diff options
| author | Eric Benard <eric@eukrea.com> | 2013-04-22 05:54:59 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-05-10 08:25:56 -0400 |
| commit | 81ac7e51ccf2984e9c0964a883d6b7e8fe875aad (patch) | |
| tree | 3b1ba5d0cea874ef4f798090b03d60b77d481f0d /arch/arm | |
| parent | 0b800a6b267de24466ca5a463db6497d7362f128 (diff) | |
da850: provide davinci_enable_uart0
this is needed to bring UART0 out of reset but this function
currently only exists for dm644x/355/365/646x when da850 (at
least am1808 also need it).
Signed-off-by: Eric Bénard <eric@eukrea.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c | 8 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-davinci/hardware.h | 2 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c b/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c index ff2e2e33df..127beb86bc 100644 --- a/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c +++ b/arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c @@ -32,6 +32,14 @@ #include <asm/arch/emif_defs.h> #include <asm/arch/pll_defs.h> +void davinci_enable_uart0(void) +{ + lpsc_on(DAVINCI_LPSC_UART0); + + /* Bringup UART0 out of reset */ + REG(UART0_PWREMU_MGMT) = 0x00006001; +} + #if defined(CONFIG_SYS_DA850_PLL_INIT) void da850_waitloop(unsigned long loopcnt) { diff --git a/arch/arm/include/asm/arch-davinci/hardware.h b/arch/arm/include/asm/arch-davinci/hardware.h index 6eed6c95a7..a9017e4683 100644 --- a/arch/arm/include/asm/arch-davinci/hardware.h +++ b/arch/arm/include/asm/arch-davinci/hardware.h @@ -346,6 +346,8 @@ void davinci_errata_workarounds(void); #define PSC_PSC0_MODULE_ID_CNT 16 #define PSC_PSC1_MODULE_ID_CNT 32 +#define UART0_PWREMU_MGMT (0x01c42030) + struct davinci_psc_regs { dv_reg revid; dv_reg rsvd0[71]; |