| /* |
| * Copyright 2011 Freescale Semiconductor, Inc. |
| * Copyright 2011 Linaro Ltd. |
| * |
| * The code contained herein is licensed under the GNU General Public |
| * License. You may obtain a copy of the GNU General Public License |
| * Version 2 or later at the following locations: |
| * |
| * http://www.opensource.org/licenses/gpl-license.html |
| * http://www.gnu.org/copyleft/gpl.html |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/io.h> |
| #include <linux/of.h> |
| #include <linux/of_address.h> |
| #include <asm/unified.h> |
| |
| #define SRC_SCR 0x000 |
| #define SRC_GPR1 0x020 |
| #define BP_SRC_SCR_CORE1_RST 14 |
| #define BP_SRC_SCR_CORE1_ENABLE 22 |
| |
| static void __iomem *src_base; |
| |
| void imx_enable_cpu(int cpu, bool enable) |
| { |
| u32 mask, val; |
| |
| mask = 1 << (BP_SRC_SCR_CORE1_ENABLE + cpu - 1); |
| val = readl_relaxed(src_base + SRC_SCR); |
| val = enable ? val | mask : val & ~mask; |
| writel_relaxed(val, src_base + SRC_SCR); |
| } |
| |
| void imx_set_cpu_jump(int cpu, void *jump_addr) |
| { |
| writel_relaxed(BSYM(virt_to_phys(jump_addr)), |
| src_base + SRC_GPR1 + cpu * 8); |
| } |
| |
| void __init imx_src_init(void) |
| { |
| struct device_node *np; |
| |
| np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-src"); |
| src_base = of_iomap(np, 0); |
| WARN_ON(!src_base); |
| } |
