_LCD_BGR555)" ?

Well, we probably don't need to add code for 16bpp support on systems that cannot make use of it. Let's keep the memory footprint as small as possible.

Best regards,

Wolfgang Denk

Hello ,

We have a custom board similar to EP8548A board, custom board has MPC8548E alone with 4 onboard DDR2 SDRAM(total 512MB). Only one chip select is used. Below is the code snippet in u-boot, which will initialize the DDR2 SDRAM. Fortunately, When ever I give a hard reset( via switch) HRST# will be asserted and board will be Come up with the u-boot prompt.

But, when I give the command "reset" on the u-boot command line, system hangs printing The below on the console:

/*******************************************/ U-Boot 1.2.0 (Jan 27 2009 - 17:17:39)

CPU: 8548_E, Version: 2.1, (0x80390021) Core: E500, Version: 2.2, (0x80210022) Clock Configuration: CPU: 999 MHz, CCB: 399 MHz, DDR: 199 MHz, LBC: 49 MHz L1: D-cache 32 kB enabled I-cache 32 kB enabled Board: I2C: ready DRAM: Initializing DDR: 512 MB /*******************************************/

1) What might be the problem??? 2) I guess, after reinitializing the RAM this happened, but it is fine when I give a hard reset(using switch). 3) Is there any way that I should follow before re initializing the RAM.??? 4) As far as I know, in the below code snippet I'm doing the required stuffs.

Pls help me in this regard, at the earliest

/*************** ON Board, DDR2 SDRAM Initialization CODE Snippet********************? long int custom_sdram(void) { volatile immap_t *immap = (immap_t *)CFG_IMMR; volatile ccsr_ddr_t *ddr = &immap->im_ddr; unsigned int memsize;

/*ddr sdram config: MEM_HALT & disable*/ ddr->sdram_cfg = 0x03000002; udelay(200);

/*Below are the calculated DDR2 controller register values*/ ddr->cs0_bnds = 0x0000001f; /* 0x2000 - DDR Chip Select 0 Memory Bounds */ ddr->cs1_bnds = 0x00000000; /* 0x2008 - DDR Chip Select 1 Memory Bounds */ ddr->cs2_bnds = 0x00000000; /* 0x2010 - DDR Chip Select 2 Memory Bounds */ ddr->cs3_bnds = 0x00000000; /* 0x2018 - DDR Chip Select 3 Memory Bounds */

ddr->cs0_config = 0x80814102;/* 0x2080 - DDR Chip Select Configuration */ ddr->cs1_config = 0x00000000;/* 0x2084 - DDR Chip Select Configuration */ ddr->cs2_config = 0x00000000;/* 0x2088 - DDR Chip Select Configuration */ ddr->cs3_config = 0x00000000;/* 0x208c - DDR Chip Select Configuration */

ddr->ext_refrec = 0x00000000;/* 0x2100 - DDR SDRAM Extended Refresh Recovery */

ddr->timing_cfg_0 = 0xFF220802;/* 0x2104 - DDR SDRAM Timing Configuration Register 0 */

ddr->timing_cfg_1 = 0x3835a322;/* 0x2108 - DDR SDRAM Timing Configuration Register 1 */

ddr->timing_cfg_2 = 0x23108cca;/* 0x210c - DDR SDRAM Timing Configuration Register 2 */

ddr->sdram_mode = 0x40140432; /* 0x2118 - DDR SDRAM Mode Configuration */

ddr->sdram_interval = 0x06180100; /* 0x2124 - DDR SDRAM Interval Configuration */

asm("sync;isync;msync"); udelay(500);

ddr->sdram_cfg_2 = 0x04401000; /* 0x2114 - DDR SDRAM Control Configuration 2 */

ddr->sdram_clk_cntl = 0x02000000; /* 0x2130 - DDR SDRAM Clock Control */

udelay(200);

ddr->sdram_cfg = 0xc3008000;

asm("sync;isync;msync"); udelay(500);

/* * Figure out memory size in Megabytes. */ memsize = 512;

/* * Establish Local Access Window and TLB mappings for DDR memory. */ memsize = setup_laws_and_tlbs(memsize); if (memsize == 0) { return 0; } return memsize * 1024 * 1024; } /*******************************************/

Thanks, Ajeesh Kumar

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Hello Mashak,

I'm using the u-boot what I got with the development board (EP8548A) and we have a custom board Which is pretty similar to that. And I don't want to take any risk in changing the u-boot because is have Stipulated time. I'm done with the custom board bring up as of now, I have issues only in the reset.

Please help me in this regard

Thanks, Ajeesh Kumar

-----Original Message----- From: Roman Mashak [mailto:romez777@gmail.com] Sent: Tuesday, January 27, 2009 6:46 PM To: ajeesh@tataelxsi.co.in Cc: Wolfgang Denk; u-boot@lists.denx.de; u-boot@avr32linux.org; Raghavendra T; Siba Prasad Sahu Subject: Re: [U-Boot] Reset command on u-boot command line not working

Hello

2009/1/27, Ajeesh Kumar ajeesh@tataelxsi.co.in: [skip]

But, when I give the command "reset" on the u-boot command line, system hangs printing The below on the console:

/*******************************************/ U-Boot 1.2.0 (Jan 27 2009 - 17:17:39)

[skip]

Probably the first thing you should do is grab the latest U-Boot. The version you're experimenting is quite old, I'm afraid.

-- Roman Mashak

The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it.

Hello,

I too got this info, but due to stipulated time, I cant shift to newer version now. I assumed that as development used the same u-boot thought of going with the same. Please help me.

Thanks, Ajeesh Kumar

-----Original Message----- From: Wolfgang Denk [mailto:wd@denx.de] Sent: Tuesday, January 27, 2009 7:21 PM To: ajeesh@tataelxsi.co.in Cc: u-boot@lists.denx.de Subject: Re: [U-Boot] Reset command on u-boot command line not working

Dear "Ajeesh Kumar",

In message VSNLCHNFE0010mG7VAS00055aac@VSNLCHNFE001.VSNLXCHANGE.COM you wrote:

I'm using the u-boot what I got with the development board (EP8548A) and we have a custom board Which is pretty similar to that. And I don't want to take any risk in changing the u-boot because is have Stipulated time. I'm done with the custom board bring up as of now, I have issues only in the reset.

You must not expect much help with obsolete code. U-Boot 1.2.0 is close to 2 years old. A zillion problems has been fixed since in general, and especially for the 8548.

Frankly, it makes zero sense to use 1.2.0 on a new custom board.

Best regards,

Wolfgang Denk

Dear Ajeesh Kumar,

Odds are that the reset command isn't doing a full board reset and just resetting the core and thus you are seeing some hang from that.

• k

You may check your board design also. Is HRESET routed to all components on your board? Is the switch giving HRESET or triggering any power control IC?

Regards, Jayakrishnan

Dear "Ajeesh Kumar",

In message VSNLCHNFE00165WYtn400055fef@VSNLCHNFE001.VSNLXCHANGE.COM you wrote:

I too got this info, but due to stipulated time, I cant shift to newer version now. I assumed that as development used the same u-boot thought of going with the same. Please help me.

Feel free to check the history of changes in the git repository for commits that have impact on the initialization and reset of the 8548. There should be several.

Best regards,

Wolfgang Denk