Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / armv7 / am33xx / emif4.c

diff --git a/qemu/roms/u-boot/arch/arm/cpu/armv7/am33xx/emif4.c b/qemu/roms/u-boot/arch/arm/cpu/armv7/am33xx/emif4.c
new file mode 100644 (file)
index 0000000..2c67c32
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/armv7/am33xx/emif4.c
@@ -0,0 +1,132 @@
+/*
+ * emif4.c
+ *
+ * AM33XX emif4 configuration file
+ *
+ * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/ddr_defs.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/io.h>
+#include <asm/emif.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+       /* dram_init must store complete ramsize in gd->ram_size */
+       gd->ram_size = get_ram_size(
+                       (void *)CONFIG_SYS_SDRAM_BASE,
+                       CONFIG_MAX_RAM_BANK_SIZE);
+       return 0;
+}
+
+void dram_init_banksize(void)
+{
+       gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+       gd->bd->bi_dram[0].size = gd->ram_size;
+}
+
+
+#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
+
+#ifndef CONFIG_TI816X
+static void config_vtp(int nr)
+{
+       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[nr]->vtp0ctrlreg) & VTP_CTRL_READY) !=
+                       VTP_CTRL_READY)
+               ;
+}
+#endif
+
+void __weak ddr_pll_config(unsigned int ddrpll_m)
+{
+}
+
+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)
+{
+       ddr_pll_config(pll);
+#ifndef CONFIG_TI816X
+       config_vtp(nr);
+#endif
+       config_cmd_ctrl(ctrl, nr);
+
+       config_ddr_data(data, nr);
+#ifdef CONFIG_AM33XX
+       config_io_ctrl(ioregs);
+
+       /* 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)
+               ;
+       writel(0x80000000, &ddrctrl->ddrioctrl);
+
+       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);
+       if (get_emif_rev(EMIF1_BASE) == EMIF_4D5)
+               config_sdram_emif4d5(regs, nr);
+       else
+               config_sdram(regs, nr);
+}
+#endif