WBSD_CSR
csr = inb(host->base + WBSD_CSR);
outb(WBSD_POWER_N, host->base + WBSD_CSR);
if (inb(host->base + WBSD_CSR) & WBSD_CARDPRESENT)
pwr = inb(host->base + WBSD_CSR);
outb(pwr, host->base + WBSD_CSR);
csr = inb(host->base + WBSD_CSR);
outb(csr, host->base + WBSD_CSR);
csr = inb(host->base + WBSD_CSR);
outb(csr, host->base + WBSD_CSR);