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author | Tom Warren <twarren@nvidia.com> | 2015-03-04 23:36:00 (GMT) |
---|---|---|
committer | Tom Warren <twarren@nvidia.com> | 2015-07-28 17:30:20 (GMT) |
commit | 7aaa5a60cec8c0f139c8be5fea7d639e06a0f88e (patch) | |
tree | 677f1285e60b87ed648e5186f5235999c87aba30 /arch/arm/mach-tegra/cpu.c | |
parent | 6c43f6c8d920caa1db01f5d0571a4d9ba720be15 (diff) | |
download | u-boot-7aaa5a60cec8c0f139c8be5fea7d639e06a0f88e.tar.xz |
ARM: Tegra210: Add support to common Tegra source/config files
Derived from Tegra124, modified as appropriate during T210
board bringup. Cleaned up debug statements to conserve
string space, too. This also adds misc 64-bit changes
from Thierry Reding/Stephen Warren.
Signed-off-by: Tom Warren <twarren@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/cpu.c')
-rw-r--r-- | arch/arm/mach-tegra/cpu.c | 55 |
1 files changed, 39 insertions, 16 deletions
diff --git a/arch/arm/mach-tegra/cpu.c b/arch/arm/mach-tegra/cpu.c index c6f3b02..f7d45e8 100644 --- a/arch/arm/mach-tegra/cpu.c +++ b/arch/arm/mach-tegra/cpu.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2010-2014, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2010-2015, NVIDIA CORPORATION. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, @@ -29,6 +29,7 @@ int get_num_cpus(void) { struct apb_misc_gp_ctlr *gp; uint rev; + debug("%s entry\n", __func__); gp = (struct apb_misc_gp_ctlr *)NV_PA_APB_MISC_GP_BASE; rev = (readl(&gp->hidrev) & HIDREV_CHIPID_MASK) >> HIDREV_CHIPID_SHIFT; @@ -39,6 +40,8 @@ int get_num_cpus(void) break; case CHIPID_TEGRA30: case CHIPID_TEGRA114: + case CHIPID_TEGRA124: + case CHIPID_TEGRA210: default: return 4; break; @@ -128,13 +131,30 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = { { .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */ { .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */ }, + + /* + * T210: 700 MHz + * + * Register Field Bits Width + * ------------------------------ + * PLLX_BASE p 24:20 5 + * PLLX_BASE n 15: 8 8 + * PLLX_BASE m 7: 0 8 + */ + { + { .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz = 702 MHz*/ + { .n = 73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz = 700.8 MHz*/ + { .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz = 696 MHz*/ + { .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz = 702 MHz*/ + }, }; static inline void pllx_set_iddq(void) { -#if defined(CONFIG_TEGRA124) +#if defined(CONFIG_TEGRA124) || defined(CONFIG_TEGRA210) struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; u32 reg; + debug("%s entry\n", __func__); /* Disable IDDQ */ reg = readl(&clkrst->crc_pllx_misc3); @@ -151,15 +171,14 @@ int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm, { int chip = tegra_get_chip(); u32 reg; + debug("%s entry\n", __func__); /* If PLLX is already enabled, just return */ if (readl(&pll->pll_base) & PLL_ENABLE_MASK) { - debug("pllx_set_rate: PLLX already enabled, returning\n"); + debug("%s: PLLX already enabled, returning\n", __func__); return 0; } - debug(" pllx_set_rate entry\n"); - pllx_set_iddq(); /* Set BYPASS, m, n and p to PLLX_BASE */ @@ -182,19 +201,19 @@ int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm, reg = readl(&pll->pll_base); reg &= ~PLL_BYPASS_MASK; writel(reg, &pll->pll_base); - debug("pllx_set_rate: base = 0x%08X\n", reg); + debug("%s: base = 0x%08X\n", __func__, reg); /* Set lock_enable to PLLX_MISC */ reg = readl(&pll->pll_misc); reg |= PLL_LOCK_ENABLE_MASK; writel(reg, &pll->pll_misc); - debug("pllx_set_rate: misc = 0x%08X\n", reg); + debug("%s: misc = 0x%08X\n", __func__, reg); /* Enable PLLX last, once it's all configured */ reg = readl(&pll->pll_base); reg |= PLL_ENABLE_MASK; writel(reg, &pll->pll_base); - debug("pllx_set_rate: base final = 0x%08X\n", reg); + debug("%s: base final = 0x%08X\n", __func__, reg); return 0; } @@ -206,24 +225,23 @@ void init_pllx(void) int soc_type, sku_info, chip_sku; enum clock_osc_freq osc; struct clk_pll_table *sel; - - debug("init_pllx entry\n"); + debug("%s entry\n", __func__); /* get SOC (chip) type */ soc_type = tegra_get_chip(); - debug(" init_pllx: SoC = 0x%02X\n", soc_type); + debug("%s: SoC = 0x%02X\n", __func__, soc_type); /* get SKU info */ sku_info = tegra_get_sku_info(); - debug(" init_pllx: SKU info byte = 0x%02X\n", sku_info); + debug("%s: SKU info byte = 0x%02X\n", __func__, sku_info); /* get chip SKU, combo of the above info */ chip_sku = tegra_get_chip_sku(); - debug(" init_pllx: Chip SKU = %d\n", chip_sku); + debug("%s: Chip SKU = %d\n", __func__, chip_sku); /* get osc freq */ osc = clock_get_osc_freq(); - debug(" init_pllx: osc = %d\n", osc); + debug("%s: osc = %d\n", __func__, osc); /* set pllx */ sel = &tegra_pll_x_table[chip_sku][osc]; @@ -234,6 +252,7 @@ void enable_cpu_clock(int enable) { struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE; u32 clk; + debug("%s entry\n", __func__); /* * NOTE: @@ -282,6 +301,7 @@ static void remove_cpu_io_clamps(void) { struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; u32 reg; + debug("%s entry\n", __func__); /* Remove the clamps on the CPU I/O signals */ reg = readl(&pmc->pmc_remove_clamping); @@ -297,6 +317,7 @@ void powerup_cpu(void) struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE; u32 reg; int timeout = IO_STABILIZATION_DELAY; + debug("%s entry\n", __func__); if (!is_cpu_powered()) { /* Toggle the CPU power state (OFF -> ON) */ @@ -336,7 +357,7 @@ void reset_A9_cpu(int reset) int num_cpus = get_num_cpus(); int cpu; - debug("reset_a9_cpu entry\n"); + debug("%s entry\n", __func__); /* Hold CPUs 1 onwards in reset, and CPU 0 if asked */ for (cpu = 1; cpu < num_cpus; cpu++) reset_cmplx_set_enable(cpu, mask, 1); @@ -350,7 +371,7 @@ void clock_enable_coresight(int enable) { u32 rst, src = 2; - debug("clock_enable_coresight entry\n"); + debug("%s entry\n", __func__); clock_set_enable(PERIPH_ID_CORESIGHT, enable); reset_set_enable(PERIPH_ID_CORESIGHT, !enable); @@ -377,6 +398,8 @@ void clock_enable_coresight(int enable) void halt_avp(void) { + debug("%s entry\n", __func__); + for (;;) { writel(HALT_COP_EVENT_JTAG | (FLOW_MODE_STOP << 29), FLOW_CTLR_HALT_COP_EVENTS); |