From: Mark A. Greer <[email protected]> Add RTC support for the da830/omap-l137 and da850/omap-l138 SoC's by leveraging existing the rtc-omap driver.
Signed-off-by: Mark A. Greer <[email protected]> --- arch/arm/mach-davinci/board-da830-evm.c | 4 +++ arch/arm/mach-davinci/board-da850-evm.c | 4 +++ arch/arm/mach-davinci/devices-da8xx.c | 35 ++++++++++++++++++++++++++++ arch/arm/mach-davinci/include/mach/da8xx.h | 1 + drivers/rtc/Kconfig | 7 +++-- 5 files changed, 48 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c index dfc4897..fb76721 100644 --- a/arch/arm/mach-davinci/board-da830-evm.c +++ b/arch/arm/mach-davinci/board-da830-evm.c @@ -217,6 +217,10 @@ static __init void da830_evm_init(void) if (ret) pr_warning("da830_evm_init: lcd setup failed: %d\n", ret); #endif + + ret = da8xx_register_rtc(); + if (ret) + pr_warning("da830_evm_init: rtc setup failed: %d\n", ret); } #ifdef CONFIG_SERIAL_8250_CONSOLE diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c index da1a6fb..47619a9 100644 --- a/arch/arm/mach-davinci/board-da850-evm.c +++ b/arch/arm/mach-davinci/board-da850-evm.c @@ -381,6 +381,10 @@ static __init void da850_evm_init(void) if (ret) pr_warning("da850_evm_init: lcdc registration failed: %d\n", ret); + + ret = da8xx_register_rtc(); + if (ret) + pr_warning("da850_evm_init: rtc setup failed: %d\n", ret); } #ifdef CONFIG_SERIAL_8250_CONSOLE diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c index 5595613..dd0ea08 100644 --- a/arch/arm/mach-davinci/devices-da8xx.c +++ b/arch/arm/mach-davinci/devices-da8xx.c @@ -29,6 +29,7 @@ #define DA8XX_TPTC1_BASE 0x01c08400 #define DA8XX_WDOG_BASE 0x01c21000 /* DA8XX_TIMER64P1_BASE */ #define DA8XX_I2C0_BASE 0x01c22000 +#define DA8XX_RTC_BASE 0x01C23000 #define DA8XX_EMAC_CPPI_PORT_BASE 0x01e20000 #define DA8XX_EMAC_CPGMACSS_BASE 0x01e22000 #define DA8XX_EMAC_CPGMAC_BASE 0x01e23000 @@ -453,3 +454,37 @@ int __init da8xx_register_mmcsd0(struct davinci_mmc_config *config) da8xx_mmcsd0_device.dev.platform_data = config; return platform_device_register(&da8xx_mmcsd0_device); } + +static struct resource da8xx_rtc_resources[] = { + { + .start = DA8XX_RTC_BASE, + .end = DA8XX_RTC_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + { /* timer irq */ + .start = IRQ_DA8XX_RTC, + .end = IRQ_DA8XX_RTC, + .flags = IORESOURCE_IRQ, + }, + { /* alarm irq */ + .start = IRQ_DA8XX_RTC, + .end = IRQ_DA8XX_RTC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device da8xx_rtc_device = { + .name = "omap_rtc", + .id = -1, + .num_resources = ARRAY_SIZE(da8xx_rtc_resources), + .resource = da8xx_rtc_resources, +}; + +int da8xx_register_rtc(void) +{ + /* Unlock the rtc's registers */ + __raw_writel(0x83e70b13, IO_ADDRESS(DA8XX_RTC_BASE + 0x6c)); + __raw_writel(0x95a4f1e0, IO_ADDRESS(DA8XX_RTC_BASE + 0x70)); + + return platform_device_register(&da8xx_rtc_device); +} diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h index 375a3f7..a152261 100644 --- a/arch/arm/mach-davinci/include/mach/da8xx.h +++ b/arch/arm/mach-davinci/include/mach/da8xx.h @@ -81,6 +81,7 @@ int da8xx_register_emac(void); int da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata); int da8xx_register_mmcsd0(struct davinci_mmc_config *config); void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata); +int da8xx_register_rtc(void); extern struct platform_device da8xx_serial_device; extern struct emac_platform_data da8xx_emac_pdata; diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index e104be3..b79320d 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -548,10 +548,11 @@ comment "on-CPU RTC drivers" config RTC_DRV_OMAP tristate "TI OMAP1" - depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 + depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX help - Say "yes" here to support the real time clock on TI OMAP1 chips. - This driver can also be built as a module called rtc-omap. + Say "yes" here to support the real time clock on TI OMAP1 and + DA8xx/OMAP-L13x chips. This driver can also be built as a + module called rtc-omap. config RTC_DRV_S3C tristate "Samsung S3C series SoC RTC" -- 1.6.2.5.182.ga808d _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
