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| author | Stefan Agner <stefan.agner@toradex.com> | 2016-12-27 17:01:42 +0100 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2017-01-27 10:40:16 +0100 |
| commit | ac0a93fd21b815166c54b991659377f951d4d203 (patch) | |
| tree | cce136945672d07791387a1f6885388ac4b1ba34 /arch/arm/imx-common | |
| parent | 1c3e62d690a3093d418dac267ae78b0fc0c35274 (diff) | |
| download | u-boot-imx-ac0a93fd21b815166c54b991659377f951d4d203.zip u-boot-imx-ac0a93fd21b815166c54b991659377f951d4d203.tar.gz u-boot-imx-ac0a93fd21b815166c54b991659377f951d4d203.tar.bz2 | |
imx_common: check for bmode Serial Downloader
Before commit 81c4eccb55cc ("imx: mx6: fix USB bmode to use
reserved value") a non-reserved value has been used to trigger
Serial Downloader using bmode, which translated to a GPR9 value
of 0x10. However, on some boards the non-reserved value lead to
unreliable bmode command. With the above mentioned commit, U-boot
switched to use [7:4] b0001, which translates to GPR9 0x10 for
Serial Downloader mode. Check for the new value and classify it
as Serial Downloader mode.
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
CC: Stefano Babic <sbabic@denx.de>
CC: Tim Harvey <tharvey@gateworks.com>
CC: Fabio Estevam <Fabio.Estevam@freescale.com>
CC: Eric Nelson <eric.nelson@boundarydevices.com>
Diffstat (limited to 'arch/arm/imx-common')
| -rw-r--r-- | arch/arm/imx-common/spl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/imx-common/spl.c b/arch/arm/imx-common/spl.c index 60c4adf..46325ec 100644 --- a/arch/arm/imx-common/spl.c +++ b/arch/arm/imx-common/spl.c @@ -27,8 +27,7 @@ u32 spl_boot_device(void) * Check for BMODE if serial downloader is enabled * BOOT_MODE - see IMX6DQRM Table 8-1 */ - if ((((bmode >> 24) & 0x03) == 0x01) || /* Serial Downloader */ - (gpr10_boot && (reg == 1))) + if (((bmode >> 24) & 0x03) == 0x01) /* Serial Downloader */ return BOOT_DEVICE_UART; /* BOOT_CFG1[7:4] - see IMX6DQRM Table 8-8 */ switch ((reg & 0x000000FF) >> 4) { @@ -40,6 +39,9 @@ u32 spl_boot_device(void) else return BOOT_DEVICE_NOR; break; + /* Reserved: Used to force Serial Downloader */ + case 0x1: + return BOOT_DEVICE_UART; /* SATA: See 8.5.4, Table 8-20 */ case 0x2: return BOOT_DEVICE_SATA; |