From 20d500d531a6b971ce6cc1bf191cb0092cdc0afc Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Tue, 23 Oct 2007 10:17:42 +0200 Subject: [PATCH 1/2] ppc4xx: lwmon5: Some further GPIO config changes Signed-off-by: Stefan Roese --- include/configs/lwmon5.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/configs/lwmon5.h b/include/configs/lwmon5.h index 00c34d5d7b..52deab43f1 100644 --- a/include/configs/lwmon5.h +++ b/include/configs/lwmon5.h @@ -432,7 +432,7 @@ {GPIO0_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_0}, /* GPIO12 */ \ {GPIO0_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_0}, /* GPIO13 */ \ {GPIO0_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_1}, /* GPIO14 */ \ -{GPIO0_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_0}, /* GPIO15 */ \ +{GPIO0_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_1}, /* GPIO15 */ \ {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO16 GMCTxD(4) */ \ {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO17 GMCTxD(5) */ \ {GPIO0_BASE, GPIO_OUT, GPIO_ALT1, GPIO_OUT_0}, /* GPIO18 GMCTxD(6) */ \ @@ -473,7 +473,7 @@ {GPIO1_BASE, GPIO_IN, GPIO_SEL , GPIO_OUT_0}, /* GPIO50 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_IN , GPIO_SEL , GPIO_OUT_0}, /* GPIO51 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_IN , GPIO_SEL , GPIO_OUT_0}, /* GPIO52 Unselect via TraceSelect Bit */ \ -{GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_1}, /* GPIO53 Unselect via TraceSelect Bit */ \ +{GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_0}, /* GPIO53 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_0}, /* GPIO54 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_1}, /* GPIO55 Unselect via TraceSelect Bit */ \ {GPIO1_BASE, GPIO_OUT, GPIO_SEL , GPIO_OUT_0}, /* GPIO56 Unselect via TraceSelect Bit */ \ From 54fd6c93c28a0a45352fff5dd92673401ff563f2 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Tue, 13 Nov 2007 08:18:20 +0100 Subject: [PATCH 2/2] ppc4xx: lwmon5: Change PHY reset sequence for PHY MDIO address latching Signed-off-by: Stefan Roese --- board/lwmon5/lwmon5.c | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/board/lwmon5/lwmon5.c b/board/lwmon5/lwmon5.c index 77f998971a..9b24a7e55e 100644 --- a/board/lwmon5/lwmon5.c +++ b/board/lwmon5/lwmon5.c @@ -96,6 +96,23 @@ int board_early_init_f(void) gpio_write_bit(CFG_GPIO_FLASH_WP, 1); + /* + * Reset PHY's: + * The PHY's need a 2nd reset pulse, since the MDIO address is latched + * upon reset, and with the first reset upon powerup, the addresses are + * not latched reliable, since the IRQ line is multiplexed with an + * MDIO address. A 2nd reset at this time will make sure, that the + * correct address is latched. + */ + gpio_write_bit(CFG_GPIO_PHY0_RST, 1); + gpio_write_bit(CFG_GPIO_PHY1_RST, 1); + udelay(1000); + gpio_write_bit(CFG_GPIO_PHY0_RST, 0); + gpio_write_bit(CFG_GPIO_PHY1_RST, 0); + udelay(1000); + gpio_write_bit(CFG_GPIO_PHY0_RST, 1); + gpio_write_bit(CFG_GPIO_PHY1_RST, 1); + return 0; } @@ -230,15 +247,6 @@ int misc_init_r(void) /* Write lime controller memory parameters */ out_be32((void *)CFG_LIME_MMR, CFG_LIME_MMR_VALUE); - /* - * Reset PHY's - */ - gpio_write_bit(CFG_GPIO_PHY0_RST, 0); - gpio_write_bit(CFG_GPIO_PHY1_RST, 0); - udelay(100); - gpio_write_bit(CFG_GPIO_PHY0_RST, 1); - gpio_write_bit(CFG_GPIO_PHY1_RST, 1); - /* * Init display controller */