diff options
Diffstat (limited to 'arch')
36 files changed, 867 insertions, 645 deletions
diff --git a/arch/x86/config.mk b/arch/x86/config.mk index fe9083f6268..23cacffdede 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -41,3 +41,10 @@ PLATFORM_RELFLAGS += -ffunction-sections -fvisibility=hidden PLATFORM_LDFLAGS += --emit-relocs -Bsymbolic -Bsymbolic-functions LDFLAGS_FINAL += --gc-sections -pie +LDFLAGS_FINAL += --wrap=__divdi3 --wrap=__udivdi3 +LDFLAGS_FINAL += --wrap=__moddi3 --wrap=__umoddi3 + +NORMAL_LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name) +PREFIXED_LIBGCC = $(OBJTREE)/arch/$(ARCH)/lib/$(shell basename $(NORMAL_LIBGCC)) + +export USE_PRIVATE_LIBGCC=$(shell dirname $(PREFIXED_LIBGCC)) diff --git a/arch/x86/cpu/cpu.c b/arch/x86/cpu/cpu.c index cac12c088c5..61d0b69416e 100644 --- a/arch/x86/cpu/cpu.c +++ b/arch/x86/cpu/cpu.c @@ -37,6 +37,7 @@ #include <asm/processor.h> #include <asm/processor-flags.h> #include <asm/interrupt.h> +#include <linux/compiler.h> /* * Constructor for a conventional segment GDT (or LDT) entry @@ -52,7 +53,7 @@ struct gdt_ptr { u16 len; u32 ptr; -} __attribute__((packed)); +} __packed; static void reload_gdt(void) { @@ -115,14 +116,14 @@ int x86_cpu_init_r(void) reload_gdt(); /* Initialize core interrupt and exception functionality of CPU */ - cpu_init_interrupts (); + cpu_init_interrupts(); return 0; } int cpu_init_r(void) __attribute__((weak, alias("x86_cpu_init_r"))); int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { - printf ("resetting ...\n"); + printf("resetting ...\n"); /* wait 50 ms */ udelay(50000); @@ -133,7 +134,7 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; } -void flush_cache (unsigned long dummy1, unsigned long dummy2) +void flush_cache(unsigned long dummy1, unsigned long dummy2) { asm("wbinvd\n"); } @@ -142,16 +143,16 @@ void __attribute__ ((regparm(0))) generate_gpf(void); /* segment 0x70 is an arbitrary segment which does not exist */ asm(".globl generate_gpf\n" - ".hidden generate_gpf\n" - ".type generate_gpf, @function\n" - "generate_gpf:\n" - "ljmp $0x70, $0x47114711\n"); + ".hidden generate_gpf\n" + ".type generate_gpf, @function\n" + "generate_gpf:\n" + "ljmp $0x70, $0x47114711\n"); void __reset_cpu(ulong addr) { printf("Resetting using x86 Triple Fault\n"); - set_vector(13, generate_gpf); /* general protection fault handler */ - set_vector(8, generate_gpf); /* double fault handler */ - generate_gpf(); /* start the show */ + set_vector(13, generate_gpf); /* general protection fault handler */ + set_vector(8, generate_gpf); /* double fault handler */ + generate_gpf(); /* start the show */ } void reset_cpu(ulong addr) __attribute__((weak, alias("__reset_cpu"))); diff --git a/arch/x86/cpu/interrupts.c b/arch/x86/cpu/interrupts.c index c6e72eaa630..e0958eb67f4 100644 --- a/arch/x86/cpu/interrupts.c +++ b/arch/x86/cpu/interrupts.c @@ -31,6 +31,7 @@ #include <asm/interrupt.h> #include <asm/io.h> #include <asm/processor-flags.h> +#include <linux/compiler.h> #define DECLARE_INTERRUPT(x) \ ".globl irq_"#x"\n" \ @@ -83,22 +84,22 @@ static inline unsigned long get_debugreg(int regno) switch (regno) { case 0: - asm("mov %%db0, %0" :"=r" (val)); + asm("mov %%db0, %0" : "=r" (val)); break; case 1: - asm("mov %%db1, %0" :"=r" (val)); + asm("mov %%db1, %0" : "=r" (val)); break; case 2: - asm("mov %%db2, %0" :"=r" (val)); + asm("mov %%db2, %0" : "=r" (val)); break; case 3: - asm("mov %%db3, %0" :"=r" (val)); + asm("mov %%db3, %0" : "=r" (val)); break; case 6: - asm("mov %%db6, %0" :"=r" (val)); + asm("mov %%db6, %0" : "=r" (val)); break; case 7: - asm("mov %%db7, %0" :"=r" (val)); + asm("mov %%db7, %0" : "=r" (val)); break; default: val = 0; @@ -120,7 +121,8 @@ void dump_regs(struct irq_regs *regs) printf("ESI: %08lx EDI: %08lx EBP: %08lx ESP: %08lx\n", regs->esi, regs->edi, regs->ebp, regs->esp); printf(" DS: %04x ES: %04x FS: %04x GS: %04x SS: %04x\n", - (u16)regs->xds, (u16)regs->xes, (u16)regs->xfs, (u16)regs->xgs, (u16)regs->xss); + (u16)regs->xds, (u16)regs->xes, (u16)regs->xfs, + (u16)regs->xgs, (u16)regs->xss); cr0 = read_cr0(); cr2 = read_cr2(); @@ -164,21 +166,21 @@ struct idt_entry { u8 res; u8 access; u16 base_high; -} __attribute__ ((packed)); +} __packed; struct desc_ptr { unsigned short size; unsigned long address; unsigned short segment; -} __attribute__((packed)); +} __packed; -struct idt_entry idt[256]; +struct idt_entry idt[256] __attribute__((aligned(16))); struct desc_ptr idt_ptr; static inline void load_idt(const struct desc_ptr *dtr) { - asm volatile("cs lidt %0"::"m" (*dtr)); + asm volatile("cs lidt %0" : : "m" (*dtr)); } void set_vector(u8 intnum, void *routine) @@ -187,6 +189,11 @@ void set_vector(u8 intnum, void *routine) idt[intnum].base_low = (u16)((u32)(routine) & 0xffff); } +/* + * Ideally these would be defined static to avoid a checkpatch warning, but + * the compiler cannot see them in the inline asm and complains that they + * aren't defined + */ void irq_0(void); void irq_1(void); @@ -201,7 +208,7 @@ int cpu_init_interrupts(void) disable_interrupts(); /* Setup the IDT */ - for (i=0;i<256;i++) { + for (i = 0; i < 256; i++) { idt[i].access = 0x8e; idt[i].res = 0; idt[i].selector = 0x10; @@ -238,7 +245,7 @@ int disable_interrupts(void) asm volatile ("pushfl ; popl %0 ; cli\n" : "=g" (flags) : ); - return flags & X86_EFLAGS_IF; /* IE flags is bit 9 */ + return flags & X86_EFLAGS_IF; } /* IRQ Low-Level Service Routine */ @@ -255,7 +262,7 @@ void irq_llsr(struct irq_regs *regs) case 0x00: printf("Divide Error (Division by zero)\n"); dump_regs(regs); - while(1); + hang(); break; case 0x01: printf("Debug Interrupt (Single step)\n"); @@ -272,32 +279,32 @@ void irq_llsr(struct irq_regs *regs) case 0x04: printf("Overflow\n"); dump_regs(regs); - while(1); + hang(); break; case 0x05: printf("BOUND Range Exceeded\n"); dump_regs(regs); - while(1); + hang(); break; case 0x06: printf("Invalid Opcode (UnDefined Opcode)\n"); dump_regs(regs); - while(1); + hang(); break; case 0x07: printf("Device Not Available (No Math Coprocessor)\n"); dump_regs(regs); - while(1); + hang(); break; case 0x08: printf("Double fault\n"); dump_regs(regs); - while(1); + hang(); break; case 0x09: printf("Co-processor segment overrun\n"); dump_regs(regs); - while(1); + hang(); break; case 0x0a: printf("Invalid TSS\n"); @@ -306,12 +313,12 @@ void irq_llsr(struct irq_regs *regs) case 0x0b: printf("Segment Not Present\n"); dump_regs(regs); - while(1); + hang(); break; case 0x0c: printf("Stack Segment Fault\n"); dump_regs(regs); - while(1); + hang(); break; case 0x0d: printf("General Protection\n"); @@ -320,7 +327,7 @@ void irq_llsr(struct irq_regs *regs) case 0x0e: printf("Page fault\n"); dump_regs(regs); - while(1); + hang(); break; case 0x0f: printf("Floating-Point Error (Math Fault)\n"); diff --git a/arch/x86/cpu/sc520/asm-offsets.c b/arch/x86/cpu/sc520/asm-offsets.c new file mode 100644 index 00000000000..794f00cdb90 --- /dev/null +++ b/arch/x86/cpu/sc520/asm-offsets.c @@ -0,0 +1,45 @@ +/* + * Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c + * + * This program is used to generate definitions needed by + * assembly language modules. + * + * We use the technique used in the OSF Mach kernel code: + * generate asm statements containing #defines, + * compile this file to assembler, and then extract the + * #defines from the assembly-language output. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <common.h> +#include <asm/arch/sc520.h> + +#include <linux/kbuild.h> + +int main(void) +{ + DEFINE(GENERATED_GD_RELOC_OFF, offsetof(gd_t, reloc_off)); + + DEFINE(GENERATED_SC520_PAR0, offsetof(struct sc520_mmcr, par[0])); + DEFINE(GENERATED_SC520_PAR1, offsetof(struct sc520_mmcr, par[1])); + DEFINE(GENERATED_SC520_PAR2, offsetof(struct sc520_mmcr, par[2])); + DEFINE(GENERATED_SC520_PAR3, offsetof(struct sc520_mmcr, par[3])); + DEFINE(GENERATED_SC520_PAR4, offsetof(struct sc520_mmcr, par[4])); + DEFINE(GENERATED_SC520_PAR5, offsetof(struct sc520_mmcr, par[5])); + DEFINE(GENERATED_SC520_PAR6, offsetof(struct sc520_mmcr, par[6])); + DEFINE(GENERATED_SC520_PAR7, offsetof(struct sc520_mmcr, par[7])); + DEFINE(GENERATED_SC520_PAR8, offsetof(struct sc520_mmcr, par[8])); + DEFINE(GENERATED_SC520_PAR9, offsetof(struct sc520_mmcr, par[9])); + DEFINE(GENERATED_SC520_PAR10, offsetof(struct sc520_mmcr, par[10])); + DEFINE(GENERATED_SC520_PAR11, offsetof(struct sc520_mmcr, par[11])); + DEFINE(GENERATED_SC520_PAR12, offsetof(struct sc520_mmcr, par[12])); + DEFINE(GENERATED_SC520_PAR13, offsetof(struct sc520_mmcr, par[13])); + DEFINE(GENERATED_SC520_PAR14, offsetof(struct sc520_mmcr, par[14])); + DEFINE(GENERATED_SC520_PAR15, offsetof(struct sc520_mmcr, par[15])); + + return 0; +} diff --git a/arch/x86/cpu/sc520/sc520.c b/arch/x86/cpu/sc520/sc520.c index 4892c0153f9..3fe85e76487 100644 --- a/arch/x86/cpu/sc520/sc520.c +++ b/arch/x86/cpu/sc520/sc520.c @@ -49,7 +49,7 @@ int cpu_init_f(void) asm("movl $0x2000, %%ecx\n" "0: pushl %%ecx\n" "popl %%ecx\n" - "loop 0b\n": : : "ecx"); + "loop 0b\n" : : : "ecx"); return x86_cpu_init_f(); } diff --git a/arch/x86/cpu/sc520/sc520_car.S b/arch/x86/cpu/sc520/sc520_car.S index 7cac4d1def9..c04cc1f1167 100644 --- a/arch/x86/cpu/sc520/sc520_car.S +++ b/arch/x86/cpu/sc520/sc520_car.S @@ -24,6 +24,7 @@ #include <config.h> #include <asm/processor-flags.h> #include <asm/arch/sc520.h> +#include <generated/asm-offsets.h> .section .text @@ -55,7 +56,7 @@ car_init: /* Configure Cache-As-RAM PAR */ movl $CONFIG_SYS_SC520_CAR_PAR, %eax - movl $SC520_PAR2, %edi + movl $(SC520_MMCR_BASE + GENERATED_SC520_PAR2), %edi movl %eax, (%edi) /* Trash the cache then turn it on */ diff --git a/arch/x86/cpu/sc520/sc520_pci.c b/arch/x86/cpu/sc520/sc520_pci.c index e26793ab1bd..52d07c119a8 100644 --- a/arch/x86/cpu/sc520/sc520_pci.c +++ b/arch/x86/cpu/sc520/sc520_pci.c @@ -70,26 +70,28 @@ int pci_sc520_set_irq(int pci_pin, int irq) debug("set_irq(): map INT%c to IRQ%d\n", pci_pin + 'A', irq); - if (irq < 0 || irq > 15) { + if (irq < 0 || irq > 15) return -1; /* illegal irq */ - } - if (pci_pin < 0 || pci_pin > 15) { + if (pci_pin < 0 || pci_pin > 15) return -1; /* illegal pci int pin */ - } /* first disable any non-pci interrupt source that use * this level */ /* PCI interrupt mapping (A through D)*/ - for (i=0; i<=3 ;i++) { - if (readb(&sc520_mmcr->pci_int_map[i]) == sc520_irq[irq].priority) + for (i = 0; i <= 3 ; i++) { + tmpb = readb(&sc520_mmcr->pci_int_map[i]); + + if (tmpb == sc520_irq[irq].priority) writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pci_int_map[i]); } /* GP IRQ interrupt mapping */ - for (i=0; i<=10 ;i++) { - if (readb(&sc520_mmcr->gp_int_map[i]) == sc520_irq[irq].priority) + for (i = 0; i <= 10 ; i++) { + tmpb = readb(&sc520_mmcr->gp_int_map[i]); + + if (tmpb == sc520_irq[irq].priority) writeb(SC520_IRQ_DISABLED, &sc520_mmcr->gp_int_map[i]); } @@ -102,10 +104,12 @@ int pci_sc520_set_irq(int pci_pin, int irq) if (pci_pin < 4) { /* PCI INTA-INTD */ /* route the interrupt */ - writeb(sc520_irq[irq].priority, &sc520_mmcr->pci_int_map[pci_pin]); + writeb(sc520_irq[irq].priority, + &sc520_mmcr->pci_int_map[pci_pin]); } else { /* GPIRQ0-GPIRQ10 used for additional PCI INTS */ - writeb(sc520_irq[irq].priority, &sc520_mmcr->gp_int_map[pci_pin - 4]); + writeb(sc520_irq[irq].priority, + &sc520_mmcr->gp_int_map[pci_pin - 4]); /* also set the polarity in this case */ tmpw = readw(&sc520_mmcr->intpinpol); @@ -126,9 +130,7 @@ void pci_sc520_init(struct pci_controller *hose) hose->last_busno = 0xff; hose->region_count = pci_set_regions(hose); - pci_setup_type1(hose, - SC520_REG_ADDR, - SC520_REG_DATA); + pci_setup_type1(hose); pci_register_hose(hose); diff --git a/arch/x86/cpu/sc520/sc520_sdram.c b/arch/x86/cpu/sc520/sc520_sdram.c index 57e4e7ddc34..9dc13342e37 100644 --- a/arch/x86/cpu/sc520/sc520_sdram.c +++ b/arch/x86/cpu/sc520/sc520_sdram.c @@ -40,9 +40,6 @@ static void sc520_set_dram_timing(void); static void sc520_set_dram_refresh_rate(void); static void sc520_enable_dram_refresh(void); static void sc520_enable_sdram(void); -#if CONFIG_SYS_SDRAM_ECC_ENABLE -static void sc520_enable_ecc(void) -#endif int dram_init_f(void) { @@ -51,9 +48,6 @@ int dram_init_f(void) sc520_set_dram_refresh_rate(); sc520_enable_dram_refresh(); sc520_enable_sdram(); -#if CONFIG_SYS_SDRAM_ECC_ENABLE - sc520_enable_ecc(); -#endif return 0; } @@ -426,53 +420,6 @@ static void sc520_sizemem(void) writel(0x00000000, &sc520_mmcr->par[4]); } -#if CONFIG_SYS_SDRAM_ECC_ENABLE -static void sc520_enable_ecc(void) - - /* A nominal memory test: just a byte at each address line */ - movl %eax, %ecx - shrl $0x1, %ecx - movl $0x1, %edi -memtest0: - movb $0xa5, (%edi) - cmpb $0xa5, (%edi) - jne out - shrl $0x1, %ecx - andl %ecx, %ecx - jz set_ecc - shll $0x1, %edi - jmp memtest0 - -set_ecc: - /* clear all ram with a memset */ - movl %eax, %ecx - xorl %esi, %esi - xorl %edi, %edi - xorl %eax, %eax - shrl $0x2, %ecx - cld - rep stosl - - /* enable read, write buffers */ - movb $0x11, %al - movl $DBCTL, %edi - movb %al, (%edi) - - /* enable NMI mapping for ECC */ - movl $ECCINT, %edi - movb $0x10, %al - movb %al, (%edi) - - /* Turn on ECC */ - movl $ECCCTL, %edi - movb $0x05, %al - movb %al,(%edi) - -out: - jmp init_ecc_ret -} -#endif - int dram_init(void) { ulong dram_ctrl; diff --git a/arch/x86/cpu/sc520/sc520_ssi.c b/arch/x86/cpu/sc520/sc520_ssi.c index 3a6a8580912..cc601e56e48 100644 --- a/arch/x86/cpu/sc520/sc520_ssi.c +++ b/arch/x86/cpu/sc520/sc520_ssi.c @@ -28,37 +28,33 @@ int ssi_set_interface(int freq, int lsb_first, int inv_clock, int inv_phase) { - u8 temp=0; + u8 temp = 0; - if (freq >= 8192) { + if (freq >= 8192) temp |= CTL_CLK_SEL_4; - } else if (freq >= 4096) { + else if (freq >= 4096) temp |= CTL_CLK_SEL_8; - } else if (freq >= 2048) { + else if (freq >= 2048) temp |= CTL_CLK_SEL_16; - } else if (freq >= 1024) { + else if (freq >= 1024) temp |= CTL_CLK_SEL_32; - } else if (freq >= 512) { + else if (freq >= 512) temp |= CTL_CLK_SEL_64; - } else if (freq >= 256) { + else if (freq >= 256) temp |= CTL_CLK_SEL_128; - } else if (freq >= 128) { + else if (freq >= 128) temp |= CTL_CLK_SEL_256; - } else { + else temp |= CTL_CLK_SEL_512; - } - if (!lsb_first) { + if (!lsb_first) temp |= MSBF_ENB; - } - if (inv_clock) { + if (inv_clock) temp |= CLK_INV_ENB; - } - if (inv_phase) { + if (inv_phase) temp |= PHS_INV_ENB; - } writeb(temp, &sc520_mmcr->ssictl); @@ -68,9 +64,11 @@ int ssi_set_interface(int freq, int lsb_first, int inv_clock, int inv_phase) u8 ssi_txrx_byte(u8 data) { writeb(data, &sc520_mmcr->ssixmit); - while (readb(&sc520_mmcr->ssista) & SSISTA_BSY); + while (readb(&sc520_mmcr->ssista) & SSISTA_BSY) + ; writeb(SSICMD_CMD_SEL_XMITRCV, &sc520_mmcr->ssicmd); - while (readb(&sc520_mmcr->ssista) & SSISTA_BSY); + while (readb(&sc520_mmcr->ssista) & SSISTA_BSY) + ; return readb(&sc520_mmcr->ssircv); } @@ -78,15 +76,18 @@ u8 ssi_txrx_byte(u8 data) void ssi_tx_byte(u8 data) { writeb(data, &sc520_mmcr->ssixmit); - while (readb(&sc520_mmcr->ssista) & SSISTA_BSY); + while (readb(&sc520_mmcr->ssista) & SSISTA_BSY) + ; writeb(SSICMD_CMD_SEL_XMIT, &sc520_mmcr->ssicmd); } u8 ssi_rx_byte(void) { - while (readb(&sc520_mmcr->ssista) & SSISTA_BSY); + while (readb(&sc520_mmcr->ssista) & SSISTA_BSY) + ; writeb(SSICMD_CMD_SEL_RCV, &sc520_mmcr->ssicmd); - while (readb(&sc520_mmcr->ssista) & SSISTA_BSY); + while (readb(&sc520_mmcr->ssista) & SSISTA_BSY) + ; return readb(&sc520_mmcr->ssircv); } diff --git a/arch/x86/cpu/sc520/sc520_timer.c b/arch/x86/cpu/sc520/sc520_timer.c index 05bc9c1103c..495a69459b8 100644 --- a/arch/x86/cpu/sc520/sc520_timer.c +++ b/arch/x86/cpu/sc520/sc520_timer.c @@ -38,7 +38,7 @@ void sc520_timer_isr(void) int timer_init(void) { /* Register the SC520 specific timer interrupt handler */ - register_timer_isr (sc520_timer_isr); + register_timer_isr(sc520_timer_isr); /* Install interrupt handler for GP Timer 1 */ irq_install_handler (0, timer_isr, NULL); @@ -62,7 +62,7 @@ int timer_init(void) writew(100, &sc520_mmcr->gptmr1maxcmpa); writew(0xe009, &sc520_mmcr->gptmr1ctl); - unmask_irq (0); + unmask_irq(0); /* Clear the GP Timer 1 status register to get the show rolling*/ writeb(0x02, &sc520_mmcr->gptmrsta); diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S index 306fb496170..f87633b5612 100644 --- a/arch/x86/cpu/start.S +++ b/arch/x86/cpu/start.S @@ -30,6 +30,7 @@ #include <version.h> #include <asm/global_data.h> #include <asm/processor-flags.h> +#include <generated/asm-offsets.h> .section .text .code32 @@ -47,14 +48,12 @@ _x86boot_start: cli cld - /* Turn of cache (this might require a 486-class CPU) */ + /* Turn off cache (this might require a 486-class CPU) */ movl %cr0, %eax orl $(X86_CR0_NW | X86_CR0_CD), %eax movl %eax, %cr0 wbinvd - /* Tell 32-bit code it is being entered from an in-RAM copy */ - movw $GD_FLG_WARM_BOOT, %bx _start: /* This is the 32-bit cold-reset entry point */ @@ -114,7 +113,7 @@ relocate_code: /* Setup call address of in-RAM copy of board_init_r() */ movl $board_init_r, %ebp - addl (GD_RELOC_OFF * 4)(%edx), %ebp + addl (GENERATED_GD_RELOC_OFF)(%edx), %ebp /* Setup parameters to board_init_r() */ movl %edx, %eax @@ -123,10 +122,31 @@ relocate_code: /* Jump to in-RAM copy of board_init_r() */ call *%ebp -die: hlt +die: + hlt jmp die hlt blank_idt_ptr: .word 0 /* limit */ .long 0 /* base */ + + .p2align 2 /* force 4-byte alignment */ + +multiboot_header: + /* magic */ + .long 0x1BADB002 + /* flags */ + .long (1 << 16) + /* checksum */ + .long -0x1BADB002 - (1 << 16) + /* header addr */ + .long multiboot_header - _x86boot_start + CONFIG_SYS_TEXT_BASE + /* load addr */ + .long CONFIG_SYS_TEXT_BASE + /* load end addr */ + .long 0 + /* bss end addr */ + .long 0 + /* entry addr */ + .long CONFIG_SYS_TEXT_BASE diff --git a/arch/x86/cpu/start16.S b/arch/x86/cpu/start16.S index 9dabff2b9f3..33e53cdb3b6 100644 --- a/arch/x86/cpu/start16.S +++ b/arch/x86/cpu/start16.S @@ -37,9 +37,6 @@ .code16 .globl start16 start16: - /* Set the Cold Boot / Hard Reset flag */ - movl $GD_FLG_COLD_BOOT, %ebx - /* * First we let the BSP do some early initialization * this code have to map the flash to its final position diff --git a/arch/x86/include/asm/arch-sc520/sc520.h b/arch/x86/include/asm/arch-sc520/sc520.h index 5ac9bb81d41..9dc29d39bc3 100644 --- a/arch/x86/include/asm/arch-sc520/sc520.h +++ b/arch/x86/include/asm/arch-sc520/sc520.h @@ -259,32 +259,6 @@ extern sc520_mmcr_t *sc520_mmcr; /* Memory Mapped Control Registers (MMCR) Base Address */ #define SC520_MMCR_BASE 0xfffef000 -/* MMCR Addresses (required for assembler code) */ -#define SC520_DRCCTL (SC520_MMCR_BASE + 0x010) -#define SC520_DRCTMCTL (SC520_MMCR_BASE + 0x012) -#define SC520_DRCCFG (SC520_MMCR_BASE + 0x014) -#define SC520_DRCBENDADR (SC520_MMCR_BASE + 0x018) -#define SC520_ECCCTL (SC520_MMCR_BASE + 0x020) -#define SC520_DBCTL (SC520_MMCR_BASE + 0x040) -#define SC520_ECCINT (SC520_MMCR_BASE + 0xd18) - -#define SC520_PAR0 (SC520_MMCR_BASE + 0x088) -#define SC520_PAR1 (SC520_PAR0 + (0x04 * 1)) -#define SC520_PAR2 (SC520_PAR0 + (0x04 * 2)) -#define SC520_PAR3 (SC520_PAR0 + (0x04 * 3)) -#define SC520_PAR4 (SC520_PAR0 + (0x04 * 4)) -#define SC520_PAR5 (SC520_PAR0 + (0x04 * 5)) -#define SC520_PAR6 (SC520_PAR0 + (0x04 * 6)) -#define SC520_PAR7 (SC520_PAR0 + (0x04 * 7)) -#define SC520_PAR8 (SC520_PAR0 + (0x04 * 8)) -#define SC520_PAR9 (SC520_PAR0 + (0x04 * 9)) -#define SC520_PAR10 (SC520_PAR0 + (0x04 * 10)) -#define SC520_PAR11 (SC520_PAR0 + (0x04 * 11)) -#define SC520_PAR12 (SC520_PAR0 + (0x04 * 12)) -#define SC520_PAR13 (SC520_PAR0 + (0x04 * 13)) -#define SC520_PAR14 (SC520_PAR0 + (0x04 * 14)) -#define SC520_PAR15 (SC520_PAR0 + (0x04 * 15)) - /* * PARs for maximum allowable 256MB of SDRAM @ 0x00000000 * Two PARs are required due to maximum PAR size of 128MB diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h index f177a4fa3b6..05a2139d001 100644 --- a/arch/x86/include/asm/global_data.h +++ b/arch/x86/include/asm/global_data.h @@ -61,25 +61,6 @@ extern gd_t *gd; #endif -/* Word Offsets into Global Data - MUST match struct gd_t */ -#define GD_BD 0 -#define GD_FLAGS 1 -#define GD_BAUDRATE 2 -#define GD_HAVE_CONSOLE 3 -#define GD_RELOC_OFF 4 -#define GD_LOAD_OFF 5 -#define GD_ENV_ADDR 6 -#define GD_ENV_VALID 7 -#define GD_CPU_CLK 8 -#define GD_BUS_CLK 9 -#define GD_RELOC_ADDR 10 -#define GD_START_ADDR_SP 11 -#define GD_RAM_SIZE 12 -#define GD_RESET_STATUS 13 -#define GD_JT 14 - -#define GD_SIZE 15 - /* * Global Data Flags */ @@ -91,8 +72,6 @@ extern gd_t *gd; #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ #define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */ -#define GD_FLG_COLD_BOOT 0x00100 /* Cold Boot */ -#define GD_FLG_WARM_BOOT 0x00200 /* Warm Boot */ #if 0 #define DECLARE_GLOBAL_DATA_PTR diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h index 85f60d77f02..37cc7e3a0f8 100644 --- a/arch/x86/include/asm/pci.h +++ b/arch/x86/include/asm/pci.h @@ -26,7 +26,10 @@ #ifndef _PCI_I386_H_ #define _PCI_I386_H_ 1 -void pci_setup_type1(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data); +#define DEFINE_PCI_DEVICE_TABLE(_table) \ + const struct pci_device_id _table[] + +void pci_setup_type1(struct pci_controller *hose); int pci_enable_legacy_video_ports(struct pci_controller* hose); int pci_shadow_rom(pci_dev_t dev, unsigned char *dest); void pci_remove_rom_window(struct pci_controller* hose, u32 addr); diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h index c62310e3cd4..0f12a893b44 100644 --- a/arch/x86/include/asm/realmode.h +++ b/arch/x86/include/asm/realmode.h @@ -25,6 +25,10 @@ #define __ASM_REALMODE_H_ #include <asm/ptrace.h> +extern ulong __realmode_start; +extern ulong __realmode_size; +extern char realmode_enter; + int bios_setup(void); int enter_realmode(u16 seg, u16 off, struct pt_regs *in, struct pt_regs *out); int enter_realmode_int(u8 lvl, struct pt_regs *in, struct pt_regs *out); diff --git a/arch/x86/include/asm/string.h b/arch/x86/include/asm/string.h index 3643a79fdfc..3aa6c1131b2 100644 --- a/arch/x86/include/asm/string.h +++ b/arch/x86/include/asm/string.h @@ -23,7 +23,7 @@ extern void * memmove(void *, const void *, __kernel_size_t); #undef __HAVE_ARCH_MEMCHR extern void * memchr(const void *, int, __kernel_size_t); -#undef __HAVE_ARCH_MEMSET +#define __HAVE_ARCH_MEMSET extern void * memset(void *, int, __kernel_size_t); #undef __HAVE_ARCH_MEMZERO diff --git a/arch/x86/include/asm/u-boot-x86.h b/arch/x86/include/asm/u-boot-x86.h index d3e2f4c4928..755f88af048 100644 --- a/arch/x86/include/asm/u-boot-x86.h +++ b/arch/x86/include/asm/u-boot-x86.h @@ -24,6 +24,14 @@ #ifndef _U_BOOT_I386_H_ #define _U_BOOT_I386_H_ 1 +/* Exports from the Linker Script */ +extern ulong __text_start; +extern ulong __data_end; +extern ulong __rel_dyn_start; +extern ulong __rel_dyn_end; +extern ulong __bss_start; +extern ulong __bss_end; + /* cpu/.../cpu.c */ int x86_cpu_init_r(void); int cpu_init_r(void); diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 71e94f76f37..d584aa4a80f 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -25,23 +25,25 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(ARCH).o -SOBJS-y += bios.o -SOBJS-y += bios_pci.o -SOBJS-y += realmode_switch.o +SOBJS-$(CONFIG_SYS_PC_BIOS) += bios.o +SOBJS-$(CONFIG_SYS_PCI_BIOS) += bios_pci.o +SOBJS-$(CONFIG_SYS_X86_REALMODE) += realmode_switch.o -COBJS-y += bios_setup.o +COBJS-$(CONFIG_SYS_PC_BIOS) += bios_setup.o COBJS-y += board.o COBJS-y += bootm.o +COBJS-y += gcc.o COBJS-y += interrupts.o COBJS-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o COBJS-$(CONFIG_SYS_GENERIC_TIMER) += pcat_timer.o COBJS-$(CONFIG_PCI) += pci.o COBJS-$(CONFIG_PCI) += pci_type1.o -COBJS-y += realmode.o -COBJS-y += timer.o -COBJS-y += video_bios.o -COBJS-y += video.o -COBJS-y += zimage.o +COBJS-$(CONFIG_SYS_X86_REALMODE) += realmode.o +COBJS-y += string.o +COBJS-$(CONFIG_SYS_X86_ISR_TIMER) += timer.o +COBJS-$(CONFIG_VIDEO) += video_bios.o +COBJS-$(CONFIG_VIDEO) += video.o +COBJS-$(CONFIG_CMD_ZBOOT) += zimage.o SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) @@ -49,6 +51,11 @@ OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) $(LIB): $(obj).depend $(OBJS) $(call cmd_link_o_target, $(OBJS)) +$(PREFIXED_LIBGCC): $(NORMAL_LIBGCC) + $(OBJCOPY) $< $@ --prefix-symbols=__normal_ + +$(LIB): $(PREFIXED_LIBGCC) + ######################################################################### # defines $(obj).depend target diff --git a/arch/x86/lib/bios.h b/arch/x86/lib/bios.h index 4a9cdb591b7..a220983df13 100644 --- a/arch/x86/lib/bios.h +++ b/arch/x86/lib/bios.h @@ -24,69 +24,150 @@ #ifndef _BIOS_H_ #define _BIOS_H_ -#define OFFS_ES 0 /* 16bit */ -#define OFFS_GS 2 /* 16bit */ -#define OFFS_DS 4 /* 16bit */ -#define OFFS_EDI 6 /* 32bit */ -#define OFFS_DI 6 /* low 16 bits of EDI */ -#define OFFS_ESI 10 /* 32bit */ -#define OFFS_SI 10 /* low 16 bits of ESI */ -#define OFFS_EBP 14 /* 32bit */ -#define OFFS_BP 14 /* low 16 bits of EBP */ -#define OFFS_ESP 18 /* 32bit */ -#define OFFS_SP 18 /* low 16 bits of ESP */ -#define OFFS_EBX 22 /* 32bit */ -#define OFFS_BX 22 /* low 16 bits of EBX */ -#define OFFS_BL 22 /* low 8 bits of BX */ -#define OFFS_BH 23 /* high 8 bits of BX */ -#define OFFS_EDX 26 /* 32bit */ -#define OFFS_DX 26 /* low 16 bits of EBX */ -#define OFFS_DL 26 /* low 8 bits of BX */ -#define OFFS_DH 27 /* high 8 bits of BX */ -#define OFFS_ECX 30 /* 32bit */ -#define OFFS_CX 30 /* low 16 bits of EBX */ -#define OFFS_CL 30 /* low 8 bits of BX */ -#define OFFS_CH 31 /* high 8 bits of BX */ -#define OFFS_EAX 34 /* 32bit */ -#define OFFS_AX 34 /* low 16 bits of EBX */ -#define OFFS_AL 34 /* low 8 bits of BX */ -#define OFFS_AH 35 /* high 8 bits of BX */ -#define OFFS_VECTOR 38 /* 16bit */ -#define OFFS_IP 40 /* 16bit */ -#define OFFS_CS 42 /* 16bit */ -#define OFFS_FLAGS 44 /* 16bit */ +#define OFFS_ES 0 /* 16bit */ +#define OFFS_GS 2 /* 16bit */ +#define OFFS_DS 4 /* 16bit */ +#define OFFS_EDI 6 /* 32bit */ +#define OFFS_DI 6 /* low 16 bits of EDI */ +#define OFFS_ESI 10 /* 32bit */ +#define OFFS_SI 10 /* low 16 bits of ESI */ +#define OFFS_EBP 14 /* 32bit */ +#define OFFS_BP 14 /* low 16 bits of EBP */ +#define OFFS_ESP 18 /* 32bit */ +#define OFFS_SP 18 /* low 16 bits of ESP */ +#define OFFS_EBX 22 /* 32bit */ +#define OFFS_BX 22 /* low 16 bits of EBX */ +#define OFFS_BL 22 /* low 8 bits of BX */ +#define OFFS_BH 23 /* high 8 bits of BX */ +#define OFFS_EDX 26 /* 32bit */ +#define OFFS_DX 26 /* low 16 bits of EBX */ +#define OFFS_DL 26 /* low 8 bits of BX */ +#define OFFS_DH 27 /* high 8 bits of BX */ +#define OFFS_ECX 30 /* 32bit */ +#define OFFS_CX 30 /* low 16 bits of EBX */ +#define OFFS_CL 30 /* low 8 bits of BX */ +#define OFFS_CH 31 /* high 8 bits of BX */ +#define OFFS_EAX 34 /* 32bit */ +#define OFFS_AX 34 /* low 16 bits of EBX */ +#define OFFS_AL 34 /* low 8 bits of BX */ +#define OFFS_AH 35 /* high 8 bits of BX */ +#define OFFS_VECTOR 38 /* 16bit */ +#define OFFS_IP 40 /* 16bit */ +#define OFFS_CS 42 /* 16bit */ +#define OFFS_FLAGS 44 /* 16bit */ -#define SEGMENT 0x40 -#define STACK 0x800 /* stack at 0x40:0x800 -> 0x800 */ +/* stack at 0x40:0x800 -> 0x800 */ +#define SEGMENT 0x40 +#define STACK 0x800 -/* save general registers */ -/* save some segments */ -/* save callers stack segment .. */ -/* ... in gs */ - /* setup my segments */ - /* setup BIOS stackpointer */ - -#define MAKE_BIOS_STACK \ - pushal; \ - pushw %ds; \ - pushw %gs; \ - pushw %es; \ - pushw %ss; \ - popw %gs; \ - movw $SEGMENT, %ax; \ - movw %ax, %ds; \ - movw %ax, %es; \ - movw %ax, %ss; \ - movw %sp, %bp; \ +/* + * save general registers + * save some segments + * save callers stack segment + * setup BIOS segments + * setup BIOS stackpointer + */ +#define MAKE_BIOS_STACK \ + pushal; \ + pushw %ds; \ + pushw %gs; \ + pushw %es; \ + pushw %ss; \ + popw %gs; \ + movw $SEGMENT, %ax; \ + movw %ax, %ds; \ + movw %ax, %es; \ + movw %ax, %ss; \ + movw %sp, %bp; \ movw $STACK, %sp -#define RESTORE_CALLERS_STACK \ - pushw %gs; /* restore callers stack segment */ \ - popw %ss; \ - movw %bp, %sp; /* restore stackpointer */ \ - popw %es; /* restore segment selectors */ \ - popw %gs; \ - popw %ds; \ - popal /* restore GP registers */ +/* + * restore callers stack segment + * restore some segments + * restore general registers + */ +#define RESTORE_CALLERS_STACK \ + pushw %gs; \ + popw %ss; \ + movw %bp, %sp; \ + popw %es; \ + popw %gs; \ + popw %ds; \ + popal + +#ifndef __ASSEMBLY__ +#define BIOS_DATA ((char *)0x400) +#define BIOS_DATA_SIZE 256 +#define BIOS_BASE ((char *)0xf0000) +#define BIOS_CS 0xf000 + +extern ulong __bios_start; +extern ulong __bios_size; + +/* these are defined in a 16bit segment and needs + * to be accessed with the RELOC_16_xxxx() macros below + */ +extern u16 ram_in_64kb_chunks; +extern u16 bios_equipment; +extern u8 pci_last_bus; + +extern void *rm_int00; +extern void *rm_int01; +extern void *rm_int02; +extern void *rm_int03; +extern void *rm_int04; +extern void *rm_int05; +extern void *rm_int06; +extern void *rm_int07; +extern void *rm_int08; +extern void *rm_int09; +extern void *rm_int0a; +extern void *rm_int0b; +extern void *rm_int0c; +extern void *rm_int0d; +extern void *rm_int0e; +extern void *rm_int0f; +extern void *rm_int10; +extern void *rm_int11; +extern void *rm_int12; +extern void *rm_int13; +extern void *rm_int14; +extern void *rm_int15; +extern void *rm_int16; +extern void *rm_int17; +extern void *rm_int18; +extern void *rm_int19; +extern void *rm_int1a; +extern void *rm_int1b; +extern void *rm_int1c; +extern void *rm_int1d; +extern void *rm_int1e; +extern void *rm_int1f; +extern void *rm_def_int; + +extern void *realmode_reset; +extern void *realmode_pci_bios_call_entry; + +#define RELOC_16_LONG(seg, off) (*(u32 *)(seg << 4 | (u32)&off)) +#define RELOC_16_WORD(seg, off) (*(u16 *)(seg << 4 | (u32)&off)) +#define RELOC_16_BYTE(seg, off) (*(u8 *)(seg << 4 | (u32)&off)) + +#ifdef PCI_BIOS_DEBUG +extern u32 num_pci_bios_present; +extern u32 num_pci_bios_find_device; +extern u32 num_pci_bios_find_class; +extern u32 num_pci_bios_generate_special_cycle; +extern u32 num_pci_bios_read_cfg_byte; +extern u32 num_pci_bios_read_cfg_word; +extern u32 num_pci_bios_read_cfg_dword; +extern u32 num_pci_bios_write_cfg_byte; +extern u32 num_pci_bios_write_cfg_word; +extern u32 num_pci_bios_write_cfg_dword; +extern u32 num_pci_bios_get_irq_routing; +extern u32 num_pci_bios_set_irq; +extern u32 num_pci_bios_unknown_function; +#endif + +#endif #endif diff --git a/arch/x86/lib/bios_pci.S b/arch/x86/lib/bios_pci.S index 53d2ea047af..47c478b27d5 100644 --- a/arch/x86/lib/bios_pci.S +++ b/arch/x86/lib/bios_pci.S @@ -80,11 +80,15 @@ cs incl num_pci_bios_present #endif movl $0x20494350, %eax gs movl %eax, OFFS_EDX(%bp) + + /* We support cfg type 1 version 2.10 */ movb $0x01, %al -gs movb %al, OFFS_AL(%bp) /* We support cfg type 1 */ - movw $0x0210, %ax /* version 2.10 */ +gs movb %al, OFFS_AL(%bp) + movw $0x0210, %ax gs movw %ax, OFFS_BX(%bp) -cs movb pci_last_bus, %al /* last bus number */ + + /* last bus number */ +cs movb pci_last_bus, %al gs movb %al, OFFS_CL(%bp) jmp clear_carry @@ -97,16 +101,22 @@ cs incl num_pci_bios_find_device #endif gs movw OFFS_CX(%bp), %di shll $16, %edi -gs movw OFFS_DX(%bp), %di /* edi now holds device in upper 16 - * bits and vendor in lower 16 bits */ +gs movw OFFS_DX(%bp), %di + /* edi now holds device in upper 16 bits and vendor in lower 16 bits */ + gs movw OFFS_SI(%bp), %si - xorw %bx, %bx /* start at bus 0 dev 0 function 0 */ + + /* start at bus 0 dev 0 function 0 */ + xorw %bx, %bx pfd_loop: - xorw %ax, %ax /* dword 0 is vendor/device */ + /* dword 0 is vendor/device */ + xorw %ax, %ax call __pci_bios_select_register movw $0xcfc, %dx inl %dx, %eax - cmpl %edi, %eax /* our device ? */ + + /* our device ? */ + cmpl %edi, %eax je pfd_found_one pfd_next_dev: /* check for multi function devices */ @@ -120,13 +130,16 @@ pfd_next_dev: andb $0x80, %al jz pfd_not_multi_function pfd_function_not_zero: - incw %bx /* next function, overflows in to - * device number, then bus number */ + /* next function, overflows in to device number, then bus number */ + incw %bx jmp pfd_check_bus pfd_not_multi_function: - andw $0xfff8, %bx /* remove function bits */ - addw $0x0008, %bx /* next device, overflows in to bus number */ + /* remove function bits */ + andw $0xfff8, %bx + + /* next device, overflows in to bus number */ + addw $0x0008, %bx pfd_check_bus: cs movb pci_last_bus, %ah cmpb %ah, %bh @@ -142,7 +155,8 @@ gs movw %bx, OFFS_BX(%bp) jmp clear_carry pfd_not_found: - movb $0x86, %ah /* device not found */ + /* device not found */ + movb $0x86, %ah jmp set_carry /*****************************************************************************/ @@ -152,17 +166,24 @@ pci_bios_find_class: cs incl num_pci_bios_find_class #endif gs movl OFFS_ECX(%bp), %edi - andl $0x00ffffff, %edi /* edi now holds class-code in lower 24 bits */ + + /* edi now holds class-code in lower 24 bits */ + andl $0x00ffffff, %edi gs movw OFFS_SI(%bp), %si - xorw %bx, %bx /* start at bus 0 dev 0 function 0 */ + + /* start at bus 0 dev 0 function 0 */ + xorw %bx, %bx pfc_loop: - movw $8, %ax /* dword 8 is class-code high 24bits */ + /* dword 8 is class-code high 24bits */ + movw $8, %ax call __pci_bios_select_register movw $0xcfc, %dx inl %dx, %eax shrl $8, %eax andl $0x00ffffff, %eax - cmpl %edi, %eax /* our device ? */ + + /* our device ? */ + cmpl %edi, %eax je pfc_found_one pfc_next_dev: /* check for multi function devices */ @@ -175,13 +196,16 @@ pfc_next_dev: andb $0x80, %al jz pfc_not_multi_function pfc_function_not_zero: - incw %bx /* next function, overflows in to - * device number, then bus number */ + /* next function, overflows in to device number, then bus number */ + incw %bx jmp pfc_check_bus pfc_not_multi_function: - andw $0xfff8, %bx /* remove function bits */ - addw $0x0008, %bx /* next device, overflows in to bus number */ + /* remove function bits */ + andw $0xfff8, %bx + + /* next device, overflows in to bus number */ + addw $0x0008, %bx pfc_check_bus: cs movb pci_last_bus, %ah cmpb %ah, %bh @@ -197,7 +221,8 @@ gs movw %bx, OFFS_BX(%bp) jmp clear_carry pfc_not_found: - movb $0x86, %ah /* device not found */ + /* device not found */ + movb $0x86, %ah jmp set_carry /*****************************************************************************/ @@ -206,7 +231,8 @@ pci_bios_generate_special_cycle: #ifdef PCI_BIOS_DEBUG cs incl num_pci_bios_generate_special_cycle #endif - movb $0x81, %ah /* function not supported */ + /* function not supported */ + movb $0x81, %ah jmp set_carry /*****************************************************************************/ @@ -296,7 +322,8 @@ pci_bios_get_irq_routing: #ifdef PCI_BIOS_DEBUG cs incl num_pci_bios_get_irq_routing #endif - movb $0x81, %ah /* function not supported */ + /* function not supported */ + movb $0x81, %ah jmp set_carry /*****************************************************************************/ @@ -305,7 +332,8 @@ pci_bios_set_irq: #ifdef PCI_BIOS_DEBUG cs incl num_pci_bios_set_irq #endif - movb $0x81, %ah /* function not supported */ + /* function not supported */ + movb $0x81, %ah jmp set_carry /*****************************************************************************/ @@ -314,7 +342,8 @@ unknown_function: #ifdef PCI_BIOS_DEBUG cs incl num_pci_bios_unknown_function #endif - movb $0x81, %ah /* function not supported */ + /* function not supported */ + movb $0x81, %ah jmp set_carry /*****************************************************************************/ @@ -323,7 +352,8 @@ pci_bios_select_register: gs movw OFFS_BX(%bp), %bx gs movw OFFS_DI(%bp), %ax /* destroys eax, dx */ -__pci_bios_select_register: /* BX holds device id, AX holds register index */ +__pci_bios_select_register: + /* BX holds device id, AX holds register index */ pushl %ebx andl $0xfc, %eax andl $0xffff, %ebx @@ -338,7 +368,9 @@ __pci_bios_select_register: /* BX holds device id, AX holds regist clear_carry: gs movw OFFS_FLAGS(%bp), %ax - andw $0xfffe, %ax /* clear carry -- function succeeded */ + + /* clear carry -- function succeeded */ + andw $0xfffe, %ax gs movw %ax, OFFS_FLAGS(%bp) xorw %ax, %ax gs movb %ah, OFFS_AH(%bp) @@ -347,7 +379,9 @@ gs movb %ah, OFFS_AH(%bp) set_carry: gs movb %ah, OFFS_AH(%bp) gs movw OFFS_FLAGS(%bp), %ax - orw $1, %ax /* return carry -- function not supported */ + + /* return carry -- function not supported */ + orw $1, %ax gs movw %ax, OFFS_FLAGS(%bp) movw $-1, %ax ret diff --git a/arch/x86/lib/bios_setup.c b/arch/x86/lib/bios_setup.c index 9bf7e5872f1..265f7d671ee 100644 --- a/arch/x86/lib/bios_setup.c +++ b/arch/x86/lib/bios_setup.c @@ -34,74 +34,22 @@ #include <pci.h> #include <asm/realmode.h> #include <asm/io.h> +#include "bios.h" DECLARE_GLOBAL_DATA_PTR; #define NUMVECTS 256 -#define BIOS_DATA ((char*)0x400) -#define BIOS_DATA_SIZE 256 -#define BIOS_BASE ((char*)0xf0000) -#define BIOS_CS 0xf000 - -extern ulong __bios_start; -extern ulong __bios_size; - -/* these are defined in a 16bit segment and needs - * to be accessed with the RELOC_16_xxxx() macros below - */ -extern u16 ram_in_64kb_chunks; -extern u16 bios_equipment; -extern u8 pci_last_bus; - -extern void *rm_int00; -extern void *rm_int01; -extern void *rm_int02; -extern void *rm_int03; -extern void *rm_int04; -extern void *rm_int05; -extern void *rm_int06; -extern void *rm_int07; -extern void *rm_int08; -extern void *rm_int09; -extern void *rm_int0a; -extern void *rm_int0b; -extern void *rm_int0c; -extern void *rm_int0d; -extern void *rm_int0e; -extern void *rm_int0f; -extern void *rm_int10; -extern void *rm_int11; -extern void *rm_int12; -extern void *rm_int13; -extern void *rm_int14; -extern void *rm_int15; -extern void *rm_int16; -extern void *rm_int17; -extern void *rm_int18; -extern void *rm_int19; -extern void *rm_int1a; -extern void *rm_int1b; -extern void *rm_int1c; -extern void *rm_int1d; -extern void *rm_int1e; -extern void *rm_int1f; -extern void *rm_def_int; - -extern void *realmode_reset; -extern void *realmode_pci_bios_call_entry; - static int set_jmp_vector(int entry_point, void *target) { - if (entry_point & ~0xffff) { + if (entry_point & ~0xffff) return -1; - } - if (((u32)target-0xf0000) & ~0xffff) { + if (((u32)target - 0xf0000) & ~0xffff) return -1; - } + printf("set_jmp_vector: 0xf000:%04x -> %p\n", - entry_point, target); + entry_point, target); /* jmp opcode */ writeb(0xea, 0xf0000 + entry_point); @@ -115,51 +63,42 @@ static int set_jmp_vector(int entry_point, void *target) return 0; } - -/* - ************************************************************ - * Install an interrupt vector - ************************************************************ - */ - +/* Install an interrupt vector */ static void setvector(int vector, u16 segment, void *handler) { - u16 *ptr = (u16*)(vector*4); - ptr[0] = ((u32)handler - (segment << 4))&0xffff; + u16 *ptr = (u16 *)(vector * 4); + ptr[0] = ((u32)handler - (segment << 4)) & 0xffff; ptr[1] = segment; #if 0 printf("setvector: int%02x -> %04x:%04x\n", - vector, ptr[1], ptr[0]); + vector, ptr[1], ptr[0]); #endif } -#define RELOC_16_LONG(seg, off) *(u32*)(seg << 4 | (u32)&off) -#define RELOC_16_WORD(seg, off) *(u16*)(seg << 4 | (u32)&off) -#define RELOC_16_BYTE(seg, off) *(u8*)(seg << 4 | (u32)&off) - int bios_setup(void) { - ulong bios_start = (ulong)&__bios_start + gd->reloc_off; + /* The BIOS section is not relocated and still in the ROM. */ + ulong bios_start = (ulong)&__bios_start; ulong bios_size = (ulong)&__bios_size; - static int done=0; + static int done; int vector; #ifdef CONFIG_PCI struct pci_controller *pri_hose; #endif - if (done) { + if (done) return 0; - } + done = 1; if (bios_size > 65536) { printf("BIOS too large (%ld bytes, max is 65536)\n", - bios_size); + bios_size); return -1; } - memcpy(BIOS_BASE, (void*)bios_start, bios_size); + memcpy(BIOS_BASE, (void *)bios_start, bios_size); /* clear bda */ memset(BIOS_DATA, 0, BIOS_DATA_SIZE); @@ -178,9 +117,8 @@ int bios_setup(void) /* setup realmode interrupt vectors */ - for (vector = 0; vector < NUMVECTS; vector++) { + for (vector = 0; vector < NUMVECTS; vector++) setvector(vector, BIOS_CS, &rm_def_int); - } setvector(0x00, BIOS_CS, &rm_int00); setvector(0x01, BIOS_CS, &rm_int01); diff --git a/arch/x86/lib/board.c b/arch/x86/lib/board.c index 89635808086..d742fec928b 100644 --- a/arch/x86/lib/board.c +++ b/arch/x86/lib/board.c @@ -56,15 +56,6 @@ #define XTRN_DECLARE_GLOBAL_DATA_PTR /* empty = allocate here */ DECLARE_GLOBAL_DATA_PTR = (gd_t *) (CONFIG_SYS_INIT_GD_ADDR); - -/* Exports from the Linker Script */ -extern ulong __text_start; -extern ulong __data_end; -extern ulong __rel_dyn_start; -extern ulong __rel_dyn_end; -extern ulong __bss_start; -extern ulong __bss_end; - /************************************************************************ * Init Utilities * ************************************************************************ @@ -72,49 +63,41 @@ extern ulong __bss_end; * or dropped completely, * but let's get it working (again) first... */ -static int init_baudrate (void) +static int init_baudrate(void) { gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE); return 0; } -static int display_banner (void) +static int display_banner(void) { - printf ("\n\n%s\n\n", version_string); -/* - printf ("U-Boot code: %08lX -> %08lX data: %08lX -> %08lX\n" - " BSS: %08lX -> %08lX stack: %08lX -> %08lX\n", - i386boot_start, i386boot_romdata_start-1, - i386boot_romdata_dest, i386boot_romdata_dest+i386boot_romdata_size-1, - i386boot_bss_start, i386boot_bss_start+i386boot_bss_size-1, - i386boot_bss_start+i386boot_bss_size, - i386boot_bss_start+i386boot_bss_size+CONFIG_SYS_STACK_SIZE-1); - -*/ + printf("\n\n%s\n\n", version_string); - return (0); + return 0; } -static int display_dram_config (void) +static int display_dram_config(void) { int i; - puts ("DRAM Configuration:\n"); + puts("DRAM Configuration:\n"); - for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) { - printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); - print_size (gd->bd->bi_dram[i].size, "\n"); + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); + print_size(gd->bd->bi_dram[i].size, "\n"); } - return (0); + return 0; } -static void display_flash_config (ulong size) +#ifndef CONFIG_SYS_NO_FLASH +static void display_flash_config(ulong size) { - puts ("Flash: "); - print_size (size, "\n"); + puts("Flash: "); + print_size(size, "\n"); } +#endif /* * Breath some life into the board... @@ -178,19 +161,26 @@ gd_t *gd; static int calculate_relocation_address(void) { - void *text_start = &__text_start; - void *bss_end = &__bss_end; - void *dest_addr; + ulong text_start = (ulong)&__text_start; + ulong bss_end = (ulong)&__bss_end; + ulong dest_addr; ulong rel_offset; /* Calculate destination RAM Address and relocation offset */ - dest_addr = (void *)gd->ram_size; + dest_addr = gd->ram_size; dest_addr -= CONFIG_SYS_STACK_SIZE; dest_addr -= (bss_end - text_start); + + /* + * Round destination address down to 16-byte boundary to keep + * IDT and GDT 16-byte aligned + */ + dest_addr &= ~15; + rel_offset = dest_addr - text_start; gd->start_addr_sp = gd->ram_size; - gd->relocaddr = (ulong)dest_addr; + gd->relocaddr = dest_addr; gd->reloc_off = rel_offset; return 0; @@ -214,7 +204,7 @@ static int clear_bss(void) void *bss_end = &__bss_end; ulong *dst_addr = (ulong *)(bss_start + gd->reloc_off); - ulong *end_addr = (ulong *)(bss_end + gd->reloc_off);; + ulong *end_addr = (ulong *)(bss_end + gd->reloc_off); while (dst_addr < end_addr) *dst_addr++ = 0x00000000; @@ -227,10 +217,30 @@ static int do_elf_reloc_fixups(void) Elf32_Rel *re_src = (Elf32_Rel *)(&__rel_dyn_start); Elf32_Rel *re_end = (Elf32_Rel *)(&__rel_dyn_end); + Elf32_Addr *offset_ptr_rom; + Elf32_Addr *offset_ptr_ram; + + /* The size of the region of u-boot that runs out of RAM. */ + uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start; + do { - if (re_src->r_offset >= CONFIG_SYS_TEXT_BASE) - if (*(Elf32_Addr *)(re_src->r_offset + gd->reloc_off) >= CONFIG_SYS_TEXT_BASE) - *(Elf32_Addr *)(re_src->r_offset + gd->reloc_off) += gd->reloc_off; + /* Get the location from the relocation entry */ + offset_ptr_rom = (Elf32_Addr *)re_src->r_offset; + + /* Check that the location of the relocation is in .text */ + if (offset_ptr_rom >= (Elf32_Addr *)CONFIG_SYS_TEXT_BASE) { + + /* Switch to the in-RAM version */ + offset_ptr_ram = (Elf32_Addr *)((ulong)offset_ptr_rom + + gd->reloc_off); + + /* Check that the target points into .text */ + if (*offset_ptr_ram >= CONFIG_SYS_TEXT_BASE && + *offset_ptr_ram < + (CONFIG_SYS_TEXT_BASE + size)) { + *offset_ptr_ram += gd->reloc_off; + } + } } while (re_src++ < re_end); return 0; @@ -254,13 +264,18 @@ void board_init_f(ulong boot_flags) relocate_code(gd->start_addr_sp, gd, gd->relocaddr); /* NOTREACHED - relocate_code() does not return */ - while(1); + while (1) + ; } void board_init_r(gd_t *id, ulong dest_addr) { +#if defined(CONFIG_CMD_NET) char *s; +#endif +#ifndef CONFIG_SYS_NO_FLASH ulong size; +#endif static bd_t bd_data; static gd_t gd_data; init_fnc_t **init_fnc_ptr; @@ -272,10 +287,10 @@ void board_init_r(gd_t *id, ulong dest_addr) memcpy(gd, id, sizeof(gd_t)); /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); + __asm__ __volatile__("" : : : "memory"); gd->bd = &bd_data; - memset (gd->bd, 0, sizeof (bd_t)); + memset(gd->bd, 0, sizeof(bd_t)); show_boot_progress(0x22); gd->baudrate = CONFIG_BAUDRATE; @@ -285,28 +300,31 @@ void board_init_r(gd_t *id, ulong dest_addr) for (init_fnc_ptr = init_sequence_r; *init_fnc_ptr; ++init_fnc_ptr) { if ((*init_fnc_ptr)() != 0) - hang (); + hang(); } show_boot_progress(0x23); #ifdef CONFIG_SERIAL_MULTI serial_initialize(); #endif + +#ifndef CONFIG_SYS_NO_FLASH /* configure available FLASH banks */ size = flash_init(); display_flash_config(size); show_boot_progress(0x24); +#endif show_boot_progress(0x25); /* initialize environment */ - env_relocate (); + env_relocate(); show_boot_progress(0x26); #ifdef CONFIG_CMD_NET /* IP Address */ - bd_data.bi_ip_addr = getenv_IPaddr ("ipaddr"); + bd_data.bi_ip_addr = getenv_IPaddr("ipaddr"); #endif #if defined(CONFIG_PCI) @@ -319,9 +337,9 @@ void board_init_r(gd_t *id, ulong dest_addr) show_boot_progress(0x27); - stdio_init (); + stdio_init(); - jumptable_init (); + jumptable_init(); /* Initialize the console (after the relocation and devices init) */ console_init_r(); @@ -333,7 +351,7 @@ void board_init_r(gd_t *id, ulong dest_addr) #if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE) WATCHDOG_RESET(); - puts ("PCMCIA:"); + puts("PCMCIA:"); pcmcia_init(); #endif @@ -348,7 +366,7 @@ void board_init_r(gd_t *id, ulong dest_addr) show_boot_progress(0x28); #ifdef CONFIG_STATUS_LED - status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); + status_led_set(STATUS_LED_BOOT, STATUS_LED_BLINKING); #endif udelay(20); @@ -356,9 +374,10 @@ void board_init_r(gd_t *id, ulong dest_addr) /* Initialize from environment */ load_addr = getenv_ulong("loadaddr", 16, load_addr); #if defined(CONFIG_CMD_NET) - if ((s = getenv ("bootfile")) != NULL) { - copy_filename (BootFile, s, sizeof (BootFile)); - } + s = getenv("bootfile"); + + if (s != NULL) + copy_filename(BootFile, s, sizeof(BootFile)); #endif WATCHDOG_RESET(); @@ -390,10 +409,10 @@ void board_init_r(gd_t *id, ulong dest_addr) eth_initialize(gd->bd); #endif -#if ( defined(CONFIG_CMD_NET)) && (0) +#if (defined(CONFIG_CMD_NET)) && (0) WATCHDOG_RESET(); # ifdef DEBUG - puts ("Reset Ethernet PHY\n"); + puts("Reset Ethernet PHY\n"); # endif reset_phy(); #endif @@ -410,27 +429,27 @@ void board_init_r(gd_t *id, ulong dest_addr) #ifdef CONFIG_POST - post_run (NULL, POST_RAM | post_bootmode_get(0)); + post_run(NULL, POST_RAM | post_bootmode_get(0)); #endif - show_boot_progress(0x29); /* main_loop() can return to retry autoboot, if so just run it again. */ - for (;;) { + for (;;) main_loop(); - } /* NOTREACHED - no way out of command loop except booting */ } -void hang (void) +void hang(void) { - puts ("### ERROR ### Please RESET the board ###\n"); - for (;;); + puts("### ERROR ### Please RESET the board ###\n"); + for (;;) + ; } -unsigned long do_go_exec (ulong (*entry)(int, char * const []), int argc, char * const argv[]) +unsigned long do_go_exec(ulong (*entry)(int, char * const []), + int argc, char * const argv[]) { unsigned long ret = 0; char **argv_tmp; diff --git a/arch/x86/lib/bootm.c b/arch/x86/lib/bootm.c index a21a21f1f7f..bac7b4f0cfb 100644 --- a/arch/x86/lib/bootm.c +++ b/arch/x86/lib/bootm.c @@ -32,9 +32,10 @@ #include <asm/zimage.h> /*cmd_boot.c*/ -int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images) +int do_bootm_linux(int flag, int argc, char * const argv[], + bootm_headers_t *images) { - void *base_ptr; + void *base_ptr = NULL; ulong os_data, os_len; image_header_t *hdr; @@ -48,41 +49,43 @@ int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *ima if (images->legacy_hdr_valid) { hdr = images->legacy_hdr_os; - if (image_check_type (hdr, IH_TYPE_MULTI)) { + if (image_check_type(hdr, IH_TYPE_MULTI)) { /* if multi-part image, we need to get first subimage */ - image_multi_getimg (hdr, 0, &os_data, &os_len); + image_multi_getimg(hdr, 0, &os_data, &os_len); } else { /* otherwise get image data */ - os_data = image_get_data (hdr); - os_len = image_get_data_size (hdr); + os_data = image_get_data(hdr); + os_len = image_get_data_size(hdr); } #if defined(CONFIG_FIT) } else if (images->fit_uname_os) { - ret = fit_image_get_data (images->fit_hdr_os, + ret = fit_image_get_data(images->fit_hdr_os, images->fit_noffset_os, &data, &len); if (ret) { - puts ("Can't get image data/size!\n"); + puts("Can't get image data/size!\n"); goto error; } os_data = (ulong)data; os_len = (ulong)len; #endif } else { - puts ("Could not find kernel image!\n"); + puts("Could not find kernel image!\n"); goto error; } - base_ptr = load_zimage ((void*)os_data, os_len, +#ifdef CONFIG_CMD_ZBOOT + base_ptr = load_zimage((void *)os_data, os_len, images->rd_start, images->rd_end - images->rd_start, 0); +#endif if (NULL == base_ptr) { - printf ("## Kernel loading failed ...\n"); + printf("## Kernel loading failed ...\n"); goto error; } #ifdef DEBUG - printf ("## Transferring control to Linux (at address %08x) ...\n", + printf("## Transferring control to Linux (at address %08x) ...\n", (u32)base_ptr); #endif diff --git a/arch/x86/lib/gcc.c b/arch/x86/lib/gcc.c new file mode 100644 index 00000000000..4043431ecaa --- /dev/null +++ b/arch/x86/lib/gcc.c @@ -0,0 +1,38 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2009 coresystems GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 or later of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifdef __GNUC__ + +/* + * GCC's libgcc handling is quite broken. While the libgcc functions + * are always regparm(0) the code that calls them uses whatever the + * compiler call specifies. Therefore we need a wrapper around those + * functions. See gcc bug PR41055 for more information. + */ +#define WRAP_LIBGCC_CALL(type, name) \ + type __normal_##name(type a, type b) __attribute__((regparm(0))); \ + type __wrap_##name(type a, type b); \ + type __wrap_##name(type a, type b) { return __normal_##name(a, b); } + +WRAP_LIBGCC_CALL(long long, __divdi3) +WRAP_LIBGCC_CALL(unsigned long long, __udivdi3) +WRAP_LIBGCC_CALL(long long, __moddi3) +WRAP_LIBGCC_CALL(unsigned long long, __umoddi3) + +#endif diff --git a/arch/x86/lib/interrupts.c b/arch/x86/lib/interrupts.c index 04a9c79f9f5..76fbe9dc7f3 100644 --- a/arch/x86/lib/interrupts.c +++ b/arch/x86/lib/interrupts.c @@ -56,8 +56,8 @@ struct irq_action { }; static struct irq_action irq_handlers[CONFIG_SYS_NUM_IRQS] = { {0} }; -static int spurious_irq_cnt = 0; -static int spurious_irq = 0; +static int spurious_irq_cnt; +static int spurious_irq; void irq_install_handler(int irq, interrupt_handler_t *handler, void *arg) { @@ -70,10 +70,10 @@ void irq_install_handler(int irq, interrupt_handler_t *handler, void *arg) if (irq_handlers[irq].handler != NULL) printf("irq_install_handler: 0x%08lx replacing 0x%08lx\n", - (ulong) handler, - (ulong) irq_handlers[irq].handler); + (ulong) handler, + (ulong) irq_handlers[irq].handler); - status = disable_interrupts (); + status = disable_interrupts(); irq_handlers[irq].handler = handler; irq_handlers[irq].arg = arg; @@ -96,7 +96,7 @@ void irq_free_handler(int irq) return; } - status = disable_interrupts (); + status = disable_interrupts(); mask_irq(irq); @@ -141,14 +141,14 @@ int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) int irq; printf("Spurious IRQ: %u, last unknown IRQ: %d\n", - spurious_irq_cnt, spurious_irq); + spurious_irq_cnt, spurious_irq); - printf ("Interrupt-Information:\n"); - printf ("Nr Routine Arg Count\n"); + printf("Interrupt-Information:\n"); + printf("Nr Routine Arg Count\n"); for (irq = 0; irq <= CONFIG_SYS_NUM_IRQS; irq++) { if (irq_handlers[irq].handler != NULL) { - printf ("%02d %08lx %08lx %d\n", + printf("%02d %08lx %08lx %d\n", irq, (ulong)irq_handlers[irq].handler, (ulong)irq_handlers[irq].arg, diff --git a/arch/x86/lib/pcat_interrupts.c b/arch/x86/lib/pcat_interrupts.c index 2caae208ebd..5dac4989fec 100644 --- a/arch/x86/lib/pcat_interrupts.c +++ b/arch/x86/lib/pcat_interrupts.c @@ -76,7 +76,7 @@ int interrupt_init(void) * Enable cascaded interrupts by unmasking the cascade IRQ pin of * the master PIC */ - unmask_irq (2); + unmask_irq(2); enable_interrupts(); diff --git a/arch/x86/lib/pcat_timer.c b/arch/x86/lib/pcat_timer.c index f2a54223afd..6b3db694470 100644 --- a/arch/x86/lib/pcat_timer.c +++ b/arch/x86/lib/pcat_timer.c @@ -30,7 +30,7 @@ #define TIMER0_VALUE 0x04aa /* 1kHz 1.9318MHz / 1000 */ #define TIMER2_VALUE 0x0a8e /* 440Hz */ -static int timer_init_done = 0; +static int timer_init_done; int timer_init(void) { @@ -42,18 +42,18 @@ int timer_init(void) * (to stasrt a beep: write 3 to port 0x61, * to stop it again: write 0) */ - outb (PIT_CMD_CTR0 | PIT_CMD_BOTH | PIT_CMD_MODE2, - PIT_BASE + PIT_COMMAND); - outb (TIMER0_VALUE & 0xff, PIT_BASE + PIT_T0); - outb (TIMER0_VALUE >> 8, PIT_BASE + PIT_T0); + outb(PIT_CMD_CTR0 | PIT_CMD_BOTH | PIT_CMD_MODE2, + PIT_BASE + PIT_COMMAND); + outb(TIMER0_VALUE & 0xff, PIT_BASE + PIT_T0); + outb(TIMER0_VALUE >> 8, PIT_BASE + PIT_T0); - outb (PIT_CMD_CTR2 | PIT_CMD_BOTH | PIT_CMD_MODE3, - PIT_BASE + PIT_COMMAND); - outb (TIMER2_VALUE & 0xff, PIT_BASE + PIT_T2); - outb (TIMER2_VALUE >> 8, PIT_BASE + PIT_T2); + outb(PIT_CMD_CTR2 | PIT_CMD_BOTH | PIT_CMD_MODE3, + PIT_BASE + PIT_COMMAND); + outb(TIMER2_VALUE & 0xff, PIT_BASE + PIT_T2); + outb(TIMER2_VALUE >> 8, PIT_BASE + PIT_T2); - irq_install_handler (0, timer_isr, NULL); - unmask_irq (0); + irq_install_handler(0, timer_isr, NULL); + unmask_irq(0); timer_init_done = 1; @@ -64,21 +64,20 @@ static u16 read_pit(void) { u8 low; - outb (PIT_CMD_LATCH, PIT_BASE + PIT_COMMAND); - low = inb (PIT_BASE + PIT_T0); + outb(PIT_CMD_LATCH, PIT_BASE + PIT_COMMAND); + low = inb(PIT_BASE + PIT_T0); - return ((inb (PIT_BASE + PIT_T0) << 8) | low); + return (inb(PIT_BASE + PIT_T0) << 8) | low; } /* this is not very exact */ -void __udelay (unsigned long usec) +void __udelay(unsigned long usec) { int counter; int wraps; - if (timer_init_done) - { - counter = read_pit (); + if (timer_init_done) { + counter = read_pit(); wraps = usec / 1000; usec = usec % 1000; @@ -92,7 +91,7 @@ void __udelay (unsigned long usec) } while (1) { - int new_count = read_pit (); + int new_count = read_pit(); if (((new_count < usec) && !wraps) || wraps < 0) break; diff --git a/arch/x86/lib/pci.c b/arch/x86/lib/pci.c index 593a7db75f8..71878dd7dcb 100644 --- a/arch/x86/lib/pci.c +++ b/arch/x86/lib/pci.c @@ -42,11 +42,13 @@ int pci_shadow_rom(pci_dev_t dev, unsigned char *dest) u16 device; u32 class_code; + u32 pci_data; + hose = pci_bus_to_hose(PCI_BUS(dev)); -#if 0 - printf("pci_shadow_rom() asked to shadow device %x to %x\n", + + debug("pci_shadow_rom() asked to shadow device %x to %x\n", dev, (u32)dest); -#endif + pci_read_config_word(dev, PCI_VENDOR_ID, &vendor); pci_read_config_word(dev, PCI_DEVICE_ID, &device); pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_code); @@ -67,7 +69,7 @@ int pci_shadow_rom(pci_dev_t dev, unsigned char *dest) return -1; } - size = (~(addr_reg&PCI_ROM_ADDRESS_MASK))+1; + size = (~(addr_reg&PCI_ROM_ADDRESS_MASK)) + 1; debug("ROM is %d bytes\n", size); @@ -80,27 +82,25 @@ int pci_shadow_rom(pci_dev_t dev, unsigned char *dest) |PCI_ROM_ADDRESS_ENABLE); - for (i=rom_addr;i<rom_addr+size; i+=512) { - - + for (i = rom_addr; i < rom_addr + size; i += 512) { if (readw(i) == 0xaa55) { - u32 pci_data; #ifdef PCI_ROM_SCAN_VERBOSE printf("ROM signature found\n"); #endif - pci_data = readw(0x18+i); + pci_data = readw(0x18 + i); pci_data += i; - if (0==memcmp((void*)pci_data, "PCIR", 4)) { + if (0 == memcmp((void *)pci_data, "PCIR", 4)) { #ifdef PCI_ROM_SCAN_VERBOSE - printf("Fount PCI rom image at offset %d\n", i-rom_addr); + printf("Fount PCI rom image at offset %d\n", + i - rom_addr); printf("Vendor %04x device %04x class %06x\n", - readw(pci_data+4), readw(pci_data+6), - readl(pci_data+0x0d)&0xffffff); + readw(pci_data + 4), readw(pci_data + 6), + readl(pci_data + 0x0d) & 0xffffff); printf("%s\n", - (readw(pci_data+0x15) &0x80)? - "Last image":"More images follow"); - switch (readb(pci_data+0x14)) { + (readw(pci_data + 0x15) & 0x80) ? + "Last image" : "More images follow"); + switch (readb(pci_data + 0x14)) { case 0: printf("X86 code\n"); break; @@ -111,35 +111,38 @@ int pci_shadow_rom(pci_dev_t dev, unsigned char *dest) printf("PARISC code\n"); break; } - printf("Image size %d\n", readw(pci_data+0x10) * 512); + printf("Image size %d\n", + readw(pci_data + 0x10) * 512); #endif - /* FixMe: I think we should compare the class code - * bytes as well but I have no reference on the - * exact order of these bytes in the PCI ROM header */ - if (readw(pci_data+4) == vendor && - readw(pci_data+6) == device && - /* (readl(pci_data+0x0d)&0xffffff) == class_code && */ - readb(pci_data+0x14) == 0 /* x86 code image */ ) { + /* + * FixMe: I think we should compare the class + * code bytes as well but I have no reference + * on the exact order of these bytes in the PCI + * ROM header + */ + if (readw(pci_data + 4) == vendor && + readw(pci_data + 6) == device && + readb(pci_data + 0x14) == 0) { #ifdef PCI_ROM_SCAN_VERBOSE - printf("Suitable ROM image found, copying\n"); + printf("Suitable ROM image found\n"); #endif - memmove(dest, (void*)rom_addr, readw(pci_data+0x10) * 512); + memmove(dest, (void *)rom_addr, + readw(pci_data + 0x10) * 512); res = 0; break; } - if (readw(pci_data+0x15) &0x80) { + + if (readw(pci_data + 0x15) & 0x80) break; - } } } } #ifdef PCI_ROM_SCAN_VERBOSE - if (res) { + if (res) printf("No suitable image found\n"); - } #endif /* disable PAR register and PCI device ROM address devocer */ pci_remove_rom_window(hose, rom_addr); @@ -148,3 +151,38 @@ int pci_shadow_rom(pci_dev_t dev, unsigned char *dest) return res; } + +#ifdef PCI_BIOS_DEBUG + +void print_bios_bios_stat(void) +{ + printf("16 bit functions:\n"); + printf("pci_bios_present: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_present)); + printf("pci_bios_find_device: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_find_device)); + printf("pci_bios_find_class: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_find_class)); + printf("pci_bios_generate_special_cycle: %d\n", + RELOC_16_LONG(0xf000, + num_pci_bios_generate_special_cycle)); + printf("pci_bios_read_cfg_byte: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_byte)); + printf("pci_bios_read_cfg_word: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_word)); + printf("pci_bios_read_cfg_dword: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_read_cfg_dword)); + printf("pci_bios_write_cfg_byte: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_byte)); + printf("pci_bios_write_cfg_word: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_word)); + printf("pci_bios_write_cfg_dword: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_write_cfg_dword)); + printf("pci_bios_get_irq_routing: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_get_irq_routing)); + printf("pci_bios_set_irq: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_set_irq)); + printf("pci_bios_unknown_function: %d\n", + RELOC_16_LONG(0xf000, num_pci_bios_unknown_function)); +} +#endif diff --git a/arch/x86/lib/pci_type1.c b/arch/x86/lib/pci_type1.c index da1d3566ad5..a25fa051d50 100644 --- a/arch/x86/lib/pci_type1.c +++ b/arch/x86/lib/pci_type1.c @@ -29,7 +29,7 @@ #include <asm/io.h> #include <pci.h> -#define cfg_read(val, addr, op) *val = op((int)(addr)) +#define cfg_read(val, addr, op) (*val = op((int)(addr))) #define cfg_write(val, addr, op) op((val), (int)(addr)) #define TYPE1_PCI_OP(rw, size, type, op, mask) \ @@ -42,7 +42,6 @@ type1_##rw##_config_##size(struct pci_controller *hose, \ return 0; \ } - TYPE1_PCI_OP(read, byte, u8 *, inb, 3) TYPE1_PCI_OP(read, word, u16 *, inw, 2) TYPE1_PCI_OP(read, dword, u32 *, inl, 0) @@ -51,7 +50,11 @@ TYPE1_PCI_OP(write, byte, u8, outb, 3) TYPE1_PCI_OP(write, word, u16, outw, 2) TYPE1_PCI_OP(write, dword, u32, outl, 0) -void pci_setup_type1(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data) +/* bus mapping constants (used for PCI core initialization) */ +#define PCI_REG_ADDR 0x00000cf8 +#define PCI_REG_DATA 0x00000cfc + +void pci_setup_type1(struct pci_controller *hose) { pci_set_ops(hose, type1_read_config_byte, @@ -61,6 +64,6 @@ void pci_setup_type1(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data) type1_write_config_word, type1_write_config_dword); - hose->cfg_addr = (unsigned int *) cfg_addr; - hose->cfg_data = (unsigned char *) cfg_data; + hose->cfg_addr = (unsigned int *)PCI_REG_ADDR; + hose->cfg_data = (unsigned char *)PCI_REG_DATA; } diff --git a/arch/x86/lib/realmode.c b/arch/x86/lib/realmode.c index 6aa0f23a1a4..75511b2bdf9 100644 --- a/arch/x86/lib/realmode.c +++ b/arch/x86/lib/realmode.c @@ -26,15 +26,12 @@ #include <asm/ptrace.h> #include <asm/realmode.h> -#define REALMODE_MAILBOX ((char*)0xe00) - -extern ulong __realmode_start; -extern ulong __realmode_size; -extern char realmode_enter; +#define REALMODE_MAILBOX ((char *)0xe00) int realmode_setup(void) { - ulong realmode_start = (ulong)&__realmode_start + gd->reloc_off; + /* The realmode section is not relocated and still in the ROM. */ + ulong realmode_start = (ulong)&__realmode_start; ulong realmode_size = (ulong)&__realmode_size; /* copy the realmode switch code */ @@ -63,15 +60,14 @@ int enter_realmode(u16 seg, u16 off, struct pt_regs *in, struct pt_regs *out) in->eip = off; in->xcs = seg; - if (3>(in->esp & 0xffff)) { + if ((in->esp & 0xffff) < 4) printf("Warning: entering realmode with sp < 4 will fail\n"); - } memcpy(REALMODE_MAILBOX, in, sizeof(struct pt_regs)); asm("wbinvd\n"); __asm__ volatile ( - "lcall $0x20,%0\n" : : "i" (&realmode_enter) ); + "lcall $0x20,%0\n" : : "i" (&realmode_enter)); asm("wbinvd\n"); memcpy(out, REALMODE_MAILBOX, sizeof(struct pt_regs)); @@ -79,9 +75,10 @@ int enter_realmode(u16 seg, u16 off, struct pt_regs *in, struct pt_regs *out) return out->eax; } - -/* This code is supposed to access a realmode interrupt - * it does currently not work for me */ +/* + * This code is supposed to access a realmode interrupt + * it does currently not work for me + */ int enter_realmode_int(u8 lvl, struct pt_regs *in, struct pt_regs *out) { /* place two instructions at 0x700 */ @@ -92,5 +89,5 @@ int enter_realmode_int(u8 lvl, struct pt_regs *in, struct pt_regs *out) enter_realmode(0x00, 0x700, in, out); - return out->eflags&1; + return out->eflags & 0x00000001; } diff --git a/arch/x86/lib/string.c b/arch/x86/lib/string.c new file mode 100644 index 00000000000..f2ea7e4e338 --- /dev/null +++ b/arch/x86/lib/string.c @@ -0,0 +1,87 @@ +/* + * Copyright (C) 1991,1992,1993,1997,1998,2003, 2005 Free Software Foundation, Inc. + * This file is part of the GNU C Library. + * Copyright (c) 2011 The Chromium OS Authors. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* From glibc-2.14, sysdeps/i386/memset.c */ + +#include <compiler.h> +#include <asm/string.h> +#include <linux/types.h> + +typedef uint32_t op_t; + +void *memset(void *dstpp, int c, size_t len) +{ + int d0; + unsigned long int dstp = (unsigned long int) dstpp; + + /* This explicit register allocation improves code very much indeed. */ + register op_t x asm("ax"); + + x = (unsigned char) c; + + /* Clear the direction flag, so filling will move forward. */ + asm volatile("cld"); + + /* This threshold value is optimal. */ + if (len >= 12) { + /* Fill X with four copies of the char we want to fill with. */ + x |= (x << 8); + x |= (x << 16); + + /* Adjust LEN for the bytes handled in the first loop. */ + len -= (-dstp) % sizeof(op_t); + + /* + * There are at least some bytes to set. No need to test for + * LEN == 0 in this alignment loop. + */ + + /* Fill bytes until DSTP is aligned on a longword boundary. */ + asm volatile( + "rep\n" + "stosb" /* %0, %2, %3 */ : + "=D" (dstp), "=c" (d0) : + "0" (dstp), "1" ((-dstp) % sizeof(op_t)), "a" (x) : + "memory"); + + /* Fill longwords. */ + asm volatile( + "rep\n" + "stosl" /* %0, %2, %3 */ : + "=D" (dstp), "=c" (d0) : + "0" (dstp), "1" (len / sizeof(op_t)), "a" (x) : + "memory"); + len %= sizeof(op_t); + } + + /* Write the last few bytes. */ + asm volatile( + "rep\n" + "stosb" /* %0, %2, %3 */ : + "=D" (dstp), "=c" (d0) : + "0" (dstp), "1" (len), "a" (x) : + "memory"); + + return dstpp; +} diff --git a/arch/x86/lib/timer.c b/arch/x86/lib/timer.c index 8b1bde708ca..fd7032e92c9 100644 --- a/arch/x86/lib/timer.c +++ b/arch/x86/lib/timer.c @@ -35,15 +35,15 @@ struct timer_isr_function { timer_fnc_t *isr_func; }; -static struct timer_isr_function *first_timer_isr = NULL; -static volatile unsigned long system_ticks = 0; +static struct timer_isr_function *first_timer_isr; +static unsigned long system_ticks; /* * register_timer_isr() allows multiple architecture and board specific * functions to be called every millisecond. Keep the execution time of * each function as low as possible */ -int register_timer_isr (timer_fnc_t *isr_func) +int register_timer_isr(timer_fnc_t *isr_func) { struct timer_isr_function *new_func; struct timer_isr_function *temp; @@ -61,7 +61,7 @@ int register_timer_isr (timer_fnc_t *isr_func) * Don't allow timer interrupts while the * linked list is being modified */ - flag = disable_interrupts (); + flag = disable_interrupts(); if (first_timer_isr == NULL) { first_timer_isr = new_func; @@ -73,7 +73,7 @@ int register_timer_isr (timer_fnc_t *isr_func) } if (flag) - enable_interrupts (); + enable_interrupts(); return 0; } @@ -89,12 +89,12 @@ void timer_isr(void *unused) /* Execute each registered function */ while (temp != NULL) { - temp->isr_func (); + temp->isr_func(); temp = temp->next; } } -ulong get_timer (ulong base) +ulong get_timer(ulong base) { - return (system_ticks - base); + return system_ticks - base; } diff --git a/arch/x86/lib/video.c b/arch/x86/lib/video.c index 0efcf3f4530..3d6b24d6204 100644 --- a/arch/x86/lib/video.c +++ b/arch/x86/lib/video.c @@ -123,7 +123,7 @@ static void __video_putc(const char c, int *x, int *y) static void video_putc(const char c) { - int x,y,pos; + int x, y, pos; x = orig_x; y = orig_y; @@ -142,7 +142,7 @@ static void video_putc(const char c) static void video_puts(const char *s) { - int x,y,pos; + int x, y, pos; char c; x = orig_x; @@ -187,7 +187,7 @@ int video_init(void) printf("pos %x %d %d\n", pos, orig_x, orig_y); #endif if (orig_y > lines) - orig_x = orig_y =0; + orig_x = orig_y = 0; memset(&vga_dev, 0, sizeof(vga_dev)); strcpy(vga_dev.name, "vga"); diff --git a/arch/x86/lib/video_bios.c b/arch/x86/lib/video_bios.c index 7574f771fdd..1e06759d9eb 100644 --- a/arch/x86/lib/video_bios.c +++ b/arch/x86/lib/video_bios.c @@ -28,86 +28,55 @@ #include <asm/realmode.h> #include <asm/io.h> #include <asm/pci.h> +#include "bios.h" #undef PCI_BIOS_DEBUG #undef VGA_BIOS_DEBUG #ifdef VGA_BIOS_DEBUG -#define PRINTF(fmt,args...) printf (fmt ,##args) +#define PRINTF(fmt, args...) printf(fmt, ##args) #else -#define PRINTF(fmt,args...) +#define PRINTF(fmt, args...) #endif -#ifdef CONFIG_PCI +#define PCI_CLASS_VIDEO 3 +#define PCI_CLASS_VIDEO_STD 0 +#define PCI_CLASS_VIDEO_PROG_IF_VGA 0 -#ifdef PCI_BIOS_DEBUG -#define RELOC_16(seg, off) *(u32*)(seg << 4 | (u32)&off) -extern u32 num_pci_bios_present; -extern u32 num_pci_bios_find_device; -extern u32 num_pci_bios_find_class; -extern u32 num_pci_bios_generate_special_cycle; -extern u32 num_pci_bios_read_cfg_byte; -extern u32 num_pci_bios_read_cfg_word; -extern u32 num_pci_bios_read_cfg_dword; -extern u32 num_pci_bios_write_cfg_byte; -extern u32 num_pci_bios_write_cfg_word; -extern u32 num_pci_bios_write_cfg_dword; -extern u32 num_pci_bios_get_irq_routing; -extern u32 num_pci_bios_set_irq; -extern u32 num_pci_bios_unknown_function; - -void print_bios_bios_stat(void) -{ - printf("16 bit functions:\n"); - printf("pci_bios_present: %d\n", RELOC_16(0xf000, num_pci_bios_present)); - printf("pci_bios_find_device: %d\n", RELOC_16(0xf000, num_pci_bios_find_device)); - printf("pci_bios_find_class: %d\n", RELOC_16(0xf000, num_pci_bios_find_class)); - printf("pci_bios_generate_special_cycle: %d\n", RELOC_16(0xf000, num_pci_bios_generate_special_cycle)); - printf("pci_bios_read_cfg_byte: %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_byte)); - printf("pci_bios_read_cfg_word: %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_word)); - printf("pci_bios_read_cfg_dword: %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_dword)); - printf("pci_bios_write_cfg_byte: %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_byte)); - printf("pci_bios_write_cfg_word: %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_word)); - printf("pci_bios_write_cfg_dword: %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_dword)); - printf("pci_bios_get_irq_routing: %d\n", RELOC_16(0xf000, num_pci_bios_get_irq_routing)); - printf("pci_bios_set_irq: %d\n", RELOC_16(0xf000, num_pci_bios_set_irq)); - printf("pci_bios_unknown_function: %d\n", RELOC_16(0xf000, num_pci_bios_unknown_function)); - -} -#endif - -#ifdef CONFIG_VIDEO - -#define PCI_CLASS_VIDEO 3 -#define PCI_CLASS_VIDEO_STD 0 -#define PCI_CLASS_VIDEO_PROG_IF_VGA 0 - -static struct pci_device_id supported[] = { +DEFINE_PCI_DEVICE_TABLE(supported) = { {PCI_VIDEO_VENDOR_ID, PCI_VIDEO_DEVICE_ID}, {} }; static u32 probe_pci_video(void) { - pci_dev_t devbusfn; + struct pci_controller *hose; + pci_dev_t devbusfn = pci_find_devices(supported, 0); - if ((devbusfn = pci_find_devices(supported, 0) != -1)) { + if ((devbusfn != -1)) { u32 old; u32 addr; /* PCI video device detected */ printf("Found PCI VGA device at %02x.%02x.%x\n", - PCI_BUS(devbusfn), PCI_DEV(devbusfn), PCI_FUNC(devbusfn)); + PCI_BUS(devbusfn), + PCI_DEV(devbusfn), + PCI_FUNC(devbusfn)); /* Enable I/O decoding as well, PCI viudeo boards * support I/O accesses, but they provide no * bar register for this since the ports are fixed. */ - pci_write_config_word(devbusfn, PCI_COMMAND, PCI_COMMAND_MEMORY | PCI_COMMAND_IO | PCI_COMMAND_MASTER); + pci_write_config_word(devbusfn, + PCI_COMMAND, + PCI_COMMAND_MEMORY | + PCI_COMMAND_IO | + PCI_COMMAND_MASTER); /* Test the ROM decoder, do the device support a rom? */ pci_read_config_dword(devbusfn, PCI_ROM_ADDRESS, &old); - pci_write_config_dword(devbusfn, PCI_ROM_ADDRESS, (u32)PCI_ROM_ADDRESS_MASK); + pci_write_config_dword(devbusfn, PCI_ROM_ADDRESS, + (u32)PCI_ROM_ADDRESS_MASK); pci_read_config_dword(devbusfn, PCI_ROM_ADDRESS, &addr); pci_write_config_dword(devbusfn, PCI_ROM_ADDRESS, old); @@ -117,13 +86,14 @@ static u32 probe_pci_video(void) } /* device have a rom */ - if (pci_shadow_rom(devbusfn, (void*)0xc0000)) { + if (pci_shadow_rom(devbusfn, (void *)0xc0000)) { printf("Shadowing of PCI VGA BIOS failed\n"); return 0; } /* Now enable lagacy VGA port access */ - if (pci_enable_legacy_video_ports(pci_bus_to_hose(PCI_BUS(devbusfn)))) { + hose = pci_bus_to_hose(PCI_BUS(devbusfn)); + if (pci_enable_legacy_video_ports(hose)) { printf("PCI VGA enable failed\n"); return 0; } @@ -131,7 +101,7 @@ static u32 probe_pci_video(void) /* return the pci device info, that we'll need later */ return PCI_BUS(devbusfn) << 8 | - PCI_DEV(devbusfn) << 3 | (PCI_FUNC(devbusfn)&7); + PCI_DEV(devbusfn) << 3 | (PCI_FUNC(devbusfn) & 7); } return 0; @@ -142,13 +112,17 @@ static int probe_isa_video(void) u32 ptr; char *buf; - if (0 == (ptr = isa_map_rom(0xc0000, 0x8000))) { + ptr = isa_map_rom(0xc0000, 0x8000); + + if (!ptr) return -1; - } - if (NULL == (buf=malloc(0x8000))) { + + buf = malloc(0x8000); + if (!buf) { isa_unmap_rom(ptr); return -1; } + if (readw(ptr) != 0xaa55) { free(buf); isa_unmap_rom(ptr); @@ -156,9 +130,9 @@ static int probe_isa_video(void) } /* shadow the rom */ - memcpy(buf, (void*)ptr, 0x8000); + memcpy(buf, (void *)ptr, 0x8000); isa_unmap_rom(ptr); - memcpy((void*)0xc0000, buf, 0x8000); + memcpy((void *)0xc0000, buf, 0x8000); free(buf); @@ -168,35 +142,35 @@ static int probe_isa_video(void) int video_bios_init(void) { struct pt_regs regs; + int size; + int i; + u8 sum; /* clear the video bios area in case we warmbooted */ - memset((void*)0xc0000, 0, 0x8000); + memset((void *)0xc0000, 0, 0x8000); memset(®s, 0, sizeof(struct pt_regs)); - if (probe_isa_video()) { + if (probe_isa_video()) /* No ISA board found, try the PCI bus */ regs.eax = probe_pci_video(); - } /* Did we succeed in mapping any video bios */ if (readw(0xc0000) == 0xaa55) { - int size; - int i; - u8 sum; - PRINTF("Found video bios signature\n"); - size = 512*readb(0xc0002); + size = readb(0xc0002) * 512; PRINTF("size %d\n", size); - sum=0; - for (i=0;i<size;i++) { + sum = 0; + + for (i = 0; i < size; i++) sum += readb(0xc0000 + i); - } - PRINTF("Checksum is %sOK\n",sum?"NOT ":""); - if (sum) { + + PRINTF("Checksum is %sOK\n", sum ? "NOT " : ""); + + if (sum) return 1; - } - /* some video bioses (ATI Mach64) seem to think that + /* + * Some video bioses (ATI Mach64) seem to think that * the original int 10 handler is always at * 0xf000:0xf065 , place an iret instruction there */ @@ -205,18 +179,18 @@ int video_bios_init(void) regs.esp = 0x8000; regs.xss = 0x2000; enter_realmode(0xc000, 3, ®s, ®s); + PRINTF("INT 0x10 vector after: %04x:%04x\n", readw(0x42), readw(0x40)); - PRINTF("BIOS returned %scarry\n", regs.eflags & 1?"":"NOT "); + PRINTF("BIOS returned %scarry\n", + regs.eflags & 0x00000001 ? "" : "NOT "); #ifdef PCI_BIOS_DEBUG print_bios_bios_stat(); #endif - return (regs.eflags & 1); + return regs.eflags & 0x00000001; } return 1; } -#endif -#endif diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c index d2dd6fd4493..8b42b5cafa1 100644 --- a/arch/x86/lib/zimage.c +++ b/arch/x86/lib/zimage.c @@ -45,11 +45,11 @@ * 0x8000-0x8FFF Stack and heap * 0x9000-0x90FF Kernel command line */ -#define DEFAULT_SETUP_BASE 0x90000 -#define COMMAND_LINE_OFFSET 0x9000 -#define HEAP_END_OFFSET 0x8e00 +#define DEFAULT_SETUP_BASE 0x90000 +#define COMMAND_LINE_OFFSET 0x9000 +#define HEAP_END_OFFSET 0x8e00 -#define COMMAND_LINE_SIZE 2048 +#define COMMAND_LINE_SIZE 2048 static void build_command_line(char *command_line, int auto_boot) { @@ -60,23 +60,20 @@ static void build_command_line(char *command_line, int auto_boot) env_command_line = getenv("bootargs"); /* set console= argument if we use a serial console */ - if (NULL == strstr(env_command_line, "console=")) { - if (0==strcmp(getenv("stdout"), "serial")) { + if (!strstr(env_command_line, "console=")) { + if (!strcmp(getenv("stdout"), "serial")) { /* We seem to use serial console */ sprintf(command_line, "console=ttyS0,%s ", - getenv("baudrate")); + getenv("baudrate")); } } - if (auto_boot) { + if (auto_boot) strcat(command_line, "auto "); - } - if (NULL != env_command_line) { + if (env_command_line) strcat(command_line, env_command_line); - } - printf("Kernel command line: \"%s\"\n", command_line); } @@ -90,14 +87,16 @@ void *load_zimage(char *image, unsigned long kernel_size, int bootproto; int big_image; void *load_address; + struct setup_header *hdr; - struct setup_header *hdr = (struct setup_header *)(image + SETUP_SECTS_OFF); + hdr = (struct setup_header *)(image + SETUP_SECTS_OFF); - setup_base = (void*)DEFAULT_SETUP_BASE; /* base address for real-mode segment */ + /* base address for real-mode segment */ + setup_base = (void *)DEFAULT_SETUP_BASE; if (KERNEL_MAGIC != hdr->boot_flag) { printf("Error: Invalid Boot Flag (found 0x%04x, expected 0x%04x)\n", - hdr->boot_flag, KERNEL_MAGIC); + hdr->boot_flag, KERNEL_MAGIC); return 0; } else { printf("Valid Boot Flag\n"); @@ -124,43 +123,50 @@ void *load_zimage(char *image, unsigned long kernel_size, printf("Setup Size = 0x%8.8lx\n", (ulong)setup_size); - if (setup_size > SETUP_MAX_SIZE) { + if (setup_size > SETUP_MAX_SIZE) printf("Error: Setup is too large (%d bytes)\n", setup_size); - } /* Determine image type */ - big_image = (bootproto >= 0x0200) && (hdr->loadflags & BIG_KERNEL_FLAG); + big_image = (bootproto >= 0x0200) && + (hdr->loadflags & BIG_KERNEL_FLAG); /* Determine load address */ - load_address = (void*)(big_image ? BZIMAGE_LOAD_ADDR : ZIMAGE_LOAD_ADDR); + load_address = (void *)(big_image ? + BZIMAGE_LOAD_ADDR : + ZIMAGE_LOAD_ADDR); /* load setup */ - printf("Moving Real-Mode Code to 0x%8.8lx (%d bytes)\n", (ulong)setup_base, setup_size); + printf("Moving Real-Mode Code to 0x%8.8lx (%d bytes)\n", + (ulong)setup_base, setup_size); memmove(setup_base, image, setup_size); printf("Using boot protocol version %x.%02x\n", (bootproto & 0xff00) >> 8, bootproto & 0xff); if (bootproto == 0x0100) { + *(u16 *)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC; + *(u16 *)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; - *(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC; - *(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; - - /* A very old kernel MUST have its real-mode code - * loaded at 0x90000 */ - + /* + * A very old kernel MUST have its real-mode code + * loaded at 0x90000 + */ if ((u32)setup_base != 0x90000) { /* Copy the real-mode kernel */ - memmove((void*)0x90000, setup_base, setup_size); + memmove((void *)0x90000, setup_base, setup_size); + /* Copy the command line */ - memmove((void*)0x99000, setup_base+COMMAND_LINE_OFFSET, - COMMAND_LINE_SIZE); + memmove((void *)0x99000, + setup_base + COMMAND_LINE_OFFSET, + COMMAND_LINE_SIZE); - setup_base = (void*)0x90000; /* Relocated */ + /* Relocated */ + setup_base = (void *)0x90000; } /* It is recommended to clear memory up to the 32K mark */ - memset((void*)0x90000 + setup_size, 0, SETUP_MAX_SIZE-setup_size); + memset((void *)0x90000 + setup_size, 0, + SETUP_MAX_SIZE-setup_size); } /* We are now setting up the real-mode version of the header */ @@ -170,8 +176,9 @@ void *load_zimage(char *image, unsigned long kernel_size, hdr->type_of_loader = 8; if (hdr->setup_sects >= 15) - printf("Linux kernel version %s\n", (char *) - (setup_base + (hdr->kernel_version + 0x200))); + printf("Linux kernel version %s\n", + (char *)(setup_base + + (hdr->kernel_version + 0x200))); else printf("Setup Sectors < 15 - Cannot print kernel version.\n"); @@ -193,8 +200,8 @@ void *load_zimage(char *image, unsigned long kernel_size, hdr->cmd_line_ptr = (u32)setup_base + COMMAND_LINE_OFFSET; } else if (bootproto >= 0x0200) { - *(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC; - *(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; + *(u16 *)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC; + *(u16 *)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; hdr->setup_move_size = 0x9100; } @@ -221,8 +228,8 @@ void *load_zimage(char *image, unsigned long kernel_size, /* build command line at COMMAND_LINE_OFFSET */ build_command_line(setup_base + COMMAND_LINE_OFFSET, auto_boot); - printf("Loading %czImage at address 0x%08x (%ld bytes)\n", big_image ? 'b' : ' ', - (u32)load_address, kernel_size); + printf("Loading %czImage at address 0x%08x (%ld bytes)\n", + big_image ? 'b' : ' ', (u32)load_address, kernel_size); memmove(load_address, image + setup_size, kernel_size); @@ -241,10 +248,11 @@ void boot_zimage(void *setup_base) regs.xss = regs.xds; regs.esp = 0x9000; regs.eflags = 0; - enter_realmode(((u32)setup_base+SETUP_START_OFFSET)>>4, 0, ®s, ®s); + enter_realmode(((u32)setup_base+SETUP_START_OFFSET)>>4, 0, ®s, + ®s); } -int do_zboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +int do_zboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[]) { void *base_ptr; void *bzImage_addr = NULL; @@ -270,12 +278,12 @@ int do_zboot (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) bzImage_size = simple_strtoul(argv[2], NULL, 16); /* Lets look for*/ - base_ptr = load_zimage (bzImage_addr, bzImage_size, 0, 0, 0); + base_ptr = load_zimage(bzImage_addr, bzImage_size, 0, 0, 0); - if (NULL == base_ptr) { - printf ("## Kernel loading failed ...\n"); + if (!base_ptr) { + printf("## Kernel loading failed ...\n"); } else { - printf ("## Transferring control to Linux (at address %08x) ...\n", + printf("## Transferring control to Linux (at address %08x) ...\n", (u32)base_ptr); /* we assume that the kernel is in place */ |