Invokes the generic cache_enable interface to execute the relative implementation in SiFive ccache driver.
Signed-off-by: Zong Li zong.li@sifive.com --- arch/riscv/cpu/fu540/Kconfig | 1 + arch/riscv/cpu/fu540/cache.c | 62 ++++++++--------------- arch/riscv/cpu/fu740/Kconfig | 1 + arch/riscv/cpu/fu740/cache.c | 60 +++++++--------------- arch/riscv/include/asm/arch-fu540/cache.h | 2 +- arch/riscv/include/asm/arch-fu740/cache.h | 2 +- board/sifive/unleashed/unleashed.c | 10 +--- board/sifive/unmatched/unmatched.c | 9 +--- 8 files changed, 45 insertions(+), 102 deletions(-)
diff --git a/arch/riscv/cpu/fu540/Kconfig b/arch/riscv/cpu/fu540/Kconfig index 05463b2625..1f50b823ed 100644 --- a/arch/riscv/cpu/fu540/Kconfig +++ b/arch/riscv/cpu/fu540/Kconfig @@ -19,6 +19,7 @@ config SIFIVE_FU540 imply SMP imply CLK_SIFIVE imply CLK_SIFIVE_PRCI + imply SIFIVE_CACHE_CCACHE imply SIFIVE_SERIAL imply MACB imply MII diff --git a/arch/riscv/cpu/fu540/cache.c b/arch/riscv/cpu/fu540/cache.c index 0fc4ef6c00..3c754c4614 100644 --- a/arch/riscv/cpu/fu540/cache.c +++ b/arch/riscv/cpu/fu540/cache.c @@ -1,55 +1,33 @@ // SPDX-License-Identifier: GPL-2.0+ /* - * Copyright (C) 2020 SiFive, Inc + * Copyright (C) 2020 - 2021 SiFive, Inc * * Authors: * Pragnesh Patel pragnesh.patel@sifive.com */
#include <common.h> -#include <asm/global_data.h> -#include <asm/io.h> -#include <linux/bitops.h> +#include <cache.h> +#include <dm.h>
-/* Register offsets */ -#define L2_CACHE_CONFIG 0x000 -#define L2_CACHE_ENABLE 0x008 - -#define MASK_NUM_WAYS GENMASK(15, 8) -#define NUM_WAYS_SHIFT 8 - -DECLARE_GLOBAL_DATA_PTR; - -int cache_enable_ways(void) +int sifive_ccache_enable_ways(void) { - const void *blob = gd->fdt_blob; - int node; - fdt_addr_t base; - u32 config; - u32 ways; - - volatile u32 *enable; - - node = fdt_node_offset_by_compatible(blob, -1, - "sifive,fu540-c000-ccache"); - - if (node < 0) - return node; - - base = fdtdec_get_addr_size_auto_parent(blob, 0, node, "reg", 0, - NULL, false); - if (base == FDT_ADDR_T_NONE) - return FDT_ADDR_T_NONE; - - config = readl((volatile u32 *)base + L2_CACHE_CONFIG); - ways = (config & MASK_NUM_WAYS) >> NUM_WAYS_SHIFT; - - enable = (volatile u32 *)(base + L2_CACHE_ENABLE); + struct udevice *dev; + int ret; + + ret = uclass_get_device_by_driver(UCLASS_CACHE, + DM_DRIVER_GET(sifive_ccache), + &dev); + if (ret) { + pr_debug("%s: could not enable cache ways\n", __func__); + return ret; + } + + ret = cache_enable(dev); + if (ret) { + pr_debug("%s: ccache enable filed\n", __func__); + return ret; + }
- /* memory barrier */ - mb(); - (*enable) = ways - 1; - /* memory barrier */ - mb(); return 0; } diff --git a/arch/riscv/cpu/fu740/Kconfig b/arch/riscv/cpu/fu740/Kconfig index 8e54310b9c..87d8016c88 100644 --- a/arch/riscv/cpu/fu740/Kconfig +++ b/arch/riscv/cpu/fu740/Kconfig @@ -19,6 +19,7 @@ config SIFIVE_FU740 imply SMP imply CLK_SIFIVE imply CLK_SIFIVE_PRCI + imply SIFIVE_CACHE_CCACHE imply SIFIVE_SERIAL imply MACB imply MII diff --git a/arch/riscv/cpu/fu740/cache.c b/arch/riscv/cpu/fu740/cache.c index 680955c9e3..1d6c295d98 100644 --- a/arch/riscv/cpu/fu740/cache.c +++ b/arch/riscv/cpu/fu740/cache.c @@ -7,49 +7,27 @@ */
#include <common.h> -#include <asm/io.h> -#include <linux/bitops.h> -#include <asm/global_data.h> +#include <cache.h> +#include <dm.h>
-/* Register offsets */ -#define L2_CACHE_CONFIG 0x000 -#define L2_CACHE_ENABLE 0x008 - -#define MASK_NUM_WAYS GENMASK(15, 8) -#define NUM_WAYS_SHIFT 8 - -DECLARE_GLOBAL_DATA_PTR; - -int cache_enable_ways(void) +int sifive_ccache_enable_ways(void) { - const void *blob = gd->fdt_blob; - int node; - fdt_addr_t base; - u32 config; - u32 ways; - - volatile u32 *enable; - - node = fdt_node_offset_by_compatible(blob, -1, - "sifive,fu740-c000-ccache"); - - if (node < 0) - return node; - - base = fdtdec_get_addr_size_auto_parent(blob, 0, node, "reg", 0, - NULL, false); - if (base == FDT_ADDR_T_NONE) - return FDT_ADDR_T_NONE; - - config = readl((volatile u32 *)base + L2_CACHE_CONFIG); - ways = (config & MASK_NUM_WAYS) >> NUM_WAYS_SHIFT; - - enable = (volatile u32 *)(base + L2_CACHE_ENABLE); + struct udevice *dev; + int ret; + + ret = uclass_get_device_by_driver(UCLASS_CACHE, + DM_DRIVER_GET(sifive_ccache), + &dev); + if (ret) { + pr_debug("%s: could not enable cache ways\n", __func__); + return ret; + } + + ret = cache_enable(dev); + if (ret) { + pr_debug("%s: ccache enable filed\n", __func__); + return ret; + }
- /* memory barrier */ - mb(); - (*enable) = ways - 1; - /* memory barrier */ - mb(); return 0; } diff --git a/arch/riscv/include/asm/arch-fu540/cache.h b/arch/riscv/include/asm/arch-fu540/cache.h index 135a17c679..c252eb64d1 100644 --- a/arch/riscv/include/asm/arch-fu540/cache.h +++ b/arch/riscv/include/asm/arch-fu540/cache.h @@ -9,6 +9,6 @@ #ifndef _CACHE_SIFIVE_H #define _CACHE_SIFIVE_H
-int cache_enable_ways(void); +int sifive_ccache_enable_ways(void);
#endif /* _CACHE_SIFIVE_H */ diff --git a/arch/riscv/include/asm/arch-fu740/cache.h b/arch/riscv/include/asm/arch-fu740/cache.h index 7d4fe9942b..8c456e3658 100644 --- a/arch/riscv/include/asm/arch-fu740/cache.h +++ b/arch/riscv/include/asm/arch-fu740/cache.h @@ -9,6 +9,6 @@ #ifndef _CACHE_SIFIVE_H #define _CACHE_SIFIVE_H
-int cache_enable_ways(void); +int sifive_ccache_enable_ways(void);
#endif /* _CACHE_SIFIVE_H */ diff --git a/board/sifive/unleashed/unleashed.c b/board/sifive/unleashed/unleashed.c index 43027f0b54..12e61ec85f 100644 --- a/board/sifive/unleashed/unleashed.c +++ b/board/sifive/unleashed/unleashed.c @@ -126,14 +126,6 @@ void *board_fdt_blob_setup(void)
int board_init(void) { - int ret; - /* enable all cache ways */ - ret = cache_enable_ways(); - if (ret) { - debug("%s: could not enable cache ways\n", __func__); - return ret; - } - - return 0; + return sifive_ccache_enable_ways(); } diff --git a/board/sifive/unmatched/unmatched.c b/board/sifive/unmatched/unmatched.c index 2f5629b578..d27c4d3e88 100644 --- a/board/sifive/unmatched/unmatched.c +++ b/board/sifive/unmatched/unmatched.c @@ -23,13 +23,6 @@ void *board_fdt_blob_setup(void)
int board_init(void) { - int ret; - /* enable all cache ways */ - ret = cache_enable_ways(); - if (ret) { - debug("%s: could not enable cache ways\n", __func__); - return ret; - } - return 0; + return sifive_ccache_enable_ways(); }