am33xx: Do not touch 'ratio1' fields
authorTom Rini <trini@ti.com>
Tue, 24 Jul 2012 23:49:58 +0000 (16:49 -0700)
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>
Sat, 1 Sep 2012 12:58:12 +0000 (14:58 +0200)
The various ratio1 fields are not documented in any of the documentation
I can find.  Removing these and testing has yielded success, so remove
the code that sets them and move their locations into the reserved
fields.

Signed-off-by: Tom Rini <trini@ti.com>
arch/arm/cpu/armv7/am33xx/ddr.c
arch/arm/cpu/armv7/am33xx/emif4.c
arch/arm/include/asm/arch-am33xx/ddr_defs.h

index 597d62f61ba34288d17d34b590a43be3167600e9..59ca51f59d96e1cbfe3219e639cc73cba8a03035 100644 (file)
@@ -101,22 +101,11 @@ void config_cmd_ctrl(const struct cmd_control *cmd)
 void config_ddr_data(int macrono, const struct ddr_data *data)
 {
        writel(data->datardsratio0, &ddr_reg[macrono]->dt0rdsratio0);
-       writel(data->datardsratio1, &ddr_reg[macrono]->dt0rdsratio1);
-
        writel(data->datawdsratio0, &ddr_reg[macrono]->dt0wdsratio0);
-       writel(data->datawdsratio1, &ddr_reg[macrono]->dt0wdsratio1);
-
        writel(data->datawiratio0, &ddr_reg[macrono]->dt0wiratio0);
-       writel(data->datawiratio1, &ddr_reg[macrono]->dt0wiratio1);
        writel(data->datagiratio0, &ddr_reg[macrono]->dt0giratio0);
-       writel(data->datagiratio1, &ddr_reg[macrono]->dt0giratio1);
-
        writel(data->datafwsratio0, &ddr_reg[macrono]->dt0fwsratio0);
-       writel(data->datafwsratio1, &ddr_reg[macrono]->dt0fwsratio1);
-
        writel(data->datawrsratio0, &ddr_reg[macrono]->dt0wrsratio0);
-       writel(data->datawrsratio1, &ddr_reg[macrono]->dt0wrsratio1);
-
        writel(data->datadldiff0, &ddr_reg[macrono]->dt0dldiff0);
 }
 
index 3219045447eb201233dc601dd37b0384060dd43c..ace3d26eac1cc70514a9789ed1e8af74c2da4d43 100644 (file)
@@ -51,22 +51,16 @@ void dram_init_banksize(void)
 static const struct ddr_data ddr2_data = {
        .datardsratio0 = ((DDR2_RD_DQS<<30)|(DDR2_RD_DQS<<20)
                                |(DDR2_RD_DQS<<10)|(DDR2_RD_DQS<<0)),
-       .datardsratio1 = DDR2_RD_DQS>>2,
        .datawdsratio0 = ((DDR2_WR_DQS<<30)|(DDR2_WR_DQS<<20)
                                |(DDR2_WR_DQS<<10)|(DDR2_WR_DQS<<0)),
-       .datawdsratio1 = DDR2_WR_DQS>>2,
        .datawiratio0 = ((DDR2_PHY_WRLVL<<30)|(DDR2_PHY_WRLVL<<20)
                                |(DDR2_PHY_WRLVL<<10)|(DDR2_PHY_WRLVL<<0)),
-       .datawiratio1 = DDR2_PHY_WRLVL>>2,
        .datagiratio0 = ((DDR2_PHY_GATELVL<<30)|(DDR2_PHY_GATELVL<<20)
                                |(DDR2_PHY_GATELVL<<10)|(DDR2_PHY_GATELVL<<0)),
-       .datagiratio1 = DDR2_PHY_GATELVL>>2,
        .datafwsratio0 = ((DDR2_PHY_FIFO_WE<<30)|(DDR2_PHY_FIFO_WE<<20)
                                |(DDR2_PHY_FIFO_WE<<10)|(DDR2_PHY_FIFO_WE<<0)),
-       .datafwsratio1 = DDR2_PHY_FIFO_WE>>2,
        .datawrsratio0 = ((DDR2_PHY_WR_DATA<<30)|(DDR2_PHY_WR_DATA<<20)
                                |(DDR2_PHY_WR_DATA<<10)|(DDR2_PHY_WR_DATA<<0)),
-       .datawrsratio1 = DDR2_PHY_WR_DATA>>2,
        .datadldiff0 = PHY_DLL_LOCK_DIFF,
 };
 
index ebd3077f72ffe3ac98f1f63f8baab793025c2be9..b37b161df3ce9317a14fe08e800378995492d9ea 100644 (file)
@@ -88,25 +88,20 @@ struct ddr_regs {
        unsigned int cm2iclkout;        /* offset 0x094 */
        unsigned int resv3[12];
        unsigned int dt0rdsratio0;      /* offset 0x0C8 */
-       unsigned int dt0rdsratio1;      /* offset 0x0CC */
-       unsigned int resv4[3];
+       unsigned int resv4[4];
        unsigned int dt0wdsratio0;      /* offset 0x0DC */
-       unsigned int dt0wdsratio1;      /* offset 0x0E0 */
-       unsigned int resv5[3];
+       unsigned int resv5[4];
        unsigned int dt0wiratio0;       /* offset 0x0F0 */
-       unsigned int dt0wiratio1;       /* offset 0x0F4 */
+       unsigned int resv6;
        unsigned int dt0giratio0;       /* offset 0x0FC */
-       unsigned int dt0giratio1;       /* offset 0x100 */
-       unsigned int resv6[1];
+       unsigned int resv7[2];
        unsigned int dt0fwsratio0;      /* offset 0x108 */
-       unsigned int dt0fwsratio1;      /* offset 0x10C */
-       unsigned int resv7[4];
+       unsigned int resv8[5];
        unsigned int dt0wrsratio0;      /* offset 0x120 */
-       unsigned int dt0wrsratio1;      /* offset 0x124 */
-       unsigned int resv8[3];
+       unsigned int resv9[4];
        unsigned int dt0rdelays0;       /* offset 0x134 */
        unsigned int dt0dldiff0;        /* offset 0x138 */
-       unsigned int resv9[39];
+       unsigned int resv10[39];
        unsigned int dt1rdelays0;       /* offset 0x1D8 */
 };
 
@@ -136,17 +131,11 @@ struct cmd_control {
  */
 struct ddr_data {
        unsigned long datardsratio0;
-       unsigned long datardsratio1;
        unsigned long datawdsratio0;
-       unsigned long datawdsratio1;
        unsigned long datawiratio0;
-       unsigned long datawiratio1;
        unsigned long datagiratio0;
-       unsigned long datagiratio1;
        unsigned long datafwsratio0;
-       unsigned long datafwsratio1;
        unsigned long datawrsratio0;
-       unsigned long datawrsratio1;
        unsigned long datadldiff0;
 };