diff options
Diffstat (limited to 'board/cirrus/edb93xx/edb93xx.c')
| -rw-r--r-- | board/cirrus/edb93xx/edb93xx.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/board/cirrus/edb93xx/edb93xx.c b/board/cirrus/edb93xx/edb93xx.c deleted file mode 100644 index 7a7f62fe88..0000000000 --- a/board/cirrus/edb93xx/edb93xx.c +++ /dev/null @@ -1,292 +0,0 @@ -// 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; -} |