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authorMichal Simek <michal.simek@xilinx.com>2019-01-17 08:22:43 +0100
committerMichal Simek <michal.simek@xilinx.com>2019-01-24 10:03:44 +0100
commit274ccb5b1175e1d87a5b2eaf2f82826b079382b5 (patch)
treed083fcac2d704921aee49601cb650ed9397cca0a /arch/arm/mach-zynqmp/cpu.c
parent495c7303a9c3d6a1803cece87978dc99302701da (diff)
arm64: zynqmp: Move SoC sources to mach-zynqmp
Similar changes was done for Zynq in past and this patch just follow this pattern to separate cpu code from SoC code. Move arch/arm/cpu/armv8/zynqmp/* -> arch/arm/mach-zynqmp/* And also fix references to these files. Based on "ARM: zynq: move SoC sources to mach-zynq" (sha1: 0107f2403669f764ab726d0d404e35bb9447bbcc) Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'arch/arm/mach-zynqmp/cpu.c')
-rw-r--r--arch/arm/mach-zynqmp/cpu.c260
1 files changed, 260 insertions, 0 deletions
diff --git a/arch/arm/mach-zynqmp/cpu.c b/arch/arm/mach-zynqmp/cpu.c
new file mode 100644
index 0000000000..5ef1a52862
--- /dev/null
+++ b/arch/arm/mach-zynqmp/cpu.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2014 - 2015 Xilinx, Inc.
+ * Michal Simek <michal.simek@xilinx.com>
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/armv8/mmu.h>
+#include <asm/io.h>
+
+#define ZYNQ_SILICON_VER_MASK 0xF000
+#define ZYNQ_SILICON_VER_SHIFT 12
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Number of filled static entries and also the first empty
+ * slot in zynqmp_mem_map.
+ */
+#define ZYNQMP_MEM_MAP_USED 4
+
+#if !defined(CONFIG_ZYNQMP_NO_DDR)
+#define DRAM_BANKS CONFIG_NR_DRAM_BANKS
+#else
+#define DRAM_BANKS 0
+#endif
+
+#if defined(CONFIG_DEFINE_TCM_OCM_MMAP)
+#define TCM_MAP 1
+#else
+#define TCM_MAP 0
+#endif
+
+/* +1 is end of list which needs to be empty */
+#define ZYNQMP_MEM_MAP_MAX (ZYNQMP_MEM_MAP_USED + DRAM_BANKS + TCM_MAP + 1)
+
+static struct mm_region zynqmp_mem_map[ZYNQMP_MEM_MAP_MAX] = {
+ {
+ .virt = 0x80000000UL,
+ .phys = 0x80000000UL,
+ .size = 0x70000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ .virt = 0xf8000000UL,
+ .phys = 0xf8000000UL,
+ .size = 0x07e00000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ .virt = 0x400000000UL,
+ .phys = 0x400000000UL,
+ .size = 0x400000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ .virt = 0x1000000000UL,
+ .phys = 0x1000000000UL,
+ .size = 0xf000000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }
+};
+
+void mem_map_fill(void)
+{
+ int banks = ZYNQMP_MEM_MAP_USED;
+
+#if defined(CONFIG_DEFINE_TCM_OCM_MMAP)
+ zynqmp_mem_map[banks].virt = 0xffe00000UL;
+ zynqmp_mem_map[banks].phys = 0xffe00000UL;
+ zynqmp_mem_map[banks].size = 0x00200000UL;
+ zynqmp_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE;
+ banks = banks + 1;
+#endif
+
+#if !defined(CONFIG_ZYNQMP_NO_DDR)
+ for (int i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+ /* Zero size means no more DDR that's this is end */
+ if (!gd->bd->bi_dram[i].size)
+ break;
+
+ zynqmp_mem_map[banks].virt = gd->bd->bi_dram[i].start;
+ zynqmp_mem_map[banks].phys = gd->bd->bi_dram[i].start;
+ zynqmp_mem_map[banks].size = gd->bd->bi_dram[i].size;
+ zynqmp_mem_map[banks].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE;
+ banks = banks + 1;
+ }
+#endif
+}
+
+struct mm_region *mem_map = zynqmp_mem_map;
+
+u64 get_page_table_size(void)
+{
+ return 0x14000;
+}
+
+#if defined(CONFIG_SYS_MEM_RSVD_FOR_MMU) || defined(CONFIG_DEFINE_TCM_OCM_MMAP)
+void tcm_init(u8 mode)
+{
+ puts("WARNING: Initializing TCM overwrites TCM content\n");
+ initialize_tcm(mode);
+ memset((void *)ZYNQMP_TCM_BASE_ADDR, 0, ZYNQMP_TCM_SIZE);
+}
+#endif
+
+#ifdef CONFIG_SYS_MEM_RSVD_FOR_MMU
+int reserve_mmu(void)
+{
+ tcm_init(TCM_LOCK);
+ gd->arch.tlb_size = PGTABLE_SIZE;
+ gd->arch.tlb_addr = ZYNQMP_TCM_BASE_ADDR;
+
+ return 0;
+}
+#endif
+
+static unsigned int zynqmp_get_silicon_version_secure(void)
+{
+ u32 ver;
+
+ ver = readl(&csu_base->version);
+ ver &= ZYNQMP_SILICON_VER_MASK;
+ ver >>= ZYNQMP_SILICON_VER_SHIFT;
+
+ return ver;
+}
+
+unsigned int zynqmp_get_silicon_version(void)
+{
+ if (current_el() == 3)
+ return zynqmp_get_silicon_version_secure();
+
+ gd->cpu_clk = get_tbclk();
+
+ switch (gd->cpu_clk) {
+ case 50000000:
+ return ZYNQMP_CSU_VERSION_QEMU;
+ }
+
+ return ZYNQMP_CSU_VERSION_SILICON;
+}
+
+#define ZYNQMP_MMIO_READ 0xC2000014
+#define ZYNQMP_MMIO_WRITE 0xC2000013
+
+int __maybe_unused invoke_smc(u32 pm_api_id, u32 arg0, u32 arg1, u32 arg2,
+ u32 arg3, u32 *ret_payload)
+{
+ /*
+ * Added SIP service call Function Identifier
+ * Make sure to stay in x0 register
+ */
+ struct pt_regs regs;
+
+ regs.regs[0] = pm_api_id;
+ regs.regs[1] = ((u64)arg1 << 32) | arg0;
+ regs.regs[2] = ((u64)arg3 << 32) | arg2;
+
+ smc_call(&regs);
+
+ if (ret_payload != NULL) {
+ ret_payload[0] = (u32)regs.regs[0];
+ ret_payload[1] = upper_32_bits(regs.regs[0]);
+ ret_payload[2] = (u32)regs.regs[1];
+ ret_payload[3] = upper_32_bits(regs.regs[1]);
+ ret_payload[4] = (u32)regs.regs[2];
+ }
+
+ return regs.regs[0];
+}
+
+unsigned int __maybe_unused zynqmp_pmufw_version(void)
+{
+ int ret;
+ u32 ret_payload[PAYLOAD_ARG_CNT];
+ static u32 pm_api_version = ZYNQMP_PM_VERSION_INVALID;
+
+ /*
+ * Get PMU version only once and later
+ * just return stored values instead of
+ * asking PMUFW again.
+ */
+ if (pm_api_version == ZYNQMP_PM_VERSION_INVALID) {
+ ret = invoke_smc(ZYNQMP_SIP_SVC_GET_API_VERSION, 0, 0, 0, 0,
+ ret_payload);
+ pm_api_version = ret_payload[1];
+
+ if (ret)
+ panic("PMUFW is not found - Please load it!\n");
+ }
+
+ return pm_api_version;
+}
+
+static int zynqmp_mmio_rawwrite(const u32 address,
+ const u32 mask,
+ const u32 value)
+{
+ u32 data;
+ u32 value_local = value;
+ int ret;
+
+ ret = zynqmp_mmio_read(address, &data);
+ if (ret)
+ return ret;
+
+ data &= ~mask;
+ value_local &= mask;
+ value_local |= data;
+ writel(value_local, (ulong)address);
+ return 0;
+}
+
+static int zynqmp_mmio_rawread(const u32 address, u32 *value)
+{
+ *value = readl((ulong)address);
+ return 0;
+}
+
+int zynqmp_mmio_write(const u32 address,
+ const u32 mask,
+ const u32 value)
+{
+ if (IS_ENABLED(CONFIG_SPL_BUILD) || current_el() == 3)
+ return zynqmp_mmio_rawwrite(address, mask, value);
+ else
+ return invoke_smc(ZYNQMP_MMIO_WRITE, address, mask,
+ value, 0, NULL);
+
+ return -EINVAL;
+}
+
+int zynqmp_mmio_read(const u32 address, u32 *value)
+{
+ u32 ret_payload[PAYLOAD_ARG_CNT];
+ u32 ret;
+
+ if (!value)
+ return -EINVAL;
+
+ if (IS_ENABLED(CONFIG_SPL_BUILD) || current_el() == 3) {
+ ret = zynqmp_mmio_rawread(address, value);
+ } else {
+ ret = invoke_smc(ZYNQMP_MMIO_READ, address, 0, 0,
+ 0, ret_payload);
+ *value = ret_payload[1];
+ }
+
+ return ret;
+}