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authorChao-ying Fu <[email protected]>2025-05-22 14:21:34 -0700
committerAnup Patel <[email protected]>2025-06-14 21:44:11 +0530
commit66ab965e54017292d530033ffaae127389c45458 (patch)
tree0eabf72e31830028a76c96593da75796ed362af6 /platform
parent3f8159aa068e6b2447abcf2df00b913b7f852456 (diff)
platform: generic: mips: add P8700
Extend generic platform to support MIPS P8700. Signed-off-by: Chao-ying Fu <[email protected]> Reviewed-by: Anup Patel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Anup Patel <[email protected]>
Diffstat (limited to 'platform')
-rw-r--r--platform/generic/Kconfig4
-rw-r--r--platform/generic/configs/defconfig1
-rw-r--r--platform/generic/include/mips/board.h33
-rw-r--r--platform/generic/include/mips/mips-cm.h88
-rw-r--r--platform/generic/include/mips/p8700.h113
-rw-r--r--platform/generic/mips/objects.mk8
-rw-r--r--platform/generic/mips/p8700.c270
7 files changed, 517 insertions, 0 deletions
diff --git a/platform/generic/Kconfig b/platform/generic/Kconfig
index 688da3f4..a24d6ab2 100644
--- a/platform/generic/Kconfig
+++ b/platform/generic/Kconfig
@@ -68,6 +68,10 @@ config PLATFORM_THEAD
select THEAD_C9XX_PMU
default n
+config PLATFORM_MIPS_P8700
+ bool "MIPS P8700 support"
+ default n
+
source "$(OPENSBI_SRC_DIR)/platform/generic/andes/Kconfig"
source "$(OPENSBI_SRC_DIR)/platform/generic/thead/Kconfig"
diff --git a/platform/generic/configs/defconfig b/platform/generic/configs/defconfig
index bb260626..c7a6531e 100644
--- a/platform/generic/configs/defconfig
+++ b/platform/generic/configs/defconfig
@@ -6,6 +6,7 @@ CONFIG_PLATFORM_SIFIVE_FU740=y
CONFIG_PLATFORM_SOPHGO_SG2042=y
CONFIG_PLATFORM_STARFIVE_JH7110=y
CONFIG_PLATFORM_THEAD=y
+CONFIG_PLATFORM_MIPS_P8700=y
CONFIG_FDT_CPPC=y
CONFIG_FDT_CPPC_RPMI=y
CONFIG_FDT_GPIO=y
diff --git a/platform/generic/include/mips/board.h b/platform/generic/include/mips/board.h
new file mode 100644
index 00000000..6fe7b8b6
--- /dev/null
+++ b/platform/generic/include/mips/board.h
@@ -0,0 +1,33 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 MIPS
+ *
+ */
+
+#ifndef __BOARD_H__
+#define __BOARD_H__
+
+/* Please review all defines to change for your board. */
+
+/* Use in stw.S, p8700.c, p8700.h, mips-cm.h */
+#define CM_BASE 0x16100000
+
+/* Use in mips-cm.h, p8700.c */
+#define CLUSTERS_IN_PLATFORM 1
+#if CLUSTERS_IN_PLATFORM > 1
+/* Define global CM bases for cluster 0, 1, 2, and more. */
+#define GLOBAL_CM_BASE0 0
+#define GLOBAL_CM_BASE1 0
+#define GLOBAL_CM_BASE2 0
+#endif
+
+/* Use in stw.S */
+#define TIMER_ADDR (CM_BASE + 0x8050)
+
+/* Use in cps-vec.S */
+#define DRAM_ADDRESS 0x80000000
+#define DRAM_SIZE 0x80000000
+#define DRAM_PMP_ADDR ((DRAM_ADDRESS >> 2) | ((DRAM_SIZE - 1) >> 3))
+
+#endif
diff --git a/platform/generic/include/mips/mips-cm.h b/platform/generic/include/mips/mips-cm.h
new file mode 100644
index 00000000..419e8407
--- /dev/null
+++ b/platform/generic/include/mips/mips-cm.h
@@ -0,0 +1,88 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 MIPS
+ *
+ */
+
+#ifndef __MIPS_CM_H__
+#define __MIPS_CM_H__
+
+#include <mips/p8700.h>
+#include <sbi/sbi_console.h>
+
+/* Define 1 to print out CM read and write info */
+#define DEBUG_CM 0
+
+#if CLUSTERS_IN_PLATFORM > 1
+static long GLOBAL_CM_BASE[CLUSTERS_IN_PLATFORM] = {GLOBAL_CM_BASE0, GLOBAL_CM_BASE1, GLOBAL_CM_BASE2};
+#else
+static long GLOBAL_CM_BASE[CLUSTERS_IN_PLATFORM] = {CM_BASE};
+#endif
+
+#define CPS_ACCESSOR_R(unit, sz, base, off, name) \
+static inline u##sz read_##unit##_##name(u32 hartid, bool local_p) \
+{ \
+ u##sz value; \
+ long cmd_reg; \
+ int cl, co; \
+ cl = cpu_cluster(hartid); \
+ co = cpu_core(hartid); \
+ cmd_reg = (local_p ? (base) : ((base) - CM_BASE + GLOBAL_CM_BASE[cl])) \
+ + (co << CM_BASE_CORE_SHIFT) \
+ + off; \
+ if (DEBUG_CM) \
+ sbi_printf("CM READ%d cmd_reg=%lx\n", sz, cmd_reg); \
+ if (sz == 32) \
+ asm volatile("lw %0,0(%1)":"=r"(value):"r"(cmd_reg)); \
+ else if (sz == 64) \
+ asm volatile("ld %0,0(%1)":"=r"(value):"r"(cmd_reg)); \
+ asm volatile("fence"); \
+ return value; \
+}
+
+#define CPS_ACCESSOR_W(unit, sz, base, off, name) \
+static inline void write_##unit##_##name(u32 hartid, u##sz value, bool local_p) \
+{ \
+ long cmd_reg; \
+ int cl, co; \
+ cl = cpu_cluster(hartid); \
+ co = cpu_core(hartid); \
+ cmd_reg = (local_p ? (base) : ((base) - CM_BASE + GLOBAL_CM_BASE[cl])) \
+ + (co << CM_BASE_CORE_SHIFT) \
+ + off; \
+ if (DEBUG_CM) \
+ sbi_printf("CM WRITE%d cmd_reg=%lx value=%lx\n", sz, \
+ cmd_reg, (unsigned long)value); \
+ if (sz == 32) \
+ asm volatile("sw %0,0(%1)"::"r"(value),"r"(cmd_reg)); \
+ else if (sz == 64) \
+ asm volatile("sd %0,0(%1)"::"r"(value),"r"(cmd_reg)); \
+ asm volatile("fence"); \
+}
+
+#define CPS_ACCESSOR_RW(unit, sz, base, off, name) \
+ CPS_ACCESSOR_R(unit, sz, base, off, name) \
+ CPS_ACCESSOR_W(unit, sz, base, off, name)
+
+#define CPC_CX_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(cpc, sz, CPC_BASE, CPC_OFF_LOCAL + (off), co_##name)
+
+#define GCR_CX_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(gcr, sz, CM_BASE, GCR_OFF_LOCAL + (off), co_##name)
+
+GCR_CX_ACCESSOR_RW(64, cpu_hart(hartid) << CM_BASE_HART_SHIFT, reset_base)
+GCR_CX_ACCESSOR_RW(32, GCR_CORE_COH_EN, coherence)
+
+CPC_CX_ACCESSOR_RW(32, CPC_Cx_VP_RUN, vp_run)
+CPC_CX_ACCESSOR_RW(32, CPC_Cx_VP_STOP, vp_stop)
+CPC_CX_ACCESSOR_RW(32, CPC_Cx_CMD, cmd)
+CPC_CX_ACCESSOR_RW(32, CPC_Cx_STAT_CONF, stat_conf)
+
+#define CPC_ACCESSOR_RW(sz, off, name) \
+ CPS_ACCESSOR_RW(cpc, sz, CPC_BASE, off, name)
+
+CPC_ACCESSOR_RW(32, CPC_PWRUP_CTL, pwrup_ctl)
+CPC_ACCESSOR_RW(32, CPC_CM_STAT_CONF, cm_stat_conf)
+
+#endif
diff --git a/platform/generic/include/mips/p8700.h b/platform/generic/include/mips/p8700.h
new file mode 100644
index 00000000..b02aaed4
--- /dev/null
+++ b/platform/generic/include/mips/p8700.h
@@ -0,0 +1,113 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 MIPS
+ *
+ */
+
+#ifndef __P8700_H__
+#define __P8700_H__
+
+#include <mips/board.h>
+
+/* PMA */
+#define CSR_MIPSPMACFG0 0x7e0
+#define CSR_MIPSPMACFG1 0x7e1
+#define CSR_MIPSPMACFG2 0x7e2
+#define CSR_MIPSPMACFG3 0x7e3
+#define CSR_MIPSPMACFG4 0x7e4
+#define CSR_MIPSPMACFG5 0x7e5
+#define CSR_MIPSPMACFG6 0x7e6
+#define CSR_MIPSPMACFG7 0x7e7
+#define CSR_MIPSPMACFG8 0x7e8
+#define CSR_MIPSPMACFG9 0x7e9
+#define CSR_MIPSPMACFG10 0x7ea
+#define CSR_MIPSPMACFG11 0x7eb
+#define CSR_MIPSPMACFG12 0x7ec
+#define CSR_MIPSPMACFG13 0x7ed
+#define CSR_MIPSPMACFG14 0x7ee
+#define CSR_MIPSPMACFG15 0x7ef
+
+/* MIPS CCA */
+#define CCA_CACHE_ENABLE 0
+#define CCA_CACHE_DISABLE 2
+#define PMA_SPECULATION (1 << 3)
+
+/* MIPS CSR */
+#define CSR_MIPSTVEC 0x7c0
+#define CSR_MIPSCONFIG0 0x7d0
+#define CSR_MIPSCONFIG1 0x7d1
+#define CSR_MIPSCONFIG2 0x7d2
+#define CSR_MIPSCONFIG3 0x7d3
+#define CSR_MIPSCONFIG4 0x7d4
+#define CSR_MIPSCONFIG5 0x7d5
+#define CSR_MIPSCONFIG6 0x7d6
+#define CSR_MIPSCONFIG7 0x7d7
+#define CSR_MIPSCONFIG8 0x7d8
+#define CSR_MIPSCONFIG9 0x7d9
+#define CSR_MIPSCONFIG10 0x7da
+#define CSR_MIPSCONFIG11 0x7db
+
+#define MIPSCONFIG5_MTW 4
+
+#define GEN_MASK(h, l) (((1ul << ((h) + 1 - (l))) - 1) << (l))
+#define EXT(val, mask) (((val) & (mask)) >> (__builtin_ffs(mask) - 1))
+
+/*
+ * We allocate the number of bits to encode clusters, cores, and harts
+ * from the original mhartid to a new dense index.
+ */
+#define NUM_OF_BITS_FOR_CLUSTERS 4
+#define NUM_OF_BITS_FOR_CORES 12
+#define NUM_OF_BITS_FOR_HARTS 4
+
+/* To get the field from new/hashed mhartid */
+#define NEW_CLUSTER_SHIFT (NUM_OF_BITS_FOR_CORES + NUM_OF_BITS_FOR_HARTS)
+#define NEW_CLUSTER_MASK ((1 << NUM_OF_BITS_FOR_CLUSTERS) - 1)
+#define NEW_CORE_SHIFT NUM_OF_BITS_FOR_HARTS
+#define NEW_CORE_MASK ((1 << NUM_OF_BITS_FOR_CORES) - 1)
+#define NEW_HART_MASK ((1 << NUM_OF_BITS_FOR_HARTS) - 1)
+#define cpu_cluster(i) (((i) >> NEW_CLUSTER_SHIFT) & NEW_CLUSTER_MASK)
+#define cpu_core(i) (((i) >> NEW_CORE_SHIFT) & NEW_CORE_MASK)
+#define cpu_hart(i) ((i) & NEW_HART_MASK)
+
+#define CPC_BASE (CM_BASE + 0x8000)
+
+#define SIZE_FOR_CPC_MTIME 0x10000 /* The size must be 2^order */
+#define AIA_BASE (CM_BASE + 0x40000)
+#define SIZE_FOR_AIA_M_MODE 0x20000 /* The size must be 2^order */
+#define P8700_ALIGN 0x10000
+
+#define CM_BASE_HART_SHIFT 3
+#define CM_BASE_CORE_SHIFT 8
+#define CM_BASE_CLUSTER_SHIFT 19
+
+/* GCR Block offsets */
+#define GCR_OFF_LOCAL 0x2000
+
+#define GCR_BASE_OFFSET 0x0008
+#define GCR_CORE_COH_EN 0x00f8
+#define GCR_CORE_COH_EN_EN (0x1 << 0)
+
+#define L2_PFT_CONTROL_OFFSET 0x0300
+#define L2_PFT_CONTROL_B_OFFSET 0x0308
+
+/* CPC Block offsets */
+#define CPC_PWRUP_CTL 0x0030
+#define CPC_CM_STAT_CONF 0x1008
+
+#define CPC_OFF_LOCAL 0x2000
+
+#define CPC_Cx_VP_STOP 0x0020
+#define CPC_Cx_VP_RUN 0x0028
+#define CPC_Cx_CMD 0x0000
+
+#define CPC_Cx_CMD_PWRUP 0x3
+#define CPC_Cx_CMD_RESET 0x4
+
+#define CPC_Cx_STAT_CONF 0x0008
+#define CPC_Cx_STAT_CONF_SEQ_STATE GEN_MASK(22, 19)
+#define CPC_Cx_STAT_CONF_SEQ_STATE_U5 6
+#define CPC_Cx_STAT_CONF_SEQ_STATE_U6 7
+
+#endif
diff --git a/platform/generic/mips/objects.mk b/platform/generic/mips/objects.mk
new file mode 100644
index 00000000..bbbc15a0
--- /dev/null
+++ b/platform/generic/mips/objects.mk
@@ -0,0 +1,8 @@
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+
+ifeq ($(PLATFORM_RISCV_XLEN), 64)
+carray-platform_override_modules-$(CONFIG_PLATFORM_MIPS_P8700) += mips_p8700
+platform-objs-$(CONFIG_PLATFORM_MIPS_P8700) += mips/p8700.o
+endif
diff --git a/platform/generic/mips/p8700.c b/platform/generic/mips/p8700.c
new file mode 100644
index 00000000..6b687179
--- /dev/null
+++ b/platform/generic/mips/p8700.c
@@ -0,0 +1,270 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2025 MIPS
+ *
+ */
+
+#include <platform_override.h>
+#include <sbi/riscv_barrier.h>
+#include <sbi/riscv_io.h>
+#include <sbi/sbi_domain.h>
+#include <sbi/sbi_error.h>
+#include <sbi/sbi_hsm.h>
+#include <sbi/sbi_timer.h>
+#include <sbi_utils/fdt/fdt_helper.h>
+#include <mips/p8700.h>
+#include <mips/mips-cm.h>
+
+#if CLUSTERS_IN_PLATFORM > 1
+static void power_up_other_cluster(u32 hartid)
+{
+ unsigned int stat;
+ unsigned int timeout;
+ bool local_p = (cpu_cluster(current_hartid()) == cpu_cluster(hartid));
+
+ /* Power up cluster cl core 0 hart 0 */
+ write_cpc_pwrup_ctl(hartid, 1, local_p);
+
+ /* Wait for the CM to start up */
+ timeout = 100;
+ while (true) {
+ stat = read_cpc_cm_stat_conf(hartid, local_p);
+ stat = EXT(stat, CPC_Cx_STAT_CONF_SEQ_STATE);
+ if (stat == CPC_Cx_STAT_CONF_SEQ_STATE_U5)
+ break;
+
+ /* Delay a little while before we start warning */
+ if (timeout) {
+ sbi_dprintf("Delay a little while before we start warning\n");
+ timeout--;
+ }
+ else {
+ sbi_printf("Waiting for cluster %u CM to power up... STAT_CONF=0x%x\n",
+ cpu_cluster(hartid), stat);
+ break;
+ }
+ }
+}
+#endif
+
+static int mips_hart_start(u32 hartid, ulong saddr)
+{
+ unsigned int stat;
+ unsigned int timeout;
+ bool local_p = (cpu_cluster(current_hartid()) == cpu_cluster(hartid));
+
+ /* Hart 0 is the boot hart, and we don't use the CPC cmd to start. */
+ if (hartid == 0)
+ return SBI_ENOTSUPP;
+
+ if (cpu_hart(hartid) == 0) {
+ /* Ensure its coherency is disabled */
+ write_gcr_co_coherence(hartid, 0, local_p);
+
+ /* Start cluster cl core co hart 0 */
+ write_cpc_co_vp_run(hartid, 1 << cpu_hart(hartid), local_p);
+
+ /* Reset cluster cl core co hart 0 */
+ write_cpc_co_cmd(hartid, CPC_Cx_CMD_RESET, local_p);
+
+ timeout = 100;
+ while (true) {
+ stat = read_cpc_co_stat_conf(hartid, local_p);
+ stat = EXT(stat, CPC_Cx_STAT_CONF_SEQ_STATE);
+ if (stat == CPC_Cx_STAT_CONF_SEQ_STATE_U6)
+ break;
+
+ /* Delay a little while before we start warning */
+ if (timeout) {
+ sbi_timer_mdelay(10);
+ timeout--;
+ }
+ else {
+ sbi_printf("Waiting for cluster %u core %u hart %u to start... STAT_CONF=0x%x\n",
+ cpu_cluster(hartid),
+ cpu_core(hartid), cpu_hart(hartid),
+ stat);
+ break;
+ }
+ }
+ }
+ else {
+ write_cpc_co_vp_run(hartid, 1 << cpu_hart(hartid), local_p);
+ }
+
+ return 0;
+}
+
+static int mips_hart_stop()
+{
+ u32 hartid = current_hartid();
+ bool local_p = (cpu_cluster(current_hartid()) == cpu_cluster(hartid));
+
+ /* Hart 0 is the boot hart, and we don't use the CPC cmd to stop. */
+ if (hartid == 0)
+ return SBI_ENOTSUPP;
+
+ write_cpc_co_vp_stop(hartid, 1 << cpu_hart(hartid), local_p);
+
+ return 0;
+}
+
+static const struct sbi_hsm_device mips_hsm = {
+ .name = "mips_hsm",
+ .hart_start = mips_hart_start,
+ .hart_stop = mips_hart_stop,
+};
+
+static int mips_p8700_final_init(bool cold_boot)
+{
+ if (cold_boot)
+ sbi_hsm_set_device(&mips_hsm);
+
+ return generic_final_init(cold_boot);
+}
+
+static int mips_p8700_early_init(bool cold_boot)
+{
+ int rc;
+
+ rc = generic_early_init(cold_boot);
+ if (rc)
+ return rc;
+
+ if (cold_boot) {
+#if CLUSTERS_IN_PLATFORM > 1
+ int i;
+ /* Power up other clusters in the platform. */
+ for (i = 1; i < CLUSTERS_IN_PLATFORM; i++) {
+ power_up_other_cluster(i << NEW_CLUSTER_SHIFT);
+ }
+#endif
+
+ /* For the CPC mtime region, the minimum size is 0x10000. */
+ rc = sbi_domain_root_add_memrange(CM_BASE, SIZE_FOR_CPC_MTIME,
+ P8700_ALIGN,
+ (SBI_DOMAIN_MEMREGION_MMIO |
+ SBI_DOMAIN_MEMREGION_M_READABLE |
+ SBI_DOMAIN_MEMREGION_M_WRITABLE));
+ if (rc)
+ return rc;
+
+ /* For the APLIC and ACLINT m-mode region */
+ rc = sbi_domain_root_add_memrange(AIA_BASE, SIZE_FOR_AIA_M_MODE,
+ P8700_ALIGN,
+ (SBI_DOMAIN_MEMREGION_MMIO |
+ SBI_DOMAIN_MEMREGION_M_READABLE |
+ SBI_DOMAIN_MEMREGION_M_WRITABLE));
+ if (rc)
+ return rc;
+
+#if CLUSTERS_IN_PLATFORM > 1
+ for (i = 0; i < CLUSTERS_IN_PLATFORM; i++) {
+ /* For the CPC mtime region, the minimum size is 0x10000. */
+ rc = sbi_domain_root_add_memrange(GLOBAL_CM_BASE[i], SIZE_FOR_CPC_MTIME,
+ P8700_ALIGN,
+ (SBI_DOMAIN_MEMREGION_MMIO |
+ SBI_DOMAIN_MEMREGION_M_READABLE |
+ SBI_DOMAIN_MEMREGION_M_WRITABLE));
+ if (rc)
+ return rc;
+
+ /* For the APLIC and ACLINT m-mode region */
+ rc = sbi_domain_root_add_memrange(AIA_BASE - CM_BASE + GLOBAL_CM_BASE[i], SIZE_FOR_AIA_M_MODE,
+ P8700_ALIGN,
+ (SBI_DOMAIN_MEMREGION_MMIO |
+ SBI_DOMAIN_MEMREGION_M_READABLE |
+ SBI_DOMAIN_MEMREGION_M_WRITABLE));
+ if (rc)
+ return rc;
+ }
+#endif
+ }
+
+ return 0;
+}
+
+static int mips_p8700_nascent_init(void)
+{
+ u64 hartid = current_hartid();
+ u64 cm_base = CM_BASE;
+ int i;
+
+ /* Coherence enable for every core */
+ if (cpu_hart(hartid) == 0) {
+ cm_base += (cpu_core(hartid) << CM_BASE_CORE_SHIFT);
+ __raw_writeq(GCR_CORE_COH_EN_EN,
+ (void *)(cm_base + GCR_OFF_LOCAL +
+ GCR_CORE_COH_EN));
+ mb();
+ }
+
+ /* Set up pmp for DRAM */
+ csr_write(CSR_PMPADDR14, DRAM_PMP_ADDR);
+ /* All from 0x0 */
+ csr_write(CSR_PMPADDR15, 0x1fffffffffffffff);
+ csr_write(CSR_PMPCFG2, ((PMP_A_NAPOT|PMP_R|PMP_W|PMP_X)<<56)|
+ ((PMP_A_NAPOT|PMP_R|PMP_W|PMP_X)<<48));
+ /* Set cacheable for pmp6, uncacheable for pmp7 */
+ csr_write(CSR_MIPSPMACFG2, ((u64)CCA_CACHE_DISABLE << 56)|
+ ((u64)CCA_CACHE_ENABLE << 48));
+ /* Reset pmpcfg0 */
+ csr_write(CSR_PMPCFG0, 0);
+ /* Reset pmacfg0 */
+ csr_write(CSR_MIPSPMACFG0, 0);
+ mb();
+
+ /* Per cluster set up */
+ if (cpu_core(hartid) == 0 && cpu_hart(hartid) == 0) {
+ /* Enable L2 prefetch */
+ __raw_writel(0xfffff110,
+ (void *)(cm_base + L2_PFT_CONTROL_OFFSET));
+ __raw_writel(0x15ff,
+ (void *)(cm_base + L2_PFT_CONTROL_B_OFFSET));
+ }
+
+ /* Per core set up */
+ if (cpu_hart(hartid) == 0) {
+ /* Enable load pair, store pair, and HTW */
+ csr_clear(CSR_MIPSCONFIG7, (1<<12)|(1<<13)|(1<<7));
+
+ /* Disable noRFO, misaligned load/store */
+ csr_set(CSR_MIPSCONFIG7, (1<<25)|(1<<9));
+
+ /* Enable L1-D$ Prefetch */
+ csr_write(CSR_MIPSCONFIG11, 0xff);
+
+ for (i = 0; i < 8; i++) {
+ csr_set(CSR_MIPSCONFIG8, 4 + 0x100 * i);
+ csr_set(CSR_MIPSCONFIG9, 8);
+ mb();
+ RISCV_FENCE_I;
+ }
+ }
+
+ /* Per hart set up */
+ /* Enable AMO and RDTIME illegal instruction exceptions. */
+ csr_set(CSR_MIPSCONFIG6, (1<<2)|(1<<1));
+
+ return 0;
+}
+
+static int mips_p8700_platform_init(const void *fdt, int nodeoff, const struct fdt_match *match)
+{
+ generic_platform_ops.early_init = mips_p8700_early_init;
+ generic_platform_ops.final_init = mips_p8700_final_init;
+ generic_platform_ops.nascent_init = mips_p8700_nascent_init;
+
+ return 0;
+}
+
+static const struct fdt_match mips_p8700_match[] = {
+ { .compatible = "mips,p8700" },
+ { },
+};
+
+const struct fdt_driver mips_p8700 = {
+ .match_table = mips_p8700_match,
+ .init = mips_p8700_platform_init,
+};