diff options
Diffstat (limited to 'qemu/roms/u-boot/board/v38b/v38b.c')
| -rw-r--r-- | qemu/roms/u-boot/board/v38b/v38b.c | 260 |
1 files changed, 0 insertions, 260 deletions
diff --git a/qemu/roms/u-boot/board/v38b/v38b.c b/qemu/roms/u-boot/board/v38b/v38b.c deleted file mode 100644 index a33772991..000000000 --- a/qemu/roms/u-boot/board/v38b/v38b.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * (C) Copyright 2003-2006 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2004 - * Mark Jonas, Freescale Semiconductor, mark.jonas@motorola.com. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <mpc5xxx.h> -#include <net.h> -#include <asm/processor.h> - - -#ifndef CONFIG_SYS_RAMBOOT -static void sdram_start(int hi_addr) -{ - long hi_addr_bit = hi_addr ? 0x01000000 : 0; - - /* unlock mode register */ - *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000000 | hi_addr_bit; - __asm__ volatile ("sync"); - - /* precharge all banks */ - *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; - __asm__ volatile ("sync"); - -#if SDRAM_DDR - /* set mode register: extended mode */ - *(vu_long *) MPC5XXX_SDRAM_MODE = SDRAM_EMODE; - __asm__ volatile ("sync"); - - /* set mode register: reset DLL */ - *(vu_long *) MPC5XXX_SDRAM_MODE = SDRAM_MODE | 0x04000000; - __asm__ volatile ("sync"); -#endif /* SDRAM_DDR */ - - /* precharge all banks */ - *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000002 | hi_addr_bit; - __asm__ volatile ("sync"); - - /* auto refresh */ - *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | 0x80000004 | hi_addr_bit; - __asm__ volatile ("sync"); - - /* set mode register */ - *(vu_long *) MPC5XXX_SDRAM_MODE = SDRAM_MODE; - __asm__ volatile ("sync"); - - /* normal operation */ - *(vu_long *) MPC5XXX_SDRAM_CTRL = SDRAM_CONTROL | hi_addr_bit; - __asm__ volatile ("sync"); -} -#endif /* !CONFIG_SYS_RAMBOOT */ - - -phys_size_t initdram(int board_type) -{ - ulong dramsize = 0; - ulong dramsize2 = 0; - uint svr, pvr; - -#ifndef CONFIG_SYS_RAMBOOT - ulong test1, test2; - - /* setup SDRAM chip selects */ - *(vu_long *) MPC5XXX_SDRAM_CS0CFG = 0x0000001e; /* 2G at 0x0 */ - *(vu_long *) MPC5XXX_SDRAM_CS1CFG = 0x80000000; /* disabled */ - __asm__ volatile ("sync"); - - /* setup config registers */ - *(vu_long *) MPC5XXX_SDRAM_CONFIG1 = SDRAM_CONFIG1; - *(vu_long *) MPC5XXX_SDRAM_CONFIG2 = SDRAM_CONFIG2; - __asm__ volatile ("sync"); - -#if SDRAM_DDR - /* set tap delay */ - *(vu_long *) MPC5XXX_CDM_PORCFG = SDRAM_TAPDELAY; - __asm__ volatile ("sync"); -#endif /* SDRAM_DDR */ - - /* find RAM size using SDRAM CS0 only */ - sdram_start(0); - test1 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); - sdram_start(1); - test2 = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, 0x80000000); - if (test1 > test2) { - sdram_start(0); - dramsize = test1; - } else - dramsize = test2; - - /* memory smaller than 1MB is impossible */ - if (dramsize < (1 << 20)) - dramsize = 0; - - /* set SDRAM CS0 size according to the amount of RAM found */ - if (dramsize > 0) - *(vu_long *) MPC5XXX_SDRAM_CS0CFG = 0x13 + __builtin_ffs(dramsize >> 20) - 1; - else - *(vu_long *) MPC5XXX_SDRAM_CS0CFG = 0; /* disabled */ - - /* let SDRAM CS1 start right after CS0 */ - *(vu_long *) MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */ - - /* find RAM size using SDRAM CS1 only */ - if (!dramsize) - sdram_start(0); - test2 = test1 = get_ram_size((long *) (CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000); - if (!dramsize) { - sdram_start(1); - test2 = get_ram_size((long *) (CONFIG_SYS_SDRAM_BASE + dramsize), 0x80000000); - } - if (test1 > test2) { - sdram_start(0); - dramsize2 = test1; - } else - dramsize2 = test2; - - /* memory smaller than 1MB is impossible */ - if (dramsize2 < (1 << 20)) - dramsize2 = 0; - - /* set SDRAM CS1 size according to the amount of RAM found */ - if (dramsize2 > 0) - *(vu_long *) MPC5XXX_SDRAM_CS1CFG = dramsize - | (0x13 + __builtin_ffs(dramsize2 >> 20) - 1); - else - *(vu_long *) MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */ - -#else /* CONFIG_SYS_RAMBOOT */ - - /* retrieve size of memory connected to SDRAM CS0 */ - dramsize = *(vu_long *) MPC5XXX_SDRAM_CS0CFG & 0xFF; - if (dramsize >= 0x13) - dramsize = (1 << (dramsize - 0x13)) << 20; - else - dramsize = 0; - - /* retrieve size of memory connected to SDRAM CS1 */ - dramsize2 = *(vu_long *) MPC5XXX_SDRAM_CS1CFG & 0xFF; - if (dramsize2 >= 0x13) - dramsize2 = (1 << (dramsize2 - 0x13)) << 20; - else - dramsize2 = 0; - -#endif /* CONFIG_SYS_RAMBOOT */ - - /* - * On MPC5200B we need to set the special configuration delay in the - * DDR controller. Please refer to Freescale's AN3221 "MPC5200B SDRAM - * Initialization and Configuration", 3.3.1 SDelay--MBAR + 0x0190: - * - * "The SDelay should be written to a value of 0x00000004. It is - * required to account for changes caused by normal wafer processing - * parameters." - */ - svr = get_svr(); - pvr = get_pvr(); - if ((SVR_MJREV(svr) >= 2) && - (PVR_MAJ(pvr) == 1) && (PVR_MIN(pvr) == 4)) { - - *(vu_long *) MPC5XXX_SDRAM_SDELAY = 0x04; - __asm__ volatile ("sync"); - } - - return dramsize + dramsize2; -} - - -int checkboard (void) -{ - puts("Board: MarelV38B\n"); - return 0; -} - -int board_early_init_f(void) -{ -#ifdef CONFIG_HW_WATCHDOG - /* - * Enable and configure the direction (output) of PSC3_9 - watchdog - * reset input. Refer to 7.3.2.2.[1,3,4] of the MPC5200B User's - * Manual. - */ - *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC3_9; - *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC3_9; -#endif /* CONFIG_HW_WATCHDOG */ - return 0; -} - -int board_early_init_r(void) -{ - /* - * Now, when we are in RAM, enable flash write access for the - * detection process. Note that CS_BOOT cannot be cleared when - * executing in flash. - */ - *(vu_long *) MPC5XXX_BOOTCS_CFG &= ~0x1; /* clear RO */ - - /* - * Enable GPIO_WKUP_7 to "read the status of the actual power - * situation". Default direction is input, so no need to set it - * explicitly. - */ - *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_WKUP_7; - return 0; -} - -extern void board_get_enetaddr(uchar *enetaddr); -int misc_init_r(void) -{ - uchar enetaddr[6]; - - if (!eth_getenv_enetaddr("ethaddr", enetaddr)) { - board_get_enetaddr(enetaddr); - eth_setenv_enetaddr("ethaddr", enetaddr); - } - - return 0; -} - -#if defined(CONFIG_CMD_IDE) && defined(CONFIG_IDE_RESET) -void init_ide_reset(void) -{ - debug("init_ide_reset\n"); - - /* Configure PSC1_4 as GPIO output for ATA reset */ - *(vu_long *) MPC5XXX_WU_GPIO_ENABLE |= GPIO_PSC1_4; - *(vu_long *) MPC5XXX_WU_GPIO_DIR |= GPIO_PSC1_4; - /* Deassert reset */ - *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4; -} - - -void ide_set_reset(int idereset) -{ - debug("ide_reset(%d)\n", idereset); - - if (idereset) { - *(vu_long *) MPC5XXX_WU_GPIO_DATA_O &= ~GPIO_PSC1_4; - /* Make a delay. MPC5200 spec says 25 usec min */ - udelay(500000); - } else - *(vu_long *) MPC5XXX_WU_GPIO_DATA_O |= GPIO_PSC1_4; -} -#endif - - -#ifdef CONFIG_HW_WATCHDOG -void hw_watchdog_reset(void) -{ - /* - * MarelV38B has a TPS3705 watchdog. Spec says that to kick the dog - * we need a positive or negative transition on WDI i.e., our PSC3_9. - */ - *(vu_long *) MPC5XXX_WU_GPIO_DATA_O ^= GPIO_PSC3_9; -} -#endif /* CONFIG_HW_WATCHDOG */ |