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@@ -433,6 +433,23 @@ static int sunxi_mmc_getcd(struct mmc *mmc)
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return !gpio_get_value(cd_pin);
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return !gpio_get_value(cd_pin);
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}
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}
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+int sunxi_mmc_has_egon_boot_signature(struct mmc *mmc)
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+{
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+ char *buf = malloc(512);
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+ int valid_signature = 0;
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+
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+ if (buf == NULL)
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+ panic("Failed to allocate memory\n");
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+
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+ if (mmc_getcd(mmc) && mmc_init(mmc) == 0 &&
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+ mmc->block_dev.block_read(mmc->block_dev.dev, 16, 1, buf) == 1 &&
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+ strncmp(&buf[4], "eGON.BT0", 8) == 0)
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+ valid_signature = 1;
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+
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+ free(buf);
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+ return valid_signature;
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+}
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+
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static const struct mmc_ops sunxi_mmc_ops = {
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static const struct mmc_ops sunxi_mmc_ops = {
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.send_cmd = sunxi_mmc_send_cmd,
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.send_cmd = sunxi_mmc_send_cmd,
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.set_ios = sunxi_mmc_set_ios,
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.set_ios = sunxi_mmc_set_ios,
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