Hi,

Sorry for many garbage chars in last patch mail. Hope this one has no problem.

Last time I submitted a patch for AR7242 and PB92 but it was not
accepted. I guessed maybe the reason is because of invalid mail
format, so re-submit it again with format revised. This time only
AR7242's Ethernet setting is involved. I will appreciate if anybody
can point out the problem in this patch or this mail.
AR7242 has one GMII/RGMII interface. It is different with
AR7240/AR7241 which have no MII interface.
The frequency of MDC can't be too high, like 50MHz, otherwise AR71xx
would have problem to communicate with external switch devices.
Signed-off-by: Jess Zhu <jess....@gmail.com>
Modified:
Index: 
trunk/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
Index: trunk/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c
-------------------------------

Index: 
trunk/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
===================================================================
--- trunk/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h  
(revision
24814)
+++ trunk/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h  
(working
copy)
@@ -152,6 +152,8 @@
 #define AR724X_DDR_DIV_SHIFT           22
 #define AR724X_DDR_DIV_MASK            0x3

+#define AR7242_PLL_REG_ETH0_INT_CLOCK  0x2C
+
 #define AR91XX_PLL_REG_CPU_CONFIG      0x00
 #define AR91XX_PLL_REG_ETH_CONFIG      0x04
 #define AR91XX_PLL_REG_ETH0_INT_CLOCK  0x14
Index: trunk/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c
===================================================================
--- trunk/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c  (revision 24814)
+++ trunk/target/linux/ar71xx/files/arch/mips/ar71xx/devices.c  (working copy)
@@ -94,7 +94,6 @@
                ar71xx_mdio_resources[0].end = AR71XX_GE1_BASE + 0x200 - 1;
                break;
        case AR71XX_SOC_AR7242:
-               ar71xx_mdio_data.is_ar7240 = 1;
                break;
        default:
                break;
@@ -196,6 +195,19 @@
        /* TODO */
 }

+static void ar7242_set_pll_ge0(int speed)
+{
+       u32 val = ar71xx_get_eth_pll(0, speed);
+
+       ar71xx_set_pll(AR71XX_PLL_REG_SEC_CONFIG, AR7242_PLL_REG_ETH0_INT_CLOCK,
+                       val, AR71XX_ETH0_PLL_SHIFT);
+}
+
+static void ar7242_set_pll_ge1(int speed)
+{
+       /* TODO */
+}
+
 static void ar91xx_set_pll_ge0(int speed)
 {
        u32 val = ar71xx_get_eth_pll(0, speed);
@@ -316,6 +328,10 @@
 #define AR724X_PLL_VAL_100     0x00001099
 #define AR724X_PLL_VAL_10      0x00991099

+#define AR7242_PLL_VAL_1000    0x16000000
+#define AR7242_PLL_VAL_100     0x00000101
+#define AR7242_PLL_VAL_10      0x00001616
+
 #define AR91XX_PLL_VAL_1000    0x1a000000
 #define AR91XX_PLL_VAL_100     0x13000a44
 #define AR91XX_PLL_VAL_10      0x00441099
@@ -347,11 +363,16 @@

        case AR71XX_SOC_AR7240:
        case AR71XX_SOC_AR7241:
-       case AR71XX_SOC_AR7242:
                pll_10 = AR724X_PLL_VAL_10;
                pll_100 = AR724X_PLL_VAL_100;
                pll_1000 = AR724X_PLL_VAL_1000;
                break;
+               
+       case AR71XX_SOC_AR7242:         
+               pll_10 = AR7242_PLL_VAL_10;
+               pll_100 = AR7242_PLL_VAL_100;
+               pll_1000 = AR7242_PLL_VAL_1000;
+               break;  

        case AR71XX_SOC_AR9130:
        case AR71XX_SOC_AR9132:
@@ -443,7 +464,6 @@
                break;

        case AR71XX_SOC_AR7241:
-       case AR71XX_SOC_AR7242:
                ar71xx_eth0_data.reset_bit |= AR724X_RESET_GE0_MDIO;
                ar71xx_eth1_data.reset_bit |= AR724X_RESET_GE1_MDIO;
                /* fall through */
@@ -462,6 +482,25 @@
                        pdata->fifo_cfg3 = 0x01f00140;
                break;

+       case AR71XX_SOC_AR7242:
+               ar71xx_eth1_data.reset_bit |= AR724X_RESET_GE1_MDIO;
+               pdata->ddr_flush = id ? ar724x_ddr_flush_ge1
+                                     : ar724x_ddr_flush_ge0;
+               pdata->set_pll =  id ? ar7242_set_pll_ge1
+                                    : ar7242_set_pll_ge0;
+               pdata->is_ar724x = 1;
+
+               if (!pdata->fifo_cfg1)
+                       pdata->fifo_cfg1 = 0x0010ffff;
+               if (!pdata->fifo_cfg2)
+                       pdata->fifo_cfg2 = 0x015500aa;
+               if (!pdata->fifo_cfg3)
+                       pdata->fifo_cfg3 = 0x01f00140;
+
+               pdata->has_gbit = 1;
+               break;
+               
+
        case AR71XX_SOC_AR9130:
                pdata->ddr_flush = id ? ar91xx_ddr_flush_ge1
                                      : ar91xx_ddr_flush_ge0;
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