[U-Boot] [PATCH v4 6/9] sunxi: add gmac Ethernet support

Ian Campbell
2014-05-01T18:40:49Z

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

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jens Kuske <jenskuske@gmail.com>
Signed-off-by: Ian Campbell <ijc@hellion.org.uk>
---
v4: Based on d9fe0a1e061e "sunxi: mksunxiboot: remove unnecessary casts."

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@samsung.com>
Active arm armv7 s5pc1xx samsung smdkc100 smdkc100 - Minkyu Kang <mk7.kang@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@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@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