/*
* 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <malloc.h>
#include <asm/arch/hardware.h>
+#include <asm/arch/clk.h>
#define SLCR_LOCK_MAGIC 0x767B
#define SLCR_UNLOCK_MAGIC 0xDF0D
+#define SLCR_IDCODE_MASK 0x1F000
+#define SLCR_IDCODE_SHIFT 12
+
static int slcr_lock = 1; /* 1 means locked, 0 means unlocked */
void zynq_slcr_lock(void)
writel(1, &slcr_base->pss_rst_ctrl);
}
+
+/* Setup clk for network */
+void zynq_slcr_gem_clk_setup(u32 gem_id, unsigned long clk_rate)
+{
+ int ret;
+
+ zynq_slcr_unlock();
+
+ if (gem_id > 1) {
+ printf("Non existing GEM id %d\n", gem_id);
+ goto out;
+ }
+
+ ret = zynq_clk_set_rate(gem0_clk + gem_id, clk_rate);
+ if (ret)
+ goto out;
+
+ if (gem_id) {
+ /* Configure GEM_RCLK_CTRL */
+ writel(1, &slcr_base->gem1_rclk_ctrl);
+ } else {
+ /* Configure GEM_RCLK_CTRL */
+ writel(1, &slcr_base->gem0_rclk_ctrl);
+ }
+ udelay(100000);
+out:
+ zynq_slcr_lock();
+}
+
+void zynq_slcr_devcfg_disable(void)
+{
+ zynq_slcr_unlock();
+
+ /* Disable AXI interface */
+ writel(0xFFFFFFFF, &slcr_base->fpga_rst_ctrl);
+
+ /* Set Level Shifters DT618760 */
+ writel(0xA, &slcr_base->lvl_shftr_en);
+
+ zynq_slcr_lock();
+}
+
+void zynq_slcr_devcfg_enable(void)
+{
+ zynq_slcr_unlock();
+
+ /* Set Level Shifters DT618760 */
+ writel(0xF, &slcr_base->lvl_shftr_en);
+
+ /* Disable AXI interface */
+ writel(0x0, &slcr_base->fpga_rst_ctrl);
+
+ zynq_slcr_lock();
+}
+
+u32 zynq_slcr_get_boot_mode(void)
+{
+ /* Get the bootmode register value */
+ return readl(&slcr_base->boot_mode);
+}
+
+u32 zynq_slcr_get_idcode(void)
+{
+ return (readl(&slcr_base->pss_idcode) & SLCR_IDCODE_MASK) >>
+ SLCR_IDCODE_SHIFT;
+}