Tom Rini | 10e4779 | 2018-05-06 17:58:06 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 2 | |
Marek Vasut | 992af7d | 2020-07-08 06:31:54 +0200 | [diff] [blame] | 3 | #include <asm/io.h> |
Hanyuan Zhao | b618201 | 2024-08-09 16:56:57 +0800 | [diff] [blame] | 4 | #include <cpu_func.h> |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 5 | #include <dm.h> |
Simon Glass | eac1bb3 | 2025-05-15 17:31:49 -0600 | [diff] [blame] | 6 | #include <env.h> |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 7 | #include <malloc.h> |
| 8 | #include <net.h> |
Ben Warren | 840f8a5 | 2008-08-31 10:45:44 -0700 | [diff] [blame] | 9 | #include <netdev.h> |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 10 | #include <pci.h> |
Simon Glass | 4dcacfc | 2020-05-10 11:40:13 -0600 | [diff] [blame] | 11 | #include <linux/bitops.h> |
Simon Glass | dbd7954 | 2020-05-10 11:40:11 -0600 | [diff] [blame] | 12 | #include <linux/delay.h> |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 13 | |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 14 | #define SROM_DLEVEL 0 |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 15 | |
Marek Vasut | 81d10f7 | 2020-04-19 03:09:26 +0200 | [diff] [blame] | 16 | /* PCI Registers. */ |
| 17 | #define PCI_CFDA_PSM 0x43 |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 18 | |
| 19 | #define CFRV_RN 0x000000f0 /* Revision Number */ |
| 20 | |
| 21 | #define WAKEUP 0x00 /* Power Saving Wakeup */ |
| 22 | #define SLEEP 0x80 /* Power Saving Sleep Mode */ |
| 23 | |
Marek Vasut | 81d10f7 | 2020-04-19 03:09:26 +0200 | [diff] [blame] | 24 | #define DC2114x_BRK 0x0020 /* CFRV break between DC21142 & DC21143 */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 25 | |
Marek Vasut | 81d10f7 | 2020-04-19 03:09:26 +0200 | [diff] [blame] | 26 | /* Ethernet chip registers. */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 27 | #define DE4X5_BMR 0x000 /* Bus Mode Register */ |
| 28 | #define DE4X5_TPD 0x008 /* Transmit Poll Demand Reg */ |
| 29 | #define DE4X5_RRBA 0x018 /* RX Ring Base Address Reg */ |
| 30 | #define DE4X5_TRBA 0x020 /* TX Ring Base Address Reg */ |
| 31 | #define DE4X5_STS 0x028 /* Status Register */ |
| 32 | #define DE4X5_OMR 0x030 /* Operation Mode Register */ |
| 33 | #define DE4X5_SICR 0x068 /* SIA Connectivity Register */ |
| 34 | #define DE4X5_APROM 0x048 /* Ethernet Address PROM */ |
| 35 | |
Marek Vasut | 81d10f7 | 2020-04-19 03:09:26 +0200 | [diff] [blame] | 36 | /* Register bits. */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 37 | #define BMR_SWR 0x00000001 /* Software Reset */ |
| 38 | #define STS_TS 0x00700000 /* Transmit Process State */ |
| 39 | #define STS_RS 0x000e0000 /* Receive Process State */ |
| 40 | #define OMR_ST 0x00002000 /* Start/Stop Transmission Command */ |
| 41 | #define OMR_SR 0x00000002 /* Start/Stop Receive */ |
| 42 | #define OMR_PS 0x00040000 /* Port Select */ |
| 43 | #define OMR_SDP 0x02000000 /* SD Polarity - MUST BE ASSERTED */ |
| 44 | #define OMR_PM 0x00000080 /* Pass All Multicast */ |
| 45 | |
Marek Vasut | 81d10f7 | 2020-04-19 03:09:26 +0200 | [diff] [blame] | 46 | /* Descriptor bits. */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 47 | #define R_OWN 0x80000000 /* Own Bit */ |
| 48 | #define RD_RER 0x02000000 /* Receive End Of Ring */ |
| 49 | #define RD_LS 0x00000100 /* Last Descriptor */ |
| 50 | #define RD_ES 0x00008000 /* Error Summary */ |
| 51 | #define TD_TER 0x02000000 /* Transmit End Of Ring */ |
| 52 | #define T_OWN 0x80000000 /* Own Bit */ |
| 53 | #define TD_LS 0x40000000 /* Last Segment */ |
| 54 | #define TD_FS 0x20000000 /* First Segment */ |
| 55 | #define TD_ES 0x00008000 /* Error Summary */ |
| 56 | #define TD_SET 0x08000000 /* Setup Packet */ |
| 57 | |
| 58 | /* The EEPROM commands include the alway-set leading bit. */ |
| 59 | #define SROM_WRITE_CMD 5 |
| 60 | #define SROM_READ_CMD 6 |
| 61 | #define SROM_ERASE_CMD 7 |
| 62 | |
Marek Vasut | 81d10f7 | 2020-04-19 03:09:26 +0200 | [diff] [blame] | 63 | #define SROM_HWADD 0x0014 /* Hardware Address offset in SROM */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 64 | #define SROM_RD 0x00004000 /* Read from Boot ROM */ |
Marek Vasut | 81d10f7 | 2020-04-19 03:09:26 +0200 | [diff] [blame] | 65 | #define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ |
| 66 | #define EE_WRITE_0 0x4801 |
| 67 | #define EE_WRITE_1 0x4805 |
| 68 | #define EE_DATA_READ 0x08 /* EEPROM chip data out. */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 69 | #define SROM_SR 0x00000800 /* Select Serial ROM when set */ |
| 70 | |
| 71 | #define DT_IN 0x00000004 /* Serial Data In */ |
| 72 | #define DT_CLK 0x00000002 /* Serial ROM Clock */ |
| 73 | #define DT_CS 0x00000001 /* Serial ROM Chip Select */ |
| 74 | |
| 75 | #define POLL_DEMAND 1 |
| 76 | |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 77 | #if CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
| 78 | #define phys_to_bus(dev, a) virt_to_phys((volatile const void *)(a)) |
| 79 | #else |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 80 | #define phys_to_bus(dev, a) dm_pci_phys_to_mem((dev), (a)) |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 81 | #endif |
Hanyuan Zhao | 4e4e1b9 | 2024-08-09 16:57:00 +0800 | [diff] [blame] | 82 | |
| 83 | /* Number of TX descriptors */ |
| 84 | #if CONFIG_IS_ENABLED(TULIP_MULTIPLE_TX_DESC) |
| 85 | #define NUM_TX_DESC 4 |
| 86 | #else |
| 87 | #define NUM_TX_DESC 1 |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 88 | #endif |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 89 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 90 | #define NUM_RX_DESC PKTBUFSRX |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 91 | #define RX_BUFF_SZ PKTSIZE_ALIGN |
| 92 | |
| 93 | #define TOUT_LOOP 1000000 |
| 94 | |
| 95 | #define SETUP_FRAME_LEN 192 |
| 96 | |
| 97 | struct de4x5_desc { |
| 98 | volatile s32 status; |
| 99 | u32 des1; |
| 100 | u32 buf; |
| 101 | u32 next; |
| 102 | }; |
| 103 | |
Hanyuan Zhao | b618201 | 2024-08-09 16:56:57 +0800 | [diff] [blame] | 104 | /* Assigned for network card's ring buffer: |
| 105 | * Some CPU might treat these memories as cached, and changes to these memories |
| 106 | * won't immediately be visible to each other. It is necessary to ensure that |
| 107 | * these memories between the CPU and the network card are marked as uncached. |
| 108 | */ |
| 109 | static struct de4x5_desc rx_ring[NUM_RX_DESC] __aligned(32); |
| 110 | static struct de4x5_desc tx_ring[NUM_TX_DESC] __aligned(32); |
| 111 | |
Marek Vasut | a3f8908 | 2020-07-08 06:42:07 +0200 | [diff] [blame] | 112 | struct dc2114x_priv { |
Hanyuan Zhao | b618201 | 2024-08-09 16:56:57 +0800 | [diff] [blame] | 113 | struct de4x5_desc *rx_ring; /* Must be uncached to CPU */ |
| 114 | struct de4x5_desc *tx_ring; /* Must be uncached to CPU */ |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 115 | int rx_new; /* RX descriptor ring pointer */ |
| 116 | int tx_new; /* TX descriptor ring pointer */ |
| 117 | char rx_ring_size; |
| 118 | char tx_ring_size; |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 119 | struct udevice *devno; |
Marek Vasut | a3f8908 | 2020-07-08 06:42:07 +0200 | [diff] [blame] | 120 | char *name; |
| 121 | void __iomem *iobase; |
| 122 | u8 *enetaddr; |
| 123 | }; |
| 124 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 125 | /* RX and TX descriptor ring */ |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 126 | static u32 dc2114x_inl(struct dc2114x_priv *priv, u32 addr) |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 127 | { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 128 | return le32_to_cpu(readl(priv->iobase + addr)); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 129 | } |
| 130 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 131 | static void dc2114x_outl(struct dc2114x_priv *priv, u32 command, u32 addr) |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 132 | { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 133 | writel(cpu_to_le32(command), priv->iobase + addr); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 134 | } |
| 135 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 136 | static void reset_de4x5(struct dc2114x_priv *priv) |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 137 | { |
Marek Vasut | f02b701 | 2020-04-19 03:40:03 +0200 | [diff] [blame] | 138 | u32 i; |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 139 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 140 | i = dc2114x_inl(priv, DE4X5_BMR); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 141 | mdelay(1); |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 142 | dc2114x_outl(priv, i | BMR_SWR, DE4X5_BMR); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 143 | mdelay(1); |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 144 | dc2114x_outl(priv, i, DE4X5_BMR); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 145 | mdelay(1); |
| 146 | |
| 147 | for (i = 0; i < 5; i++) { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 148 | dc2114x_inl(priv, DE4X5_BMR); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 149 | mdelay(10); |
| 150 | } |
| 151 | |
| 152 | mdelay(1); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 153 | } |
| 154 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 155 | static void start_de4x5(struct dc2114x_priv *priv) |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 156 | { |
Marek Vasut | f02b701 | 2020-04-19 03:40:03 +0200 | [diff] [blame] | 157 | u32 omr; |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 158 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 159 | omr = dc2114x_inl(priv, DE4X5_OMR); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 160 | omr |= OMR_ST | OMR_SR; |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 161 | dc2114x_outl(priv, omr, DE4X5_OMR); /* Enable the TX and/or RX */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 162 | } |
| 163 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 164 | static void stop_de4x5(struct dc2114x_priv *priv) |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 165 | { |
Marek Vasut | f02b701 | 2020-04-19 03:40:03 +0200 | [diff] [blame] | 166 | u32 omr; |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 167 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 168 | omr = dc2114x_inl(priv, DE4X5_OMR); |
Marek Vasut | 75244fb | 2020-04-19 03:36:46 +0200 | [diff] [blame] | 169 | omr &= ~(OMR_ST | OMR_SR); |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 170 | dc2114x_outl(priv, omr, DE4X5_OMR); /* Disable the TX and/or RX */ |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 171 | } |
| 172 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 173 | /* SROM Read and write routines. */ |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 174 | static void sendto_srom(struct dc2114x_priv *priv, u_int command, u_long addr) |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 175 | { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 176 | dc2114x_outl(priv, command, addr); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 177 | udelay(1); |
| 178 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 179 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 180 | static int getfrom_srom(struct dc2114x_priv *priv, u_long addr) |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 181 | { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 182 | u32 tmp = dc2114x_inl(priv, addr); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 183 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 184 | udelay(1); |
| 185 | return tmp; |
| 186 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 187 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 188 | /* Note: this routine returns extra data bits for size detection. */ |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 189 | static int do_read_eeprom(struct dc2114x_priv *priv, u_long ioaddr, int location, |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 190 | int addr_len) |
| 191 | { |
| 192 | int read_cmd = location | (SROM_READ_CMD << addr_len); |
| 193 | unsigned int retval = 0; |
| 194 | int i; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 195 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 196 | sendto_srom(priv, SROM_RD | SROM_SR, ioaddr); |
| 197 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS, ioaddr); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 198 | |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 199 | debug_cond(SROM_DLEVEL >= 1, " EEPROM read at %d ", location); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 200 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 201 | /* Shift the read command bits out. */ |
| 202 | for (i = 4 + addr_len; i >= 0; i--) { |
| 203 | short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 204 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 205 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS | dataval, |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 206 | ioaddr); |
| 207 | udelay(10); |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 208 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS | dataval | DT_CLK, |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 209 | ioaddr); |
| 210 | udelay(10); |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 211 | debug_cond(SROM_DLEVEL >= 2, "%X", |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 212 | getfrom_srom(priv, ioaddr) & 15); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 213 | retval = (retval << 1) | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 214 | !!(getfrom_srom(priv, ioaddr) & EE_DATA_READ); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 215 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 216 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 217 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS, ioaddr); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 218 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 219 | debug_cond(SROM_DLEVEL >= 2, " :%X:", getfrom_srom(priv, ioaddr) & 15); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 220 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 221 | for (i = 16; i > 0; i--) { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 222 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS | DT_CLK, ioaddr); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 223 | udelay(10); |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 224 | debug_cond(SROM_DLEVEL >= 2, "%X", |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 225 | getfrom_srom(priv, ioaddr) & 15); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 226 | retval = (retval << 1) | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 227 | !!(getfrom_srom(priv, ioaddr) & EE_DATA_READ); |
| 228 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS, ioaddr); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 229 | udelay(10); |
| 230 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 231 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 232 | /* Terminate the EEPROM access. */ |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 233 | sendto_srom(priv, SROM_RD | SROM_SR, ioaddr); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 234 | |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 235 | debug_cond(SROM_DLEVEL >= 2, " EEPROM value at %d is %5.5x.\n", |
| 236 | location, retval); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 237 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 238 | return retval; |
| 239 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 240 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 241 | /* |
| 242 | * This executes a generic EEPROM command, typically a write or write |
| 243 | * enable. It returns the data output from the EEPROM, and thus may |
| 244 | * also be used for reads. |
| 245 | */ |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 246 | static int do_eeprom_cmd(struct dc2114x_priv *priv, u_long ioaddr, int cmd, |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 247 | int cmd_len) |
| 248 | { |
| 249 | unsigned int retval = 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 250 | |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 251 | debug_cond(SROM_DLEVEL >= 1, " EEPROM op 0x%x: ", cmd); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 252 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 253 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS | DT_CLK, ioaddr); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 254 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 255 | /* Shift the command bits out. */ |
| 256 | do { |
| 257 | short dataval = (cmd & BIT(cmd_len)) ? EE_WRITE_1 : EE_WRITE_0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 258 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 259 | sendto_srom(priv, dataval, ioaddr); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 260 | udelay(10); |
Marek Vasut | 268cc5b | 2020-04-19 03:09:47 +0200 | [diff] [blame] | 261 | |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 262 | debug_cond(SROM_DLEVEL >= 2, "%X", |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 263 | getfrom_srom(priv, ioaddr) & 15); |
Nobuhiro Iwamatsu | d45fa74 | 2010-10-19 14:03:40 +0900 | [diff] [blame] | 264 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 265 | sendto_srom(priv, dataval | DT_CLK, ioaddr); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 266 | udelay(10); |
| 267 | retval = (retval << 1) | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 268 | !!(getfrom_srom(priv, ioaddr) & EE_DATA_READ); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 269 | } while (--cmd_len >= 0); |
wdenk | 0260cd6 | 2004-01-02 15:01:32 +0000 | [diff] [blame] | 270 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 271 | sendto_srom(priv, SROM_RD | SROM_SR | DT_CS, ioaddr); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 272 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 273 | /* Terminate the EEPROM access. */ |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 274 | sendto_srom(priv, SROM_RD | SROM_SR, ioaddr); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 275 | |
Marek Vasut | 091eea8 | 2020-04-19 04:05:44 +0200 | [diff] [blame] | 276 | debug_cond(SROM_DLEVEL >= 1, " EEPROM result is 0x%5.5x.\n", retval); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 277 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 278 | return retval; |
| 279 | } |
Marek Vasut | 331e4ec | 2020-04-18 01:56:51 +0200 | [diff] [blame] | 280 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 281 | static int read_srom(struct dc2114x_priv *priv, u_long ioaddr, int index) |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 282 | { |
| 283 | int ee_addr_size; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 284 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 285 | ee_addr_size = (do_read_eeprom(priv, ioaddr, 0xff, 8) & BIT(18)) ? 8 : 6; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 286 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 287 | return do_eeprom_cmd(priv, ioaddr, 0xffff | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 288 | (((SROM_READ_CMD << ee_addr_size) | index) << 16), |
| 289 | 3 + ee_addr_size + 16); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 290 | } |
| 291 | |
Marek Vasut | 29b9efc | 2020-07-08 07:20:14 +0200 | [diff] [blame] | 292 | static void send_setup_frame(struct dc2114x_priv *priv) |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 293 | { |
Hanyuan Zhao | b618201 | 2024-08-09 16:56:57 +0800 | [diff] [blame] | 294 | /* We are writing setup frame and these changes should be visible to the |
| 295 | * network card immediately. So let's directly read/write through the |
| 296 | * uncached window. |
| 297 | */ |
| 298 | char __setup_frame[SETUP_FRAME_LEN] __aligned(32); |
| 299 | char *setup_frame = (char *)map_physmem((phys_addr_t)virt_to_phys(__setup_frame), 0, MAP_NOCACHE); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 300 | char *pa = &setup_frame[0]; |
| 301 | int i; |
| 302 | |
| 303 | memset(pa, 0xff, SETUP_FRAME_LEN); |
| 304 | |
| 305 | for (i = 0; i < ETH_ALEN; i++) { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 306 | *(pa + (i & 1)) = priv->enetaddr[i]; |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 307 | if (i & 0x01) |
| 308 | pa += 4; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 309 | } |
| 310 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 311 | for (i = 0; priv->tx_ring[priv->tx_new].status & cpu_to_le32(T_OWN); i++) { |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 312 | if (i < TOUT_LOOP) |
| 313 | continue; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 314 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 315 | printf("%s: tx error buffer not ready\n", priv->name); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 316 | return; |
| 317 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 318 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 319 | priv->tx_ring[priv->tx_new].buf = cpu_to_le32(phys_to_bus(priv->devno, |
Hanyuan Zhao | 2e6ec85 | 2024-08-09 16:56:58 +0800 | [diff] [blame] | 320 | (phys_addr_t)&setup_frame[0])); |
Hanyuan Zhao | 4e4e1b9 | 2024-08-09 16:57:00 +0800 | [diff] [blame] | 321 | #if CONFIG_IS_ENABLED(TULIP_MULTIPLE_TX_DESC) |
| 322 | priv->tx_ring[priv->tx_new].des1 = cpu_to_le32(TD_SET | SETUP_FRAME_LEN); |
| 323 | priv->tx_ring[priv->tx_ring_size - 1].des1 |= cpu_to_le32(TD_TER); |
| 324 | #else |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 325 | priv->tx_ring[priv->tx_new].des1 = cpu_to_le32(TD_TER | TD_SET | SETUP_FRAME_LEN); |
Hanyuan Zhao | 4e4e1b9 | 2024-08-09 16:57:00 +0800 | [diff] [blame] | 326 | #endif |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 327 | priv->tx_ring[priv->tx_new].status = cpu_to_le32(T_OWN); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 328 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 329 | dc2114x_outl(priv, POLL_DEMAND, DE4X5_TPD); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 330 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 331 | for (i = 0; priv->tx_ring[priv->tx_new].status & cpu_to_le32(T_OWN); i++) { |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 332 | if (i < TOUT_LOOP) |
| 333 | continue; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 334 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 335 | printf("%s: tx buffer not ready\n", priv->name); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 336 | return; |
| 337 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 338 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 339 | if (le32_to_cpu(priv->tx_ring[priv->tx_new].status) != 0x7FFFFFFF) { |
Hanyuan Zhao | 2e6ec85 | 2024-08-09 16:56:58 +0800 | [diff] [blame] | 340 | debug("TX error status2 = 0x%08X\n", |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 341 | le32_to_cpu(priv->tx_ring[priv->tx_new].status)); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 342 | } |
| 343 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 344 | priv->tx_new = (priv->tx_new + 1) % NUM_TX_DESC; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 345 | } |
| 346 | |
Marek Vasut | 29b9efc | 2020-07-08 07:20:14 +0200 | [diff] [blame] | 347 | static int dc21x4x_send_common(struct dc2114x_priv *priv, void *packet, int length) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 348 | { |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 349 | int status = -1; |
| 350 | int i; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 351 | |
| 352 | if (length <= 0) { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 353 | printf("%s: bad packet size: %d\n", priv->name, length); |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 354 | goto done; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 355 | } |
| 356 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 357 | for (i = 0; priv->tx_ring[priv->tx_new].status & cpu_to_le32(T_OWN); i++) { |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 358 | if (i < TOUT_LOOP) |
| 359 | continue; |
| 360 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 361 | printf("%s: tx error buffer not ready\n", priv->name); |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 362 | goto done; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 363 | } |
| 364 | |
Hanyuan Zhao | b618201 | 2024-08-09 16:56:57 +0800 | [diff] [blame] | 365 | /* Packet should be visible to the network card */ |
| 366 | flush_dcache_range((phys_addr_t)packet, (phys_addr_t)(packet + RX_BUFF_SZ)); |
| 367 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 368 | priv->tx_ring[priv->tx_new].buf = cpu_to_le32(phys_to_bus(priv->devno, |
Hanyuan Zhao | 2e6ec85 | 2024-08-09 16:56:58 +0800 | [diff] [blame] | 369 | (phys_addr_t)packet)); |
Hanyuan Zhao | 4e4e1b9 | 2024-08-09 16:57:00 +0800 | [diff] [blame] | 370 | #if CONFIG_IS_ENABLED(TULIP_MULTIPLE_TX_DESC) |
| 371 | priv->tx_ring[priv->tx_new].des1 = cpu_to_le32(TD_LS | TD_FS | length); |
| 372 | priv->tx_ring[priv->tx_ring_size - 1].des1 |= cpu_to_le32(TD_TER); |
| 373 | #else |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 374 | priv->tx_ring[priv->tx_new].des1 = cpu_to_le32(TD_TER | TD_LS | TD_FS | length); |
Hanyuan Zhao | 4e4e1b9 | 2024-08-09 16:57:00 +0800 | [diff] [blame] | 375 | #endif |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 376 | priv->tx_ring[priv->tx_new].status = cpu_to_le32(T_OWN); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 377 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 378 | dc2114x_outl(priv, POLL_DEMAND, DE4X5_TPD); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 379 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 380 | for (i = 0; priv->tx_ring[priv->tx_new].status & cpu_to_le32(T_OWN); i++) { |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 381 | if (i < TOUT_LOOP) |
| 382 | continue; |
| 383 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 384 | printf(".%s: tx buffer not ready\n", priv->name); |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 385 | goto done; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 386 | } |
| 387 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 388 | if (le32_to_cpu(priv->tx_ring[priv->tx_new].status) & TD_ES) { |
| 389 | priv->tx_ring[priv->tx_new].status = 0x0; |
Hanyuan Zhao | a34fa7d | 2024-08-09 16:56:59 +0800 | [diff] [blame] | 390 | #if !CONFIG_IS_ENABLED(TULIP_IGNORE_TX_NO_CARRIER) |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 391 | goto done; |
Hanyuan Zhao | a34fa7d | 2024-08-09 16:56:59 +0800 | [diff] [blame] | 392 | #endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 393 | } |
| 394 | |
| 395 | status = length; |
| 396 | |
Marek Vasut | e3ffef3 | 2020-04-19 03:10:14 +0200 | [diff] [blame] | 397 | done: |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 398 | priv->tx_new = (priv->tx_new + 1) % NUM_TX_DESC; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 399 | return status; |
| 400 | } |
| 401 | |
Marek Vasut | dabf04f | 2020-07-08 07:12:58 +0200 | [diff] [blame] | 402 | static int dc21x4x_recv_check(struct dc2114x_priv *priv) |
| 403 | { |
| 404 | int length = 0; |
| 405 | u32 status; |
| 406 | |
| 407 | status = le32_to_cpu(priv->rx_ring[priv->rx_new].status); |
| 408 | |
| 409 | if (status & R_OWN) |
| 410 | return 0; |
| 411 | |
| 412 | if (status & RD_LS) { |
| 413 | /* Valid frame status. */ |
| 414 | if (status & RD_ES) { |
| 415 | /* There was an error. */ |
| 416 | printf("RX error status = 0x%08X\n", status); |
| 417 | return -EINVAL; |
| 418 | } else { |
| 419 | /* A valid frame received. */ |
| 420 | length = (le32_to_cpu(priv->rx_ring[priv->rx_new].status) |
| 421 | >> 16); |
| 422 | |
| 423 | return length; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | return -EAGAIN; |
| 428 | } |
| 429 | |
Marek Vasut | 29b9efc | 2020-07-08 07:20:14 +0200 | [diff] [blame] | 430 | static int dc21x4x_init_common(struct dc2114x_priv *priv) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 431 | { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 432 | int i; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 433 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 434 | reset_de4x5(priv); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 435 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 436 | if (dc2114x_inl(priv, DE4X5_STS) & (STS_TS | STS_RS)) { |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 437 | printf("Error: Cannot reset ethernet controller.\n"); |
| 438 | return -1; |
| 439 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 440 | |
Hanyuan Zhao | 53bad6b | 2024-08-09 16:57:01 +0800 | [diff] [blame] | 441 | /* 2024-07: |
| 442 | * Remove the OMR_PM flag and choose 16 perfect filtering mode since in |
| 443 | * modern networks there're plenty of multicasts and set ORM_PM flag will |
| 444 | * increase the dc2114x's workload and ask the U-Boot to handle packets |
| 445 | * not related to itself. And most of the time, U-Boot does not need this |
| 446 | * feature. |
| 447 | * |
| 448 | * A better way: let user to decide whether to have this flag. |
| 449 | */ |
| 450 | dc2114x_outl(priv, OMR_SDP | OMR_PS, DE4X5_OMR); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 451 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 452 | for (i = 0; i < NUM_RX_DESC; i++) { |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 453 | priv->rx_ring[i].status = cpu_to_le32(R_OWN); |
| 454 | priv->rx_ring[i].des1 = cpu_to_le32(RX_BUFF_SZ); |
| 455 | priv->rx_ring[i].buf = cpu_to_le32(phys_to_bus(priv->devno, |
Hanyuan Zhao | 2e6ec85 | 2024-08-09 16:56:58 +0800 | [diff] [blame] | 456 | (phys_addr_t)net_rx_packets[i])); |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 457 | priv->rx_ring[i].next = 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 458 | } |
| 459 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 460 | for (i = 0; i < NUM_TX_DESC; i++) { |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 461 | priv->tx_ring[i].status = 0; |
| 462 | priv->tx_ring[i].des1 = 0; |
| 463 | priv->tx_ring[i].buf = 0; |
| 464 | priv->tx_ring[i].next = 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 465 | } |
| 466 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 467 | priv->rx_ring_size = NUM_RX_DESC; |
| 468 | priv->tx_ring_size = NUM_TX_DESC; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 469 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 470 | /* Write the end of list marker to the descriptor lists. */ |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 471 | priv->rx_ring[priv->rx_ring_size - 1].des1 |= cpu_to_le32(RD_RER); |
| 472 | priv->tx_ring[priv->tx_ring_size - 1].des1 |= cpu_to_le32(TD_TER); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 473 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 474 | /* Tell the adapter where the TX/RX rings are located. */ |
Hanyuan Zhao | 2e6ec85 | 2024-08-09 16:56:58 +0800 | [diff] [blame] | 475 | dc2114x_outl(priv, phys_to_bus(priv->devno, (phys_addr_t)priv->rx_ring), |
Marek Vasut | b8e0b47 | 2020-07-08 06:50:41 +0200 | [diff] [blame] | 476 | DE4X5_RRBA); |
Hanyuan Zhao | 2e6ec85 | 2024-08-09 16:56:58 +0800 | [diff] [blame] | 477 | dc2114x_outl(priv, phys_to_bus(priv->devno, (phys_addr_t)priv->tx_ring), |
Marek Vasut | b8e0b47 | 2020-07-08 06:50:41 +0200 | [diff] [blame] | 478 | DE4X5_TRBA); |
Marek Vasut | e13635a | 2020-04-19 03:10:50 +0200 | [diff] [blame] | 479 | |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 480 | start_de4x5(priv); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 481 | |
Marek Vasut | f19db7f | 2020-07-08 07:01:32 +0200 | [diff] [blame] | 482 | priv->tx_new = 0; |
| 483 | priv->rx_new = 0; |
wdenk | 0260cd6 | 2004-01-02 15:01:32 +0000 | [diff] [blame] | 484 | |
Marek Vasut | 29b9efc | 2020-07-08 07:20:14 +0200 | [diff] [blame] | 485 | send_setup_frame(priv); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 486 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 487 | return 0; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 488 | } |
| 489 | |
Marek Vasut | 29b9efc | 2020-07-08 07:20:14 +0200 | [diff] [blame] | 490 | static void dc21x4x_halt_common(struct dc2114x_priv *priv) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 491 | { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 492 | stop_de4x5(priv); |
| 493 | dc2114x_outl(priv, 0, DE4X5_SICR); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 494 | } |
| 495 | |
Marek Vasut | a3f8908 | 2020-07-08 06:42:07 +0200 | [diff] [blame] | 496 | static void read_hw_addr(struct dc2114x_priv *priv) |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 497 | { |
Marek Vasut | a3f8908 | 2020-07-08 06:42:07 +0200 | [diff] [blame] | 498 | u_short tmp, *p = (u_short *)(&priv->enetaddr[0]); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 499 | int i, j = 0; |
Marek Vasut | b46c7a0 | 2020-04-19 03:11:06 +0200 | [diff] [blame] | 500 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 501 | for (i = 0; i < (ETH_ALEN >> 1); i++) { |
Marek Vasut | 25ada1f | 2020-07-08 06:46:09 +0200 | [diff] [blame] | 502 | tmp = read_srom(priv, DE4X5_APROM, (SROM_HWADD >> 1) + i); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 503 | *p = le16_to_cpu(tmp); |
| 504 | j += *p++; |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 505 | } |
| 506 | |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 507 | if (!j || j == 0x2fffd) { |
Marek Vasut | a3f8908 | 2020-07-08 06:42:07 +0200 | [diff] [blame] | 508 | memset(priv->enetaddr, 0, ETH_ALEN); |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 509 | debug("Warning: can't read HW address from SROM.\n"); |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 510 | } |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 511 | } |
| 512 | |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 513 | #if !CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 514 | static struct pci_device_id supported[] = { |
Marek Vasut | 7cc35c8 | 2020-06-20 17:36:42 +0200 | [diff] [blame] | 515 | { PCI_DEVICE(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_FAST) }, |
| 516 | { PCI_DEVICE(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142) }, |
Marek Vasut | 5e2ad05 | 2020-04-19 04:00:49 +0200 | [diff] [blame] | 517 | { } |
| 518 | }; |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 519 | #endif |
wdenk | c609719 | 2002-11-03 00:24:07 +0000 | [diff] [blame] | 520 | |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 521 | static int dc2114x_start(struct udevice *dev) |
| 522 | { |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 523 | struct dc2114x_priv *priv = dev_get_priv(dev); |
Hanyuan Zhao | 9bea14b | 2024-08-09 16:56:55 +0800 | [diff] [blame] | 524 | int rval; |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 525 | |
Tom Rini | 7bea69e | 2024-10-27 10:15:43 -0600 | [diff] [blame] | 526 | if (!priv->enetaddr) { |
Hanyuan Zhao | 9bea14b | 2024-08-09 16:56:55 +0800 | [diff] [blame] | 527 | rval = eth_env_get_enetaddr("ethaddr", priv->enetaddr); |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 528 | |
Hanyuan Zhao | 9bea14b | 2024-08-09 16:56:55 +0800 | [diff] [blame] | 529 | if (!rval) { |
| 530 | printf("dc2114x: Err: please set a valid MAC address\n"); |
| 531 | return -EINVAL; |
| 532 | } |
| 533 | } |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 534 | |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 535 | #if !CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 536 | /* Ensure we're not sleeping. */ |
| 537 | dm_pci_write_config8(dev, PCI_CFDA_PSM, WAKEUP); |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 538 | #endif |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 539 | |
| 540 | return dc21x4x_init_common(priv); |
| 541 | } |
| 542 | |
| 543 | static void dc2114x_stop(struct udevice *dev) |
| 544 | { |
| 545 | struct dc2114x_priv *priv = dev_get_priv(dev); |
| 546 | |
| 547 | dc21x4x_halt_common(priv); |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 548 | #if !CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 549 | dm_pci_write_config8(dev, PCI_CFDA_PSM, SLEEP); |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 550 | #endif |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 551 | } |
| 552 | |
| 553 | static int dc2114x_send(struct udevice *dev, void *packet, int length) |
| 554 | { |
| 555 | struct dc2114x_priv *priv = dev_get_priv(dev); |
| 556 | int ret; |
| 557 | |
| 558 | ret = dc21x4x_send_common(priv, packet, length); |
| 559 | |
| 560 | return ret ? 0 : -ETIMEDOUT; |
| 561 | } |
| 562 | |
| 563 | static int dc2114x_recv(struct udevice *dev, int flags, uchar **packetp) |
| 564 | { |
| 565 | struct dc2114x_priv *priv = dev_get_priv(dev); |
| 566 | int ret; |
| 567 | |
| 568 | ret = dc21x4x_recv_check(priv); |
| 569 | |
| 570 | if (ret < 0) { |
| 571 | /* Update entry information. */ |
| 572 | priv->rx_new = (priv->rx_new + 1) % priv->rx_ring_size; |
| 573 | ret = 0; |
| 574 | } |
| 575 | |
| 576 | if (!ret) |
| 577 | return 0; |
| 578 | |
Hanyuan Zhao | b618201 | 2024-08-09 16:56:57 +0800 | [diff] [blame] | 579 | invalidate_dcache_range((phys_addr_t)net_rx_packets[priv->rx_new], (phys_addr_t)(net_rx_packets[priv->rx_new] + RX_BUFF_SZ)); |
| 580 | *packetp = (uchar *)net_rx_packets[priv->rx_new]; |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 581 | |
| 582 | return ret - 4; |
| 583 | } |
| 584 | |
| 585 | static int dc2114x_free_pkt(struct udevice *dev, uchar *packet, int length) |
| 586 | { |
| 587 | struct dc2114x_priv *priv = dev_get_priv(dev); |
| 588 | |
| 589 | priv->rx_ring[priv->rx_new].status = cpu_to_le32(R_OWN); |
| 590 | |
| 591 | /* Update entry information. */ |
| 592 | priv->rx_new = (priv->rx_new + 1) % priv->rx_ring_size; |
| 593 | |
| 594 | return 0; |
| 595 | } |
| 596 | |
| 597 | static int dc2114x_read_rom_hwaddr(struct udevice *dev) |
| 598 | { |
| 599 | struct dc2114x_priv *priv = dev_get_priv(dev); |
| 600 | |
| 601 | read_hw_addr(priv); |
| 602 | |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | static int dc2114x_bind(struct udevice *dev) |
| 607 | { |
Hanyuan Zhao | 66c2861 | 2024-08-09 16:56:56 +0800 | [diff] [blame] | 608 | static int card_number = 0; |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 609 | char name[16]; |
| 610 | |
| 611 | sprintf(name, "dc2114x#%u", card_number++); |
| 612 | |
| 613 | return device_set_name(dev, name); |
| 614 | } |
| 615 | |
| 616 | static int dc2114x_probe(struct udevice *dev) |
| 617 | { |
Simon Glass | fa20e93 | 2020-12-03 16:55:20 -0700 | [diff] [blame] | 618 | struct eth_pdata *plat = dev_get_plat(dev); |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 619 | struct dc2114x_priv *priv = dev_get_priv(dev); |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 620 | |
| 621 | #if !CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 622 | u16 command, status; |
| 623 | u32 iobase; |
| 624 | |
| 625 | dm_pci_read_config32(dev, PCI_BASE_ADDRESS_1, &iobase); |
| 626 | iobase &= ~0xf; |
| 627 | |
| 628 | debug("dc2114x: DEC 2114x PCI Device @0x%x\n", iobase); |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 629 | priv->iobase = (void __iomem *)dm_pci_mem_to_phys(dev, iobase); |
| 630 | |
| 631 | command = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER; |
| 632 | dm_pci_write_config16(dev, PCI_COMMAND, command); |
| 633 | dm_pci_read_config16(dev, PCI_COMMAND, &status); |
| 634 | if ((status & command) != command) { |
| 635 | printf("dc2114x: Couldn't enable IO access or Bus Mastering\n"); |
| 636 | return -EINVAL; |
| 637 | } |
| 638 | |
| 639 | dm_pci_write_config8(dev, PCI_LATENCY_TIMER, 0x60); |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 640 | #endif |
Hanyuan Zhao | 9bea14b | 2024-08-09 16:56:55 +0800 | [diff] [blame] | 641 | |
| 642 | priv->devno = dev; |
| 643 | priv->enetaddr = plat->enetaddr; |
Hanyuan Zhao | b618201 | 2024-08-09 16:56:57 +0800 | [diff] [blame] | 644 | priv->rx_ring = (struct de4x5_desc *)map_physmem((phys_addr_t)virt_to_phys(rx_ring), 0, MAP_NOCACHE); |
| 645 | priv->tx_ring = (struct de4x5_desc *)map_physmem((phys_addr_t)virt_to_phys(tx_ring), 0, MAP_NOCACHE); |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 646 | |
| 647 | return 0; |
| 648 | } |
| 649 | |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 650 | #if CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
| 651 | static int dc2114x_of_to_plat(struct udevice *dev) |
| 652 | { |
| 653 | struct eth_pdata *plat = dev_get_plat(dev); |
| 654 | struct dc2114x_priv *priv = dev_get_priv(dev); |
| 655 | |
| 656 | plat->iobase = (phys_addr_t)map_physmem((phys_addr_t)devfdt_get_addr(dev), 0, MAP_NOCACHE); |
Tom Rini | 7bea69e | 2024-10-27 10:15:43 -0600 | [diff] [blame] | 657 | priv->iobase = (void *)plat->iobase; |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 658 | |
| 659 | return 0; |
| 660 | } |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 661 | #endif |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 662 | |
| 663 | static const struct eth_ops dc2114x_ops = { |
| 664 | .start = dc2114x_start, |
| 665 | .send = dc2114x_send, |
| 666 | .recv = dc2114x_recv, |
| 667 | .stop = dc2114x_stop, |
| 668 | .free_pkt = dc2114x_free_pkt, |
| 669 | .read_rom_hwaddr = dc2114x_read_rom_hwaddr, |
| 670 | }; |
| 671 | |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 672 | #if CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
| 673 | static const struct udevice_id dc2114x_eth_ids[] = { |
| 674 | { .compatible = "dec,dmfe" }, |
| 675 | { .compatible = "tulip,dmfe" }, |
| 676 | { .compatible = "dec,dc2114x" }, |
| 677 | { .compatible = "tulip,dc2114x" }, |
| 678 | { } |
| 679 | }; |
| 680 | #endif |
| 681 | |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 682 | U_BOOT_DRIVER(eth_dc2114x) = { |
| 683 | .name = "eth_dc2114x", |
| 684 | .id = UCLASS_ETH, |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 685 | #if CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
| 686 | .of_match = dc2114x_eth_ids, |
| 687 | .of_to_plat = dc2114x_of_to_plat, |
| 688 | #endif |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 689 | .bind = dc2114x_bind, |
| 690 | .probe = dc2114x_probe, |
| 691 | .ops = &dc2114x_ops, |
Simon Glass | 8a2b47f | 2020-12-03 16:55:17 -0700 | [diff] [blame] | 692 | .priv_auto = sizeof(struct dc2114x_priv), |
Simon Glass | 71fa5b4 | 2020-12-03 16:55:18 -0700 | [diff] [blame] | 693 | .plat_auto = sizeof(struct eth_pdata), |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 694 | }; |
| 695 | |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 696 | #if !CONFIG_IS_ENABLED(TULIP_SUPPORT_NON_PCI) |
Marek Vasut | 1d6c738 | 2020-07-08 07:26:14 +0200 | [diff] [blame] | 697 | U_BOOT_PCI_DEVICE(eth_dc2114x, supported); |
Hanyuan Zhao | a45684c | 2024-08-09 16:56:54 +0800 | [diff] [blame] | 698 | #endif |