summaryrefslogtreecommitdiff
path: root/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-05-28 11:27:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-05-28 11:27:17 -0700
commit6112bd00e84e5dbffebc3c1e908cbe914ca772ee (patch)
tree06ffaf2e2e1623ad02d63ec615a03379ac833f3c /arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
parent907bb57aa7b471872aab2f2e83e9713a145673f9 (diff)
parentdcf280e6f80be280ca7dd1b058f038654e4a18dd (diff)
Merge tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman: - Convert to the generic mmap support (ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT) - Add support for outline-only KASAN with 64-bit Radix MMU (P9 or later) - Increase SIGSTKSZ and MINSIGSTKSZ and add support for AT_MINSIGSTKSZ - Enable the DAWR (Data Address Watchpoint) on POWER9 DD2.3 or later - Drop support for system call instruction emulation - Many other small features and fixes Thanks to Alexey Kardashevskiy, Alistair Popple, Andy Shevchenko, Bagas Sanjaya, Bjorn Helgaas, Bo Liu, Chen Huang, Christophe Leroy, Colin Ian King, Daniel Axtens, Dwaipayan Ray, Fabiano Rosas, Finn Thain, Frank Rowand, Fuqian Huang, Guilherme G. Piccoli, Hangyu Hua, Haowen Bai, Haren Myneni, Hari Bathini, He Ying, Jason Wang, Jiapeng Chong, Jing Yangyang, Joel Stanley, Julia Lawall, Kajol Jain, Kevin Hao, Krzysztof Kozlowski, Laurent Dufour, Lv Ruyi, Madhavan Srinivasan, Magali Lemes, Miaoqian Lin, Minghao Chi, Nathan Chancellor, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Oscar Salvador, Pali Rohár, Paul Mackerras, Peng Wu, Qing Wang, Randy Dunlap, Reza Arbab, Russell Currey, Sohaib Mohamed, Vaibhav Jain, Vasant Hegde, Wang Qing, Wang Wensheng, Xiang wangx, Xiaomeng Tong, Xu Wang, Yang Guang, Yang Li, Ye Bin, YueHaibing, Yu Kuai, Zheng Bin, Zou Wei, and Zucheng Zheng. * tag 'powerpc-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (200 commits) powerpc/64: Include cache.h directly in paca.h powerpc/64s: Only set HAVE_ARCH_UNMAPPED_AREA when CONFIG_PPC_64S_HASH_MMU is set powerpc/xics: Include missing header powerpc/powernv/pci: Drop VF MPS fixup powerpc/fsl_book3e: Don't set rodata RO too early powerpc/microwatt: Add mmu bits to device tree powerpc/powernv/flash: Check OPAL flash calls exist before using powerpc/powermac: constify device_node in of_irq_parse_oldworld() powerpc/powermac: add missing g5_phy_disable_cpu1() declaration selftests/powerpc/pmu: fix spelling mistake "mis-match" -> "mismatch" powerpc: Enable the DAWR on POWER9 DD2.3 and above powerpc/64s: Add CPU_FTRS_POWER10 to ALWAYS mask powerpc/64s: Add CPU_FTRS_POWER9_DD2_2 to CPU_FTRS_ALWAYS mask powerpc: Fix all occurences of "the the" selftests/powerpc/pmu/ebb: remove fixed_instruction.S powerpc/platforms/83xx: Use of_device_get_match_data() powerpc/eeh: Drop redundant spinlock initialization powerpc/iommu: Add missing of_node_put in iommu_init_early_dart powerpc/pseries/vas: Call misc_deregister if sysfs init fails powerpc/papr_scm: Fix leaking nvdimm_events_map elements ...
Diffstat (limited to 'arch/powerpc/sysdev/fsl_85xx_l2ctlr.c')
-rw-r--r--arch/powerpc/sysdev/fsl_85xx_l2ctlr.c216
1 files changed, 0 insertions, 216 deletions
diff --git a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c b/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
deleted file mode 100644
index 2d0af0c517bb..000000000000
--- a/arch/powerpc/sysdev/fsl_85xx_l2ctlr.c
+++ /dev/null
@@ -1,216 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright 2009-2010, 2012 Freescale Semiconductor, Inc.
- *
- * QorIQ (P1/P2) L2 controller init for Cache-SRAM instantiation
- *
- * Author: Vivek Mahajan <vivek.mahajan@freescale.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of_platform.h>
-#include <asm/io.h>
-
-#include "fsl_85xx_cache_ctlr.h"
-
-static char *sram_size;
-static char *sram_offset;
-struct mpc85xx_l2ctlr __iomem *l2ctlr;
-
-static int get_cache_sram_params(struct sram_parameters *sram_params)
-{
- unsigned long long addr;
- unsigned int size;
-
- if (!sram_size || (kstrtouint(sram_size, 0, &size) < 0))
- return -EINVAL;
-
- if (!sram_offset || (kstrtoull(sram_offset, 0, &addr) < 0))
- return -EINVAL;
-
- sram_params->sram_offset = addr;
- sram_params->sram_size = size;
-
- return 0;
-}
-
-static int __init get_size_from_cmdline(char *str)
-{
- if (!str)
- return 0;
-
- sram_size = str;
- return 1;
-}
-
-static int __init get_offset_from_cmdline(char *str)
-{
- if (!str)
- return 0;
-
- sram_offset = str;
- return 1;
-}
-
-__setup("cache-sram-size=", get_size_from_cmdline);
-__setup("cache-sram-offset=", get_offset_from_cmdline);
-
-static int mpc85xx_l2ctlr_of_probe(struct platform_device *dev)
-{
- long rval;
- unsigned int rem;
- unsigned char ways;
- const unsigned int *prop;
- unsigned int l2cache_size;
- struct sram_parameters sram_params;
-
- if (!dev->dev.of_node) {
- dev_err(&dev->dev, "Device's OF-node is NULL\n");
- return -EINVAL;
- }
-
- prop = of_get_property(dev->dev.of_node, "cache-size", NULL);
- if (!prop) {
- dev_err(&dev->dev, "Missing L2 cache-size\n");
- return -EINVAL;
- }
- l2cache_size = *prop;
-
- if (get_cache_sram_params(&sram_params))
- return 0; /* fall back to L2 cache only */
-
- rem = l2cache_size % sram_params.sram_size;
- ways = LOCK_WAYS_FULL * sram_params.sram_size / l2cache_size;
- if (rem || (ways & (ways - 1))) {
- dev_err(&dev->dev, "Illegal cache-sram-size in command line\n");
- return -EINVAL;
- }
-
- l2ctlr = of_iomap(dev->dev.of_node, 0);
- if (!l2ctlr) {
- dev_err(&dev->dev, "Can't map L2 controller\n");
- return -EINVAL;
- }
-
- /*
- * Write bits[0-17] to srbar0
- */
- out_be32(&l2ctlr->srbar0,
- lower_32_bits(sram_params.sram_offset) & L2SRAM_BAR_MSK_LO18);
-
- /*
- * Write bits[18-21] to srbare0
- */
-#ifdef CONFIG_PHYS_64BIT
- out_be32(&l2ctlr->srbarea0,
- upper_32_bits(sram_params.sram_offset) & L2SRAM_BARE_MSK_HI4);
-#endif
-
- clrsetbits_be32(&l2ctlr->ctl, L2CR_L2E, L2CR_L2FI);
-
- switch (ways) {
- case LOCK_WAYS_EIGHTH:
- setbits32(&l2ctlr->ctl,
- L2CR_L2E | L2CR_L2FI | L2CR_SRAM_EIGHTH);
- break;
-
- case LOCK_WAYS_TWO_EIGHTH:
- setbits32(&l2ctlr->ctl,
- L2CR_L2E | L2CR_L2FI | L2CR_SRAM_QUART);
- break;
-
- case LOCK_WAYS_HALF:
- setbits32(&l2ctlr->ctl,
- L2CR_L2E | L2CR_L2FI | L2CR_SRAM_HALF);
- break;
-
- case LOCK_WAYS_FULL:
- default:
- setbits32(&l2ctlr->ctl,
- L2CR_L2E | L2CR_L2FI | L2CR_SRAM_FULL);
- break;
- }
- eieio();
-
- rval = instantiate_cache_sram(dev, sram_params);
- if (rval < 0) {
- dev_err(&dev->dev, "Can't instantiate Cache-SRAM\n");
- iounmap(l2ctlr);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int mpc85xx_l2ctlr_of_remove(struct platform_device *dev)
-{
- BUG_ON(!l2ctlr);
-
- iounmap(l2ctlr);
- remove_cache_sram(dev);
- dev_info(&dev->dev, "MPC85xx L2 controller unloaded\n");
-
- return 0;
-}
-
-static const struct of_device_id mpc85xx_l2ctlr_of_match[] = {
- {
- .compatible = "fsl,p2020-l2-cache-controller",
- },
- {
- .compatible = "fsl,p2010-l2-cache-controller",
- },
- {
- .compatible = "fsl,p1020-l2-cache-controller",
- },
- {
- .compatible = "fsl,p1011-l2-cache-controller",
- },
- {
- .compatible = "fsl,p1013-l2-cache-controller",
- },
- {
- .compatible = "fsl,p1022-l2-cache-controller",
- },
- {
- .compatible = "fsl,mpc8548-l2-cache-controller",
- },
- { .compatible = "fsl,mpc8544-l2-cache-controller",},
- { .compatible = "fsl,mpc8572-l2-cache-controller",},
- { .compatible = "fsl,mpc8536-l2-cache-controller",},
- { .compatible = "fsl,p1021-l2-cache-controller",},
- { .compatible = "fsl,p1012-l2-cache-controller",},
- { .compatible = "fsl,p1025-l2-cache-controller",},
- { .compatible = "fsl,p1016-l2-cache-controller",},
- { .compatible = "fsl,p1024-l2-cache-controller",},
- { .compatible = "fsl,p1015-l2-cache-controller",},
- { .compatible = "fsl,p1010-l2-cache-controller",},
- { .compatible = "fsl,bsc9131-l2-cache-controller",},
- {},
-};
-
-static struct platform_driver mpc85xx_l2ctlr_of_platform_driver = {
- .driver = {
- .name = "fsl-l2ctlr",
- .of_match_table = mpc85xx_l2ctlr_of_match,
- },
- .probe = mpc85xx_l2ctlr_of_probe,
- .remove = mpc85xx_l2ctlr_of_remove,
-};
-
-static __init int mpc85xx_l2ctlr_of_init(void)
-{
- return platform_driver_register(&mpc85xx_l2ctlr_of_platform_driver);
-}
-
-static void __exit mpc85xx_l2ctlr_of_exit(void)
-{
- platform_driver_unregister(&mpc85xx_l2ctlr_of_platform_driver);
-}
-
-subsys_initcall(mpc85xx_l2ctlr_of_init);
-module_exit(mpc85xx_l2ctlr_of_exit);
-
-MODULE_DESCRIPTION("Freescale MPC85xx L2 controller init");
-MODULE_LICENSE("GPL v2");