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net: ag7xxx: Comment register names

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The register constants don't use the exact names that are used in the
TRM, so add comments that use the exact names so that it is clear what
register is being referred to.

https://www.atheros-drivers.com/qualcomm-atheros-datasheets-for-AR9331.html

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Marek Vasut <marex@denx.de>
master
Joe Hershberger 8 years ago
parent 734f9abd17
commit 9240a2f5f1
1 changed files with 16 additions and 0 deletions
  1. 16
      drivers/net/ag7xxx.c

16
drivers/net/ag7xxx.c
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@ -26,6 +26,7 @@ enum ag7xxx_model {
AG7XXX_MODEL_AG934X,
};
/* MAC Configuration 1 */
#define AG7XXX_ETH_CFG1 0x00
#define AG7XXX_ETH_CFG1_SOFT_RST BIT(31)
#define AG7XXX_ETH_CFG1_RX_RST BIT(19)
@ -34,6 +35,7 @@ enum ag7xxx_model {
#define AG7XXX_ETH_CFG1_RX_EN BIT(2)
#define AG7XXX_ETH_CFG1_TX_EN BIT(0)
/* MAC Configuration 2 */
#define AG7XXX_ETH_CFG2 0x04
#define AG7XXX_ETH_CFG2_IF_1000 BIT(9)
#define AG7XXX_ETH_CFG2_IF_10_100 BIT(8)
@ -43,26 +45,34 @@ enum ag7xxx_model {
#define AG7XXX_ETH_CFG2_PAD_CRC_EN BIT(2)
#define AG7XXX_ETH_CFG2_FDX BIT(0)
/* MII Configuration */
#define AG7XXX_ETH_MII_MGMT_CFG 0x20
#define AG7XXX_ETH_MII_MGMT_CFG_RESET BIT(31)
/* MII Command */
#define AG7XXX_ETH_MII_MGMT_CMD 0x24
#define AG7XXX_ETH_MII_MGMT_CMD_READ 0x1
/* MII Address */
#define AG7XXX_ETH_MII_MGMT_ADDRESS 0x28
#define AG7XXX_ETH_MII_MGMT_ADDRESS_SHIFT 8
/* MII Control */
#define AG7XXX_ETH_MII_MGMT_CTRL 0x2c
/* MII Status */
#define AG7XXX_ETH_MII_MGMT_STATUS 0x30
/* MII Indicators */
#define AG7XXX_ETH_MII_MGMT_IND 0x34
#define AG7XXX_ETH_MII_MGMT_IND_INVALID BIT(2)
#define AG7XXX_ETH_MII_MGMT_IND_BUSY BIT(0)
/* STA Address 1 & 2 */
#define AG7XXX_ETH_ADDR1 0x40
#define AG7XXX_ETH_ADDR2 0x44
/* ETH Configuration 0 - 5 */
#define AG7XXX_ETH_FIFO_CFG_0 0x48
#define AG7XXX_ETH_FIFO_CFG_1 0x4c
#define AG7XXX_ETH_FIFO_CFG_2 0x50
@ -70,18 +80,24 @@ enum ag7xxx_model {
#define AG7XXX_ETH_FIFO_CFG_4 0x58
#define AG7XXX_ETH_FIFO_CFG_5 0x5c
/* DMA Transfer Control for Queue 0 */
#define AG7XXX_ETH_DMA_TX_CTRL 0x180
#define AG7XXX_ETH_DMA_TX_CTRL_TXE BIT(0)
/* Descriptor Address for Queue 0 Tx */
#define AG7XXX_ETH_DMA_TX_DESC 0x184
/* DMA Tx Status */
#define AG7XXX_ETH_DMA_TX_STATUS 0x188
/* Rx Control */
#define AG7XXX_ETH_DMA_RX_CTRL 0x18c
#define AG7XXX_ETH_DMA_RX_CTRL_RXE BIT(0)
/* Pointer to Rx Descriptor */
#define AG7XXX_ETH_DMA_RX_DESC 0x190
/* Rx Status */
#define AG7XXX_ETH_DMA_RX_STATUS 0x194
/* Custom register at 0x18070000 */

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