[U-Boot] [PATCH 06/14] powerpc/corenet_ds: Add fman support
Mingkai Hu
Mingkai.hu at freescale.com
Thu Jan 27 05:52:44 CET 2011
From: Kumar Gala <galak at kernel.crashing.org>
Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
Signed-off-by: Mingkai Hu <Mingkai.hu at freescale.com>
---
board/freescale/corenet_ds/Makefile | 1 +
board/freescale/corenet_ds/corenet_ds.c | 11 +-
board/freescale/corenet_ds/eth_p4080.c | 352 +++++++++++++++++++++++++++++++
3 files changed, 359 insertions(+), 5 deletions(-)
create mode 100644 board/freescale/corenet_ds/eth_p4080.c
diff --git a/board/freescale/corenet_ds/Makefile b/board/freescale/corenet_ds/Makefile
index 1047d78..a6872ac 100644
--- a/board/freescale/corenet_ds/Makefile
+++ b/board/freescale/corenet_ds/Makefile
@@ -28,6 +28,7 @@ LIB = $(obj)lib$(BOARD).o
COBJS-y += $(BOARD).o
COBJS-y += ddr.o
+COBJS-$(CONFIG_P4080DS) += eth_p4080.o
COBJS-$(CONFIG_P4080DS) += p4080ds_ddr.o
COBJS-$(CONFIG_PCI) += pci.o
COBJS-y += law.o
diff --git a/board/freescale/corenet_ds/corenet_ds.c b/board/freescale/corenet_ds/corenet_ds.c
index 232dc72..2eadf99 100644
--- a/board/freescale/corenet_ds/corenet_ds.c
+++ b/board/freescale/corenet_ds/corenet_ds.c
@@ -32,10 +32,12 @@
#include <asm/fsl_serdes.h>
#include <asm/fsl_portals.h>
#include <asm/fsl_liodn.h>
+#include <fm_eth.h>
extern void pci_of_setup(void *blob, bd_t *bd);
#include "../common/ngpixis.h"
+#include "../../../drivers/net/fm/dtsec.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -193,6 +195,8 @@ void board_lmb_reserve(struct lmb *lmb)
}
#endif
+extern void fdt_fixup_p4080ds_enet(void * blob);
+
void ft_board_setup(void *blob, bd_t *bd)
{
phys_addr_t base;
@@ -210,9 +214,6 @@ void ft_board_setup(void *blob, bd_t *bd)
#endif
fdt_fixup_liodn(blob);
-}
-
-int board_eth_init(bd_t *bis)
-{
- return pci_eth_init(bis);
+ fdt_fixup_fman_ethernet(blob);
+ fdt_fixup_p4080ds_enet(blob);
}
diff --git a/board/freescale/corenet_ds/eth_p4080.c b/board/freescale/corenet_ds/eth_p4080.c
new file mode 100644
index 0000000..465b07c
--- /dev/null
+++ b/board/freescale/corenet_ds/eth_p4080.c
@@ -0,0 +1,352 @@
+/*
+ * Copyright 2009-2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <asm/mmu.h>
+#include <asm/processor.h>
+#include <asm/cache.h>
+#include <asm/immap_85xx.h>
+#include <asm/fsl_law.h>
+#include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
+#include <asm/fsl_portals.h>
+#include <asm/fsl_liodn.h>
+#include <fm_eth.h>
+
+#include "../common/ngpixis.h"
+#include "../../../drivers/net/fm/dtsec.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define EMI_NONE 0xffffffff
+#define EMI_MASK 0xf0000000
+#define EMI1_RGMII 0x0
+#define EMI1_SLOT3 0x80000000 /* bank1 EFGH */
+#define EMI1_SLOT4 0x40000000 /* bank2 ABCD */
+#define EMI1_SLOT5 0xc0000000 /* bank3 ABCD */
+#define EMI2_SLOT4 0x10000000 /* bank2 ABCD */
+#define EMI2_SLOT5 0x30000000 /* bank3 ABCD */
+#define EMI1_MASK 0xc0000000
+#define EMI2_MASK 0x30000000
+
+static int mdio_mux[NUM_FM_PORTS];
+
+void mux_mdio_for_fm(enum fm_port port, int fm, int num)
+{
+ ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+ uint gpioval = in_be32(&pgpio->gpdat) & ~(EMI_MASK);
+ gpioval |= mdio_mux[port];
+
+ out_be32(&pgpio->gpdat, gpioval);
+}
+
+static u32 find_or_alloc_phandle(void * blob, const char * path, u32 phandle)
+{
+ int off;
+ u32 ph = 0;
+
+ path = fdt_get_alias(blob, path);
+ if (path) {
+ off = fdt_path_offset(blob, path);
+ if (off) {
+ ph = fdt_get_phandle(blob, off);
+ if ((ph == 0) || (ph == -1)) {
+ ph = phandle++;
+ fdt_setprop_cell(blob, off, "linux,phandle", ph);
+ }
+ }
+ }
+
+ return ph;
+}
+
+static void fdt_set_phy_handle(void *fdt, char * prop, phys_addr_t pa,
+ const char *alias)
+{
+ int offset;
+ u32 ph = find_or_alloc_phandle(fdt, alias, fdt_alloc_phandle(fdt));
+
+ offset = fdt_node_offset_by_compat_reg(fdt, prop, pa);
+ fdt_setprop(fdt, offset, "phy-handle", &ph, sizeof(ph));
+}
+
+/*
+ * Sets the specified node's status to the value contained in "status"
+ * If the first character of the specified path is "/" then we use
+ * alias as a path. Otherwise, we look for an alias of that name
+ */
+static void fdt_set_node_status(void *fdt, const char *alias,
+ const char *status)
+{
+ const char *path = fdt_get_alias(fdt, alias);
+
+ if (!path)
+ path = alias;
+
+ do_fixup_by_path(fdt, path, "status", status, strlen(status) + 1, 1);
+}
+
+void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
+ enum fm_port port, int offset)
+{
+
+ if (mdio_mux[port] == EMI1_RGMII) {
+ fdt_set_phy_handle(blob, prop, pa, "phy_rgmii");
+ }
+
+ if (mdio_mux[port] == EMI1_SLOT3) {
+ int idx = port - FM2_DTSEC1 + 5;
+ char phy[16];
+
+ sprintf(phy, "phy%d_slot3", idx);
+
+ fdt_set_phy_handle(blob, prop, pa, phy);
+ }
+}
+
+void fdt_fixup_p4080ds_enet(void *fdt)
+{
+ int i;
+
+ /*
+ * P4080DS can be configured in many different ways, supporting a number
+ * of combinations of ethernet devices and phy types. In order to
+ * have just one device tree for all of those configurations, we fix up
+ * the tree here. By default, the device tree configures FM1 and FM2
+ * for SGMII, and configures XAUI on both 10G interfaces. So we have
+ * a number of different variables to track:
+ *
+ * 1) Whether the device is configured at all. Whichever devices are
+ * not enabled should be disabled by setting the "status" property
+ * to "disabled".
+ * 2) What the PHY interface is. If this is an RGMII connection,
+ * we should change the "phy-connection-type" property to
+ * "rgmii"
+ * 3) Which PHY is being used. Because the MDIO buses are muxed,
+ * we need to redirect the "phy-handle" property to point at the
+ * PHY on the right slot/bus.
+ */
+
+ /* We've got six MDIO nodes that may or may not need to exist */
+ fdt_set_node_status(fdt, "emi1_slot3", "disabled");
+ fdt_set_node_status(fdt, "emi1_slot4", "disabled");
+ fdt_set_node_status(fdt, "emi1_slot5", "disabled");
+ fdt_set_node_status(fdt, "emi2_slot4", "disabled");
+ fdt_set_node_status(fdt, "emi2_slot5", "disabled");
+
+ for (i = 0; i < NUM_FM_PORTS; i++) {
+ switch(mdio_mux[i]) {
+ case EMI1_SLOT3:
+ fdt_set_node_status(fdt, "emi1_slot3", "okay");
+ break;
+ case EMI1_SLOT4:
+ fdt_set_node_status(fdt, "emi1_slot4", "okay");
+ break;
+ case EMI1_SLOT5:
+ fdt_set_node_status(fdt, "emi1_slot5", "okay");
+ break;
+ case EMI2_SLOT4:
+ fdt_set_node_status(fdt, "emi2_slot4", "okay");
+ break;
+ case EMI2_SLOT5:
+ fdt_set_node_status(fdt, "emi2_slot5", "okay");
+ break;
+ }
+ }
+}
+
+enum board_slots {
+ SLOT1 = 1,
+ SLOT2,
+ SLOT3,
+ SLOT4,
+ SLOT5,
+ SLOT6,
+};
+
+int board_eth_init(bd_t *bis)
+{
+#ifdef CONFIG_FMAN_ENET
+ ccsr_gpio_t *pgpio = (void *)(CONFIG_SYS_MPC85xx_GPIO_ADDR);
+ struct dtsec *tsec = (void *)CONFIG_SYS_FSL_FM1_DTSEC1_ADDR;
+ int i;
+
+ u8 lane_to_slot[] = {
+ SLOT1, /* 0 - Bank 1:A */
+ SLOT1, /* 1 - Bank 1:B */
+ SLOT2, /* 2 - Bank 1:C */
+ SLOT2, /* 3 - Bank 1:D */
+ SLOT3, /* 4 - Bank 1:E */
+ SLOT3, /* 5 - Bank 1:F */
+ SLOT3, /* 6 - Bank 1:G */
+ SLOT3, /* 7 - Bank 1:H */
+ SLOT6, /* 8 - Bank 1:I */
+ SLOT6, /* 9 - Bank 1:J */
+ SLOT4, /* 10 - Bank 2:A */
+ SLOT4, /* 11 - Bank 2:B */
+ SLOT4, /* 12 - Bank 2:C */
+ SLOT4, /* 13 - Bank 2:D */
+ SLOT5, /* 14 - Bank 3:A */
+ SLOT5, /* 15 - Bank 3:B */
+ SLOT5, /* 16 - Bank 3:C */
+ SLOT5, /* 17 - Bank 3:D */
+ };
+
+ /*
+ * Set TBIPA on FM1 at DTSEC1. This is needed for configurations
+ * where FM1 at DTSEC1 isn't used directly, since it provides
+ * MDIO for other ports.
+ */
+ out_be32(&tsec->tbipa, CONFIG_SYS_TBIPA_VALUE);
+
+ /* Initialize the mdio_mux array so we can recognize empty elements */
+ for (i = 0; i < NUM_FM_PORTS; i++)
+ mdio_mux[i] = EMI_NONE;
+
+ /* The first 4 GPIOs are outputs to control MDIO bus muxing */
+ out_be32(&pgpio->gpdir, EMI_MASK);
+
+ fm_info_set_phy_address(FM1_DTSEC1, CONFIG_SYS_FM1_DTSEC1_PHY_ADDR);
+ fm_info_set_phy_address(FM1_DTSEC2, CONFIG_SYS_FM1_DTSEC2_PHY_ADDR);
+ fm_info_set_phy_address(FM1_DTSEC3, CONFIG_SYS_FM1_DTSEC3_PHY_ADDR);
+ fm_info_set_phy_address(FM1_DTSEC4, CONFIG_SYS_FM1_DTSEC4_PHY_ADDR);
+ fm_info_set_phy_address(FM1_10GEC1, CONFIG_SYS_FM1_10GEC1_PHY_ADDR);
+
+#if (CONFIG_SYS_NUM_FMAN == 2)
+ fm_info_set_phy_address(FM2_DTSEC1, CONFIG_SYS_FM2_DTSEC1_PHY_ADDR);
+ fm_info_set_phy_address(FM2_DTSEC2, CONFIG_SYS_FM2_DTSEC2_PHY_ADDR);
+ fm_info_set_phy_address(FM2_DTSEC3, CONFIG_SYS_FM2_DTSEC3_PHY_ADDR);
+ fm_info_set_phy_address(FM2_DTSEC4, CONFIG_SYS_FM2_DTSEC4_PHY_ADDR);
+ fm_info_set_phy_address(FM2_10GEC1, CONFIG_SYS_FM2_10GEC1_PHY_ADDR);
+#endif
+
+ for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
+ int idx = i - FM1_DTSEC1, lane, slot;
+ switch(fm_info_get_enet_if(i)) {
+ case SGMII:
+ lane = serdes_get_first_lane(SGMII_FM1_DTSEC1 + idx);
+ if (lane < 0)
+ break;
+ slot = lane_to_slot[lane];
+ switch (slot) {
+ case SLOT3:
+ mdio_mux[i] = EMI1_SLOT3;
+ break;
+ case SLOT4:
+ mdio_mux[i] = EMI1_SLOT4;
+ break;
+ case SLOT5:
+ mdio_mux[i] = EMI1_SLOT5;
+ break;
+ };
+ break;
+ case RGMII:
+ fm_info_set_phy_address(i, 0);
+ mdio_mux[i] = EMI1_RGMII;
+ break;
+ default:
+ break;
+ }
+ }
+
+ for (i = FM1_10GEC1; i < FM1_10GEC1 + CONFIG_SYS_NUM_FM1_10GEC; i++) {
+ int idx = i - FM1_10GEC1, lane, slot;
+ switch(fm_info_get_enet_if(i)) {
+ case XAUI:
+ lane = serdes_get_first_lane(XAUI_FM1 + idx);
+ if (lane < 0)
+ break;
+ slot = lane_to_slot[lane];
+ switch (slot) {
+ case SLOT4:
+ mdio_mux[i] = EMI2_SLOT4;
+ break;
+ case SLOT5:
+ mdio_mux[i] = EMI2_SLOT5;
+ break;
+ };
+ break;
+ default:
+ break;
+ }
+ }
+
+#if (CONFIG_SYS_NUM_FMAN == 2)
+ for (i = FM2_DTSEC1; i < FM2_DTSEC1 + CONFIG_SYS_NUM_FM2_DTSEC; i++) {
+ int idx = i - FM2_DTSEC1, lane, slot;
+ switch(fm_info_get_enet_if(i)) {
+ case SGMII:
+ lane = serdes_get_first_lane(SGMII_FM2_DTSEC1 + idx);
+ if (lane < 0)
+ break;
+ slot = lane_to_slot[lane];
+ switch (slot) {
+ case SLOT3:
+ mdio_mux[i] = EMI1_SLOT3;
+ break;
+ case SLOT4:
+ mdio_mux[i] = EMI1_SLOT4;
+ break;
+ case SLOT5:
+ mdio_mux[i] = EMI1_SLOT5;
+ break;
+ };
+ break;
+ case RGMII:
+ fm_info_set_phy_address(i, 0);
+ mdio_mux[i] = EMI1_RGMII;
+ break;
+ default:
+ break;
+ }
+ }
+
+ for (i = FM2_10GEC1; i < FM2_10GEC1 + CONFIG_SYS_NUM_FM2_10GEC; i++) {
+ int idx = i - FM2_10GEC1, lane, slot;
+ switch(fm_info_get_enet_if(i)) {
+ case XAUI:
+ lane = serdes_get_first_lane(XAUI_FM2 + idx);
+ if (lane < 0)
+ break;
+ slot = lane_to_slot[lane];
+ switch (slot) {
+ case SLOT4:
+ mdio_mux[i] = EMI2_SLOT4;
+ break;
+ case SLOT5:
+ mdio_mux[i] = EMI2_SLOT5;
+ break;
+ };
+ break;
+ default:
+ break;
+ }
+ }
+#endif
+
+ cpu_eth_init(bis);
+#endif /* CONFIG_FMAN_ENET */
+
+ return pci_eth_init(bis);
+}
--
1.6.4
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