* [U-Boot] [PATCH 0/2] SPI: mxc_spi: slave initialisation fixes
@ 2014-09-01 8:46 Markus Niebel
2014-09-01 8:46 ` [U-Boot] [PATCH 1/2] SPI: mxc_spi: remove second reset from ECSPI config handler Markus Niebel
2014-09-01 8:46 ` [U-Boot] [PATCH 2/2] SPI: mxc_spi: delay initialisation until claim bus Markus Niebel
0 siblings, 2 replies; 7+ messages in thread
From: Markus Niebel @ 2014-09-01 8:46 UTC (permalink / raw)
To: u-boot
From: Markus Niebel <Markus.Niebel@tq-group.com>
current implementation of the mxc_spi host driver gives issues,
if using more than one slave on the same bus. These patches try
to improve this use case.
They were tested on a TQMa6S (i.MC6S) with a custom mainboard
using two slave devices in SPI MODE 0 and 3, on of the devices
uses gpio based chip select the other hardware base chip select.
Markus Niebel (2):
SPI: mxc_spi: remove second reset from ECSPI config handler
SPI: mxc_spi: delay initialisation until claim bus
drivers/spi/mxc_spi.c | 40 +++++++++++++++++++++-------------------
1 file changed, 21 insertions(+), 19 deletions(-)
--
2.1.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH 1/2] SPI: mxc_spi: remove second reset from ECSPI config handler
2014-09-01 8:46 [U-Boot] [PATCH 0/2] SPI: mxc_spi: slave initialisation fixes Markus Niebel
@ 2014-09-01 8:46 ` Markus Niebel
2014-09-12 8:50 ` Stefano Babic
2014-09-01 8:46 ` [U-Boot] [PATCH 2/2] SPI: mxc_spi: delay initialisation until claim bus Markus Niebel
1 sibling, 1 reply; 7+ messages in thread
From: Markus Niebel @ 2014-09-01 8:46 UTC (permalink / raw)
To: u-boot
From: Markus Niebel <Markus.Niebel@tq-group.com>
the second reset prevents other registers to be written.
This will prevent to have the correct signal levels for
SCLK before writing to the config reg in spi_xchg_single.
Tested with GPIO based chipselect and SPI_MODE_3 on i.MX6S
Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
---
drivers/spi/mxc_spi.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 2d5f385..6a05d15 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -163,9 +163,6 @@ static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
reg_ctrl = (reg_ctrl & ~MXC_CSPICTRL_POSTDIV(0x0F)) |
MXC_CSPICTRL_POSTDIV(post_div);
- /* We need to disable SPI before changing registers */
- reg_ctrl &= ~MXC_CSPICTRL_EN;
-
if (mode & SPI_CS_HIGH)
ss_pol = 1;
--
2.1.0
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH 2/2] SPI: mxc_spi: delay initialisation until claim bus
2014-09-01 8:46 [U-Boot] [PATCH 0/2] SPI: mxc_spi: slave initialisation fixes Markus Niebel
2014-09-01 8:46 ` [U-Boot] [PATCH 1/2] SPI: mxc_spi: remove second reset from ECSPI config handler Markus Niebel
@ 2014-09-01 8:46 ` Markus Niebel
2014-09-24 18:23 ` Jagan Teki
1 sibling, 1 reply; 7+ messages in thread
From: Markus Niebel @ 2014-09-01 8:46 UTC (permalink / raw)
To: u-boot
From: Markus Niebel <Markus.Niebel@tq-group.com>
it is not correct to init for a specific slave in spi_setup_slave.
instead buffer the values and delay init until spi_claim_bus.
Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
---
drivers/spi/mxc_spi.c | 37 +++++++++++++++++++++----------------
1 file changed, 21 insertions(+), 16 deletions(-)
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 6a05d15..c741738 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -43,6 +43,8 @@ struct mxc_spi_slave {
#endif
int gpio;
int ss_pol;
+ unsigned int max_hz;
+ unsigned int mode;
};
static inline struct mxc_spi_slave *to_mxc_spi_slave(struct spi_slave *slave)
@@ -77,12 +79,13 @@ u32 get_cspi_div(u32 div)
}
#ifdef MXC_CSPI
-static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
+static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs)
{
unsigned int ctrl_reg;
u32 clk_src;
u32 div;
+ unsigned int max_hz = mxcs->max_hz;
+ unsigned int mode = mxcs->mode;
clk_src = mxc_get_clock(MXC_CSPI_CLK);
@@ -114,19 +117,15 @@ static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
#endif
#ifdef MXC_ECSPI
-static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
- unsigned int max_hz, unsigned int mode)
+static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs)
{
u32 clk_src = mxc_get_clock(MXC_CSPI_CLK);
s32 reg_ctrl, reg_config;
u32 ss_pol = 0, sclkpol = 0, sclkpha = 0, sclkctl = 0;
u32 pre_div = 0, post_div = 0;
struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
-
- if (max_hz == 0) {
- printf("Error: desired clock is 0\n");
- return -1;
- }
+ unsigned int max_hz = mxcs->max_hz;
+ unsigned int mode = mxcs->mode;
/*
* Reset SPI and set all CSs to master mode, if toggling
@@ -404,6 +403,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
if (bus >= ARRAY_SIZE(spi_bases))
return NULL;
+ if (max_hz == 0) {
+ printf("Error: desired clock is 0\n");
+ return NULL;
+ }
+
mxcs = spi_alloc_slave(struct mxc_spi_slave, bus, cs);
if (!mxcs) {
puts("mxc_spi: SPI Slave not allocated !\n");
@@ -421,13 +425,9 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
cs = ret;
mxcs->base = spi_bases[bus];
+ mxcs->max_hz = max_hz;
+ mxcs->mode = mode;
- ret = spi_cfg_mxc(mxcs, cs, max_hz, mode);
- if (ret) {
- printf("mxc_spi: cannot setup SPI controller\n");
- free(mxcs);
- return NULL;
- }
return &mxcs->slave;
}
@@ -440,12 +440,17 @@ void spi_free_slave(struct spi_slave *slave)
int spi_claim_bus(struct spi_slave *slave)
{
+ int ret;
struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave);
struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
reg_write(®s->rxdata, 1);
udelay(1);
- reg_write(®s->ctrl, mxcs->ctrl_reg);
+ ret = spi_cfg_mxc(mxcs, slave->cs);
+ if (ret) {
+ printf("mxc_spi: cannot setup SPI controller\n");
+ return ret;
+ }
reg_write(®s->period, MXC_CSPIPERIOD_32KHZ);
reg_write(®s->intr, 0);
--
2.1.0
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH 1/2] SPI: mxc_spi: remove second reset from ECSPI config handler
2014-09-01 8:46 ` [U-Boot] [PATCH 1/2] SPI: mxc_spi: remove second reset from ECSPI config handler Markus Niebel
@ 2014-09-12 8:50 ` Stefano Babic
2014-09-12 9:10 ` Jagan Teki
0 siblings, 1 reply; 7+ messages in thread
From: Stefano Babic @ 2014-09-12 8:50 UTC (permalink / raw)
To: u-boot
Hi Markus,
On 01/09/2014 10:46, Markus Niebel wrote:
> From: Markus Niebel <Markus.Niebel@tq-group.com>
>
> the second reset prevents other registers to be written.
> This will prevent to have the correct signal levels for
> SCLK before writing to the config reg in spi_xchg_single.
>
> Tested with GPIO based chipselect and SPI_MODE_3 on i.MX6S
>
> Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
> ---
> drivers/spi/mxc_spi.c | 3 ---
> 1 file changed, 3 deletions(-)
>
> diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
> index 2d5f385..6a05d15 100644
> --- a/drivers/spi/mxc_spi.c
> +++ b/drivers/spi/mxc_spi.c
> @@ -163,9 +163,6 @@ static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
> reg_ctrl = (reg_ctrl & ~MXC_CSPICTRL_POSTDIV(0x0F)) |
> MXC_CSPICTRL_POSTDIV(post_div);
>
> - /* We need to disable SPI before changing registers */
> - reg_ctrl &= ~MXC_CSPICTRL_EN;
> -
> if (mode & SPI_CS_HIGH)
> ss_pol = 1;
>
>
Acked-by: Stefano Babic <sbabic@denx.de>
Jagannadha, this series is currently assigned to me in patchwork. Should
I merge into u-boot-imx or do you prefer to merge the two patches into
u-boot-spi ?
Best regards,
Stefano Babic
--
=====================================================================
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH 1/2] SPI: mxc_spi: remove second reset from ECSPI config handler
2014-09-12 8:50 ` Stefano Babic
@ 2014-09-12 9:10 ` Jagan Teki
0 siblings, 0 replies; 7+ messages in thread
From: Jagan Teki @ 2014-09-12 9:10 UTC (permalink / raw)
To: u-boot
I will pick!
On 12 September 2014 14:20, Stefano Babic <sbabic@denx.de> wrote:
> Hi Markus,
>
> On 01/09/2014 10:46, Markus Niebel wrote:
>> From: Markus Niebel <Markus.Niebel@tq-group.com>
>>
>> the second reset prevents other registers to be written.
>> This will prevent to have the correct signal levels for
>> SCLK before writing to the config reg in spi_xchg_single.
>>
>> Tested with GPIO based chipselect and SPI_MODE_3 on i.MX6S
>>
>> Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
>> ---
>> drivers/spi/mxc_spi.c | 3 ---
>> 1 file changed, 3 deletions(-)
>>
>> diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
>> index 2d5f385..6a05d15 100644
>> --- a/drivers/spi/mxc_spi.c
>> +++ b/drivers/spi/mxc_spi.c
>> @@ -163,9 +163,6 @@ static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
>> reg_ctrl = (reg_ctrl & ~MXC_CSPICTRL_POSTDIV(0x0F)) |
>> MXC_CSPICTRL_POSTDIV(post_div);
>>
>> - /* We need to disable SPI before changing registers */
>> - reg_ctrl &= ~MXC_CSPICTRL_EN;
>> -
>> if (mode & SPI_CS_HIGH)
>> ss_pol = 1;
>>
>>
>
> Acked-by: Stefano Babic <sbabic@denx.de>
>
> Jagannadha, this series is currently assigned to me in patchwork. Should
> I merge into u-boot-imx or do you prefer to merge the two patches into
> u-boot-spi ?
>
> Best regards,
> Stefano Babic
>
> --
> =====================================================================
> DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
> =====================================================================
--
Jagan.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH 2/2] SPI: mxc_spi: delay initialisation until claim bus
2014-09-01 8:46 ` [U-Boot] [PATCH 2/2] SPI: mxc_spi: delay initialisation until claim bus Markus Niebel
@ 2014-09-24 18:23 ` Jagan Teki
2014-09-24 18:42 ` Jagan Teki
0 siblings, 1 reply; 7+ messages in thread
From: Jagan Teki @ 2014-09-24 18:23 UTC (permalink / raw)
To: u-boot
On 1 September 2014 14:16, Markus Niebel <list-09_u-boot@tqsc.de> wrote:
> From: Markus Niebel <Markus.Niebel@tq-group.com>
>
> it is not correct to init for a specific slave in spi_setup_slave.
> instead buffer the values and delay init until spi_claim_bus.
>
> Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
> ---
> drivers/spi/mxc_spi.c | 37 +++++++++++++++++++++----------------
> 1 file changed, 21 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
> index 6a05d15..c741738 100644
> --- a/drivers/spi/mxc_spi.c
> +++ b/drivers/spi/mxc_spi.c
> @@ -43,6 +43,8 @@ struct mxc_spi_slave {
> #endif
> int gpio;
> int ss_pol;
> + unsigned int max_hz;
> + unsigned int mode;
> };
>
> static inline struct mxc_spi_slave *to_mxc_spi_slave(struct spi_slave *slave)
> @@ -77,12 +79,13 @@ u32 get_cspi_div(u32 div)
> }
>
> #ifdef MXC_CSPI
> -static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
> - unsigned int max_hz, unsigned int mode)
> +static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs)
> {
> unsigned int ctrl_reg;
> u32 clk_src;
> u32 div;
> + unsigned int max_hz = mxcs->max_hz;
> + unsigned int mode = mxcs->mode;
>
> clk_src = mxc_get_clock(MXC_CSPI_CLK);
>
> @@ -114,19 +117,15 @@ static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
> #endif
>
> #ifdef MXC_ECSPI
> -static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
> - unsigned int max_hz, unsigned int mode)
> +static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs)
> {
> u32 clk_src = mxc_get_clock(MXC_CSPI_CLK);
> s32 reg_ctrl, reg_config;
> u32 ss_pol = 0, sclkpol = 0, sclkpha = 0, sclkctl = 0;
> u32 pre_div = 0, post_div = 0;
> struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
> -
> - if (max_hz == 0) {
> - printf("Error: desired clock is 0\n");
> - return -1;
> - }
> + unsigned int max_hz = mxcs->max_hz;
> + unsigned int mode = mxcs->mode;
>
> /*
> * Reset SPI and set all CSs to master mode, if toggling
> @@ -404,6 +403,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
> if (bus >= ARRAY_SIZE(spi_bases))
> return NULL;
>
> + if (max_hz == 0) {
> + printf("Error: desired clock is 0\n");
> + return NULL;
> + }
> +
> mxcs = spi_alloc_slave(struct mxc_spi_slave, bus, cs);
> if (!mxcs) {
> puts("mxc_spi: SPI Slave not allocated !\n");
> @@ -421,13 +425,9 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
> cs = ret;
>
> mxcs->base = spi_bases[bus];
> + mxcs->max_hz = max_hz;
> + mxcs->mode = mode;
>
> - ret = spi_cfg_mxc(mxcs, cs, max_hz, mode);
> - if (ret) {
> - printf("mxc_spi: cannot setup SPI controller\n");
> - free(mxcs);
> - return NULL;
> - }
> return &mxcs->slave;
> }
>
> @@ -440,12 +440,17 @@ void spi_free_slave(struct spi_slave *slave)
>
> int spi_claim_bus(struct spi_slave *slave)
> {
> + int ret;
> struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave);
> struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
>
> reg_write(®s->rxdata, 1);
> udelay(1);
> - reg_write(®s->ctrl, mxcs->ctrl_reg);
> + ret = spi_cfg_mxc(mxcs, slave->cs);
> + if (ret) {
> + printf("mxc_spi: cannot setup SPI controller\n");
> + return ret;
> + }
> reg_write(®s->period, MXC_CSPIPERIOD_32KHZ);
> reg_write(®s->intr, 0);
>
> --
> 2.1.0
>
In fact this driver is using spi_cfg_mxc() for configuring SPI
clock,polarities and frequency
in spi_setup_slave() time, but usually spi_setup_slave() will require
only basic controller reg
initialization. So while in spi_claim_bus() clock, polarities and
frequencies will handle.
Please think on that direction and will be good if you fix those and
send the patches for next time.
thanks!
--
Jagan.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] [PATCH 2/2] SPI: mxc_spi: delay initialisation until claim bus
2014-09-24 18:23 ` Jagan Teki
@ 2014-09-24 18:42 ` Jagan Teki
0 siblings, 0 replies; 7+ messages in thread
From: Jagan Teki @ 2014-09-24 18:42 UTC (permalink / raw)
To: u-boot
On 24 September 2014 23:53, Jagan Teki <jagannadh.teki@gmail.com> wrote:
> On 1 September 2014 14:16, Markus Niebel <list-09_u-boot@tqsc.de> wrote:
>> From: Markus Niebel <Markus.Niebel@tq-group.com>
>>
>> it is not correct to init for a specific slave in spi_setup_slave.
>> instead buffer the values and delay init until spi_claim_bus.
>>
>> Signed-off-by: Markus Niebel <Markus.Niebel@tq-group.com>
>> ---
>> drivers/spi/mxc_spi.c | 37 +++++++++++++++++++++----------------
>> 1 file changed, 21 insertions(+), 16 deletions(-)
>>
>> diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
>> index 6a05d15..c741738 100644
>> --- a/drivers/spi/mxc_spi.c
>> +++ b/drivers/spi/mxc_spi.c
>> @@ -43,6 +43,8 @@ struct mxc_spi_slave {
>> #endif
>> int gpio;
>> int ss_pol;
>> + unsigned int max_hz;
>> + unsigned int mode;
>> };
>>
>> static inline struct mxc_spi_slave *to_mxc_spi_slave(struct spi_slave *slave)
>> @@ -77,12 +79,13 @@ u32 get_cspi_div(u32 div)
>> }
>>
>> #ifdef MXC_CSPI
>> -static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
>> - unsigned int max_hz, unsigned int mode)
>> +static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs)
>> {
>> unsigned int ctrl_reg;
>> u32 clk_src;
>> u32 div;
>> + unsigned int max_hz = mxcs->max_hz;
>> + unsigned int mode = mxcs->mode;
>>
>> clk_src = mxc_get_clock(MXC_CSPI_CLK);
>>
>> @@ -114,19 +117,15 @@ static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
>> #endif
>>
>> #ifdef MXC_ECSPI
>> -static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs,
>> - unsigned int max_hz, unsigned int mode)
>> +static s32 spi_cfg_mxc(struct mxc_spi_slave *mxcs, unsigned int cs)
>> {
>> u32 clk_src = mxc_get_clock(MXC_CSPI_CLK);
>> s32 reg_ctrl, reg_config;
>> u32 ss_pol = 0, sclkpol = 0, sclkpha = 0, sclkctl = 0;
>> u32 pre_div = 0, post_div = 0;
>> struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
>> -
>> - if (max_hz == 0) {
>> - printf("Error: desired clock is 0\n");
>> - return -1;
>> - }
>> + unsigned int max_hz = mxcs->max_hz;
>> + unsigned int mode = mxcs->mode;
>>
>> /*
>> * Reset SPI and set all CSs to master mode, if toggling
>> @@ -404,6 +403,11 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
>> if (bus >= ARRAY_SIZE(spi_bases))
>> return NULL;
>>
>> + if (max_hz == 0) {
>> + printf("Error: desired clock is 0\n");
>> + return NULL;
>> + }
>> +
>> mxcs = spi_alloc_slave(struct mxc_spi_slave, bus, cs);
>> if (!mxcs) {
>> puts("mxc_spi: SPI Slave not allocated !\n");
>> @@ -421,13 +425,9 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
>> cs = ret;
>>
>> mxcs->base = spi_bases[bus];
>> + mxcs->max_hz = max_hz;
>> + mxcs->mode = mode;
>>
>> - ret = spi_cfg_mxc(mxcs, cs, max_hz, mode);
>> - if (ret) {
>> - printf("mxc_spi: cannot setup SPI controller\n");
>> - free(mxcs);
>> - return NULL;
>> - }
>> return &mxcs->slave;
>> }
>>
>> @@ -440,12 +440,17 @@ void spi_free_slave(struct spi_slave *slave)
>>
>> int spi_claim_bus(struct spi_slave *slave)
>> {
>> + int ret;
>> struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave);
>> struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
>>
>> reg_write(®s->rxdata, 1);
>> udelay(1);
>> - reg_write(®s->ctrl, mxcs->ctrl_reg);
>> + ret = spi_cfg_mxc(mxcs, slave->cs);
>> + if (ret) {
>> + printf("mxc_spi: cannot setup SPI controller\n");
>> + return ret;
>> + }
>> reg_write(®s->period, MXC_CSPIPERIOD_32KHZ);
>> reg_write(®s->intr, 0);
>>
>> --
>> 2.1.0
>>
>
> In fact this driver is using spi_cfg_mxc() for configuring SPI
> clock,polarities and frequency
> in spi_setup_slave() time, but usually spi_setup_slave() will require
> only basic controller reg
> initialization. So while in spi_claim_bus() clock, polarities and
> frequencies will handle.
>
> Please think on that direction and will be good if you fix those and
> send the patches for next time.
I think you did the same, what I mentioned above, could you rebase this
patch on master, I have seen patch failed error while applying.
thanks!
--
Jagan.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2014-09-24 18:42 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-09-01 8:46 [U-Boot] [PATCH 0/2] SPI: mxc_spi: slave initialisation fixes Markus Niebel
2014-09-01 8:46 ` [U-Boot] [PATCH 1/2] SPI: mxc_spi: remove second reset from ECSPI config handler Markus Niebel
2014-09-12 8:50 ` Stefano Babic
2014-09-12 9:10 ` Jagan Teki
2014-09-01 8:46 ` [U-Boot] [PATCH 2/2] SPI: mxc_spi: delay initialisation until claim bus Markus Niebel
2014-09-24 18:23 ` Jagan Teki
2014-09-24 18:42 ` Jagan Teki
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