From 0eb25b619699270a8af95c2f76791fd6c4b52972 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Sun, 22 Mar 2015 17:08:59 -0500 Subject: common: Make sure arch-specific map_sysmem() is defined In the case where the arch defines a custom map_sysmem(), make sure that including just mapmem.h is sufficient to have these functions as they are when the arch does not override it. Also split the non-arch specific functions out of common.h Signed-off-by: Joe Hershberger Reviewed-by: Simon Glass --- arch/arm/lib/bootm.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/lib') diff --git a/arch/arm/lib/bootm.c b/arch/arm/lib/bootm.c index 2d6b676..b1bff8c 100644 --- a/arch/arm/lib/bootm.c +++ b/arch/arm/lib/bootm.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include -- cgit v1.1 From d2eaec600617346a143a07bb073466add7a68e97 Mon Sep 17 00:00:00 2001 From: Joe Hershberger Date: Sun, 22 Mar 2015 17:09:06 -0500 Subject: net: Remove the bd* parameter from net stack functions This value is not used by the network stack and is available in the global data, so stop passing it around. For the one legacy function that still expects it (init op on old Ethernet drivers) pass in the global pointer version directly to avoid changing that interface. Signed-off-by: Joe Hershberger Reported-by: Simon Glass Reviewed-by: Simon Glass Signed-off-by: Simon Glass (Trival fix to remove an unneeded variable declaration in 4xx_enet.c) --- arch/arm/lib/board.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/lib') diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index f606255..37ea6e9 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -644,7 +644,7 @@ void board_init_r(gd_t *id, ulong dest_addr) #endif #if defined(CONFIG_CMD_NET) puts("Net: "); - eth_initialize(gd->bd); + eth_initialize(); #if defined(CONFIG_RESET_PHY_R) debug("Reset Ethernet PHY\n"); reset_phy(); -- cgit v1.1 From 12d8a729137ec58107236c472ddb14a819e7bd0b Mon Sep 17 00:00:00 2001 From: "rev13@wp.pl" Date: Sun, 1 Mar 2015 12:44:39 +0100 Subject: ARM: Add ARMv7-M support Signed-off-by: Kamil Lulko --- arch/arm/lib/Makefile | 8 +++- arch/arm/lib/crt0.S | 30 ++++++++++++++ arch/arm/lib/interrupts_m.c | 95 +++++++++++++++++++++++++++++++++++++++++++++ arch/arm/lib/relocate.S | 13 +++++++ arch/arm/lib/vectors_m.S | 57 +++++++++++++++++++++++++++ 5 files changed, 201 insertions(+), 2 deletions(-) create mode 100644 arch/arm/lib/interrupts_m.c create mode 100644 arch/arm/lib/vectors_m.S (limited to 'arch/arm/lib') diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile index da8ed72..0e1ad0e 100644 --- a/arch/arm/lib/Makefile +++ b/arch/arm/lib/Makefile @@ -8,7 +8,9 @@ lib-$(CONFIG_USE_PRIVATE_LIBGCC) += _ashldi3.o _ashrdi3.o _divsi3.o \ _lshrdi3.o _modsi3.o _udivsi3.o _umodsi3.o div0.o -ifdef CONFIG_ARM64 +ifdef CONFIG_CPU_V7M +obj-y += vectors_m.o crt0.o +else ifdef CONFIG_ARM64 obj-y += crt0_64.o else obj-y += vectors.o crt0.o @@ -36,7 +38,9 @@ obj-$(CONFIG_SEMIHOSTING) += semihosting.o obj-y += sections.o obj-y += stack.o -ifdef CONFIG_ARM64 +ifdef CONFIG_CPU_V7M +obj-y += interrupts_m.o +else ifdef CONFIG_ARM64 obj-y += gic_64.o obj-y += interrupts_64.o else diff --git a/arch/arm/lib/crt0.S b/arch/arm/lib/crt0.S index 92d3732..afd4f10 100644 --- a/arch/arm/lib/crt0.S +++ b/arch/arm/lib/crt0.S @@ -9,6 +9,9 @@ #include #include #include +#ifdef CONFIG_CPU_V7M +#include +#endif /* * This file handles the target-independent stages of the U-Boot @@ -66,15 +69,30 @@ ENTRY(_main) #else ldr sp, =(CONFIG_SYS_INIT_SP_ADDR) #endif +#if defined(CONFIG_CPU_V7M) /* v7M forbids using SP as BIC destination */ + mov r3, sp + bic r3, r3, #7 + mov sp, r3 +#else bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ +#endif mov r2, sp sub sp, sp, #GD_SIZE /* allocate one GD above SP */ +#if defined(CONFIG_CPU_V7M) /* v7M forbids using SP as BIC destination */ + mov r3, sp + bic r3, r3, #7 + mov sp, r3 +#else bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ +#endif mov r9, sp /* GD is above SP */ mov r1, sp mov r0, #0 clr_gd: cmp r1, r2 /* while not at end of GD */ +#if defined(CONFIG_CPU_V7M) + itt lo +#endif strlo r0, [r1] /* clear 32-bit GD word */ addlo r1, r1, #4 /* move to next */ blo clr_gd @@ -94,13 +112,22 @@ clr_gd: */ ldr sp, [r9, #GD_START_ADDR_SP] /* sp = gd->start_addr_sp */ +#if defined(CONFIG_CPU_V7M) /* v7M forbids using SP as BIC destination */ + mov r3, sp + bic r3, r3, #7 + mov sp, r3 +#else bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ +#endif ldr r9, [r9, #GD_BD] /* r9 = gd->bd */ sub r9, r9, #GD_SIZE /* new GD is below bd */ adr lr, here ldr r0, [r9, #GD_RELOC_OFF] /* r0 = gd->reloc_off */ add lr, lr, r0 +#if defined(CONFIG_CPU_V7M) + orr lr, #1 /* As required by Thumb-only */ +#endif ldr r0, [r9, #GD_RELOCADDR] /* r0 = gd->relocaddr */ b relocate_code here: @@ -134,6 +161,9 @@ here: mov r2, #0x00000000 /* prepare zero to clear BSS */ clbss_l:cmp r0, r1 /* while not at end of BSS */ +#if defined(CONFIG_CPU_V7M) + itt lo +#endif strlo r2, [r0] /* clear 32-bit BSS word */ addlo r0, r0, #4 /* move to next */ blo clbss_l diff --git a/arch/arm/lib/interrupts_m.c b/arch/arm/lib/interrupts_m.c new file mode 100644 index 0000000..89ce493 --- /dev/null +++ b/arch/arm/lib/interrupts_m.c @@ -0,0 +1,95 @@ +/* + * (C) Copyright 2015 + * Kamil Lulko, + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include + +/* + * Upon exception entry ARMv7-M processors automatically save stack + * frames containing some registers. For simplicity initial + * implementation uses only this auto-saved stack frame. + * This does not contain complete register set dump, + * only R0-R3, R12, LR, PC and xPSR are saved. + */ + +struct autosave_regs { + long uregs[8]; +}; + +#define ARM_XPSR uregs[7] +#define ARM_PC uregs[6] +#define ARM_LR uregs[5] +#define ARM_R12 uregs[4] +#define ARM_R3 uregs[3] +#define ARM_R2 uregs[2] +#define ARM_R1 uregs[1] +#define ARM_R0 uregs[0] + +int interrupt_init(void) +{ + return 0; +} + +void enable_interrupts(void) +{ + return; +} + +int disable_interrupts(void) +{ + return 0; +} + +void dump_regs(struct autosave_regs *regs) +{ + printf("pc : %08lx lr : %08lx xPSR : %08lx\n", + regs->ARM_PC, regs->ARM_LR, regs->ARM_XPSR); + printf("r12 : %08lx r3 : %08lx r2 : %08lx\n" + "r1 : %08lx r0 : %08lx\n", + regs->ARM_R12, regs->ARM_R3, regs->ARM_R2, + regs->ARM_R1, regs->ARM_R0); +} + +void bad_mode(void) +{ + panic("Resetting CPU ...\n"); + reset_cpu(0); +} + +void do_hard_fault(struct autosave_regs *autosave_regs) +{ + printf("Hard fault\n"); + dump_regs(autosave_regs); + bad_mode(); +} + +void do_mm_fault(struct autosave_regs *autosave_regs) +{ + printf("Memory management fault\n"); + dump_regs(autosave_regs); + bad_mode(); +} + +void do_bus_fault(struct autosave_regs *autosave_regs) +{ + printf("Bus fault\n"); + dump_regs(autosave_regs); + bad_mode(); +} + +void do_usage_fault(struct autosave_regs *autosave_regs) +{ + printf("Usage fault\n"); + dump_regs(autosave_regs); + bad_mode(); +} + +void do_invalid_entry(struct autosave_regs *autosave_regs) +{ + printf("Exception\n"); + dump_regs(autosave_regs); + bad_mode(); +} diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S index 92f5314..475d503 100644 --- a/arch/arm/lib/relocate.S +++ b/arch/arm/lib/relocate.S @@ -9,6 +9,9 @@ #include #include #include +#ifdef CONFIG_CPU_V7M +#include +#endif /* * Default/weak exception vectors relocation routine @@ -23,6 +26,15 @@ ENTRY(relocate_vectors) +#ifdef CONFIG_CPU_V7M + /* + * On ARMv7-M we only have to write the new vector address + * to VTOR register. + */ + ldr r0, [r9, #GD_RELOCADDR] /* r0 = gd->relocaddr */ + ldr r1, =V7M_SCB_BASE + str r0, [r1, V7M_SCB_VTOR] +#else #ifdef CONFIG_HAS_VBAR /* * If the ARM processor has the security extensions, @@ -47,6 +59,7 @@ ENTRY(relocate_vectors) ldmia r0!, {r2-r8,r10} stmia r1!, {r2-r8,r10} #endif +#endif bx lr ENDPROC(relocate_vectors) diff --git a/arch/arm/lib/vectors_m.S b/arch/arm/lib/vectors_m.S new file mode 100644 index 0000000..abc7f88 --- /dev/null +++ b/arch/arm/lib/vectors_m.S @@ -0,0 +1,57 @@ +/* + * (C) Copyright 2015 + * Kamil Lulko, + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include +#include +#include + +.type __hard_fault_entry, %function +__hard_fault_entry: + mov r0, sp @ pass auto-saved registers as argument + b do_hard_fault + +.type __mm_fault_entry, %function +__mm_fault_entry: + mov r0, sp @ pass auto-saved registers as argument + b do_mm_fault + +.type __bus_fault_entry, %function +__bus_fault_entry: + mov r0, sp @ pass auto-saved registers as argument + b do_bus_fault + +.type __usage_fault_entry, %function +__usage_fault_entry: + mov r0, sp @ pass auto-saved registers as argument + b do_usage_fault + +.type __invalid_entry, %function +__invalid_entry: + mov r0, sp @ pass auto-saved registers as argument + b do_invalid_entry + + .section .vectors +ENTRY(_start) + .long CONFIG_SYS_INIT_SP_ADDR @ 0 - Reset stack pointer + .long reset @ 1 - Reset + .long __invalid_entry @ 2 - NMI + .long __hard_fault_entry @ 3 - HardFault + .long __mm_fault_entry @ 4 - MemManage + .long __bus_fault_entry @ 5 - BusFault + .long __usage_fault_entry @ 6 - UsageFault + .long __invalid_entry @ 7 - Reserved + .long __invalid_entry @ 8 - Reserved + .long __invalid_entry @ 9 - Reserved + .long __invalid_entry @ 10 - Reserved + .long __invalid_entry @ 11 - SVCall + .long __invalid_entry @ 12 - Debug Monitor + .long __invalid_entry @ 13 - Reserved + .long __invalid_entry @ 14 - PendSV + .long __invalid_entry @ 15 - SysTick + .rept 255 - 16 + .long __invalid_entry @ 16..255 - External Interrupts + .endr -- cgit v1.1 From b2d5ac59859fa946e47fb6ab1f4f3486d4988680 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Tue, 24 Mar 2015 13:25:02 -0700 Subject: armv8/ls2085aqds: NAND boot support This adds NAND boot support for LS2085AQDS, using SPL framework. Details of forming NAND image can be found in README. Signed-off-by: Scott Wood [York Sun: Remove +S from defconfig after commit 252ed872] Signed-off-by: York Sun --- arch/arm/lib/crt0_64.S | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/lib') diff --git a/arch/arm/lib/crt0_64.S b/arch/arm/lib/crt0_64.S index 1654011..bc9c53c 100644 --- a/arch/arm/lib/crt0_64.S +++ b/arch/arm/lib/crt0_64.S @@ -61,7 +61,11 @@ ENTRY(_main) /* * Set up initial C runtime environment and call board_init_f(0). */ +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_STACK) + ldr x0, =(CONFIG_SPL_STACK) +#else ldr x0, =(CONFIG_SYS_INIT_SP_ADDR) +#endif sub x18, x0, #GD_SIZE /* allocate one GD above SP */ bic x18, x18, #0x7 /* 8-byte alignment for GD */ zero_gd: @@ -77,6 +81,7 @@ zero_gd: mov x0, #0 bl board_init_f +#if !defined(CONFIG_SPL_BUILD) /* * Set up intermediate environment (new sp and gd) and call * relocate_code(addr_moni). Trick here is that we'll return @@ -119,4 +124,6 @@ clear_loop: /* NOTREACHED - board_init_r() does not return */ +#endif /* !CONFIG_SPL_BUILD */ + ENDPROC(_main) -- cgit v1.1