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| author | Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> | 2009-10-22 14:47:42 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2009-10-22 14:47:42 -0700 |
| commit | c33da3a80074094303d643a90ef589330b491270 (patch) | |
| tree | 64c8a0d9a56a4590e21641c04deae0b6a66eb8c0 /arch/arm/mach-omap1/board-innovator.c | |
| parent | dcc730dc9d7614fdaf6bce73d6e8ffe47c8820b1 (diff) | |
| download | linux-c33da3a80074094303d643a90ef589330b491270.tar.gz linux-c33da3a80074094303d643a90ef589330b491270.tar.bz2 linux-c33da3a80074094303d643a90ef589330b491270.zip | |
omap1: Fix redundant UARTs pin muxing that can break other hardware support
Commit 15ac408ee5a509053a765b816e9179515329369f removed enabled_uart
and OMAP_TAG_UART. This works for mach-omap2, but causes issues on
mach-omap1 for some boards as the mach-omap1 serial.c was muxing
pins based on the enabled_uart flag for 15xx.
Fix this by muxing pins in board-*.c files for the 15xx boards for
the uart ports that had enabled_uart flag set before the commit
above.
Tested on Amsdtrad Delta only.
Note that in the future we should add support for powering down
the uarts with a timer like mach-omap2/serial.c does. Otherwise
the enabled uarts will be blocking retention-while-idle.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap1/board-innovator.c')
| -rw-r--r-- | arch/arm/mach-omap1/board-innovator.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c index cc2abbb2d0f4..cd6c39514826 100644 --- a/arch/arm/mach-omap1/board-innovator.c +++ b/arch/arm/mach-omap1/board-innovator.c @@ -376,6 +376,26 @@ static void __init innovator_init(void) { #ifdef CONFIG_ARCH_OMAP15XX if (cpu_is_omap1510()) { + unsigned char reg; + + /* mux pins for uarts */ + omap_cfg_reg(UART1_TX); + omap_cfg_reg(UART1_RTS); + omap_cfg_reg(UART2_TX); + omap_cfg_reg(UART2_RTS); + omap_cfg_reg(UART3_TX); + omap_cfg_reg(UART3_RX); + + reg = fpga_read(OMAP1510_FPGA_POWER); + reg |= OMAP1510_FPGA_PCR_COM1_EN; + fpga_write(reg, OMAP1510_FPGA_POWER); + udelay(10); + + reg = fpga_read(OMAP1510_FPGA_POWER); + reg |= OMAP1510_FPGA_PCR_COM2_EN; + fpga_write(reg, OMAP1510_FPGA_POWER); + udelay(10); + platform_add_devices(innovator1510_devices, ARRAY_SIZE(innovator1510_devices)); spi_register_board_info(innovator1510_boardinfo, ARRAY_SIZE(innovator1510_boardinfo)); |