diff options
Diffstat (limited to 'board/omap2420h4/sys_info.c')
| -rw-r--r-- | board/omap2420h4/sys_info.c | 115 |
1 files changed, 100 insertions, 15 deletions
diff --git a/board/omap2420h4/sys_info.c b/board/omap2420h4/sys_info.c index 121d67916..a9f72412a 100644 --- a/board/omap2420h4/sys_info.c +++ b/board/omap2420h4/sys_info.c @@ -29,6 +29,16 @@ #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 ... @@ -40,6 +50,14 @@ 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 */ @@ -61,6 +79,16 @@ u32 get_cpu_rev(void) 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. @@ -70,24 +98,40 @@ u32 get_cpu_rev(void) *************************************************************/ u32 get_mem_type(void) { - volatile u32 *burst = (volatile u32 *)(SDRC_MR_0+SDRC_CS0_OSET); + u32 cpu, sdr = is_mem_sdr(); - if (get_cpu_type() == CPU_2422) + 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(*burst == H4_2420_SDRC_MR_0_SDR) + if(sdr) return(SDR_DISCRETE); else return(DDR_COMBO); else - if(*burst == H4_2420_SDRC_MR_0_SDR) /* SDP + SDR kit */ + 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 @@ -104,7 +148,7 @@ u32 get_board_type(void) /****************************************************************** * get_sysboot_value() - get init word settings (dip switch on h4) ******************************************************************/ -u32 get_sysboot_value(void) +inline u32 get_sysboot_value(void) { return(0x00000FFF & __raw_readl(CONTROL_STATUS)); } @@ -193,22 +237,53 @@ u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, u32 bound) *********************************************************************/ void display_board_info(u32 btype) { - char cpu_2420[] = "2420"; + char cpu_2420[] = "2420"; /* cpu type */ char cpu_2422[] = "2422"; - char db_men[] = "Menelaus"; - char db_ip[]= "IP"; - char *cpu_s, *db_s; - u32 cpu = get_cpu_type(); + char cpu_2423[] = "2423"; + char db_men[] = "Menelaus"; /* board type */ + char db_ip[] = "IP"; + char mem_sdr[] = "mSDR"; /* memory type */ + char mem_ddr[] = "mDDR"; + char t_tst[] = "TST"; /* security level */ + char t_emu[] = "EMU"; + char t_hs[] = "HS"; + char t_gp[] = "GP"; + char unk[] = "?"; - if(cpu == CPU_2420) - cpu_s = cpu_2420; + 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; - printf("TI H4 SDP Base Board with OMAP%s %s Daughter Board\n",cpu_s, db_s); + + 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); } /************************************************************************* @@ -230,7 +305,7 @@ u32 get_board_rev(void) /******************************************************** * get_base(); get upper addr of current execution *******************************************************/ -static u32 get_base(void) +u32 get_base(void) { u32 val; __asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory"); @@ -242,7 +317,7 @@ static u32 get_base(void) /******************************************************** * get_base2(); get 2upper addr of current execution *******************************************************/ -static u32 get_base2(void) +u32 get_base2(void) { u32 val; __asm__ __volatile__("mov %0, pc \n" : "=r" (val) : : "memory"); @@ -300,3 +375,13 @@ u32 running_from_internal_boot(void) 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); +} |