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authorSang-Heon Jeon <ekffu200098@gmail.com>2026-08-24 01:18:14 +0900
committerJulia Lawall <Julia.Lawall@inria.fr>2026-08-23 22:12:11 +0200
commit2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c (patch)
treedcc4da1d99f17541c5590ac63c77da4bf372a4ab /arch/mips/generic/board-ocelot.c
downloadlinux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.tar.gz
linux-stable-2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c.zip
coccinelle: alloc_cast: drop removed allocatorsgrafted
- pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Diffstat (limited to 'arch/mips/generic/board-ocelot.c')
-rw-r--r--arch/mips/generic/board-ocelot.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/mips/generic/board-ocelot.c b/arch/mips/generic/board-ocelot.c
new file mode 100644
index 000000000..59a0fb243
--- /dev/null
+++ b/arch/mips/generic/board-ocelot.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Microsemi MIPS SoC support
+ *
+ * Copyright (c) 2017 Microsemi Corporation
+ */
+#include <linux/string.h>
+#include <asm/machine.h>
+#include <asm/prom.h>
+
+#define DEVCPU_GCB_CHIP_REGS_CHIP_ID 0x71070000
+#define CHIP_ID_PART_ID GENMASK(27, 12)
+
+#define OCELOT_PART_ID (0x7514 << 12)
+
+#define UART_UART 0x70100000
+
+static __init bool ocelot_detect(void)
+{
+ u32 rev;
+ int idx;
+
+ /* Look for the TLB entry set up by redboot before trying to use it */
+ write_c0_entryhi(DEVCPU_GCB_CHIP_REGS_CHIP_ID);
+ mtc0_tlbw_hazard();
+ tlb_probe();
+ tlb_probe_hazard();
+ idx = read_c0_index();
+ if (idx < 0)
+ return false;
+
+ /* A TLB entry exists, lets assume its usable and check the CHIP ID */
+ rev = __raw_readl((void __iomem *)DEVCPU_GCB_CHIP_REGS_CHIP_ID);
+
+ if ((rev & CHIP_ID_PART_ID) != OCELOT_PART_ID)
+ return false;
+
+ /* Copy command line from bootloader early for Initrd detection */
+ if (fw_arg0 < 10 && (fw_arg1 & 0xFFF00000) == 0x80000000) {
+ unsigned int prom_argc = fw_arg0;
+ const char **prom_argv = (const char **)fw_arg1;
+
+ if (prom_argc > 1 && strlen(prom_argv[1]) > 0)
+ /* ignore all built-in args if any f/w args given */
+ strscpy(arcs_cmdline, prom_argv[1]);
+ }
+
+ return true;
+}
+
+static void __init ocelot_earlyprintk_init(void)
+{
+ void __iomem *uart_base;
+
+ uart_base = ioremap(UART_UART, 0x20);
+ setup_8250_early_printk_port((unsigned long)uart_base, 2, 50000);
+}
+
+static void __init ocelot_late_init(void)
+{
+ ocelot_earlyprintk_init();
+}
+
+static __init const void *ocelot_fixup_fdt(const void *fdt,
+ const void *match_data)
+{
+ /* This has to be done so late because ioremap needs to work */
+ late_time_init = ocelot_late_init;
+
+ return fdt;
+}
+
+extern char __dtb_ocelot_pcb123_begin[];
+
+MIPS_MACHINE(ocelot) = {
+ .fdt = __dtb_ocelot_pcb123_begin,
+ .fixup_fdt = ocelot_fixup_fdt,
+ .detect = ocelot_detect,
+};