[U-Boot] [PATCH 2/2] TI: add tnetv107x evm board support for cpsw

Cyril Chemparathy
2010-08-04T01:33:53Z

This patch adds the necessary board-level hookups to get the CPSW device
working on tnetv107x evm boards.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
---
board/ti/tnetv107xevm/sdb_board.c | 155 +++++++++++++++++++++++++++++++++++++
include/configs/tnetv107x_evm.h | 16 ++++
2 files changed, 171 insertions(+), 0 deletions(-)

diff --git a/board/ti/tnetv107xevm/sdb_board.c b/board/ti/tnetv107xevm/sdb_board.c
index 3ed1cfd..a7effd0 100644
--- a/board/ti/tnetv107xevm/sdb_board.c
+++ b/board/ti/tnetv107xevm/sdb_board.c
@@ -21,6 +21,7 @@

#include <common.h>
#include <miiphy.h>
+#include <netdev.h>
#include <linux/mtd/nand.h>
#include <asm/arch/hardware.h>
#include <asm/arch/clock.h>
@@ -139,6 +140,160 @@ int dram_init(void)
return 0;
}

+#ifdef CONFIG_DRIVER_TI_CPSW
+
+#define PHY_PAGE 22
+#define PHY_MSCR 21
+#define PHY_CSCR 16
+#define PHY_PAGE_MSCR 2
+#define PHY_PAGE_DEFAULT 0
+
+static void phy_init(char *name, int addr)
+{
+ unsigned short reg;
+
+ /* Program RXID and TXID */
+ if (miiphy_write(name, addr, PHY_PAGE, PHY_PAGE_MSCR) != 0) {
+ printf("failed to select mscr page\n");
+ return;
+ }
+
+ if (miiphy_read(name, addr, PHY_MSCR, &reg) != 0) {
+ printf("failed to read mscr\n");
+ return;
+ }
+
+ reg |= 0x3 << 4; /* RXID and TXID */
+
+ if (miiphy_write(name, addr, PHY_MSCR, reg) != 0) {
+ printf("failed to write mscr\n");
+ return;
+ }
+
+ /* Program AutoCross */
+ if (miiphy_write(name, addr, PHY_PAGE, PHY_PAGE_DEFAULT) != 0) {
+ printf("failed to select cscr page\n");
+ return;
+ }
+
+ reg = 0x0060;
+ if (miiphy_write(name, addr, PHY_CSCR, reg) != 0) {
+ printf("failed to write cscr\n");
+ return;
+ }
+
+ /* Enable Autonegotiation */
+ if (miiphy_read(name, addr, PHY_BMCR, &reg) != 0) {
+ printf("failed to read bmcr\n");
+ return;
+ }
+
+ reg |= PHY_BMCR_AUTON;
+
+ if (miiphy_write(name, addr, PHY_BMCR, reg) != 0) {
+ printf("failed to write bmcr\n");
+ return;
+ }
+
+ /* Setup Advertisement */
+ if (miiphy_read(name, addr, PHY_ANAR, &reg) != 0) {
+ printf("failed to read anar\n");
+ return;
+ }
+
+ reg |= (0x1f << 5);
+
+ if (miiphy_write(name, addr, PHY_ANAR, reg) != 0) {
+ printf("failed to write anar\n");
+ return;
+ }
+
+ /* PHY Soft Reset */
+ if (miiphy_reset(name, addr) != 0) {
+ printf("failed to soft-reset phy\n");
+ return;
+ }
+}
+
+static void cpsw_control(int enabled)
+{
+ u32 vtp0_regs = TNETV107X_VTP_CNTRL_0;
+ u32 vtp1_regs = TNETV107X_VTP_CNTRL_1;
+
+
+ if (!enabled) {
+ clk_disable(TNETV107X_LPSC_ETHSS_RGMII);
+ clk_disable(TNETV107X_LPSC_ETHSS);
+ return;
+ }
+
+ clk_enable(TNETV107X_LPSC_ETHSS);
+ clk_enable(TNETV107X_LPSC_ETHSS_RGMII);
+
+ /*
+ * This piece of hardware is horribly mangled. For one, port
+ * 0 and port 1 configurations are strangely mixed up in the
+ * register space, i.e., writing to port 0 registers affects
+ * port 1 as well. Second, for some other equally mysterious
+ * reason, port 1 MUST be configured before port 0.
+ */
+ __raw_writel(0x00000000, vtp1_regs + 0x04); /* single mode */
+ __raw_writel(0x000f0000, vtp1_regs + 0x10); /* slew slowest */
+ __raw_writel(0x00000002, vtp1_regs + 0x14); /* start */
+
+ __raw_writel(0x00000000, vtp0_regs + 0x04); /* single mode */
+ __raw_writel(0x000f0000, vtp0_regs + 0x10); /* slew slowest */
+ __raw_writel(0x00000002, vtp0_regs + 0x14); /* start */
+}
+
+static struct cpsw_slave_data cpsw_slaves[] = {
+ {
+ .slave_reg_ofs = 0x14,
+ .sliver_reg_ofs = 0x80,
+ .phy_id = 0,
+ },
+ {
+ .slave_reg_ofs = 0x34,
+ .sliver_reg_ofs = 0xc0,
+ .phy_id = 1,
+ },
+};
+
+static struct cpsw_platform_data cpsw_data = {
+ .mdio_base = TNETV107X_MDIO_BASE,
+ .cpsw_base = TNETV107X_CPSW_BASE,
+ .mdio_div = 0xff,
+ .channels = 8,
+ .cpdma_reg_ofs = 0x100,
+ .slaves = 2,
+ .slave_data = cpsw_slaves,
+ .ale_reg_ofs = 0x500,
+ .ale_entries = 1024,
+ .host_port_reg_ofs = 0x54,
+ .hw_stats_reg_ofs = 0x400,
+ .mac_control = (1 << 18) | /* IFCTLA */
+ (1 << 15) | /* EXTEN */
+ (1 << 5) | /* MIIEN */
+ (1 << 4) | /* TXFLOWEN */
+ (1 << 3), /* RXFLOWEN */
+ .control = cpsw_control,
+ .phy_init = phy_init,
+};
+
+int board_eth_init(bd_t *bis)
+{
+ u32 latch = TNETV107X_ASYNC_EMIF_DATA_CE3_BASE;
+
+ clk_enable(TNETV107X_LPSC_MDIO);
+ __raw_writel(0x00000000, latch);
+ udelay(1000);
+ __raw_writel(0xffffffff, latch);
+ udelay(1000);
+
+ return cpsw_register(&cpsw_data);
+}
+#endif
+
#ifdef CONFIG_NAND_DAVINCI
int board_nand_init(struct nand_chip *nand)
{
diff --git a/include/configs/tnetv107x_evm.h b/include/configs/tnetv107x_evm.h
index 454e9b2..d3b509b 100644
--- a/include/configs/tnetv107x_evm.h
+++ b/include/configs/tnetv107x_evm.h
@@ -68,6 +68,17 @@
#define CONFIG_BAUDRATE 115200
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }

+/* Network Configuration */
+#define CONFIG_DRIVER_TI_CPSW
+#define CONFIG_MII
+#define CONFIG_BOOTP_DEFAULT
+#define CONFIG_BOOTP_DNS
+#define CONFIG_BOOTP_DNS2
+#define CONFIG_BOOTP_SEND_HOSTNAME
+#define CONFIG_NET_RETRY_COUNT 10
+#define CONFIG_NET_MULTI
+#define CONFIG_PHY_GIGE
+
/* Flash and environment info */
#define CONFIG_SYS_NO_FLASH
#define CONFIG_ENV_IS_IN_NAND
@@ -149,5 +160,10 @@
#define CONFIG_CMD_MEMORY
#define CONFIG_CMD_NAND
#define CONFIG_CMD_JFFS2
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_PING

#endif /* __CONFIG_H */
--
1.7.0.4