diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/sbc8548.c')
| -rw-r--r-- | arch/powerpc/platforms/85xx/sbc8548.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c index 488facb99fe8..b9246ea0928a 100644 --- a/arch/powerpc/platforms/85xx/sbc8548.c +++ b/arch/powerpc/platforms/85xx/sbc8548.c @@ -49,6 +49,8 @@ #include <sysdev/fsl_soc.h> #include <sysdev/fsl_pci.h> +static int sbc_rev; + static void __init sbc8548_pic_init(void) { struct mpic *mpic; @@ -79,6 +81,30 @@ static void __init sbc8548_pic_init(void) mpic_init(mpic); } +/* Extract the HW Rev from the EPLD on the board */ +static int __init sbc8548_hw_rev(void) +{ + struct device_node *np; + struct resource res; + unsigned int *rev; + int board_rev = 0; + + np = of_find_compatible_node(NULL, NULL, "hw-rev"); + if (np == NULL) { + printk("No HW-REV found in DTB.\n"); + return -ENODEV; + } + + of_address_to_resource(np, 0, &res); + of_node_put(np); + + rev = ioremap(res.start,sizeof(unsigned int)); + board_rev = (*rev) >> 28; + iounmap(rev); + + return board_rev; +} + /* * Setup the architecture */ @@ -104,6 +130,7 @@ static void __init sbc8548_setup_arch(void) } } #endif + sbc_rev = sbc8548_hw_rev(); } static void sbc8548_show_cpuinfo(struct seq_file *m) @@ -115,7 +142,7 @@ static void sbc8548_show_cpuinfo(struct seq_file *m) svid = mfspr(SPRN_SVR); seq_printf(m, "Vendor\t\t: Wind River\n"); - seq_printf(m, "Machine\t\t: SBC8548\n"); + seq_printf(m, "Machine\t\t: SBC8548 v%d\n", sbc_rev); seq_printf(m, "PVR\t\t: 0x%x\n", pvid); seq_printf(m, "SVR\t\t: 0x%x\n", svid); @@ -130,6 +157,7 @@ static void sbc8548_show_cpuinfo(struct seq_file *m) static struct of_device_id __initdata of_bus_ids[] = { { .name = "soc", }, { .type = "soc", }, + { .compatible = "simple-bus", }, {}, }; |