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ahci: flush dcache before issuing command
Ensure data the following sata command used is flushed out of dcache and written to physical memory or timeout error may happen. Signed-off-by: Tang Yuantian <yuantian.tang@nxp.com>
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@ -1061,6 +1061,7 @@ static int ata_io_flush(u8 port)
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memcpy((unsigned char *)pp->cmd_tbl, fis, 20);
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memcpy((unsigned char *)pp->cmd_tbl, fis, 20);
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ahci_fill_cmd_slot(pp, cmd_fis_len);
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ahci_fill_cmd_slot(pp, cmd_fis_len);
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ahci_dcache_flush_sata_cmd(pp);
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writel_with_flush(1, port_mmio + PORT_CMD_ISSUE);
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writel_with_flush(1, port_mmio + PORT_CMD_ISSUE);
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if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE,
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if (waiting_for_cmd_completed(port_mmio + PORT_CMD_ISSUE,
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