block: Add support for Ceva sata

Initial Ceva Sata init code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>

2 files changed, 114 insertions, 0 deletions

diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index b4cbb09..a43492f 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_LIBATA) += libata.o
 obj-$(CONFIG_MVSATA_IDE) += mvsata_ide.o
 obj-$(CONFIG_MX51_PATA) += mxc_ata.o
 obj-$(CONFIG_PATA_BFIN) += pata_bfin.o
+obj-$(CONFIG_SATA_CEVA) += sata_ceva.o
 obj-$(CONFIG_SATA_DWC) += sata_dwc.o
 obj-$(CONFIG_SATA_MV) += sata_mv.o
 obj-$(CONFIG_SATA_SIL3114) += sata_sil3114.o
diff --git a/drivers/block/sata_ceva.c b/drivers/block/sata_ceva.c
new file mode 100644
index 0000000..dcc3b90
--- /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;
+}