Add qemu 2.4.0

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

diff --git a/qemu/roms/u-boot/arch/arm/cpu/armv7/zynq/cpu.c b/qemu/roms/u-boot/arch/arm/cpu/armv7/zynq/cpu.c
new file mode 100644 (file)
index 0000000..7626b5c
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/armv7/zynq/cpu.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2012 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2012 Xilinx, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/hardware.h>
+
+void lowlevel_init(void)
+{
+}
+
+int arch_cpu_init(void)
+{
+       zynq_slcr_unlock();
+#ifndef CONFIG_SPL_BUILD
+       /* Device config APB, unlock the PCAP */
+       writel(0x757BDF0D, &devcfg_base->unlock);
+       writel(0xFFFFFFFF, &devcfg_base->rom_shadow);
+
+#if (CONFIG_SYS_SDRAM_BASE == 0)
+       /* remap DDR to zero, FILTERSTART */
+       writel(0, &scu_base->filter_start);
+
+       /* OCM_CFG, Mask out the ROM, map ram into upper addresses */
+       writel(0x1F, &slcr_base->ocm_cfg);
+       /* FPGA_RST_CTRL, clear resets on AXI fabric ports */
+       writel(0x0, &slcr_base->fpga_rst_ctrl);
+       /* Set urgent bits with register */
+       writel(0x0, &slcr_base->ddr_urgent_sel);
+       /* Urgent write, ports S2/S3 */
+       writel(0xC, &slcr_base->ddr_urgent);
+#endif
+#endif
+       zynq_clk_early_init();
+       zynq_slcr_lock();
+
+       return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+       zynq_slcr_cpu_reset();
+       while (1)
+               ;
+}
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+       /* Enable D-cache. I-cache is already enabled in start.S */
+       dcache_enable();
+}
+#endif