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Diffstat (limited to 'arch/arm/cpu/armv7/tegra2/warmboot.c')
-rw-r--r--arch/arm/cpu/armv7/tegra2/warmboot.c386
1 files changed, 0 insertions, 386 deletions
diff --git a/arch/arm/cpu/armv7/tegra2/warmboot.c b/arch/arm/cpu/armv7/tegra2/warmboot.c
deleted file mode 100644
index 25d896888..000000000
--- a/arch/arm/cpu/armv7/tegra2/warmboot.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/*
- * (C) Copyright 2010 - 2011
- * NVIDIA Corporation <www.nvidia.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/errno.h>
-#include <asm/arch/ap20.h>
-#include <asm/arch/clk_rst.h>
-#include <asm/arch/clock.h>
-#include <asm/arch/pmc.h>
-#include <asm/arch/pinmux.h>
-#include <asm/arch/tegra2.h>
-#include <asm/arch/fuse.h>
-#include <asm/arch/emc.h>
-#include <asm/arch/gp_padctrl.h>
-#include <asm/arch/warmboot.h>
-#include <asm/arch/sdram_param.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifndef CONFIG_TEGRA_CLOCK_SCALING
-#error "You must enable CONFIG_TEGRA_CLOCK_SCALING to use CONFIG_TEGRA2_LP0"
-#endif
-
-/*
- * This is the place in SRAM where the SDRAM parameters are stored. There
- * are 4 blocks, one for each RAM code
- */
-#define SDRAM_PARAMS_BASE (AP20_BASE_PA_SRAM + 0x188)
-
-/* TODO: If we later add support for the Misc GP controller, refactor this */
-union xm2cfga_reg {
- struct {
- u32 reserved0:2;
- u32 hsm_en:1;
- u32 reserved1:2;
- u32 preemp_en:1;
- u32 vref_en:1;
- u32 reserved2:5;
- u32 cal_drvdn:5;
- u32 reserved3:3;
- u32 cal_drvup:5;
- u32 reserved4:3;
- u32 cal_drvdn_slwr:2;
- u32 cal_drvup_slwf:2;
- };
- u32 word;
-};
-
-union xm2cfgd_reg {
- struct {
- u32 reserved0:2;
- u32 hsm_en:1;
- u32 schmt_en:1;
- u32 lpmd:2;
- u32 vref_en:1;
- u32 reserved1:5;
- u32 cal_drvdn:5;
- u32 reserved2:3;
- u32 cal_drvup:5;
- u32 reserved3:3;
- u32 cal_drvdn_slwr:2;
- u32 cal_drvup_slwf:2;
- };
- u32 word;
-};
-
-/*
- * TODO: This register is not documented in the TRM yet. We could move this
- * into the EMC and give it a proper interface, but not while it is
- * undocumented.
- */
-union fbio_spare_reg {
- struct {
- u32 reserved:24;
- u32 cfg_wb0:8;
- };
- u32 word;
-};
-
-/* We pack the resume information into these unions for later */
-union scratch2_reg {
- struct {
- u32 pllm_base_divm:5;
- u32 pllm_base_divn:10;
- u32 pllm_base_divp:3;
- u32 pllm_misc_lfcon:4;
- u32 pllm_misc_cpcon:4;
- u32 gp_xm2cfga_padctrl_preemp:1;
- u32 gp_xm2cfgd_padctrl_schmt:1;
- u32 osc_ctrl_xobp:1;
- u32 memory_type:3;
- };
- u32 word;
-};
-
-union scratch4_reg {
- struct {
- u32 emc_clock_divider:8;
- u32 pllm_stable_time:8;
- u32 pllx_stable_time:8;
- u32 emc_fbio_spare_cfg_wb0:8;
- };
- u32 word;
-};
-
-union scratch24_reg {
- struct {
- u32 emc_auto_cal_wait:8;
- u32 emc_pin_program_wait:8;
- u32 warmboot_wait:8;
- u32 reserved:8;
- };
- u32 word;
-};
-
-int warmboot_save_sdram_params(void)
-{
- u32 ram_code;
- struct sdram_params sdram;
- struct pmux_tri_ctlr *pmt = (struct pmux_tri_ctlr *)NV_PA_APB_MISC_BASE;
- struct pmc_ctlr *pmc = (struct pmc_ctlr *)TEGRA2_PMC_BASE;
- struct apb_misc_gp_ctlr *gp =
- (struct apb_misc_gp_ctlr *)TEGRA2_APB_MISC_GP_BASE;
- struct emc_ctlr *emc = emc_get_controller(gd->fdt_blob);
- union scratch2_reg scratch2;
- union scratch4_reg scratch4;
- union scratch24_reg scratch24;
- union xm2cfga_reg xm2cfga;
- union xm2cfgd_reg xm2cfgd;
- union fbio_spare_reg fbio_spare;
-
- /* get ram code that is used as index to array sdram_params in BCT */
- ram_code = (readl(&pmt->pmt_strap_opt_a) >>
- STRAP_OPT_A_RAM_CODE_SHIFT) & 3;
- memcpy(&sdram,
- (char *)((struct sdram_params *)SDRAM_PARAMS_BASE + ram_code),
- sizeof(sdram));
-
- xm2cfga.word = readl(&gp->xm2cfga);
- xm2cfgd.word = readl(&gp->xm2cfgd);
-
- scratch2.word = 0;
- scratch2.osc_ctrl_xobp = clock_get_osc_bypass();
-
- /* Get the memory PLL settings */
- {
- u32 divm, divn, divp, cpcon, lfcon;
-
- if (clock_ll_read_pll(CLOCK_ID_MEMORY, &divm, &divn, &divp,
- &cpcon, &lfcon))
- return -1;
- scratch2.pllm_base_divm = divm;
- scratch2.pllm_base_divn = divn;
- scratch2.pllm_base_divp = divp;
- scratch2.pllm_misc_cpcon = cpcon;
- scratch2.pllm_misc_lfcon = lfcon;
- }
-
- scratch2.gp_xm2cfga_padctrl_preemp = xm2cfga.preemp_en;
- scratch2.gp_xm2cfgd_padctrl_schmt = xm2cfgd.schmt_en;
- scratch2.memory_type = sdram.memory_type;
- writel(scratch2.word, &pmc->pmc_scratch2);
-
- /* collect data from various sources for pmc_scratch4 */
- fbio_spare.word = readl(&emc->fbio_spare);
- scratch4.word = 0;
- scratch4.emc_fbio_spare_cfg_wb0 = fbio_spare.cfg_wb0;
- scratch4.emc_clock_divider = sdram.emc_clock_divider;
- scratch4.pllm_stable_time = -1;
- scratch4.pllx_stable_time = -1;
- writel(scratch4.word, &pmc->pmc_scratch4);
-
- /* collect various data from sdram for pmc_scratch24 */
- scratch24.word = 0;
- scratch24.emc_pin_program_wait = sdram.emc_pin_program_wait;
- scratch24.emc_auto_cal_wait = sdram.emc_auto_cal_wait;
- scratch24.warmboot_wait = sdram.warm_boot_wait;
- writel(scratch24.word, &pmc->pmc_scratch24);
-
- return 0;
-}
-
-static u32 get_major_version(void)
-{
- u32 major_id;
- struct apb_misc_gp_ctlr *gp =
- (struct apb_misc_gp_ctlr *)TEGRA2_APB_MISC_GP_BASE;
-
- major_id = (readl(&gp->hidrev) & HIDREV_MAJORPREV_MASK) >>
- HIDREV_MAJORPREV_SHIFT;
- return major_id;
-}
-
-static int is_production_mode_fuse_set(struct fuse_regs *fuse)
-{
- return readl(&fuse->production_mode);
-}
-
-static int is_odm_production_mode_fuse_set(struct fuse_regs *fuse)
-{
- return readl(&fuse->security_mode);
-}
-
-static int is_failure_analysis_mode(struct fuse_regs *fuse)
-{
- return readl(&fuse->fa);
-}
-
-static int ap20_is_odm_production_mode(void)
-{
- struct fuse_regs *fuse = (struct fuse_regs *)TEGRA2_FUSE_BASE;
-
- if (!is_failure_analysis_mode(fuse) &&
- is_odm_production_mode_fuse_set(fuse))
- return 1;
- else
- return 0;
-}
-
-static int ap20_is_production_mode(void)
-{
- struct fuse_regs *fuse = (struct fuse_regs *)TEGRA2_FUSE_BASE;
-
- if (get_major_version() == 0)
- return 1;
-
- if (!is_failure_analysis_mode(fuse) &&
- is_production_mode_fuse_set(fuse) &&
- !is_odm_production_mode_fuse_set(fuse))
- return 1;
- else
- return 0;
-}
-
-static enum fuse_operating_mode fuse_get_operation_mode(void)
-{
- u32 chip_id;
- struct apb_misc_gp_ctlr *gp =
- (struct apb_misc_gp_ctlr *)TEGRA2_APB_MISC_GP_BASE;
-
- chip_id = (readl(&gp->hidrev) & HIDREV_CHIPID_MASK) >>
- HIDREV_CHIPID_SHIFT;
- if (chip_id == CHIPID_TEGRA2) {
- if (ap20_is_odm_production_mode()) {
- printf("!! odm_production_mode is not supported !!\n");
- return MODE_UNDEFINED;
- } else
- if (ap20_is_production_mode())
- return MODE_PRODUCTION;
- else
- return MODE_UNDEFINED;
- }
- return MODE_UNDEFINED;
-}
-
-static void determine_crypto_options(int *is_encrypted, int *is_signed,
- int *use_zero_key)
-{
- switch (fuse_get_operation_mode()) {
- case MODE_PRODUCTION:
- *is_encrypted = 0;
- *is_signed = 1;
- *use_zero_key = 1;
- break;
- case MODE_UNDEFINED:
- default:
- *is_encrypted = 0;
- *is_signed = 0;
- *use_zero_key = 0;
- break;
- }
-}
-
-static int sign_wb_code(u32 start, u32 length, int use_zero_key)
-{
- int err;
- u8 *source; /* Pointer to source */
- u8 *hash;
-
- /* Calculate AES block parameters. */
- source = (u8 *)(start + offsetof(struct wb_header, random_aes_block));
- length -= offsetof(struct wb_header, random_aes_block);
- hash = (u8 *)(start + offsetof(struct wb_header, hash));
- err = sign_data_block(source, length, hash);
-
- return err;
-}
-
-int warmboot_prepare_code(u32 seg_address, u32 seg_length)
-{
- int err = 0;
- u32 length; /* length of the signed/encrypt code */
- struct wb_header *dst_header; /* Pointer to dest WB header */
- int is_encrypted; /* Segment is encrypted */
- int is_signed; /* Segment is signed */
- int use_zero_key; /* Use key of all zeros */
-
- /* Determine crypto options. */
- determine_crypto_options(&is_encrypted, &is_signed, &use_zero_key);
-
- /* Get the actual code limits. */
- length = roundup(((u32)wb_end - (u32)wb_start), 16);
-
- /*
- * The region specified by seg_address must be in SDRAM and must be
- * nonzero in length.
- */
- if (seg_length == 0 || seg_address < NV_PA_SDRAM_BASE ||
- seg_address + seg_length >= NV_PA_SDRAM_BASE + gd->ram_size) {
- err = -EFAULT;
- goto fail;
- }
-
- /* Things must be 16-byte aligned. */
- if ((seg_length & 0xF) || (seg_address & 0xF)) {
- err = -EINVAL;
- goto fail;
- }
-
- /* Will the code fit? (destination includes wb_header + wb code) */
- if (seg_length < (length + sizeof(struct wb_header))) {
- err = -EINVAL;
- goto fail;
- }
-
- dst_header = (struct wb_header *)seg_address;
- memset((char *)dst_header, 0, sizeof(struct wb_header));
-
- /* Populate the random_aes_block as requested. */
- {
- u32 *aes_block = (u32 *)&(dst_header->random_aes_block);
- u32 *end = (u32 *)(((u32)aes_block) +
- sizeof(dst_header->random_aes_block));
-
- do {
- *aes_block++ = 0;
- } while (aes_block < end);
- }
-
- /* Populate the header. */
- dst_header->length_insecure = length + sizeof(struct wb_header);
- dst_header->length_secure = length + sizeof(struct wb_header);
- dst_header->destination = AP20_WB_RUN_ADDRESS;
- dst_header->entry_point = AP20_WB_RUN_ADDRESS;
- dst_header->code_length = length;
-
- if (is_encrypted) {
- printf("!!!! Encryption is not supported !!!!\n");
- dst_header->length_insecure = 0;
- err = -EACCES;
- goto fail;
- } else
- /* copy the wb code directly following dst_header. */
- memcpy((char *)(dst_header+1), (char *)wb_start, length);
-
- if (is_signed)
- err = sign_wb_code(seg_address, dst_header->length_insecure,
- use_zero_key);
-
-fail:
- if (err)
- printf("Warning: warmboot code copy failed (error=%d)\n", err);
-
- return err;
-}
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