X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farmv7%2Fzynq%2Fcpu.c;fp=qemu%2Froms%2Fu-boot%2Farch%2Farm%2Fcpu%2Farmv7%2Fzynq%2Fcpu.c;h=7626b5c1a3b5e85a18e8560b438cf67ad1ce75b6;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

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
index 000000000..7626b5c1a
--- /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