COBJS-y := timer.o
COBJS-y += cpu.o
+COBJS-y += slcr.o
COBJS := $(COBJS-y)
* MA 02111-1307 USA
*/
#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/hardware.h>
-inline void lowlevel_init(void) {}
+void lowlevel_init(void)
+{
+ zynq_slcr_unlock();
+ /* remap DDR to zero, FILTERSTART */
+ writel(0, &scu_base->filter_start);
+
+ /* Device config APB, unlock the PCAP */
+ writel(0x757BDF0D, &devcfg_base->unlock);
+ writel(0xFFFFFFFF, &devcfg_base->rom_shadow);
+
+ /* 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);
+ /* TZ_DDR_RAM, Set DDR trust zone non-secure */
+ writel(0xFFFFFFFF, &slcr_base->trust_zone);
+ /* Set urgent bits with register */
+ writel(0x0, &slcr_base->ddr_urgent_sel);
+ /* Urgent write, ports S2/S3 */
+ writel(0xC, &slcr_base->ddr_urgent);
+
+ zynq_slcr_lock();
+}
void reset_cpu(ulong addr)
{
+ zynq_slcr_cpu_reset();
while (1)
;
}
--- /dev/null
+/*
+ * Copyright (c) 2013 Xilinx Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <malloc.h>
+#include <asm/arch/hardware.h>
+
+#define SLCR_LOCK_MAGIC 0x767B
+#define SLCR_UNLOCK_MAGIC 0xDF0D
+
+static int slcr_lock = 1; /* 1 means locked, 0 means unlocked */
+
+void zynq_slcr_lock(void)
+{
+ if (!slcr_lock)
+ writel(SLCR_LOCK_MAGIC, &slcr_base->slcr_lock);
+}
+
+void zynq_slcr_unlock(void)
+{
+ if (slcr_lock)
+ writel(SLCR_UNLOCK_MAGIC, &slcr_base->slcr_unlock);
+}
+
+/* Reset the entire system */
+void zynq_slcr_cpu_reset(void)
+{
+ /*
+ * Unlock the SLCR then reset the system.
+ * Note that this seems to require raw i/o
+ * functions or there's a lockup?
+ */
+ zynq_slcr_unlock();
+
+ /*
+ * Clear 0x0F000000 bits of reboot status register to workaround
+ * the FSBL not loading the bitstream after soft-reboot
+ * This is a temporary solution until we know more.
+ */
+ clrbits_le32(&slcr_base->reboot_status, 0xF000000);
+
+ writel(1, &slcr_base->pss_rst_ctrl);
+}
--- /dev/null
+/*
+ * Copyright (c) 2013 Xilinx Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_ARCH_HARDWARE_H
+#define _ASM_ARCH_HARDWARE_H
+
+#define XPSS_SYS_CTRL_BASEADDR 0xF8000000
+#define XPSS_DEV_CFG_APB_BASEADDR 0xF8007000
+#define XPSS_SCU_BASEADDR 0xF8F00000
+
+/* Reflect slcr offsets */
+struct slcr_regs {
+ u32 scl; /* 0x0 */
+ u32 slcr_lock; /* 0x4 */
+ u32 slcr_unlock; /* 0x8 */
+ u32 reserved1[125];
+ u32 pss_rst_ctrl; /* 0x200 */
+ u32 reserved2[15];
+ u32 fpga_rst_ctrl; /* 0x240 */
+ u32 reserved3[5];
+ u32 reboot_status; /* 0x258 */
+ u32 boot_mode; /* 0x25c */
+ u32 reserved4[116];
+ u32 trust_zone; /* 0x430 */ /* FIXME */
+ u32 reserved5[115];
+ u32 ddr_urgent; /* 0x600 */
+ u32 reserved6[6];
+ u32 ddr_urgent_sel; /* 0x61c */
+ u32 reserved7[188];
+ u32 ocm_cfg; /* 0x910 */
+};
+
+#define slcr_base ((struct slcr_regs *) XPSS_SYS_CTRL_BASEADDR)
+
+struct devcfg_regs {
+ u32 ctrl; /* 0x0 */
+ u32 lock; /* 0x4 */
+ u32 cfg; /* 0x8 */
+ u32 int_sts; /* 0xc */
+ u32 int_mask; /* 0x10 */
+ u32 status; /* 0x14 */
+ u32 dma_src_addr; /* 0x18 */
+ u32 dma_dst_addr; /* 0x1c */
+ u32 dma_src_len; /* 0x20 */
+ u32 dma_dst_len; /* 0x24 */
+ u32 rom_shadow; /* 0x28 */
+ u32 reserved1[2];
+ u32 unlock; /* 0x34 */
+ u32 reserved2[18];
+ u32 mctrl; /* 0x80 */
+ u32 reserved3;
+ u32 write_count; /* 0x88 */
+ u32 read_count; /* 0x8c */
+};
+
+#define devcfg_base ((struct devcfg_regs *) XPSS_DEV_CFG_APB_BASEADDR)
+
+struct scu_regs {
+ u32 reserved1[16];
+ u32 filter_start; /* 0x40 */
+ u32 filter_end; /* 0x44 */
+};
+
+#define scu_base ((struct scu_regs *) XPSS_SCU_BASEADDR)
+
+#endif /* _ASM_ARCH_HARDWARE_H */
--- /dev/null
+/*
+ * Copyright (c) 2013 Xilinx Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _SYS_PROTO_H_
+#define _SYS_PROTO_H_
+
+extern void zynq_slcr_lock(void);
+extern void zynq_slcr_unlock(void);
+extern void zynq_slcr_cpu_reset(void);
+
+#endif /* _SYS_PROTO_H_ */
kzm9g arm armv7 kzm9g kmc rmobile
armadillo-800eva arm armv7 armadillo-800eva atmark-techno rmobile
zynq arm armv7 zynq xilinx zynq
+zynq_dcc arm armv7 zynq xilinx zynq zynq:ZYNQ_DCC
socfpga_cyclone5 arm armv7 socfpga_cyclone5 altera socfpga
actux1_4_16 arm ixp actux1 - - actux1:FLASH2X2
actux1_4_32 arm ixp actux1 - - actux1:FLASH2X2,RAM_32MB
#define CONFIG_ZYNQ_GEM
#define CONFIG_ZYNQ_GEM_BASEADDR0 0xE000B000
+#if defined(CONFIG_ZYNQ_DCC)
+# define CONFIG_ARM_DCC
+# define CONFIG_CPU_V6 /* Required by CONFIG_ARM_DCC */
+#endif
+
#define CONFIG_BOOTP_SERVERIP
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
projects / karo-tx-uboot.git / commitdiff