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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>
This commit is contained in:
Eric Benard 2013-04-22 05:54:59 +00:00 committed by Tom Rini
parent 0b800a6b26
commit 81ac7e51cc
2 changed files with 10 additions and 0 deletions
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8
arch/arm/cpu/arm926ejs/davinci/da850_lowlevel.c
View File

@ -32,6 +32,14 @@
#include <asm/arch/emif_defs.h> #include <asm/arch/emif_defs.h>
#include <asm/arch/pll_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) #if defined(CONFIG_SYS_DA850_PLL_INIT)
void da850_waitloop(unsigned long loopcnt) void da850_waitloop(unsigned long loopcnt)
{ {

2
arch/arm/include/asm/arch-davinci/hardware.h
View File

@ -346,6 +346,8 @@ void davinci_errata_workarounds(void);
#define PSC_PSC0_MODULE_ID_CNT 16 #define PSC_PSC0_MODULE_ID_CNT 16
#define PSC_PSC1_MODULE_ID_CNT 32 #define PSC_PSC1_MODULE_ID_CNT 32
#define UART0_PWREMU_MGMT (0x01c42030)
struct davinci_psc_regs { struct davinci_psc_regs {
dv_reg revid; dv_reg revid;
dv_reg rsvd0[71]; dv_reg rsvd0[71];