From 0ceb2dae788848ad6df9fb1cc0e20e632f380887 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Thu, 6 Aug 2015 14:43:13 +0200 Subject: arm: mvebu: Add complete SDRAM ECC scrubbing This patch introduces the SDRAM scrubbing for ECC enabled board to fill/initialize the ECC bytes. This is done via the XOR engine to speed up the process. The scrubbing is a 2-stage process: 1) SPL scrubs the area 0 - 0x100.0000 (16MiB) for the main U-Boot 2) U-Boot scrubs the remaining SDRAM area(s) Signed-off-by: Stefan Roese Cc: Luka Perkov --- drivers/ddr/marvell/axp/xor.c | 3 +-- drivers/ddr/marvell/axp/xor.h | 1 + 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ddr/marvell/axp/xor.c b/drivers/ddr/marvell/axp/xor.c index 66c96aef4e..54924cac3c 100644 --- a/drivers/ddr/marvell/axp/xor.c +++ b/drivers/ddr/marvell/axp/xor.c @@ -18,7 +18,6 @@ static u32 xor_regs_ctrl_backup; static u32 xor_regs_base_backup[MAX_CS]; static u32 xor_regs_mask_backup[MAX_CS]; -static void mv_xor_hal_init(u32 chan_num); static int mv_xor_cmd_set(u32 chan, int command); static int mv_xor_ctrl_set(u32 chan, u32 xor_ctrl); @@ -110,7 +109,7 @@ void mv_sys_xor_finish(void) * RETURN: * MV_BAD_PARAM if parameters to function invalid, MV_OK otherwise. */ -static void mv_xor_hal_init(u32 chan_num) +void mv_xor_hal_init(u32 chan_num) { u32 i; diff --git a/drivers/ddr/marvell/axp/xor.h b/drivers/ddr/marvell/axp/xor.h index 353648758a..3ff784d7a9 100644 --- a/drivers/ddr/marvell/axp/xor.h +++ b/drivers/ddr/marvell/axp/xor.h @@ -60,6 +60,7 @@ struct crc_dma_desc { u32 src_addr1; /* Mode: Source Block address pointer */ } __packed; +void mv_xor_hal_init(u32 chan_num); int mv_xor_state_get(u32 chan); void mv_sys_xor_init(MV_DRAM_INFO *dram_info); void mv_sys_xor_finish(void); -- cgit v1.2.1