diff options
Diffstat (limited to 'arch/arm/mach-omap2/mux.c')
| -rw-r--r-- | arch/arm/mach-omap2/mux.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 351baab0503a..71cff46a8b71 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -172,8 +172,39 @@ MUX_CFG_24XX("B13_24XX_KBC6", 0x110, 3, 0, 0, 1) }; #ifdef CONFIG_ARCH_OMAP24XX + +#define OMAP24XX_L4_BASE 0x48000000 +#define OMAP24XX_PULL_ENA (1 << 3) +#define OMAP24XX_PULL_UP (1 << 4) + +/* REVISIT: Convert this code to use ctrl_{read,write}_reg */ int __init_or_module omap24xx_cfg_reg(const struct pin_config *cfg) { + u8 reg = 0; + unsigned int warn = 0; + + reg |= cfg->mask & 0x7; + if (cfg->pull_val) + reg |= OMAP24XX_PULL_ENA; + if(cfg->pu_pd_val) + reg |= OMAP24XX_PULL_UP; +#if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS) + { + u8 orig = omap_readb(OMAP24XX_L4_BASE + cfg->mux_reg); + u8 debug = 0; + +#ifdef CONFIG_OMAP_MUX_DEBUG + debug = cfg->debug; +#endif + warn = (orig != reg); + if (debug || warn) + printk("MUX: setup %s (0x%08x): 0x%02x -> 0x%02x\n", + cfg->name, OMAP24XX_L4_BASE + cfg->mux_reg, + orig, reg); + } +#endif + omap_writeb(reg, OMAP24XX_L4_BASE + cfg->mux_reg); + return 0; } #endif |