CFG_MEM_RAM_SHUTDOWN
return (readl(diagcsr + CFG_MEM_RAM_SHUTDOWN) == 0 &&
writel(0x0, ctx->csr_diag + CFG_MEM_RAM_SHUTDOWN);
readl(ctx->csr_diag + CFG_MEM_RAM_SHUTDOWN); /* Force a barrier */
xge_wr_csr(pdata, CFG_MEM_RAM_SHUTDOWN, 1);
xge_wr_csr(pdata, CFG_MEM_RAM_SHUTDOWN, 0);