Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * ip22-hpc.c: Routines for generic manipulation of the HPC controllers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 1998 Ralf Baechle
^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/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/sgi/hpc3.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/sgi/ioc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/sgi/ip22.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) struct hpc3_regs *hpc3c0, *hpc3c1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) EXPORT_SYMBOL(hpc3c0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) EXPORT_SYMBOL(hpc3c1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct sgioc_regs *sgioc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) EXPORT_SYMBOL(sgioc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) /* We need software copies of these because they are write only. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) u8 sgi_ioc_reset, sgi_ioc_write;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern char *system_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) void __init sgihpc_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	/* ioremap can't fail */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	hpc3c0 = (struct hpc3_regs *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		 ioremap(HPC3_CHIP0_BASE, sizeof(struct hpc3_regs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	hpc3c1 = (struct hpc3_regs *)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		 ioremap(HPC3_CHIP1_BASE, sizeof(struct hpc3_regs));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	/* IOC lives in PBUS PIO channel 6 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	sgioc = (struct sgioc_regs *)hpc3c0->pbus_extregs[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	hpc3c0->pbus_piocfg[6][0] |= HPC3_PIOCFG_DS16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	if (ip22_is_fullhouse()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		/* Full House comes with INT2 which lives in PBUS PIO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		 * channel 4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		sgint = (struct sgint_regs *)hpc3c0->pbus_extregs[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		system_type = "SGI Indigo2";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 		/* Guiness comes with INT3 which is part of IOC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		sgint = &sgioc->int3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		system_type = "SGI Indy";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	sgi_ioc_reset = (SGIOC_RESET_PPORT | SGIOC_RESET_KBDMOUSE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 			 SGIOC_RESET_EISA | SGIOC_RESET_ISDN |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 			 SGIOC_RESET_LC0OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	sgi_ioc_write = (SGIOC_WRITE_EASEL | SGIOC_WRITE_NTHRESH |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 			 SGIOC_WRITE_TPSPEED | SGIOC_WRITE_EPSEL |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 			 SGIOC_WRITE_U0AMODE | SGIOC_WRITE_U1AMODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	sgioc->reset = sgi_ioc_reset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 	sgioc->write = sgi_ioc_write;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }