omapl138 -- pinmux配置管理
struct mux_config {
const char *name;
const char *mux_reg_name;
const unsigned char mux_reg;
const unsigned char mask_offset;
const unsigned char mask;
const unsigned char mode;
bool debug;
};
/*
* Device specific mux setup
*/
static const struct mux_config da850_pins[] = {
#ifdef CONFIG_DAVINCI_MUX
/* UART0 function */
MUX_CFG(DA850, NUART0_CTS, 3, 24, 15, 2, false)
MUX_CFG(DA850, NUART0_RTS, 3, 28, 15, 2, false)
MUX_CFG(DA850, UART0_RXD, 3, 16, 15, 2, false)
MUX_CFG(DA850, UART0_TXD, 3, 20, 15, 2, false)
/* UART1 function */
MUX_CFG(DA850, UART1_RXD, 4, 24, 15, 2, false)
MUX_CFG(DA850, UART1_TXD, 4, 28, 15, 2, false)
/* UART2 function */
MUX_CFG(DA850, UART2_RXD, 4, 16, 15, 2, false)
MUX_CFG(DA850, UART2_TXD, 4, 20, 15, 2, false)
/* I2C1 function */
MUX_CFG(DA850, I2C1_SCL, 4, 16, 15, 4, false)
MUX_CFG(DA850, I2C1_SDA, 4, 20, 15, 4, false)
/* I2C0 function */
MUX_CFG(DA850, I2C0_SDA, 4, 12, 15, 2, false)
MUX_CFG(DA850, I2C0_SCL, 4, 8, 15, 2, false)
/* EMAC function */
MUX_CFG(DA850, MII_TXEN, 2, 4, 15, 8, false)
MUX_CFG(DA850, MII_TXCLK, 2, 8, 15, 8, false)
MUX_CFG(DA850, MII_COL, 2, 12, 15, 8, false)
MUX_CFG(DA850, MII_TXD_3, 2, 16, 15, 8, false)
MUX_CFG(DA850, MII_TXD_2, 2, 20, 15, 8, false)
MUX_CFG(DA850, MII_TXD_1, 2, 24, 15, 8, false)
MUX_CFG(DA850, MII_TXD_0, 2, 28, 15, 8, false)
MUX_CFG(DA850, MII_RXCLK, 3, 0, 15, 8, false)
MUX_CFG(DA850, MII_RXDV, 3, 4, 15, 8, false)
MUX_CFG(DA850, MII_RXER, 3, 8, 15, 8, false)
MUX_CFG(DA850, MII_CRS, 3, 12, 15, 8, false)
MUX_CFG(DA850, MII_RXD_3, 3, 16, 15, 8, false)
MUX_CFG(DA850, MII_RXD_2, 3, 20, 15, 8, false)
MUX_CFG(DA850, MII_RXD_1, 3, 24, 15, 8, false)
MUX_CFG(DA850, MII_RXD_0, 3, 28, 15, 8, false)
MUX_CFG(DA850, MDIO_CLK, 4, 0, 15, 8, false)
MUX_CFG(DA850, MDIO_D, 4, 4, 15, 8, false)
MUX_CFG(DA850, RMII_TXD_0, 14, 12, 15, 8, false)
MUX_CFG(DA850, RMII_TXD_1, 14, 8, 15, 8, false)
MUX_CFG(DA850, RMII_TXEN, 14, 16, 15, 8, false)
MUX_CFG(DA850, RMII_CRS_DV, 15, 4, 15, 8, false)
MUX_CFG(DA850, RMII_RXD_0, 14, 24, 15, 8, false)
MUX_CFG(DA850, RMII_RXD_1, 14, 20, 15, 8, false)
MUX_CFG(DA850, RMII_RXER, 14, 28, 15, 8, false)
MUX_CFG(DA850, RMII_MHZ_50_CLK, 15, 0, 15, 0, false)
/* McASP function */
MUX_CFG(DA850, ACLKR, 0, 0, 15, 1, false)
MUX_CFG(DA850, ACLKX, 0, 4, 15, 1, false)
MUX_CFG(DA850, AFSR, 0, 8, 15, 1, false)
MUX_CFG(DA850, AFSX, 0, 12, 15, 1, false)
MUX_CFG(DA850, AHCLKR, 0, 16, 15, 1, false)
MUX_CFG(DA850, AHCLKX, 0, 20, 15, 1, false)
MUX_CFG(DA850, AMUTE, 0, 24, 15, 1, false)
MUX_CFG(DA850, AXR_15, 1, 0, 15, 1, false)
MUX_CFG(DA850, AXR_14, 1, 4, 15, 1, false)
MUX_CFG(DA850, AXR_13, 1, 8, 15, 1, false)
MUX_CFG(DA850, AXR_12, 1, 12, 15, 1, false)
MUX_CFG(DA850, AXR_11, 1, 16, 15, 1, false)
MUX_CFG(DA850, AXR_10, 1, 20, 15, 1, false)
MUX_CFG(DA850, AXR_9, 1, 24, 15, 1, false)
MUX_CFG(DA850, AXR_8, 1, 28, 15, 1, false)
MUX_CFG(DA850, AXR_7, 2, 0, 15, 1, false)
MUX_CFG(DA850, AXR_6, 2, 4, 15, 1, false)
MUX_CFG(DA850, AXR_5, 2, 8, 15, 1, false)
MUX_CFG(DA850, AXR_4, 2, 12, 15, 1, false)
MUX_CFG(DA850, AXR_3, 2, 16, 15, 1, false)
MUX_CFG(DA850, AXR_2, 2, 20, 15, 1, false)
MUX_CFG(DA850, AXR_1, 2, 24, 15, 1, false)
MUX_CFG(DA850, AXR_0, 2, 28, 15, 1, false)
/* LCD function */
MUX_CFG(DA850, LCD_D_7, 16, 8, 15, 2, false)
MUX_CFG(DA850, LCD_D_6, 16, 12, 15, 2, false)
MUX_CFG(DA850, LCD_D_5, 16, 16, 15, 2, false)
MUX_CFG(DA850, LCD_D_4, 16, 20, 15, 2, false)
MUX_CFG(DA850, LCD_D_3, 16, 24, 15, 2, false)
MUX_CFG(DA850, LCD_D_2, 16, 28, 15, 2, false)
MUX_CFG(DA850, LCD_D_1, 17, 0, 15, 2, false)
MUX_CFG(DA850, LCD_D_0, 17, 4, 15, 2, false)
MUX_CFG(DA850, LCD_D_15, 17, 8, 15, 2, false)
MUX_CFG(DA850, LCD_D_14, 17, 12, 15, 2, false)
MUX_CFG(DA850, LCD_D_13, 17, 16, 15, 2, false)
MUX_CFG(DA850, LCD_D_12, 17, 20, 15, 2, false)
MUX_CFG(DA850, LCD_D_11, 17, 24, 15, 2, false)
MUX_CFG(DA850, LCD_D_10, 17, 28, 15, 2, false)
MUX_CFG(DA850, LCD_D_9, 18, 0, 15, 2, false)
MUX_CFG(DA850, LCD_D_8, 18, 4, 15, 2, false)
MUX_CFG(DA850, LCD_PCLK, 18, 24, 15, 2, false)
MUX_CFG(DA850, LCD_MCLK, 18, 28, 15, 2, false)
MUX_CFG(DA850, LCD_HSYNC, 19, 0, 15, 2, false)
MUX_CFG(DA850, LCD_VSYNC, 19, 4, 15, 2, false)
MUX_CFG(DA850, NLCD_AC_ENB_CS, 19, 24, 15, 2, false)
/* MMC/SD0 function */
MUX_CFG(DA850, MMCSD0_DAT_0, 10, 8, 15, 2, false)
MUX_CFG(DA850, MMCSD0_DAT_1, 10, 12, 15, 2, false)
MUX_CFG(DA850, MMCSD0_DAT_2, 10, 16, 15, 2, false)
MUX_CFG(DA850, MMCSD0_DAT_3, 10, 20, 15, 2, false)
MUX_CFG(DA850, MMCSD0_CLK, 10, 0, 15, 2, false)
MUX_CFG(DA850, MMCSD0_CMD, 10, 4, 15, 2, false)
/* EMIF2.5/EMIFA function */
MUX_CFG(DA850, EMA_D_7, 9, 0, 15, 1, false)
MUX_CFG(DA850, EMA_D_6, 9, 4, 15, 1, false)
MUX_CFG(DA850, EMA_D_5, 9, 8, 15, 1, false)
MUX_CFG(DA850, EMA_D_4, 9, 12, 15, 1, false)
MUX_CFG(DA850, EMA_D_3, 9, 16, 15, 1, false)
MUX_CFG(DA850, EMA_D_2, 9, 20, 15, 1, false)
MUX_CFG(DA850, EMA_D_1, 9, 24, 15, 1, false)
MUX_CFG(DA850, EMA_D_0, 9, 28, 15, 1, false)
MUX_CFG(DA850, EMA_A_1, 12, 24, 15, 1, false)
MUX_CFG(DA850, EMA_A_2, 12, 20, 15, 1, false)
MUX_CFG(DA850, NEMA_CS_3, 7, 4, 15, 1, false)
MUX_CFG(DA850, NEMA_CS_4, 7, 8, 15, 1, false)
MUX_CFG(DA850, NEMA_WE, 7, 16, 15, 1, false)
MUX_CFG(DA850, NEMA_OE, 7, 20, 15, 1, false)
MUX_CFG(DA850, EMA_A_0, 12, 28, 15, 1, false)
MUX_CFG(DA850, EMA_A_3, 12, 16, 15, 1, false)
MUX_CFG(DA850, EMA_A_4, 12, 12, 15, 1, false)
MUX_CFG(DA850, EMA_A_5, 12, 8, 15, 1, false)
MUX_CFG(DA850, EMA_A_6, 12, 4, 15, 1, false)
MUX_CFG(DA850, EMA_A_7, 12, 0, 15, 1, false)
MUX_CFG(DA850, EMA_A_8, 11, 28, 15, 1, false)
MUX_CFG(DA850, EMA_A_9, 11, 24, 15, 1, false)
MUX_CFG(DA850, EMA_A_10, 11, 20, 15, 1, false)
MUX_CFG(DA850, EMA_A_11, 11, 16, 15, 1, false)
MUX_CFG(DA850, EMA_A_12, 11, 12, 15, 1, false)
MUX_CFG(DA850, EMA_A_13, 11, 8, 15, 1, false)
MUX_CFG(DA850, EMA_A_14, 11, 4, 15, 1, false)
MUX_CFG(DA850, EMA_A_15, 11, 0, 15, 1, false)
MUX_CFG(DA850, EMA_A_16, 10, 28, 15, 1, false)
MUX_CFG(DA850, EMA_A_17, 10, 24, 15, 1, false)
MUX_CFG(DA850, EMA_A_18, 10, 20, 15, 1, false)
MUX_CFG(DA850, EMA_A_19, 10, 16, 15, 1, false)
MUX_CFG(DA850, EMA_A_20, 10, 12, 15, 1, false)
MUX_CFG(DA850, EMA_A_21, 10, 8, 15, 1, false)
MUX_CFG(DA850, EMA_A_22, 10, 4, 15, 1, false)
MUX_CFG(DA850, EMA_A_23, 10, 0, 15, 1, false)
MUX_CFG(DA850, EMA_D_8, 8, 28, 15, 1, false)
MUX_CFG(DA850, EMA_D_9, 8, 24, 15, 1, false)
MUX_CFG(DA850, EMA_D_10, 8, 20, 15, 1, false)
MUX_CFG(DA850, EMA_D_11, 8, 16, 15, 1, false)
MUX_CFG(DA850, EMA_D_12, 8, 12, 15, 1, false)
MUX_CFG(DA850, EMA_D_13, 8, 8, 15, 1, false)
MUX_CFG(DA850, EMA_D_14, 8, 4, 15, 1, false)
MUX_CFG(DA850, EMA_D_15, 8, 0, 15, 1, false)
MUX_CFG(DA850, EMA_BA_1, 5, 24, 15, 1, false)
MUX_CFG(DA850, EMA_CLK, 6, 0, 15, 1, false)
MUX_CFG(DA850, EMA_WAIT_1, 6, 24, 15, 1, false)
MUX_CFG(DA850, NEMA_CS_2, 7, 0, 15, 1, false)
/* SPI1 function */
MUX_CFG(DA850, SPI1_CS_0, 5, 4, 15, 1, false)
MUX_CFG(DA850, SPI1_CLK, 5, 8, 15, 1, false)
MUX_CFG(DA850, SPI1_SOMI, 5, 16, 15, 1, false)
MUX_CFG(DA850, SPI1_SIMO, 5, 20, 15, 1, false)
/* GPIO function */
MUX_CFG(DA850, GPIO2_6, 6, 4, 15, 8, false)
MUX_CFG(DA850, GPIO2_8, 13, 28, 15, 8, false
MUX_CFG(DA850, GPIO2_15, 13, 24, 15, 8, false)
MUX_CFG(DA850, GPIO4_0, 10, 28, 15, 8, false)
MUX_CFG(DA850, GPIO4_1, 10, 24, 15, 8, false)
MUX_CFG(DA850, GPIO2_4, 6, 12, 15, 8, false)
MUX_CFG(DA850, GPIO6_13, 13, 8, 15, 8, false)
MUX_CFG(DA850, GPIO7_4, 17, 20, 15, 8, false)
/* McBSP0 function */
MUX_CFG(DA850, MCBSP0_CLKR, 2, 4, 15, 2, false)
MUX_CFG(DA850, MCBSP0_CLKX, 2, 8, 15, 2, false)
MUX_CFG(DA850, MCBSP0_FSR, 2, 12, 15, 2, false)
MUX_CFG(DA850, MCBSP0_FSX, 2, 16, 15, 2, false)
MUX_CFG(DA850, MCBSP0_DR, 2, 20, 15, 2, false)
MUX_CFG(DA850, MCBSP0_DX, 2, 24, 15, 2, false)
MUX_CFG(DA850, MCBSP0_CLKS, 2, 28, 15, 0, false)
/* McBSP1 function */
MUX_CFG(DA850, MCBSP1_CLKR, 1, 4, 15, 2, false)
MUX_CFG(DA850, MCBSP1_CLKX, 1, 8, 15, 2, false)
MUX_CFG(DA850, MCBSP1_FSR, 1, 12, 15, 2, false)
MUX_CFG(DA850, MCBSP1_FSX, 1, 16, 15, 2, false)
MUX_CFG(DA850, MCBSP1_DR, 1, 20, 15, 2, false)
MUX_CFG(DA850, MCBSP1_DX, 1, 24, 15, 2, false)
MUX_CFG(DA850, MCBSP1_CLKS, 1, 28, 15, 2, false)
#endif
};
const short da850_i2c0_pins[] __initdata = {
DA850_I2C0_SDA, DA850_I2C0_SCL,
-1
};
static struct davinci_soc_info davinci_soc_info_da850 = {
.io_desc = da850_io_desc,
.io_desc_num = ARRAY_SIZE(da850_io_desc),
.ids = da850_ids,
.ids_num = ARRAY_SIZE(da850_ids),
.cpu_clks = da850_clks,
.psc_bases = da850_psc_bases,
.psc_bases_num = ARRAY_SIZE(da850_psc_bases),
.pinmux_pins = da850_pins,
.pinmux_pins_num = ARRAY_SIZE(da850_pins),
.intc_base = (void __iomem *)DA8XX_CP_INTC_VIRT,
.intc_type = DAVINCI_INTC_TYPE_CP_INTC,
.intc_irq_prios = da850_default_priorities,
.intc_irq_num = DA850_N_CP_INTC_IRQ,
.timer_info = &da850_timer_info,
.gpio_base = IO_ADDRESS(DA8XX_GPIO_BASE),
.gpio_num = 144,
.gpio_irq = IRQ_DA8XX_GPIO0,
.serial_dev = &da8xx_serial_device,
.emac_pdata = &da8xx_emac_pdata,
.init_cpufreq_table = da850_init_cpufreq_table,
};
/*
* I/O mapping
*/
#define IO_PHYS 0x01c00000
#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
#define IO_SIZE 0x00400000
#define IO_VIRT (IO_PHYS + IO_OFFSET)
#define io_v2p(va) ((va) - IO_OFFSET)
#define __IO_ADDRESS(x) ((x) + IO_OFFSET)
#define IO_ADDRESS(pa) IOMEM(__IO_ADDRESS(pa))
#define DA8XX_SYSCFG_BASE (IO_PHYS + 0x14000)
#define DA8XX_SYSCFG_VIRT(x) (da8xx_syscfg_base + (x))
void __init da850_init(void)
{
da8xx_syscfg_base = ioremap(DA8XX_SYSCFG_BASE, SZ_4K);
if (WARN(!da8xx_syscfg_base, "Unable to map syscfg module"))
return;
davinci_soc_info_da850.jtag_id_base =
DA8XX_SYSCFG_VIRT(DA8XX_JTAG_ID_REG);
davinci_soc_info_da850.pinmux_base = DA8XX_SYSCFG_VIRT(0x120);
davinci_common_init(&davinci_soc_info_da850);
/*
* Move the clock source of Async3 domain to PLL1 SYSCLK2.
* This helps keeping the peripherals on this domain insulated
* from CPU frequency changes caused by DVFS. The firmware sets
* both PLL0 and PLL1 to the same frequency so, there should not
* be any noticible change even in non-DVFS use cases.
*/
da850_set_async3_src(1);
}
int __init_or_module davinci_cfg_reg(const unsigned long index)
{
cfg = &soc_info->pinmux_pins[index];
/* Update the mux register in question */
if (cfg->mask) {
unsigned tmp1, tmp2;
spin_lock_irqsave(&mux_spin_lock, flags);
reg_orig = __raw_readl(base + cfg->mux_reg);
mask = (cfg->mask << cfg->mask_offset);
tmp1 = reg_orig & mask;
reg = reg_orig & ~mask;
tmp2 = (cfg->mode << cfg->mask_offset);
reg |= tmp2;
if (tmp1 != tmp2)
warn = 1;
__raw_writel(reg, base + cfg->mux_reg);
spin_unlock_irqrestore(&mux_spin_lock, flags);
}
}
int da8xx_pinmux_setup(const short pins[])
{
int i, error = -EINVAL;
if (pins)
for (i = 0; pins[i] >= 0; i++) {
error = davinci_cfg_reg(pins[i]);
if (error)
break;
}
return error;
}
