diff options
Diffstat (limited to 'src/soc/nvidia/tegra132/lp0')
| -rw-r--r-- | src/soc/nvidia/tegra132/lp0/Makefile | 54 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c | 687 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.ld | 69 |
3 files changed, 0 insertions, 810 deletions
diff --git a/src/soc/nvidia/tegra132/lp0/Makefile b/src/soc/nvidia/tegra132/lp0/Makefile deleted file mode 100644 index 34e9396e3f..0000000000 --- a/src/soc/nvidia/tegra132/lp0/Makefile +++ /dev/null @@ -1,54 +0,0 @@ -################################################################################ -## -## Copyright 2014 Google Inc. -## -## This program is free software; you can redistribute it and/or modify -## it under the terms of the GNU General Public License as published by -## the Free Software Foundation; version 2 of the License. -## -## This program is distributed in the hope that it will be useful, -## but WITHOUT ANY WARRANTY; without even the implied warranty of -## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -## GNU General Public License for more details. -## -################################################################################ - -CC = $(GCC_PREFIX)gcc -NM = $(GCC_PREFIX)nm -OBJCOPY = $(GCC_PREFIX)objcopy - -OPENSSL = openssl -DD = dd -CP = cp -MV = mv -RM = rm - -SIGKEY = 00000000000000000000000000000000 - -.PHONY: all -all: tegra_lp0_resume.fw - -tegra_lp0_resume.elf: tegra_lp0_resume.ld tegra_lp0_resume.c - $(CC) -marm -march=armv4t -mno-unaligned-access -nostdlib -static \ - -Os -fpie -Wl,--build-id=none -ggdb3 -T tegra_lp0_resume.ld \ - -o $@ $(filter %.c,$+) - -tegra_lp0_resume.fw: tegra_lp0_resume.elf - @# Get rid of any files we're about to create. - $(RM) -f $@.nosig $@.sig $@.tosig - @# Convert the ELF image into a binary image. - $(OBJCOPY) -O binary $< $@.nosig - @# Extract the part of the binary which needs to be signed. - $(DD) bs=1 skip=544 if=$@.nosig of=$@.tosig - @# Calculate a signature for that part. - $(OPENSSL) dgst -mac cmac -macopt cipher:aes-128-cbc \ - -macopt hexkey:$(SIGKEY) -md5 -binary \ - $@.tosig > $@.sig - @# Inject the signature into the binary image's header. - $(DD) conv=notrunc bs=1 seek=272 count=16 if=$@.sig of=$@.nosig - @# Copy the signed binary to the target file name. - $(MV) $@.nosig $@ - -clean: - $(RM) -f tegra_lp0_resume.fw tegra_lp0_resume.fw.sig - $(RM) -f tegra_lp0_resume.fw.tosig tegra_lp0_resume.elf diff --git a/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c b/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c deleted file mode 100644 index bd4e5c4218..0000000000 --- a/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.c +++ /dev/null @@ -1,687 +0,0 @@ -/* - * Copyright 2014 Google Inc. - * Copyright 2013, 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, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - */ - -#include <stdint.h> - -/* Function unit addresses. */ -enum { - UP_TAG_BASE = 0X60000000, - TIMER_BASE = 0X60005000, - CLK_RST_BASE = 0X60006000, - FLOW_CTLR_BASE = 0X60007000, - TEGRA_EVP_BASE = 0x6000f000, - APB_MISC_BASE = 0x70000000, - PMC_CTLR_BASE = 0X7000e400, - MC_CTLR_BASE = 0X70019000, -}; - - - -/* UP tag registers. */ -static uint32_t *up_tag_ptr = (void *)(UP_TAG_BASE + 0x0); -enum { - UP_TAG_AVP = 0xaaaaaaaa -}; - - -/* APB Misc JTAG Configuration Register */ -static uint32_t *misc_pp_config_ctl_ptr = (void *)(APB_MISC_BASE + 0x24); -enum { - PP_CONFIG_CTL_JTAG = 0x1 << 6 -}; - - -/* Timer registers. */ -static uint32_t *timer_us_ptr = (void *)(TIMER_BASE + 0x10); - - - -/* Clock and reset controller registers. */ -static uint32_t *clk_rst_rst_devices_l_ptr = (void *)(CLK_RST_BASE + 0x4); -enum { - SWR_TRIG_SYS_RST = 0x1 << 2 -}; - -static uint32_t *clk_rst_cclk_burst_policy_ptr = (void *)(CLK_RST_BASE + 0x20); -enum { - CCLK_PLLP_BURST_POLICY = 0x20004444 -}; - -static uint32_t *clk_rst_super_cclk_div_ptr = (void *)(CLK_RST_BASE + 0x24); -enum { - SUPER_CDIV_ENB = 0x1 << 31 -}; - -static uint32_t *clk_rst_osc_ctrl_ptr = (void *)(CLK_RST_BASE + 0x50); -enum { - OSC_XOE = 0x1 << 0, - OSC_XOFS_SHIFT = 4, - OSC_XOFS_MASK = 0x3f << OSC_XOFS_SHIFT, - OSC_FREQ_SHIFT = 28, - OSC_FREQ_MASK = 0xf << OSC_FREQ_SHIFT -}; -enum { - OSC_FREQ_13 = 0, - OSC_FREQ_16P8 = 1, - OSC_FREQ_19P2 = 4, - OSC_FREQ_38P4 = 5, - OSC_FREQ_12 = 8, - OSC_FREQ_48 = 9, - OSC_FREQ_26 = 12 -}; - -static uint32_t *clk_rst_pllu_base_ptr = (void *)(CLK_RST_BASE + 0xc0); -enum { - PLLU_DIVM_SHIFT = 0, - PLLU_DIVN_SHIFT = 8, - PLLU_OVERRIDE = 0x1 << 24, - PLLU_ENABLE = 0x1 << 30, - PLLU_BYPASS = 0x1 << 31 -}; - -static uint32_t *clk_rst_pllu_misc_ptr = (void *)(CLK_RST_BASE + 0xcc); -enum { - PLLU_LFCON_SHIFT = 4, - PLLU_CPCON_SHIFT = 8, - PLLU_LOCK_ENABLE = 22 -}; - -static uint32_t *clk_rst_pllx_base_ptr = (void *)(CLK_RST_BASE + 0xe0); -enum { - PLLX_ENABLE = 0x1 << 30 -}; - -static uint32_t *clk_rst_rst_dev_u_clr_ptr = (void *)(CLK_RST_BASE + 0x314); -enum { - SWR_CSITE_RST = 0x1 << 9 -}; - -static uint32_t *clk_rst_clk_enb_l_set_ptr = (void *)(CLK_RST_BASE + 0x320); -enum { - CLK_ENB_CPU = 0x1 << 0 -}; - -static uint32_t *clk_rst_clk_out_enb_u_set_ptr = - (void *)(CLK_RST_BASE + 0x330); -enum { - CLK_ENB_CSITE = 0x1 << 9 -}; - -static uint32_t *clk_rst_cpu_softrst_ctrl2_ptr = - (void *)(CLK_RST_BASE + 0x388); -enum { - CAR2PMC_CPU_ACK_WIDTH_SHIFT = 0, - CAR2PMC_CPU_ACK_WIDTH_MASK = 0xfff << CAR2PMC_CPU_ACK_WIDTH_SHIFT -}; - -static uint32_t *clk_rst_clk_enb_v_set_ptr = (void *)(CLK_RST_BASE + 0x440); -enum { - CLK_ENB_CPUG = 0x1 << 0, - CLK_ENB_CPULP = 0x1 << 1, -}; - -static uint32_t *clk_rst_rst_cpulp_cmplx_set_ptr = - (void *)(CLK_RST_BASE + 0x450); -enum { - SET_CXRESET0 = 0x1 << 20, - SET_CXRESET1 = 0x1 << 21 -}; -static uint32_t *clk_rst_rst_cpug_cmplx_clr_ptr = - (void *)(CLK_RST_BASE + 0x454); -enum { - CLR_CPURESET0 = 0x1 << 0, - CLR_CPURESET1 = 0x1 << 1, - CLR_CPURESET2 = 0x1 << 2, - CLR_CPURESET3 = 0x1 << 3, - CLR_DBGRESET0 = 0x1 << 12, - CLR_DBGRESET1 = 0x1 << 13, - CLR_DBGRESET2 = 0x1 << 14, - CLR_DBGRESET3 = 0x1 << 15, - CLR_CORERESET0 = 0x1 << 16, - CLR_CORERESET1 = 0x1 << 17, - CLR_CORERESET2 = 0x1 << 18, - CLR_CORERESET3 = 0x1 << 19, - CLR_CXRESET0 = 0x1 << 20, - CLR_CXRESET1 = 0x1 << 21, - CLR_CXRESET2 = 0x1 << 22, - CLR_CXRESET3 = 0x1 << 23, - CLR_L2RESET = 0x1 << 24, - CLR_NONCPURESET = 0x1 << 29, - CLR_PRESETDBG = 0x1 << 30 -}; - - -/* Reset vector. */ - -static uint32_t *evp_cpu_reset_ptr = (void *)(TEGRA_EVP_BASE + 0x100); - - - -/* Flow controller registers. */ -static uint32_t *flow_ctlr_halt_cop_events_ptr = - (void *)(FLOW_CTLR_BASE + 0x4); -enum { - EVENT_MSEC = 0x1 << 24, - EVENT_JTAG = 0x1 << 28, - FLOW_MODE_SHIFT = 29, - FLOW_MODE_STOP = 2 << FLOW_MODE_SHIFT, -}; - -static uint32_t *flow_ctlr_cluster_control_ptr = - (void *)(FLOW_CTLR_BASE + 0x2c); -enum { - FLOW_CLUSTER_ACTIVE_LP = 0x1 << 0 -}; - -static uint32_t *flow_ctlr_ram_repair_ptr = - (void *)(FLOW_CTLR_BASE + 0x40); -static uint32_t *flow_ctlr_ram_repair_cluster1_ptr = - (void *)(FLOW_CTLR_BASE + 0x58); -enum { - RAM_REPAIR_REQ = 0x1 << 0, - RAM_REPAIR_STS = 0x1 << 1, -}; - - -/* Power management controller registers. */ -enum { - PARTID_CRAIL = 0, - PARTID_CE0 = 14, - PARTID_C0NC = 15, -}; - -static uint32_t *pmc_ctlr_clamp_status_ptr = (void *)(PMC_CTLR_BASE + 0x2c); - -static uint32_t *pmc_ctlr_pwrgate_toggle_ptr = (void *)(PMC_CTLR_BASE + 0x30); -enum { - PWRGATE_TOGGLE_START = 0x1 << 8 -}; - -static uint32_t *pmc_ctlr_pwrgate_status_ptr = (void *)(PMC_CTLR_BASE + 0x38); - -static uint32_t *pmc_ctlr_cpupwrgood_timer_ptr = - (void *)(PMC_CTLR_BASE + 0xc8); - -static uint32_t *pmc_odmdata_ptr = (void *)(PMC_CTLR_BASE + 0xa0); - -static uint32_t *pmc_ctlr_scratch41_ptr = (void *)(PMC_CTLR_BASE + 0x140); -static uint32_t *pmc_ctlr_secure_scratch34_ptr = (void *)(PMC_CTLR_BASE + 0x368); -static uint32_t *pmc_ctlr_secure_scratch35_ptr = (void *)(PMC_CTLR_BASE + 0x36c); - -static uint32_t *pmc_ctlr_osc_edpd_over_ptr = (void *)(PMC_CTLR_BASE + 0x1a4); -enum { - PMC_XOFS_SHIFT = 1, - PMC_XOFS_MASK = 0x3f << PMC_XOFS_SHIFT -}; - - - -/* Memory controller registers. */ -static uint32_t *mc_video_protect_size_mb_ptr = (void *)(MC_CTLR_BASE + 0x64c); - -static uint32_t *mc_video_protect_reg_ctrl_ptr = - (void *)(MC_CTLR_BASE + 0x650); -enum { - VIDEO_PROTECT_WRITE_ACCESS_DISABLE = 0x1 << 0, - VIDEO_PROTECT_ALLOW_TZ_WRITE_ACCESS = 0x1 << 1 -}; - - -/* Utility functions. */ - -static inline void __attribute__((always_inline)) - __attribute__((noreturn)) halt(void) -{ - for (;;); -} - -static inline uint32_t read32(const void *addr) -{ - return *(volatile uint32_t *)addr; -} - -static inline void write32(void *addr, uint32_t val) -{ - *(volatile uint32_t *)addr = val; -} - -static inline void setbits32(uint32_t bits, void *addr) -{ - write32(addr, read32(addr) | bits); -} - -static inline void clrbits32(uint32_t bits, void *addr) -{ - write32(addr, read32(addr) & ~bits); -} - -static void __attribute__((noreturn)) reset(void) -{ - write32(clk_rst_rst_devices_l_ptr, SWR_TRIG_SYS_RST); - halt(); -} - -static void udelay(unsigned usecs) -{ - uint32_t start = read32(timer_us_ptr); - while (read32(timer_us_ptr) - start < usecs) - ; -} - -/* UART related defines */ -static uint32_t *uart_clk_out_enb_regs[4] = { - (uint32_t *)0x60006010, - (uint32_t *)0x60006010, - (uint32_t *)0x60006014, - (uint32_t *)0x60006018 -}; - -static uint32_t *uart_rst_devices_regs[4] = { - (uint32_t *)0x60006004, - (uint32_t *)0x60006004, - (uint32_t *)0x60006008, - (uint32_t *)0x6000600c -}; - -static uint32_t uart_enable_mask[4] = { - 1 << 6, - 1 << 7, - 1 << 23, - 1 << 1 -}; - -static uint32_t *uart_clk_source_regs[4] = { - (uint32_t *)0x60006178, - (uint32_t *)0x6000617c, - (uint32_t *)0x600061a0, - (uint32_t *)0x600061c0, -}; - -static uint32_t *uart_base_regs[4] = { - (uint32_t *)0x70006000, - (uint32_t *)0x70006040, - (uint32_t *)0x70006200, - (uint32_t *)0x70006300, -}; -enum { - UART_THR_DLAB = 0x0, - UART_IER_DLAB = 0x1, - UART_IIR_FCR = 0x2, - UART_LCR = 0x3 -}; -enum { - UART_RATE_115200 = (408000000/115200/16), /* based on 408000000 PLLP */ - FCR_TX_CLR = 0x4, /* bit 2 of FCR : clear TX FIFO */ - FCR_RX_CLR = 0x2, /* bit 1 of FCR : clear RX FIFO */ - FCR_EN_FIFO = 0x1, /* bit 0 of FCR : enable TX & RX FIFO */ - LCR_DLAB = 0x80, /* bit 7 of LCR : Divisor Latch Access Bit */ - LCR_WD_SIZE_8 = 0x3, /* bit 1:0 of LCR : word length of 8 */ -}; - -static void enable_uart(void) -{ - uint32_t *uart_clk_enb_reg; - uint32_t *uart_rst_reg; - uint32_t *uart_clk_source; - uint32_t uart_port; - uint32_t uart_mask; - uint32_t *uart_base; - - /* - * Read odmdata (stored in pmc->odmdata) to determine debug uart port. - * - * Bits 15-17 of odmdata contains debug uart port. - * 0 : UARTA - * 1 : UARTB - * 2 : UARTC - * 3 : UARTD - */ - uart_port = (read32(pmc_odmdata_ptr) >> 15) & 0x7; - - /* Default to UARTA if uart_port is out of range */ - if (uart_port >= 4) - uart_port = 0; - - uart_clk_enb_reg = uart_clk_out_enb_regs[uart_port]; - uart_rst_reg = uart_rst_devices_regs[uart_port]; - uart_mask = uart_enable_mask[uart_port]; - uart_clk_source = uart_clk_source_regs[uart_port]; - uart_base = uart_base_regs[uart_port]; - - /* Enable UART clock */ - setbits32(uart_mask, uart_clk_enb_reg); - - /* Reset and unreset UART */ - setbits32(uart_mask, uart_rst_reg); - clrbits32(uart_mask, uart_rst_reg); - - /* Program UART clock source: PLLP (408000000) */ - write32(uart_clk_source, 0); - - /* Program 115200n8 to the uart port */ - /* baud-rate of 115200 */ - write32((uart_base + UART_LCR), LCR_DLAB); - write32((uart_base + UART_THR_DLAB), (UART_RATE_115200 & 0xff)); - write32((uart_base + UART_IER_DLAB), (UART_RATE_115200 >> 8)); - /* 8-bit and no parity */ - write32((uart_base + UART_LCR), LCR_WD_SIZE_8); - /* enable and clear RX/TX FIFO */ - write32((uart_base + UART_IIR_FCR), - (FCR_TX_CLR + FCR_RX_CLR + FCR_EN_FIFO)); -} - -/* Accessors. */ - -static uint32_t get_wakeup_vector(void) -{ - return read32(pmc_ctlr_scratch41_ptr); -} - -static unsigned get_osc_freq(void) -{ - return (read32(clk_rst_osc_ctrl_ptr) & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT; -} - - -/* Jtag configuration. */ - -static void enable_jtag(void) -{ - write32(misc_pp_config_ctl_ptr, PP_CONFIG_CTL_JTAG); -} - -/* Clock configuration. */ - -static void config_oscillator(void) -{ - // Read oscillator drive strength from OSC_EDPD_OVER.XOFS and copy - // to OSC_CTRL.XOFS and set XOE. - uint32_t xofs = (read32(pmc_ctlr_osc_edpd_over_ptr) & - PMC_XOFS_MASK) >> PMC_XOFS_SHIFT; - - uint32_t osc_ctrl = read32(clk_rst_osc_ctrl_ptr); - osc_ctrl &= ~OSC_XOFS_MASK; - osc_ctrl |= (xofs << OSC_XOFS_SHIFT); - osc_ctrl |= OSC_XOE; - write32(clk_rst_osc_ctrl_ptr, osc_ctrl); -} - -static void config_pllu(void) -{ - // Figure out what parameters to use for PLLU. - uint32_t divm, divn, cpcon, lfcon; - switch (get_osc_freq()) { - case OSC_FREQ_12: - case OSC_FREQ_48: - divm = 0x0c; - divn = 0x3c0; - cpcon = 0x0c; - lfcon = 0x02; - break; - case OSC_FREQ_16P8: - divm = 0x07; - divn = 0x190; - cpcon = 0x05; - lfcon = 0x02; - break; - case OSC_FREQ_19P2: - case OSC_FREQ_38P4: - divm = 0x04; - divn = 0xc8; - cpcon = 0x03; - lfcon = 0x02; - break; - case OSC_FREQ_26: - divm = 0x1a; - divn = 0x3c0; - cpcon = 0x0c; - lfcon = 0x02; - break; - default: - // Map anything that's not recognized to 13MHz. - divm = 0x0d; - divn = 0x3c0; - cpcon = 0x0c; - lfcon = 0x02; - } - - // Configure PLLU. - uint32_t base = PLLU_BYPASS | PLLU_OVERRIDE | - (divn << PLLU_DIVN_SHIFT) | (divm << PLLU_DIVM_SHIFT); - write32(clk_rst_pllu_base_ptr, base); - uint32_t misc = (cpcon << PLLU_CPCON_SHIFT) | - (lfcon << PLLU_LFCON_SHIFT); - write32(clk_rst_pllu_misc_ptr, misc); - - // Enable PLLU. - base &= ~PLLU_BYPASS; - base |= PLLU_ENABLE; - write32(clk_rst_pllu_base_ptr, base); - misc |= PLLU_LOCK_ENABLE; - write32(clk_rst_pllu_misc_ptr, misc); -} - -static void enable_cpu_clocks(void) -{ - // Enable the CPU complex clock. - write32(clk_rst_clk_enb_l_set_ptr, CLK_ENB_CPU); - write32(clk_rst_clk_enb_v_set_ptr, CLK_ENB_CPUG | CLK_ENB_CPULP); -} - - - -/* Function unit configuration. */ - -static void config_core_sight(void) -{ - // Enable the CoreSight clock. - write32(clk_rst_clk_out_enb_u_set_ptr, CLK_ENB_CSITE); - - /* - * De-assert CoreSight reset. - * NOTE: We're leaving the CoreSight clock on the oscillator for - * now. It will be restored to its original clock source - * when the CPU-side restoration code runs. - */ - write32(clk_rst_rst_dev_u_clr_ptr, SWR_CSITE_RST); -} - - -/* Resets. */ - -static void clear_cpu_resets(void) -{ - /* Hold CPU1 in reset */ - setbits32(SET_CXRESET1, clk_rst_rst_cpulp_cmplx_set_ptr); - - write32(clk_rst_rst_cpug_cmplx_clr_ptr, - CLR_NONCPURESET | CLR_L2RESET | CLR_PRESETDBG); - - write32(clk_rst_rst_cpug_cmplx_clr_ptr, - CLR_CPURESET0 | CLR_DBGRESET0 | CLR_CORERESET0 | CLR_CXRESET0); -} - - - -/* RAM repair */ - -void ram_repair(void) -{ - // Request Cluster0 RAM repair. - setbits32(RAM_REPAIR_REQ, flow_ctlr_ram_repair_ptr); - // Poll for Cluster0 RAM repair status. - while (!(read32(flow_ctlr_ram_repair_ptr) & RAM_REPAIR_STS)) - ; - - // Request Cluster1 RAM repair. - setbits32(RAM_REPAIR_REQ, flow_ctlr_ram_repair_cluster1_ptr); - // Poll for Cluster1 RAM repair status. - while (!(read32(flow_ctlr_ram_repair_cluster1_ptr) & RAM_REPAIR_STS)) - ; -} - - -/* Power. */ - -static void power_on_partition(unsigned id) -{ - uint32_t bit = 0x1 << id; - if (!(read32(pmc_ctlr_pwrgate_status_ptr) & bit)) { - // Partition is not on. Turn it on. - write32(pmc_ctlr_pwrgate_toggle_ptr, id | PWRGATE_TOGGLE_START); - - // Wait until the partition is powerd on. - while (!(read32(pmc_ctlr_pwrgate_status_ptr) & bit)) - ; - - // Wait until clamp is off. - while (read32(pmc_ctlr_clamp_status_ptr) & bit) - ; - } -} - -static void power_on_main_cpu(void) -{ - /* - * Reprogram PMC_CPUPWRGOOD_TIMER register: - * - * XXX This is a fragile assumption. XXX - * The kernel prepares PMC_CPUPWRGOOD_TIMER based on a 32768Hz clock. - * Note that PMC_CPUPWRGOOD_TIMER is running at pclk. - * - * We need to reprogram PMC_CPUPWRGOOD_TIMER based on the current pclk - * which is at 204Mhz (pclk = sclk = pllp_out2) after BootROM. Multiply - * PMC_CPUPWRGOOD_TIMER by 204M / 32K. - * - * Save the original PMC_CPUPWRGOOD_TIMER register which we need to - * restore after the CPU is powered up. - */ - uint32_t orig_timer = read32(pmc_ctlr_cpupwrgood_timer_ptr); - - write32(pmc_ctlr_cpupwrgood_timer_ptr, - orig_timer * (204000000 / 32768)); - - power_on_partition(PARTID_CRAIL); - power_on_partition(PARTID_C0NC); - power_on_partition(PARTID_CE0); - - // Restore the original PMC_CPUPWRGOOD_TIMER. - write32(pmc_ctlr_cpupwrgood_timer_ptr, orig_timer); -} - - -static void aarch64_trampoline(void) -{ - uint32_t val = 3; /* bit1: to warm reset; bit0: AARCH64*/ - - asm volatile ("mcr p15, 0, %0, c12, c0, 2" : : "r" (val)); - - /* unreachable */ - halt(); -} - - -/* Entry point. */ - -void lp0_resume(void) -{ - // If not on the AVP, reset. - if (read32(up_tag_ptr) != UP_TAG_AVP) - reset(); - - // Enable JTAG - enable_jtag(); - - config_oscillator(); - - // Program SUPER_CCLK_DIVIDER. - write32(clk_rst_super_cclk_div_ptr, SUPER_CDIV_ENB); - - config_core_sight(); - - enable_uart(); - - config_pllu(); - - /* - * Set the CPU reset vector. - * - * T132 always resets to AARCH32 and SW needs to write RMR_EL3 - * to bootstrap into AARCH64. - */ - write32(pmc_ctlr_secure_scratch34_ptr, get_wakeup_vector()); - write32(pmc_ctlr_secure_scratch35_ptr, 0); - write32(evp_cpu_reset_ptr, (uint32_t)aarch64_trampoline); - - // Select CPU complex clock source. - write32(clk_rst_cclk_burst_policy_ptr, CCLK_PLLP_BURST_POLICY); - - // Disable PLLX since it isn't used as CPU clock source. - clrbits32(PLLX_ENABLE, clk_rst_pllx_base_ptr); - - // Set CAR2PMC_CPU_ACK_WIDTH to 408. - uint32_t ack_width = read32(clk_rst_cpu_softrst_ctrl2_ptr); - ack_width &= ~CAR2PMC_CPU_ACK_WIDTH_MASK; - ack_width |= 408 << CAR2PMC_CPU_ACK_WIDTH_SHIFT; - write32(clk_rst_cpu_softrst_ctrl2_ptr, ack_width); - - // Disable VPR. - write32(mc_video_protect_size_mb_ptr, 0); - write32(mc_video_protect_reg_ctrl_ptr, - VIDEO_PROTECT_WRITE_ACCESS_DISABLE); - - enable_cpu_clocks(); - - power_on_main_cpu(); - - // Perform RAM repair after CPU is powered on. - ram_repair(); - - clear_cpu_resets(); - - // Halt the AVP. - while (1) - write32(flow_ctlr_halt_cop_events_ptr, - FLOW_MODE_STOP | EVENT_JTAG); -} - - - -/* Header. */ - -extern uint8_t blob_data; -extern uint8_t blob_data_size; -extern uint8_t blob_total_size; - -struct lp0_header { - uint32_t length_insecure; // Insecure total length. - uint32_t reserved[3]; - uint8_t rsa_modulus[256]; // RSA key modulus. - uint8_t aes_signature[16]; // AES signature. - uint8_t rsa_signature[256]; // RSA-PSS signature. - uint8_t random_aes_block[16]; // Random data, may be zero. - uint32_t length_secure; // Secure total length. - uint32_t destination; // Where to load the blob in iRAM. - uint32_t entry_point; // Entry point for the blob. - uint32_t code_length; // Length of just the data. -} __attribute__((packed)); - -struct lp0_header header __attribute__((section(".header"))) = -{ - .length_insecure = (uintptr_t)&blob_total_size, - .length_secure = (uintptr_t)&blob_total_size, - .destination = (uintptr_t)&blob_data, - .entry_point = (uintptr_t)&lp0_resume, - .code_length = (uintptr_t)&blob_data_size -}; diff --git a/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.ld b/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.ld deleted file mode 100644 index 2b6ff38444..0000000000 --- a/src/soc/nvidia/tegra132/lp0/tegra_lp0_resume.ld +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright 2014 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -/* We use ELF as output format. So that we can debug the code in some form. */ -OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") -OUTPUT_ARCH(arm) - -PHDRS -{ - to_load PT_LOAD; -} - -ENTRY(lp0_resume) -SECTIONS -{ - . = 0x40020000 - 0x240; - - /* - * The lp0 blob header is built as a static data structure and put - * in the .header section. - */ - .header_start = .; - .header . : { - *(.header); - } : to_load = 0xff - .header_end = .; - - . = 0x40020000; - - /* The actual lp0 blob code. */ - .data_start = .; - .data . : { - *(.text); - *(.text.*); - *(.rodata); - *(.rodata.*); - *(.data); - *(.data.*); - *(.bss); - *(.bss.*); - *(.sbss); - *(.sbss.*); - . = ALIGN(16); - } - .data_end = .; - - /* Some values we need in the header. */ - blob_data = .data_start; - blob_data_size = .data_end - .data_start; - blob_total_size = .data_end - .header_start; - - /DISCARD/ : { - *(.comment) - *(.note) - *(.comment.*) - *(.note.*) - *(.ARM.*) - } -} |