diff options
| author | Stefan Roese | 2021-04-07 09:12:35 +0200 |
|---|---|---|
| committer | Daniel Schwierzeck | 2021-04-23 21:22:55 +0200 |
| commit | 1cf2700f269e8f81cf99a68b8746c80e12c410be (patch) | |
| tree | 2c10ff0d4915449c79a35bfaac8daefe5af8a22f /drivers/ata/ahci.c | |
| parent | 1eefd49cc188e40f7221f96cd7d7a21b3ccba89a (diff) | |
ata: ahci: Fix usage on big-endian platforms
This patch adds a few missing virt_to_phys() to use the correct physical
address for DMA operations in the common AHCI code. This is done to
support the big-endian MIPS Octeon platform.
Additionally the code a cleaned up a bit (remove some empty lines) and
made a bit better readable.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Aaron Williams <awilliams@marvell.com>
Cc: Chandrakala Chavva <cchavva@marvell.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Diffstat (limited to 'drivers/ata/ahci.c')
| -rw-r--r-- | drivers/ata/ahci.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 98b288254be..57c4e153bac 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -500,6 +500,7 @@ static int ahci_fill_sg(struct ahci_uc_priv *uc_priv, u8 port, { struct ahci_ioports *pp = &(uc_priv->port[port]); struct ahci_sg *ahci_sg = pp->cmd_tbl_sg; + phys_addr_t pa = virt_to_phys(buf); u32 sg_count; int i; @@ -510,9 +511,6 @@ static int ahci_fill_sg(struct ahci_uc_priv *uc_priv, u8 port, } for (i = 0; i < sg_count; i++) { - /* We assume virt=phys */ - phys_addr_t pa = (unsigned long)buf + i * MAX_DATA_BYTE_COUNT; - ahci_sg->addr = cpu_to_le32(lower_32_bits(pa)); ahci_sg->addr_hi = cpu_to_le32(upper_32_bits(pa)); if (ahci_sg->addr_hi && !(uc_priv->cap & AHCI_CAP_S64A)) { @@ -520,25 +518,26 @@ static int ahci_fill_sg(struct ahci_uc_priv *uc_priv, u8 port, return -1; } ahci_sg->flags_size = cpu_to_le32(0x3fffff & - (buf_len < MAX_DATA_BYTE_COUNT - ? (buf_len - 1) - : (MAX_DATA_BYTE_COUNT - 1))); + (buf_len < MAX_DATA_BYTE_COUNT ? + (buf_len - 1) : + (MAX_DATA_BYTE_COUNT - 1))); ahci_sg++; buf_len -= MAX_DATA_BYTE_COUNT; + pa += MAX_DATA_BYTE_COUNT; } return sg_count; } - static void ahci_fill_cmd_slot(struct ahci_ioports *pp, u32 opts) { + phys_addr_t pa = virt_to_phys((void *)pp->cmd_tbl); + pp->cmd_slot->opts = cpu_to_le32(opts); pp->cmd_slot->status = 0; - pp->cmd_slot->tbl_addr = cpu_to_le32((u32)pp->cmd_tbl & 0xffffffff); + pp->cmd_slot->tbl_addr = cpu_to_le32(lower_32_bits(pa)); #ifdef CONFIG_PHYS_64BIT - pp->cmd_slot->tbl_addr_hi = - cpu_to_le32((u32)(((pp->cmd_tbl) >> 16) >> 16)); + pp->cmd_slot->tbl_addr_hi = cpu_to_le32(upper_32_bits(pa)); #endif } @@ -674,12 +673,12 @@ static int ahci_device_data_io(struct ahci_uc_priv *uc_priv, u8 port, u8 *fis, ahci_dcache_invalidate_range((unsigned long)buf, (unsigned long)buf_len); - debug("%s: %d byte transferred.\n", __func__, pp->cmd_slot->status); + debug("%s: %d byte transferred.\n", __func__, + le32_to_cpu(pp->cmd_slot->status)); return 0; } - static char *ata_id_strcpy(u16 *target, u16 *src, int len) { int i; |