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sunxi: Add a GMAC Transmit Clock Delay Chain Kconfig option

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And use this to set the GMAC Transmit Clock Delay Chain value on Banana
boards, rather then keying of CONFIG_TARGET_FOO.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2015-01-25 12:10:48 +01:00
parent e1a0888ed2
commit c13f60d92a
6 changed files with 14 additions and 9 deletions
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2
arch/arm/include/asm/arch-sunxi/clock_sun4i.h
View file

@ -305,6 +305,8 @@ struct sunxi_ccm_reg {
#define CCM_GMAC_CTRL_TX_CLK_SRC_INT_RGMII 0x2
#define CCM_GMAC_CTRL_GPIT_MII (0x0 << 2)
#define CCM_GMAC_CTRL_GPIT_RGMII (0x1 << 2)
#define CCM_GMAC_CTRL_RX_CLK_DELAY(x) ((x) << 5)
#define CCM_GMAC_CTRL_TX_CLK_DELAY(x) ((x) << 10)
#define CCM_USB_CTRL_PHY0_RST (0x1 << 0)
#define CCM_USB_CTRL_PHY1_RST (0x1 << 1)

2
arch/arm/include/asm/arch-sunxi/clock_sun6i.h
View file

@ -243,6 +243,8 @@ struct sunxi_ccm_reg {
#define CCM_GMAC_CTRL_TX_CLK_SRC_INT_RGMII 0x2
#define CCM_GMAC_CTRL_GPIT_MII (0x0 << 2)
#define CCM_GMAC_CTRL_GPIT_RGMII (0x1 << 2)
#define CCM_GMAC_CTRL_RX_CLK_DELAY(x) ((x) << 5)
#define CCM_GMAC_CTRL_TX_CLK_DELAY(x) ((x) << 10)
#define MDFS_CLK_DEFAULT 0x81000002 /* PLL6 / 3 */

6
board/sunxi/Kconfig
View file

@ -380,4 +380,10 @@ config USB_KEYBOARD
Say Y here to add support for using a USB keyboard (typically used
in combination with a graphical console).
config GMAC_TX_DELAY
int "GMAC Transmit Clock Delay Chain"
default 0
---help---
Set the GMAC Transmit Clock Delay Chain value.
endif

11
board/sunxi/gmac.c
View file

@ -24,20 +24,13 @@ int sunxi_gmac_initialize(bd_t *bis)
#ifdef CONFIG_RGMII
setbits_le32(&ccm->gmac_clk_cfg, CCM_GMAC_CTRL_TX_CLK_SRC_INT_RGMII |
CCM_GMAC_CTRL_GPIT_RGMII);
setbits_le32(&ccm->gmac_clk_cfg,
CCM_GMAC_CTRL_TX_CLK_DELAY(CONFIG_GMAC_TX_DELAY));
#else
setbits_le32(&ccm->gmac_clk_cfg, CCM_GMAC_CTRL_TX_CLK_SRC_MII |
CCM_GMAC_CTRL_GPIT_MII);
#endif
/*
* In order for the gmac nic to work reliable on the Bananapi, we
* need to set bits 10-12 GTXDC "GMAC Transmit Clock Delay Chain"
* of the GMAC clk register to 3.
*/
#if defined CONFIG_TARGET_BANANAPI || defined CONFIG_TARGET_BANANAPRO
setbits_le32(&ccm->gmac_clk_cfg, 0x3 << 10);
#endif
#ifndef CONFIG_MACH_SUN6I
/* Configure pin mux settings for GMAC */
for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(16); pin++) {

1
configs/Bananapi_defconfig
View file

@ -1,6 +1,7 @@
CONFIG_SPL=y
CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_GMAC,RGMII,MACPWR=SUNXI_GPH(23),AHCI,USB_EHCI"
CONFIG_FDTFILE="sun7i-a20-bananapi.dtb"
CONFIG_GMAC_TX_DELAY=3
+S:CONFIG_ARM=y
+S:CONFIG_ARCH_SUNXI=y
+S:CONFIG_MACH_SUN7I=y

1
configs/Bananapro_defconfig
View file

@ -3,6 +3,7 @@ CONFIG_SYS_EXTRA_OPTIONS="AXP209_POWER,SUNXI_GMAC,RGMII,MACPWR=SUNXI_GPH(23),AHC
CONFIG_FDTFILE="sun7i-a20-bananapro.dtb"
CONFIG_USB1_VBUS_PIN="PH0"
CONFIG_USB2_VBUS_PIN="PH1"
CONFIG_GMAC_TX_DELAY=3
+S:CONFIG_ARM=y
+S:CONFIG_ARCH_SUNXI=y
+S:CONFIG_MACH_SUN7I=y