diff options
| -rw-r--r-- | arch/arm/mm/cache-l2x0.c | 109 |
1 files changed, 52 insertions, 57 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 4d985c1..e3f4fcb 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -385,17 +385,10 @@ static void l2x0_enable(void __iomem *base, u32 aux, unsigned num_lock) static void l2x0_resume(void) { - if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { - /* restore aux ctrl and enable l2 */ - l2x0_unlock(readl_relaxed(l2x0_base + L2X0_CACHE_ID)); - - writel_relaxed(l2x0_saved_regs.aux_ctrl, l2x0_base + - L2X0_AUX_CTRL); - - l2x0_inv_all(); + void __iomem *base = l2x0_base; - writel_relaxed(L2X0_CTRL_EN, l2x0_base + L2X0_CTRL); - } + if (!(readl_relaxed(base + L2X0_CTRL) & L2X0_CTRL_EN)) + l2x0_enable(base, l2x0_saved_regs.aux_ctrl, 0); } static const struct l2c_init_data l2x0_init_fns __initconst = { @@ -438,10 +431,9 @@ static const struct l2c_init_data l2x0_init_fns __initconst = { * Affects: store buffer * store buffer is not automatically drained. */ -static void __init pl310_save(void __iomem *base) +static void __init l2c310_save(void __iomem *base) { - u32 l2x0_revision = readl_relaxed(base + L2X0_CACHE_ID) & - L2X0_CACHE_ID_RTL_MASK; + unsigned revision; l2x0_saved_regs.tag_latency = readl_relaxed(base + L2X0_TAG_LATENCY_CTRL); @@ -452,49 +444,49 @@ static void __init pl310_save(void __iomem *base) l2x0_saved_regs.filter_start = readl_relaxed(base + L2X0_ADDR_FILTER_START); - if (l2x0_revision >= L310_CACHE_ID_RTL_R2P0) { - /* - * From r2p0, there is Prefetch offset/control register - */ + revision = readl_relaxed(base + L2X0_CACHE_ID) & + L2X0_CACHE_ID_RTL_MASK; + + /* From r2p0, there is Prefetch offset/control register */ + if (revision >= L310_CACHE_ID_RTL_R2P0) l2x0_saved_regs.prefetch_ctrl = readl_relaxed(base + - L2X0_PREFETCH_CTRL); - /* - * From r3p0, there is Power control register - */ - if (l2x0_revision >= L310_CACHE_ID_RTL_R3P0) - l2x0_saved_regs.pwr_ctrl = readl_relaxed(base + - L2X0_POWER_CTRL); - } + L2X0_PREFETCH_CTRL); + + /* From r3p0, there is Power control register */ + if (revision >= L310_CACHE_ID_RTL_R3P0) + l2x0_saved_regs.pwr_ctrl = readl_relaxed(base + + L2X0_POWER_CTRL); } -static void pl310_resume(void) +static void l2c310_resume(void) { - u32 l2x0_revision; + void __iomem *base = l2x0_base; + + if (!(readl_relaxed(base + L2X0_CTRL) & L2X0_CTRL_EN)) { + unsigned revision; - if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { /* restore pl310 setup */ writel_relaxed(l2x0_saved_regs.tag_latency, - l2x0_base + L2X0_TAG_LATENCY_CTRL); + base + L2X0_TAG_LATENCY_CTRL); writel_relaxed(l2x0_saved_regs.data_latency, - l2x0_base + L2X0_DATA_LATENCY_CTRL); + base + L2X0_DATA_LATENCY_CTRL); writel_relaxed(l2x0_saved_regs.filter_end, - l2x0_base + L2X0_ADDR_FILTER_END); + base + L2X0_ADDR_FILTER_END); writel_relaxed(l2x0_saved_regs.filter_start, - l2x0_base + L2X0_ADDR_FILTER_START); + base + L2X0_ADDR_FILTER_START); - l2x0_revision = readl_relaxed(l2x0_base + L2X0_CACHE_ID) & - L2X0_CACHE_ID_RTL_MASK; + revision = readl_relaxed(base + L2X0_CACHE_ID) & + L2X0_CACHE_ID_RTL_MASK; - if (l2x0_revision >= L310_CACHE_ID_RTL_R2P0) { + if (revision >= L310_CACHE_ID_RTL_R2P0) writel_relaxed(l2x0_saved_regs.prefetch_ctrl, - l2x0_base + L2X0_PREFETCH_CTRL); - if (l2x0_revision >= L310_CACHE_ID_RTL_R3P0) - writel_relaxed(l2x0_saved_regs.pwr_ctrl, - l2x0_base + L2X0_POWER_CTRL); - } - } + base + L2X0_PREFETCH_CTRL); + if (revision >= L310_CACHE_ID_RTL_R3P0) + writel_relaxed(l2x0_saved_regs.pwr_ctrl, + base + L2X0_POWER_CTRL); - l2x0_resume(); + l2c_enable(base, l2x0_saved_regs.aux_ctrl, 8); + } } static void __init l2c310_fixup(void __iomem *base, u32 cache_id, @@ -530,7 +522,7 @@ static const struct l2c_init_data l2c310_init_fns __initconst = { .num_lock = 8, .enable = l2c_enable, .fixup = l2c310_fixup, - .save = pl310_save, + .save = l2c310_save, .outer_cache = { .inv_range = l2x0_inv_range, .clean_range = l2x0_clean_range, @@ -538,7 +530,7 @@ static const struct l2c_init_data l2c310_init_fns __initconst = { .flush_all = l2x0_flush_all, .disable = l2x0_disable, .sync = l2x0_cache_sync, - .resume = pl310_resume, + .resume = l2c310_resume, }, }; @@ -744,7 +736,7 @@ static const struct l2c_init_data of_pl310_data __initconst = { .of_parse = pl310_of_parse, .enable = l2c_enable, .fixup = l2c310_fixup, - .save = pl310_save, + .save = l2c310_save, .outer_cache = { .inv_range = l2x0_inv_range, .clean_range = l2x0_clean_range, @@ -752,7 +744,7 @@ static const struct l2c_init_data of_pl310_data __initconst = { .flush_all = l2x0_flush_all, .disable = l2x0_disable, .sync = l2x0_cache_sync, - .resume = pl310_resume, + .resume = l2c310_resume, }, }; @@ -862,10 +854,11 @@ static void aurora_save(void __iomem *base) static void aurora_resume(void) { - if (!(readl(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { - writel_relaxed(l2x0_saved_regs.aux_ctrl, - l2x0_base + L2X0_AUX_CTRL); - writel_relaxed(l2x0_saved_regs.ctrl, l2x0_base + L2X0_CTRL); + void __iomem *base = l2x0_base; + + if (!(readl(base + L2X0_CTRL) & L2X0_CTRL_EN)) { + writel_relaxed(l2x0_saved_regs.aux_ctrl, base + L2X0_AUX_CTRL); + writel_relaxed(l2x0_saved_regs.ctrl, base + L2X0_CTRL); } } @@ -1089,7 +1082,7 @@ static const struct l2c_init_data of_bcm_l2x0_data __initconst = { .of_parse = pl310_of_parse, .enable = l2c_enable, .fixup = l2c310_fixup, - .save = pl310_save, + .save = l2c310_save, .outer_cache = { .inv_range = bcm_inv_range, .clean_range = bcm_clean_range, @@ -1097,7 +1090,7 @@ static const struct l2c_init_data of_bcm_l2x0_data __initconst = { .flush_all = l2x0_flush_all, .disable = l2x0_disable, .sync = l2x0_cache_sync, - .resume = pl310_resume, + .resume = l2c310_resume, }, }; @@ -1111,14 +1104,16 @@ static void __init tauros3_save(void __iomem *base) static void tauros3_resume(void) { - if (!(readl_relaxed(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { + void __iomem *base = l2x0_base; + + if (!(readl_relaxed(base + L2X0_CTRL) & L2X0_CTRL_EN)) { writel_relaxed(l2x0_saved_regs.aux2_ctrl, - l2x0_base + TAUROS3_AUX2_CTRL); + base + TAUROS3_AUX2_CTRL); writel_relaxed(l2x0_saved_regs.prefetch_ctrl, - l2x0_base + L2X0_PREFETCH_CTRL); - } + base + L2X0_PREFETCH_CTRL); - l2x0_resume(); + l2c_enable(base, l2x0_saved_regs.aux_ctrl, 8); + } } static const struct l2c_init_data of_tauros3_data __initconst = { |