diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/Makefile | 3 | ||||
| -rw-r--r-- | drivers/net/fsl-mc/Makefile (renamed from drivers/net/fsl_mc/Makefile) | 4 | ||||
| -rw-r--r-- | drivers/net/fsl-mc/dpmng.c | 91 | ||||
| -rw-r--r-- | drivers/net/fsl-mc/fsl_dpmng_cmd.h | 49 | ||||
| -rw-r--r-- | drivers/net/fsl-mc/mc.c (renamed from drivers/net/fsl_mc/mc.c) | 132 | ||||
| -rw-r--r-- | drivers/net/fsl-mc/mc_sys.c | 63 | ||||
| -rw-r--r-- | drivers/net/keystone_net.c | 4 | ||||
| -rw-r--r-- | drivers/net/ks8695eth.c | 229 |
8 files changed, 297 insertions, 278 deletions
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 46c4ac697d6..b8b08034eb8 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -33,7 +33,6 @@ obj-$(CONFIG_FTMAC110) += ftmac110.o obj-$(CONFIG_FTMAC100) += ftmac100.o obj-$(CONFIG_GRETH) += greth.o obj-$(CONFIG_DRIVER_TI_KEYSTONE_NET) += keystone_net.o -obj-$(CONFIG_DRIVER_KS8695ETH) += ks8695eth.o obj-$(CONFIG_KS8851_MLL) += ks8851_mll.o obj-$(CONFIG_LAN91C96) += lan91c96.o obj-$(CONFIG_MACB) += macb.o @@ -65,5 +64,5 @@ obj-$(CONFIG_XILINX_EMACLITE) += xilinx_emaclite.o obj-$(CONFIG_XILINX_LL_TEMAC) += xilinx_ll_temac.o xilinx_ll_temac_mdio.o \ xilinx_ll_temac_fifo.o xilinx_ll_temac_sdma.o obj-$(CONFIG_ZYNQ_GEM) += zynq_gem.o -obj-$(CONFIG_FSL_MC_ENET) += fsl_mc/ +obj-$(CONFIG_FSL_MC_ENET) += fsl-mc/ obj-$(CONFIG_VSC9953) += vsc9953.o diff --git a/drivers/net/fsl_mc/Makefile b/drivers/net/fsl-mc/Makefile index 483408623c4..206ac6be07a 100644 --- a/drivers/net/fsl_mc/Makefile +++ b/drivers/net/fsl-mc/Makefile @@ -5,4 +5,6 @@ # # Layerscape MC driver -obj-y += mc.o +obj-y += mc.o \ + mc_sys.o \ + dpmng.o diff --git a/drivers/net/fsl-mc/dpmng.c b/drivers/net/fsl-mc/dpmng.c new file mode 100644 index 00000000000..cc14c7b7559 --- /dev/null +++ b/drivers/net/fsl-mc/dpmng.c @@ -0,0 +1,91 @@ +/* Copyright 2014 Freescale Semiconductor Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <fsl-mc/fsl_mc_sys.h> +#include <fsl-mc/fsl_mc_cmd.h> +#include <fsl-mc/fsl_dpmng.h> +#include "fsl_dpmng_cmd.h" + +int mc_get_version(struct fsl_mc_io *mc_io, struct mc_version *mc_ver_info) +{ + struct mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_VERSION, + MC_CMD_PRI_LOW, 0); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + DPMNG_RSP_GET_VERSION(cmd, mc_ver_info); + + return 0; +} + +int dpmng_reset_aiop(struct fsl_mc_io *mc_io, int container_id, + int aiop_tile_id) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMNG_CMDID_RESET_AIOP, + MC_CMD_PRI_LOW, 0); + DPMNG_CMD_RESET_AIOP(cmd, container_id, aiop_tile_id); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpmng_load_aiop(struct fsl_mc_io *mc_io, + int container_id, + int aiop_tile_id, + uint64_t img_iova, + uint32_t img_size) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMNG_CMDID_LOAD_AIOP, + MC_CMD_PRI_LOW, + 0); + DPMNG_CMD_LOAD_AIOP(cmd, container_id, aiop_tile_id, img_size, + img_iova); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpmng_run_aiop(struct fsl_mc_io *mc_io, + int container_id, + int aiop_tile_id, + const struct dpmng_aiop_run_cfg *cfg) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMNG_CMDID_RUN_AIOP, + MC_CMD_PRI_LOW, + 0); + DPMNG_CMD_RUN_AIOP(cmd, container_id, aiop_tile_id, cfg); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +int dpmng_reset_mc_portal(struct fsl_mc_io *mc_io) +{ + struct mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPMNG_CMDID_RESET_MC_PORTAL, + MC_CMD_PRI_LOW, + 0); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} diff --git a/drivers/net/fsl-mc/fsl_dpmng_cmd.h b/drivers/net/fsl-mc/fsl_dpmng_cmd.h new file mode 100644 index 00000000000..c9fe021f455 --- /dev/null +++ b/drivers/net/fsl-mc/fsl_dpmng_cmd.h @@ -0,0 +1,49 @@ +/* Copyright 2014 Freescale Semiconductor Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef __FSL_DPMNG_CMD_H +#define __FSL_DPMNG_CMD_H + +/* Command IDs */ +#define DPMNG_CMDID_GET_VERSION 0x831 +#define DPMNG_CMDID_RESET_AIOP 0x832 +#define DPMNG_CMDID_LOAD_AIOP 0x833 +#define DPMNG_CMDID_RUN_AIOP 0x834 +#define DPMNG_CMDID_RESET_MC_PORTAL 0x835 + +/* cmd, param, offset, width, type, arg_name */ +#define DPMNG_RSP_GET_VERSION(cmd, mc_ver_info) \ +do { \ + MC_RSP_OP(cmd, 0, 0, 32, uint32_t, mc_ver_info->revision); \ + MC_RSP_OP(cmd, 0, 32, 32, uint32_t, mc_ver_info->major); \ + MC_RSP_OP(cmd, 1, 0, 32, uint32_t, mc_ver_info->minor); \ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPMNG_CMD_RESET_AIOP(cmd, container_id, aiop_tile_id) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 32, int, aiop_tile_id); \ + MC_CMD_OP(cmd, 0, 32, 32, int, container_id); \ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPMNG_CMD_LOAD_AIOP(cmd, container_id, aiop_tile_id, img_size, \ + img_iova) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 32, int, aiop_tile_id); \ + MC_CMD_OP(cmd, 0, 32, 32, int, container_id); \ + MC_CMD_OP(cmd, 1, 0, 32, uint32_t, img_size); \ + MC_CMD_OP(cmd, 2, 0, 64, uint64_t, img_iova); \ +} while (0) + +/* cmd, param, offset, width, type, arg_name */ +#define DPMNG_CMD_RUN_AIOP(cmd, container_id, aiop_tile_id, cfg) \ +do { \ + MC_CMD_OP(cmd, 0, 0, 32, int, aiop_tile_id); \ + MC_CMD_OP(cmd, 0, 32, 32, int, container_id); \ + MC_CMD_OP(cmd, 1, 0, 32, uint32_t, cfg->cores_mask); \ + MC_CMD_OP(cmd, 2, 0, 64, uint64_t, cfg->options); \ +} while (0) + +#endif /* __FSL_DPMNG_CMD_H */ diff --git a/drivers/net/fsl_mc/mc.c b/drivers/net/fsl-mc/mc.c index df84568a945..74b0085301c 100644 --- a/drivers/net/fsl_mc/mc.c +++ b/drivers/net/fsl-mc/mc.c @@ -3,9 +3,12 @@ * * SPDX-License-Identifier: GPL-2.0+ */ + #include <errno.h> #include <asm/io.h> -#include <fsl_mc.h> +#include <fsl-mc/fsl_mc.h> +#include <fsl-mc/fsl_mc_sys.h> +#include <fsl-mc/fsl_dpmng.h> DECLARE_GLOBAL_DATA_PTR; static int mc_boot_status; @@ -14,7 +17,7 @@ static int mc_boot_status; * Copying MC firmware or DPL image to DDR */ static int mc_copy_image(const char *title, - u64 image_addr, u32 image_size, u64 mc_ram_addr) + u64 image_addr, u32 image_size, u64 mc_ram_addr) { debug("%s copied to address %p\n", title, (void *)mc_ram_addr); memcpy((void *)mc_ram_addr, (void *)image_addr, image_size); @@ -25,10 +28,9 @@ static int mc_copy_image(const char *title, * MC firmware FIT image parser checks if the image is in FIT * format, verifies integrity of the image and calculates * raw image address and size values. - * Returns 0 if success and 1 if any of the above mentioned + * Returns 0 on success and a negative errno on error. * task fail. **/ - int parse_mc_firmware_fit_image(const void **raw_image_addr, size_t *raw_image_size) { @@ -39,7 +41,7 @@ int parse_mc_firmware_fit_image(const void **raw_image_addr, size_t size; const char *uname = "firmware"; - /* Check if the image is in NOR flash*/ + /* Check if the image is in NOR flash */ #ifdef CONFIG_SYS_LS_MC_FW_IN_NOR fit_hdr = (void *)CONFIG_SYS_LS_MC_FW_ADDR; #else @@ -50,26 +52,26 @@ int parse_mc_firmware_fit_image(const void **raw_image_addr, format = genimg_get_format(fit_hdr); if (format != IMAGE_FORMAT_FIT) { - debug("Not a FIT image\n"); - return 1; + printf("fsl-mc: ERROR: Bad firmware image (not a FIT image)\n"); + return -EINVAL; } if (!fit_check_format(fit_hdr)) { - debug("Bad FIT image format\n"); - return 1; + printf("fsl-mc: ERROR: Bad firmware image (bad FIT header)\n"); + return -EINVAL; } node_offset = fit_image_get_node(fit_hdr, uname); if (node_offset < 0) { - debug("Can not find %s subimage\n", uname); - return 1; + printf("fsl-mc: ERROR: Bad firmware image (missing subimage)\n"); + return -ENOENT; } /* Verify MC firmware image */ if (!(fit_image_verify(fit_hdr, node_offset))) { - debug("Bad MC firmware hash"); - return 1; + printf("fsl-mc: ERROR: Bad firmware image (bad CRC)\n"); + return -EINVAL; } /* Get address and size of raw image */ @@ -90,12 +92,13 @@ int mc_init(bd_t *bis) u64 mc_dpl_offset; u32 reg_gsr; u32 mc_fw_boot_status; - void *fdt_hdr; + void *dpl_fdt_hdr; int dpl_size; const void *raw_image_addr; size_t raw_image_size = 0; - - BUILD_BUG_ON(CONFIG_SYS_LS_MC_FW_LENGTH % 4 != 0); + struct fsl_mc_io mc_io; + int portal_id; + struct mc_version mc_ver_info; /* * The MC private DRAM block was already carved at the end of DRAM @@ -130,25 +133,44 @@ int mc_init(bd_t *bis) /* * Load the MC FW at the beginning of the MC private DRAM block: */ - mc_copy_image( - "MC Firmware", - (u64)raw_image_addr, - raw_image_size, - mc_ram_addr); + mc_copy_image("MC Firmware", + (u64)raw_image_addr, raw_image_size, mc_ram_addr); + + /* + * Get address and size of the DPL blob stored in flash: + */ +#ifdef CONFIG_SYS_LS_MC_DPL_IN_NOR + dpl_fdt_hdr = (void *)CONFIG_SYS_LS_MC_DPL_ADDR; +#else +#error "No CONFIG_SYS_LS_MC_DPL_IN_xxx defined" +#endif + + error = fdt_check_header(dpl_fdt_hdr); + if (error != 0) { + printf("fsl-mc: ERROR: Bad DPL image (bad header)\n"); + goto out; + } + + dpl_size = fdt_totalsize(dpl_fdt_hdr); + if (dpl_size > CONFIG_SYS_LS_MC_DPL_MAX_LENGTH) { + printf("fsl-mc: ERROR: Bad DPL image (too large: %d)\n", + dpl_size); + error = -EINVAL; + goto out; + } /* * Calculate offset in the MC private DRAM block at which the MC DPL * blob is to be placed: */ #ifdef CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET - BUILD_BUG_ON( - (CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET & 0x3) != 0 || - CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET > 0xffffffff); + BUILD_BUG_ON((CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET & 0x3) != 0 || + CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET > 0xffffffff); mc_dpl_offset = CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET; #else mc_dpl_offset = mc_get_dram_block_size() - - roundup(CONFIG_SYS_LS_MC_DPL_LENGTH, 4096); + roundup(CONFIG_SYS_LS_MC_DPL_MAX_LENGTH, 4096); if ((mc_dpl_offset & 0x3) != 0 || mc_dpl_offset > 0xffffffff) { printf("%s: Invalid MC DPL offset: %llu\n", @@ -158,23 +180,14 @@ int mc_init(bd_t *bis) } #endif - /* Check if DPL image is in NOR flash */ -#ifdef CONFIG_SYS_LS_MC_DPL_IN_NOR - fdt_hdr = (void *)CONFIG_SYS_LS_MC_DPL_ADDR; -#else -#error "No CONFIG_SYS_LS_MC_DPL_IN_xxx defined" -#endif - - dpl_size = fdt_totalsize(fdt_hdr); - /* * Load the MC DPL blob at the far end of the MC private DRAM block: + * + * TODO: Should we place the DPL at a different location to match + * assumptions of MC firmware about its memory layout? */ - mc_copy_image( - "MC DPL blob", - (u64)fdt_hdr, - dpl_size, - mc_ram_addr + mc_dpl_offset); + mc_copy_image("MC DPL blob", + (u64)dpl_fdt_hdr, dpl_size, mc_ram_addr + mc_dpl_offset); debug("mc_ccsr_regs %p\n", mc_ccsr_regs); @@ -200,6 +213,8 @@ int mc_init(bd_t *bis) */ out_le32(&mc_ccsr_regs->reg_gsr, (u32)(mc_dpl_offset >> 2)); + printf("\nfsl-mc: Booting Management Complex ...\n"); + /* * Deassert reset and release MC core 0 to run */ @@ -219,17 +234,13 @@ int mc_init(bd_t *bis) } if (timeout <= 0) { - printf("%s: timeout booting management complex firmware\n", - __func__); + printf("fsl-mc: timeout booting management complex firmware\n"); /* TODO: Get an error status from an MC CCSR register */ error = -ETIMEDOUT; goto out; } - printf("Management complex booted (boot status: %#x)\n", - mc_fw_boot_status); - if (mc_fw_boot_status != 0x1) { /* * TODO: Identify critical errors from the GSR register's FS @@ -237,8 +248,41 @@ int mc_init(bd_t *bis) * appropriate errno, so that the status property is set to * failure in the fsl,dprc device tree node. */ + printf("fsl-mc: WARNING: Firmware booted with error (GSR: %#x)\n", + reg_gsr); } + /* + * TODO: need to obtain the portal_id for the root container from the + * DPL + */ + portal_id = 0; + + /* + * Check that the MC firmware is responding portal commands: + */ + mc_io.mmio_regs = SOC_MC_PORTAL_ADDR(portal_id); + debug("Checking access to MC portal of root DPRC container (portal_id %d, portal physical addr %p)\n", + portal_id, mc_io.mmio_regs); + + error = mc_get_version(&mc_io, &mc_ver_info); + if (error != 0) { + printf("fsl-mc: ERROR: Firmware version check failed (error: %d)\n", + error); + goto out; + } + + if (MC_VER_MAJOR != mc_ver_info.major) + printf("fsl-mc: ERROR: Firmware major version mismatch (found: %d, expected: %d)\n", + mc_ver_info.major, MC_VER_MAJOR); + + if (MC_VER_MINOR != mc_ver_info.minor) + printf("fsl-mc: WARNING: Firmware minor version mismatch (found: %d, expected: %d)\n", + mc_ver_info.minor, MC_VER_MINOR); + + printf("fsl-mc: Management Complex booted (version: %d.%d.%d, boot status: %#x)\n", + mc_ver_info.major, mc_ver_info.minor, mc_ver_info.revision, + mc_fw_boot_status); out: if (error != 0) mc_boot_status = -error; diff --git a/drivers/net/fsl-mc/mc_sys.c b/drivers/net/fsl-mc/mc_sys.c new file mode 100644 index 00000000000..7c8e003ad00 --- /dev/null +++ b/drivers/net/fsl-mc/mc_sys.c @@ -0,0 +1,63 @@ +/* + * Freescale Layerscape MC I/O wrapper + * + * Copyright (C) 2014 Freescale Semiconductor, Inc. + * Author: German Rivera <German.Rivera@freescale.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <fsl-mc/fsl_mc_sys.h> +#include <fsl-mc/fsl_mc_cmd.h> +#include <common.h> +#include <errno.h> +#include <asm/io.h> + +#define MC_CMD_HDR_READ_CMDID(_hdr) \ + ((uint16_t)u64_dec((_hdr), MC_CMD_HDR_CMDID_O, MC_CMD_HDR_CMDID_S)) + +/** + * mc_send_command - Send MC command and wait for response + * + * @mc_io: Pointer to MC I/O object to be used + * @cmd: MC command buffer. On input, it contains the command to send to the MC. + * On output, it contains the response from the MC if any. + * + * Depending on the sharing option specified when creating the MC portal + * wrapper, this function will use a spinlock or mutex to ensure exclusive + * access to the MC portal from the point when the command is sent until a + * response is received from the MC. + */ +int mc_send_command(struct fsl_mc_io *mc_io, + struct mc_command *cmd) +{ + enum mc_cmd_status status; + int timeout = 2000; + + mc_write_command(mc_io->mmio_regs, cmd); + + for ( ; ; ) { + status = mc_read_response(mc_io->mmio_regs, cmd); + if (status != MC_CMD_STATUS_READY) + break; + + if (--timeout == 0) { + printf("Error: Timeout waiting for MC response\n"); + return -ETIMEDOUT; + } + + udelay(500); + } + + if (status != MC_CMD_STATUS_OK) { + printf("Error: MC command failed (portal: %p, obj handle: %#x, command: %#x, status: %#x)\n", + mc_io->mmio_regs, + (unsigned int)MC_CMD_HDR_READ_AUTHID(cmd->header), + (unsigned int)MC_CMD_HDR_READ_CMDID(cmd->header), + (unsigned int)status); + + return -EIO; + } + + return 0; +} diff --git a/drivers/net/keystone_net.c b/drivers/net/keystone_net.c index bedab1d6068..35f1a573313 100644 --- a/drivers/net/keystone_net.c +++ b/drivers/net/keystone_net.c @@ -398,8 +398,6 @@ static int keystone2_eth_open(struct eth_device *dev, bd_t *bis) sys_has_mdio = (eth_priv->sgmii_link_type == SGMII_LINK_MAC_PHY) ? 1 : 0; - keystone2_net_serdes_setup(); - if (sys_has_mdio) keystone2_mdio_reset(mdio_bus); @@ -556,6 +554,8 @@ int keystone2_emac_initialize(struct eth_priv_t *eth_priv) return res; } + keystone2_net_serdes_setup(); + /* Create phy device and bind it with driver */ #ifdef CONFIG_KSNET_MDIO_PHY_CONFIG_ENABLE phy_dev = phy_connect(mdio_bus, eth_priv->phy_addr, diff --git a/drivers/net/ks8695eth.c b/drivers/net/ks8695eth.c deleted file mode 100644 index b4822e95048..00000000000 --- a/drivers/net/ks8695eth.c +++ /dev/null @@ -1,229 +0,0 @@ -/* - * ks8695eth.c -- KS8695 ethernet driver - * - * (C) Copyright 2004-2005, Greg Ungerer <greg.ungerer@opengear.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/****************************************************************************/ - -#include <common.h> -#include <malloc.h> -#include <net.h> -#include <asm/io.h> -#include <asm/arch/platform.h> - -/****************************************************************************/ - -/* - * Hardware register access to the KS8695 LAN ethernet port - * (well, it is the 4 port switch really). - */ -#define ks8695_read(a) *((volatile unsigned long *) (KS8695_IO_BASE + (a))) -#define ks8695_write(a,v) *((volatile unsigned long *) (KS8695_IO_BASE + (a))) = (v) - -/****************************************************************************/ - -/* - * Define the descriptor in-memory data structures. - */ -struct ks8695_txdesc { - uint32_t owner; - uint32_t ctrl; - uint32_t addr; - uint32_t next; -}; - -struct ks8695_rxdesc { - uint32_t status; - uint32_t ctrl; - uint32_t addr; - uint32_t next; -}; - -/****************************************************************************/ - -/* - * Allocate local data structures to use for receiving and sending - * packets. Just to keep it all nice and simple. - */ - -#define TXDESCS 4 -#define RXDESCS 4 -#define BUFSIZE 2048 - -volatile struct ks8695_txdesc ks8695_tx[TXDESCS] __attribute__((aligned(256))); -volatile struct ks8695_rxdesc ks8695_rx[RXDESCS] __attribute__((aligned(256))); -volatile uint8_t ks8695_bufs[BUFSIZE*(TXDESCS+RXDESCS)] __attribute__((aligned(2048)));; - -/****************************************************************************/ - -/* - * Ideally we want to use the MAC address stored in flash. - * But we do some sanity checks in case they are not present - * first. - */ -unsigned char eth_mac[] = { - 0x00, 0x13, 0xc6, 0x00, 0x00, 0x00 -}; - -void ks8695_getmac(void) -{ - unsigned char *fp; - int i; - - /* Check if flash MAC is valid */ - fp = (unsigned char *) 0x0201c000; - for (i = 0; (i < 6); i++) { - if ((fp[i] != 0) && (fp[i] != 0xff)) - break; - } - - /* If we found a valid looking MAC address then use it */ - if (i < 6) - memcpy(ð_mac[0], fp, 6); -} - -/****************************************************************************/ - -static int ks8695_eth_init(struct eth_device *dev, bd_t *bd) -{ - int i; - - debug ("%s(%d): eth_reset()\n", __FILE__, __LINE__); - - /* Reset the ethernet engines first */ - ks8695_write(KS8695_LAN_DMA_TX, 0x80000000); - ks8695_write(KS8695_LAN_DMA_RX, 0x80000000); - - ks8695_getmac(); - - /* Set MAC address */ - ks8695_write(KS8695_LAN_MAC_LOW, (eth_mac[5] | (eth_mac[4] << 8) | - (eth_mac[3] << 16) | (eth_mac[2] << 24))); - ks8695_write(KS8695_LAN_MAC_HIGH, (eth_mac[1] | (eth_mac[0] << 8))); - - /* Turn the 4 port switch on */ - i = ks8695_read(KS8695_SWITCH_CTRL0); - ks8695_write(KS8695_SWITCH_CTRL0, (i | 0x1)); - /* ks8695_write(KS8695_WAN_CONTROL, 0x3f000066); */ - - /* Initialize descriptor rings */ - for (i = 0; (i < TXDESCS); i++) { - ks8695_tx[i].owner = 0; - ks8695_tx[i].ctrl = 0; - ks8695_tx[i].addr = (uint32_t) &ks8695_bufs[i*BUFSIZE]; - ks8695_tx[i].next = (uint32_t) &ks8695_tx[i+1]; - } - ks8695_tx[TXDESCS-1].ctrl = 0x02000000; - ks8695_tx[TXDESCS-1].next = (uint32_t) &ks8695_tx[0]; - - for (i = 0; (i < RXDESCS); i++) { - ks8695_rx[i].status = 0x80000000; - ks8695_rx[i].ctrl = BUFSIZE - 4; - ks8695_rx[i].addr = (uint32_t) &ks8695_bufs[(i+TXDESCS)*BUFSIZE]; - ks8695_rx[i].next = (uint32_t) &ks8695_rx[i+1]; - } - ks8695_rx[RXDESCS-1].ctrl |= 0x00080000; - ks8695_rx[RXDESCS-1].next = (uint32_t) &ks8695_rx[0]; - - /* The KS8695 is pretty slow reseting the ethernets... */ - udelay(2000000); - - /* Enable the ethernet engine */ - ks8695_write(KS8695_LAN_TX_LIST, (uint32_t) &ks8695_tx[0]); - ks8695_write(KS8695_LAN_RX_LIST, (uint32_t) &ks8695_rx[0]); - ks8695_write(KS8695_LAN_DMA_TX, 0x3); - ks8695_write(KS8695_LAN_DMA_RX, 0x71); - ks8695_write(KS8695_LAN_DMA_RX_START, 0x1); - - printf("KS8695 ETHERNET: %pM\n", eth_mac); - return 0; -} - -/****************************************************************************/ - -static void ks8695_eth_halt(struct eth_device *dev) -{ - debug ("%s(%d): eth_halt()\n", __FILE__, __LINE__); - - /* Reset the ethernet engines */ - ks8695_write(KS8695_LAN_DMA_TX, 0x80000000); - ks8695_write(KS8695_LAN_DMA_RX, 0x80000000); -} - -/****************************************************************************/ - -static int ks8695_eth_recv(struct eth_device *dev) -{ - volatile struct ks8695_rxdesc *dp; - int i, len = 0; - - debug ("%s(%d): eth_rx()\n", __FILE__, __LINE__); - - for (i = 0; (i < RXDESCS); i++) { - dp= &ks8695_rx[i]; - if ((dp->status & 0x80000000) == 0) { - len = (dp->status & 0x7ff) - 4; - NetReceive((void *) dp->addr, len); - dp->status = 0x80000000; - ks8695_write(KS8695_LAN_DMA_RX_START, 0x1); - break; - } - } - - return len; -} - -/****************************************************************************/ - -static int ks8695_eth_send(struct eth_device *dev, void *packet, int len) -{ - volatile struct ks8695_txdesc *dp; - static int next = 0; - - debug ("%s(%d): eth_send(packet=%p,len=%d)\n", __FILE__, __LINE__, - packet, len); - - dp = &ks8695_tx[next]; - memcpy((void *) dp->addr, (void *) packet, len); - - if (len < 64) { - memset((void *) (dp->addr + len), 0, 64-len); - len = 64; - } - - dp->ctrl = len | 0xe0000000; - dp->owner = 0x80000000; - - ks8695_write(KS8695_LAN_DMA_TX, 0x3); - ks8695_write(KS8695_LAN_DMA_TX_START, 0x1); - - if (++next >= TXDESCS) - next = 0; - - return 0; -} - -/****************************************************************************/ - -int ks8695_eth_initialize(void) -{ - struct eth_device *dev; - - dev = malloc(sizeof(*dev)); - if (dev == NULL) - return -1; - memset(dev, 0, sizeof(*dev)); - - dev->iobase = KS8695_IO_BASE + KS8695_LAN_DMA_TX; - dev->init = ks8695_eth_init; - dev->halt = ks8695_eth_halt; - dev->send = ks8695_eth_send; - dev->recv = ks8695_eth_recv; - strcpy(dev->name, "ks8695eth"); - - eth_register(dev); - return 0; -} |