diff options
Diffstat (limited to 'cpu/arm_cortexa8/omap3/sys_info.c')
| -rw-r--r-- | cpu/arm_cortexa8/omap3/sys_info.c | 29 |
1 files changed, 22 insertions, 7 deletions
diff --git a/cpu/arm_cortexa8/omap3/sys_info.c b/cpu/arm_cortexa8/omap3/sys_info.c index fb240df..2f04cd6 100644 --- a/cpu/arm_cortexa8/omap3/sys_info.c +++ b/cpu/arm_cortexa8/omap3/sys_info.c @@ -35,6 +35,12 @@ extern omap3_sysinfo sysinfo; static gpmc_csx_t *gpmc_cs_base = (gpmc_csx_t *)GPMC_CONFIG_CS0_BASE; static sdrc_t *sdrc_base = (sdrc_t *)OMAP34XX_SDRC_BASE; static ctrl_t *ctrl_base = (ctrl_t *)OMAP34XX_CTRL_BASE; +static char *rev_s[CPU_3XX_MAX_REV] = { + "1.0", + "2.0", + "2.1", + "3.0", + "3.1"}; /***************************************************************** * dieid_num_r(void) - read and set die ID @@ -76,18 +82,27 @@ u32 get_cpu_type(void) u32 get_cpu_rev(void) { u32 cpuid = 0; + ctrl_id_t *id_base; /* * On ES1.0 the IDCODE register is not exposed on L4 - * so using CPU ID to differentiate - * between ES2.0 and ES1.0. + * so using CPU ID to differentiate between ES1.0 and > ES1.0. */ __asm__ __volatile__("mrc p15, 0, %0, c0, c0, 0":"=r"(cpuid)); if ((cpuid & 0xf) == 0x0) - return CPU_3430_ES1; - else - return CPU_3430_ES2; + return CPU_3XX_ES10; + else { + /* Decode the IDs on > ES1.0 */ + id_base = (ctrl_id_t *) OMAP34XX_ID_L4_IO_BASE; + cpuid = (readl(&id_base->idcode) >> CPU_3XX_ID_SHIFT) & 0xf; + + /* Some early ES2.0 seem to report ID 0, fix this */ + if(cpuid == 0) + cpuid = CPU_3XX_ES20; + + return cpuid; + } } /**************************************************** @@ -277,8 +292,8 @@ int print_cpuinfo (void) sec_s = "?"; } - printf("OMAP%s-%s rev %d, CPU-OPP2 L3-165MHz\n", cpu_s, - sec_s, get_cpu_rev()); + printf("OMAP%s-%s ES%s, CPU-OPP2 L3-165MHz\n", + cpu_s, sec_s, rev_s[get_cpu_rev()]); return 0; } |