Merge branch 'master' of git://git.denx.de/u-boot-mips
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index ef78929..bc4283d 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -36,6 +36,7 @@
select SUPPORTS_BIG_ENDIAN
select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2
+ select SYS_MIPS_CACHE_INIT_RAM_LOAD
config TARGET_DBAU1X00
bool "Support dbau1x00"
@@ -43,12 +44,14 @@
select SUPPORTS_LITTLE_ENDIAN
select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2
+ select SYS_MIPS_CACHE_INIT_RAM_LOAD
config TARGET_PB1X00
bool "Support pb1x00"
select SUPPORTS_LITTLE_ENDIAN
select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2
+ select SYS_MIPS_CACHE_INIT_RAM_LOAD
endchoice
@@ -185,6 +188,9 @@
config SWAP_IO_SPACE
bool
+config SYS_MIPS_CACHE_INIT_RAM_LOAD
+ bool
+
endif
endmenu
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 0a9e7e6..43f0f5c 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -2,9 +2,9 @@
# SPDX-License-Identifier: GPL-2.0+
#
-head-$(CONFIG_CPU_MIPS32) := arch/mips/cpu/mips32/start.o
-head-$(CONFIG_CPU_MIPS64) := arch/mips/cpu/mips64/start.o
+head-y := arch/mips/cpu/start.o
-libs-$(CONFIG_CPU_MIPS32) += arch/mips/cpu/mips32/
-libs-$(CONFIG_CPU_MIPS64) += arch/mips/cpu/mips64/
+libs-y += arch/mips/cpu/
libs-y += arch/mips/lib/
+
+libs-$(CONFIG_SOC_AU1X00) += arch/mips/mach-au1x00/
diff --git a/arch/mips/cpu/Makefile b/arch/mips/cpu/Makefile
new file mode 100644
index 0000000..fc6b455
--- /dev/null
+++ b/arch/mips/cpu/Makefile
@@ -0,0 +1,9 @@
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+extra-y = start.o
+
+obj-y += time.o
+obj-y += interrupts.o
+obj-y += cpu.o
diff --git a/arch/mips/cpu/cpu.c b/arch/mips/cpu/cpu.c
new file mode 100644
index 0000000..8d3b2f5
--- /dev/null
+++ b/arch/mips/cpu/cpu.c
@@ -0,0 +1,38 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <linux/compiler.h>
+#include <asm/mipsregs.h>
+#include <asm/reboot.h>
+
+void __weak _machine_restart(void)
+{
+ fprintf(stderr, "*** reset failed ***\n");
+
+ while (1)
+ /* NOP */;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ _machine_restart();
+
+ return 0;
+}
+
+void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1)
+{
+ write_c0_entrylo0(low0);
+ write_c0_pagemask(pagemask);
+ write_c0_entrylo1(low1);
+ write_c0_entryhi(hi);
+ write_c0_index(index);
+ tlb_write_indexed();
+}
diff --git a/arch/mips/cpu/mips32/interrupts.c b/arch/mips/cpu/interrupts.c
similarity index 100%
rename from arch/mips/cpu/mips32/interrupts.c
rename to arch/mips/cpu/interrupts.c
diff --git a/arch/mips/cpu/mips32/Makefile b/arch/mips/cpu/mips32/Makefile
deleted file mode 100644
index fa82dd3..0000000
--- a/arch/mips/cpu/mips32/Makefile
+++ /dev/null
@@ -1,12 +0,0 @@
-#
-# (C) Copyright 2003-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-extra-y = start.o
-obj-y = cache.o
-obj-y += cpu.o interrupts.o time.o
-
-obj-$(CONFIG_SOC_AU1X00) += au1x00/
diff --git a/arch/mips/cpu/mips32/cache.S b/arch/mips/cpu/mips32/cache.S
deleted file mode 100644
index 22bd844..0000000
--- a/arch/mips/cpu/mips32/cache.S
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Cache-handling routined for MIPS CPUs
- *
- * Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm-offsets.h>
-#include <config.h>
-#include <asm/asm.h>
-#include <asm/regdef.h>
-#include <asm/mipsregs.h>
-#include <asm/addrspace.h>
-#include <asm/cacheops.h>
-
-#ifndef CONFIG_SYS_MIPS_CACHE_MODE
-#define CONFIG_SYS_MIPS_CACHE_MODE CONF_CM_CACHABLE_NONCOHERENT
-#endif
-
-#define RA t9
-
-#define INDEX_BASE CKSEG0
-
- .macro cache_op op addr
- .set push
- .set noreorder
- .set mips3
- cache \op, 0(\addr)
- .set pop
- .endm
-
- .macro f_fill64 dst, offset, val
- LONG_S \val, (\offset + 0 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 1 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 2 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 3 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 4 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 5 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 6 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 7 * LONGSIZE)(\dst)
-#if LONGSIZE == 4
- LONG_S \val, (\offset + 8 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 9 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 10 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 11 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 12 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 13 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 14 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 15 * LONGSIZE)(\dst)
-#endif
- .endm
-
-/*
- * mips_init_icache(uint PRId, ulong icache_size, unchar icache_linesz)
- */
-LEAF(mips_init_icache)
- blez a1, 9f
- mtc0 zero, CP0_TAGLO
- /* clear tag to invalidate */
- PTR_LI t0, INDEX_BASE
- PTR_ADDU t1, t0, a1
-1: cache_op INDEX_STORE_TAG_I t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
- /* fill once, so data field parity is correct */
- PTR_LI t0, INDEX_BASE
-2: cache_op FILL t0
- PTR_ADDU t0, a2
- bne t0, t1, 2b
- /* invalidate again - prudent but not strictly neccessary */
- PTR_LI t0, INDEX_BASE
-1: cache_op INDEX_STORE_TAG_I t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
-9: jr ra
- END(mips_init_icache)
-
-/*
- * mips_init_dcache(uint PRId, ulong dcache_size, unchar dcache_linesz)
- */
-LEAF(mips_init_dcache)
- blez a1, 9f
- mtc0 zero, CP0_TAGLO
- /* clear all tags */
- PTR_LI t0, INDEX_BASE
- PTR_ADDU t1, t0, a1
-1: cache_op INDEX_STORE_TAG_D t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
- /* load from each line (in cached space) */
- PTR_LI t0, INDEX_BASE
-2: LONG_L zero, 0(t0)
- PTR_ADDU t0, a2
- bne t0, t1, 2b
- /* clear all tags */
- PTR_LI t0, INDEX_BASE
-1: cache_op INDEX_STORE_TAG_D t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
-9: jr ra
- END(mips_init_dcache)
-
-/*
- * mips_cache_reset - low level initialisation of the primary caches
- *
- * This routine initialises the primary caches to ensure that they have good
- * parity. It must be called by the ROM before any cached locations are used
- * to prevent the possibility of data with bad parity being written to memory.
- *
- * To initialise the instruction cache it is essential that a source of data
- * with good parity is available. This routine will initialise an area of
- * memory starting at location zero to be used as a source of parity.
- *
- * RETURNS: N/A
- *
- */
-NESTED(mips_cache_reset, 0, ra)
- move RA, ra
-
-#if !defined(CONFIG_SYS_ICACHE_SIZE) || !defined(CONFIG_SYS_DCACHE_SIZE) || \
- !defined(CONFIG_SYS_CACHELINE_SIZE)
- /* read Config1 for use below */
- mfc0 t5, CP0_CONFIG, 1
-#endif
-
-#ifdef CONFIG_SYS_CACHELINE_SIZE
- li t7, CONFIG_SYS_CACHELINE_SIZE
- li t8, CONFIG_SYS_CACHELINE_SIZE
-#else
- /* Detect I-cache line size. */
- srl t8, t5, MIPS_CONF1_IL_SHIFT
- andi t8, t8, (MIPS_CONF1_IL >> MIPS_CONF1_IL_SHIFT)
- beqz t8, 1f
- li t6, 2
- sllv t8, t6, t8
-
-1: /* Detect D-cache line size. */
- srl t7, t5, MIPS_CONF1_DL_SHIFT
- andi t7, t7, (MIPS_CONF1_DL >> MIPS_CONF1_DL_SHIFT)
- beqz t7, 1f
- li t6, 2
- sllv t7, t6, t7
-1:
-#endif
-
-#ifdef CONFIG_SYS_ICACHE_SIZE
- li t2, CONFIG_SYS_ICACHE_SIZE
-#else
- /* Detect I-cache size. */
- srl t6, t5, MIPS_CONF1_IS_SHIFT
- andi t6, t6, (MIPS_CONF1_IS >> MIPS_CONF1_IS_SHIFT)
- li t4, 32
- xori t2, t6, 0x7
- beqz t2, 1f
- addi t6, t6, 1
- sllv t4, t4, t6
-1: /* At this point t4 == I-cache sets. */
- mul t2, t4, t8
- srl t6, t5, MIPS_CONF1_IA_SHIFT
- andi t6, t6, (MIPS_CONF1_IA >> MIPS_CONF1_IA_SHIFT)
- addi t6, t6, 1
- /* At this point t6 == I-cache ways. */
- mul t2, t2, t6
-#endif
-
-#ifdef CONFIG_SYS_DCACHE_SIZE
- li t3, CONFIG_SYS_DCACHE_SIZE
-#else
- /* Detect D-cache size. */
- srl t6, t5, MIPS_CONF1_DS_SHIFT
- andi t6, t6, (MIPS_CONF1_DS >> MIPS_CONF1_DS_SHIFT)
- li t4, 32
- xori t3, t6, 0x7
- beqz t3, 1f
- addi t6, t6, 1
- sllv t4, t4, t6
-1: /* At this point t4 == I-cache sets. */
- mul t3, t4, t7
- srl t6, t5, MIPS_CONF1_DA_SHIFT
- andi t6, t6, (MIPS_CONF1_DA >> MIPS_CONF1_DA_SHIFT)
- addi t6, t6, 1
- /* At this point t6 == I-cache ways. */
- mul t3, t3, t6
-#endif
-
- /* Determine the largest L1 cache size */
-#if defined(CONFIG_SYS_ICACHE_SIZE) && defined(CONFIG_SYS_DCACHE_SIZE)
-#if CONFIG_SYS_ICACHE_SIZE > CONFIG_SYS_DCACHE_SIZE
- li v0, CONFIG_SYS_ICACHE_SIZE
-#else
- li v0, CONFIG_SYS_DCACHE_SIZE
-#endif
-#else
- move v0, t2
- sltu t1, t2, t3
- movn v0, t3, t1
-#endif
- /*
- * Now clear that much memory starting from zero.
- */
- PTR_LI a0, CKSEG1
- PTR_ADDU a1, a0, v0
-2: PTR_ADDIU a0, 64
- f_fill64 a0, -64, zero
- bne a0, a1, 2b
-
- /*
- * The caches are probably in an indeterminate state,
- * so we force good parity into them by doing an
- * invalidate, load/fill, invalidate for each line.
- */
-
- /*
- * Assume bottom of RAM will generate good parity for the cache.
- */
-
- /*
- * Initialize the I-cache first,
- */
- move a1, t2
- move a2, t8
- PTR_LA v1, mips_init_icache
- jalr v1
-
- /*
- * then initialize D-cache.
- */
- move a1, t3
- move a2, t7
- PTR_LA v1, mips_init_dcache
- jalr v1
-
- jr RA
- END(mips_cache_reset)
-
-/*
- * dcache_status - get cache status
- *
- * RETURNS: 0 - cache disabled; 1 - cache enabled
- *
- */
-LEAF(dcache_status)
- mfc0 t0, CP0_CONFIG
- li t1, CONF_CM_UNCACHED
- andi t0, t0, CONF_CM_CMASK
- move v0, zero
- beq t0, t1, 2f
- li v0, 1
-2: jr ra
- END(dcache_status)
-
-/*
- * dcache_disable - disable cache
- *
- * RETURNS: N/A
- *
- */
-LEAF(dcache_disable)
- mfc0 t0, CP0_CONFIG
- li t1, -8
- and t0, t0, t1
- ori t0, t0, CONF_CM_UNCACHED
- mtc0 t0, CP0_CONFIG
- jr ra
- END(dcache_disable)
-
-/*
- * dcache_enable - enable cache
- *
- * RETURNS: N/A
- *
- */
-LEAF(dcache_enable)
- mfc0 t0, CP0_CONFIG
- ori t0, CONF_CM_CMASK
- xori t0, CONF_CM_CMASK
- ori t0, CONFIG_SYS_MIPS_CACHE_MODE
- mtc0 t0, CP0_CONFIG
- jr ra
- END(dcache_enable)
diff --git a/arch/mips/cpu/mips32/cpu.c b/arch/mips/cpu/mips32/cpu.c
deleted file mode 100644
index 278865b..0000000
--- a/arch/mips/cpu/mips32/cpu.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <netdev.h>
-#include <asm/mipsregs.h>
-#include <asm/cacheops.h>
-#include <asm/reboot.h>
-
-#define cache_op(op,addr) \
- __asm__ __volatile__( \
- " .set push \n" \
- " .set noreorder \n" \
- " .set mips3\n\t \n" \
- " cache %0, %1 \n" \
- " .set pop \n" \
- : \
- : "i" (op), "R" (*(unsigned char *)(addr)))
-
-void __attribute__((weak)) _machine_restart(void)
-{
-}
-
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- _machine_restart();
-
- fprintf(stderr, "*** reset failed ***\n");
- return 0;
-}
-
-#ifdef CONFIG_SYS_CACHELINE_SIZE
-
-static inline unsigned long icache_line_size(void)
-{
- return CONFIG_SYS_CACHELINE_SIZE;
-}
-
-static inline unsigned long dcache_line_size(void)
-{
- return CONFIG_SYS_CACHELINE_SIZE;
-}
-
-#else /* !CONFIG_SYS_CACHELINE_SIZE */
-
-static inline unsigned long icache_line_size(void)
-{
- unsigned long conf1, il;
- conf1 = read_c0_config1();
- il = (conf1 & MIPS_CONF1_IL) >> MIPS_CONF1_IL_SHIFT;
- if (!il)
- return 0;
- return 2 << il;
-}
-
-static inline unsigned long dcache_line_size(void)
-{
- unsigned long conf1, dl;
- conf1 = read_c0_config1();
- dl = (conf1 & MIPS_CONF1_DL) >> MIPS_CONF1_DL_SHIFT;
- if (!dl)
- return 0;
- return 2 << dl;
-}
-
-#endif /* !CONFIG_SYS_CACHELINE_SIZE */
-
-void flush_cache(ulong start_addr, ulong size)
-{
- unsigned long ilsize = icache_line_size();
- unsigned long dlsize = dcache_line_size();
- unsigned long addr, aend;
-
- /* aend will be miscalculated when size is zero, so we return here */
- if (size == 0)
- return;
-
- addr = start_addr & ~(dlsize - 1);
- aend = (start_addr + size - 1) & ~(dlsize - 1);
-
- if (ilsize == dlsize) {
- /* flush I-cache & D-cache simultaneously */
- while (1) {
- cache_op(HIT_WRITEBACK_INV_D, addr);
- cache_op(HIT_INVALIDATE_I, addr);
- if (addr == aend)
- break;
- addr += dlsize;
- }
- return;
- }
-
- /* flush D-cache */
- while (1) {
- cache_op(HIT_WRITEBACK_INV_D, addr);
- if (addr == aend)
- break;
- addr += dlsize;
- }
-
- /* flush I-cache */
- addr = start_addr & ~(ilsize - 1);
- aend = (start_addr + size - 1) & ~(ilsize - 1);
- while (1) {
- cache_op(HIT_INVALIDATE_I, addr);
- if (addr == aend)
- break;
- addr += ilsize;
- }
-}
-
-void flush_dcache_range(ulong start_addr, ulong stop)
-{
- unsigned long lsize = dcache_line_size();
- unsigned long addr = start_addr & ~(lsize - 1);
- unsigned long aend = (stop - 1) & ~(lsize - 1);
-
- while (1) {
- cache_op(HIT_WRITEBACK_INV_D, addr);
- if (addr == aend)
- break;
- addr += lsize;
- }
-}
-
-void invalidate_dcache_range(ulong start_addr, ulong stop)
-{
- unsigned long lsize = dcache_line_size();
- unsigned long addr = start_addr & ~(lsize - 1);
- unsigned long aend = (stop - 1) & ~(lsize - 1);
-
- while (1) {
- cache_op(HIT_INVALIDATE_D, addr);
- if (addr == aend)
- break;
- addr += lsize;
- }
-}
-
-void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1)
-{
- write_c0_entrylo0(low0);
- write_c0_pagemask(pagemask);
- write_c0_entrylo1(low1);
- write_c0_entryhi(hi);
- write_c0_index(index);
- tlb_write_indexed();
-}
-
-int cpu_eth_init(bd_t *bis)
-{
-#ifdef CONFIG_SOC_AU1X00
- au1x00_enet_initialize(bis);
-#endif
- return 0;
-}
diff --git a/arch/mips/cpu/mips64/Makefile b/arch/mips/cpu/mips64/Makefile
deleted file mode 100644
index 899c319..0000000
--- a/arch/mips/cpu/mips64/Makefile
+++ /dev/null
@@ -1,9 +0,0 @@
-#
-# (C) Copyright 2003-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier: GPL-2.0+
-#
-
-extra-y = start.o
-obj-y = cpu.o interrupts.o time.o cache.o
diff --git a/arch/mips/cpu/mips64/cache.S b/arch/mips/cpu/mips64/cache.S
deleted file mode 100644
index 36d8688..0000000
--- a/arch/mips/cpu/mips64/cache.S
+++ /dev/null
@@ -1,213 +0,0 @@
-/*
- * Cache-handling routined for MIPS CPUs
- *
- * Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm-offsets.h>
-#include <config.h>
-#include <asm/asm.h>
-#include <asm/regdef.h>
-#include <asm/mipsregs.h>
-#include <asm/addrspace.h>
-#include <asm/cacheops.h>
-
-#define RA t9
-
-/*
- * 16kB is the maximum size of instruction and data caches on MIPS 4K,
- * 64kB is on 4KE, 24K, 5K, etc. Set bigger size for convenience.
- *
- * Note that the above size is the maximum size of primary cache. U-Boot
- * doesn't have L2 cache support for now.
- */
-#define MIPS_MAX_CACHE_SIZE 0x10000
-
-#define INDEX_BASE CKSEG0
-
- .macro cache_op op addr
- .set push
- .set noreorder
- .set mips3
- cache \op, 0(\addr)
- .set pop
- .endm
-
- .macro f_fill64 dst, offset, val
- LONG_S \val, (\offset + 0 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 1 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 2 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 3 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 4 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 5 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 6 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 7 * LONGSIZE)(\dst)
-#if LONGSIZE == 4
- LONG_S \val, (\offset + 8 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 9 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 10 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 11 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 12 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 13 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 14 * LONGSIZE)(\dst)
- LONG_S \val, (\offset + 15 * LONGSIZE)(\dst)
-#endif
- .endm
-
-/*
- * mips_init_icache(uint PRId, ulong icache_size, unchar icache_linesz)
- */
-LEAF(mips_init_icache)
- blez a1, 9f
- mtc0 zero, CP0_TAGLO
- /* clear tag to invalidate */
- PTR_LI t0, INDEX_BASE
- PTR_ADDU t1, t0, a1
-1: cache_op INDEX_STORE_TAG_I t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
- /* fill once, so data field parity is correct */
- PTR_LI t0, INDEX_BASE
-2: cache_op FILL t0
- PTR_ADDU t0, a2
- bne t0, t1, 2b
- /* invalidate again - prudent but not strictly neccessary */
- PTR_LI t0, INDEX_BASE
-1: cache_op INDEX_STORE_TAG_I t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
-9: jr ra
- END(mips_init_icache)
-
-/*
- * mips_init_dcache(uint PRId, ulong dcache_size, unchar dcache_linesz)
- */
-LEAF(mips_init_dcache)
- blez a1, 9f
- mtc0 zero, CP0_TAGLO
- /* clear all tags */
- PTR_LI t0, INDEX_BASE
- PTR_ADDU t1, t0, a1
-1: cache_op INDEX_STORE_TAG_D t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
- /* load from each line (in cached space) */
- PTR_LI t0, INDEX_BASE
-2: LONG_L zero, 0(t0)
- PTR_ADDU t0, a2
- bne t0, t1, 2b
- /* clear all tags */
- PTR_LI t0, INDEX_BASE
-1: cache_op INDEX_STORE_TAG_D t0
- PTR_ADDU t0, a2
- bne t0, t1, 1b
-9: jr ra
- END(mips_init_dcache)
-
-/*
- * mips_cache_reset - low level initialisation of the primary caches
- *
- * This routine initialises the primary caches to ensure that they have good
- * parity. It must be called by the ROM before any cached locations are used
- * to prevent the possibility of data with bad parity being written to memory.
- *
- * To initialise the instruction cache it is essential that a source of data
- * with good parity is available. This routine will initialise an area of
- * memory starting at location zero to be used as a source of parity.
- *
- * RETURNS: N/A
- *
- */
-NESTED(mips_cache_reset, 0, ra)
- move RA, ra
- li t2, CONFIG_SYS_ICACHE_SIZE
- li t3, CONFIG_SYS_DCACHE_SIZE
- li t8, CONFIG_SYS_CACHELINE_SIZE
-
- li v0, MIPS_MAX_CACHE_SIZE
-
- /*
- * Now clear that much memory starting from zero.
- */
- PTR_LI a0, CKSEG1
- PTR_ADDU a1, a0, v0
-2: PTR_ADDIU a0, 64
- f_fill64 a0, -64, zero
- bne a0, a1, 2b
-
- /*
- * The caches are probably in an indeterminate state,
- * so we force good parity into them by doing an
- * invalidate, load/fill, invalidate for each line.
- */
-
- /*
- * Assume bottom of RAM will generate good parity for the cache.
- */
-
- /*
- * Initialize the I-cache first,
- */
- move a1, t2
- move a2, t8
- PTR_LA v1, mips_init_icache
- jalr v1
-
- /*
- * then initialize D-cache.
- */
- move a1, t3
- move a2, t8
- PTR_LA v1, mips_init_dcache
- jalr v1
-
- jr RA
- END(mips_cache_reset)
-
-/*
- * dcache_status - get cache status
- *
- * RETURNS: 0 - cache disabled; 1 - cache enabled
- *
- */
-LEAF(dcache_status)
- mfc0 t0, CP0_CONFIG
- li t1, CONF_CM_UNCACHED
- andi t0, t0, CONF_CM_CMASK
- move v0, zero
- beq t0, t1, 2f
- li v0, 1
-2: jr ra
- END(dcache_status)
-
-/*
- * dcache_disable - disable cache
- *
- * RETURNS: N/A
- *
- */
-LEAF(dcache_disable)
- mfc0 t0, CP0_CONFIG
- li t1, -8
- and t0, t0, t1
- ori t0, t0, CONF_CM_UNCACHED
- mtc0 t0, CP0_CONFIG
- jr ra
- END(dcache_disable)
-
-/*
- * dcache_enable - enable cache
- *
- * RETURNS: N/A
- *
- */
-LEAF(dcache_enable)
- mfc0 t0, CP0_CONFIG
- ori t0, CONF_CM_CMASK
- xori t0, CONF_CM_CMASK
- ori t0, CONF_CM_CACHABLE_NONCOHERENT
- mtc0 t0, CP0_CONFIG
- jr ra
- END(dcache_enable)
diff --git a/arch/mips/cpu/mips64/cpu.c b/arch/mips/cpu/mips64/cpu.c
deleted file mode 100644
index 9f45cfc..0000000
--- a/arch/mips/cpu/mips64/cpu.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <command.h>
-#include <netdev.h>
-#include <asm/mipsregs.h>
-#include <asm/cacheops.h>
-#include <asm/reboot.h>
-
-#define cache_op(op, addr) \
- __asm__ __volatile__( \
- " .set push\n" \
- " .set noreorder\n" \
- " .set mips64\n" \
- " cache %0, %1\n" \
- " .set pop\n" \
- : \
- : "i" (op), "R" (*(unsigned char *)(addr)))
-
-void __attribute__((weak)) _machine_restart(void)
-{
- fprintf(stderr, "*** reset failed ***\n");
-
- while (1)
- /* NOP */;
-}
-
-int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- _machine_restart();
-
- return 0;
-}
-
-void flush_cache(ulong start_addr, ulong size)
-{
- unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
- unsigned long addr = start_addr & ~(lsize - 1);
- unsigned long aend = (start_addr + size - 1) & ~(lsize - 1);
-
- /* aend will be miscalculated when size is zero, so we return here */
- if (size == 0)
- return;
-
- while (1) {
- cache_op(HIT_WRITEBACK_INV_D, addr);
- cache_op(HIT_INVALIDATE_I, addr);
- if (addr == aend)
- break;
- addr += lsize;
- }
-}
-
-void flush_dcache_range(ulong start_addr, ulong stop)
-{
- unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
- unsigned long addr = start_addr & ~(lsize - 1);
- unsigned long aend = (stop - 1) & ~(lsize - 1);
-
- while (1) {
- cache_op(HIT_WRITEBACK_INV_D, addr);
- if (addr == aend)
- break;
- addr += lsize;
- }
-}
-
-void invalidate_dcache_range(ulong start_addr, ulong stop)
-{
- unsigned long lsize = CONFIG_SYS_CACHELINE_SIZE;
- unsigned long addr = start_addr & ~(lsize - 1);
- unsigned long aend = (stop - 1) & ~(lsize - 1);
-
- while (1) {
- cache_op(HIT_INVALIDATE_D, addr);
- if (addr == aend)
- break;
- addr += lsize;
- }
-}
-
-void write_one_tlb(int index, u32 pagemask, u32 hi, u32 low0, u32 low1)
-{
- write_c0_entrylo0(low0);
- write_c0_pagemask(pagemask);
- write_c0_entrylo1(low1);
- write_c0_entryhi(hi);
- write_c0_index(index);
- tlb_write_indexed();
-}
diff --git a/arch/mips/cpu/mips64/interrupts.c b/arch/mips/cpu/mips64/interrupts.c
deleted file mode 100644
index 275fcf5..0000000
--- a/arch/mips/cpu/mips64/interrupts.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-
-int interrupt_init(void)
-{
- return 0;
-}
-
-void enable_interrupts(void)
-{
-}
-
-int disable_interrupts(void)
-{
- return 0;
-}
diff --git a/arch/mips/cpu/mips64/start.S b/arch/mips/cpu/mips64/start.S
deleted file mode 100644
index 471bc1e..0000000
--- a/arch/mips/cpu/mips64/start.S
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * Startup Code for MIPS64 CPU-core
- *
- * Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm-offsets.h>
-#include <config.h>
-#include <asm/regdef.h>
-#include <asm/mipsregs.h>
-
-#ifndef CONFIG_SYS_MIPS_CACHE_MODE
-#define CONFIG_SYS_MIPS_CACHE_MODE CONF_CM_CACHABLE_NONCOHERENT
-#endif
-
-#ifndef CONFIG_SYS_INIT_SP_ADDR
-#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + \
- CONFIG_SYS_INIT_SP_OFFSET)
-#endif
-
-#ifdef CONFIG_SYS_LITTLE_ENDIAN
-#define MIPS64_R_INFO(ssym, r_type3, r_type2, r_type) \
- (((r_type) << 24) | ((r_type2) << 16) | ((r_type3) << 8) | (ssym))
-#else
-#define MIPS64_R_INFO(ssym, r_type3, r_type2, r_type) \
- ((r_type) | ((r_type2) << 8) | ((r_type3) << 16) | (ssym) << 24)
-#endif
-
- /*
- * For the moment disable interrupts, mark the kernel mode and
- * set ST0_KX so that the CPU does not spit fire when using
- * 64-bit addresses.
- */
- .macro setup_c0_status set clr
- .set push
- mfc0 t0, CP0_STATUS
- or t0, ST0_CU0 | \set | 0x1f | \clr
- xor t0, 0x1f | \clr
- mtc0 t0, CP0_STATUS
- .set noreorder
- sll zero, 3 # ehb
- .set pop
- .endm
-
- .set noreorder
-
- .globl _start
- .text
-_start:
- /* U-boot entry point */
- b reset
- nop
-
- .org 0x200
- /* TLB refill, 32 bit task */
-1: b 1b
- nop
-
- .org 0x280
- /* XTLB refill, 64 bit task */
-1: b 1b
- nop
-
- .org 0x300
- /* Cache error exception */
-1: b 1b
- nop
-
- .org 0x380
- /* General exception */
-1: b 1b
- nop
-
- .org 0x400
- /* Catch interrupt exceptions */
-1: b 1b
- nop
-
- .org 0x480
- /* EJTAG debug exception */
-1: b 1b
- nop
-
- .align 4
-reset:
-
- /* Clear watch registers */
- dmtc0 zero, CP0_WATCHLO
- dmtc0 zero, CP0_WATCHHI
-
- /* WP(Watch Pending), SW0/1 should be cleared */
- mtc0 zero, CP0_CAUSE
-
- setup_c0_status ST0_KX 0
-
- /* Init Timer */
- mtc0 zero, CP0_COUNT
- mtc0 zero, CP0_COMPARE
-
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
- /* CONFIG0 register */
- dli t0, CONF_CM_UNCACHED
- mtc0 t0, CP0_CONFIG
-#endif
-
- /*
- * Initialize $gp, force 8 byte alignment of bal instruction to forbid
- * the compiler to put nop's between bal and _gp. This is required to
- * keep _gp and ra aligned to 8 byte.
- */
- .align 3
- bal 1f
- nop
- .dword _gp
-1:
- ld gp, 0(ra)
-
-#ifndef CONFIG_SKIP_LOWLEVEL_INIT
- /* Initialize any external memory */
- dla t9, lowlevel_init
- jalr t9
- nop
-
- /* Initialize caches... */
- dla t9, mips_cache_reset
- jalr t9
- nop
-
- /* ... and enable them */
- dli t0, CONFIG_SYS_MIPS_CACHE_MODE
- mtc0 t0, CP0_CONFIG
-#endif
-
- /* Set up temporary stack */
- dli t0, -16
- dli t1, CONFIG_SYS_INIT_SP_ADDR
- and sp, t1, t0 # force 16 byte alignment
- dsub sp, sp, GD_SIZE # reserve space for gd
- and sp, sp, t0 # force 16 byte alignment
- move k0, sp # save gd pointer
-#ifdef CONFIG_SYS_MALLOC_F_LEN
- dli t2, CONFIG_SYS_MALLOC_F_LEN
- dsub sp, sp, t2 # reserve space for early malloc
- and sp, sp, t0 # force 16 byte alignment
-#endif
- move fp, sp
-
- /* Clear gd */
- move t0, k0
-1:
- sw zero, 0(t0)
- blt t0, t1, 1b
- daddi t0, 4
-
-#ifdef CONFIG_SYS_MALLOC_F_LEN
- daddu t0, k0, GD_MALLOC_BASE # gd->malloc_base offset
- sw sp, 0(t0)
-#endif
-
- dla t9, board_init_f
- jr t9
- move ra, zero
-
-/*
- * void relocate_code (addr_sp, gd, addr_moni)
- *
- * This "function" does not return, instead it continues in RAM
- * after relocating the monitor code.
- *
- * a0 = addr_sp
- * a1 = gd
- * a2 = destination address
- */
- .globl relocate_code
- .ent relocate_code
-relocate_code:
- move sp, a0 # set new stack pointer
- move fp, sp
-
- move s0, a1 # save gd in s0
- move s2, a2 # save destination address in s2
-
- dli t0, CONFIG_SYS_MONITOR_BASE
- dsub s1, s2, t0 # s1 <-- relocation offset
-
- dla t3, in_ram
- ld t2, -24(t3) # t2 <-- __image_copy_end
- move t1, a2
-
- dadd gp, s1 # adjust gp
-
- /*
- * t0 = source address
- * t1 = target address
- * t2 = source end address
- */
-1:
- lw t3, 0(t0)
- sw t3, 0(t1)
- daddu t0, 4
- blt t0, t2, 1b
- daddu t1, 4
-
- /* If caches were enabled, we would have to flush them here. */
- dsub a1, t1, s2 # a1 <-- size
- dla t9, flush_cache
- jalr t9
- move a0, s2 # a0 <-- destination address
-
- /* Jump to where we've relocated ourselves */
- daddi t0, s2, in_ram - _start
- jr t0
- nop
-
- .dword __rel_dyn_end
- .dword __rel_dyn_start
- .dword __image_copy_end
- .dword _GLOBAL_OFFSET_TABLE_
- .dword num_got_entries
-
-in_ram:
- /*
- * Now we want to update GOT.
- *
- * GOT[0] is reserved. GOT[1] is also reserved for the dynamic object
- * generated by GNU ld. Skip these reserved entries from relocation.
- */
- ld t3, -8(t0) # t3 <-- num_got_entries
- ld t8, -16(t0) # t8 <-- _GLOBAL_OFFSET_TABLE_
- dadd t8, s1 # t8 now holds relocated _G_O_T_
- daddi t8, t8, 16 # skipping first two entries
- dli t2, 2
-1:
- ld t1, 0(t8)
- beqz t1, 2f
- dadd t1, s1
- sd t1, 0(t8)
-2:
- daddi t2, 1
- blt t2, t3, 1b
- daddi t8, 8
-
- /* Update dynamic relocations */
- ld t1, -32(t0) # t1 <-- __rel_dyn_start
- ld t2, -40(t0) # t2 <-- __rel_dyn_end
-
- b 2f # skip first reserved entry
- daddi t1, 16
-
-1:
- lw t8, -4(t1) # t8 <-- relocation info
-
- dli t3, MIPS64_R_INFO(0x00, 0x00, 0x12, 0x03)
- bne t8, t3, 2f # skip non R_MIPS_REL32 entries
- nop
-
- ld t3, -16(t1) # t3 <-- location to fix up in FLASH
-
- ld t8, 0(t3) # t8 <-- original pointer
- dadd t8, s1 # t8 <-- adjusted pointer
-
- dadd t3, s1 # t3 <-- location to fix up in RAM
- sd t8, 0(t3)
-
-2:
- blt t1, t2, 1b
- daddi t1, 16 # each rel.dyn entry is 16 bytes
-
- /*
- * Clear BSS
- *
- * GOT is now relocated. Thus __bss_start and __bss_end can be
- * accessed directly via $gp.
- */
- dla t1, __bss_start # t1 <-- __bss_start
- dla t2, __bss_end # t2 <-- __bss_end
-
-1:
- sd zero, 0(t1)
- blt t1, t2, 1b
- daddi t1, 8
-
- move a0, s0 # a0 <-- gd
- move a1, s2
- dla t9, board_init_r
- jr t9
- move ra, zero
-
- .end relocate_code
diff --git a/arch/mips/cpu/mips64/time.c b/arch/mips/cpu/mips64/time.c
deleted file mode 100644
index 553da5f..0000000
--- a/arch/mips/cpu/mips64/time.c
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * (C) Copyright 2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <asm/mipsregs.h>
-
-unsigned long notrace timer_read_counter(void)
-{
- return read_c0_count();
-}
-
-ulong notrace get_tbclk(void)
-{
- return CONFIG_SYS_MIPS_TIMER_FREQ;
-}
diff --git a/arch/mips/cpu/mips32/start.S b/arch/mips/cpu/start.S
similarity index 61%
rename from arch/mips/cpu/mips32/start.S
rename to arch/mips/cpu/start.S
index 36b92cc..3b5b622 100644
--- a/arch/mips/cpu/mips32/start.S
+++ b/arch/mips/cpu/start.S
@@ -8,6 +8,7 @@
#include <asm-offsets.h>
#include <config.h>
+#include <asm/asm.h>
#include <asm/regdef.h>
#include <asm/mipsregs.h>
@@ -20,6 +21,23 @@
CONFIG_SYS_INIT_SP_OFFSET)
#endif
+#ifdef CONFIG_32BIT
+# define MIPS_RELOC 3
+# define STATUS_SET 0
+#endif
+
+#ifdef CONFIG_64BIT
+# ifdef CONFIG_SYS_LITTLE_ENDIAN
+# define MIPS64_R_INFO(ssym, r_type3, r_type2, r_type) \
+ (((r_type) << 24) | ((r_type2) << 16) | ((r_type3) << 8) | (ssym))
+# else
+# define MIPS64_R_INFO(ssym, r_type3, r_type2, r_type) \
+ ((r_type) | ((r_type2) << 8) | ((r_type3) << 16) | (ssym) << 24)
+# endif
+# define MIPS_RELOC MIPS64_R_INFO(0x00, 0x00, 0x12, 0x03)
+# define STATUS_SET ST0_KX
+#endif
+
/*
* For the moment disable interrupts, mark the kernel mode and
* set ST0_KX so that the CPU does not spit fire when using
@@ -98,13 +116,13 @@
reset:
/* Clear watch registers */
- mtc0 zero, CP0_WATCHLO
- mtc0 zero, CP0_WATCHHI
+ MTC0 zero, CP0_WATCHLO
+ MTC0 zero, CP0_WATCHHI
/* WP(Watch Pending), SW0/1 should be cleared */
mtc0 zero, CP0_CAUSE
- setup_c0_status 0 0
+ setup_c0_status STATUS_SET 0
/* Init Timer */
mtc0 zero, CP0_COUNT
@@ -116,21 +134,26 @@
mtc0 t0, CP0_CONFIG
#endif
- /* Initialize $gp */
+ /*
+ * Initialize $gp, force pointer sized alignment of bal instruction to
+ * forbid the compiler to put nop's between bal and _gp. This is
+ * required to keep _gp and ra aligned to 8 byte.
+ */
+ .align PTRLOG
bal 1f
nop
- .word _gp
+ PTR _gp
1:
- lw gp, 0(ra)
+ PTR_L gp, 0(ra)
#ifndef CONFIG_SKIP_LOWLEVEL_INIT
/* Initialize any external memory */
- la t9, lowlevel_init
+ PTR_LA t9, lowlevel_init
jalr t9
nop
/* Initialize caches... */
- la t9, mips_cache_reset
+ PTR_LA t9, mips_cache_reset
jalr t9
nop
@@ -140,15 +163,15 @@
#endif
/* Set up temporary stack */
- li t0, -16
- li t1, CONFIG_SYS_INIT_SP_ADDR
+ PTR_LI t0, -16
+ PTR_LI t1, CONFIG_SYS_INIT_SP_ADDR
and sp, t1, t0 # force 16 byte alignment
- sub sp, sp, GD_SIZE # reserve space for gd
+ PTR_SUB sp, sp, GD_SIZE # reserve space for gd
and sp, sp, t0 # force 16 byte alignment
move k0, sp # save gd pointer
#ifdef CONFIG_SYS_MALLOC_F_LEN
- li t2, CONFIG_SYS_MALLOC_F_LEN
- sub sp, sp, t2 # reserve space for early malloc
+ PTR_LI t2, CONFIG_SYS_MALLOC_F_LEN
+ PTR_SUB sp, sp, t2 # reserve space for early malloc
and sp, sp, t0 # force 16 byte alignment
#endif
move fp, sp
@@ -158,14 +181,14 @@
1:
sw zero, 0(t0)
blt t0, t1, 1b
- addi t0, 4
+ PTR_ADDI t0, 4
#ifdef CONFIG_SYS_MALLOC_F_LEN
- addu t0, k0, GD_MALLOC_BASE # gd->malloc_base offset
+ PTR_ADDU t0, k0, GD_MALLOC_BASE # gd->malloc_base offset
sw sp, 0(t0)
#endif
- la t9, board_init_f
+ PTR_LA t9, board_init_f
jr t9
move ra, zero
@@ -188,14 +211,14 @@
move s0, a1 # save gd in s0
move s2, a2 # save destination address in s2
- li t0, CONFIG_SYS_MONITOR_BASE
- sub s1, s2, t0 # s1 <-- relocation offset
+ PTR_LI t0, CONFIG_SYS_MONITOR_BASE
+ PTR_SUB s1, s2, t0 # s1 <-- relocation offset
- la t3, in_ram
- lw t2, -12(t3) # t2 <-- __image_copy_end
+ PTR_LA t3, in_ram
+ PTR_L t2, -(3 * PTRSIZE)(t3) # t2 <-- __image_copy_end
move t1, a2
- add gp, s1 # adjust gp
+ PTR_ADD gp, s1 # adjust gp
/*
* t0 = source address
@@ -205,26 +228,26 @@
1:
lw t3, 0(t0)
sw t3, 0(t1)
- addu t0, 4
+ PTR_ADDU t0, 4
blt t0, t2, 1b
- addu t1, 4
+ PTR_ADDU t1, 4
/* If caches were enabled, we would have to flush them here. */
- sub a1, t1, s2 # a1 <-- size
- la t9, flush_cache
+ PTR_SUB a1, t1, s2 # a1 <-- size
+ PTR_LA t9, flush_cache
jalr t9
move a0, s2 # a0 <-- destination address
/* Jump to where we've relocated ourselves */
- addi t0, s2, in_ram - _start
+ PTR_ADDI t0, s2, in_ram - _start
jr t0
nop
- .word __rel_dyn_end
- .word __rel_dyn_start
- .word __image_copy_end
- .word _GLOBAL_OFFSET_TABLE_
- .word num_got_entries
+ PTR __rel_dyn_end
+ PTR __rel_dyn_start
+ PTR __image_copy_end
+ PTR _GLOBAL_OFFSET_TABLE_
+ PTR num_got_entries
in_ram:
/*
@@ -233,46 +256,46 @@
* GOT[0] is reserved. GOT[1] is also reserved for the dynamic object
* generated by GNU ld. Skip these reserved entries from relocation.
*/
- lw t3, -4(t0) # t3 <-- num_got_entries
- lw t8, -8(t0) # t8 <-- _GLOBAL_OFFSET_TABLE_
- add t8, s1 # t8 now holds relocated _G_O_T_
- addi t8, t8, 8 # skipping first two entries
- li t2, 2
+ PTR_L t3, -(1 * PTRSIZE)(t0) # t3 <-- num_got_entries
+ PTR_L t8, -(2 * PTRSIZE)(t0) # t8 <-- _GLOBAL_OFFSET_TABLE_
+ PTR_ADD t8, s1 # t8 now holds relocated _G_O_T_
+ PTR_ADDI t8, t8, 2 * PTRSIZE # skipping first two entries
+ PTR_LI t2, 2
1:
- lw t1, 0(t8)
+ PTR_L t1, 0(t8)
beqz t1, 2f
- add t1, s1
- sw t1, 0(t8)
+ PTR_ADD t1, s1
+ PTR_S t1, 0(t8)
2:
- addi t2, 1
+ PTR_ADDI t2, 1
blt t2, t3, 1b
- addi t8, 4
+ PTR_ADDI t8, PTRSIZE
/* Update dynamic relocations */
- lw t1, -16(t0) # t1 <-- __rel_dyn_start
- lw t2, -20(t0) # t2 <-- __rel_dyn_end
+ PTR_L t1, -(4 * PTRSIZE)(t0) # t1 <-- __rel_dyn_start
+ PTR_L t2, -(5 * PTRSIZE)(t0) # t2 <-- __rel_dyn_end
b 2f # skip first reserved entry
- addi t1, 8
+ PTR_ADDI t1, 2 * PTRSIZE
1:
lw t8, -4(t1) # t8 <-- relocation info
- li t3, 3
- bne t8, t3, 2f # skip non R_MIPS_REL32 entries
+ PTR_LI t3, MIPS_RELOC
+ bne t8, t3, 2f # skip non-MIPS_RELOC entries
nop
- lw t3, -8(t1) # t3 <-- location to fix up in FLASH
+ PTR_L t3, -(2 * PTRSIZE)(t1) # t3 <-- location to fix up in FLASH
- lw t8, 0(t3) # t8 <-- original pointer
- add t8, s1 # t8 <-- adjusted pointer
+ PTR_L t8, 0(t3) # t8 <-- original pointer
+ PTR_ADD t8, s1 # t8 <-- adjusted pointer
- add t3, s1 # t3 <-- location to fix up in RAM
- sw t8, 0(t3)
+ PTR_ADD t3, s1 # t3 <-- location to fix up in RAM
+ PTR_S t8, 0(t3)
2:
blt t1, t2, 1b
- addi t1, 8 # each rel.dyn entry is 8 bytes
+ PTR_ADDI t1, 2 * PTRSIZE # each rel.dyn entry is 2*PTRSIZE bytes
/*
* Clear BSS
@@ -280,17 +303,17 @@
* GOT is now relocated. Thus __bss_start and __bss_end can be
* accessed directly via $gp.
*/
- la t1, __bss_start # t1 <-- __bss_start
- la t2, __bss_end # t2 <-- __bss_end
+ PTR_LA t1, __bss_start # t1 <-- __bss_start
+ PTR_LA t2, __bss_end # t2 <-- __bss_end
1:
- sw zero, 0(t1)
+ PTR_S zero, 0(t1)
blt t1, t2, 1b
- addi t1, 4
+ PTR_ADDI t1, PTRSIZE
move a0, s0 # a0 <-- gd
move a1, s2
- la t9, board_init_r
+ PTR_LA t9, board_init_r
jr t9
move ra, zero
diff --git a/arch/mips/cpu/mips32/time.c b/arch/mips/cpu/time.c
similarity index 100%
rename from arch/mips/cpu/mips32/time.c
rename to arch/mips/cpu/time.c
diff --git a/arch/mips/include/asm/cacheops.h b/arch/mips/include/asm/cacheops.h
index 6464250..75ec380 100644
--- a/arch/mips/include/asm/cacheops.h
+++ b/arch/mips/include/asm/cacheops.h
@@ -11,6 +11,19 @@
#ifndef __ASM_CACHEOPS_H
#define __ASM_CACHEOPS_H
+#ifndef __ASSEMBLY__
+
+static inline void mips_cache(int op, const volatile void *addr)
+{
+#ifdef __GCC_HAVE_BUILTIN_MIPS_CACHE
+ __builtin_mips_cache(op, addr);
+#else
+ __asm__ __volatile__("cache %0, %1" : : "i"(op), "R"(addr))
+#endif
+}
+
+#endif /* !__ASSEMBLY__ */
+
/*
* Cache Operations available on all MIPS processors with R4000-style caches
*/
diff --git a/arch/mips/include/asm/malta.h b/arch/mips/include/asm/malta.h
index 9e7c045..d9ffc15 100644
--- a/arch/mips/include/asm/malta.h
+++ b/arch/mips/include/asm/malta.h
@@ -64,4 +64,9 @@
#define PCI_CFG_PIIX4_GENCFG_SERIRQ (1 << 16)
+#define PCI_CFG_PIIX4_IDETIM_PRI 0x40
+#define PCI_CFG_PIIX4_IDETIM_SEC 0x42
+
+#define PCI_CFG_PIIX4_IDETIM_IDE (1 << 15)
+
#endif /* _MIPS_ASM_MALTA_H */
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 7f9b653..ac536da 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -5,6 +5,8 @@
# SPDX-License-Identifier: GPL-2.0+
#
+obj-y += cache.o
+obj-y += cache_init.o
obj-y += io.o
obj-$(CONFIG_CMD_BOOTM) += bootm.o
diff --git a/arch/mips/lib/cache.c b/arch/mips/lib/cache.c
new file mode 100644
index 0000000..e245614
--- /dev/null
+++ b/arch/mips/lib/cache.c
@@ -0,0 +1,118 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/cacheops.h>
+#include <asm/mipsregs.h>
+
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+
+static inline unsigned long icache_line_size(void)
+{
+ return CONFIG_SYS_CACHELINE_SIZE;
+}
+
+static inline unsigned long dcache_line_size(void)
+{
+ return CONFIG_SYS_CACHELINE_SIZE;
+}
+
+#else /* !CONFIG_SYS_CACHELINE_SIZE */
+
+static inline unsigned long icache_line_size(void)
+{
+ unsigned long conf1, il;
+ conf1 = read_c0_config1();
+ il = (conf1 & MIPS_CONF1_IL) >> MIPS_CONF1_IL_SHIFT;
+ if (!il)
+ return 0;
+ return 2 << il;
+}
+
+static inline unsigned long dcache_line_size(void)
+{
+ unsigned long conf1, dl;
+ conf1 = read_c0_config1();
+ dl = (conf1 & MIPS_CONF1_DL) >> MIPS_CONF1_DL_SHIFT;
+ if (!dl)
+ return 0;
+ return 2 << dl;
+}
+
+#endif /* !CONFIG_SYS_CACHELINE_SIZE */
+
+void flush_cache(ulong start_addr, ulong size)
+{
+ unsigned long ilsize = icache_line_size();
+ unsigned long dlsize = dcache_line_size();
+ const void *addr, *aend;
+
+ /* aend will be miscalculated when size is zero, so we return here */
+ if (size == 0)
+ return;
+
+ addr = (const void *)(start_addr & ~(dlsize - 1));
+ aend = (const void *)((start_addr + size - 1) & ~(dlsize - 1));
+
+ if (ilsize == dlsize) {
+ /* flush I-cache & D-cache simultaneously */
+ while (1) {
+ mips_cache(HIT_WRITEBACK_INV_D, addr);
+ mips_cache(HIT_INVALIDATE_I, addr);
+ if (addr == aend)
+ break;
+ addr += dlsize;
+ }
+ return;
+ }
+
+ /* flush D-cache */
+ while (1) {
+ mips_cache(HIT_WRITEBACK_INV_D, addr);
+ if (addr == aend)
+ break;
+ addr += dlsize;
+ }
+
+ /* flush I-cache */
+ addr = (const void *)(start_addr & ~(ilsize - 1));
+ aend = (const void *)((start_addr + size - 1) & ~(ilsize - 1));
+ while (1) {
+ mips_cache(HIT_INVALIDATE_I, addr);
+ if (addr == aend)
+ break;
+ addr += ilsize;
+ }
+}
+
+void flush_dcache_range(ulong start_addr, ulong stop)
+{
+ unsigned long lsize = dcache_line_size();
+ const void *addr = (const void *)(start_addr & ~(lsize - 1));
+ const void *aend = (const void *)((stop - 1) & ~(lsize - 1));
+
+ while (1) {
+ mips_cache(HIT_WRITEBACK_INV_D, addr);
+ if (addr == aend)
+ break;
+ addr += lsize;
+ }
+}
+
+void invalidate_dcache_range(ulong start_addr, ulong stop)
+{
+ unsigned long lsize = dcache_line_size();
+ const void *addr = (const void *)(start_addr & ~(lsize - 1));
+ const void *aend = (const void *)((stop - 1) & ~(lsize - 1));
+
+ while (1) {
+ mips_cache(HIT_INVALIDATE_D, addr);
+ if (addr == aend)
+ break;
+ addr += lsize;
+ }
+}
diff --git a/arch/mips/lib/cache_init.S b/arch/mips/lib/cache_init.S
new file mode 100644
index 0000000..137d728
--- /dev/null
+++ b/arch/mips/lib/cache_init.S
@@ -0,0 +1,241 @@
+/*
+ * Cache-handling routined for MIPS CPUs
+ *
+ * Copyright (c) 2003 Wolfgang Denk <wd@denx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <asm/asm.h>
+#include <asm/regdef.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/cacheops.h>
+
+#ifndef CONFIG_SYS_MIPS_CACHE_MODE
+#define CONFIG_SYS_MIPS_CACHE_MODE CONF_CM_CACHABLE_NONCOHERENT
+#endif
+
+#define INDEX_BASE CKSEG0
+
+ .macro f_fill64 dst, offset, val
+ LONG_S \val, (\offset + 0 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 1 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 2 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 3 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 4 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 5 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 6 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 7 * LONGSIZE)(\dst)
+#if LONGSIZE == 4
+ LONG_S \val, (\offset + 8 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 9 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 10 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 11 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 12 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 13 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 14 * LONGSIZE)(\dst)
+ LONG_S \val, (\offset + 15 * LONGSIZE)(\dst)
+#endif
+ .endm
+
+ .macro cache_loop curr, end, line_sz, op
+10: cache \op, 0(\curr)
+ PTR_ADDU \curr, \curr, \line_sz
+ bne \curr, \end, 10b
+ .endm
+
+ .macro l1_info sz, line_sz, off
+ .set push
+ .set noat
+
+ mfc0 $1, CP0_CONFIG, 1
+
+ /* detect line size */
+ srl \line_sz, $1, \off + MIPS_CONF1_DL_SHIFT - MIPS_CONF1_DA_SHIFT
+ andi \line_sz, \line_sz, (MIPS_CONF1_DL >> MIPS_CONF1_DL_SHIFT)
+ move \sz, zero
+ beqz \line_sz, 10f
+ li \sz, 2
+ sllv \line_sz, \sz, \line_sz
+
+ /* detect associativity */
+ srl \sz, $1, \off + MIPS_CONF1_DA_SHIFT - MIPS_CONF1_DA_SHIFT
+ andi \sz, \sz, (MIPS_CONF1_DA >> MIPS_CONF1_DA_SHIFT)
+ addi \sz, \sz, 1
+
+ /* sz *= line_sz */
+ mul \sz, \sz, \line_sz
+
+ /* detect log32(sets) */
+ srl $1, $1, \off + MIPS_CONF1_DS_SHIFT - MIPS_CONF1_DA_SHIFT
+ andi $1, $1, (MIPS_CONF1_DS >> MIPS_CONF1_DS_SHIFT)
+ addiu $1, $1, 1
+ andi $1, $1, 0x7
+
+ /* sz <<= log32(sets) */
+ sllv \sz, \sz, $1
+
+ /* sz *= 32 */
+ li $1, 32
+ mul \sz, \sz, $1
+10:
+ .set pop
+ .endm
+/*
+ * mips_cache_reset - low level initialisation of the primary caches
+ *
+ * This routine initialises the primary caches to ensure that they have good
+ * parity. It must be called by the ROM before any cached locations are used
+ * to prevent the possibility of data with bad parity being written to memory.
+ *
+ * To initialise the instruction cache it is essential that a source of data
+ * with good parity is available. This routine will initialise an area of
+ * memory starting at location zero to be used as a source of parity.
+ *
+ * RETURNS: N/A
+ *
+ */
+LEAF(mips_cache_reset)
+#ifdef CONFIG_SYS_ICACHE_SIZE
+ li t2, CONFIG_SYS_ICACHE_SIZE
+ li t8, CONFIG_SYS_CACHELINE_SIZE
+#else
+ l1_info t2, t8, MIPS_CONF1_IA_SHIFT
+#endif
+
+#ifdef CONFIG_SYS_DCACHE_SIZE
+ li t3, CONFIG_SYS_DCACHE_SIZE
+ li t9, CONFIG_SYS_CACHELINE_SIZE
+#else
+ l1_info t3, t9, MIPS_CONF1_DA_SHIFT
+#endif
+
+#ifdef CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD
+
+ /* Determine the largest L1 cache size */
+#if defined(CONFIG_SYS_ICACHE_SIZE) && defined(CONFIG_SYS_DCACHE_SIZE)
+#if CONFIG_SYS_ICACHE_SIZE > CONFIG_SYS_DCACHE_SIZE
+ li v0, CONFIG_SYS_ICACHE_SIZE
+#else
+ li v0, CONFIG_SYS_DCACHE_SIZE
+#endif
+#else
+ move v0, t2
+ sltu t1, t2, t3
+ movn v0, t3, t1
+#endif
+ /*
+ * Now clear that much memory starting from zero.
+ */
+ PTR_LI a0, CKSEG1
+ PTR_ADDU a1, a0, v0
+2: PTR_ADDIU a0, 64
+ f_fill64 a0, -64, zero
+ bne a0, a1, 2b
+
+#endif /* CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD */
+
+ /*
+ * The TagLo registers used depend upon the CPU implementation, but the
+ * architecture requires that it is safe for software to write to both
+ * TagLo selects 0 & 2 covering supported cases.
+ */
+ mtc0 zero, CP0_TAGLO
+ mtc0 zero, CP0_TAGLO, 2
+
+ /*
+ * The caches are probably in an indeterminate state, so we force good
+ * parity into them by doing an invalidate for each line. If
+ * CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD is set then we'll proceed to
+ * perform a load/fill & a further invalidate for each line, assuming
+ * that the bottom of RAM (having just been cleared) will generate good
+ * parity for the cache.
+ */
+
+ /*
+ * Initialize the I-cache first,
+ */
+ blez t2, 1f
+ PTR_LI t0, INDEX_BASE
+ PTR_ADDU t1, t0, t2
+ /* clear tag to invalidate */
+ cache_loop t0, t1, t8, INDEX_STORE_TAG_I
+#ifdef CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD
+ /* fill once, so data field parity is correct */
+ PTR_LI t0, INDEX_BASE
+ cache_loop t0, t1, t8, FILL
+ /* invalidate again - prudent but not strictly neccessary */
+ PTR_LI t0, INDEX_BASE
+ cache_loop t0, t1, t8, INDEX_STORE_TAG_I
+#endif
+
+ /*
+ * then initialize D-cache.
+ */
+1: blez t3, 3f
+ PTR_LI t0, INDEX_BASE
+ PTR_ADDU t1, t0, t3
+ /* clear all tags */
+ cache_loop t0, t1, t9, INDEX_STORE_TAG_D
+#ifdef CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD
+ /* load from each line (in cached space) */
+ PTR_LI t0, INDEX_BASE
+2: LONG_L zero, 0(t0)
+ PTR_ADDU t0, t9
+ bne t0, t1, 2b
+ /* clear all tags */
+ PTR_LI t0, INDEX_BASE
+ cache_loop t0, t1, t9, INDEX_STORE_TAG_D
+#endif
+
+3: jr ra
+ END(mips_cache_reset)
+
+/*
+ * dcache_status - get cache status
+ *
+ * RETURNS: 0 - cache disabled; 1 - cache enabled
+ *
+ */
+LEAF(dcache_status)
+ mfc0 t0, CP0_CONFIG
+ li t1, CONF_CM_UNCACHED
+ andi t0, t0, CONF_CM_CMASK
+ move v0, zero
+ beq t0, t1, 2f
+ li v0, 1
+2: jr ra
+ END(dcache_status)
+
+/*
+ * dcache_disable - disable cache
+ *
+ * RETURNS: N/A
+ *
+ */
+LEAF(dcache_disable)
+ mfc0 t0, CP0_CONFIG
+ li t1, -8
+ and t0, t0, t1
+ ori t0, t0, CONF_CM_UNCACHED
+ mtc0 t0, CP0_CONFIG
+ jr ra
+ END(dcache_disable)
+
+/*
+ * dcache_enable - enable cache
+ *
+ * RETURNS: N/A
+ *
+ */
+LEAF(dcache_enable)
+ mfc0 t0, CP0_CONFIG
+ ori t0, CONF_CM_CMASK
+ xori t0, CONF_CM_CMASK
+ ori t0, CONFIG_SYS_MIPS_CACHE_MODE
+ mtc0 t0, CP0_CONFIG
+ jr ra
+ END(dcache_enable)
diff --git a/arch/mips/cpu/mips32/au1x00/Makefile b/arch/mips/mach-au1x00/Makefile
similarity index 100%
rename from arch/mips/cpu/mips32/au1x00/Makefile
rename to arch/mips/mach-au1x00/Makefile
diff --git a/arch/mips/cpu/mips32/au1x00/au1x00_eth.c b/arch/mips/mach-au1x00/au1x00_eth.c
similarity index 98%
rename from arch/mips/cpu/mips32/au1x00/au1x00_eth.c
rename to arch/mips/mach-au1x00/au1x00_eth.c
index 4770f56..39c5b6b 100644
--- a/arch/mips/cpu/mips32/au1x00/au1x00_eth.c
+++ b/arch/mips/mach-au1x00/au1x00_eth.c
@@ -294,3 +294,9 @@
return 1;
}
+
+int cpu_eth_init(bd_t *bis)
+{
+ au1x00_enet_initialize(bis);
+ return 0;
+}
diff --git a/arch/mips/cpu/mips32/au1x00/au1x00_ide.c b/arch/mips/mach-au1x00/au1x00_ide.c
similarity index 100%
rename from arch/mips/cpu/mips32/au1x00/au1x00_ide.c
rename to arch/mips/mach-au1x00/au1x00_ide.c
diff --git a/arch/mips/cpu/mips32/au1x00/au1x00_serial.c b/arch/mips/mach-au1x00/au1x00_serial.c
similarity index 100%
rename from arch/mips/cpu/mips32/au1x00/au1x00_serial.c
rename to arch/mips/mach-au1x00/au1x00_serial.c
diff --git a/arch/mips/cpu/mips32/au1x00/au1x00_usb_ohci.c b/arch/mips/mach-au1x00/au1x00_usb_ohci.c
similarity index 100%
rename from arch/mips/cpu/mips32/au1x00/au1x00_usb_ohci.c
rename to arch/mips/mach-au1x00/au1x00_usb_ohci.c
diff --git a/arch/mips/cpu/mips32/au1x00/au1x00_usb_ohci.h b/arch/mips/mach-au1x00/au1x00_usb_ohci.h
similarity index 100%
rename from arch/mips/cpu/mips32/au1x00/au1x00_usb_ohci.h
rename to arch/mips/mach-au1x00/au1x00_usb_ohci.h
diff --git a/arch/mips/cpu/mips32/au1x00/config.mk b/arch/mips/mach-au1x00/config.mk
similarity index 100%
rename from arch/mips/cpu/mips32/au1x00/config.mk
rename to arch/mips/mach-au1x00/config.mk
diff --git a/board/imgtec/malta/malta.c b/board/imgtec/malta/malta.c
index 78c4bd4..79562f7 100644
--- a/board/imgtec/malta/malta.c
+++ b/board/imgtec/malta/malta.c
@@ -6,6 +6,7 @@
*/
#include <common.h>
+#include <ide.h>
#include <netdev.h>
#include <pci.h>
#include <pci_gt64120.h>
@@ -123,6 +124,7 @@
reset_base = (void __iomem *)CKSEG1ADDR(MALTA_RESET_BASE);
__raw_writel(GORESET, reset_base);
+ mdelay(1000);
}
int board_early_init_f(void)
@@ -217,4 +219,22 @@
pci_read_config_byte(bdf, PCI_CFG_PIIX4_SERIRQC, &val8);
val8 |= PCI_CFG_PIIX4_SERIRQC_EN | PCI_CFG_PIIX4_SERIRQC_CONT;
pci_write_config_byte(bdf, PCI_CFG_PIIX4_SERIRQC, val8);
+
+ bdf = pci_find_device(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_82371AB, 0);
+ if (bdf == -1)
+ panic("Failed to find PIIX4 IDE controller\n");
+
+ /* enable bus master & IO access */
+ val32 |= PCI_COMMAND_MASTER | PCI_COMMAND_IO;
+ pci_write_config_dword(bdf, PCI_COMMAND, val32);
+
+ /* set latency */
+ pci_write_config_byte(bdf, PCI_LATENCY_TIMER, 0x40);
+
+ /* enable IDE/ATA */
+ pci_write_config_dword(bdf, PCI_CFG_PIIX4_IDETIM_PRI,
+ PCI_CFG_PIIX4_IDETIM_IDE);
+ pci_write_config_dword(bdf, PCI_CFG_PIIX4_IDETIM_SEC,
+ PCI_CFG_PIIX4_IDETIM_IDE);
}
diff --git a/include/configs/malta.h b/include/configs/malta.h
index 684d249..354672e 100644
--- a/include/configs/malta.h
+++ b/include/configs/malta.h
@@ -71,6 +71,7 @@
sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_SYS_HUSH_PARSER
#define CONFIG_AUTO_COMPLETE
#define CONFIG_CMDLINE_EDITING
@@ -107,6 +108,16 @@
(CONFIG_SYS_FLASH_BASE + (4 << 20) - CONFIG_ENV_SIZE)
/*
+ * IDE/ATA
+ */
+#define CONFIG_SYS_IDE_MAXBUS 1
+#define CONFIG_SYS_IDE_MAXDEVICE 2
+#define CONFIG_SYS_ATA_BASE_ADDR CONFIG_SYS_ISA_IO_BASE_ADDRESS
+#define CONFIG_SYS_ATA_IDE0_OFFSET 0x01f0
+#define CONFIG_SYS_ATA_DATA_OFFSET 0
+#define CONFIG_SYS_ATA_REG_OFFSET 0
+
+/*
* Commands
*/
#include <config_cmd_default.h>
@@ -118,6 +129,8 @@
#define CONFIG_CMD_DATE
#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_IDE
#define CONFIG_CMD_PCI
#define CONFIG_CMD_PING