diff options
| author | Mark A. Greer <mgreer@mvista.com> | 2009-09-16 05:15:54 +0400 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-11-25 21:21:23 +0300 |
| commit | c51df70b1e14220c8fc0799f6c27b9362d9424d0 (patch) | |
| tree | 3de90c9e947add1c34a986b78a2cd269976b51a9 /arch/arm/mach-davinci | |
| parent | 13e1f0440e7892fa7041fc855d8eeffc5d6aa21a (diff) | |
| download | linux-c51df70b1e14220c8fc0799f6c27b9362d9424d0.tar.xz | |
davinci: Add RTC support for DA8xx/OMAP-L13x SoC's
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 <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-davinci')
| -rw-r--r-- | arch/arm/mach-davinci/board-da830-evm.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/board-da850-evm.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/devices-da8xx.c | 35 | ||||
| -rw-r--r-- | arch/arm/mach-davinci/include/mach/da8xx.h | 1 |
4 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c index fb941eb1f4da..20100370e2e6 100644 --- a/arch/arm/mach-davinci/board-da830-evm.c +++ b/arch/arm/mach-davinci/board-da830-evm.c @@ -228,6 +228,10 @@ 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 da1a6fba28c1..47619a98b562 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 55956135cdf4..dd0ea08bc324 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 375a3f7af03d..a152261c1951 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; |