scom_write(scom, SCOM_RAMIC, cmd);
- while (!((val = scom_read(scom, SCOM_RAMC)) & mask)) {
+ for (;;) {
+ if (scom_read(scom, SCOM_RAMC, &val) != 0) {
+ pr_err("SCOM error on instruction 0x%08x, thread %d\n",
+ insn, thread);
+ return -1;
+ }
+ if (val & mask)
+ break;
pr_devel("Waiting on RAMC = 0x%llx\n", val);
if (++n == 3) {
pr_err("RAMC timeout on instruction 0x%08x, thread %d\n",
if (rc)
return rc;
- *out_gpr = scom_read(scom, SCOM_RAMD);
-
- return 0;
+ return scom_read(scom, SCOM_RAMD, out_gpr);
}
static int a2_scom_getspr(scom_map_t scom, int thread, int spr, u64 *out_spr)
pr_devel("Bringing up CPU%d using SCOM...\n", lcpu);
- pccr0 = scom_read(scom, SCOM_PCCR0);
+ if (scom_read(scom, SCOM_PCCR0, &pccr0) != 0) {
+ printk(KERN_ERR "XSCOM failure readng PCCR0 on CPU%d\n", lcpu);
+ return -1;
+ }
scom_write(scom, SCOM_PCCR0, pccr0 | SCOM_PCCR0_ENABLE_DEBUG |
SCOM_PCCR0_ENABLE_RAM);