diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/spear600.c | 23 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/spl.c | 74 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/spl_boot.c | 181 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/start.S | 3 | ||||
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds | 54 |
6 files changed, 73 insertions, 264 deletions
diff --git a/arch/arm/cpu/arm926ejs/spear/Makefile b/arch/arm/cpu/arm926ejs/spear/Makefile index 3f190bc..7b15d4e 100644 --- a/arch/arm/cpu/arm926ejs/spear/Makefile +++ b/arch/arm/cpu/arm926ejs/spear/Makefile @@ -10,7 +10,7 @@ obj-y := cpu.o \ timer.o ifdef CONFIG_SPL_BUILD -obj-y += spl.o spl_boot.o +obj-y += spl.o obj-$(CONFIG_SPEAR600) += spear600.o obj-$(CONFIG_DDR_MT47H64M16) += spr600_mt47h64m16_3_333_cl5_psync.o obj-$(CONFIG_DDR_MT47H32M16) += spr600_mt47h32m16_333_cl5_psync.o diff --git a/arch/arm/cpu/arm926ejs/spear/spear600.c b/arch/arm/cpu/arm926ejs/spear/spear600.c index 6474e9d..1fdf715 100644 --- a/arch/arm/cpu/arm926ejs/spear/spear600.c +++ b/arch/arm/cpu/arm926ejs/spear/spear600.c @@ -12,6 +12,21 @@ #include <asm/arch/spr_misc.h> #include <asm/arch/spr_defs.h> +void spear_late_init(void) +{ + struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE; + + writel(0x80000007, &misc_p->arb_icm_ml1); + writel(0x80000007, &misc_p->arb_icm_ml2); + writel(0x80000007, &misc_p->arb_icm_ml3); + writel(0x80000007, &misc_p->arb_icm_ml4); + writel(0x80000007, &misc_p->arb_icm_ml5); + writel(0x80000007, &misc_p->arb_icm_ml6); + writel(0x80000007, &misc_p->arb_icm_ml7); + writel(0x80000007, &misc_p->arb_icm_ml8); + writel(0x80000007, &misc_p->arb_icm_ml9); +} + static void sel_1v8(void) { struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE; @@ -104,14 +119,6 @@ void plat_ddr_init(void) } /* - * soc_init: - */ -void soc_init(void) -{ - /* Nothing to be done for SPEAr600 */ -} - -/* * xxx_boot_selected: * * return true if the particular booting option is selected diff --git a/arch/arm/cpu/arm926ejs/spear/spl.c b/arch/arm/cpu/arm926ejs/spear/spl.c index b550404..a60f583 100644 --- a/arch/arm/cpu/arm926ejs/spear/spl.c +++ b/arch/arm/cpu/arm926ejs/spear/spl.c @@ -8,12 +8,14 @@ */ #include <common.h> +#include <spl.h> #include <version.h> #include <asm/io.h> #include <asm/arch/hardware.h> #include <asm/arch/spr_defs.h> #include <asm/arch/spr_misc.h> #include <asm/arch/spr_syscntl.h> +#include <linux/mtd/st_smi.h> static void ddr_clock_init(void) { @@ -205,55 +207,51 @@ int get_socrev(void) #endif } -void lowlevel_init(void) +/* + * SNOR (Serial NOR flash) related functions + */ +static void snor_init(void) +{ + struct smi_regs *const smicntl = + (struct smi_regs * const)CONFIG_SYS_SMI_BASE; + + /* Setting the fast mode values. SMI working at 166/4 = 41.5 MHz */ + writel(HOLD1 | FAST_MODE | BANK_EN | DSEL_TIME | PRESCAL4, + &smicntl->smi_cr1); +} + +u32 spl_boot_device(void) +{ + u32 mode; + + /* Currently only SNOR is supported as the only */ + if (snor_boot_selected()) { + /* SNOR-SMI initialization */ + snor_init(); + + mode = BOOT_DEVICE_NOR; + } + + return mode; +} + +void board_init_f(ulong dummy) { struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE; - const char *u_boot_rev = U_BOOT_VERSION; /* Initialize PLLs */ sys_init(); - /* Initialize UART */ - serial_init(); - - /* Print U-Boot SPL version string */ - serial_puts("\nU-Boot SPL "); - /* Avoid a second "U-Boot" coming from this string */ - u_boot_rev = &u_boot_rev[7]; - serial_puts(u_boot_rev); - serial_puts(" ("); - serial_puts(U_BOOT_DATE); - serial_puts(" - "); - serial_puts(U_BOOT_TIME); - serial_puts(")\n"); - -#if defined(CONFIG_OS_BOOT) - writel(readl(&misc_p->periph1_clken) | PERIPH_UART1, - &misc_p->periph1_clken); -#endif + preloader_console_init(); + arch_cpu_init(); /* Enable IPs (release reset) */ writel(PERIPH_RST_ALL, &misc_p->periph1_rst); /* Initialize MPMC */ - serial_puts("Configure DDR\n"); + puts("Configure DDR\n"); mpmc_init(); + spear_late_init(); - /* SoC specific initialization */ - soc_init(); -} - -void spear_late_init(void) -{ - struct misc_regs *misc_p = (struct misc_regs *)CONFIG_SPEAR_MISCBASE; - - writel(0x80000007, &misc_p->arb_icm_ml1); - writel(0x80000007, &misc_p->arb_icm_ml2); - writel(0x80000007, &misc_p->arb_icm_ml3); - writel(0x80000007, &misc_p->arb_icm_ml4); - writel(0x80000007, &misc_p->arb_icm_ml5); - writel(0x80000007, &misc_p->arb_icm_ml6); - writel(0x80000007, &misc_p->arb_icm_ml7); - writel(0x80000007, &misc_p->arb_icm_ml8); - writel(0x80000007, &misc_p->arb_icm_ml9); + board_init_r(NULL, 0); } diff --git a/arch/arm/cpu/arm926ejs/spear/spl_boot.c b/arch/arm/cpu/arm926ejs/spear/spl_boot.c deleted file mode 100644 index c846d75..0000000 --- a/arch/arm/cpu/arm926ejs/spear/spl_boot.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * (C) Copyright 2000-2009 - * Vipin Kumar, ST Microelectronics, vipin.kumar@st.com - * - * Copyright (C) 2012 Stefan Roese <sr@denx.de> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <image.h> -#include <linux/compiler.h> -#include <asm/io.h> -#include <asm/arch/spr_defs.h> -#include <linux/mtd/st_smi.h> - -static const char kernel_name[] = "Linux"; -static const char loader_name[] = "U-Boot"; - -int image_check_header(image_header_t *hdr, const char *name) -{ - if (image_check_magic(hdr) && - (!strncmp(image_get_name(hdr), name, strlen(name))) && - image_check_hcrc(hdr)) { - return 1; - } - return 0; -} - -int image_check_data(image_header_t *hdr) -{ - if (image_check_dcrc(hdr)) - return 1; - - return 0; -} - -/* - * SNOR (Serial NOR flash) related functions - */ -void snor_init(void) -{ - struct smi_regs *const smicntl = - (struct smi_regs * const)CONFIG_SYS_SMI_BASE; - - /* Setting the fast mode values. SMI working at 166/4 = 41.5 MHz */ - writel(HOLD1 | FAST_MODE | BANK_EN | DSEL_TIME | PRESCAL4, - &smicntl->smi_cr1); -} - -static int snor_image_load(u8 *load_addr, void (**image_p)(void), - const char *image_name) -{ - image_header_t *header; - - /* - * Since calculating the crc in the SNOR flash does not - * work, we copy the image to the destination address - * minus the header size. And point the header to this - * new destination. This will not work for address 0 - * of course. - */ - header = (image_header_t *)load_addr; - memcpy((ulong *)(image_get_load(header) - sizeof(image_header_t)), - (const ulong *)load_addr, - image_get_data_size(header) + sizeof(image_header_t)); - header = (image_header_t *)(image_get_load(header) - - sizeof(image_header_t)); - - if (image_check_header(header, image_name)) { - if (image_check_data(header)) { - /* Jump to boot image */ - *image_p = (void *)image_get_load(header); - return 1; - } - } - - return 0; -} - -static void boot_image(void (*image)(void)) -{ - void (*funcp)(void) __noreturn = (void *)image; - - (*funcp)(); -} - -/* - * spl_boot: - * - * All supported booting types of all supported SoCs are listed here. - * Generic readback APIs are provided for each supported booting type - * eg. nand_read_skip_bad - */ -u32 spl_boot(void) -{ - void (*image)(void); - -#ifdef CONFIG_SPEAR_USBTTY - plat_late_init(); - return 1; -#endif - - /* - * All the supported booting devices are listed here. Each of - * the booting type supported by the platform would define the - * macro xxx_BOOT_SUPPORTED to true. - */ - - if (SNOR_BOOT_SUPPORTED && snor_boot_selected()) { - /* SNOR-SMI initialization */ - snor_init(); - - serial_puts("Booting via SNOR\n"); - /* Serial NOR booting */ - if (1 == snor_image_load((u8 *)CONFIG_SYS_UBOOT_BASE, - &image, loader_name)) { - /* Platform related late initialasations */ - plat_late_init(); - - /* Jump to boot image */ - serial_puts("Jumping to U-Boot\n"); - boot_image(image); - return 1; - } - } - - if (NAND_BOOT_SUPPORTED && nand_boot_selected()) { - /* NAND booting */ - /* Not ported from XLoader to SPL yet */ - return 0; - } - - if (PNOR_BOOT_SUPPORTED && pnor_boot_selected()) { - /* PNOR booting */ - /* Not ported from XLoader to SPL yet */ - return 0; - } - - if (MMC_BOOT_SUPPORTED && mmc_boot_selected()) { - /* MMC booting */ - /* Not ported from XLoader to SPL yet */ - return 0; - } - - if (SPI_BOOT_SUPPORTED && spi_boot_selected()) { - /* SPI booting */ - /* Not supported for any platform as of now */ - return 0; - } - - if (I2C_BOOT_SUPPORTED && i2c_boot_selected()) { - /* I2C booting */ - /* Not supported for any platform as of now */ - return 0; - } - - /* - * All booting types without memory are listed as below - * Control has to be returned to BootROM in case of all - * the following booting scenarios - */ - - if (USB_BOOT_SUPPORTED && usb_boot_selected()) { - plat_late_init(); - return 1; - } - - if (TFTP_BOOT_SUPPORTED && tftp_boot_selected()) { - plat_late_init(); - return 1; - } - - if (UART_BOOT_SUPPORTED && uart_boot_selected()) { - plat_late_init(); - return 1; - } - - /* Ideally, the control should not reach here. */ - hang(); -} diff --git a/arch/arm/cpu/arm926ejs/spear/start.S b/arch/arm/cpu/arm926ejs/spear/start.S index 290ac2e..f392e7b 100644 --- a/arch/arm/cpu/arm926ejs/spear/start.S +++ b/arch/arm/cpu/arm926ejs/spear/start.S @@ -45,7 +45,6 @@ reset: * BSS area lies in the DDR location which is not yet initialized * bss is assumed to be uninitialized. */ - bl spl_boot ldmia sp!, {r0-r12,pc} /* @@ -77,5 +76,5 @@ cpu_init_crit: * Go setup Memory and board specific bits prior to relocation. */ stmdb sp!, {lr} - bl lowlevel_init /* go setup pll,mux,memory */ + bl _main /* _main will call board_init_f */ ldmia sp!, {pc} diff --git a/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds b/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds index c7ee199..47910d3 100644 --- a/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds +++ b/arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds @@ -1,4 +1,6 @@ /* + * Copyright (C) 2015 Stefan Roese <sr@denx.de> + * * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> * on behalf of DENX Software Engineering GmbH * @@ -11,59 +13,43 @@ * SPDX-License-Identifier: GPL-2.0+ */ +MEMORY { .sram : ORIGIN = CONFIG_SPL_TEXT_BASE,\ + LENGTH = CONFIG_SPL_MAX_SIZE } + OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") OUTPUT_ARCH(arm) ENTRY(_start) SECTIONS { - . = 0x00000000; - - . = ALIGN(4); - .text : + .text : { + __start = .; *(.vectors) - arch/arm/cpu/arm926ejs/spear/start.o (.text*) + CPUDIR/spear/start.o (.text*) *(.text*) - } + } > .sram . = ALIGN(4); - .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } + .rodata : { *(SORT_BY_ALIGNMENT(.rodata*)) } >.sram . = ALIGN(4); - .data : { - *(.data*) - } + .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram . = ALIGN(4); + .u_boot_list : { + KEEP(*(SORT(.u_boot_list*))); + } > .sram - .rel.dyn : { - __rel_dyn_start = .; - *(.rel*) - __rel_dyn_end = .; - } + . = ALIGN(4); + __image_copy_end = .; + _end = .; - .bss : { + .bss : + { . = ALIGN(4); __bss_start = .; *(.bss*) . = ALIGN(4); __bss_end = .; - } - - .end : - { - *(.__end) - } - - _image_binary_end = .; - - .dynsym _image_binary_end : { *(.dynsym) } - .dynbss : { *(.dynbss) } - .dynstr : { *(.dynstr*) } - .dynamic : { *(.dynamic*) } - .hash : { *(.hash*) } - .plt : { *(.plt*) } - .interp : { *(.interp*) } - .gnu : { *(.gnu*) } - .ARM.exidx : { *(.ARM.exidx*) } + } > .sram } |