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net: lan743x: Add support for EEPROM

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Add new the EEPROM read and write access functions and system lock
protection to access by devices for PCI11010/PCI11414 chips

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raju Lakkaraju
2022-03-17 16:13:07 +05:30
committed by David S. Miller
parent bc1962e523
commit cdea83cc10
3 changed files with 212 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/net/ethernet/microchip/lan743x_main.h
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@@ -86,6 +86,40 @@
#define E2P_DATA (0x044)
/* Hearthstone top level & System Reg Addresses */
#define ETH_CTRL_REG_ADDR_BASE (0x0000)
#define ETH_SYS_REG_ADDR_BASE (0x4000)
#define CONFIG_REG_ADDR_BASE (0x0000)
#define ETH_EEPROM_REG_ADDR_BASE (0x0E00)
#define ETH_OTP_REG_ADDR_BASE (0x1000)
#define SYS_LOCK_REG (0x00A0)
#define SYS_LOCK_REG_MAIN_LOCK_ BIT(7)
#define SYS_LOCK_REG_GEN_PERI_LOCK_ BIT(5)
#define SYS_LOCK_REG_SPI_PERI_LOCK_ BIT(4)
#define SYS_LOCK_REG_SMBUS_PERI_LOCK_ BIT(3)
#define SYS_LOCK_REG_UART_SS_LOCK_ BIT(2)
#define SYS_LOCK_REG_ENET_SS_LOCK_ BIT(1)
#define SYS_LOCK_REG_USB_SS_LOCK_ BIT(0)
#define ETH_SYSTEM_SYS_LOCK_REG (ETH_SYS_REG_ADDR_BASE + \
CONFIG_REG_ADDR_BASE + \
SYS_LOCK_REG)
#define HS_EEPROM_REG_ADDR_BASE (ETH_SYS_REG_ADDR_BASE + \
ETH_EEPROM_REG_ADDR_BASE)
#define HS_E2P_CMD (HS_EEPROM_REG_ADDR_BASE + 0x0000)
#define HS_E2P_CMD_EPC_BUSY_ BIT(31)
#define HS_E2P_CMD_EPC_CMD_WRITE_ GENMASK(29, 28)
#define HS_E2P_CMD_EPC_CMD_READ_ (0x0)
#define HS_E2P_CMD_EPC_TIMEOUT_ BIT(17)
#define HS_E2P_CMD_EPC_ADDR_MASK_ GENMASK(15, 0)
#define HS_E2P_DATA (HS_EEPROM_REG_ADDR_BASE + 0x0004)
#define HS_E2P_DATA_MASK_ GENMASK(7, 0)
#define HS_E2P_CFG (HS_EEPROM_REG_ADDR_BASE + 0x0008)
#define HS_E2P_CFG_I2C_PULSE_MASK_ GENMASK(19, 16)
#define HS_E2P_CFG_EEPROM_SIZE_SEL_ BIT(12)
#define HS_E2P_CFG_I2C_BAUD_RATE_MASK_ GENMASK(9, 8)
#define HS_E2P_CFG_TEST_EEPR_TO_BYP_ BIT(0)
#define HS_E2P_PAD_CTL (HS_EEPROM_REG_ADDR_BASE + 0x000C)
#define GPIO_CFG0 (0x050)
#define GPIO_CFG0_GPIO_DIR_BIT_(bit) BIT(16 + (bit))
#define GPIO_CFG0_GPIO_DATA_BIT_(bit) BIT(0 + (bit))
@@ -773,6 +807,10 @@ struct lan743x_adapter {
struct lan743x_rx rx[LAN743X_USED_RX_CHANNELS];
bool is_pci11x1x;
bool is_sgmii_en;
/* protect ethernet syslock */
spinlock_t eth_syslock_spinlock;
bool eth_syslock_en;
u32 eth_syslock_acquire_cnt;
u8 max_tx_channels;
u8 used_tx_channels;
u8 max_vector_count;