[U-Boot] [PATCH v5 6/8] sunxi: add gmac Ethernet support

Ian Campbell ijc at hellion.org.uk
Mon May 5 12:52:28 CEST 2014


Add support for the GMAC Ethernet controller on Allwinner A20 (sun7i)
processors. Enable for the Cubietruck.

Signed-off-by: Chen-Yu Tsai <wens at csie.org>
Signed-off-by: Jens Kuske <jenskuske at gmail.com>
Signed-off-by: Ian Campbell <ijc at hellion.org.uk>
Reviewed-by: Marek Vasut <marex at denx.de>
---
v5: Based on 3f5ff92b1503 "sunxi: add comments to pll1_para array."
  - No changes required

v4: Based on d9fe0a1e061e "sunxi: mksunxiboot: remove unnecessary casts."
    - Use correct ifdef's in and around cpu_eth_init
    - Log and propagate errors from sunxi_gmac_initialize
    - Move glue from drivers/net/sunxi_gmac.c to board/sunxi/gmac.c
    - Remove SNTP and useless BOOTP config options.

v3: Based on c89867dca2e9 "sunxi: clocks: clock_get_pll5
prototype and coding style".

v2: Based on u-boot-sunxi.git#sunxi d9aa5dd3d15c "sunxi: mmc:
checkpatch whitespace fixes" with v2014.04-rc2 merged in:
    - drop accidentally doubled hunk
    - use gpio setup functions
    - moved before mmc patches

v1: Based on u-boot-sunxi.git#sunxi commit d854c4de2f57 "arm: Handle .gnu.hash
section in ldscripts" vs v2014.01.
---
 arch/arm/cpu/armv7/sunxi/board.c | 23 +++++++++++++++++++++++
 board/sunxi/Makefile             |  1 +
 board/sunxi/gmac.c               | 32 ++++++++++++++++++++++++++++++++
 boards.cfg                       |  2 +-
 include/configs/sunxi-common.h   | 17 +++++++++++++++++
 include/netdev.h                 |  1 +
 6 files changed, 75 insertions(+), 1 deletion(-)
 create mode 100644 board/sunxi/gmac.c

diff --git a/arch/arm/cpu/armv7/sunxi/board.c b/arch/arm/cpu/armv7/sunxi/board.c
index b5c0cb7..49c9448 100644
--- a/arch/arm/cpu/armv7/sunxi/board.c
+++ b/arch/arm/cpu/armv7/sunxi/board.c
@@ -11,6 +11,8 @@
  */
 
 #include <common.h>
+#include <netdev.h>
+#include <miiphy.h>
 #include <serial.h>
 #ifdef CONFIG_SPL_BUILD
 #include <spl.h>
@@ -86,3 +88,24 @@ void enable_caches(void)
 	dcache_enable();
 }
 #endif
+
+#ifdef CONFIG_CMD_NET
+/*
+ * Initializes on-chip ethernet controllers.
+ * to override, implement board_eth_init()
+ */
+int cpu_eth_init(bd_t *bis)
+{
+	int rc;
+
+#ifdef CONFIG_SUNXI_GMAC
+	rc = sunxi_gmac_initialize(bis);
+	if (rc < 0) {
+		printf("sunxi: failed to initialize gmac\n");
+		return rc;
+	}
+#endif
+
+	return 0;
+}
+#endif
diff --git a/board/sunxi/Makefile b/board/sunxi/Makefile
index 18b1e11..cbf8f08 100644
--- a/board/sunxi/Makefile
+++ b/board/sunxi/Makefile
@@ -9,4 +9,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 obj-y	+= board.o
+obj-$(CONFIG_SUNXI_GMAC)	+= gmac.o
 obj-$(CONFIG_CUBIETRUCK)	+= dram_cubietruck.o
diff --git a/board/sunxi/gmac.c b/board/sunxi/gmac.c
new file mode 100644
index 0000000..e48328d
--- /dev/null
+++ b/board/sunxi/gmac.c
@@ -0,0 +1,32 @@
+#include <common.h>
+#include <netdev.h>
+#include <miiphy.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/gpio.h>
+
+int sunxi_gmac_initialize(bd_t *bis)
+{
+	int pin;
+	struct sunxi_ccm_reg *const ccm =
+		(struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
+
+	/* Set up clock gating */
+	setbits_le32(&ccm->ahb_gate1, 0x1 << AHB_GATE_OFFSET_GMAC);
+
+	/* Set MII clock */
+	setbits_le32(&ccm->gmac_clk_cfg, CCM_GMAC_CTRL_TX_CLK_SRC_INT_RGMII |
+		CCM_GMAC_CTRL_GPIT_RGMII);
+
+	/* Configure pin mux settings for GMAC */
+	for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(16); pin++) {
+		/* skip unused pins in RGMII mode */
+		if (pin == SUNXI_GPA(9) || pin == SUNXI_GPA(14))
+			continue;
+		sunxi_gpio_set_cfgpin(pin, SUN7I_GPA0_GMAC);
+		sunxi_gpio_set_drv(pin, 3);
+	}
+
+	return designware_initialize(SUNXI_GMAC_BASE, PHY_INTERFACE_MODE_RGMII);
+}
diff --git a/boards.cfg b/boards.cfg
index 31b02df..b74f8c8 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -371,7 +371,7 @@ Active  arm         armv7          rmobile     renesas         lager
 Active  arm         armv7          s5pc1xx     samsung         goni                s5p_goni                             -                                                                                                                                 Mateusz Zalega <m.zalega at samsung.com>
 Active  arm         armv7          s5pc1xx     samsung         smdkc100            smdkc100                             -                                                                                                                                 Minkyu Kang <mk7.kang at samsung.com>
 Active  arm         armv7          socfpga     altera          socfpga             socfpga_cyclone5                     -                                                                                                                                 -
-Active  arm         armv7          sunxi       -               sunxi               Cubietruck_FEL                       sun7i:CUBIETRUCK,SPL_FEL                                                                                                          -
+Active  arm         armv7          sunxi       -               sunxi               Cubietruck_FEL                       sun7i:CUBIETRUCK,SPL_FEL,SUNXI_GMAC,RGMII                                                                                         -
 Active  arm         armv7          u8500       st-ericsson     snowball            snowball                             -                                                                                                                                 Mathieu Poirier <mathieu.poirier at linaro.org>
 Active  arm         armv7          u8500       st-ericsson     u8500               u8500_href                           -                                                                                                                                 -
 Active  arm         armv7          vf610       freescale       vf610twr            vf610twr                             vf610twr:IMX_CONFIG=board/freescale/vf610twr/imximage.cfg                                                                         Alison Wang <b18965 at freescale.com>
diff --git a/include/configs/sunxi-common.h b/include/configs/sunxi-common.h
index 3f7e314..e844110 100644
--- a/include/configs/sunxi-common.h
+++ b/include/configs/sunxi-common.h
@@ -127,6 +127,23 @@
 
 #define CONFIG_CONS_INDEX              1       /* UART0 */
 
+#ifdef CONFIG_SUNXI_GMAC
+#define CONFIG_DESIGNWARE_ETH		/* GMAC can use designware driver */
+#define CONFIG_DW_AUTONEG
+#define CONFIG_PHY_GIGE			/* GMAC can use gigabit PHY	*/
+#define CONFIG_PHY_ADDR		1
+#define CONFIG_MII			/* MII PHY management		*/
+#define CONFIG_PHYLIB
+#endif
+
+#ifdef CONFIG_CMD_NET
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_DNS
+#define CONFIG_NETCONSOLE
+#define CONFIG_BOOTP_DNS2
+#define CONFIG_BOOTP_SEND_HOSTNAME
+#endif
+
 #if !defined CONFIG_ENV_IS_IN_MMC && \
     !defined CONFIG_ENV_IS_IN_NAND && \
     !defined CONFIG_ENV_IS_IN_FAT && \
diff --git a/include/netdev.h b/include/netdev.h
index 32b5073..fc4a2f8 100644
--- a/include/netdev.h
+++ b/include/netdev.h
@@ -79,6 +79,7 @@ int sh_eth_initialize(bd_t *bis);
 int skge_initialize(bd_t *bis);
 int smc91111_initialize(u8 dev_num, int base_addr);
 int smc911x_initialize(u8 dev_num, int base_addr);
+int sunxi_gmac_initialize(bd_t *bis);
 int sunxi_wemac_initialize(bd_t *bis);
 int tsi108_eth_initialize(bd_t *bis);
 int uec_standard_init(bd_t *bis);
-- 
1.9.0



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