ARM: AM33xx+: Update ioregs to pass different values

Currently same value is programmed for all ioregs. This is not
the case for all SoC's like AM4372. So adding a structure for ioregs
and updating in all board files. And also return from config_cmd_ctrl()
and config_ddr_data() functions if data is not passed.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
[trini: Fixup dxr2, cm_t335, adapt pcm051 rev3]
Signed-off-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/am33xx/ddr.c

@@ -88,6 +88,9 @@ void config_ddr_phy(const struct emif_regs *regs, int nr)
  */
 void config_cmd_ctrl(const struct cmd_control *cmd, int nr)
 {
+	if (!cmd)
+		return;
+
 	writel(cmd->cmd0csratio, &ddr_cmd_reg[nr]->cm0csratio);
 	writel(cmd->cmd0iclkout, &ddr_cmd_reg[nr]->cm0iclkout);
 
@@ -105,6 +108,9 @@ void config_ddr_data(const struct ddr_data *data, int nr)
 {
 	int i;
 
+	if (!data)
+		return;
+
 	for (i = 0; i < DDR_DATA_REGS_NR; i++) {
 		writel(data->datardsratio0,
 			&(ddr_data_reg[nr]+i)->dt0rdsratio0);
@@ -121,11 +127,20 @@ void config_ddr_data(const struct ddr_data *data, int nr)
 	}
 }
 
-void config_io_ctrl(unsigned long val)
+void config_io_ctrl(const struct ctrl_ioregs *ioregs)
 {
-	writel(val, &ioctrl_reg->cm0ioctl);
-	writel(val, &ioctrl_reg->cm1ioctl);
-	writel(val, &ioctrl_reg->cm2ioctl);
-	writel(val, &ioctrl_reg->dt0ioctl);
-	writel(val, &ioctrl_reg->dt1ioctl);
+	if (!ioregs)
+		return;
+
+	writel(ioregs->cm0ioctl, &ioctrl_reg->cm0ioctl);
+	writel(ioregs->cm1ioctl, &ioctrl_reg->cm1ioctl);
+	writel(ioregs->cm2ioctl, &ioctrl_reg->cm2ioctl);
+	writel(ioregs->dt0ioctl, &ioctrl_reg->dt0ioctl);
+	writel(ioregs->dt1ioctl, &ioctrl_reg->dt1ioctl);
+#ifdef CONFIG_AM43XX
+	writel(ioregs->dt2ioctrl, &ioctrl_reg->dt2ioctrl);
+	writel(ioregs->dt3ioctrl, &ioctrl_reg->dt3ioctrl);
+	writel(ioregs->emif_sdram_config_ext,
+	       &ioctrl_reg->emif_sdram_config_ext);
+#endif
 }

arch/arm/cpu/armv7/am33xx/emif4.c

@@ -87,7 +87,7 @@ void __weak ddr_pll_config(unsigned int ddrpll_m)
 {
 }
 
-void config_ddr(unsigned int pll, unsigned int ioctrl,
+void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs,
 		const struct ddr_data *data, const struct cmd_control *ctrl,
 		const struct emif_regs *regs, int nr)
 {
@@ -99,12 +99,11 @@ void config_ddr(unsigned int pll, unsigned int ioctrl,
 
 	config_ddr_data(data, nr);
 #ifdef CONFIG_AM33XX
-	config_io_ctrl(ioctrl);
+	config_io_ctrl(ioregs);
 
 	/* Set CKE to be controlled by EMIF/DDR PHY */
 	writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
 #endif
-
 	/* Program EMIF instance */
 	config_ddr_phy(regs, nr);
 	set_sdram_timings(regs, nr);

board/compulab/cm_t335/spl.c

@@ -20,6 +20,14 @@
 #include <asm/arch/hardware_am33xx.h>
 #include <asm/sizes.h>
 
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.cm1ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.cm2ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.dt0ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.dt1ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+};
+
 static const struct ddr_data ddr3_data = {
 	.datardsratio0		= MT41J128MJT125_RD_DQS,
 	.datawdsratio0		= MT41J128MJT125_WR_DQS,
@@ -89,7 +97,7 @@ static void probe_sdram_size(long size)
 		reset_cpu(0);
 	}
 	debug("%s: setting DRAM size to %ldM\n", __func__, size >> 20);
-	config_ddr(303, MT41J128MJT125_IOCTRL_VALUE, &ddr3_data,
+	config_ddr(303, &ioregs, &ddr3_data,
 		   &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 }
 

board/isee/igep0033/board.c

@@ -77,9 +77,17 @@ void set_mux_conf_regs(void)
 	enable_board_pin_mux();
 }
 
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= K4B2G1646EBIH9_IOCTRL_VALUE,
+	.cm1ioctl		= K4B2G1646EBIH9_IOCTRL_VALUE,
+	.cm2ioctl		= K4B2G1646EBIH9_IOCTRL_VALUE,
+	.dt0ioctl		= K4B2G1646EBIH9_IOCTRL_VALUE,
+	.dt1ioctl		= K4B2G1646EBIH9_IOCTRL_VALUE,
+};
+
 void sdram_init(void)
 {
-	config_ddr(400, K4B2G1646EBIH9_IOCTRL_VALUE, &ddr3_data,
+	config_ddr(400, &ioregs, &ddr3_data,
 		   &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 }
 #endif

board/phytec/pcm051/board.c

@@ -50,6 +50,14 @@ const struct dpll_params *get_dpll_ddr_params(void)
 }
 
 #ifdef CONFIG_REV1
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= MT41J256M8HX15E_IOCTRL_VALUE,
+	.cm1ioctl		= MT41J256M8HX15E_IOCTRL_VALUE,
+	.cm2ioctl		= MT41J256M8HX15E_IOCTRL_VALUE,
+	.dt0ioctl		= MT41J256M8HX15E_IOCTRL_VALUE,
+	.dt1ioctl		= MT41J256M8HX15E_IOCTRL_VALUE,
+};
+
 static const struct ddr_data ddr3_data = {
 	.datardsratio0 = MT41J256M8HX15E_RD_DQS,
 	.datawdsratio0 = MT41J256M8HX15E_WR_DQS,
@@ -81,10 +89,18 @@ static struct emif_regs ddr3_emif_reg_data = {
 
 void sdram_init(void)
 {
-	config_ddr(DDR_CLK_MHZ, MT41J256M8HX15E_IOCTRL_VALUE, &ddr3_data,
+	config_ddr(DDR_CLK_MHZ, &ioregs, &ddr3_data,
 		   &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 }
 #else
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm2ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+};
+
 static const struct ddr_data ddr3_data = {
 	.datardsratio0 = MT41K256M16HA125E_RD_DQS,
 	.datawdsratio0 = MT41K256M16HA125E_WR_DQS,
@@ -116,7 +132,7 @@ static struct emif_regs ddr3_emif_reg_data = {
 
 void sdram_init(void)
 {
-	config_ddr(DDR_CLK_MHZ, MT41K256M16HA125E_IOCTRL_VALUE, &ddr3_data,
+	config_ddr(DDR_CLK_MHZ, &ioregs, &ddr3_data,
 		   &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 }
 #endif

board/siemens/dxr2/board.c

@@ -144,6 +144,10 @@ struct ddr_data dxr2_ddr3_data = {
 
 struct cmd_control dxr2_ddr3_cmd_ctrl_data = {
 };
+
+struct ctrl_ioregs dxr2_ddr3_ioregs = {
+};
+
 	/* pass values from eeprom */
 	dxr2_ddr3_emif_reg_data.sdram_tim1 = settings.ddr3.sdram_tim1;
 	dxr2_ddr3_emif_reg_data.sdram_tim2 = settings.ddr3.sdram_tim2;
@@ -165,7 +169,13 @@ struct cmd_control dxr2_ddr3_cmd_ctrl_data = {
 	dxr2_ddr3_cmd_ctrl_data.cmd2csratio = settings.ddr3.ddr3_sratio;
 	dxr2_ddr3_cmd_ctrl_data.cmd2iclkout = settings.ddr3.iclkout;
 
-	config_ddr(DDR_PLL_FREQ, settings.ddr3.ioctr_val, &dxr2_ddr3_data,
+	dxr2_ddr3_ioregs.cm0ioctl = settings.ddr3.ioctr_val,
+	dxr2_ddr3_ioregs.cm1ioctl = settings.ddr3.ioctr_val,
+	dxr2_ddr3_ioregs.cm2ioctl = settings.ddr3.ioctr_val,
+	dxr2_ddr3_ioregs.dt0ioctl = settings.ddr3.ioctr_val,
+	dxr2_ddr3_ioregs.dt1ioctl = settings.ddr3.ioctr_val,
+
+	config_ddr(DDR_PLL_FREQ, &dxr2_ddr3_ioregs, &dxr2_ddr3_data,
 		   &dxr2_ddr3_cmd_ctrl_data, &dxr2_ddr3_emif_reg_data, 0);
 }
 

board/siemens/pxm2/board.c

@@ -69,7 +69,15 @@ struct cmd_control pxm2_ddr3_cmd_ctrl_data = {
 	.cmd2iclkout = 0,
 };
 
-	config_ddr(DDR_PLL_FREQ, DXR2_IOCTRL_VAL, &pxm2_ddr3_data,
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= DXR2_IOCTRL_VAL,
+	.cm1ioctl		= DXR2_IOCTRL_VAL,
+	.cm2ioctl		= DXR2_IOCTRL_VAL,
+	.dt0ioctl		= DXR2_IOCTRL_VAL,
+	.dt1ioctl		= DXR2_IOCTRL_VAL,
+};
+
+	config_ddr(DDR_PLL_FREQ, &ioregs, &pxm2_ddr3_data,
 		   &pxm2_ddr3_cmd_ctrl_data, &pxm2_ddr3_emif_reg_data, 0);
 }
 

board/siemens/rut/board.c

@@ -74,7 +74,15 @@ struct cmd_control rut_ddr3_cmd_ctrl_data = {
 	.cmd2iclkout = 1,
 };
 
-	config_ddr(DDR_PLL_FREQ, RUT_IOCTRL_VAL, &rut_ddr3_data,
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= RUT_IOCTRL_VAL,
+	.cm1ioctl		= RUT_IOCTRL_VAL,
+	.cm2ioctl		= RUT_IOCTRL_VAL,
+	.dt0ioctl		= RUT_IOCTRL_VAL,
+	.dt1ioctl		= RUT_IOCTRL_VAL,
+};
+
+	config_ddr(DDR_PLL_FREQ, &ioregs, &rut_ddr3_data,
 		   &rut_ddr3_cmd_ctrl_data, &rut_ddr3_emif_reg_data, 0);
 }
 

board/ti/am335x/board.c

@@ -426,6 +426,38 @@ void set_mux_conf_regs(void)
 	enable_board_pin_mux(&header);
 }
 
+const struct ctrl_ioregs ioregs_evmsk = {
+	.cm0ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.cm1ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.cm2ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.dt0ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+	.dt1ioctl		= MT41J128MJT125_IOCTRL_VALUE,
+};
+
+const struct ctrl_ioregs ioregs_bonelt = {
+	.cm0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.cm2ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt0ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+	.dt1ioctl		= MT41K256M16HA125E_IOCTRL_VALUE,
+};
+
+const struct ctrl_ioregs ioregs_evm15 = {
+	.cm0ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
+	.cm1ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
+	.cm2ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
+	.dt0ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
+	.dt1ioctl		= MT41J512M8RH125_IOCTRL_VALUE,
+};
+
+const struct ctrl_ioregs ioregs = {
+	.cm0ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.cm1ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.cm2ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.dt0ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+	.dt1ioctl		= MT47H128M16RT25E_IOCTRL_VALUE,
+};
+
 void sdram_init(void)
 {
 	__maybe_unused struct am335x_baseboard_id header;
@@ -443,18 +475,18 @@ void sdram_init(void)
 	}
 
 	if (board_is_evm_sk(&header))
-		config_ddr(303, MT41J128MJT125_IOCTRL_VALUE, &ddr3_data,
+		config_ddr(303, &ioregs_evmsk, &ddr3_data,
 			   &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 	else if (board_is_bone_lt(&header))
-		config_ddr(400, MT41K256M16HA125E_IOCTRL_VALUE,
+		config_ddr(400, &ioregs_bonelt,
 			   &ddr3_beagleblack_data,
 			   &ddr3_beagleblack_cmd_ctrl_data,
 			   &ddr3_beagleblack_emif_reg_data, 0);
 	else if (board_is_evm_15_or_later(&header))
-		config_ddr(303, MT41J512M8RH125_IOCTRL_VALUE, &ddr3_evm_data,
+		config_ddr(303, &ioregs_evm15, &ddr3_evm_data,
 			   &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0);
 	else
-		config_ddr(266, MT47H128M16RT25E_IOCTRL_VALUE, &ddr2_data,
+		config_ddr(266, &ioregs, &ddr2_data,
 			   &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0);
 }
 #endif

board/ti/ti814x/evm.c

@@ -95,9 +95,9 @@ void sdram_init(void)
 {
 	config_dmm(&evm_lisa_map_regs);
 
-	config_ddr(0, 0, &evm_ddr2_data, &evm_ddr2_cctrl_data,
+	config_ddr(0, NULL, &evm_ddr2_data, &evm_ddr2_cctrl_data,
 		   &evm_ddr2_emif0_regs, 0);
-	config_ddr(0, 0, &evm_ddr2_data, &evm_ddr2_cctrl_data,
+	config_ddr(0, NULL, &evm_ddr2_data, &evm_ddr2_cctrl_data,
 		   &evm_ddr2_emif1_regs, 1);
 }
 #endif

board/ti/ti816x/evm.c

@@ -191,22 +191,26 @@ void sdram_init(void)
 	if (CONFIG_TI816X_USE_EMIF0) {
 		ddr2_emif0_regs.emif_ddr_phy_ctlr_1 =
 			(get_cpu_rev() == 0x1 ? 0x0000010B : 0x0000030B);
-		config_ddr(0, 0, &ddr2_data, &ddr2_ctrl, &ddr2_emif0_regs, 0);
+		config_ddr(0, NULL, &ddr2_data, &ddr2_ctrl, &ddr2_emif0_regs,
+			   0);
 	}
 
 	if (CONFIG_TI816X_USE_EMIF1) {
 		ddr2_emif1_regs.emif_ddr_phy_ctlr_1 =
 			(get_cpu_rev() == 0x1 ? 0x0000010B : 0x0000030B);
-		config_ddr(1, 0, &ddr2_data, &ddr2_ctrl, &ddr2_emif1_regs, 1);
+		config_ddr(1, NULL, &ddr2_data, &ddr2_ctrl, &ddr2_emif1_regs,
+			   1);
 	}
 #endif
 
 #ifdef CONFIG_TI816X_EVM_DDR3
 	if (CONFIG_TI816X_USE_EMIF0)
-		config_ddr(0, 0, &ddr3_data, &ddr3_ctrl, &ddr3_emif0_regs, 0);
+		config_ddr(0, NULL, &ddr3_data, &ddr3_ctrl, &ddr3_emif0_regs,
+			   0);
 
 	if (CONFIG_TI816X_USE_EMIF1)
-		config_ddr(1, 0, &ddr3_data, &ddr3_ctrl, &ddr3_emif1_regs, 1);
+		config_ddr(1, NULL, &ddr3_data, &ddr3_ctrl, &ddr3_emif1_regs,
+			   1);
 #endif
 }
 #endif /* CONFIG_SPL_BUILD */