diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/Makefile | 6 | ||||
| -rw-r--r-- | drivers/tsi108_eth.c | 1036 | ||||
| -rw-r--r-- | drivers/tsi108_i2c.c | 298 | ||||
| -rw-r--r-- | drivers/tsi108_pci.c | 178 |
4 files changed, 1515 insertions, 3 deletions
diff --git a/drivers/Makefile b/drivers/Makefile index 5a369df..6a3ea5d 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -35,8 +35,8 @@ COBJS = 3c589.o 5701rls.o ali512x.o atmel_usart.o \ lan91c96.o \ natsemi.o ne2000.o netarm_eth.o netconsole.o \ ns16550.o ns8382x.o ns87308.o ns7520_eth.o omap1510_i2c.o \ - omap24xx_i2c.o pci.o pci_auto.o pci_indirect.o \ - pcnet.o plb2800_eth.o \ + omap24xx_i2c.o pci.o pci_auto.o pci_indirect.o tsi108_pci.o\ + tsi108_i2c.o pcnet.o plb2800_eth.o \ ps2ser.o ps2mult.o pc_keyb.o \ rtl8019.o rtl8139.o rtl8169.o \ s3c4510b_eth.o s3c4510b_uart.o \ @@ -45,7 +45,7 @@ COBJS = 3c589.o 5701rls.o ali512x.o atmel_usart.o \ serial_pl010.o serial_pl011.o serial_xuartlite.o \ sl811_usb.o sm501.o smc91111.o smiLynxEM.o \ status_led.o sym53c8xx.o ahci.o \ - ti_pci1410a.o tigon3.o tsec.o \ + ti_pci1410a.o tigon3.o tsec.o tsi108_eth.o\ usbdcore.o usbdcore_ep0.o usbdcore_omap1510.o usbtty.o \ videomodes.o w83c553f.o \ ks8695eth.o \ diff --git a/drivers/tsi108_eth.c b/drivers/tsi108_eth.c new file mode 100644 index 0000000..47341be --- /dev/null +++ b/drivers/tsi108_eth.c @@ -0,0 +1,1036 @@ +/*********************************************************************** + * + * Copyright (c) 2005 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 + * + * Description: + * Ethernet interface for Tundra TSI108 bridge chip + * + ***********************************************************************/ + +#include <config.h> + +#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) \ + && defined(CONFIG_TSI108_ETH) + +#if !defined(CONFIG_TSI108_ETH_NUM_PORTS) || (CONFIG_TSI108_ETH_NUM_PORTS > 2) +#error "CONFIG_TSI108_ETH_NUM_PORTS must be defined as 1 or 2" +#endif + +#include <common.h> +#include <malloc.h> +#include <net.h> +#include <asm/cache.h> + +#ifdef DEBUG +#define TSI108_ETH_DEBUG 7 +#else +#define TSI108_ETH_DEBUG 0 +#endif + +#if TSI108_ETH_DEBUG > 0 +#define debug_lev(lev, fmt, args...) \ +if (lev <= TSI108_ETH_DEBUG) \ +printf ("%s %d: " fmt, __FUNCTION__, __LINE__, ##args) +#else +#define debug_lev(lev, fmt, args...) do{}while(0) +#endif + +#define RX_PRINT_ERRORS +#define TX_PRINT_ERRORS + +#define ETH_BASE (CFG_TSI108_CSR_BASE + 0x6000) + +#define ETH_PORT_OFFSET 0x400 + +#define __REG32(base, offset) (*((volatile u32 *)((char *)(base) + (offset)))) + +#define reg_MAC_CONFIG_1(base) __REG32(base, 0x00000000) +#define MAC_CONFIG_1_TX_ENABLE (0x00000001) +#define MAC_CONFIG_1_SYNC_TX_ENABLE (0x00000002) +#define MAC_CONFIG_1_RX_ENABLE (0x00000004) +#define MAC_CONFIG_1_SYNC_RX_ENABLE (0x00000008) +#define MAC_CONFIG_1_TX_FLOW_CONTROL (0x00000010) +#define MAC_CONFIG_1_RX_FLOW_CONTROL (0x00000020) +#define MAC_CONFIG_1_LOOP_BACK (0x00000100) +#define MAC_CONFIG_1_RESET_TX_FUNCTION (0x00010000) +#define MAC_CONFIG_1_RESET_RX_FUNCTION (0x00020000) +#define MAC_CONFIG_1_RESET_TX_MAC (0x00040000) +#define MAC_CONFIG_1_RESET_RX_MAC (0x00080000) +#define MAC_CONFIG_1_SIM_RESET (0x40000000) +#define MAC_CONFIG_1_SOFT_RESET (0x80000000) + +#define reg_MAC_CONFIG_2(base) __REG32(base, 0x00000004) +#define MAC_CONFIG_2_FULL_DUPLEX (0x00000001) +#define MAC_CONFIG_2_CRC_ENABLE (0x00000002) +#define MAC_CONFIG_2_PAD_CRC (0x00000004) +#define MAC_CONFIG_2_LENGTH_CHECK (0x00000010) +#define MAC_CONFIG_2_HUGE_FRAME (0x00000020) +#define MAC_CONFIG_2_INTERFACE_MODE(val) (((val) & 0x3) << 8) +#define MAC_CONFIG_2_PREAMBLE_LENGTH(val) (((val) & 0xf) << 12) +#define INTERFACE_MODE_NIBBLE 1 /* 10/100 Mb/s MII) */ +#define INTERFACE_MODE_BYTE 2 /* 1000 Mb/s GMII/TBI */ + +#define reg_MAXIMUM_FRAME_LENGTH(base) __REG32(base, 0x00000010) + +#define reg_MII_MGMT_CONFIG(base) __REG32(base, 0x00000020) +#define MII_MGMT_CONFIG_MGMT_CLOCK_SELECT(val) ((val) & 0x7) +#define MII_MGMT_CONFIG_NO_PREAMBLE (0x00000010) +#define MII_MGMT_CONFIG_SCAN_INCREMENT (0x00000020) +#define MII_MGMT_CONFIG_RESET_MGMT (0x80000000) + +#define reg_MII_MGMT_COMMAND(base) __REG32(base, 0x00000024) +#define MII_MGMT_COMMAND_READ_CYCLE (0x00000001) +#define MII_MGMT_COMMAND_SCAN_CYCLE (0x00000002) + +#define reg_MII_MGMT_ADDRESS(base) __REG32(base, 0x00000028) +#define reg_MII_MGMT_CONTROL(base) __REG32(base, 0x0000002c) +#define reg_MII_MGMT_STATUS(base) __REG32(base, 0x00000030) + +#define reg_MII_MGMT_INDICATORS(base) __REG32(base, 0x00000034) +#define MII_MGMT_INDICATORS_BUSY (0x00000001) +#define MII_MGMT_INDICATORS_SCAN (0x00000002) +#define MII_MGMT_INDICATORS_NOT_VALID (0x00000004) + +#define reg_INTERFACE_STATUS(base) __REG32(base, 0x0000003c) +#define INTERFACE_STATUS_LINK_FAIL (0x00000008) +#define INTERFACE_STATUS_EXCESS_DEFER (0x00000200) + +#define reg_STATION_ADDRESS_1(base) __REG32(base, 0x00000040) +#define reg_STATION_ADDRESS_2(base) __REG32(base, 0x00000044) + +#define reg_PORT_CONTROL(base) __REG32(base, 0x00000200) +#define PORT_CONTROL_PRI (0x00000001) +#define PORT_CONTROL_BPT (0x00010000) +#define PORT_CONTROL_SPD (0x00040000) +#define PORT_CONTROL_RBC (0x00080000) +#define PORT_CONTROL_PRB (0x00200000) +#define PORT_CONTROL_DIS (0x00400000) +#define PORT_CONTROL_TBI (0x00800000) +#define PORT_CONTROL_STE (0x10000000) +#define PORT_CONTROL_ZOR (0x20000000) +#define PORT_CONTROL_CLR (0x40000000) +#define PORT_CONTROL_SRT (0x80000000) + +#define reg_TX_CONFIG(base) __REG32(base, 0x00000220) +#define TX_CONFIG_START_Q (0x00000003) +#define TX_CONFIG_EHP (0x00400000) +#define TX_CONFIG_CHP (0x00800000) +#define TX_CONFIG_RST (0x80000000) + +#define reg_TX_CONTROL(base) __REG32(base, 0x00000224) +#define TX_CONTROL_GO (0x00008000) +#define TX_CONTROL_MP (0x01000000) +#define TX_CONTROL_EAI (0x20000000) +#define TX_CONTROL_ABT (0x40000000) +#define TX_CONTROL_EII (0x80000000) + +#define reg_TX_STATUS(base) __REG32(base, 0x00000228) +#define TX_STATUS_QUEUE_USABLE (0x0000000f) +#define TX_STATUS_CURR_Q (0x00000300) +#define TX_STATUS_ACT (0x00008000) +#define TX_STATUS_QUEUE_IDLE (0x000f0000) +#define TX_STATUS_EOQ_PENDING (0x0f000000) + +#define reg_TX_EXTENDED_STATUS(base) __REG32(base, 0x0000022c) +#define TX_EXTENDED_STATUS_END_OF_QUEUE_CONDITION (0x0000000f) +#define TX_EXTENDED_STATUS_END_OF_FRAME_CONDITION (0x00000f00) +#define TX_EXTENDED_STATUS_DESCRIPTOR_INTERRUPT_CONDITION (0x000f0000) +#define TX_EXTENDED_STATUS_ERROR_FLAG (0x0f000000) + +#define reg_TX_THRESHOLDS(base) __REG32(base, 0x00000230) + +#define reg_TX_DIAGNOSTIC_ADDR(base) __REG32(base, 0x00000270) +#define TX_DIAGNOSTIC_ADDR_INDEX (0x0000007f) +#define TX_DIAGNOSTIC_ADDR_DFR (0x40000000) +#define TX_DIAGNOSTIC_ADDR_AI (0x80000000) + +#define reg_TX_DIAGNOSTIC_DATA(base) __REG32(base, 0x00000274) + +#define reg_TX_ERROR_STATUS(base) __REG32(base, 0x00000278) +#define TX_ERROR_STATUS (0x00000278) +#define TX_ERROR_STATUS_QUEUE_0_ERROR_RESPONSE (0x0000000f) +#define TX_ERROR_STATUS_TEA_ON_QUEUE_0 (0x00000010) +#define TX_ERROR_STATUS_RER_ON_QUEUE_0 (0x00000020) +#define TX_ERROR_STATUS_TER_ON_QUEUE_0 (0x00000040) +#define TX_ERROR_STATUS_DER_ON_QUEUE_0 (0x00000080) +#define TX_ERROR_STATUS_QUEUE_1_ERROR_RESPONSE (0x00000f00) +#define TX_ERROR_STATUS_TEA_ON_QUEUE_1 (0x00001000) +#define TX_ERROR_STATUS_RER_ON_QUEUE_1 (0x00002000) +#define TX_ERROR_STATUS_TER_ON_QUEUE_1 (0x00004000) +#define TX_ERROR_STATUS_DER_ON_QUEUE_1 (0x00008000) +#define TX_ERROR_STATUS_QUEUE_2_ERROR_RESPONSE (0x000f0000) +#define TX_ERROR_STATUS_TEA_ON_QUEUE_2 (0x00100000) +#define TX_ERROR_STATUS_RER_ON_QUEUE_2 (0x00200000) +#define TX_ERROR_STATUS_TER_ON_QUEUE_2 (0x00400000) +#define TX_ERROR_STATUS_DER_ON_QUEUE_2 (0x00800000) +#define TX_ERROR_STATUS_QUEUE_3_ERROR_RESPONSE (0x0f000000) +#define TX_ERROR_STATUS_TEA_ON_QUEUE_3 (0x10000000) +#define TX_ERROR_STATUS_RER_ON_QUEUE_3 (0x20000000) +#define TX_ERROR_STATUS_TER_ON_QUEUE_3 (0x40000000) +#define TX_ERROR_STATUS_DER_ON_QUEUE_3 (0x80000000) + +#define reg_TX_QUEUE_0_CONFIG(base) __REG32(base, 0x00000280) +#define TX_QUEUE_0_CONFIG_OCN_PORT (0x0000003f) +#define TX_QUEUE_0_CONFIG_BSWP (0x00000400) +#define TX_QUEUE_0_CONFIG_WSWP (0x00000800) +#define TX_QUEUE_0_CONFIG_AM (0x00004000) +#define TX_QUEUE_0_CONFIG_GVI (0x00008000) +#define TX_QUEUE_0_CONFIG_EEI (0x00010000) +#define TX_QUEUE_0_CONFIG_ELI (0x00020000) +#define TX_QUEUE_0_CONFIG_ENI (0x00040000) +#define TX_QUEUE_0_CONFIG_ESI (0x00080000) +#define TX_QUEUE_0_CONFIG_EDI (0x00100000) + +#define reg_TX_QUEUE_0_BUF_CONFIG(base) __REG32(base, 0x00000284) +#define TX_QUEUE_0_BUF_CONFIG_OCN_PORT (0x0000003f) +#define TX_QUEUE_0_BUF_CONFIG_BURST (0x00000300) +#define TX_QUEUE_0_BUF_CONFIG_BSWP (0x00000400) +#define TX_QUEUE_0_BUF_CONFIG_WSWP (0x00000800) + +#define OCN_PORT_HLP 0 /* HLP Interface */ +#define OCN_PORT_PCI_X 1 /* PCI-X Interface */ +#define OCN_PORT_PROCESSOR_MASTER 2 /* Processor Interface (master) */ +#define OCN_PORT_PROCESSOR_SLAVE 3 /* Processor Interface (slave) */ +#define OCN_PORT_MEMORY 4 /* Memory Controller */ +#define OCN_PORT_DMA 5 /* DMA Controller */ +#define OCN_PORT_ETHERNET 6 /* Ethernet Controller */ +#define OCN_PORT_PRINT 7 /* Print Engine Interface */ + +#define reg_TX_QUEUE_0_PTR_LOW(base) __REG32(base, 0x00000288) + +#define reg_TX_QUEUE_0_PTR_HIGH(base) __REG32(base, 0x0000028c) +#define TX_QUEUE_0_PTR_HIGH_VALID (0x80000000) + +#define reg_RX_CONFIG(base) __REG32(base, 0x00000320) +#define RX_CONFIG_DEF_Q (0x00000003) +#define RX_CONFIG_EMF (0x00000100) +#define RX_CONFIG_EUF (0x00000200) +#define RX_CONFIG_BFE (0x00000400) +#define RX_CONFIG_MFE (0x00000800) +#define RX_CONFIG_UFE (0x00001000) +#define RX_CONFIG_SE (0x00002000) +#define RX_CONFIG_ABF (0x00200000) +#define RX_CONFIG_APE (0x00400000) +#define RX_CONFIG_CHP (0x00800000) +#define RX_CONFIG_RST (0x80000000) + +#define reg_RX_CONTROL(base) __REG32(base, 0x00000324) +#define GE_E0_RX_CONTROL_QUEUE_ENABLES (0x0000000f) +#define GE_E0_RX_CONTROL_GO (0x00008000) +#define GE_E0_RX_CONTROL_EAI (0x20000000) +#define GE_E0_RX_CONTROL_ABT (0x40000000) +#define GE_E0_RX_CONTROL_EII (0x80000000) + +#define reg_RX_EXTENDED_STATUS(base) __REG32(base, 0x0000032c) +#define RX_EXTENDED_STATUS (0x0000032c) +#define RX_EXTENDED_STATUS_EOQ (0x0000000f) +#define RX_EXTENDED_STATUS_EOQ_0 (0x00000001) +#define RX_EXTENDED_STATUS_EOF (0x00000f00) +#define RX_EXTENDED_STATUS_DESCRIPTOR_INTERRUPT_CONDITION (0x000f0000) +#define RX_EXTENDED_STATUS_ERROR_FLAG (0x0f000000) + +#define reg_RX_THRESHOLDS(base) __REG32(base, 0x00000330) + +#define reg_RX_DIAGNOSTIC_ADDR(base) __REG32(base, 0x00000370) +#define RX_DIAGNOSTIC_ADDR_INDEX (0x0000007f) +#define RX_DIAGNOSTIC_ADDR_DFR (0x40000000) +#define RX_DIAGNOSTIC_ADDR_AI (0x80000000) + +#define reg_RX_DIAGNOSTIC_DATA(base) __REG32(base, 0x00000374) + +#define reg_RX_QUEUE_0_CONFIG(base) __REG32(base, 0x00000380) +#define RX_QUEUE_0_CONFIG_OCN_PORT (0x0000003f) +#define RX_QUEUE_0_CONFIG_BSWP (0x00000400) +#define RX_QUEUE_0_CONFIG_WSWP (0x00000800) +#define RX_QUEUE_0_CONFIG_AM (0x00004000) +#define RX_QUEUE_0_CONFIG_EEI (0x00010000) +#define RX_QUEUE_0_CONFIG_ELI (0x00020000) +#define RX_QUEUE_0_CONFIG_ENI (0x00040000) +#define RX_QUEUE_0_CONFIG_ESI (0x00080000) +#define RX_QUEUE_0_CONFIG_EDI (0x00100000) + +#define reg_RX_QUEUE_0_BUF_CONFIG(base) __REG32(base, 0x00000384) +#define RX_QUEUE_0_BUF_CONFIG_OCN_PORT (0x0000003f) +#define RX_QUEUE_0_BUF_CONFIG_BURST (0x00000300) +#define RX_QUEUE_0_BUF_CONFIG_BSWP (0x00000400) +#define RX_QUEUE_0_BUF_CONFIG_WSWP (0x00000800) + +#define reg_RX_QUEUE_0_PTR_LOW(base) __REG32(base, 0x00000388) + +#define reg_RX_QUEUE_0_PTR_HIGH(base) __REG32(base, 0x0000038c) +#define RX_QUEUE_0_PTR_HIGH_VALID (0x80000000) + +/* + * PHY register definitions + */ +/* the first 15 PHY registers are standard. */ +#define PHY_CTRL_REG 0 /* Control Register */ +#define PHY_STATUS_REG 1 /* Status Regiser */ +#define PHY_ID1_REG 2 /* Phy Id Reg (word 1) */ +#define PHY_ID2_REG 3 /* Phy Id Reg (word 2) */ +#define PHY_AN_ADV_REG 4 /* Autoneg Advertisement */ +#define PHY_LP_ABILITY_REG 5 /* Link Partner Ability (Base Page) */ +#define PHY_AUTONEG_EXP_REG 6 /* Autoneg Expansion Reg */ +#define PHY_NEXT_PAGE_TX_REG 7 /* Next Page TX */ +#define PHY_LP_NEXT_PAGE_REG 8 /* Link Partner Next Page */ +#define PHY_1000T_CTRL_REG 9 /* 1000Base-T Control Reg */ +#define PHY_1000T_STATUS_REG 10 /* 1000Base-T Status Reg */ +#define PHY_EXT_STATUS_REG 11 /* Extended Status Reg */ + +/* + * PHY Register bit masks. + */ +#define PHY_CTRL_RESET (1 << 15) +#define PHY_CTRL_LOOPBACK (1 << 14) +#define PHY_CTRL_SPEED0 (1 << 13) +#define PHY_CTRL_AN_EN (1 << 12) +#define PHY_CTRL_PWR_DN (1 << 11) +#define PHY_CTRL_ISOLATE (1 << 10) +#define PHY_CTRL_RESTART_AN (1 << 9) +#define PHY_CTRL_FULL_DUPLEX (1 << 8) +#define PHY_CTRL_CT_EN (1 << 7) +#define PHY_CTRL_SPEED1 (1 << 6) + +#define PHY_STAT_100BASE_T4 (1 << 15) +#define PHY_STAT_100BASE_X_FD (1 << 14) +#define PHY_STAT_100BASE_X_HD (1 << 13) +#define PHY_STAT_10BASE_T_FD (1 << 12) +#define PHY_STAT_10BASE_T_HD (1 << 11) +#define PHY_STAT_100BASE_T2_FD (1 << 10) +#define PHY_STAT_100BASE_T2_HD (1 << 9) +#define PHY_STAT_EXT_STAT (1 << 8) +#define PHY_STAT_RESERVED (1 << 7) +#define PHY_STAT_MFPS (1 << 6) /* Management Frames Preamble Suppression */ +#define PHY_STAT_AN_COMPLETE (1 << 5) +#define PHY_STAT_REM_FAULT (1 << 4) +#define PHY_STAT_AN_CAP (1 << 3) +#define PHY_STAT_LINK_UP (1 << 2) +#define PHY_STAT_JABBER (1 << 1) +#define PHY_STAT_EXT_CAP (1 << 0) + +#define TBI_CONTROL_2 0x11 +#define TBI_CONTROL_2_ENABLE_COMMA_DETECT 0x0001 +#define TBI_CONTROL_2_ENABLE_WRAP 0x0002 +#define TBI_CONTROL_2_G_MII_MODE 0x0010 +#define TBI_CONTROL_2_RECEIVE_CLOCK_SELECT 0x0020 +#define TBI_CONTROL_2_AUTO_NEGOTIATION_SENSE 0x0100 +#define TBI_CONTROL_2_DISABLE_TRANSMIT_RUNNING_DISPARITY 0x1000 +#define TBI_CONTROL_2_DISABLE_RECEIVE_RUNNING_DISPARITY 0x2000 +#define TBI_CONTROL_2_SHORTCUT_LINK_TIMER 0x4000 +#define TBI_CONTROL_2_SOFT_RESET 0x8000 + +/* marvel specific */ +#define MV1111_EXT_CTRL1_REG 16 /* PHY Specific Control Reg */ +#define MV1111_SPEC_STAT_REG 17 /* PHY Specific Status Reg */ +#define MV1111_EXT_CTRL2_REG 20 /* Extended PHY Specific Control Reg */ + +/* + * MARVELL 88E1111 PHY register bit masks + */ +/* PHY Specific Status Register (MV1111_EXT_CTRL1_REG) */ + +#define SPEC_STAT_SPEED_MASK (3 << 14) +#define SPEC_STAT_FULL_DUP (1 << 13) +#define SPEC_STAT_PAGE_RCVD (1 << 12) +#define SPEC_STAT_RESOLVED (1 << 11) /* Speed and Duplex Resolved */ +#define SPEC_STAT_LINK_UP (1 << 10) +#define SPEC_STAT_CABLE_LEN_MASK (7 << 7)/* Cable Length (100/1000 modes only) */ +#define SPEC_STAT_MDIX (1 << 6) +#define SPEC_STAT_POLARITY (1 << 1) +#define SPEC_STAT_JABBER (1 << 0) + +#define SPEED_1000 (2 << 14) +#define SPEED_100 (1 << 14) +#define SPEED_10 (0 << 14) + +#define TBI_ADDR 0x1E /* Ten Bit Interface address */ + +/* negotiated link parameters */ +#define LINK_SPEED_UNKNOWN 0 +#define LINK_SPEED_10 1 +#define LINK_SPEED_100 2 +#define LINK_SPEED_1000 3 + +#define LINK_DUPLEX_UNKNOWN 0 +#define LINK_DUPLEX_HALF 1 +#define LINK_DUPLEX_FULL 2 + +static unsigned int phy_address[] = { 8, 9 }; + +#define vuint32 volatile u32 + +/* TX/RX buffer descriptors. MUST be cache line aligned in memory. (32 byte) + * This structure is accessed by the ethernet DMA engine which means it + * MUST be in LITTLE ENDIAN format */ +struct dma_descriptor { + vuint32 start_addr0; /* buffer address, least significant bytes. */ + vuint32 start_addr1; /* buffer address, most significant bytes. */ + vuint32 next_descr_addr0;/* next descriptor address, least significant bytes. Must be 64-bit aligned. */ + vuint32 next_descr_addr1;/* next descriptor address, most significant bytes. */ + vuint32 vlan_byte_count;/* VLAN tag(top 2 bytes) and byte countt (bottom 2 bytes). */ + vuint32 config_status; /* Configuration/Status. */ + vuint32 reserved1; /* reserved to make the descriptor cache line aligned. */ + vuint32 reserved2; /* reserved to make the descriptor cache line aligned. */ +}; + +/* last next descriptor address flag */ +#define DMA_DESCR_LAST (1 << 31) + +/* TX DMA descriptor config status bits */ +#define DMA_DESCR_TX_EOF (1 << 0) /* end of frame */ +#define DMA_DESCR_TX_SOF (1 << 1) /* start of frame */ +#define DMA_DESCR_TX_PFVLAN (1 << 2) +#define DMA_DESCR_TX_HUGE (1 << 3) +#define DMA_DESCR_TX_PAD (1 << 4) +#define DMA_DESCR_TX_CRC (1 << 5) +#define DMA_DESCR_TX_DESCR_INT (1 << 14) +#define DMA_DESCR_TX_RETRY_COUNT 0x000F0000 +#define DMA_DESCR_TX_ONE_COLLISION (1 << 20) +#define DMA_DESCR_TX_LATE_COLLISION (1 << 24) +#define DMA_DESCR_TX_UNDERRUN (1 << 25) +#define DMA_DESCR_TX_RETRY_LIMIT (1 << 26) +#define DMA_DESCR_TX_OK (1 << 30) +#define DMA_DESCR_TX_OWNER (1 << 31) + +/* RX DMA descriptor status bits */ +#define DMA_DESCR_RX_EOF (1 << 0) +#define DMA_DESCR_RX_SOF (1 << 1) +#define DMA_DESCR_RX_VTF (1 << 2) +#define DMA_DESCR_RX_FRAME_IS_TYPE (1 << 3) +#define DMA_DESCR_RX_SHORT_FRAME (1 << 4) +#define DMA_DESCR_RX_HASH_MATCH (1 << 7) +#define DMA_DESCR_RX_BAD_FRAME (1 << 8) +#define DMA_DESCR_RX_OVERRUN (1 << 9) +#define DMA_DESCR_RX_MAX_FRAME_LEN (1 << 11) +#define DMA_DESCR_RX_CRC_ERROR (1 << 12) +#define DMA_DESCR_RX_DESCR_INT (1 << 13) +#define DMA_DESCR_RX_OWNER (1 << 15) + +#define RX_BUFFER_SIZE PKTSIZE +#define NUM_RX_DESC PKTBUFSRX + +static struct dma_descriptor tx_descriptor __attribute__ ((aligned(32))); + +static struct dma_descriptor rx_descr_array[NUM_RX_DESC] + __attribute__ ((aligned(32))); + +static struct dma_descriptor *rx_descr_current; + +static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis); +static int tsi108_eth_send (struct eth_device *dev, + volatile void *packet, int length); +static int tsi108_eth_recv (struct eth_device *dev); +static void tsi108_eth_halt (struct eth_device *dev); +static unsigned int read_phy (unsigned int base, + unsigned int phy_addr, unsigned int phy_reg); +static void write_phy (unsigned int base, + unsigned int phy_addr, + unsigned int phy_reg, unsigned int phy_data); + +#if TSI108_ETH_DEBUG > 100 +/* + * print phy debug infomation + */ +static void dump_phy_regs (unsigned int phy_addr) +{ + int i; + + printf ("PHY %d registers\n", phy_addr); + for (i = 0; i <= 30; i++) { + printf ("%2d 0x%04x\n", i, read_phy (ETH_BASE, phy_addr, i)); + } + printf ("\n"); + +} +#else +#define dump_phy_regs(base) do{}while(0) +#endif + +#if TSI108_ETH_DEBUG > 100 +/* + * print debug infomation + */ +static void tx_diag_regs (unsigned int base) +{ + int i; + unsigned long dummy; + + printf ("TX diagnostics registers\n"); + reg_TX_DIAGNOSTIC_ADDR(base) = 0x00 | TX_DIAGNOSTIC_ADDR_AI; + udelay (1000); + dummy = reg_TX_DIAGNOSTIC_DATA(base); + for (i = 0x00; i <= 0x05; i++) { + udelay (1000); + printf ("0x%02x 0x%08x\n", i, reg_TX_DIAGNOSTIC_DATA(base)); + } + reg_TX_DIAGNOSTIC_ADDR(base) = 0x40 | TX_DIAGNOSTIC_ADDR_AI; + udelay (1000); + dummy = reg_TX_DIAGNOSTIC_DATA(base); + for (i = 0x40; i <= 0x47; i++) { + udelay (1000); + printf ("0x%02x 0x%08x\n", i, reg_TX_DIAGNOSTIC_DATA(base)); + } + printf ("\n"); + +} +#else +#define tx_diag_regs(base) do{}while(0) +#endif + +#if TSI108_ETH_DEBUG > 100 +/* + * print debug infomation + */ +static void rx_diag_regs (unsigned int base) +{ + int i; + unsigned long dummy; + + printf ("RX diagnostics registers\n"); + reg_RX_DIAGNOSTIC_ADDR(base) = 0x00 | RX_DIAGNOSTIC_ADDR_AI; + udelay (1000); + dummy = reg_RX_DIAGNOSTIC_DATA(base); + for (i = 0x00; i <= 0x05; i++) { + udelay (1000); + printf ("0x%02x 0x%08x\n", i, reg_RX_DIAGNOSTIC_DATA(base)); + } + reg_RX_DIAGNOSTIC_ADDR(base) = 0x40 | RX_DIAGNOSTIC_ADDR_AI; + udelay (1000); + dummy = reg_RX_DIAGNOSTIC_DATA(base); + for (i = 0x08; i <= 0x0a; i++) { + udelay (1000); + printf ("0x%02x 0x%08x\n", i, reg_RX_DIAGNOSTIC_DATA(base)); + } + printf ("\n"); + +} +#else +#define rx_diag_regs(base) do{}while(0) +#endif + +#if TSI108_ETH_DEBUG > 100 +/* + * print debug infomation + */ +static void debug_mii_regs (unsigned int base) +{ + printf ("MII_MGMT_CONFIG 0x%08x\n", reg_MII_MGMT_CONFIG(base)); + printf ("MII_MGMT_COMMAND 0x%08x\n", reg_MII_MGMT_COMMAND(base)); + printf ("MII_MGMT_ADDRESS 0x%08x\n", reg_MII_MGMT_ADDRESS(base)); + printf ("MII_MGMT_CONTROL 0x%08x\n", reg_MII_MGMT_CONTROL(base)); + printf ("MII_MGMT_STATUS 0x%08x\n", reg_MII_MGMT_STATUS(base)); + printf ("MII_MGMT_INDICATORS 0x%08x\n", reg_MII_MGMT_INDICATORS(base)); + printf ("\n"); + +} +#else +#define debug_mii_regs(base) do{}while(0) +#endif + +/* + * Wait until the phy bus is non-busy + */ +static void phy_wait (unsigned int base, unsigned int condition) +{ + int timeout; + + timeout = 0; + while (reg_MII_MGMT_INDICATORS(base) & condition) { + udelay (10); + if (++timeout > 10000) { + printf ("ERROR: timeout waiting for phy bus (%d)\n", + condition); + break; + } + } +} + +/* + * read phy register + */ +static unsigned int read_phy (unsigned int base, + unsigned int phy_addr, unsigned int phy_reg) +{ + unsigned int value; + + phy_wait (base, MII_MGMT_INDICATORS_BUSY); + + reg_MII_MGMT_ADDRESS(base) = (phy_addr << 8) | phy_reg; + + /* Ensure that the Read Cycle bit is cleared prior to next read cycle */ + reg_MII_MGMT_COMMAND(base) = 0; + + /* start the read */ + reg_MII_MGMT_COMMAND(base) = MII_MGMT_COMMAND_READ_CYCLE; + + /* wait for the read to complete */ + phy_wait (base, + MII_MGMT_INDICATORS_NOT_VALID | MII_MGMT_INDICATORS_BUSY); + + value = reg_MII_MGMT_STATUS(base); + + reg_MII_MGMT_COMMAND(base) = 0; + + return value; +} + +/* + * write phy register + */ +static void write_phy (unsigned int base, + unsigned int phy_addr, + unsigned int phy_reg, unsigned int phy_data) +{ + phy_wait (base, MII_MGMT_INDICATORS_BUSY); + + reg_MII_MGMT_ADDRESS(base) = (phy_addr << 8) | phy_reg; + + /* Ensure that the Read Cycle bit is cleared prior to next cycle */ + reg_MII_MGMT_COMMAND(base) = 0; + + /* start the write */ + reg_MII_MGMT_CONTROL(base) = phy_data; +} + +/* + * configure the marvell 88e1111 phy + */ +static int marvell_88e_phy_config (struct eth_device *dev, int *speed, + int *duplex) +{ + unsigned long base; + unsigned long phy_addr; + unsigned int phy_status; + unsigned int phy_spec_status; + int timeout; + int phy_speed; + int phy_duplex; + unsigned int value; + + phy_speed = LINK_SPEED_UNKNOWN; + phy_duplex = LINK_DUPLEX_UNKNOWN; + + base = dev->iobase; + phy_addr = (unsigned long)dev->priv; + + /* Take the PHY out of reset. */ + write_phy (ETH_BASE, phy_addr, PHY_CTRL_REG, PHY_CTRL_RESET); + + /* Wait for the reset process to complete. */ + udelay (10); + timeout = 0; + while ((phy_status = + read_phy (ETH_BASE, phy_addr, PHY_CTRL_REG)) & PHY_CTRL_RESET) { + udelay (10); + if (++timeout > 10000) { + printf ("ERROR: timeout waiting for phy reset\n"); + break; + } + } + + /* TBI Configuration. */ + write_phy (base, TBI_ADDR, TBI_CONTROL_2, TBI_CONTROL_2_G_MII_MODE | + TBI_CONTROL_2_RECEIVE_CLOCK_SELECT); + /* Wait for the link to be established. */ + timeout = 0; + do { + udelay (20000); + phy_status = read_phy (ETH_BASE, phy_addr, PHY_STATUS_REG); + if (++timeout > 100) { + debug_lev(1, "ERROR: unable to establish link!!!\n"); + break; + } + } while ((phy_status & PHY_STAT_LINK_UP) == 0); + + if ((phy_status & PHY_STAT_LINK_UP) == 0) + return 0; + + value = 0; + phy_spec_status = read_phy (ETH_BASE, phy_addr, MV1111_SPEC_STAT_REG); + if (phy_spec_status & SPEC_STAT_RESOLVED) { + switch (phy_spec_status & SPEC_STAT_SPEED_MASK) { + case SPEED_1000: + phy_speed = LINK_SPEED_1000; + value |= PHY_CTRL_SPEED1; + break; + case SPEED_100: + phy_speed = LINK_SPEED_100; + value |= PHY_CTRL_SPEED0; + break; + case SPEED_10: + phy_speed = LINK_SPEED_10; + break; + } + if (phy_spec_status & SPEC_STAT_FULL_DUP) { + phy_duplex = LINK_DUPLEX_FULL; + value |= PHY_CTRL_FULL_DUPLEX; + } else + phy_duplex = LINK_DUPLEX_HALF; + } + /* set TBI speed */ + write_phy (base, TBI_ADDR, PHY_CTRL_REG, value); + write_phy (base, TBI_ADDR, PHY_AN_ADV_REG, 0x0060); + +#if TSI108_ETH_DEBUG > 0 + printf ("%s link is up", dev->name); + phy_spec_status = read_phy (ETH_BASE, phy_addr, MV1111_SPEC_STAT_REG); + if (phy_spec_status & SPEC_STAT_RESOLVED) { + switch (phy_speed) { + case LINK_SPEED_1000: + printf (", 1000 Mbps"); + break; + case LINK_SPEED_100: + printf (", 100 Mbps"); + break; + case LINK_SPEED_10: + printf (", 10 Mbps"); + break; + } + if (phy_duplex == LINK_DUPLEX_FULL) + printf (", Full duplex"); + else + printf (", Half duplex"); + } + printf ("\n"); +#endif + + dump_phy_regs (TBI_ADDR); + if (speed) + *speed = phy_speed; + if (duplex) + *duplex = phy_duplex; + + return 1; +} + +/* + * External interface + * + * register the tsi108 ethernet controllers with the multi-ethernet system + */ +int tsi108_eth_initialize (bd_t * bis) +{ + struct eth_device *dev; + int index; + + for (index = 0; index < CONFIG_TSI108_ETH_NUM_PORTS; index++) { + dev = (struct eth_device *)malloc(sizeof(struct eth_device)); + + sprintf (dev->name, "TSI108_eth%d", index); + + dev->iobase = ETH_BASE + (index * ETH_PORT_OFFSET); + dev->priv = (void *)(phy_address[index]); + dev->init = tsi108_eth_probe; + dev->halt = tsi108_eth_halt; + dev->send = tsi108_eth_send; + dev->recv = tsi108_eth_recv; + + eth_register(dev); + } + return index; +} + +/* + * probe for and initialize a single ethernet interface + */ +static int tsi108_eth_probe (struct eth_device *dev, bd_t * bis) +{ + unsigned long base; + unsigned long value; + int index; + struct dma_descriptor *tx_descr; + struct dma_descriptor *rx_descr; + int speed; + int duplex; + + base = dev->iobase; + + reg_PORT_CONTROL(base) = PORT_CONTROL_STE | PORT_CONTROL_BPT; + + /* Bring DMA/FIFO out of reset. */ + reg_TX_CONFIG(base) = 0x00000000; + reg_RX_CONFIG(base) = 0x00000000; + + reg_TX_THRESHOLDS(base) = (192 << 16) | 192; + reg_RX_THRESHOLDS(base) = (192 << 16) | 112; + + /* Bring MAC out of reset. */ + reg_MAC_CONFIG_1(base) = 0x00000000; + + /* DMA MAC configuration. */ + reg_MAC_CONFIG_1(base) = + MAC_CONFIG_1_RX_ENABLE | MAC_CONFIG_1_TX_ENABLE; + + reg_MII_MGMT_CONFIG(base) = MII_MGMT_CONFIG_NO_PREAMBLE; + reg_MAXIMUM_FRAME_LENGTH(base) = RX_BUFFER_SIZE; + + /* Note: Early tsi108 manual did not have correct byte order + * for the station address.*/ + reg_STATION_ADDRESS_1(base) = (dev->enetaddr[5] << 24) | + (dev->enetaddr[4] << 16) | + (dev->enetaddr[3] << 8) | (dev->enetaddr[2] << 0); + + reg_STATION_ADDRESS_2(base) = (dev->enetaddr[1] << 24) | + (dev->enetaddr[0] << 16); + + if (marvell_88e_phy_config(dev, &speed, &duplex) == 0) + return 0; + + value = + MAC_CONFIG_2_PREAMBLE_LENGTH(7) | MAC_CONFIG_2_PAD_CRC | + MAC_CONFIG_2_CRC_ENABLE; + if (speed == LINK_SPEED_1000) + value |= MAC_CONFIG_2_INTERFACE_MODE(INTERFACE_MODE_BYTE); + else { + value |= MAC_CONFIG_2_INTERFACE_MODE(INTERFACE_MODE_NIBBLE); + reg_PORT_CONTROL(base) |= PORT_CONTROL_SPD; + } + if (duplex == LINK_DUPLEX_FULL) { + value |= MAC_CONFIG_2_FULL_DUPLEX; + reg_PORT_CONTROL(base) &= ~PORT_CONTROL_BPT; + } else + reg_PORT_CONTROL(base) |= PORT_CONTROL_BPT; + reg_MAC_CONFIG_2(base) = value; + + reg_RX_CONFIG(base) = RX_CONFIG_SE; + reg_RX_QUEUE_0_CONFIG(base) = OCN_PORT_MEMORY; + reg_RX_QUEUE_0_BUF_CONFIG(base) = OCN_PORT_MEMORY; + + /* initialize the RX DMA descriptors */ + rx_descr = &rx_descr_array[0]; + rx_descr_current = rx_descr; + for (index = 0; index < NUM_RX_DESC; index++) { + /* make sure the receive buffers are not in cache */ + invalidate_dcache_range((unsigned long)NetRxPackets[index], + (unsigned long)NetRxPackets[index] + + RX_BUFFER_SIZE); + rx_descr->start_addr0 = + cpu_to_le32((vuint32) NetRxPackets[index]); + rx_descr->start_addr1 = 0; + rx_descr->next_descr_addr0 = + cpu_to_le32((vuint32) (rx_descr + 1)); + rx_descr->next_descr_addr1 = 0; + rx_descr->vlan_byte_count = 0; + rx_descr->config_status = cpu_to_le32((RX_BUFFER_SIZE << 16) | + DMA_DESCR_RX_OWNER); + rx_descr++; + } + rx_descr--; + rx_descr->next_descr_addr0 = 0; + rx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST); + /* Push the descriptors to RAM so the ethernet DMA can see them */ + invalidate_dcache_range((unsigned long)rx_descr_array, + (unsigned long)rx_descr_array + + sizeof(rx_descr_array)); + + /* enable RX queue */ + reg_RX_CONTROL(base) = TX_CONTROL_GO | 0x01; + reg_RX_QUEUE_0_PTR_LOW(base) = (u32) rx_descr_current; + /* enable receive DMA */ + reg_RX_QUEUE_0_PTR_HIGH(base) = RX_QUEUE_0_PTR_HIGH_VALID; + + reg_TX_QUEUE_0_CONFIG(base) = OCN_PORT_MEMORY; + reg_TX_QUEUE_0_BUF_CONFIG(base) = OCN_PORT_MEMORY; + + /* initialize the TX DMA descriptor */ + tx_descr = &tx_descriptor; + + tx_descr->start_addr0 = 0; + tx_descr->start_addr1 = 0; + tx_descr->next_descr_addr0 = 0; + tx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST); + tx_descr->vlan_byte_count = 0; + tx_descr->config_status = cpu_to_le32(DMA_DESCR_TX_OK | + DMA_DESCR_TX_SOF | + DMA_DESCR_TX_EOF); + /* enable TX queue */ + reg_TX_CONTROL(base) = TX_CONTROL_GO | 0x01; + + return 1; +} + +/* + * send a packet + */ +static int tsi108_eth_send (struct eth_device *dev, + volatile void *packet, int length) +{ + unsigned long base; + int timeout; + struct dma_descriptor *tx_descr; + unsigned long status; + + base = dev->iobase; + tx_descr = &tx_descriptor; + + /* Wait until the last packet has been transmitted. */ + timeout = 0; + do { + /* make sure we see the changes made by the DMA engine */ + invalidate_dcache_range((unsigned long)tx_descr, + (unsigned long)tx_descr + + sizeof(struct dma_descriptor)); + + if (timeout != 0) + udelay (15); + if (++timeout > 10000) { + tx_diag_regs(base); + debug_lev(1, + "ERROR: timeout waiting for last transmit packet to be sent\n"); + return 0; + } + } while (tx_descr->config_status & cpu_to_le32(DMA_DESCR_TX_OWNER)); + + status = le32_to_cpu(tx_descr->config_status); + if ((status & DMA_DESCR_TX_OK) == 0) { +#ifdef TX_PRINT_ERRORS + printf ("TX packet error: 0x%08x\n %s%s%s%s\n", status, + status & DMA_DESCR_TX_OK ? "tx error, " : "", + status & DMA_DESCR_TX_RETRY_LIMIT ? + "retry limit reached, " : "", + status & DMA_DESCR_TX_UNDERRUN ? "underrun, " : "", + status & DMA_DESCR_TX_LATE_COLLISION ? "late collision, " + : ""); +#endif + } + + debug_lev (9, "sending packet %d\n", length); + tx_descr->start_addr0 = cpu_to_le32((vuint32) packet); + tx_descr->start_addr1 = 0; + tx_descr->next_descr_addr0 = 0; + tx_descr->next_descr_addr1 = cpu_to_le32(DMA_DESCR_LAST); + tx_descr->vlan_byte_count = cpu_to_le32(length); + tx_descr->config_status = cpu_to_le32(DMA_DESCR_TX_OWNER | + DMA_DESCR_TX_CRC | + DMA_DESCR_TX_PAD | + DMA_DESCR_TX_SOF | + DMA_DESCR_TX_EOF); + + invalidate_dcache_range((unsigned long)tx_descr, + (unsigned long)tx_descr + + sizeof(struct dma_descriptor)); + + invalidate_dcache_range((unsigned long)packet, + (unsigned long)packet + length); + + reg_TX_QUEUE_0_PTR_LOW(base) = (u32) tx_descr; + reg_TX_QUEUE_0_PTR_HIGH(base) = TX_QUEUE_0_PTR_HIGH_VALID; + + return length; +} + +/* + * Check for received packets and send them up the protocal stack + */ +static int tsi108_eth_recv (struct eth_device *dev) +{ + struct dma_descriptor *rx_descr; + unsigned long base; + int length = 0; + unsigned long status; + volatile uchar *buffer; + + base = dev->iobase; + + /* make sure we see the changes made by the DMA engine */ + invalidate_dcache_range ((unsigned long)rx_descr_array, + (unsigned long)rx_descr_array + + sizeof(rx_descr_array)); + + /* process all of the received packets */ + rx_descr = rx_descr_current; + while ((rx_descr->config_status & cpu_to_le32(DMA_DESCR_RX_OWNER)) == 0) { + /* check for error */ + status = le32_to_cpu(rx_descr->config_status); + if (status & DMA_DESCR_RX_BAD_FRAME) { +#ifdef RX_PRINT_ERRORS + printf ("RX packet error: 0x%08x\n %s%s%s%s%s%s\n", + status, + status & DMA_DESCR_RX_FRAME_IS_TYPE ? "too big, " + : "", + status & DMA_DESCR_RX_SHORT_FRAME ? "too short, " + : "", + status & DMA_DESCR_RX_BAD_FRAME ? "bad frame, " : + "", + status & DMA_DESCR_RX_OVERRUN ? "overrun, " : "", + status & DMA_DESCR_RX_MAX_FRAME_LEN ? + "max length, " : "", + status & DMA_DESCR_RX_CRC_ERROR ? "CRC error, " : + ""); +#endif + } else { + length = + le32_to_cpu(rx_descr->vlan_byte_count) & 0xFFFF; + + /*** process packet ***/ + buffer = + (volatile uchar + *)(le32_to_cpu (rx_descr->start_addr0)); + NetReceive (buffer, length); + + invalidate_dcache_range ((unsigned long)buffer, + (unsigned long)buffer + + RX_BUFFER_SIZE); + } + /* Give this buffer back to the DMA engine */ + rx_descr->vlan_byte_count = 0; + rx_descr->config_status = cpu_to_le32 ((RX_BUFFER_SIZE << 16) | + DMA_DESCR_RX_OWNER); + /* move descriptor pointer forward */ + rx_descr = + (struct dma_descriptor + *)(le32_to_cpu (rx_descr->next_descr_addr0)); + if (rx_descr == 0) + rx_descr = &rx_descr_array[0]; + } + /* remember where we are for next time */ + rx_descr_current = rx_descr; + + /* If the DMA engine has reached the end of the queue + * start over at the begining */ + if (reg_RX_EXTENDED_STATUS(base) & RX_EXTENDED_STATUS_EOQ_0) { + + reg_RX_EXTENDED_STATUS(base) = RX_EXTENDED_STATUS_EOQ_0; + reg_RX_QUEUE_0_PTR_LOW(base) = (u32) & rx_descr_array[0]; + reg_RX_QUEUE_0_PTR_HIGH(base) = RX_QUEUE_0_PTR_HIGH_VALID; + } + + return length; +} + +/* + * disable an ethernet interface + */ +static void tsi108_eth_halt (struct eth_device *dev) +{ + unsigned long base; + + base = dev->iobase; + + /* Put DMA/FIFO into reset state. */ + reg_TX_CONFIG(base) = TX_CONFIG_RST; + reg_RX_CONFIG(base) = RX_CONFIG_RST; + + /* Put MAC into reset state. */ + reg_MAC_CONFIG_1(base) = MAC_CONFIG_1_SOFT_RESET; +} + +#endif diff --git a/drivers/tsi108_i2c.c b/drivers/tsi108_i2c.c new file mode 100644 index 0000000..c100cb8 --- /dev/null +++ b/drivers/tsi108_i2c.c @@ -0,0 +1,298 @@ +/* + * (C) Copyright 2004 Tundra Semiconductor Corp. + * Author: Alex Bounine + * + * 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 <config.h> +#include <common.h> + +#ifdef CONFIG_TSI108_I2C +#include <tsi108.h> + +#if (CONFIG_COMMANDS & CFG_CMD_I2C) + +#define I2C_DELAY 100000 +#undef DEBUG_I2C + +#ifdef DEBUG_I2C +#define DPRINT(x) printf (x) +#else +#define DPRINT(x) +#endif + +/* All functions assume that Tsi108 I2C block is the only master on the bus */ +/* I2C read helper function */ + +static int i2c_read_byte ( + uint i2c_chan, /* I2C channel number: 0 - main, 1 - SDC SPD */ + uchar chip_addr,/* I2C device address on the bus */ + uint byte_addr, /* Byte address within I2C device */ + uchar * buffer /* pointer to data buffer */ + ) +{ + u32 temp; + u32 to_count = I2C_DELAY; + u32 op_status = TSI108_I2C_TIMEOUT_ERR; + u32 chan_offset = TSI108_I2C_OFFSET; + + DPRINT (("I2C read_byte() %d 0x%02x 0x%02x\n", + i2c_chan, chip_addr, byte_addr)); + + if (0 != i2c_chan) + chan_offset = TSI108_I2C_SDRAM_OFFSET; + + /* Check if I2C operation is in progress */ + temp = *(u32 *) (CFG_TSI108_CSR_BASE + chan_offset + I2C_CNTRL2); + + if (0 == (temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_WR_STATUS | + I2C_CNTRL2_START))) { + /* Set device address and operation (read = 0) */ + temp = (byte_addr << 16) | ((chip_addr & 0x07) << 8) | + ((chip_addr >> 3) & 0x0F); + *(u32 *) (CFG_TSI108_CSR_BASE + chan_offset + I2C_CNTRL1) = + temp; + + /* Issue the read command + * (at this moment all other parameters are 0 + * (size = 1 byte, lane = 0) + */ + + *(u32 *) (CFG_TSI108_CSR_BASE + chan_offset + I2C_CNTRL2) = + (I2C_CNTRL2_START); + + /* Wait until operation completed */ + do { + /* Read I2C operation status */ + temp = + *(u32 *) (CFG_TSI108_CSR_BASE + chan_offset + + I2C_CNTRL2); + + if (0 == + (temp & (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_START))) + { + if (0 == + (temp & + (I2C_CNTRL2_I2C_CFGERR | + I2C_CNTRL2_I2C_TO_ERR)) + ) { + op_status = TSI108_I2C_SUCCESS; + + temp = *(u32 *) (CFG_TSI108_CSR_BASE + + chan_offset + + I2C_RD_DATA); + + *buffer = (u8) (temp & 0xFF); + } else { + /* report HW error */ + op_status = TSI108_I2C_IF_ERROR; + + DPRINT (("I2C HW error reported: 0x%02x\n", temp)); + } + + break; + } + } while (to_count--); + } else { + op_status = TSI108_I2C_IF_BUSY; + + DPRINT (("I2C Transaction start failed: 0x%02x\n", temp)); + } + + DPRINT (("I2C read_byte() status: 0x%02x\n", op_status)); + return op_status; +} + +/* + * I2C Read interface as defined in "include/i2c.h" : + * chip_addr: I2C chip address, range 0..127 + * (to read from SPD channel EEPROM use (0xD0 ... 0xD7) + * NOTE: The bit 7 in the chip_addr serves as a channel select. + * This hack is for enabling "isdram" command on Tsi108 boards + * without changes to common code. Used for I2C reads only. + * byte_addr: Memory or register address within the chip + * alen: Number of bytes to use for addr (typically 1, 2 for larger + * memories, 0 for register type devices with only one + * register) + * buffer: Pointer to destination buffer for data to be read + * len: How many bytes to read + * + * Returns: 0 on success, not 0 on failure + */ + +int i2c_read (uchar chip_addr, uint byte_addr, int alen, + uchar * buffer, int len) +{ + u32 op_status = TSI108_I2C_PARAM_ERR; + u32 i2c_if = 0; + + /* Hack to support second (SPD) I2C controller (SPD EEPROM read only).*/ + if (0xD0 == (chip_addr & ~0x07)) { + i2c_if = 1; + chip_addr &= 0x7F; + } + /* Check for valid I2C address */ + if (chip_addr <= 0x7F && (byte_addr + len) <= (0x01 << (alen * 8))) { + while (len--) { + op_status = + i2c_read_byte(i2c_if, chip_addr, byte_addr++, + buffer++); + + if (TSI108_I2C_SUCCESS != op_status) { + DPRINT (("I2C read_byte() failed: 0x%02x (%d left)\n", op_status, len)); + + break; + } + } + } + + DPRINT (("I2C read() status: 0x%02x\n", op_status)); + return op_status; +} + +/* I2C write helper function */ + +static int i2c_write_byte (uchar chip_addr,/* I2C device address on the bus */ + uint byte_addr, /* Byte address within I2C device */ + uchar * buffer /* pointer to data buffer */ + ) +{ + u32 temp; + u32 to_count = I2C_DELAY; + u32 op_status = TSI108_I2C_TIMEOUT_ERR; + + /* Check if I2C operation is in progress */ + temp = *(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET + I2C_CNTRL2); + + if (0 == + (temp & + (I2C_CNTRL2_RD_STATUS | I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START))) + { + /* Place data into the I2C Tx Register */ + *(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET + + I2C_TX_DATA) = (u32) * buffer; + + /* Set device address and operation */ + temp = + I2C_CNTRL1_I2CWRITE | (byte_addr << 16) | + ((chip_addr & 0x07) << 8) | ((chip_addr >> 3) & 0x0F); + *(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET + + I2C_CNTRL1) = temp; + + /* Issue the write command (at this moment all other parameters + * are 0 (size = 1 byte, lane = 0) + */ + + *(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET + + I2C_CNTRL2) = (I2C_CNTRL2_START); + + op_status = TSI108_I2C_TIMEOUT_ERR; + + /* Wait until operation completed */ + do { + /* Read I2C operation status */ + temp = + *(u32 *) (CFG_TSI108_CSR_BASE + TSI108_I2C_OFFSET + + I2C_CNTRL2); + + if (0 == + (temp & (I2C_CNTRL2_WR_STATUS | I2C_CNTRL2_START))) + { + if (0 == + (temp & + (I2C_CNTRL2_I2C_CFGERR | + I2C_CNTRL2_I2C_TO_ERR))) { + op_status = TSI108_I2C_SUCCESS; + } else { + /* report detected HW error */ + op_status = TSI108_I2C_IF_ERROR; + + DPRINT (("I2C HW error reported: 0x%02x\n", temp)); + } + + break; + } + + } while (to_count--); + } else { + op_status = TSI108_I2C_IF_BUSY; + + DPRINT (("I2C Transaction start failed: 0x%02x\n", temp)); + } + + return op_status; +} + +/* + * I2C Write interface as defined in "include/i2c.h" : + * chip_addr: I2C chip address, range 0..127 + * byte_addr: Memory or register address within the chip + * alen: Number of bytes to use for addr (typically 1, 2 for larger + * memories, 0 for register type devices with only one + * register) + * buffer: Pointer to data to be written + * len: How many bytes to write + * + * Returns: 0 on success, not 0 on failure + */ + +int i2c_write (uchar chip_addr, uint byte_addr, int alen, uchar * buffer, + int len) +{ + u32 op_status = TSI108_I2C_PARAM_ERR; + + /* Check for valid I2C address */ + if (chip_addr <= 0x7F && (byte_addr + len) <= (0x01 << (alen * 8))) { + while (len--) { + op_status = + i2c_write_byte (chip_addr, byte_addr++, buffer++); + + if (TSI108_I2C_SUCCESS != op_status) { + DPRINT (("I2C write_byte() failed: 0x%02x (%d left)\n", op_status, len)); + + break; + } + } + } + + return op_status; +} + +/* + * I2C interface function as defined in "include/i2c.h". + * Probe the given I2C chip address by reading single byte from offset 0. + * Returns 0 if a chip responded, not 0 on failure. + */ + +int i2c_probe (uchar chip) +{ + u32 tmp; + + /* + * Try to read the first location of the chip. + * The Tsi108 HW doesn't support sending just the chip address + * and checkong for an <ACK> back. + */ + return i2c_read (chip, 0, 1, (char *)&tmp, 1); +} + +#endif /* (CONFIG_COMMANDS & CFG_CMD_I2C) */ +#endif /* CONFIG_TSI108_I2C */ diff --git a/drivers/tsi108_pci.c b/drivers/tsi108_pci.c new file mode 100644 index 0000000..9f606df --- /dev/null +++ b/drivers/tsi108_pci.c @@ -0,0 +1,178 @@ +/* + * (C) Copyright 2004 Tundra Semiconductor Corp. + * Alex Bounine <alexandreb@tundra.com> + * + * 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 + */ + +/* + * PCI initialisation for the Tsi108 EMU board. + */ + +#include <config.h> + +#ifdef CONFIG_TSI108_PCI + +#include <common.h> +#include <pci.h> +#include <asm/io.h> +#include <tsi108.h> + +struct pci_controller local_hose; + +void tsi108_clear_pci_error (void) +{ + u32 err_stat, err_addr, pci_stat; + + /* + * Quietly clear errors signalled as result of PCI/X configuration read + * requests. + */ + /* Read PB Error Log Registers */ + err_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_ERRCS); + err_addr = *(volatile u32 *)(CFG_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_AERR); + if (err_stat & PB_ERRCS_ES) { + /* Clear PCI/X bus errors if applicable */ + if ((err_addr & 0xFF000000) == CFG_PCI_CFG_BASE) { + /* Clear error flag */ + *(u32 *) (CFG_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_ERRCS) = + PB_ERRCS_ES; + + /* Clear read error reported in PB_ISR */ + *(u32 *) (CFG_TSI108_CSR_BASE + + TSI108_PB_REG_OFFSET + PB_ISR) = + PB_ISR_PBS_RD_ERR; + + /* Clear errors reported by PCI CSR (Normally Master Abort) */ + pci_stat = *(volatile u32 *)(CFG_TSI108_CSR_BASE + + TSI108_PCI_REG_OFFSET + + PCI_CSR); + *(volatile u32 *)(CFG_TSI108_CSR_BASE + + TSI108_PCI_REG_OFFSET + PCI_CSR) = + pci_stat; + + *(volatile u32 *)(CFG_TSI108_CSR_BASE + + TSI108_PCI_REG_OFFSET + + PCI_IRP_STAT) = PCI_IRP_STAT_P_CSR; + } + } + + return; +} + +unsigned int __get_pci_config_dword (u32 addr) +{ + unsigned int retval; + + __asm__ __volatile__ (" lwbrx %0,0,%1\n" + "1: eieio\n" + "2:\n" + ".section .fixup,\"ax\"\n" + "3: li %0,-1\n" + " b 2b\n" + ".section __ex_table,\"a\"\n" + " .align 2\n" + " .long 1b,3b\n" + ".text":"=r"(retval):"r"(addr)); + + return (retval); +} + +static int tsi108_read_config_dword (struct pci_controller *hose, + pci_dev_t dev, int offset, u32 * value) +{ + dev &= (CFG_PCI_CFG_SIZE - 1); + dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc)); + *value = __get_pci_config_dword(dev); + if (0xFFFFFFFF == *value) + tsi108_clear_pci_error (); + return 0; +} + +static int tsi108_write_config_dword (struct pci_controller *hose, + pci_dev_t dev, int offset, u32 value) +{ + dev &= (CFG_PCI_CFG_SIZE - 1); + dev |= (CFG_PCI_CFG_BASE | (offset & 0xfc)); + + out_le32 ((volatile unsigned *)dev, value); + + return 0; +} + +void pci_init_board (void) +{ + struct pci_controller *hose = (struct pci_controller *)&local_hose; + + hose->first_busno = 0; + hose->last_busno = 0xff; + + pci_set_region (hose->regions + 0, + CFG_PCI_MEMORY_BUS, + CFG_PCI_MEMORY_PHYS, + CFG_PCI_MEMORY_SIZE, PCI_REGION_MEM | PCI_REGION_MEMORY); + + /* PCI memory space */ + pci_set_region (hose->regions + 1, + CFG_PCI_MEM_BUS, + CFG_PCI_MEM_PHYS, CFG_PCI_MEM_SIZE, PCI_REGION_MEM); + + /* PCI I/O space */ + pci_set_region (hose->regions + 2, + CFG_PCI_IO_BUS, + CFG_PCI_IO_PHYS, CFG_PCI_IO_SIZE, PCI_REGION_IO); + + hose->region_count = 3; + + pci_set_ops (hose, + pci_hose_read_config_byte_via_dword, + pci_hose_read_config_word_via_dword, + tsi108_read_config_dword, + pci_hose_write_config_byte_via_dword, + pci_hose_write_config_word_via_dword, + tsi108_write_config_dword); + + pci_register_hose (hose); + + hose->last_busno = pci_hose_scan (hose); + + debug ("Done PCI initialization\n"); + return; +} + +#ifdef CONFIG_OF_FLAT_TREE +void +ft_pci_setup (void *blob, bd_t *bd) +{ + u32 *p; + int len; + + p = (u32 *)ft_get_prop (blob, "/" OF_TSI "/pci@1000/bus-range", &len); + if (p != NULL) { + p[0] = local_hose.first_busno; + p[1] = local_hose.last_busno; + } + +} +#endif + +#endif /* CONFIG_TSI108_PCI */ |