diff options
Diffstat (limited to 'drivers/block/sata_ceva.c')
| -rw-r--r-- | drivers/block/sata_ceva.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/block/sata_ceva.c b/drivers/block/sata_ceva.c new file mode 100644 index 0000000000..dcc3b90b17 --- /dev/null +++ b/drivers/block/sata_ceva.c @@ -0,0 +1,113 @@ +/* + * (C) Copyright 2015 - 2016 Xilinx, Inc. + * Michal Simek <michal.simek@xilinx.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <netdev.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 + +int init_sata(int dev) +{ + ulong tmp; + ulong mmio = ZYNQMP_SATA_BASEADDR; + 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; +} |