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| author | Anton Schubert <anton.schubert@gmx.de> | 2015-07-15 14:50:05 +0200 |
|---|---|---|
| committer | Luka Perkov <luka.perkov@sartura.hr> | 2015-07-23 08:30:58 +0200 |
| commit | e863f7f051687b682b948bf5c5493c8b60463113 (patch) | |
| tree | 84995d5100a611654b7c62370e8e08a50ebc7a4a /drivers | |
| parent | b217c89e8565ade3aaa9f74c33c93236bf151187 (diff) | |
| download | talos-obmc-uboot-e863f7f051687b682b948bf5c5493c8b60463113.tar.gz talos-obmc-uboot-e863f7f051687b682b948bf5c5493c8b60463113.zip | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/mvsata_ide.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/block/mvsata_ide.c b/drivers/block/mvsata_ide.c index e54d564bf7..52c16025f8 100644 --- 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 */ @@ -90,6 +92,41 @@ struct mvsata_port_registers { #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 * comm ok" (or time out after 50 us if no device), then set SControl's @@ -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( |
