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authorYork Sun <yorksun@freescale.com>2011-01-10 12:02:59 +0000
committerKumar Gala <galak@kernel.crashing.org>2011-01-19 22:58:23 -0600
commitd2a9568c57f0aa02f097911d3811e002a1eec1b8 (patch)
tree9cb9c95879bfbc5de66d8ff12f6179d27ae4db0d /arch/powerpc
parent8ed20f2c178aa44c8e1a35703579fd63350e9f42 (diff)
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mpc85xx: Adding more registers and options
This patch exposes more registers which can be used by the DDR drivers or interactive debugging. U-boot doesn't use all the registers in DDRC. When advanced tuning is required, writing to those registers is needed. Add writing to cdr1, cdr2, err_disable, err_int_en and debug registers Add options to override rcw, address parity to RDIMMs. Use array for debug registers. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/cpu/mpc85xx/ddr-gen3.c12
-rw-r--r--arch/powerpc/include/asm/fsl_ddr_sdram.h12
-rw-r--r--arch/powerpc/include/asm/immap_85xx.h21
3 files changed, 23 insertions, 22 deletions
diff --git a/arch/powerpc/cpu/mpc85xx/ddr-gen3.c b/arch/powerpc/cpu/mpc85xx/ddr-gen3.c
index e46dcb7..4e768d3 100644
--- a/arch/powerpc/cpu/mpc85xx/ddr-gen3.c
+++ b/arch/powerpc/cpu/mpc85xx/ddr-gen3.c
@@ -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
* modify it under the terms of the GNU General Public License
@@ -9,6 +9,7 @@
#include <common.h>
#include <asm/io.h>
#include <asm/fsl_ddr_sdram.h>
+#include <asm/processor.h>
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4)
#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL
@@ -79,6 +80,12 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
out_be32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr);
out_be32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1);
out_be32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2);
+ out_be32(&ddr->ddr_cdr1, regs->ddr_cdr1);
+ out_be32(&ddr->ddr_cdr2, regs->ddr_cdr2);
+ out_be32(&ddr->err_disable, regs->err_disable);
+ out_be32(&ddr->err_int_en, regs->err_int_en);
+ for (i = 0; i < 32; i++)
+ out_be32(&ddr->debug[i], regs->debug[i]);
/* Set, but do not enable the memory */
temp_sdram_cfg = regs->ddr_sdram_cfg;
@@ -93,8 +100,7 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
if ((((in_be32(&ddr->sdram_cfg) >> 24) & 0x7) == SDRAM_TYPE_DDR2)
&& in_be32(&ddr->sdram_cfg) & 0x80000) {
/* set DEBUG_1[31] */
- u32 temp = in_be32(&ddr->debug_1);
- out_be32(&ddr->debug_1, temp | 1);
+ setbits_be32(&ddr->debug[0], 1);
}
#endif
diff --git a/arch/powerpc/include/asm/fsl_ddr_sdram.h b/arch/powerpc/include/asm/fsl_ddr_sdram.h
index 3de2113..04aeb40 100644
--- a/arch/powerpc/include/asm/fsl_ddr_sdram.h
+++ b/arch/powerpc/include/asm/fsl_ddr_sdram.h
@@ -120,6 +120,11 @@ typedef struct fsl_ddr_cfg_regs_s {
unsigned int ddr_sdram_rcw_1;
unsigned int ddr_sdram_rcw_2;
unsigned int ddr_eor;
+ unsigned int ddr_cdr1;
+ unsigned int ddr_cdr2;
+ unsigned int err_disable;
+ unsigned int err_int_en;
+ unsigned int debug[32];
} fsl_ddr_cfg_regs_t;
typedef struct memctl_options_partial_s {
@@ -175,6 +180,7 @@ typedef struct memctl_options_s {
/* mirrior DIMMs for DDR3 */
unsigned int mirrored_dimm;
unsigned int quad_rank_present;
+ unsigned int ap_en; /* address parity enable for RDIMM */
/* Global Timing Parameters */
unsigned int cas_latency_override;
@@ -210,6 +216,12 @@ typedef struct memctl_options_s {
unsigned int zq_en;
/* Write leveling */
unsigned int wrlvl_en;
+ /* RCW override for RDIMM */
+ unsigned int rcw_override;
+ unsigned int rcw_1;
+ unsigned int rcw_2;
+ /* control register 1 */
+ unsigned int ddr_cdr1;
} memctl_options_t;
extern phys_size_t fsl_ddr_sdram(void);
diff --git a/arch/powerpc/include/asm/immap_85xx.h b/arch/powerpc/include/asm/immap_85xx.h
index 93a9e6c..6bd83ba 100644
--- a/arch/powerpc/include/asm/immap_85xx.h
+++ b/arch/powerpc/include/asm/immap_85xx.h
@@ -222,25 +222,8 @@ typedef struct ccsr_ddr {
u32 capture_ext_address; /* Error Extended Addr Capture */
u32 err_sbe; /* Single-Bit ECC Error Management */
u8 res11[164];
- u32 debug_1;
- u32 debug_2;
- u32 debug_3;
- u32 debug_4;
- u32 debug_5;
- u32 debug_6;
- u32 debug_7;
- u32 debug_8;
- u32 debug_9;
- u32 debug_10;
- u32 debug_11;
- u32 debug_12;
- u32 debug_13;
- u32 debug_14;
- u32 debug_15;
- u32 debug_16;
- u32 debug_17;
- u32 debug_18;
- u8 res12[184];
+ u32 debug[32]; /* debug_1 to debug_32 */
+ u8 res12[128];
} ccsr_ddr_t;
#define DDR_EOR_RD_BDW_OPT_DIS 0x80000000 /* Read BDW Opt. disable */