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Diffstat (limited to 'arch/nds32/kernel/atl2c.c')
-rw-r--r--arch/nds32/kernel/atl2c.c65
1 files changed, 0 insertions, 65 deletions
diff --git a/arch/nds32/kernel/atl2c.c b/arch/nds32/kernel/atl2c.c
deleted file mode 100644
index 0c5386e72098..000000000000
--- a/arch/nds32/kernel/atl2c.c
+++ /dev/null
@@ -1,65 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-// Copyright (C) 2005-2017 Andes Technology Corporation
-
-#include <linux/compiler.h>
-#include <linux/of_address.h>
-#include <linux/of_fdt.h>
-#include <linux/of_platform.h>
-#include <asm/l2_cache.h>
-
-void __iomem *atl2c_base;
-static const struct of_device_id atl2c_ids[] __initconst = {
- {.compatible = "andestech,atl2c",},
- {}
-};
-
-static int __init atl2c_of_init(void)
-{
- struct device_node *np;
- struct resource res;
- unsigned long tmp = 0;
- unsigned long l2set, l2way, l2clsz;
-
- if (!(__nds32__mfsr(NDS32_SR_MSC_CFG) & MSC_CFG_mskL2C))
- return -ENODEV;
-
- np = of_find_matching_node(NULL, atl2c_ids);
- if (!np)
- return -ENODEV;
-
- if (of_address_to_resource(np, 0, &res))
- return -ENODEV;
-
- atl2c_base = ioremap(res.start, resource_size(&res));
- if (!atl2c_base)
- return -ENOMEM;
-
- l2set =
- 64 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2SET) >>
- L2_CA_CONF_offL2SET);
- l2way =
- 1 +
- ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2WAY) >>
- L2_CA_CONF_offL2WAY);
- l2clsz =
- 4 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2CLSZ) >>
- L2_CA_CONF_offL2CLSZ);
- pr_info("L2:%luKB/%luS/%luW/%luB\n",
- l2set * l2way * l2clsz / 1024, l2set, l2way, l2clsz);
-
- tmp = L2C_R_REG(L2CC_PROT_OFF);
- tmp &= ~L2CC_PROT_mskMRWEN;
- L2C_W_REG(L2CC_PROT_OFF, tmp);
-
- tmp = L2C_R_REG(L2CC_SETUP_OFF);
- tmp &= ~L2CC_SETUP_mskPART;
- L2C_W_REG(L2CC_SETUP_OFF, tmp);
-
- tmp = L2C_R_REG(L2CC_CTRL_OFF);
- tmp |= L2CC_CTRL_mskEN;
- L2C_W_REG(L2CC_CTRL_OFF, tmp);
-
- return 0;
-}
-
-subsys_initcall(atl2c_of_init);