aboutsummaryrefslogtreecommitdiffstats
path: root/roms/u-boot/board/synopsys/axs10x/axs10x.c
diff options
context:
space:
mode:
authorAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
committerAngelos Mouzakitis <a.mouzakitis@virtualopensystems.com>2023-10-10 14:33:42 +0000
commitaf1a266670d040d2f4083ff309d732d648afba2a (patch)
tree2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/board/synopsys/axs10x/axs10x.c
parente02cda008591317b1625707ff8e115a4841aa889 (diff)
Add submodule dependency filesHEADmaster
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/synopsys/axs10x/axs10x.c')
-rw-r--r--roms/u-boot/board/synopsys/axs10x/axs10x.c94
1 files changed, 94 insertions, 0 deletions
diff --git a/roms/u-boot/board/synopsys/axs10x/axs10x.c b/roms/u-boot/board/synopsys/axs10x/axs10x.c
new file mode 100644
index 000000000..75e4d0376
--- /dev/null
+++ b/roms/u-boot/board/synopsys/axs10x/axs10x.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ */
+
+#include <common.h>
+#include <cpu_func.h>
+#include <dwmmc.h>
+#include <init.h>
+#include <malloc.h>
+#include <asm/arcregs.h>
+#include <asm/global_data.h>
+#include "axs10x.h"
+#include <asm/cache.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define AXS_MB_CREG 0xE0011000
+
+int board_early_init_f(void)
+{
+ if (readl((void __iomem *)AXS_MB_CREG + 0x234) & (1 << 28))
+ gd->board_type = AXS_MB_V3;
+ else
+ gd->board_type = AXS_MB_V2;
+
+ return 0;
+}
+
+#ifdef CONFIG_ISA_ARCV2
+
+void board_jump_and_run(ulong entry, int zero, int arch, uint params)
+{
+ void (*kernel_entry)(int zero, int arch, uint params);
+
+ kernel_entry = (void (*)(int, int, uint))entry;
+
+ smp_set_core_boot_addr(entry, -1);
+ smp_kick_all_cpus();
+ kernel_entry(zero, arch, params);
+}
+
+#define RESET_VECTOR_ADDR 0x0
+
+void smp_set_core_boot_addr(unsigned long addr, int corenr)
+{
+ /* All cores have reset vector pointing to 0 */
+ writel(addr, (void __iomem *)RESET_VECTOR_ADDR);
+
+ /* Make sure other cores see written value in memory */
+ flush_dcache_all();
+}
+
+void smp_kick_all_cpus(void)
+{
+/* CPU start CREG */
+#define AXC003_CREG_CPU_START 0xF0001400
+/* Bits positions in CPU start CREG */
+#define BITS_START 0
+#define BITS_START_MODE 4
+#define BITS_CORE_SEL 9
+
+/*
+ * In axs103 v1.1 START bits semantics has changed quite a bit.
+ * We used to have a generic START bit for all cores selected by CORE_SEL mask.
+ * But now we don't touch CORE_SEL at all because we have a dedicated START bit
+ * for each core:
+ * bit 0: Core 0 (master)
+ * bit 1: Core 1 (slave)
+ */
+#define BITS_START_CORE1 1
+
+#define ARCVER_HS38_3_0 0x53
+
+ int core_family = read_aux_reg(ARC_AUX_IDENTITY) & 0xff;
+ int cmd = readl((void __iomem *)AXC003_CREG_CPU_START);
+
+ if (core_family < ARCVER_HS38_3_0) {
+ cmd |= (1 << BITS_CORE_SEL) | (1 << BITS_START);
+ cmd &= ~(1 << BITS_START_MODE);
+ } else {
+ cmd |= (1 << BITS_START_CORE1);
+ }
+ writel(cmd, (void __iomem *)AXC003_CREG_CPU_START);
+}
+#endif
+
+int checkboard(void)
+{
+ printf("Board: ARC Software Development Platform AXS%s\n",
+ is_isa_arcv2() ? "103" : "101");
+
+ return 0;
+};