From: Holger Brunck holger.brunck@keymile.com
Add wait for the GPIO line connected to mgcoge3ne before starting mgcoge3un. A board specific ethernet present function was added, because on this board ethernet is always present. The BOCO FPGA access was enhanced and changed to use register definitions.
Signed-off-by: Holger Brunck holger.brunck@keymile.com Acked-by: Heiko Schocher hs@denx.de cc: Wolfgang Denk wd@denx.de cc: Detlev Zundel dzu@denx.de cc: Prafulla Wadaskar prafulla@marvell.com cc: Valentin Longchamp valentin.longchamp@keymile.com Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com --- board/keymile/km_arm/km_arm.c | 80 +++++++++++++++++++++++++++++++++------- 1 files changed, 66 insertions(+), 14 deletions(-)
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c index a64cdd8..0b4d75b 100644 --- a/board/keymile/km_arm/km_arm.c +++ b/board/keymile/km_arm/km_arm.c @@ -41,6 +41,16 @@
DECLARE_GLOBAL_DATA_PTR;
+/* + * BOCO FPGA definitions + */ +#define BOCO 0x10 +#define REG_CTRL_H 0x02 +#define MASK_WRL_UNITRUN 0x01 +#define MASK_RBX_PGY_PRESENT 0x40 +#define REG_IRQ_CIRQ2 0x2d +#define MASK_RBI_DEFECT_16 0x01 + /* Multi-Purpose Pins Functionality configuration */ u32 kwmpp_config[] = { MPP0_NF_IO2, @@ -102,43 +112,64 @@ u32 kwmpp_config[] = { 0 };
+#if defined(CONFIG_MGCOGE3UN) +/* + * Wait for startup OK from mgcoge3ne + */ +int startup_allowed(void) +{ + unsigned char buf; + + /* + * Read CIRQ16 bit (bit 0) + */ + if (i2c_read(BOCO, REG_IRQ_CIRQ2, 1, &buf, 1) != 0) + printf("%s: Error reading Boco\n", __func__); + else + if ((buf & MASK_RBI_DEFECT_16) == MASK_RBI_DEFECT_16) + return 1; + return 0; +} + +/* + * mgcoge3un has always ethernet present. Its connected to the 6061 switch + * and provides ICNev and piggy4 connections. + */ +int ethernet_present(void) +{ + return 1; +} +#else int ethernet_present(void) { uchar buf; int ret = 0;
- if (i2c_read(0x10, 2, 1, &buf, 1) != 0) { + if (i2c_read(BOCO, REG_CTRL_H, 1, &buf, 1) != 0) { printf("%s: Error reading Boco\n", __func__); return -1; } - if ((buf & 0x40) == 0x40) + if ((buf & MASK_RBX_PGY_PRESENT) == MASK_RBX_PGY_PRESENT) ret = 1;
return ret; } +#endif
int initialize_unit_leds(void) { /* - * init the unit LEDs - * per default they all are + * Init the unit LEDs per default they all are * ok apart from bootstat - * LED connected through BOCO - * BOCO lies at the address 0x10 - * LEDs are in the block CTRL_H (addr 0x02) - * BOOTSTAT LED is the first 0x01 */ - #define BOCO 0x10 - #define CTRL_H 0x02 - #define APPLEDMASK 0x01 uchar buf;
- if (i2c_read(BOCO, CTRL_H, 1, &buf, 1) != 0) { + if (i2c_read(BOCO, REG_CTRL_H, 1, &buf, 1) != 0) { printf("%s: Error reading Boco\n", __func__); return -1; } - buf |= APPLEDMASK; - if (i2c_write(BOCO, CTRL_H, 1, &buf, 1) != 0) { + buf |= MASK_WRL_UNITRUN; + if (i2c_write(BOCO, REG_CTRL_H, 1, &buf, 1) != 0) { printf("%s: Error writing Boco\n", __func__); return -1; } @@ -156,6 +187,27 @@ int misc_init_r(void) printf("Overwriting MACH_TYPE with %d!!!\n", mach_type); gd->bd->bi_arch_number = mach_type; } +#if defined(CONFIG_MGCOGE3UN) + char *wait_for_ne; + wait_for_ne = getenv("waitforne"); + if (wait_for_ne != NULL) { + if (strcmp(wait_for_ne, "true") == 0) { + int cnt = 0; + puts("NE go: "); + while (startup_allowed() == 0) { + udelay(200000); + cnt++; + if (cnt == 5) + puts("wait\b\b\b\b"); + if (cnt == 10) { + cnt = 0; + puts(" \b\b\b\b"); + } + } + puts("OK\n"); + } + } +#endif
initialize_unit_leds(); set_km_env();