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| author | Nikita Kiryanov <nikita@compulab.co.il> | 2014-08-20 15:08:50 +0300 |
|---|---|---|
| committer | Jagannadha Sutradharudu Teki <jaganna@xilinx.com> | 2014-09-24 17:25:39 +0530 |
| commit | 155fa9af95ac5be857a7327e7a968a296e60d4c8 (patch) | |
| tree | a35b45e4eee9707e0661e0da7f86b28b6ab393b6 /include | |
| parent | 01d2aaf61ba7d532dee7002a2049d2b972992122 (diff) | |
| download | u-boot-imx-155fa9af95ac5be857a7327e7a968a296e60d4c8.zip u-boot-imx-155fa9af95ac5be857a7327e7a968a296e60d4c8.tar.gz u-boot-imx-155fa9af95ac5be857a7327e7a968a296e60d4c8.tar.bz2 | |
spi: mxc: fix sf probe when using mxc_spi
MXC SPI driver has a feature whereas a GPIO line can be used to force CS high
across multiple transactions. This is set up by embedding the GPIO information
in the CS value:
cs = (cs | gpio << 8)
This merge of cs and gpio data into one value breaks the sf probe command:
if the use of gpio is required, invoking "sf probe <cs>" will not work, because
the CS argument doesn't have the GPIO information in it. Instead, the user must
use "sf probe <cs | gpio << 8>". For example, if bank 2 gpio 30 is used to force
cs high on cs 0, bus 0, then instead of typing "sf probe 0" the user now must
type "sf probe 15872".
This is inconsistent with the description of the sf probe command, and forces
the user to be aware of implementaiton details.
Fix this by introducing a new board function: board_spi_cs_gpio(), which will
accept a naked CS value, and provide the driver with the relevant GPIO, if one
is necessary.
Cc: Eric Nelson <eric.nelson@boundarydevices.com>
Cc: Eric Benard <eric@eukrea.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Marek Vasut <marex@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/configs/embestmx6boards.h | 2 | ||||
| -rw-r--r-- | include/configs/gw_ventana.h | 2 | ||||
| -rw-r--r-- | include/configs/mx51_efikamx.h | 4 | ||||
| -rw-r--r-- | include/configs/mx6sabre_common.h | 2 | ||||
| -rw-r--r-- | include/configs/mx6slevk.h | 2 | ||||
| -rw-r--r-- | include/configs/nitrogen6x.h | 2 | ||||
| -rw-r--r-- | include/configs/vision2.h | 4 |
7 files changed, 9 insertions, 9 deletions
diff --git a/include/configs/embestmx6boards.h b/include/configs/embestmx6boards.h index a7fd43b..185edbe 100644 --- a/include/configs/embestmx6boards.h +++ b/include/configs/embestmx6boards.h @@ -102,7 +102,7 @@ #define CONFIG_SPI_FLASH_SST #define CONFIG_MXC_SPI #define CONFIG_SF_DEFAULT_BUS 0 -#define CONFIG_SF_DEFAULT_CS (0 | (IMX_GPIO_NR(2, 30) << 8)) +#define CONFIG_SF_DEFAULT_CS 0 #define CONFIG_SF_DEFAULT_SPEED 20000000 #define CONFIG_SF_DEFAULT_MODE SPI_MODE_0 #endif diff --git a/include/configs/gw_ventana.h b/include/configs/gw_ventana.h index 0e5c200..620f950 100644 --- a/include/configs/gw_ventana.h +++ b/include/configs/gw_ventana.h @@ -61,7 +61,7 @@ #define CONFIG_SPI_FLASH_BAR #define CONFIG_SPI_FLASH_WINBOND #define CONFIG_SF_DEFAULT_BUS 0 - #define CONFIG_SF_DEFAULT_CS (0|(IMX_GPIO_NR(3, 19)<<8)) + #define CONFIG_SF_DEFAULT_CS 0 /* GPIO 3-19 (21248) */ #define CONFIG_SF_DEFAULT_SPEED 30000000 #define CONFIG_SF_DEFAULT_MODE (SPI_MODE_0) diff --git a/include/configs/mx51_efikamx.h b/include/configs/mx51_efikamx.h index 0f2a4ef..fce7ead 100644 --- a/include/configs/mx51_efikamx.h +++ b/include/configs/mx51_efikamx.h @@ -96,11 +96,11 @@ #define CONFIG_SPI_FLASH #define CONFIG_SPI_FLASH_SST -#define CONFIG_SF_DEFAULT_CS (1 | 121 << 8) +#define CONFIG_SF_DEFAULT_CS 1 #define CONFIG_SF_DEFAULT_MODE (SPI_MODE_0) #define CONFIG_SF_DEFAULT_SPEED 25000000 -#define CONFIG_ENV_SPI_CS (1 | 121 << 8) +#define CONFIG_ENV_SPI_CS CONFIG_SF_DEFAULT_CS #define CONFIG_ENV_SPI_BUS 0 #define CONFIG_ENV_SPI_MAX_HZ 25000000 #define CONFIG_ENV_SPI_MODE (SPI_MODE_0) diff --git a/include/configs/mx6sabre_common.h b/include/configs/mx6sabre_common.h index e59a3b4..2d93d6c 100644 --- a/include/configs/mx6sabre_common.h +++ b/include/configs/mx6sabre_common.h @@ -74,7 +74,7 @@ #define CONFIG_SPI_FLASH_STMICRO #define CONFIG_MXC_SPI #define CONFIG_SF_DEFAULT_BUS 0 -#define CONFIG_SF_DEFAULT_CS (0 | (IMX_GPIO_NR(4, 9) << 8)) +#define CONFIG_SF_DEFAULT_CS 0 #define CONFIG_SF_DEFAULT_SPEED 20000000 #define CONFIG_SF_DEFAULT_MODE SPI_MODE_0 #endif diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h index 194d7bd..4208ba1 100644 --- a/include/configs/mx6slevk.h +++ b/include/configs/mx6slevk.h @@ -205,7 +205,7 @@ #define CONFIG_SPI_FLASH_STMICRO #define CONFIG_MXC_SPI #define CONFIG_SF_DEFAULT_BUS 0 -#define CONFIG_SF_DEFAULT_CS (0 | (IMX_GPIO_NR(4, 11) << 8)) +#define CONFIG_SF_DEFAULT_CS 0 #define CONFIG_SF_DEFAULT_SPEED 20000000 #define CONFIG_SF_DEFAULT_MODE SPI_MODE_0 #endif diff --git a/include/configs/nitrogen6x.h b/include/configs/nitrogen6x.h index d4b0ac9..39d5bb3 100644 --- a/include/configs/nitrogen6x.h +++ b/include/configs/nitrogen6x.h @@ -53,7 +53,7 @@ #define CONFIG_SPI_FLASH_SST #define CONFIG_MXC_SPI #define CONFIG_SF_DEFAULT_BUS 0 -#define CONFIG_SF_DEFAULT_CS (0|(IMX_GPIO_NR(3, 19)<<8)) +#define CONFIG_SF_DEFAULT_CS 0 #define CONFIG_SF_DEFAULT_SPEED 25000000 #define CONFIG_SF_DEFAULT_MODE (SPI_MODE_0) #endif diff --git a/include/configs/vision2.h b/include/configs/vision2.h index 6891bf8..3f35076 100644 --- a/include/configs/vision2.h +++ b/include/configs/vision2.h @@ -57,11 +57,11 @@ * Use gpio 4 pin 25 as chip select for SPI flash * This corresponds to gpio 121 */ -#define CONFIG_SF_DEFAULT_CS (1 | (121 << 8)) +#define CONFIG_SF_DEFAULT_CS 1 #define CONFIG_SF_DEFAULT_MODE SPI_MODE_0 #define CONFIG_SF_DEFAULT_SPEED 25000000 -#define CONFIG_ENV_SPI_CS (1 | (121 << 8)) +#define CONFIG_ENV_SPI_CS CONFIG_SF_DEFAULT_CS #define CONFIG_ENV_SPI_BUS 0 #define CONFIG_ENV_SPI_MAX_HZ 25000000 #define CONFIG_ENV_SPI_MODE SPI_MODE_0 |