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-rw-r--r--board/davinci/common/psc.c65
-rw-r--r--board/davinci/common/psc.h4
-rw-r--r--board/davinci/dvevm/dvevm.c35
-rw-r--r--board/davinci/schmoogie/schmoogie.c37
-rw-r--r--board/davinci/sffsdr/sffsdr.c31
-rw-r--r--board/davinci/sonata/sonata.c35
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);
generated by cgit v1.1 at 2024-12-04 00:20:12 +0000