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mpc8xxx: Display RDIMM if detected

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Print a message when a RDIMM is detected.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
York Sun 2011-01-10 12:02:56 +00:00 committed by Kumar Gala
parent 243be8e296
commit dd12768974
1 changed files with 8 additions and 12 deletions
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20
arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
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@ -1,5 +1,5 @@
/* /*
* Copyright 2008 Freescale Semiconductor, Inc. * Copyright 2008-2011 Freescale Semiconductor, Inc.
* *
* This program is free software; you can redistribute it and/or * This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License * modify it under the terms of the GNU General Public License
@ -98,7 +98,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
unsigned int tDQSQ_max_ps = 0; unsigned int tDQSQ_max_ps = 0;
unsigned int tQHS_ps = 0; unsigned int tQHS_ps = 0;
unsigned int temp1, temp2, temp3; unsigned int temp1, temp2;
unsigned int additive_latency = 0; unsigned int additive_latency = 0;
#if !defined(CONFIG_FSL_DDR3) #if !defined(CONFIG_FSL_DDR3)
const unsigned int mclk_ps = get_memory_clk_period_ps(); const unsigned int mclk_ps = get_memory_clk_period_ps();
@ -215,18 +215,14 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
} }
outpdimm->all_DIMMs_registered = 0; outpdimm->all_DIMMs_registered = 0;
outpdimm->all_DIMMs_unbuffered = 0;
if (temp1 && !temp2) { if (temp1 && !temp2) {
outpdimm->all_DIMMs_registered = 1; outpdimm->all_DIMMs_registered = 1;
} printf("Detected RDIMM(s)\n");
} else if (!temp1 && temp2) {
outpdimm->all_DIMMs_unbuffered = 0;
if (!temp1 && temp2) {
outpdimm->all_DIMMs_unbuffered = 1; outpdimm->all_DIMMs_unbuffered = 1;
} printf("Detected UDIMM(s)\n");
} else {
/* CHECKME: */
if (!outpdimm->all_DIMMs_registered
&& !outpdimm->all_DIMMs_unbuffered) {
printf("ERROR: Mix of registered buffered and unbuffered " printf("ERROR: Mix of registered buffered and unbuffered "
"DIMMs detected!\n"); "DIMMs detected!\n");
} }
@ -237,7 +233,7 @@ compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
outpdimm->rcw[j] = dimm_params[0].rcw[j]; outpdimm->rcw[j] = dimm_params[0].rcw[j];
for (i = 1; i < number_of_dimms; i++) for (i = 1; i < number_of_dimms; i++)
if (dimm_params[i].rcw[j] != dimm_params[0].rcw[j]) { if (dimm_params[i].rcw[j] != dimm_params[0].rcw[j]) {
temp3 = 1; temp1 = 1;
break; break;
} }
} }