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path: root/drivers/mtd/nand/raw/brcmnand/brcmnand.c
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Diffstat (limited to 'drivers/mtd/nand/raw/brcmnand/brcmnand.c')
-rw-r--r--drivers/mtd/nand/raw/brcmnand/brcmnand.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/mtd/nand/raw/brcmnand/brcmnand.c b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
index 15ef30b368a5..1a66b1cd51c0 100644
--- a/drivers/mtd/nand/raw/brcmnand/brcmnand.c
+++ b/drivers/mtd/nand/raw/brcmnand/brcmnand.c
@@ -117,6 +117,18 @@ enum flash_dma_reg {
FLASH_DMA_CURRENT_DESC_EXT,
};
+/* flash_dma registers v0*/
+static const u16 flash_dma_regs_v0[] = {
+ [FLASH_DMA_REVISION] = 0x00,
+ [FLASH_DMA_FIRST_DESC] = 0x04,
+ [FLASH_DMA_CTRL] = 0x08,
+ [FLASH_DMA_MODE] = 0x0c,
+ [FLASH_DMA_STATUS] = 0x10,
+ [FLASH_DMA_INTERRUPT_DESC] = 0x14,
+ [FLASH_DMA_ERROR_STATUS] = 0x18,
+ [FLASH_DMA_CURRENT_DESC] = 0x1c,
+};
+
/* flash_dma registers v1*/
static const u16 flash_dma_regs_v1[] = {
[FLASH_DMA_REVISION] = 0x00,
@@ -597,6 +609,8 @@ static void brcmnand_flash_dma_revision_init(struct brcmnand_controller *ctrl)
/* flash_dma register offsets */
if (ctrl->nand_version >= 0x0703)
ctrl->flash_dma_offsets = flash_dma_regs_v4;
+ else if (ctrl->nand_version == 0x0602)
+ ctrl->flash_dma_offsets = flash_dma_regs_v0;
else
ctrl->flash_dma_offsets = flash_dma_regs_v1;
}
@@ -918,7 +932,7 @@ static inline void disable_ctrl_irqs(struct brcmnand_controller *ctrl)
return;
if (has_flash_dma(ctrl)) {
- ctrl->flash_dma_base = 0;
+ ctrl->flash_dma_base = NULL;
disable_irq(ctrl->dma_irq);
}
@@ -1673,8 +1687,11 @@ static void brcmnand_dma_run(struct brcmnand_host *host, dma_addr_t desc)
flash_dma_writel(ctrl, FLASH_DMA_FIRST_DESC, lower_32_bits(desc));
(void)flash_dma_readl(ctrl, FLASH_DMA_FIRST_DESC);
- flash_dma_writel(ctrl, FLASH_DMA_FIRST_DESC_EXT, upper_32_bits(desc));
- (void)flash_dma_readl(ctrl, FLASH_DMA_FIRST_DESC_EXT);
+ if (ctrl->nand_version > 0x0602) {
+ flash_dma_writel(ctrl, FLASH_DMA_FIRST_DESC_EXT,
+ upper_32_bits(desc));
+ (void)flash_dma_readl(ctrl, FLASH_DMA_FIRST_DESC_EXT);
+ }
/* Start FLASH_DMA engine */
ctrl->dma_pending = true;