arm: mvebu: add Armada XP SATA support

This patch initializes the SATA address windows on Armada XP and
allows it to work with the existing mvsata_ide driver.
It also adds the necessary configuration for the db-mv784mp-gp board.

Signed-off-by: Anton Schubert <anton.schubert@gmx.de>
Tested-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>

diff --git a/arch/arm/mach-mvebu/include/mach/soc.h b/arch/arm/mach-mvebu/include/mach/soc.h
index 1aaea672eef57fc43ea0f2970ef4ec9f83ff7e1e..619bc7efd1880ffccc4a1d29dba3db34e6551438 100644 (file)
--- a/arch/arm/mach-mvebu/include/mach/soc.h
+++ b/arch/arm/mach-mvebu/include/mach/soc.h
@@ -52,6 +52,7 @@
 #define MVEBU_USB20_BASE       (MVEBU_REGISTER(0x58000))
 #define MVEBU_EGIGA0_BASE      (MVEBU_REGISTER(0x70000))
 #define MVEBU_EGIGA1_BASE      (MVEBU_REGISTER(0x74000))
+#define MVEBU_AXP_SATA_BASE    (MVEBU_REGISTER(0xa0000))
 #define MVEBU_SATA0_BASE       (MVEBU_REGISTER(0xa8000))
 #define MVEBU_SDIO_BASE                (MVEBU_REGISTER(0xd8000))
 

diff --git a/drivers/block/mvsata_ide.c b/drivers/block/mvsata_ide.c
index e54d564bf764d0a6015bf84fc1c6cfd3999eeacd..52c16025f8987e352f259befae07a8fb2b5d65ae 100644 (file)
--- a/drivers/block/mvsata_ide.c
+++ b/drivers/block/mvsata_ide.c
@@ -13,6 +13,8 @@
 #include <asm/arch/orion5x.h>
 #elif defined(CONFIG_KIRKWOOD)
 #include <asm/arch/soc.h>
+#elif defined(CONFIG_ARMADA_XP)
+#include <linux/mbus.h>
 #endif
 
 /* SATA port registers */
@@ -89,6 +91,41 @@ struct mvsata_port_registers {
 #define MVSATA_STATUS_OK       0
 #define MVSATA_STATUS_TIMEOUT  -1
 
+/*
+ * Registers for SATA MBUS memory windows
+ */
+
+#define MVSATA_WIN_CONTROL(w)  (MVEBU_AXP_SATA_BASE + 0x30 + ((w) << 4))
+#define MVSATA_WIN_BASE(w)     (MVEBU_AXP_SATA_BASE + 0x34 + ((w) << 4))
+
+/*
+ * Initialize SATA memory windows for Armada XP
+ */
+
+#ifdef CONFIG_ARMADA_XP
+static void mvsata_ide_conf_mbus_windows(void)
+{
+       const struct mbus_dram_target_info *dram;
+       int i;
+
+       dram = mvebu_mbus_dram_info();
+
+       /* Disable windows, Set Size/Base to 0  */
+       for (i = 0; i < 4; i++) {
+               writel(0, MVSATA_WIN_CONTROL(i));
+               writel(0, MVSATA_WIN_BASE(i));
+       }
+
+       for (i = 0; i < dram->num_cs; i++) {
+               const struct mbus_dram_window *cs = dram->cs + i;
+               writel(((cs->size - 1) & 0xffff0000) | (cs->mbus_attr << 8) |
+                               (dram->mbus_dram_target_id << 4) | 1,
+                               MVSATA_WIN_CONTROL(i));
+               writel(cs->base & 0xffff0000, MVSATA_WIN_BASE(i));
+       }
+}
+#endif
+
 /*
  * Initialize one MVSATAHC port: set SControl's IPM to "always active"
  * and DET to "reset", then wait for SStatus's DET to become "device and
@@ -137,6 +174,10 @@ int ide_preinit(void)
        int ret = MVSATA_STATUS_TIMEOUT;
        int status;
 
+#ifdef CONFIG_ARMADA_XP
+       mvsata_ide_conf_mbus_windows();
+#endif
+
        /* Enable ATA port 0 (could be SATA port 0 or 1) if declared */
 #if defined(CONFIG_SYS_ATA_IDE0_OFFSET)
        status = mvsata_ide_initialize_port(

diff --git a/include/configs/db-mv784mp-gp.h b/include/configs/db-mv784mp-gp.h
index c33a58895a6cc249983cde63b1179c2f4c4f2181..aeddbf93d6ece63d6f08a6732950d325f2333956 100644 (file)
--- a/include/configs/db-mv784mp-gp.h
+++ b/include/configs/db-mv784mp-gp.h
@@ -27,6 +27,7 @@
 #define CONFIG_CMD_DHCP
 #define CONFIG_CMD_ENV
 #define CONFIG_CMD_I2C
+#define CONFIG_CMD_IDE
 #define CONFIG_CMD_PING
 #define CONFIG_CMD_SF
 #define CONFIG_CMD_SPI
@@ -60,6 +61,34 @@
 #define CONFIG_SYS_CONSOLE_INFO_QUIET  /* don't print console @ startup */
 #define CONFIG_SYS_ALT_MEMTEST
 
+/* SATA support */
+#ifdef CONFIG_CMD_IDE
+#define __io
+#define CONFIG_IDE_PREINIT
+#define CONFIG_MVSATA_IDE
+
+/* Needs byte-swapping for ATA data register */
+#define CONFIG_IDE_SWAP_IO
+
+#define CONFIG_SYS_ATA_REG_OFFSET      0x0100 /* Offset for register access */
+#define CONFIG_SYS_ATA_DATA_OFFSET     0x0100 /* Offset for data I/O */
+#define CONFIG_SYS_ATA_ALT_OFFSET      0x0100
+
+/* Each 8-bit ATA register is aligned to a 4-bytes address */
+#define CONFIG_SYS_ATA_STRIDE          4
+
+/* CONFIG_CMD_IDE requires some #defines for ATA registers */
+#define CONFIG_SYS_IDE_MAXBUS          2
+#define CONFIG_SYS_IDE_MAXDEVICE       CONFIG_SYS_IDE_MAXBUS
+
+/* ATA registers base is at SATA controller base */
+#define CONFIG_SYS_ATA_BASE_ADDR       MVEBU_AXP_SATA_BASE
+#define CONFIG_SYS_ATA_IDE0_OFFSET     0x2000
+#define CONFIG_SYS_ATA_IDE1_OFFSET     0x4000
+
+#define CONFIG_DOS_PARTITION
+#endif /* CONFIG_CMD_IDE */
+
 /*
  * mv-common.h should be defined after CMD configs since it used them
  * to enable certain macros