arm: ls1021a: Add sata support on qds and twr board

Freescale ARM-based Layerscape LS102xA contain a SATA controller
which comply with the serial ATA 3.0 specification and the
AHCI 1.3 specification.
This patch adds SATA feature on ls1021aqds and ls1021atwr boards.

Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

arch/arm/cpu/armv7/ls102xa/Makefile

@@ -9,6 +9,7 @@ obj-y	+= clock.o
 obj-y	+= timer.o
 obj-y	+= fsl_epu.o
 
+obj-$(CONFIG_SCSI_AHCI_PLAT) += ls102xa_sata.o
 obj-$(CONFIG_OF_LIBFDT) += fdt.o
 obj-$(CONFIG_SYS_HAS_SERDES) += fsl_ls1_serdes.o ls102xa_serdes.o
 obj-$(CONFIG_SPL) += spl.o

arch/arm/cpu/armv7/ls102xa/ls102xa_sata.c

@@ -0,0 +1,42 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/immap_ls102xa.h>
+#include <ahci.h>
+#include <scsi.h>
+
+/* port register default value */
+#define AHCI_PORT_PHY_1_CFG	0xa003fffe
+#define AHCI_PORT_PHY_2_CFG	0x28183411
+#define AHCI_PORT_PHY_3_CFG	0x0e081004
+#define AHCI_PORT_PHY_4_CFG	0x00480811
+#define AHCI_PORT_PHY_5_CFG	0x192c96a4
+#define AHCI_PORT_TRANS_CFG	0x08000025
+
+#define SATA_ECC_REG_ADDR	0x20220520
+#define SATA_ECC_DISABLE	0x00020000
+
+int ls1021a_sata_init(void)
+{
+	struct ccsr_ahci __iomem *ccsr_ahci = (void *)AHCI_BASE_ADDR;
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_A008407
+	out_le32((void *)SATA_ECC_REG_ADDR, SATA_ECC_DISABLE);
+#endif
+
+	out_le32(&ccsr_ahci->ppcfg, AHCI_PORT_PHY_1_CFG);
+	out_le32(&ccsr_ahci->pp2c, AHCI_PORT_PHY_2_CFG);
+	out_le32(&ccsr_ahci->pp3c, AHCI_PORT_PHY_3_CFG);
+	out_le32(&ccsr_ahci->pp4c, AHCI_PORT_PHY_4_CFG);
+	out_le32(&ccsr_ahci->pp5c, AHCI_PORT_PHY_5_CFG);
+	out_le32(&ccsr_ahci->ptc, AHCI_PORT_TRANS_CFG);
+
+	ahci_init((void __iomem *)AHCI_BASE_ADDR);
+	scsi_scan(0);
+
+	return 0;
+}

arch/arm/include/asm/arch-ls102xa/config.h

@@ -79,6 +79,21 @@
 #define CONFIG_SYS_PCIE2_PHYS_ADDR		(CONFIG_SYS_PCIE2_PHYS_BASE + \
 						 CONFIG_SYS_PCIE2_VIRT_ADDR)
 
+/* SATA */
+#define AHCI_BASE_ADDR				(CONFIG_SYS_IMMR + 0x02200000)
+#define CONFIG_BOARD_LATE_INIT
+#define CONFIG_CMD_SCSI
+#define CONFIG_LIBATA
+#define CONFIG_SCSI_AHCI
+#define CONFIG_SCSI_AHCI_PLAT
+#define CONFIG_SYS_SCSI_MAX_SCSI_ID		1
+#define CONFIG_SYS_SCSI_MAX_LUN		1
+#define CONFIG_SYS_SCSI_MAX_DEVICE		(CONFIG_SYS_SCSI_MAX_SCSI_ID * \
+						CONFIG_SYS_SCSI_MAX_LUN)
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+#define CONFIG_SYS_FSL_ERRATUM_A008407
+
 #ifdef CONFIG_DDR_SPD
 #define CONFIG_SYS_FSL_DDR_BE
 #define CONFIG_VERY_BIG_RAM

arch/arm/include/asm/arch-ls102xa/immap_ls102xa.h

@@ -398,4 +398,28 @@ struct ccsr_cci400 {
 	u8 res_e004[0x10000 - 0xe004];
 };
 
+/* AHCI (sata) register map */
+struct ccsr_ahci {
+	u32 res1[0xa4/4];	/* 0x0 - 0xa4 */
+	u32 pcfg;	/* port config */
+	u32 ppcfg;	/* port phy1 config */
+	u32 pp2c;	/* port phy2 config */
+	u32 pp3c;	/* port phy3 config */
+	u32 pp4c;	/* port phy4 config */
+	u32 pp5c;	/* port phy5 config */
+	u32 paxic;	/* port AXI config */
+	u32 axicc;	/* AXI cache control */
+	u32 axipc;	/* AXI PROT control */
+	u32 ptc;	/* port Trans Config */
+	u32 pts;	/* port Trans Status */
+	u32 plc;	/* port link config */
+	u32 plc1;	/* port link config1 */
+	u32 plc2;	/* port link config2 */
+	u32 pls;	/* port link status */
+	u32 pls1;	/* port link status1 */
+	u32 pcmdc;	/* port CMD config */
+	u32 ppcs;	/* port phy control status */
+	u32 pberr;	/* port 0/1 BIST error */
+	u32 cmds;	/* port 0/1 CMD status error */
+};
 #endif	/* __ASM_ARCH_LS102XA_IMMAP_H_ */

arch/arm/include/asm/arch-ls102xa/ls102xa_sata.h

@@ -0,0 +1,11 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __FSL_SATA_H_
+#define __FSL_SATA_H_
+
+int ls1021a_sata_init(void);
+#endif

board/freescale/ls1021aqds/ls1021aqds.c

@@ -12,6 +12,7 @@
 #include <asm/arch/fsl_serdes.h>
 #include <asm/arch/ls102xa_stream_id.h>
 #include <asm/arch/ls102xa_devdis.h>
+#include <asm/arch/ls102xa_sata.h>
 #include <hwconfig.h>
 #include <mmc.h>
 #include <fsl_csu.h>
@@ -407,6 +408,17 @@ int config_serdes_mux(void)
 	return 0;
 }
 
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_SCSI_AHCI_PLAT
+	ls1021a_sata_init();
+#endif
+
+	return 0;
+}
+#endif
+
 int misc_init_r(void)
 {
 	int conflict_flag;

board/freescale/ls1021atwr/ls1021atwr.c

@@ -12,6 +12,7 @@
 #include <asm/arch/fsl_serdes.h>
 #include <asm/arch/ls102xa_stream_id.h>
 #include <asm/arch/ls102xa_devdis.h>
+#include <asm/arch/ls102xa_sata.h>
 #include <hwconfig.h>
 #include <mmc.h>
 #include <fsl_csu.h>
@@ -565,6 +566,17 @@ int board_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+#ifdef CONFIG_SCSI_AHCI_PLAT
+	ls1021a_sata_init();
+#endif
+
+	return 0;
+}
+#endif
+
 #if defined(CONFIG_MISC_INIT_R)
 int misc_init_r(void)
 {