Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * rbtx4939 specific prom routines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * License.  See the file "COPYING" in the main directory of this archive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/memblock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/txx9/generic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/txx9/rbtx4939.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) void __init rbtx4939_prom_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	unsigned long start, size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	u64 win;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	for (i = 0; i < 4; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		if (!((__u32)____raw_readq(&tx4939_ddrcptr->winen) & (1 << i)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 		win = ____raw_readq(&tx4939_ddrcptr->win[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		start = (unsigned long)(win >> 48);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		size = (((unsigned long)(win >> 32) & 0xffff) + 1) - start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		memblock_add(start << 20, size << 20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	txx9_sio_putchar_init(TX4939_SIO_REG(0) & 0xfffffffffULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }