diff --git a/board/boundary/nitrogen6x/nitrogen6x.c b/board/boundary/nitrogen6x/nitrogen6x.c
index 60a09f4bb3e85cb7833c2900ecc1f53aab79c7c7..7edfe19367521dcee2d3a56f9d953fa5790d33ed 100644
--- a/board/boundary/nitrogen6x/nitrogen6x.c
+++ b/board/boundary/nitrogen6x/nitrogen6x.c
@@ -328,6 +328,11 @@ int board_mmc_init(bd_t *bis)
#endif
#ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -1;
+}
+
iomux_v3_cfg_t const ecspi1_pads[] = {
/* SS1 */
MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),
diff --git a/board/embest/mx6boards/mx6boards.c b/board/embest/mx6boards/mx6boards.c
index 530ea4f3c48d6205916977856d5f7f95f1be77f6..a725f15a2eb8172b540aac191b4b38ca6d1626df 100644
--- a/board/embest/mx6boards/mx6boards.c
+++ b/board/embest/mx6boards/mx6boards.c
@@ -285,6 +285,11 @@ iomux_v3_cfg_t const ecspi1_pads[] = {
MX6_PAD_EIM_EB2__GPIO2_IO30 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(2, 30)) : -1;
+}
+
static void setup_spi(void)
{
imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
index 928dadf80936b7fa179e7b99bd536bdf836eeb9b..836d7221b09c7388764dd57f9ced8efd97632d0d 100644
--- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
+++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
@@ -259,6 +259,13 @@ int board_init(void)
return 0;
}
+#ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 9)) : -1;
+}
+#endif
+
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c
index 80c8ebdafcc39da661abaf0833ad11e70ce04ee9..81dcd6e5ddb879ae3aa4ed9e8a0e800b63929459 100644
--- a/board/freescale/mx6sabresd/mx6sabresd.c
+++ b/board/freescale/mx6sabresd/mx6sabresd.c
@@ -513,6 +513,13 @@ static int pfuze_init(void)
return 0;
}
+#ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 9)) : -1;
+}
+#endif
+
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c
index a990b4cea8ee744abafa7cade88bfb1725402472..a0832f4a201e63ce6e8ec99b4d87b99667b2e1dd 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -82,6 +82,11 @@ static iomux_v3_cfg_t ecspi1_pads[] = {
MX6_PAD_ECSPI1_SS0__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 11)) : -1;
+}
+
static void setup_spi(void)
{
imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
diff --git a/board/gateworks/gw_ventana/gw_ventana.c b/board/gateworks/gw_ventana/gw_ventana.c
index 8d086f84abea5381b185d70558de0cc633b3d82f..1038d9d975a4347e8e48a575fc06f96f2919d800 100644
--- a/board/gateworks/gw_ventana/gw_ventana.c
+++ b/board/gateworks/gw_ventana/gw_ventana.c
@@ -356,9 +356,14 @@ iomux_v3_cfg_t const ecspi1_pads[] = {
IOMUX_PADS(PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
};
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(3, 19)) : -1;
+}
+
static void setup_spi(void)
{
- gpio_direction_output(CONFIG_SF_DEFAULT_CS, 1);
+ gpio_direction_output(IMX_GPIO_NR(3, 19), 1);
SETUP_IOMUX_PADS(ecspi1_pads);
}
#endif
diff --git a/board/genesi/mx51_efikamx/efikamx.c b/board/genesi/mx51_efikamx/efikamx.c
index 16769e53327edf187cfced3c397d8a9b9e7243d0..137e4ed661030b9ede7f194f2f7f865429ebce1d 100644
--- a/board/genesi/mx51_efikamx/efikamx.c
+++ b/board/genesi/mx51_efikamx/efikamx.c
@@ -152,6 +152,11 @@ static iomux_v3_cfg_t const efikamx_spi_pads[] = {
* PMIC configuration
*/
#ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 1) ? 121 : -1;
+}
+
static void power_init(void)
{
unsigned int val;
diff --git a/board/ttcontrol/vision2/vision2.c b/board/ttcontrol/vision2/vision2.c
index b4d3994158da0d6417e211273ad62ce3cea1c5b9..b5249e74a779a3a1b1f16a9be3a5c9a9c5c32521 100644
--- a/board/ttcontrol/vision2/vision2.c
+++ b/board/ttcontrol/vision2/vision2.c
@@ -144,6 +144,11 @@ static void setup_uart(void)
}
#ifdef CONFIG_MXC_SPI
+int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return (bus == 0 && cs == 1) ? 121 : -1;
+}
+
void spi_io_init(void)
{
static const iomux_v3_cfg_t spi_pads[] = {
diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 2d5f3850da8e95b41f7bcbfb227eb9958c8d15c6..026f680d80d90e60591d04bb3b092058df371883 100644
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -25,6 +25,11 @@ static unsigned long spi_bases[] = {
MXC_SPI_BASE_ADDRESSES
};
+__weak int board_spi_cs_gpio(unsigned bus, unsigned cs)
+{
+ return -1;
+}
+
#define OUT MXC_GPIO_DIRECTION_OUT
#define reg_read readl
@@ -371,31 +376,30 @@ void spi_init(void)
{
}
-static int decode_cs(struct mxc_spi_slave *mxcs, unsigned int cs)
+/*
+ * Some SPI devices require active chip-select over multiple
+ * transactions, we achieve this using a GPIO. Still, the SPI
+ * controller has to be configured to use one of its own chipselects.
+ * To use this feature you have to implement board_spi_cs_gpio() to assign
+ * a gpio value for each cs (-1 if cs doesn't need to use gpio).
+ * You must use some unused on this SPI controller cs between 0 and 3.
+ */
+static int setup_cs_gpio(struct mxc_spi_slave *mxcs,
+ unsigned int bus, unsigned int cs)
{
int ret;
- /*
- * Some SPI devices require active chip-select over multiple
- * transactions, we achieve this using a GPIO. Still, the SPI
- * controller has to be configured to use one of its own chipselects.
- * To use this feature you have to call spi_setup_slave() with
- * cs = internal_cs | (gpio << 8), and you have to use some unused
- * on this SPI controller cs between 0 and 3.
- */
- if (cs > 3) {
- mxcs->gpio = cs >> 8;
- cs &= 3;
- ret = gpio_direction_output(mxcs->gpio, !(mxcs->ss_pol));
- if (ret) {
- printf("mxc_spi: cannot setup gpio %d\n", mxcs->gpio);
- return -EINVAL;
- }
- } else {
- mxcs->gpio = -1;
+ mxcs->gpio = board_spi_cs_gpio(bus, cs);
+ if (mxcs->gpio == -1)
+ return 0;
+
+ ret = gpio_direction_output(mxcs->gpio, !(mxcs->ss_pol));
+ if (ret) {
+ printf("mxc_spi: cannot setup gpio %d\n", mxcs->gpio);
+ return -EINVAL;
}
- return cs;
+ return 0;
}
struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
@@ -415,14 +419,12 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
mxcs->ss_pol = (mode & SPI_CS_HIGH) ? 1 : 0;
- ret = decode_cs(mxcs, cs);
+ ret = setup_cs_gpio(mxcs, bus, cs);
if (ret < 0) {
free(mxcs);
return NULL;
}
- cs = ret;
-
mxcs->base = spi_bases[bus];
ret = spi_cfg_mxc(mxcs, cs, max_hz, mode);
diff --git a/include/configs/embestmx6boards.h b/include/configs/embestmx6boards.h
index a7fd43bc7b8e56a8a8b0c1257a5dc69b1b57858d..185edbe7fea538995c92c090f7bd4af07860fcc3 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 0e5c20097d1cfd0781e68d2883fcac031921664b..620f9501d255741c921d699713fd779a3e9b4774 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 0f2a4ef973fee989c50f4ff1249028e4d31a9f61..fce7ead977a5caebb7c09a098b116a1d66358241 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 e59a3b4b058768d1f641ba4e73f2f85a9e26c575..2d93d6c70076fb2a18423773192afa68936084bc 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 194d7bdb76e3b22935f13cf1bf8068819b243d69..4208ba156331b51219484886f93d2dac8bfeeac5 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 d4b0ac9fdb189150aa42d6c37aa0c3d47502eaeb..39d5bb34bb2995928a5bb686028c3d183218b812 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 6891bf8b153b2da04aac092532aeaf10d9b76409..3f35076f9e6cfc677649b316a1314732492001a7 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