diff options
author | Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
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committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/u-boot/board/sbc8349/sbc8349.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/u-boot/board/sbc8349/sbc8349.c')
-rw-r--r-- | qemu/roms/u-boot/board/sbc8349/sbc8349.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/sbc8349/sbc8349.c b/qemu/roms/u-boot/board/sbc8349/sbc8349.c new file mode 100644 index 000000000..89da47ed1 --- /dev/null +++ b/qemu/roms/u-boot/board/sbc8349/sbc8349.c @@ -0,0 +1,224 @@ +/* + * sbc8349.c -- WindRiver SBC8349 board support. + * Copyright (c) 2006-2007 Wind River Systems, Inc. + * + * Paul Gortmaker <paul.gortmaker@windriver.com> + * Based on board/mpc8349emds/mpc8349emds.c (and previous 834x releases.) + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <ioports.h> +#include <mpc83xx.h> +#include <asm/mpc8349_pci.h> +#include <i2c.h> +#include <spd_sdram.h> +#include <miiphy.h> +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#endif + +int fixed_sdram(void); +void sdram_init(void); + +#if defined(CONFIG_DDR_ECC) && defined(CONFIG_MPC83xx) +void ddr_enable_ecc(unsigned int dram_size); +#endif + +#ifdef CONFIG_BOARD_EARLY_INIT_F +int board_early_init_f (void) +{ + return 0; +} +#endif + +#define ns2clk(ns) (ns / (1000000000 / CONFIG_8349_CLKIN) + 1) + +phys_size_t initdram (int board_type) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + u32 msize = 0; + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32)im) + return -1; + + /* DDR SDRAM - Main SODIMM */ + im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_BASE & LAWBAR_BAR; +#if defined(CONFIG_SPD_EEPROM) + msize = spd_sdram(); +#else + msize = fixed_sdram(); +#endif + /* + * Initialize SDRAM if it is on local bus. + */ + sdram_init(); + +#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) + /* + * Initialize and enable DDR ECC. + */ + ddr_enable_ecc(msize * 1024 * 1024); +#endif + /* return total bus SDRAM size(bytes) -- DDR */ + return (msize * 1024 * 1024); +} + +#if !defined(CONFIG_SPD_EEPROM) +/************************************************************************* + * fixed sdram init -- doesn't use serial presence detect. + ************************************************************************/ +int fixed_sdram(void) +{ + volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR; + u32 msize = CONFIG_SYS_DDR_SIZE; + u32 ddr_size = msize << 20; /* DDR size in bytes */ + u32 ddr_size_log2 = __ilog2(msize); + + im->sysconf.ddrlaw[0].bar = CONFIG_SYS_DDR_SDRAM_BASE & 0xfffff000; + im->sysconf.ddrlaw[0].ar = LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE); + +#if (CONFIG_SYS_DDR_SIZE != 256) +#warning Currently any ddr size other than 256 is not supported +#endif + +#if ((CONFIG_SYS_DDR_SDRAM_BASE & 0x00FFFFFF) != 0) +#warning Chip select bounds is only configurable in 16MB increments +#endif + im->ddr.csbnds[2].csbnds = + ((CONFIG_SYS_DDR_SDRAM_BASE >> CSBNDS_SA_SHIFT) & CSBNDS_SA) | + (((CONFIG_SYS_DDR_SDRAM_BASE + ddr_size - 1) >> + CSBNDS_EA_SHIFT) & CSBNDS_EA); + im->ddr.cs_config[2] = CONFIG_SYS_DDR_CS2_CONFIG; + + /* currently we use only one CS, so disable the other banks */ + im->ddr.cs_config[0] = 0; + im->ddr.cs_config[1] = 0; + im->ddr.cs_config[3] = 0; + + im->ddr.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1; + im->ddr.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2; + + im->ddr.sdram_cfg = + SDRAM_CFG_SREN +#if defined(CONFIG_DDR_2T_TIMING) + | SDRAM_CFG_2T_EN +#endif + | SDRAM_CFG_SDRAM_TYPE_DDR1; +#if defined (CONFIG_DDR_32BIT) + /* for 32-bit mode burst length is 8 */ + im->ddr.sdram_cfg |= (SDRAM_CFG_32_BE | SDRAM_CFG_8_BE); +#endif + im->ddr.sdram_mode = CONFIG_SYS_DDR_MODE; + + im->ddr.sdram_interval = CONFIG_SYS_DDR_INTERVAL; + udelay(200); + + /* enable DDR controller */ + im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN; + return msize; +} +#endif/*!CONFIG_SYS_SPD_EEPROM*/ + + +int checkboard (void) +{ + puts("Board: Wind River SBC834x\n"); + return 0; +} + +/* + * if board is fitted with SDRAM + */ +#if defined(CONFIG_SYS_BR2_PRELIM) \ + && defined(CONFIG_SYS_OR2_PRELIM) \ + && defined(CONFIG_SYS_LBLAWBAR2_PRELIM) \ + && defined(CONFIG_SYS_LBLAWAR2_PRELIM) +/* + * Initialize SDRAM memory on the Local Bus. + */ + +void sdram_init(void) +{ + volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR; + volatile fsl_lbc_t *lbc = &immap->im_lbc; + uint *sdram_addr = (uint *)CONFIG_SYS_LBC_SDRAM_BASE; + + puts("\n SDRAM on Local Bus: "); + print_size (CONFIG_SYS_LBC_SDRAM_SIZE * 1024 * 1024, "\n"); + + /* + * Setup SDRAM Base and Option Registers, already done in cpu_init.c + */ + + /* setup mtrpt, lsrt and lbcr for LB bus */ + lbc->lbcr = CONFIG_SYS_LBC_LBCR; + lbc->mrtpr = CONFIG_SYS_LBC_MRTPR; + lbc->lsrt = CONFIG_SYS_LBC_LSRT; + asm("sync"); + + /* + * Configure the SDRAM controller Machine Mode Register. + */ + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5; /* 0x40636733; normal operation */ + + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_1; /* 0x68636733; precharge all the banks */ + asm("sync"); + *sdram_addr = 0xff; + udelay(100); + + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_2; /* 0x48636733; auto refresh */ + asm("sync"); + /*1 times*/ + *sdram_addr = 0xff; + udelay(100); + /*2 times*/ + *sdram_addr = 0xff; + udelay(100); + /*3 times*/ + *sdram_addr = 0xff; + udelay(100); + /*4 times*/ + *sdram_addr = 0xff; + udelay(100); + /*5 times*/ + *sdram_addr = 0xff; + udelay(100); + /*6 times*/ + *sdram_addr = 0xff; + udelay(100); + /*7 times*/ + *sdram_addr = 0xff; + udelay(100); + /*8 times*/ + *sdram_addr = 0xff; + udelay(100); + + /* 0x58636733; mode register write operation */ + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_4; + asm("sync"); + *sdram_addr = 0xff; + udelay(100); + + lbc->lsdmr = CONFIG_SYS_LBC_LSDMR_5; /* 0x40636733; normal operation */ + asm("sync"); + *sdram_addr = 0xff; + udelay(100); +} +#else +void sdram_init(void) +{ + puts(" SDRAM on Local Bus: Disabled in config\n"); +} +#endif + +#if defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ + ft_cpu_setup(blob, bd); +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif +} +#endif |