Commit 06fb01fd authored by Philippe Langlais's avatar Philippe Langlais Committed by Grant Likely

spi/pl022: Add loopback support for the SPI on 5500

Extend the vendor data with a loopback field, and add new
amba-pl022 vendor data for the DB5500 pl023, as the pl023
on db8500 and db5500 vary.
Signed-off-by: default avatarPrajadevi H <prajadevi.h@stericsson.com>
Signed-off-by: default avatarPhilippe Langlais <philippe.langlais@linaro.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarGrant Likely <grant.likely@secretlab.ca>
parent 95c5c3ab
......@@ -324,6 +324,7 @@ struct vendor_data {
bool unidir;
bool extended_cr;
bool pl023;
bool loopback;
};
/**
......@@ -1983,7 +1984,7 @@ static int pl022_setup(struct spi_device *spi)
SSP_WRITE_BITS(chip->cr0, clk_freq.scr, SSP_CR0_MASK_SCR, 8);
/* Loopback is available on all versions except PL023 */
if (!pl022->vendor->pl023) {
if (pl022->vendor->loopback) {
if (spi->mode & SPI_LOOP)
tmp = LOOPBACK_ENABLED;
else
......@@ -2233,6 +2234,7 @@ static struct vendor_data vendor_arm = {
.unidir = false,
.extended_cr = false,
.pl023 = false,
.loopback = true,
};
......@@ -2242,6 +2244,7 @@ static struct vendor_data vendor_st = {
.unidir = false,
.extended_cr = true,
.pl023 = false,
.loopback = true,
};
static struct vendor_data vendor_st_pl023 = {
......@@ -2250,6 +2253,16 @@ static struct vendor_data vendor_st_pl023 = {
.unidir = false,
.extended_cr = true,
.pl023 = true,
.loopback = false,
};
static struct vendor_data vendor_db5500_pl023 = {
.fifodepth = 32,
.max_bpw = 32,
.unidir = false,
.extended_cr = true,
.pl023 = true,
.loopback = true,
};
static struct amba_id pl022_ids[] = {
......@@ -2283,6 +2296,11 @@ static struct amba_id pl022_ids[] = {
.mask = 0xffffffff,
.data = &vendor_st_pl023,
},
{
.id = 0x10080023,
.mask = 0xffffffff,
.data = &vendor_db5500_pl023,
},
{ 0, 0 },
};
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment