ARM DaVinci: Add common peripherals and modules enable functions.

Taken all the duplicated code for enabling common modules and apply
software workarounds from the board specific code into common
functions. Also added comments explaining the workarounds
(from TI errata documents) and replaced some numerical bit numbers
with more meaningful defines.

Signed-off-by: Hugo Villeneuve <hugo.villeneuve@lyrtech.com>

1 files changed, 5 insertions, 26 deletions

diff --git a/board/davinci/sffsdr/sffsdr.c b/board/davinci/sffsdr/sffsdr.c
index 9296d7b634..e76f86d08c 100644
--- a/board/davinci/sffsdr/sffsdr.c
+++ b/board/davinci/sffsdr/sffsdr.c
@@ -30,7 +30,6 @@
 #include <common.h>
 #include <i2c.h>
 #include <asm/arch/hardware.h>
-#include <asm/arch/emac_defs.h>
 #include "../common/psc.h"
 #include "../common/misc.h"
 
@@ -51,16 +50,9 @@ int board_init(void)
 	/* address of boot parameters */
 	gd->bd->bi_boot_params = LINUX_BOOT_PARAM_ADDR;
 
-	/* Workaround for TMS320DM6446 errata 1.3.22 */
-	REG(PSC_SILVER_BULLET) = 0;
+	davinci_errata_workarounds();
 
 	/* Power on required peripherals */
-	lpsc_on(DAVINCI_LPSC_EMAC);
-	lpsc_on(DAVINCI_LPSC_EMAC_WRAPPER);
-	lpsc_on(DAVINCI_LPSC_MDIO);
-	lpsc_on(DAVINCI_LPSC_I2C);
-	lpsc_on(DAVINCI_LPSC_UART0);
-	lpsc_on(DAVINCI_LPSC_TIMER1);
 	lpsc_on(DAVINCI_LPSC_GPIO);
 
 #if !defined(CONFIG_SYS_USE_DSPLINK)
@@ -68,24 +60,11 @@ int board_init(void)
 	dsp_on();
 #endif /* CONFIG_SYS_USE_DSPLINK */
 
-	/* Bringup UART0 out of reset */
-	REG(UART0_PWREMU_MGMT) = 0x0000e003;
-
-	/* Enable GIO3.3V cells used for EMAC */
-	REG(VDD3P3V_PWDN) = 0;
-
-	/* Enable UART0 MUX lines */
-	REG(PINMUX1) |= 1;
-
-	/* Enable EMAC and AEMIF pins */
-	REG(PINMUX0) = 0x80000c1f;
-
-	/* Enable I2C pin Mux */
-	REG(PINMUX1) |= (1 << 7);
-
-	/* Set the Bus Priority Register to appropriate value */
-	REG(VBPR) = 0x20;
+	davinci_enable_uart0();
+	davinci_enable_emac();
+	davinci_enable_i2c();
 
+	lpsc_on(DAVINCI_LPSC_TIMER1);
 	timer_init();
 
 	return(0);