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>
diff --git a/board/davinci/sonata/sonata.c b/board/davinci/sonata/sonata.c
index 6de9356..d56b443 100644
--- a/board/davinci/sonata/sonata.c
+++ b/board/davinci/sonata/sonata.c
@@ -26,7 +26,6 @@
#include <common.h>
#include <asm/arch/hardware.h>
-#include <asm/arch/emac_defs.h>
#include "../common/psc.h"
#include "../common/misc.h"
@@ -40,16 +39,13 @@
/* 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;
+ /* Configure AEMIF pins (although this should be configured at boot time
+ * with pull-up/pull-down resistors) */
+ REG(PINMUX0) = 0x00000c1f;
+
+ 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)
@@ -57,24 +53,11 @@
dsp_on();
#endif /* CONFIG_SYS_USE_DSPLINK */
- /* Bringup UART0 out of reset */
- REG(UART0_PWREMU_MGMT) = 0x0000e003;
+ davinci_enable_uart0();
+ davinci_enable_emac();
+ davinci_enable_i2c();
- /* 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;
-
+ lpsc_on(DAVINCI_LPSC_TIMER1);
timer_init();
return(0);