1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * rbtx4939 specific prom routines 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public 5*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive 6*4882a593Smuzhiyun * for more details. 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <linux/init.h> 10*4882a593Smuzhiyun #include <linux/memblock.h> 11*4882a593Smuzhiyun #include <asm/txx9/generic.h> 12*4882a593Smuzhiyun #include <asm/txx9/rbtx4939.h> 13*4882a593Smuzhiyun rbtx4939_prom_init(void)14*4882a593Smuzhiyunvoid __init rbtx4939_prom_init(void) 15*4882a593Smuzhiyun { 16*4882a593Smuzhiyun unsigned long start, size; 17*4882a593Smuzhiyun u64 win; 18*4882a593Smuzhiyun int i; 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun for (i = 0; i < 4; i++) { 21*4882a593Smuzhiyun if (!((__u32)____raw_readq(&tx4939_ddrcptr->winen) & (1 << i))) 22*4882a593Smuzhiyun continue; 23*4882a593Smuzhiyun win = ____raw_readq(&tx4939_ddrcptr->win[i]); 24*4882a593Smuzhiyun start = (unsigned long)(win >> 48); 25*4882a593Smuzhiyun size = (((unsigned long)(win >> 32) & 0xffff) + 1) - start; 26*4882a593Smuzhiyun memblock_add(start << 20, size << 20); 27*4882a593Smuzhiyun } 28*4882a593Smuzhiyun txx9_sio_putchar_init(TX4939_SIO_REG(0) & 0xfffffffffULL); 29*4882a593Smuzhiyun } 30