You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
1.6 KiB
Diff
43 lines
1.6 KiB
Diff
From d3a8ee41170ff9e5298ff354c77ff99439dfe2bf Mon Sep 17 00:00:00 2001
|
|
From: Yunhui Cui <yunhui.cui@nxp.com>
|
|
Date: Thu, 10 Mar 2016 11:33:40 +0800
|
|
Subject: [PATCH 108/113] mtd: fsl-quadspi: add multi flash chip R/W on
|
|
ls2080a
|
|
|
|
There is a hardware feature that qspi_amba_base is added
|
|
internally by SOC design on ls2080a. so memmap_phy need not
|
|
be added in driver. If memmap_phy is added, the flash A1
|
|
addr space is [0, memmap_phy] which far more than flash size.
|
|
The AMBA memory will be divided into four parts and assign to
|
|
every chipselect. Every channel will has two valid chipselects.
|
|
|
|
Signed-off-by: Yunhui Cui <yunhui.cui@nxp.com>
|
|
---
|
|
drivers/mtd/spi-nor/fsl-quadspi.c | 14 ++++++++++----
|
|
1 file changed, 10 insertions(+), 4 deletions(-)
|
|
|
|
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
|
|
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
|
|
@@ -744,11 +744,17 @@ static void fsl_qspi_set_map_addr(struct
|
|
{
|
|
int nor_size = q->nor_size;
|
|
void __iomem *base = q->iobase;
|
|
+ u32 mem_base;
|
|
|
|
- qspi_writel(q, nor_size + q->memmap_phy, base + QUADSPI_SFA1AD);
|
|
- qspi_writel(q, nor_size * 2 + q->memmap_phy, base + QUADSPI_SFA2AD);
|
|
- qspi_writel(q, nor_size * 3 + q->memmap_phy, base + QUADSPI_SFB1AD);
|
|
- qspi_writel(q, nor_size * 4 + q->memmap_phy, base + QUADSPI_SFB2AD);
|
|
+ if (has_added_amba_base_internal(q))
|
|
+ mem_base = 0x0;
|
|
+ else
|
|
+ mem_base = q->memmap_phy;
|
|
+
|
|
+ qspi_writel(q, nor_size + mem_base, base + QUADSPI_SFA1AD);
|
|
+ qspi_writel(q, nor_size * 2 + mem_base, base + QUADSPI_SFA2AD);
|
|
+ qspi_writel(q, nor_size * 3 + mem_base, base + QUADSPI_SFB1AD);
|
|
+ qspi_writel(q, nor_size * 4 + mem_base, base + QUADSPI_SFB2AD);
|
|
}
|
|
|
|
/*
|