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| author | Ye.Li <B37916@freescale.com> | 2014-06-12 19:34:18 +0800 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2017-04-05 14:04:31 +0800 |
| commit | 50b358a7eb30f6299923e8f35d10b77485c87472 (patch) | |
| tree | cb31f7ab417173c8d6bbc4993739bad76f6d9cc1 /arch | |
| parent | 0a48932f375a969e6f7e72d171522146981b2135 (diff) | |
| download | u-boot-imx-50b358a7eb30f6299923e8f35d10b77485c87472.zip u-boot-imx-50b358a7eb30f6299923e8f35d10b77485c87472.tar.gz u-boot-imx-50b358a7eb30f6299923e8f35d10b77485c87472.tar.bz2 | |
ENGR00315894-77 mx6 soc: Add vadc power up/down function
Add vadc power up/down function.
Signed-off-by: Sandor Yu <R01008@freescale.com>
Signed-off-by: Ye.Li <B37916@freescale.com>
(cherry picked from commit 96d990ef754a879f6ca9da4adf6e0be3d21cdc51)
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
(cherry picked from commit 01b88201aa86bef26a4254ac43aff90e99fd2c06)
(cherry picked from commit d50b53f138dd3b4c463c80ac8e14f41ac0fdd415)
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 46 | ||||
| -rw-r--r-- | arch/arm/include/asm/imx-common/sys_proto.h | 3 |
2 files changed, 49 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index dd94797..8f7d1c0 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -356,6 +356,52 @@ static void set_preclk_from_osc(void) } #endif +#ifdef CONFIG_MX6SX +void vadc_power_up(void) +{ + struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; + u32 val; + + /* csi0 */ + val = readl(&iomux->gpr[5]); + val &= ~IMX6SX_GPR5_CSI1_MUX_CTRL_MASK, + val |= IMX6SX_GPR5_CSI1_MUX_CTRL_CVD; + writel(val, &iomux->gpr[5]); + + /* Power on vadc analog + * Power down vadc ext power */ + val = readl(GPC_BASE_ADDR + 0); + val &= ~0x60000; + writel(val, GPC_BASE_ADDR + 0); + + /* software reset afe */ + val = readl(&iomux->gpr[1]); + writel(val | 0x80000, &iomux->gpr[1]); + + udelay(10*1000); + + /* Release reset bit */ + writel(val & ~0x80000, &iomux->gpr[1]); + + /* Power on vadc ext power */ + val = readl(GPC_BASE_ADDR + 0); + val |= 0x40000; + writel(val, GPC_BASE_ADDR + 0); +} + +void vadc_power_down(void) +{ + u32 val; + + /* Power down vadc ext power + * Power off vadc analog */ + val = readl(GPC_BASE_ADDR + 0); + val &= ~0x40000; + val |= 0x20000; + writel(val, GPC_BASE_ADDR + 0); +} +#endif + int arch_cpu_init(void) { init_aips(); diff --git a/arch/arm/include/asm/imx-common/sys_proto.h b/arch/arm/include/asm/imx-common/sys_proto.h index c58e3b1..3a58a25 100644 --- a/arch/arm/include/asm/imx-common/sys_proto.h +++ b/arch/arm/include/asm/imx-common/sys_proto.h @@ -69,4 +69,7 @@ int mxs_wait_mask_clr(struct mxs_register_32 *reg, u32 mask, u32 timeout); int mmc_get_env_dev(void); void board_late_mmc_env_init(void); + +void vadc_power_up(void); +void vadc_power_down(void); #endif |