diff options
Diffstat (limited to 'board/ti/omap2420h4/sys_info.c')
| -rw-r--r-- | board/ti/omap2420h4/sys_info.c | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/board/ti/omap2420h4/sys_info.c b/board/ti/omap2420h4/sys_info.c deleted file mode 100644 index b12011e..0000000 --- a/board/ti/omap2420h4/sys_info.c +++ /dev/null @@ -1,387 +0,0 @@ -/* - * (C) Copyright 2004 - * Texas Instruments, <www.ti.com> - * Richard Woodruff <r-woodruff2@ti.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/arch/omap2420.h> -#include <asm/io.h> -#include <asm/arch/bits.h> -#include <asm/arch/mem.h> /* get mem tables */ -#include <asm/arch/sys_proto.h> -#include <asm/arch/sys_info.h> -#include <i2c.h> - -/************************************************************************** - * get_prod_id() - get id info from chips - ***************************************************************************/ -static u32 get_prod_id(void) -{ - u32 p; - p = __raw_readl(PRODUCTION_ID); /* get production ID */ - return((p & CPU_242X_PID_MASK) >> 16); -} - -/************************************************************************** - * get_cpu_type() - low level get cpu type - * - no C globals yet. - * - just looking to say if this is a 2422 or 2420 or ... - * - to start with we will look at switch settings.. - * - 2422 id's same as 2420 for ES1 will rely on H4 board characteristics - * (mux for 2420, non-mux for 2422). - ***************************************************************************/ -u32 get_cpu_type(void) -{ - u32 v; - - switch(get_prod_id()){ - case 1:;/* 2420 */ - case 2: return(CPU_2420); break; /* 2420 pop */ - case 4: return(CPU_2422); break; - case 8: return(CPU_2423); break; - default: break; /* early 2420/2422's unmarked */ - } - - v = __raw_readl(TAP_IDCODE_REG); - v &= CPU_24XX_ID_MASK; - if (v == CPU_2420_CHIPID) { /* currently 2420 and 2422 have same id */ - if (is_gpmc_muxed() == GPMC_MUXED) /* if mux'ed */ - return(CPU_2420); - else - return(CPU_2422); - } else - return(CPU_2420); /* don't know, say 2420 */ -} - -/****************************************** - * get_cpu_rev(void) - extract version info - ******************************************/ -u32 get_cpu_rev(void) -{ - u32 v; - v = __raw_readl(TAP_IDCODE_REG); - v = v >> 28; - return(v+1); /* currently 2422 and 2420 match up */ -} -/**************************************************** - * is_mem_sdr() - return 1 if mem type in use is SDR - ****************************************************/ -u32 is_mem_sdr(void) -{ - volatile u32 *burst = (volatile u32 *)(SDRC_MR_0+SDRC_CS0_OSET); - if(*burst == H4_2420_SDRC_MR_0_SDR) - return(1); - return(0); -} - -/*********************************************************** - * get_mem_type() - identify type of mDDR part used. - * 2422 uses stacked DDR, 2 parts CS0/CS1. - * 2420 may have 1 or 2, no good way to know...only init 1... - * when eeprom data is up we can select 1 more. - *************************************************************/ -u32 get_mem_type(void) -{ - u32 cpu, sdr = is_mem_sdr(); - - cpu = get_cpu_type(); - if (cpu == CPU_2422 || cpu == CPU_2423) - return(DDR_STACKED); - - if(get_prod_id() == 0x2) - return(XDR_POP); - - if (get_board_type() == BOARD_H4_MENELAUS) - if(sdr) - return(SDR_DISCRETE); - else - return(DDR_COMBO); - else - if(sdr) /* SDP + SDR kit */ - return(SDR_DISCRETE); - else - return(DDR_DISCRETE); /* origional SDP */ -} - -/*********************************************************************** - * get_cs0_size() - get size of chip select 0/1 - ************************************************************************/ -u32 get_sdr_cs_size(u32 offset) -{ - u32 size; - size = __raw_readl(SDRC_MCFG_0+offset) >> 8; /* get ram size field */ - size &= 0x2FF; /* remove unwanted bits */ - size *= SZ_2M; /* find size in MB */ - return(size); -} - -/*********************************************************************** - * get_board_type() - get board type based on current production stats. - * --- NOTE: 2 I2C EEPROMs will someday be populated with proper info. - * when they are available we can get info from there. This should - * be correct of all known boards up until today. - ************************************************************************/ -u32 get_board_type(void) -{ - if (i2c_probe(I2C_MENELAUS) == 0) - return(BOARD_H4_MENELAUS); - else - return(BOARD_H4_SDP); -} - -/****************************************************************** - * get_sysboot_value() - get init word settings (dip switch on h4) - ******************************************************************/ -inline u32 get_sysboot_value(void) -{ - return(0x00000FFF & __raw_readl(CONTROL_STATUS)); -} - -/*************************************************************************** - * get_gpmc0_base() - Return current address hardware will be - * fetching from. The below effectively gives what is correct, its a bit - * mis-leading compared to the TRM. For the most general case the mask - * needs to be also taken into account this does work in practice. - * - for u-boot we currently map: - * -- 0 to nothing, - * -- 4 to flash - * -- 8 to enent - * -- c to wifi - ****************************************************************************/ -u32 get_gpmc0_base(void) -{ - u32 b; - - b = __raw_readl(GPMC_CONFIG7_0); - b &= 0x1F; /* keep base [5:0] */ - b = b << 24; /* ret 0x0b000000 */ - return(b); -} - -/***************************************************************** - * is_gpmc_muxed() - tells if address/data lines are multiplexed - *****************************************************************/ -u32 is_gpmc_muxed(void) -{ - u32 mux; - mux = get_sysboot_value(); - if ((mux & (BIT0 | BIT1 | BIT2 | BIT3)) == (BIT0 | BIT2 | BIT3)) - return(GPMC_MUXED); /* NAND Boot mode */ - if (mux & BIT1) /* if mux'ed */ - return(GPMC_MUXED); - else - return(GPMC_NONMUXED); -} - -/************************************************************************ - * get_gpmc0_type() - read sysboot lines to see type of memory attached - ************************************************************************/ -u32 get_gpmc0_type(void) -{ - u32 type; - type = get_sysboot_value(); - if ((type & (BIT3|BIT2)) == (BIT3|BIT2)) - return(TYPE_NAND); - else - return(TYPE_NOR); -} - -/******************************************************************* - * get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand) - *******************************************************************/ -u32 get_gpmc0_width(void) -{ - u32 width; - width = get_sysboot_value(); - if ((width & 0xF) == (BIT3|BIT2)) - return(WIDTH_8BIT); - else - return(WIDTH_16BIT); -} - -/********************************************************************* - * wait_on_value() - common routine to allow waiting for changes in - * volatile regs. - *********************************************************************/ -u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound) -{ - u32 i = 0, val; - do { - ++i; - val = __raw_readl(read_addr) & read_bit_mask; - if (val == match_value) - return(1); - if (i==bound) - return(0); - } while (1); -} - -/********************************************************************* - * display_board_info() - print banner with board info. - *********************************************************************/ -void display_board_info(u32 btype) -{ - static const char cpu_2420 [] = "2420"; /* cpu type */ - static const char cpu_2422 [] = "2422"; - static const char cpu_2423 [] = "2423"; - static const char db_men [] = "Menelaus"; /* board type */ - static const char db_ip [] = "IP"; - static const char mem_sdr [] = "mSDR"; /* memory type */ - static const char mem_ddr [] = "mDDR"; - static const char t_tst [] = "TST"; /* security level */ - static const char t_emu [] = "EMU"; - static const char t_hs [] = "HS"; - static const char t_gp [] = "GP"; - static const char unk [] = "?"; - - const char *cpu_s, *db_s, *mem_s, *sec_s; - u32 cpu, rev, sec; - - rev = get_cpu_rev(); - cpu = get_cpu_type(); - sec = get_device_type(); - - if(is_mem_sdr()) - mem_s = mem_sdr; - else - mem_s = mem_ddr; - - if(cpu == CPU_2423) - cpu_s = cpu_2423; - else if (cpu == CPU_2422) - cpu_s = cpu_2422; - else - cpu_s = cpu_2420; - - if(btype == BOARD_H4_MENELAUS) - db_s = db_men; - else - db_s = db_ip; - - switch(sec){ - case TST_DEVICE: sec_s = t_tst; break; - case EMU_DEVICE: sec_s = t_emu; break; - case HS_DEVICE: sec_s = t_hs; break; - case GP_DEVICE: sec_s = t_gp; break; - default: sec_s = unk; - } - - printf("OMAP%s-%s revision %d\n", cpu_s, sec_s, rev-1); - printf("TI H4 SDP Base Board + %s Daughter Board + %s \n", db_s, mem_s); -} - -/************************************************************************* - * get_board_rev() - setup to pass kernel board revision information - * 0 = 242x IP platform (first 2xx boards) - * 1 = 242x Menelaus platfrom. - *************************************************************************/ -u32 get_board_rev(void) -{ - u32 rev = 0; - u32 btype = get_board_type(); - - if (btype == BOARD_H4_MENELAUS){ - rev = 1; - } - return(rev); -} - -/******************************************************** - * get_base(); get upper addr of current execution - *******************************************************/ -u32 get_base(void) -{ - u32 val; - __asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory"); - val &= 0xF0000000; - val >>= 28; - return(val); -} - -/******************************************************** - * get_base2(); get 2upper addr of current execution - *******************************************************/ -u32 get_base2(void) -{ - u32 val; - __asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory"); - val &= 0xFF000000; - val >>= 24; - return(val); -} - -/******************************************************** - * running_in_flash() - tell if currently running in - * flash. - *******************************************************/ -u32 running_in_flash(void) -{ - if (get_base() < 4) - return(1); /* in flash */ - return(0); /* running in SRAM or SDRAM */ -} - -/******************************************************** - * running_in_sram() - tell if currently running in - * sram. - *******************************************************/ -u32 running_in_sram(void) -{ - if (get_base() == 4) - return(1); /* in SRAM */ - return(0); /* running in FLASH or SDRAM */ -} -/******************************************************** - * running_in_sdram() - tell if currently running in - * flash. - *******************************************************/ -u32 running_in_sdram(void) -{ - if (get_base() > 4) - return(1); /* in sdram */ - return(0); /* running in SRAM or FLASH */ -} - -/************************************************************* - * running_from_internal_boot() - am I a signed NOR image. - *************************************************************/ -u32 running_from_internal_boot(void) -{ - u32 v, base; - - v = get_sysboot_value() & BIT3; - base = get_base2(); - /* if running at mask rom flash address and - * sysboot3 says this was an internal boot - */ - if ((base == 0x08) && v) - return(1); - else - return(0); -} - -/************************************************************* - * get_device_type(): tell if GP/HS/EMU/TST - *************************************************************/ -u32 get_device_type(void) -{ - int mode; - mode = __raw_readl(CONTROL_STATUS) & (BIT10|BIT9|BIT8); - return(mode >>= 8); -} |