This patch splits the early init code in a common and a tegra20 specific part. L2 cache initialization is generalized and discovers the cache associativity at runtime. Also use arm_pm_restart instead of arm_arch_reset and reset the the system using the PMC reset feature rather then the CAR system reset.
Signed-off-by: Peter De Schrijver <[email protected]> --- arch/arm/mach-tegra/board-dt.c | 10 +++++--- arch/arm/mach-tegra/board-harmony.c | 2 +- arch/arm/mach-tegra/board-paz00.c | 2 +- arch/arm/mach-tegra/board-seaboard.c | 6 ++-- arch/arm/mach-tegra/board-trimslice.c | 2 +- arch/arm/mach-tegra/board.h | 2 +- arch/arm/mach-tegra/clock.c | 5 ---- arch/arm/mach-tegra/common.c | 34 ++++++++++++++++++++------------ 8 files changed, 34 insertions(+), 29 deletions(-) diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt.c index 6a460a2..ef9843c 100644 --- a/arch/arm/mach-tegra/board-dt.c +++ b/arch/arm/mach-tegra/board-dt.c @@ -133,7 +133,8 @@ static void __init tegra_dt_init(void) "Unknown platform! Pinmuxing not initialized\n"); } -static const char * tegra_dt_board_compat[] = { +#ifdef CONFIG_ARCH_TEGRA_2x_SOC +static const char *tegra20_dt_board_compat[] = { "compulab,trimslice", "nvidia,harmony", "compal,paz00", @@ -142,13 +143,14 @@ static const char * tegra_dt_board_compat[] = { NULL }; -DT_MACHINE_START(TEGRA_DT, "nVidia Tegra (Flattened Device Tree)") +DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)") .map_io = tegra_map_common_io, - .init_early = tegra_init_early, + .init_early = tegra20_init_early, .init_irq = tegra_dt_init_irq, .handle_irq = gic_handle_irq, .timer = &tegra_timer, .init_machine = tegra_dt_init, .restart = tegra_assert_system_reset, - .dt_compat = tegra_dt_board_compat, + .dt_compat = tegra20_dt_board_compat, MACHINE_END +#endif diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c index 70ee674..a0f9634 100644 --- a/arch/arm/mach-tegra/board-harmony.c +++ b/arch/arm/mach-tegra/board-harmony.c @@ -186,7 +186,7 @@ MACHINE_START(HARMONY, "harmony") .atag_offset = 0x100, .fixup = tegra_harmony_fixup, .map_io = tegra_map_common_io, - .init_early = tegra_init_early, + .init_early = tegra20_init_early, .init_irq = tegra_init_irq, .handle_irq = gic_handle_irq, .timer = &tegra_timer, diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c index 1f563dd..fcf4f37 100644 --- a/arch/arm/mach-tegra/board-paz00.c +++ b/arch/arm/mach-tegra/board-paz00.c @@ -216,7 +216,7 @@ MACHINE_START(PAZ00, "Toshiba AC100 / Dynabook AZ") .atag_offset = 0x100, .fixup = tegra_paz00_fixup, .map_io = tegra_map_common_io, - .init_early = tegra_init_early, + .init_early = tegra20_init_early, .init_irq = tegra_init_irq, .handle_irq = gic_handle_irq, .timer = &tegra_timer, diff --git a/arch/arm/mach-tegra/board-seaboard.c b/arch/arm/mach-tegra/board-seaboard.c index c1599eb..cfc74d4 100644 --- a/arch/arm/mach-tegra/board-seaboard.c +++ b/arch/arm/mach-tegra/board-seaboard.c @@ -283,7 +283,7 @@ static void __init tegra_wario_init(void) MACHINE_START(SEABOARD, "seaboard") .atag_offset = 0x100, .map_io = tegra_map_common_io, - .init_early = tegra_init_early, + .init_early = tegra20_init_early, .init_irq = tegra_init_irq, .handle_irq = gic_handle_irq, .timer = &tegra_timer, @@ -294,7 +294,7 @@ MACHINE_END MACHINE_START(KAEN, "kaen") .atag_offset = 0x100, .map_io = tegra_map_common_io, - .init_early = tegra_init_early, + .init_early = tegra20_init_early, .init_irq = tegra_init_irq, .handle_irq = gic_handle_irq, .timer = &tegra_timer, @@ -305,7 +305,7 @@ MACHINE_END MACHINE_START(WARIO, "wario") .atag_offset = 0x100, .map_io = tegra_map_common_io, - .init_early = tegra_init_early, + .init_early = tegra20_init_early, .init_irq = tegra_init_irq, .handle_irq = gic_handle_irq, .timer = &tegra_timer, diff --git a/arch/arm/mach-tegra/board-trimslice.c b/arch/arm/mach-tegra/board-trimslice.c index c242314..cd52820 100644 --- a/arch/arm/mach-tegra/board-trimslice.c +++ b/arch/arm/mach-tegra/board-trimslice.c @@ -175,7 +175,7 @@ MACHINE_START(TRIMSLICE, "trimslice") .atag_offset = 0x100, .fixup = tegra_trimslice_fixup, .map_io = tegra_map_common_io, - .init_early = tegra_init_early, + .init_early = tegra20_init_early, .init_irq = tegra_init_irq, .handle_irq = gic_handle_irq, .timer = &tegra_timer, diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h index 1d14df7..c268cfa 100644 --- a/arch/arm/mach-tegra/board.h +++ b/arch/arm/mach-tegra/board.h @@ -25,7 +25,7 @@ void tegra_assert_system_reset(char mode, const char *cmd); -void __init tegra_init_early(void); +void __init tegra20_init_early(void); void __init tegra_map_common_io(void); void __init tegra_init_irq(void); void __init tegra_init_clock(void); diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c index f27bdcc..f25b7e5 100644 --- a/arch/arm/mach-tegra/clock.c +++ b/arch/arm/mach-tegra/clock.c @@ -399,11 +399,6 @@ void tegra_periph_reset_assert(struct clk *c) } EXPORT_SYMBOL(tegra_periph_reset_assert); -void __init tegra_init_clock(void) -{ - tegra2_init_clocks(); -} - /* * The SDMMC controllers on tegra20 have extra bits in the clock source * register that adjust the delay between the clock and data to compenstate diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index 20f396d..5b711ad 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -1,5 +1,5 @@ /* - * arch/arm/mach-tegra/board-harmony.c + * arch/arm/mach-tegra/common.c * * Copyright (C) 2010 Google, Inc. * @@ -33,16 +33,16 @@ void tegra_assert_system_reset(char mode, const char *cmd) { - void __iomem *reset = IO_ADDRESS(TEGRA_CLK_RESET_BASE + 0x04); + void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0); u32 reg; - /* use *_related to avoid spinlock since caches are off */ reg = readl_relaxed(reset); - reg |= 0x04; + reg |= 0x10; writel_relaxed(reg, reset); } -static __initdata struct tegra_clk_init_table common_clk_init_table[] = { +#ifdef CONFIG_ARCH_TEGRA_2x_SOC +static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = { /* name parent rate enabled */ { "clk_m", NULL, 0, true }, { "pll_p", "clk_m", 216000000, true }, @@ -58,24 +58,32 @@ static __initdata struct tegra_clk_init_table common_clk_init_table[] = { { "cpu", NULL, 0, true }, { NULL, NULL, 0, 0}, }; +#endif -static void __init tegra_init_cache(void) +static void __init tegra_init_cache(u32 tag_latency, u32 data_latency) { #ifdef CONFIG_CACHE_L2X0 void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000; + u32 aux_ctrl, cache_type; + + writel_relaxed(tag_latency, p + L2X0_TAG_LATENCY_CTRL); + writel_relaxed(data_latency, p + L2X0_DATA_LATENCY_CTRL); - writel_relaxed(0x331, p + L2X0_TAG_LATENCY_CTRL); - writel_relaxed(0x441, p + L2X0_DATA_LATENCY_CTRL); + cache_type = readl(p + L2X0_CACHE_TYPE); + aux_ctrl = (cache_type & 0x700) << (17-8); + aux_ctrl |= 0x6C000001; - l2x0_init(p, 0x6C080001, 0x8200c3fe); + l2x0_init(p, aux_ctrl, 0x8200c3fe); #endif } -void __init tegra_init_early(void) +#ifdef CONFIG_ARCH_TEGRA_2x_SOC +void __init tegra20_init_early(void) { tegra_init_fuse(); - tegra_init_clock(); - tegra_clk_init_from_table(common_clk_init_table); - tegra_init_cache(); + tegra2_init_clocks(); + tegra_clk_init_from_table(tegra20_clk_init_table); + tegra_init_cache(0x331, 0x441); } +#endif -- 1.7.7.rc0.72.g4b5ea.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
