diff options
author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/board/cirrus | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/board/cirrus')
-rw-r--r-- | roms/u-boot/board/cirrus/edb93xx/Kconfig | 15 | ||||
-rw-r--r-- | roms/u-boot/board/cirrus/edb93xx/MAINTAINERS | 6 | ||||
-rw-r--r-- | roms/u-boot/board/cirrus/edb93xx/Makefile | 10 | ||||
-rw-r--r-- | roms/u-boot/board/cirrus/edb93xx/edb93xx.c | 292 | ||||
-rw-r--r-- | roms/u-boot/board/cirrus/edb93xx/u-boot.lds | 115 |
5 files changed, 438 insertions, 0 deletions
diff --git a/roms/u-boot/board/cirrus/edb93xx/Kconfig b/roms/u-boot/board/cirrus/edb93xx/Kconfig new file mode 100644 index 000000000..c5f4897f8 --- /dev/null +++ b/roms/u-boot/board/cirrus/edb93xx/Kconfig @@ -0,0 +1,15 @@ +if TARGET_EDB93XX + +config SYS_BOARD + default "edb93xx" + +config SYS_VENDOR + default "cirrus" + +config SYS_SOC + default "ep93xx" + +config SYS_CONFIG_NAME + default "edb93xx" + +endif diff --git a/roms/u-boot/board/cirrus/edb93xx/MAINTAINERS b/roms/u-boot/board/cirrus/edb93xx/MAINTAINERS new file mode 100644 index 000000000..3bb284335 --- /dev/null +++ b/roms/u-boot/board/cirrus/edb93xx/MAINTAINERS @@ -0,0 +1,6 @@ +EDB93XX BOARD +M: Sergey Kostanbaev <sergey.kostanbaev@fairwaves.ru> +S: Maintained +F: board/cirrus/edb93xx/ +F: include/configs/edb93xx.h +F: configs/edb9315a_defconfig diff --git a/roms/u-boot/board/cirrus/edb93xx/Makefile b/roms/u-boot/board/cirrus/edb93xx/Makefile new file mode 100644 index 000000000..0cf04b13b --- /dev/null +++ b/roms/u-boot/board/cirrus/edb93xx/Makefile @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# (C) Copyright 2013 +# Sergey Kostanbaev <sergey.kostanbaev <at> fairwaves.ru> +# +# (C) Copyright 2003-2006 +# Wolfgang Denk, DENX Software Engineering, wd <at> denx.de. +# + +obj-y := edb93xx.o diff --git a/roms/u-boot/board/cirrus/edb93xx/edb93xx.c b/roms/u-boot/board/cirrus/edb93xx/edb93xx.c new file mode 100644 index 000000000..7a7f62fe8 --- /dev/null +++ b/roms/u-boot/board/cirrus/edb93xx/edb93xx.c @@ -0,0 +1,292 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Board initialization for EP93xx + * + * Copyright (C) 2013 + * Sergey Kostanbaev <sergey.kostanbaev <at> fairwaves.ru> + * + * Copyright (C) 2009 + * Matthias Kaehlcke <matthias <at> kaehlcke.net> + * + * (C) Copyright 2002 2003 + * Network Audio Technologies, Inc. <www.netaudiotech.com> + * Adam Bezanson <bezanson <at> netaudiotech.com> + */ + +#include <config.h> +#include <common.h> +#include <cpu_func.h> +#include <init.h> +#include <irq_func.h> +#include <net.h> +#include <netdev.h> +#include <status_led.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/mach-types.h> +#include <asm/arch/ep93xx.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * usb_div: 4, nbyp2: 1, pll2_en: 1 + * pll2_x1: 368640000.000000, pll2_x2ip: 15360000.000000, + * pll2_x2: 384000000.000000, pll2_out: 192000000.000000 + */ +#define CLKSET2_VAL (23 << SYSCON_CLKSET_PLL_X2IPD_SHIFT | \ + 24 << SYSCON_CLKSET_PLL_X2FBD2_SHIFT | \ + 24 << SYSCON_CLKSET_PLL_X1FBD1_SHIFT | \ + 1 << SYSCON_CLKSET_PLL_PS_SHIFT | \ + SYSCON_CLKSET2_PLL2_EN | \ + SYSCON_CLKSET2_NBYP2 | \ + 3 << SYSCON_CLKSET2_USB_DIV_SHIFT) + +#define SMC_BCR6_VALUE (2 << SMC_BCR_IDCY_SHIFT | 5 << SMC_BCR_WST1_SHIFT | \ + SMC_BCR_BLE | 2 << SMC_BCR_WST2_SHIFT | \ + 1 << SMC_BCR_MW_SHIFT) + +/* delay execution before timers are initialized */ +static inline void early_udelay(uint32_t usecs) +{ + /* loop takes 4 cycles at 5.0ns (fastest case, running at 200MHz) */ + register uint32_t loops = (usecs * 1000) / 20; + + __asm__ volatile ("1:\n" + "subs %0, %1, #1\n" + "bne 1b" : "=r" (loops) : "0" (loops)); +} + +#ifndef CONFIG_EP93XX_NO_FLASH_CFG +static void flash_cfg(void) +{ + struct smc_regs *smc = (struct smc_regs *)SMC_BASE; + + writel(SMC_BCR6_VALUE, &smc->bcr6); +} +#else +#define flash_cfg() +#endif + +int board_init(void) +{ + /* + * Setup PLL2, PPL1 has been set during lowlevel init + */ + struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; + writel(CLKSET2_VAL, &syscon->clkset2); + + /* + * the user's guide recommends to wait at least 1 ms for PLL2 to + * stabilize + */ + early_udelay(1000); + + /* Go to Async mode */ + __asm__ volatile ("mrc p15, 0, r0, c1, c0, 0"); + __asm__ volatile ("orr r0, r0, #0xc0000000"); + __asm__ volatile ("mcr p15, 0, r0, c1, c0, 0"); + + icache_enable(); + +#ifdef USE_920T_MMU + dcache_enable(); +#endif + + /* Machine number, as defined in linux/arch/arm/tools/mach-types */ + gd->bd->bi_arch_number = CONFIG_MACH_TYPE; + + /* adress of boot parameters */ + gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR; + + /* We have a console */ + gd->have_console = 1; + + enable_interrupts(); + + flash_cfg(); + + green_led_on(); + red_led_off(); + + return 0; +} + +int board_early_init_f(void) +{ + /* + * set UARTBAUD bit to drive UARTs with 14.7456MHz instead of + * 14.7456/2 MHz + */ + struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; + writel(SYSCON_PWRCNT_UART_BAUD, &syscon->pwrcnt); + return 0; +} + +int board_eth_init(struct bd_info *bd) +{ + return ep93xx_eth_initialize(0, MAC_BASE); +} + +static void dram_fill_bank_addr(unsigned dram_addr_mask, unsigned dram_bank_cnt, + unsigned dram_bank_base[CONFIG_NR_DRAM_BANKS]) +{ + if (dram_bank_cnt == 1) { + dram_bank_base[0] = PHYS_SDRAM_1; + } else { + /* Table lookup for holes in address space. Maximum memory + * for the single SDCS may be up to 256Mb. We start scanning + * banks from 1Mb, so it could be up to 128 banks theoretically. + * We need at maximum 7 bits for the loockup, 8 slots is + * enough for the worst case. + */ + unsigned tbl[8]; + unsigned i = dram_bank_cnt / 2; + unsigned j = 0x00100000; /* 1 Mb */ + unsigned *ptbl = tbl; + do { + while (!(dram_addr_mask & j)) { + j <<= 1; + } + *ptbl++ = j; + j <<= 1; + i >>= 1; + } while (i != 0); + + for (i = dram_bank_cnt, j = 0; + (i != 0) && (j < CONFIG_NR_DRAM_BANKS); --i, ++j) { + unsigned addr = PHYS_SDRAM_1; + unsigned k; + unsigned bit; + + for (k = 0, bit = 1; k < 8; k++, bit <<= 1) { + if (bit & j) + addr |= tbl[k]; + } + + dram_bank_base[j] = addr; + } + } +} + +/* called in board_init_f (before relocation) */ +static unsigned dram_init_banksize_int(int print) +{ + /* + * Collect information of banks that has been filled during lowlevel + * initialization + */ + unsigned i; + unsigned dram_bank_base[CONFIG_NR_DRAM_BANKS]; + unsigned dram_total = 0; + unsigned dram_bank_size = *(unsigned *) + (PHYS_SDRAM_1 | UBOOT_MEMORYCNF_BANK_SIZE); + unsigned dram_addr_mask = *(unsigned *) + (PHYS_SDRAM_1 | UBOOT_MEMORYCNF_BANK_MASK); + unsigned dram_bank_cnt = *(unsigned *) + (PHYS_SDRAM_1 | UBOOT_MEMORYCNF_BANK_COUNT); + + dram_fill_bank_addr(dram_addr_mask, dram_bank_cnt, dram_bank_base); + + for (i = 0; i < dram_bank_cnt; i++) { + gd->bd->bi_dram[i].start = dram_bank_base[i]; + gd->bd->bi_dram[i].size = dram_bank_size; + dram_total += dram_bank_size; + } + for (; i < CONFIG_NR_DRAM_BANKS; i++) { + gd->bd->bi_dram[i].start = 0; + gd->bd->bi_dram[i].size = 0; + } + + if (print) { + printf("DRAM mask: %08x\n", dram_addr_mask); + printf("DRAM total %u banks:\n", dram_bank_cnt); + printf("bank base-address size\n"); + + if (dram_bank_cnt > CONFIG_NR_DRAM_BANKS) { + printf("WARNING! UBoot was configured for %u banks,\n" + "but %u has been found. " + "Supressing extra memory banks\n", + CONFIG_NR_DRAM_BANKS, dram_bank_cnt); + dram_bank_cnt = CONFIG_NR_DRAM_BANKS; + } + + for (i = 0; i < dram_bank_cnt; i++) { + printf(" %u %08x %08x\n", + i, dram_bank_base[i], dram_bank_size); + } + printf(" ------------------------------------------\n" + "Total %9d\n\n", + dram_total); + } + + return dram_total; +} + +int dram_init_banksize(void) +{ + dram_init_banksize_int(0); + + return 0; +} + +/* called in board_init_f (before relocation) */ +int dram_init(void) +{ + struct syscon_regs *syscon = (struct syscon_regs *)SYSCON_BASE; + unsigned sec_id = readl(SECURITY_EXTENSIONID); + unsigned chip_id = readl(&syscon->chipid); + + printf("CPU: Cirrus Logic "); + switch (sec_id & 0x000001FE) { + case 0x00000008: + printf("EP9301"); + break; + case 0x00000004: + printf("EP9307"); + break; + case 0x00000002: + printf("EP931x"); + break; + case 0x00000000: + printf("EP9315"); + break; + default: + printf("<unknown>"); + break; + } + + printf(" - Rev. "); + switch (chip_id & 0xF0000000) { + case 0x00000000: + printf("A"); + break; + case 0x10000000: + printf("B"); + break; + case 0x20000000: + printf("C"); + break; + case 0x30000000: + printf("D0"); + break; + case 0x40000000: + printf("D1"); + break; + case 0x50000000: + printf("E0"); + break; + case 0x60000000: + printf("E1"); + break; + case 0x70000000: + printf("E2"); + break; + default: + printf("?"); + break; + } + printf(" (SecExtID=%.8x/ChipID=%.8x)\n", sec_id, chip_id); + + gd->ram_size = dram_init_banksize_int(1); + return 0; +} diff --git a/roms/u-boot/board/cirrus/edb93xx/u-boot.lds b/roms/u-boot/board/cirrus/edb93xx/u-boot.lds new file mode 100644 index 000000000..db45c00e1 --- /dev/null +++ b/roms/u-boot/board/cirrus/edb93xx/u-boot.lds @@ -0,0 +1,115 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * + * Copyright (C) 2013 + * Sergey Kostanbaev <sergey.kostanbaev <at> fairwaves.ru> + * + * Copyright (c) 2004-2008 Texas Instruments + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de> + */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : { + *(.__image_copy_start) + *(.vectors) + arch/arm/cpu/arm920t/start.o (.text*) + . = 0x1000; + + LONG(0x53555243) + *(.text*) + } + + . = ALIGN(4); + .rodata : { *(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*))) } + + . = ALIGN(4); + .data : { + *(.data*) + } + + . = ALIGN(4); + + . = .; + + . = ALIGN(4); + .u_boot_list : { + KEEP(*(SORT(.u_boot_list*))); + } + + . = ALIGN(4); + + .image_copy_end : + { + *(.__image_copy_end) + } + + .rel_dyn_start : + { + *(.__rel_dyn_start) + } + + .rel.dyn : { + *(.rel*) + } + + .rel_dyn_end : + { + *(.__rel_dyn_end) + } + + .end : + { + *(.__end) + } + + _image_binary_end = .; + + /* + * Deprecated: this MMU section is used by pxa at present but + * should not be used by new boards/CPUs. + */ + . = ALIGN(4096); + .mmutable : { + *(.mmutable) + } + +/* + * Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c + * __bss_base and __bss_limit are for linker only (overlay ordering) + */ + + .bss_start __rel_dyn_start (OVERLAY) : { + KEEP(*(.__bss_start)); + __bss_base = .; + } + + .bss __bss_base (OVERLAY) : { + *(.bss*) + . = ALIGN(4); + __bss_limit = .; + } + + .bss_end __bss_limit (OVERLAY) : { + KEEP(*(.__bss_end)); + } + + .dynsym _image_binary_end : { *(.dynsym) } + .dynbss : { *(.dynbss) } + .dynstr : { *(.dynstr*) } + .dynamic : { *(.dynamic*) } + .plt : { *(.plt*) } + .interp : { *(.interp*) } + .gnu.hash : { *(.gnu.hash) } + .gnu : { *(.gnu*) } + .ARM.exidx : { *(.ARM.exidx*) } + .gnu.linkonce.armexidx : { *(.gnu.linkonce.armexidx.*) } +} |