Merge branch 'CR_4563_memcpy_samin.guo' into 'jh7110-master'

CR4563:Configure the l2 prefetcher parameter

See merge request sdk/u-boot!48
This commit is contained in:
andy.hu 2023-04-07 11:30:48 +00:00
commit 6f85c682b9
3 changed files with 103 additions and 22 deletions

View file

@ -71,6 +71,16 @@
};
};
&cachectrl {
reg = <0x0 0x2010000 0x0 0x4000>,
<0x0 0x2030000 0x0 0x80000>,
<0x0 0x8000000 0x0 0x2000000>;
reg-names = "control", "prefetcher", "sideband";
prefetch-dist-size = <0x4>;
prefetch-hart-mask = <0x1e>;
prefetch-enable;
};
&uart0 {
clock-frequency = <24000000>;
current-speed = <115200>;

View file

@ -238,32 +238,10 @@ static void get_cpu_voltage_type(struct udevice *dev)
}
#endif
/*enable U74-mc hart1~hart4 prefetcher*/
static void enable_prefetcher(void)
{
u32 hart;
u32 *reg;
#define L2_PREFETCHER_BASE_ADDR 0x2030000
#define L2_PREFETCHER_OFFSET 0x2000
/*hart1~hart4*/
for (hart = 1; hart < 5; hart++) {
reg = (u32 *)((u64)(L2_PREFETCHER_BASE_ADDR
+ hart*L2_PREFETCHER_OFFSET));
mb(); /* memory barrier */
setbits_le32(reg, 0x1);
mb(); /* memory barrier */
}
}
int board_init(void)
{
enable_caches();
/*enable hart1-hart4 prefetcher*/
enable_prefetcher();
jh7110_timer_init();
jh7110_usb_init(true);

View file

@ -15,10 +15,96 @@
#define SIFIVE_CCACHE_WAY_ENABLE 0x008
/* Prefetch */
#define SIFIVE_PREFET_HARD_BASE(hart) ((hart)*0x2000)
/* Prefetch Control Register */
#define SIFIVE_PREFT_EN_MASK BIT(0)
#define SIFIVE_PREFT_CROSS_PAGE_DIS_MASK BIT(1)
#define SIFIVE_PREFT_DIST_MASK GENMASK(7, 2)
#define SIFIVE_PREFT_MAX_ALLOC_DIST_MASK GENMASK(13, 8)
#define SIFIVE_PREFT_LIN_TO_EXP_THRD_MASK GENMASK(19, 14)
#define SIFIVE_PREFT_AGE_OUT_EN_MASK BIT(20)
#define SIFIVE_PREFT_NUM_LDS_AGE_OUT_MASK GENMASK(27, 21)
#define SIFIVE_PREFT_CROSS_PAGE_EN_MASK BIT(28)
/* Prefetch Advanced Control Register */
#define SIFIVE_PREFT_ADV_Q_FULL_THRD GENMASK(3, 0)
#define SIFIVE_PREFT_ADV_HIT_CACHE_THRD GENMASK(8, 4)
#define SIFIVE_PREFT_ADV_HIT_MSHR_THRD GENMASK(12, 9)
#define SIFIVE_PREFT_ADV_WINDOW_MASK GENMASK(18, 13)
#define SIFIVE_PREFET_HARD_MASK 0x1e
#define SIFIVE_MAX_HART_ID 0x20
#define SIFIVE_PREFT_DIST_VAL 0x3
#define SIFIVE_PREFT_DIST_MAX 0x3f
#define SIFIVE_PREFT_EN 0x1
struct sifive_ccache {
void __iomem *base;
void __iomem *pre_base;
u32 pre_hart_mask;
u32 pre_dist_size;
};
static int sifive_prefetcher_parse(struct udevice *dev)
{
struct sifive_ccache *priv = dev_get_priv(dev);
if (!priv->pre_base)
return -EINVAL;
if (!dev_read_bool(dev, "prefetch-enable"))
return -ENOENT;
priv->pre_hart_mask = dev_read_u32_default(dev, "prefetch-hart-mask",
SIFIVE_PREFET_HARD_MASK);
priv->pre_dist_size = dev_read_u32_default(dev, "prefetch-dist-size",
SIFIVE_PREFT_DIST_VAL);
return 0;
}
static void sifive_prefetcher_cfg_by_id(struct udevice *dev, u32 hart)
{
struct sifive_ccache *priv = dev_get_priv(dev);
void __iomem *reg;
u32 val;
/* Prefetch Control Register */
reg = priv->pre_base + SIFIVE_PREFET_HARD_BASE(hart);
val = readl(reg);
val &= ~SIFIVE_PREFT_MAX_ALLOC_DIST_MASK;
val |= SIFIVE_PREFT_DIST_MAX << __ffs(SIFIVE_PREFT_MAX_ALLOC_DIST_MASK);
writel(val, reg);
val = readl(reg);
val &= ~SIFIVE_PREFT_DIST_MASK;
val |= priv->pre_dist_size << __ffs(SIFIVE_PREFT_DIST_MASK);
writel(val, reg);
val |= SIFIVE_PREFT_EN << __ffs(SIFIVE_PREFT_EN_MASK);
writel(val, reg);
}
static int sifive_prefetcher_enable(struct udevice *dev)
{
struct sifive_ccache *priv = dev_get_priv(dev);
u32 hart;
int ret;
ret = sifive_prefetcher_parse(dev);
if (ret)
return ret;
for (hart = 0; hart < SIFIVE_MAX_HART_ID; hart++) {
if (BIT(hart) & priv->pre_hart_mask)
sifive_prefetcher_cfg_by_id(dev, hart);
}
return 0;
}
static int sifive_ccache_enable(struct udevice *dev)
{
struct sifive_ccache *priv = dev_get_priv(dev);
@ -31,6 +117,8 @@ static int sifive_ccache_enable(struct udevice *dev)
writel(ways - 1, priv->base + SIFIVE_CCACHE_WAY_ENABLE);
sifive_prefetcher_enable(dev);
return 0;
}
@ -51,11 +139,16 @@ static const struct cache_ops sifive_ccache_ops = {
static int sifive_ccache_probe(struct udevice *dev)
{
struct sifive_ccache *priv = dev_get_priv(dev);
fdt_addr_t addr;
priv->base = dev_read_addr_ptr(dev);
if (!priv->base)
return -EINVAL;
addr = dev_read_addr_name(dev, "prefetcher");
if (addr != FDT_ADDR_T_NONE)
priv->pre_base = (void *)(uintptr_t)addr;
return 0;
}