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scsi: ceva: Clean up the driver code

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Distinguish the ecc val by chassis version and move the ecc addr to dts.
Add ls1028a soc support.

Signed-off-by: Peng Ma <peng.ma@nxp.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
This commit is contained in:
Peng Ma 2019-04-17 10:10:50 +00:00 • committed by Prabhakar Kushwaha
parent e765ee5c50
commit d2ebc38236
1 changed files with 33 additions and 17 deletions
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50
drivers/ata/sata_ceva.c
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@ -8,6 +8,7 @@
#include <ahci.h>
#include <scsi.h>
#include <asm/io.h>
#include <linux/ioport.h>
/* Vendor Specific Register Offsets */
#define AHCI_VEND_PCFG 0xA4
@ -88,20 +89,16 @@
#define LS1021_CEVA_PHY4_CFG 0x064a080b
#define LS1021_CEVA_PHY5_CFG 0x2aa86470
/* for ls1088a */
#define LS1088_ECC_DIS_ADDR_CH2 0x100520
#define LS1088_ECC_DIS_VAL_CH2 0x40000000
/* ecc addr-val pair */
#define ECC_DIS_ADDR_CH2 0x20140520
/* ecc val pair */
#define ECC_DIS_VAL_CH1 0x00020000
#define ECC_DIS_VAL_CH2 0x80000000
#define SATA_ECC_REG_ADDR 0x20220520
#define SATA_ECC_DISABLE 0x00020000
#define ECC_DIS_VAL_CH3 0x40000000
enum ceva_soc {
CEVA_1V84,
CEVA_LS1012A,
CEVA_LS1021A,
CEVA_LS1028A,
CEVA_LS1043A,
CEVA_LS1046A,
CEVA_LS1088A,
@ -110,12 +107,14 @@ enum ceva_soc {
struct ceva_sata_priv {
ulong base;
ulong ecc_base;
enum ceva_soc soc;
ulong flag;
};
static int ceva_init_sata(struct ceva_sata_priv *priv)
{
ulong ecc_addr = priv->ecc_base;
ulong base = priv->base;
ulong tmp;
@ -132,38 +131,42 @@ static int ceva_init_sata(struct ceva_sata_priv *priv)
break;
case CEVA_LS1021A:
writel(SATA_ECC_DISABLE, SATA_ECC_REG_ADDR);
if (!ecc_addr)
return -EINVAL;
writel(ECC_DIS_VAL_CH1, ecc_addr);
writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG);
writel(LS1021_CEVA_PHY2_CFG, base + AHCI_VEND_PP2C);
writel(LS1021_CEVA_PHY3_CFG, base + AHCI_VEND_PP3C);
writel(LS1021_CEVA_PHY4_CFG, base + AHCI_VEND_PP4C);
writel(LS1021_CEVA_PHY5_CFG, base + AHCI_VEND_PP5C);
writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC);
if (priv->flag & FLAG_COHERENT)
writel(CEVA_AXICC_CFG, base + LS1021_AHCI_VEND_AXICC);
break;
case CEVA_LS1012A:
case CEVA_LS1043A:
case CEVA_LS1046A:
writel(ECC_DIS_VAL_CH2, ECC_DIS_ADDR_CH2);
if (!ecc_addr)
return -EINVAL;
writel(ECC_DIS_VAL_CH2, ecc_addr);
/* fallthrough */
case CEVA_LS2080A:
writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG);
writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC);
if (priv->flag & FLAG_COHERENT)
writel(CEVA_AXICC_CFG, base + AHCI_VEND_AXICC);
break;
case CEVA_LS1028A:
case CEVA_LS1088A:
writel(LS1088_ECC_DIS_VAL_CH2, LS1088_ECC_DIS_ADDR_CH2);
if (!ecc_addr)
return -EINVAL;
writel(ECC_DIS_VAL_CH3, ecc_addr);
writel(CEVA_PHY1_CFG, base + AHCI_VEND_PPCFG);
writel(CEVA_TRANS_CFG, base + AHCI_VEND_PTC);
if (priv->flag & FLAG_COHERENT)
writel(CEVA_AXICC_CFG, base + AHCI_VEND_AXICC);
break;
}
if (priv->flag & FLAG_COHERENT)
writel(CEVA_AXICC_CFG, base + AHCI_VEND_AXICC);
return 0;
}
@ -187,6 +190,7 @@ static const struct udevice_id sata_ceva_ids[] = {
{ .compatible = "ceva,ahci-1v84", .data = CEVA_1V84 },
{ .compatible = "fsl,ls1012a-ahci", .data = CEVA_LS1012A },
{ .compatible = "fsl,ls1021a-ahci", .data = CEVA_LS1021A },
{ .compatible = "fsl,ls1028a-ahci", .data = CEVA_LS1028A },
{ .compatible = "fsl,ls1043a-ahci", .data = CEVA_LS1043A },
{ .compatible = "fsl,ls1046a-ahci", .data = CEVA_LS1046A },
{ .compatible = "fsl,ls1088a-ahci", .data = CEVA_LS1088A },
@ -197,6 +201,8 @@ static const struct udevice_id sata_ceva_ids[] = {
static int sata_ceva_ofdata_to_platdata(struct udevice *dev)
{
struct ceva_sata_priv *priv = dev_get_priv(dev);
struct resource res_regs;
int ret;
if (dev_read_bool(dev, "dma-coherent"))
priv->flag |= FLAG_COHERENT;
@ -205,8 +211,18 @@ static int sata_ceva_ofdata_to_platdata(struct udevice *dev)
if (priv->base == FDT_ADDR_T_NONE)
return -EINVAL;
ret = dev_read_resource_byname(dev, "ecc-addr", &res_regs);
if (ret)
priv->ecc_base = 0;
else
priv->ecc_base = res_regs.start;
priv->soc = dev_get_driver_data(dev);
debug("ccsr-sata-base %lx\t ecc-base %lx\n",
priv->base,
priv->ecc_base);
return 0;
}