diff options
| author | Bruno Randolf <randolf.bruno@googlemail.com> | 2010-07-12 00:40:38 +0900 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-08-05 13:26:05 +0100 |
| commit | b3b3c176d9150af542d9ba5e5b292d233883ff85 (patch) | |
| tree | 073dba3fa8518483c1eba7fc07cf7c1baf57ecef /arch/mips/alchemy/mtx-1 | |
| parent | f5c1ca77a3b2f9b424c4f39bd71143d0ac308924 (diff) | |
MIPS: MTX-1: cleanup and comments
Add some comments about mtx1_pci_idsel() and remove a dead block of old code.
Signed-off-by: Bruno Randolf <br1@einfach.org>
To: linux-mips@linux-mips.org
To: manuel.lauss@googlemail.com
Cc: florian@openwrt.org
Patchwork: https://patchwork.linux-mips.org/patch/1449/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/alchemy/mtx-1')
| -rw-r--r-- | arch/mips/alchemy/mtx-1/board_setup.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/arch/mips/alchemy/mtx-1/board_setup.c b/arch/mips/alchemy/mtx-1/board_setup.c index def1a75d756..ff3697387b8 100644 --- a/arch/mips/alchemy/mtx-1/board_setup.c +++ b/arch/mips/alchemy/mtx-1/board_setup.c @@ -108,14 +108,10 @@ void __init board_setup(void) int mtx1_pci_idsel(unsigned int devsel, int assert) { -#define MTX_IDSEL_ONLY_0_AND_3 0 -#if MTX_IDSEL_ONLY_0_AND_3 - if (devsel != 0 && devsel != 3) { - printk(KERN_ERR "*** not 0 or 3\n"); - return 0; - } -#endif - + /* This function is only necessary to support a proprietary Cardbus + * adapter on the mtx-1 "singleboard" variant. It triggers a custom + * logic chip connected to EXT_IO3 (GPIO1) to suppress IDSEL signals. + */ if (assert && devsel != 0) /* Suppress signal to Cardbus */ alchemy_gpio_set_value(1, 0); /* set EXT_IO3 OFF */ |