mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 06:00:43 +00:00
e81589ea44
s/achi_/ahci_/g Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
155 lines
3.6 KiB
C
155 lines
3.6 KiB
C
/*
|
|
* (C) Copyright 2015 - 2016 Xilinx, Inc.
|
|
* Michal Simek <michal.simek@xilinx.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <ahci.h>
|
|
#include <scsi.h>
|
|
#include <asm/arch/hardware.h>
|
|
|
|
#include <asm/io.h>
|
|
|
|
/* Vendor Specific Register Offsets */
|
|
#define AHCI_VEND_PCFG 0xA4
|
|
#define AHCI_VEND_PPCFG 0xA8
|
|
#define AHCI_VEND_PP2C 0xAC
|
|
#define AHCI_VEND_PP3C 0xB0
|
|
#define AHCI_VEND_PP4C 0xB4
|
|
#define AHCI_VEND_PP5C 0xB8
|
|
#define AHCI_VEND_PAXIC 0xC0
|
|
#define AHCI_VEND_PTC 0xC8
|
|
|
|
/* Vendor Specific Register bit definitions */
|
|
#define PAXIC_ADBW_BW64 0x1
|
|
#define PAXIC_MAWIDD (1 << 8)
|
|
#define PAXIC_MARIDD (1 << 16)
|
|
#define PAXIC_OTL (0x4 << 20)
|
|
|
|
#define PCFG_TPSS_VAL (0x32 << 16)
|
|
#define PCFG_TPRS_VAL (0x2 << 12)
|
|
#define PCFG_PAD_VAL 0x2
|
|
|
|
#define PPCFG_TTA 0x1FFFE
|
|
#define PPCFG_PSSO_EN (1 << 28)
|
|
#define PPCFG_PSS_EN (1 << 29)
|
|
#define PPCFG_ESDF_EN (1 << 31)
|
|
|
|
#define PP2C_CIBGMN 0x0F
|
|
#define PP2C_CIBGMX (0x25 << 8)
|
|
#define PP2C_CIBGN (0x18 << 16)
|
|
#define PP2C_CINMP (0x29 << 24)
|
|
|
|
#define PP3C_CWBGMN 0x04
|
|
#define PP3C_CWBGMX (0x0B << 8)
|
|
#define PP3C_CWBGN (0x08 << 16)
|
|
#define PP3C_CWNMP (0x0F << 24)
|
|
|
|
#define PP4C_BMX 0x0a
|
|
#define PP4C_BNM (0x08 << 8)
|
|
#define PP4C_SFD (0x4a << 16)
|
|
#define PP4C_PTST (0x06 << 24)
|
|
|
|
#define PP5C_RIT 0x60216
|
|
#define PP5C_RCT (0x7f0 << 20)
|
|
|
|
#define PTC_RX_WM_VAL 0x40
|
|
#define PTC_RSVD (1 << 27)
|
|
|
|
#define PORT0_BASE 0x100
|
|
#define PORT1_BASE 0x180
|
|
|
|
/* Port Control Register Bit Definitions */
|
|
#define PORT_SCTL_SPD_GEN3 (0x3 << 4)
|
|
#define PORT_SCTL_SPD_GEN2 (0x2 << 4)
|
|
#define PORT_SCTL_SPD_GEN1 (0x1 << 4)
|
|
#define PORT_SCTL_IPM (0x3 << 8)
|
|
|
|
#define PORT_BASE 0x100
|
|
#define PORT_OFFSET 0x80
|
|
#define NR_PORTS 2
|
|
#define DRV_NAME "ahci-ceva"
|
|
#define CEVA_FLAG_BROKEN_GEN2 1
|
|
|
|
static int ceva_init_sata(ulong mmio)
|
|
{
|
|
ulong tmp;
|
|
int i;
|
|
|
|
/*
|
|
* AXI Data bus width to 64
|
|
* Set Mem Addr Read, Write ID for data transfers
|
|
* Transfer limit to 72 DWord
|
|
*/
|
|
tmp = PAXIC_ADBW_BW64 | PAXIC_MAWIDD | PAXIC_MARIDD | PAXIC_OTL;
|
|
writel(tmp, mmio + AHCI_VEND_PAXIC);
|
|
|
|
/* Set AHCI Enable */
|
|
tmp = readl(mmio + HOST_CTL);
|
|
tmp |= HOST_AHCI_EN;
|
|
writel(tmp, mmio + HOST_CTL);
|
|
|
|
for (i = 0; i < NR_PORTS; i++) {
|
|
/* TPSS TPRS scalars, CISE and Port Addr */
|
|
tmp = PCFG_TPSS_VAL | PCFG_TPRS_VAL | (PCFG_PAD_VAL + i);
|
|
writel(tmp, mmio + AHCI_VEND_PCFG);
|
|
|
|
/* Port Phy Cfg register enables */
|
|
tmp = PPCFG_TTA | PPCFG_PSS_EN | PPCFG_ESDF_EN;
|
|
writel(tmp, mmio + AHCI_VEND_PPCFG);
|
|
|
|
/* Rx Watermark setting */
|
|
tmp = PTC_RX_WM_VAL | PTC_RSVD;
|
|
writel(tmp, mmio + AHCI_VEND_PTC);
|
|
|
|
/* Default to Gen 2 Speed and Gen 1 if Gen2 is broken */
|
|
tmp = PORT_SCTL_SPD_GEN3 | PORT_SCTL_IPM;
|
|
writel(tmp, mmio + PORT_SCR_CTL + PORT_BASE + PORT_OFFSET * i);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int sata_ceva_probe(struct udevice *dev)
|
|
{
|
|
int ret;
|
|
struct scsi_platdata *plat = dev_get_uclass_platdata(dev);
|
|
|
|
ceva_init_sata(plat->base);
|
|
|
|
ret = ahci_init_one_dm(dev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return ahci_start_ports_dm(dev);
|
|
}
|
|
|
|
static const struct udevice_id sata_ceva_ids[] = {
|
|
{ .compatible = "ceva,ahci-1v84" },
|
|
{ }
|
|
};
|
|
|
|
static int sata_ceva_ofdata_to_platdata(struct udevice *dev)
|
|
{
|
|
struct scsi_platdata *plat = dev_get_uclass_platdata(dev);
|
|
|
|
plat->base = devfdt_get_addr(dev);
|
|
if (plat->base == FDT_ADDR_T_NONE)
|
|
return -EINVAL;
|
|
|
|
/* Hardcode number for ceva sata controller */
|
|
plat->max_lun = 1; /* Actually two but untested */
|
|
plat->max_id = 2;
|
|
|
|
return 0;
|
|
}
|
|
|
|
U_BOOT_DRIVER(ceva_host_blk) = {
|
|
.name = "ceva_sata",
|
|
.id = UCLASS_SCSI,
|
|
.of_match = sata_ceva_ids,
|
|
.ops = &scsi_ops,
|
|
.probe = sata_ceva_probe,
|
|
.ofdata_to_platdata = sata_ceva_ofdata_to_platdata,
|
|
};
|