X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-uboot.git;a=blobdiff_plain;f=arch%2Farm%2Fcpu%2Farmv7%2Fam33xx%2Femif4.c;h=27fa3fb4628bbfa08ff38a29386d09144e799668;hp=01e3a5204ea96f7a91d2ab9da6d64ee31a311d94;hb=f37a3043cbbda8e084798a217d6f0c1ebe6e26b0;hpb=4c25761337570e63e9e2631a81de221e692251e3

diff --git a/arch/arm/cpu/armv7/am33xx/emif4.c b/arch/arm/cpu/armv7/am33xx/emif4.c
index 01e3a5204e..27fa3fb462 100644
--- a/arch/arm/cpu/armv7/am33xx/emif4.c
+++ b/arch/arm/cpu/armv7/am33xx/emif4.c
@@ -5,15 +5,7 @@
  *
  * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE.  See the
- * GNU General Public License for more details.
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
@@ -29,6 +21,10 @@ DECLARE_GLOBAL_DATA_PTR;
 
 int dram_init(void)
 {
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+	sdram_init();
+#endif
+
 	/* dram_init must store complete ramsize in gd->ram_size */
 	gd->ram_size = get_ram_size(
 			(void *)CONFIG_SYS_SDRAM_BASE,
@@ -43,45 +39,102 @@ void dram_init_banksize(void)
 }
 
 
-#ifdef CONFIG_SPL_BUILD
-static struct vtp_reg *vtpreg = (struct vtp_reg *)VTP0_CTRL_ADDR;
+#ifndef CONFIG_SKIP_LOWLEVEL_INIT
+#ifdef CONFIG_TI81XX
+static struct dmm_lisa_map_regs *hw_lisa_map_regs =
+				(struct dmm_lisa_map_regs *)DMM_BASE;
+#endif
+#ifndef CONFIG_TI816X
+static struct vtp_reg *vtpreg[2] = {
+				(struct vtp_reg *)VTP0_CTRL_ADDR,
+				(struct vtp_reg *)VTP1_CTRL_ADDR};
+#endif
+#ifdef CONFIG_AM33XX
+static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
+#endif
+#ifdef CONFIG_AM43XX
 static struct ddr_ctrl *ddrctrl = (struct ddr_ctrl *)DDR_CTRL_ADDR;
+static struct cm_device_inst *cm_device =
+				(struct cm_device_inst *)CM_DEVICE_INST;
+#endif
+
+#ifdef CONFIG_TI81XX
+void config_dmm(const struct dmm_lisa_map_regs *regs)
+{
+	enable_dmm_clocks();
+
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_3);
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_2);
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_1);
+	writel(0, &hw_lisa_map_regs->dmm_lisa_map_0);
+
+	writel(regs->dmm_lisa_map_3, &hw_lisa_map_regs->dmm_lisa_map_3);
+	writel(regs->dmm_lisa_map_2, &hw_lisa_map_regs->dmm_lisa_map_2);
+	writel(regs->dmm_lisa_map_1, &hw_lisa_map_regs->dmm_lisa_map_1);
+	writel(regs->dmm_lisa_map_0, &hw_lisa_map_regs->dmm_lisa_map_0);
+}
+#endif
 
-static void config_vtp(void)
+#ifndef CONFIG_TI816X
+static void config_vtp(int nr)
 {
-	writel(readl(&vtpreg->vtp0ctrlreg) | VTP_CTRL_ENABLE,
-			&vtpreg->vtp0ctrlreg);
-	writel(readl(&vtpreg->vtp0ctrlreg) & (~VTP_CTRL_START_EN),
-			&vtpreg->vtp0ctrlreg);
-	writel(readl(&vtpreg->vtp0ctrlreg) | VTP_CTRL_START_EN,
-			&vtpreg->vtp0ctrlreg);
+	writel(readl(&vtpreg[nr]->vtp0ctrlreg) | VTP_CTRL_ENABLE,
+			&vtpreg[nr]->vtp0ctrlreg);
+	writel(readl(&vtpreg[nr]->vtp0ctrlreg) & (~VTP_CTRL_START_EN),
+			&vtpreg[nr]->vtp0ctrlreg);
+	writel(readl(&vtpreg[nr]->vtp0ctrlreg) | VTP_CTRL_START_EN,
+			&vtpreg[nr]->vtp0ctrlreg);
 
 	/* Poll for READY */
-	while ((readl(&vtpreg->vtp0ctrlreg) & VTP_CTRL_READY) !=
+	while ((readl(&vtpreg[nr]->vtp0ctrlreg) & VTP_CTRL_READY) !=
 			VTP_CTRL_READY)
 		;
 }
+#endif
+
+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)
+		const struct emif_regs *regs, int nr)
 {
-	enable_emif_clocks();
 	ddr_pll_config(pll);
-	config_vtp();
-	config_cmd_ctrl(ctrl);
+#ifndef CONFIG_TI816X
+	config_vtp(nr);
+#endif
+	config_cmd_ctrl(ctrl, nr);
 
-	config_ddr_data(0, data);
-	config_ddr_data(1, data);
+	config_ddr_data(data, nr);
+#ifdef CONFIG_AM33XX
+	config_io_ctrl(ioregs);
 
-	config_io_ctrl(ioctrl);
+	/* Set CKE to be controlled by EMIF/DDR PHY */
+	writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
+
+#endif
+#ifdef CONFIG_AM43XX
+	writel(readl(&cm_device->cm_dll_ctrl) & ~0x1, &cm_device->cm_dll_ctrl);
+	while ((readl(&cm_device->cm_dll_ctrl) & CM_DLL_READYST) == 0)
+		;
+
+	config_io_ctrl(ioregs);
 
 	/* Set CKE to be controlled by EMIF/DDR PHY */
 	writel(DDR_CKE_CTRL_NORMAL, &ddrctrl->ddrckectrl);
 
+	if (emif_sdram_type(regs->sdram_config) == EMIF_SDRAM_TYPE_DDR3)
+		/* Allow EMIF to control DDR_RESET */
+		writel(0x00000000, &ddrctrl->ddrioctrl);
+#endif
+
 	/* Program EMIF instance */
-	config_ddr_phy(regs);
-	set_sdram_timings(regs);
-	config_sdram(regs);
+	config_ddr_phy(regs, nr);
+	set_sdram_timings(regs, nr);
+	if (get_emif_rev(EMIF1_BASE) == EMIF_4D5)
+		config_sdram_emif4d5(regs, nr);
+	else
+		config_sdram(regs, nr);
 }
 #endif