[U-Boot] [PATCH v5 0/3] i.MX6 SabreSD and SabreAUTO bmode support

[U-Boot] [PATCH v5 0/3] i.MX6 SabreSD and SabreAUTO bmode support

[Otavio Salvador]

This adds the bmode support for i.MX6 SabreSD and SabreAUTO
boards. This allows user to choose the boot mode at runtime making it
easy to boot from USB or other media.

This patchset has been tested in SabreSD but only build tested in
SabreAUTO as I don't have the board for testing.

Changes in v5:
- Improve comment in code for easier understanding (Fabio)
- Fix build failure in SabreAUTO
- Move include of boot_mode.h header to this patch

Changes in v4:
- Fix switch code to proper break (Stefano)

Changes in v3:
- Drop change in bootdelay; the change where done by me while testing
  it and I mistakenly included it.

Changes in v2:
- Improve commit log
- Rework code to use a 'ret' variable (Fabio)

Otavio Salvador (3):
  mx6qsabresd: Document the mapping of USDHC[2-4]
  mx6qsabresd: Fix card detection for invalid card id case
  mx6qsabre{sd,auto}: Add boot mode select

 board/freescale/mx6qsabreauto/mx6qsabreauto.c | 18 +++++++++++
 board/freescale/mx6qsabresd/mx6qsabresd.c     | 43 ++++++++++++++++++++++++---
 include/configs/mx6qsabre_common.h            |  2 ++
 3 files changed, 59 insertions(+), 4 deletions(-)

-- 
1.8.1

[U-Boot] [PATCH v5 1/3] mx6qsabresd: Document the mapping of USDHC[2-4]

[Otavio Salvador]

This documents the SD card identifier so it is easier for user to spot
which card number will be used, if need.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---
Changes in v5:
- Improve comment in code for easier understanding (Fabio)

Changes in v4: None
Changes in v3: None
Changes in v2:
- Improve commit log

 board/freescale/mx6qsabresd/mx6qsabresd.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/board/freescale/mx6qsabresd/mx6qsabresd.c b/board/freescale/mx6qsabresd/mx6qsabresd.c
index 2b3926a..5ebbff3 100644
--- a/board/freescale/mx6qsabresd/mx6qsabresd.c
+++ b/board/freescale/mx6qsabresd/mx6qsabresd.c
@@ -160,6 +160,13 @@ int board_mmc_init(bd_t *bis)
 {
 	int i;
 
+	/*
+	 * According to the board_mmc_init() the following map is done:
+	 * (U-boot device node)    (Physical Port)
+	 * mmc0                    SD2
+	 * mmc1                    SD3
+	 * mmc2                    eMMC
+	 */
 	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 		switch (i) {
 		case 0:
-- 
1.8.1

[U-Boot] [PATCH v5 2/3] mx6qsabresd: Fix card detection for invalid card id case

[Otavio Salvador]

This changes the code so in case an unkown value is passed it will
return as invalid.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---
Changes in v5: None
Changes in v4:
- Fix switch code to proper break (Stefano)

Changes in v3: None
Changes in v2:
- Rework code to use a 'ret' variable (Fabio)

 board/freescale/mx6qsabresd/mx6qsabresd.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/board/freescale/mx6qsabresd/mx6qsabresd.c b/board/freescale/mx6qsabresd/mx6qsabresd.c
index 5ebbff3..d3019e9 100644
--- a/board/freescale/mx6qsabresd/mx6qsabresd.c
+++ b/board/freescale/mx6qsabresd/mx6qsabresd.c
@@ -145,15 +145,21 @@ struct fsl_esdhc_cfg usdhc_cfg[3] = {
 int board_mmc_getcd(struct mmc *mmc)
 {
 	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+	int ret = 0;
 
 	switch (cfg->esdhc_base) {
 	case USDHC2_BASE_ADDR:
-		return !gpio_get_value(USDHC2_CD_GPIO);
+		ret = !gpio_get_value(USDHC2_CD_GPIO);
+		break;
 	case USDHC3_BASE_ADDR:
-		return !gpio_get_value(USDHC3_CD_GPIO);
-	default:
-		return 1; /* eMMC/uSDHC4 is always present */
+		ret = !gpio_get_value(USDHC3_CD_GPIO);
+		break;
+	case USDHC4_BASE_ADDR:
+		ret = 1; /* eMMC/uSDHC4 is always present */
+		break;
 	}
+
+	return ret;
 }
 
 int board_mmc_init(bd_t *bis)
-- 
1.8.1

[U-Boot] [PATCH v5 3/3] mx6qsabre{sd,auto}: Add boot mode select

[Otavio Salvador]

Adds support for 'bmode' command which let user to choose where to
boot from; this allows U-Boot to load system from another storage
without messing with jumpers.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---
Changes in v5:
- Fix build failure in SabreAUTO
- Move include of boot_mode.h header to this patch

Changes in v4: None
Changes in v3:
- Drop change in bootdelay; the change where done by me while testing
  it and I mistakenly included it.

Changes in v2: None

 board/freescale/mx6qsabreauto/mx6qsabreauto.c | 18 ++++++++++++++++++
 board/freescale/mx6qsabresd/mx6qsabresd.c     | 22 ++++++++++++++++++++++
 include/configs/mx6qsabre_common.h            |  2 ++
 3 files changed, 42 insertions(+)

diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
index 91cc007..aec3286 100644
--- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c
+++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c
@@ -26,6 +26,7 @@
 #include <asm/errno.h>
 #include <asm/gpio.h>
 #include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
 #include <mmc.h>
 #include <fsl_esdhc.h>
 #include <miiphy.h>
@@ -216,6 +217,23 @@ int board_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+	/* 4 bit bus width */
+	{"mmc0", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
+	{NULL,   0},
+};
+#endif
+
+int board_late_init(void)
+{
+#ifdef CONFIG_CMD_BMODE
+	add_board_boot_modes(board_boot_modes);
+#endif
+
+	return 0;
+}
+
 int checkboard(void)
 {
 	int rev = mx6sabre_rev();
diff --git a/board/freescale/mx6qsabresd/mx6qsabresd.c b/board/freescale/mx6qsabresd/mx6qsabresd.c
index d3019e9..73ab448 100644
--- a/board/freescale/mx6qsabresd/mx6qsabresd.c
+++ b/board/freescale/mx6qsabresd/mx6qsabresd.c
@@ -26,10 +26,12 @@
 #include <asm/errno.h>
 #include <asm/gpio.h>
 #include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/boot_mode.h>
 #include <mmc.h>
 #include <fsl_esdhc.h>
 #include <miiphy.h>
 #include <netdev.h>
+
 DECLARE_GLOBAL_DATA_PTR;
 
 #define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |            \
@@ -272,6 +274,26 @@ int board_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_CMD_BMODE
+static const struct boot_mode board_boot_modes[] = {
+	/* 4 bit bus width */
+	{"sd2",	 MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
+	{"sd3",	 MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
+	/* 8 bit bus width */
+	{"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
+	{NULL,	 0},
+};
+#endif
+
+int board_late_init(void)
+{
+#ifdef CONFIG_CMD_BMODE
+	add_board_boot_modes(board_boot_modes);
+#endif
+
+	return 0;
+}
+
 int checkboard(void)
 {
 	puts("Board: MX6Q-SabreSD\n");
diff --git a/include/configs/mx6qsabre_common.h b/include/configs/mx6qsabre_common.h
index 9eda9ed..0965b8f 100644
--- a/include/configs/mx6qsabre_common.h
+++ b/include/configs/mx6qsabre_common.h
@@ -36,6 +36,7 @@
 #define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 2 * 1024 * 1024)
 
 #define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_LATE_INIT
 #define CONFIG_MXC_GPIO
 
 #define CONFIG_MXC_UART
@@ -75,6 +76,7 @@
 /* Command definition */
 #include <config_cmd_default.h>
 
+#define CONFIG_CMD_BMODE
 #define CONFIG_CMD_BOOTZ
 #undef CONFIG_CMD_IMLS
 
-- 
1.8.1

[U-Boot] [PATCH v5 3/3] mx6qsabre{sd, auto}: Add boot mode select

[Stefano Babic]

On 16/03/2013 19:05, Otavio Salvador wrote:
> Adds support for 'bmode' command which let user to choose where to
> boot from; this allows U-Boot to load system from another storage
> without messing with jumpers.
> 
> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
> ---


Applied to u-boot-imx, thanks.

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
=====================================================================

[U-Boot] [PATCH v5 1/3] mx6qsabresd: Document the mapping of USDHC[2-4]

[Stefano Babic]

On 16/03/2013 19:05, Otavio Salvador wrote:
> This documents the SD card identifier so it is easier for user to spot
> which card number will be used, if need.
> 
> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
> ---

Applied to u-boot-imx, thanks.

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
=====================================================================

[U-Boot] [PATCH v5 2/3] mx6qsabresd: Fix card detection for invalid card id case

[Stefano Babic]

On 16/03/2013 19:05, Otavio Salvador wrote:
> This changes the code so in case an unkown value is passed it will
> return as invalid.
> 
> Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
> ---


Applied to u-boot-imx, thanks.

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
=====================================================================