Merge branch 'master' of /home/wd/git/u-boot/custodians

6 files changed, 102 insertions, 105 deletions

diff --git a/board/davinci/common/psc.c b/board/davinci/common/psc.c
index d538d51..28e2a4b 100644
--- a/board/davinci/common/psc.c
+++ b/board/davinci/common/psc.c
@@ -26,6 +26,14 @@
 #include <common.h>
 #include <asm/arch/hardware.h>
 
+#define PINMUX0_EMACEN (1 << 31)
+#define PINMUX0_AECS5  (1 << 11)
+#define PINMUX0_AECS4  (1 << 10)
+
+#define PINMUX1_I2C    (1 <<  7)
+#define PINMUX1_UART1  (1 <<  1)
+#define PINMUX1_UART0  (1 <<  0)
+
 /*
  * The DM6446 includes two separate power domains: "Always On" and "DSP". The
  * "Always On" power domain is always on when the chip is on. The "Always On"
@@ -115,3 +123,60 @@ void dsp_on(void)
 	REG(PSC_GBLCTL) &= ~0x1f;
 }
 #endif /* CONFIG_SYS_USE_DSPLINK */
+
+void davinci_enable_uart0(void)
+{
+	lpsc_on(DAVINCI_LPSC_UART0);
+
+	/* Bringup UART0 out of reset */
+	REG(UART0_PWREMU_MGMT) = 0x0000e003;
+
+	/* Enable UART0 MUX lines */
+	REG(PINMUX1) |= PINMUX1_UART0;
+}
+
+#ifdef CONFIG_DRIVER_TI_EMAC
+void davinci_enable_emac(void)
+{
+	lpsc_on(DAVINCI_LPSC_EMAC);
+	lpsc_on(DAVINCI_LPSC_EMAC_WRAPPER);
+	lpsc_on(DAVINCI_LPSC_MDIO);
+
+	/* Enable GIO3.3V cells used for EMAC */
+	REG(VDD3P3V_PWDN) = 0;
+
+	/* Enable EMAC. */
+	REG(PINMUX0) |= PINMUX0_EMACEN;
+}
+#endif
+
+void davinci_enable_i2c(void)
+{
+	lpsc_on(DAVINCI_LPSC_I2C);
+
+	/* Enable I2C pin Mux */
+	REG(PINMUX1) |= PINMUX1_I2C;
+}
+
+void davinci_errata_workarounds(void)
+{
+	/*
+	 * Workaround for TMS320DM6446 errata 1.3.22:
+	 *   PSC: PTSTAT Register Does Not Clear After Warm/Maximum Reset
+	 *   Revision(s) Affected: 1.3 and earlier
+	 */
+	REG(PSC_SILVER_BULLET) = 0;
+
+	/*
+	 * Set the PR_OLD_COUNT bits in the Bus Burst Priority Register (PBBPR)
+	 * as suggested in TMS320DM6446 errata 2.1.2:
+	 *
+	 * On DM6446 Silicon Revision 2.1 and earlier, under certain conditions
+	 * low priority modules can occupy the bus and prevent high priority
+	 * modules like the VPSS from getting the required DDR2 throughput.
+	 * A hex value of 0x20 should provide a good ARM (cache enabled)
+	 * performance and still allow good utilization by the VPSS or other
+	 * modules.
+	 */
+	REG(VBPR) = 0x20;
+}
diff --git a/board/davinci/common/psc.h b/board/davinci/common/psc.h
index 6ab2575..b2dd7b5 100644
--- a/board/davinci/common/psc.h
+++ b/board/davinci/common/psc.h
@@ -24,5 +24,9 @@
 
 void lpsc_on(unsigned int id);
 void dsp_on(void);
+void davinci_enable_uart0(void);
+void davinci_enable_emac(void);
+void davinci_enable_i2c(void);
+void davinci_errata_workarounds(void);
 
 #endif /* __PSC_H */
diff --git a/board/davinci/dvevm/dvevm.c b/board/davinci/dvevm/dvevm.c
index 3fe8858..22308de 100644
--- a/board/davinci/dvevm/dvevm.c
+++ b/board/davinci/dvevm/dvevm.c
@@ -27,7 +27,6 @@
 #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"
 
@@ -41,16 +40,13 @@ 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;
+	/* 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);
 	lpsc_on(DAVINCI_LPSC_USB);
 
@@ -59,24 +55,11 @@ 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);
diff --git a/board/davinci/schmoogie/schmoogie.c b/board/davinci/schmoogie/schmoogie.c
index 3504a2e..433769a 100644
--- a/board/davinci/schmoogie/schmoogie.c
+++ b/board/davinci/schmoogie/schmoogie.c
@@ -27,7 +27,6 @@
 #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"
 
@@ -41,16 +40,13 @@ 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;
+	/* 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)
@@ -58,24 +54,11 @@ 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);
@@ -87,7 +70,7 @@ int misc_init_r(void)
 	int		i = 0;
 
 	/* Set serial number from UID chip */
-	u_int8_t	crc_tbl[256] = {
+	const u_int8_t	crc_tbl[256] = {
 			0x00, 0x5e, 0xbc, 0xe2, 0x61, 0x3f, 0xdd, 0x83,
 			0xc2, 0x9c, 0x7e, 0x20, 0xa3, 0xfd, 0x1f, 0x41,
 			0x9d, 0xc3, 0x21, 0x7f, 0xfc, 0xa2, 0x40, 0x1e,
diff --git a/board/davinci/sffsdr/sffsdr.c b/board/davinci/sffsdr/sffsdr.c
index 9296d7b..e76f86d 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);
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 @@ 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;
+	/* 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 @@ 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);