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PISMO_xx macros were used to define 'Platform Independent Storage MOdule'
related GPMC configurations. This patch
- Replaces these OMAP3 specific macros with generic CONFIG_xx macros as provided
by current u-boot infrastructure.
- Removes unused redundant macros, which are no longer required after
merging of common platform code in following commit
commit a0a37183bd75e74608bc78c8d0e2a34454f95a91
ARM: omap: merge GPMC initialization code for all platform
+-----------------+-----------------------------------------------------------+
| Macro | Reason for removal |
+-----------------+-----------------------------------------------------------+
| PISMO1_NOR_BASE | duplicate of CONFIG_SYS_FLASH_BASE |
+-----------------+-----------------------------------------------------------+
| PISMO1_NAND_BASE| duplicate of CONFIG_SYS_NAND_BASE |
+-----------------+-----------------------------------------------------------+
| PISMO1_ONEN_BASE| duplicate of CONFIG_SYS_ONENAND_BASE |
+-----------------+-----------------------------------------------------------+
| PISMO1_NAND_SIZE| GPMC accesses NAND device via I/O mapped registers so |
| | configuring GPMC chip-select for smallest allowable |
| | segment (GPMC_SIZE_16M) is enough. |
+-----------------+-----------------------------------------------------------+
| PISMO1_ONEN_SIZE| OneNAND uses a fixed GPMC chip-select address-space of |
| | 128MB (GPMC_SIZE_128M) |
+-----------------+-----------------------------------------------------------+
+-----------------+-----------------------------------------------------------+
| PISMO1_NOR | Unused Macros |
| PISMO1_NAND | |
| PISMO2_CS0 | |
| PISMO2_CS1 | |
| PISMO1_ONENAND | |
| PISMO2_NAND_CS0 | |
| PISMO2_NAND_CS1 | |
| PISMO1_NOR_BASE | |
| PISMO1_NAND_BASE| |
| PISMO2_CS0_BASE | |
+-----------------+-----------------------------------------------------------+
Signed-off-by: Pekon Gupta <pekon@ti.com>
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Use generic board setup functions by defining
CONFIG_SYS_GENERIC_BOARD.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@ti.com>
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GPMC_NAND_ECC_LP_x16_LAYOUT
OMAP3 used GPMC_NAND_ECC_LP_x8_LAYOUT and GPMC_NAND_ECC_LP_x16_LAYOUT macros
to configure GPMC controller for x7 or x8 bit device connected to its interface.
Now this information is encoded in CONFIG_SYS_NAND_DEVICE_WIDTH macro, so above
macros can be completely removed.
Signed-off-by: Pekon Gupta <pekon@ti.com>
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bus-width
GPMC controller needs to be configured based on bus-width of the NAND device
connected to it. Also, dynamic detection of NAND bus-width from on-chip ONFI
parameters is not possible in following situations:
SPL: SPL NAND drivers does not support ONFI parameter reading.
U-boot: GPMC controller iniitalization is done in omap_gpmc.c:board_nand_init()
which is called before probing for devices, hence any ONFI parameter
information is not available during GPMC initialization.
Thus, OMAP NAND driver expected board developers to explicitely write GPMC
configurations specific to NAND device attached on board in board files itself.
But this was troublesome for board manufacturers as they need to dive into
lengthy platform & SoC documents to find details of GPMC registers and
appropriate configurations to get NAND device working.
This patch instead adds existing CONFIG_SYS_NAND_BUSWIDTH_16BIT to board config
hich indicates that connected NAND device has x16 bus-width. And then based on
this config GPMC driver itself initializes itself based on NAND bus-width. This
keeps board developers free from knowing GPMC controller specific internals.
Signed-off-by: Pekon Gupta <pekon@ti.com>
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Patch f33b9bd3
[arm: omap3: Enable clocks for peripherals only if they are used]
breaks SPL booting on tao3530. Since some gpio input's are
read to detect the board revision. But with this patch above, the
clocks to the GPIO subsystems are not enabled per default any more.
The GPIO banks need to be configured specifically now.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
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The memory size is autodetected and is passed to the Linux kernel
either via ATAGs or device-tree (dtb). So there is no need to
pass it via the bootargs.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Thorsten Eisbein <thorsten.eisbein@head-acoustics.de>
Cc: Tom Rini <trini@ti.com>
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Add SPL support for the Technexion TAO3530 SOM to replace
x-loader. Tested with the Thunder baseboard. Currently this is
only tested with the TAO3530 SOM revision (Ax/Bx).
Tested by booting via MMC and NAND.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Tapani Utriainen <tapani@technexion.com>
Cc: Thorsten Eisbein <thorsten.eisbein@head-acoustics.de>
Cc: Tom Rini <trini@ti.com>
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Add support for TechNexion TAO3530 SoM
This patch has been posted quite a long time ago. I ported it to
the latest mainline U-Boot version. With some additional cleanup
and enhancements.
Signed-off-by: Tapani Utriainen <tapani@technexion.com>
CC: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Thorsten Eisbein <thorsten.eisbein@head-acoustics.de>
Cc: Tom Rini <trini@ti.com>
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