diff options
Diffstat (limited to 'arch/powerpc/platforms/512x/mpc512x_shared.c')
| -rw-r--r-- | arch/powerpc/platforms/512x/mpc512x_shared.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c index b683165a24e..a45824af03f 100644 --- a/arch/powerpc/platforms/512x/mpc512x_shared.c +++ b/arch/powerpc/platforms/512x/mpc512x_shared.c @@ -21,9 +21,38 @@ #include <asm/ipic.h> #include <asm/prom.h> #include <asm/time.h> +#include <asm/mpc5121.h> #include "mpc512x.h" +static struct mpc512x_reset_module __iomem *reset_module_base; + +static void __init mpc512x_restart_init(void) +{ + struct device_node *np; + + np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-reset"); + if (!np) + return; + + reset_module_base = of_iomap(np, 0); + of_node_put(np); +} + +void mpc512x_restart(char *cmd) +{ + if (reset_module_base) { + /* Enable software reset "RSTE" */ + out_be32(&reset_module_base->rpr, 0x52535445); + /* Set software hard reset */ + out_be32(&reset_module_base->rcr, 0x2); + } else { + pr_err("Restart module not mapped.\n"); + } + for (;;) + ; +} + void __init mpc512x_init_IRQ(void) { struct device_node *np; @@ -62,4 +91,5 @@ void __init mpc512x_init(void) { mpc512x_declare_of_platform_devices(); mpc5121_clk_init(); + mpc512x_restart_init(); } |