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path: root/arch/arm/cpu/armv7/tegra2/warmboot.c
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Diffstat (limited to 'arch/arm/cpu/armv7/tegra2/warmboot.c')
-rw-r--r--arch/arm/cpu/armv7/tegra2/warmboot.c213
1 files changed, 0 insertions, 213 deletions
diff --git a/arch/arm/cpu/armv7/tegra2/warmboot.c b/arch/arm/cpu/armv7/tegra2/warmboot.c
index 69c01d297b..6cecec3c27 100644
--- a/arch/arm/cpu/armv7/tegra2/warmboot.c
+++ b/arch/arm/cpu/armv7/tegra2/warmboot.c
@@ -39,10 +39,6 @@
#include <asm/arch/tegra.h>
#include <asm/arch-tegra/warmboot.h>
-#define BCT_OFFSET 0x100 /* BCT starts at 0x100 */
-#define BCT_SDRAM_PARAMS_OFFSET (BCT_OFFSET + 0x88)
-#define SDRAM_PARAMS_BASE (AP20_BASE_PA_SRAM + BCT_SDRAM_PARAMS_OFFSET)
-
union osc_ctrl_reg {
struct {
u32 xoe:1;
@@ -233,212 +229,3 @@ void warmboot_save_sdram_params(void)
scratch24.warmboot_wait = sdram.warm_boot_wait;
writel(scratch24.word, &pmc->pmc_scratch24);
}
-
-/*
- * NOTE: If more than one of the following is enabled, only one of them will
- * actually be used. RANDOM takes precedence over PATTERN and ZERO, and
- * PATTERN takes precedence overy ZERO.
- *
- * RANDOM_AES_BLOCK_IS_PATTERN is to define a 32-bit PATTERN.
- */
-#define RANDOM_AES_BLOCK_IS_RANDOM /* to randomize the header */
-#undef RANDOM_AES_BLOCK_IS_PATTERN /* to patternize the header */
-#undef RANDOM_AES_BLOCK_IS_ZERO /* to clear the header */
-
-static u32 get_major_version(void)
-{
- u32 major_id;
- struct apb_misc_gp_ctlr *gp =
- (struct apb_misc_gp_ctlr *)NV_PA_APB_MISC_GP_BASE;
-
- major_id = bf_readl(HIDREV_MAJORPREV, &gp->hidrev);
- 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 *)NV_PA_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 *)NV_PA_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 *)NV_PA_APB_MISC_GP_BASE;
-
- chip_id = bf_readl(HIDREV_CHIPID, &gp->hidrev);
- 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;
-}
-
-/* Currently, this routine returns a 32-bit all 0 seed. */
-static u32 query_random_seed(void)
-{
- return 0;
-}
-
-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 not be in IRAM and must be
- * nonzero in length.
- */
- if ((seg_length == 0) || (seg_address == 0) ||
- (seg_address >= AP20_BASE_PA_SRAM)) {
- 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 {
-#if defined(RANDOM_AES_BLOCK_IS_RANDOM)
- *aes_block++ = query_random_seed();
-#elif defined(RANDOM_AES_BLOCK_IS_PATTERN)
- *aes_block++ = RANDOM_AES_BLOCK_IS_PATTERN;
-#elif defined(RANDOM_AES_BLOCK_IS_ZERO)
- *aes_block++ = 0;
-#else
- printf("None of RANDOM_AES_BLOCK_IS_XXX is defined; ");
- printf("Default to pattern 0.\n");
- *aes_block++ = 0;
-#endif
- } while (aes_block < end);
- }
-
- /* Populate the header. */
- dst_header->length_in_secure = 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_in_secure = 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_in_secure,
- use_zero_key);
-
-fail:
- if (err)
- printf("WB code not copied to LP0 location! (error=%d)\n", err);
-
- return err;
-}
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-28 22:04:39 +0000