[uboot-lantiq] add preliminary AR9 support
[openwrt.git] / package / uboot-lantiq / files / board / infineon / easy50812 / ar9.c
diff --git a/package/uboot-lantiq/files/board/infineon/easy50812/ar9.c b/package/uboot-lantiq/files/board/infineon/easy50812/ar9.c
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+/*
+* (C) Copyright 2003
+* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+*
+* (C) Copyright 2010
+* Thomas Langer, Ralph Hempel
+*
+* 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 <common.h>
+#include <command.h>
+#include <netdev.h>
+#include <miiphy.h>
+#include <asm/addrspace.h>
+#include <asm/ar9.h>
+#include <asm/reboot.h>
+#include <asm/io.h>
+#if defined(CONFIG_CMD_HTTPD)
+#include <httpd.h>
+#endif
+
+extern ulong ifx_get_ddr_hz(void);
+extern ulong ifx_get_cpuclk(void);
+
+/* definitions for external PHYs / Switches */
+/* Split values into phy address and register address */
+#define PHYADDR(_reg)  ((_reg >> 5) & 0xff), (_reg & 0x1f)
+
+/* IDs and registers of known external switches */
+#define ID_SAMURAI_0                   0x1020
+#define ID_SAMURAI_1                   0x0007
+#define SAMURAI_ID_REG0                        0xA0
+#define SAMURAI_ID_REG1                        0xA1
+#define ID_TANTOS                              0x2599
+
+#define RGMII_MODE                             0
+#define MII_MODE                               1
+#define REV_MII_MODE                   2
+#define RED_MII_MODE_IC                        3               /*Input clock */
+#define RGMII_MODE_100MB               4
+#define TURBO_REV_MII_MODE             6               /*Turbo Rev Mii mode */
+#define RED_MII_MODE_OC                        7               /*Output clock */
+#define RGMII_MODE_10MB                        8
+
+#define mdelay(n)   udelay((n)*1000)
+
+static void ar9_sw_chip_init(u8 port, u8 mode);
+static void ar9_enable_sw_port(u8 port, u8 state);
+static void ar9_configure_sw_port(u8 port, u8 mode);
+static u16 ar9_smi_reg_read(u16 reg);
+static u16 ar9_smi_reg_write(u16 reg, u16 data);
+static char * const name = "lq_cpe_eth";
+static int external_switch_init(void);
+
+void _machine_restart(void)
+{
+       *AR9_RCU_RST_REQ |= AR9_RST_ALL;
+}
+
+#ifdef CONFIG_SYS_RAMBOOT
+phys_size_t initdram(int board_type)
+{
+       return get_ram_size((long *)CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_MAX_RAM);
+}
+#elif defined(CONFIG_USE_DDR_RAM)
+phys_size_t initdram(int board_type)
+{
+       return (CONFIG_SYS_MAX_RAM);
+}
+#else
+
+static ulong max_sdram_size(void)     /* per Chip Select */
+{
+       /* The only supported SDRAM data width is 16bit.
+       */
+#define CFG_DW 4
+
+       /* The only supported number of SDRAM banks is 4.
+       */
+#define CFG_NB 4
+
+       ulong cfgpb0 = *AR9_SDRAM_MC_CFGPB0;
+       int   cols   = cfgpb0 & 0xF;
+       int   rows   = (cfgpb0 & 0xF0) >> 4;
+       ulong size   = (1 << (rows + cols)) * CFG_DW * CFG_NB;
+
+       return size;
+}
+
+/*
+* Check memory range for valid RAM. A simple memory test determines
+* the actually available RAM size between addresses `base' and
+* `base + maxsize'.
+*/
+
+static long int dram_size(long int *base, long int maxsize)
+{
+       volatile long int *addr;
+       ulong cnt, val;
+       ulong save[32];                 /* to make test non-destructive */
+       unsigned char i = 0;
+
+       for (cnt = (maxsize / sizeof (long)) >> 1; cnt > 0; cnt >>= 1) {
+               addr = base + cnt;              /* pointer arith! */
+
+               save[i++] = *addr;
+               *addr = ~cnt;
+       }
+
+       /* write 0 to base address */
+       addr = base;
+       save[i] = *addr;
+       *addr = 0;
+
+       /* check at base address */
+       if ((val = *addr) != 0) {
+               *addr = save[i];
+               return (0);
+       }
+
+       for (cnt = 1; cnt < maxsize / sizeof (long); cnt <<= 1) {
+               addr = base + cnt;              /* pointer arith! */
+
+               val = *addr;
+               *addr = save[--i];
+
+               if (val != (~cnt)) {
+                       return (cnt * sizeof (long));
+               }
+       }
+       return (maxsize);
+}
+
+phys_size_t initdram(int board_type)
+{
+       int   rows, cols, best_val = *AR9_SDRAM_MC_CFGPB0;
+       ulong size, max_size       = 0;
+       ulong our_address;
+
+       /* load t9 into our_address */
+       asm volatile ("move %0, $25" : "=r" (our_address) :);
+
+       /* Can't probe for RAM size unless we are running from Flash.
+       * find out whether running from DRAM or Flash.
+       */
+       if (CPHYSADDR(our_address) < CPHYSADDR(PHYS_FLASH_1))
+       {
+               return max_sdram_size();
+       }
+
+       for (cols = 0x8; cols <= 0xC; cols++)
+       {
+               for (rows = 0xB; rows <= 0xD; rows++)
+               {
+                       *AR9_SDRAM_MC_CFGPB0 = (0x14 << 8) |
+                                                                                       (rows << 4) | cols;
+                       size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,
+                                                                                       max_sdram_size());
+
+                       if (size > max_size)
+                       {
+                               best_val = *AR9_SDRAM_MC_CFGPB0;
+                               max_size = size;
+                       }
+               }
+       }
+
+       *AR9_SDRAM_MC_CFGPB0 = best_val;
+       return max_size;
+}
+#endif
+
+int checkboard (void)
+{
+       unsigned long chipid = *AR9_MPS_CHIPID;
+       int part_num;
+
+       puts ("Board: ");
+
+       part_num = AR9_MPS_CHIPID_PARTNUM_GET(chipid);
+       switch (part_num)
+       {
+       case 0x16C:
+               puts("ARX188 ");
+               break;
+       case 0x16D:
+               puts("ARX168 ");
+               break;
+       case 0x16F:
+               puts("ARX182 ");
+               break;
+       case 0x170:
+               puts("GRX188 ");
+               break;
+       case 0x171:
+               puts("GRX168 ");
+               break;
+       default:
+               printf ("unknown, chip part number 0x%03X ", part_num);
+               break;
+       }
+       printf ("V1.%ld, ", AR9_MPS_CHIPID_VERSION_GET(chipid));
+
+       printf("DDR Speed %ld MHz, ", ifx_get_ddr_hz()/1000000);
+       printf("CPU Speed %ld MHz\n", ifx_get_cpuclk()/1000000);
+
+       return 0;
+}
+
+#ifdef CONFIG_SKIP_LOWLEVEL_INIT
+int board_early_init_f(void)
+{
+#ifdef CONFIG_EBU_ADDSEL0
+       (*AR9_EBU_ADDSEL0) = CONFIG_EBU_ADDSEL0;
+#endif
+#ifdef CONFIG_EBU_ADDSEL1
+       (*AR9_EBU_ADDSEL1) = CONFIG_EBU_ADDSEL1;
+#endif
+#ifdef CONFIG_EBU_ADDSEL2
+       (*AR9_EBU_ADDSEL2) = CONFIG_EBU_ADDSEL2;
+#endif
+#ifdef CONFIG_EBU_ADDSEL3
+       (*AR9_EBU_ADDSEL3) = CONFIG_EBU_ADDSEL3;
+#endif
+#ifdef CONFIG_EBU_BUSCON0
+       (*AR9_EBU_BUSCON0) = CONFIG_EBU_BUSCON0;
+#endif
+#ifdef CONFIG_EBU_BUSCON1
+       (*AR9_EBU_BUSCON1) = CONFIG_EBU_BUSCON1;
+#endif
+#ifdef CONFIG_EBU_BUSCON2
+       (*AR9_EBU_BUSCON2) = CONFIG_EBU_BUSCON2;
+#endif
+#ifdef CONFIG_EBU_BUSCON3
+       (*AR9_EBU_BUSCON3) = CONFIG_EBU_BUSCON3;
+#endif
+
+       return 0;
+}
+#endif /* CONFIG_SKIP_LOWLEVEL_INIT */
+
+int board_eth_init(bd_t *bis)
+{
+#if defined(CONFIG_IFX_ETOP)
+
+       *AR9_PMU_PWDCR &= 0xFFFFEFDF;
+       *AR9_PMU_PWDCR &= ~AR9_PMU_DMA; /* enable DMA from PMU */
+
+       if (lq_eth_initialize(bis) < 0)
+               return -1;
+
+       *AR9_RCU_RST_REQ |= 1;
+       udelay(200000);
+       *AR9_RCU_RST_REQ &= (unsigned long)~1;
+       udelay(1000);
+
+#ifdef CONFIG_EXTRA_SWITCH
+       if (external_switch_init()<0)
+               return -1;
+#endif /* CONFIG_EXTRA_SWITCH */
+#endif /* CONFIG_IFX_ETOP */
+
+       return 0;
+}
+
+static void ar9_configure_sw_port(u8 port, u8 mode)
+{
+       if(port)
+       {
+               if (mode  == 1) //MII mode
+               {
+                       *AR9_GPIO_P2_ALTSEL0 = *AR9_GPIO_P2_ALTSEL0 | (0xf000);
+                       *AR9_GPIO_P2_ALTSEL1 = *AR9_GPIO_P2_ALTSEL1 & ~(0xf000);
+                       *AR9_GPIO_P2_DIR = (*AR9_GPIO_P2_DIR & ~(0xf000)) | 0x2000;
+                       *AR9_GPIO_P2_OD = *AR9_GPIO_P2_OD | 0x2000;
+               }
+               else if(mode == 2 || mode == 6) //Rev Mii mode
+               {
+                       *AR9_GPIO_P2_ALTSEL0 = *AR9_GPIO_P2_ALTSEL0 | (0xf000);
+                       *AR9_GPIO_P2_ALTSEL1 = *AR9_GPIO_P2_ALTSEL1 & ~(0xf000);
+                       *AR9_GPIO_P2_DIR = (*AR9_GPIO_P2_DIR | (0xf000)) & ~0x2000;
+                       *AR9_GPIO_P2_OD = *AR9_GPIO_P2_OD | 0xd000;
+               }
+       }
+       else //Port 0
+       {
+               if (mode  == 1) //MII mode
+               {
+                       *AR9_GPIO_P2_ALTSEL0 = *AR9_GPIO_P2_ALTSEL0 | (0x0303);
+                       *AR9_GPIO_P2_ALTSEL1 = *AR9_GPIO_P2_ALTSEL1 & ~(0x0303);
+                       *AR9_GPIO_P2_DIR = (*AR9_GPIO_P2_DIR & ~(0x0303)) | 0x0100;
+                       *AR9_GPIO_P2_OD = *AR9_GPIO_P2_OD | 0x0100;
+               }
+               else if(mode ==2 || mode ==6) //Rev Mii mode
+               {
+                       *AR9_GPIO_P2_ALTSEL0 = *AR9_GPIO_P2_ALTSEL0 | (0x0303);
+                       *AR9_GPIO_P2_ALTSEL1 = *AR9_GPIO_P2_ALTSEL1 & ~(0x0303);
+                       *AR9_GPIO_P2_DIR = (*AR9_GPIO_P2_DIR | (0x0303)) & ~0x0100;
+                       *AR9_GPIO_P2_OD = *AR9_GPIO_P2_OD | 0x0203;
+               }
+       }
+}
+
+/*
+Call this function to place either MAC port 0 or 1 into working mode.
+Parameters:
+port - select ports 0 or 1.
+state of interface : state
+0: RGMII
+1: MII
+2: Rev MII
+3: Reduce MII (input clock)
+4: RGMII 100mb
+5: Reserve
+6: Turbo Rev MII
+7: Reduce MII (output clock)
+*/
+void ar9_enable_sw_port(u8 port, u8 state)
+{
+       REG32(AR9_SW_GCTL0) |= 0x80000000;
+       if (port == 0)
+       {
+               REG32(AR9_SW_RGMII_CTL) &= 0xffcffc0e ;
+       //#if AR9_REFBOARD_TANTOS
+               REG32(0xbf20302c) &= 0xffff81ff;
+               REG32(0xbf20302c) |= 4<<9 ;
+       //#endif
+               REG32(AR9_SW_RGMII_CTL) |= ((u32)(state &0x3))<<8;
+               if((state &0x3) == 0)
+               {
+                       REG32(AR9_SW_RGMII_CTL) &= 0xfffffff3;
+                       if(state == 4)
+                               REG32(AR9_SW_RGMII_CTL) |= 0x4;
+                       else
+                               REG32(AR9_SW_RGMII_CTL) |= 0x8;
+               }
+               if(state == 6)
+                       REG32(AR9_SW_RGMII_CTL) |= ((u32) (1<<20));
+               if(state == 7)
+                       REG32(AR9_SW_RGMII_CTL) |= ((u32) (1<<21));
+       }
+//  *AR9_PPE32_ETOP_CFG = *AR9_PPE32_ETOP_CFG & 0xfffffffe;
+       else
+       {
+               REG32(AR9_SW_RGMII_CTL) &= 0xff303fff ;
+               REG32(AR9_SW_RGMII_CTL) |= ((u32)(state &0x3))<<18;
+               if((state &0x3) == 0)
+               {
+                       REG32(AR9_SW_RGMII_CTL) &= 0xffffcfff;
+                       if(state == 4)
+                               REG32(AR9_SW_RGMII_CTL) |= 0x1000;
+                       else
+                               REG32(AR9_SW_RGMII_CTL) |= 0x2000;
+               }
+               if(state == 6)
+                       REG32(AR9_SW_RGMII_CTL) |= ((u32) (1<<22));
+               if(state == 7)
+                       REG32(AR9_SW_RGMII_CTL) |= ((u32) (1<<23));
+       }
+}
+
+void pci_reset(void)
+{
+       int i,j;
+#define AR9_V1_PCI_RST_FIX 1
+#if AR9_V1_PCI_RST_FIX // 5th June 2008 Add GPIO19 to control EJTAG_TRST
+       *AR9_GPIO_P1_ALTSEL0 = *AR9_GPIO_P1_ALTSEL0 & ~0x8;
+       *AR9_GPIO_P1_ALTSEL1 = *AR9_GPIO_P1_ALTSEL1 & ~0x8;
+       *AR9_GPIO_P1_DIR = *AR9_GPIO_P1_DIR | 0x8;
+       *AR9_GPIO_P1_OD = *AR9_GPIO_P1_OD | 0x8;
+       *AR9_GPIO_P1_OUT = *AR9_GPIO_P1_OUT | 0x8;
+       *AR9_GPIO_P0_ALTSEL0 = *AR9_GPIO_P0_ALTSEL0 & ~0x4000;
+       *AR9_GPIO_P0_ALTSEL1 = *AR9_GPIO_P0_ALTSEL1 & ~0x4000;
+       *AR9_GPIO_P0_DIR = *AR9_GPIO_P0_DIR | 0x4000;
+       *AR9_GPIO_P0_OD = *AR9_GPIO_P0_OD | 0x4000;
+       for(j=0;j<5;j++) {
+               *AR9_GPIO_P0_OUT = *AR9_GPIO_P0_OUT & ~0x4000;
+               for(i=0;i<0x10000;i++);
+               *AR9_GPIO_P0_OUT = *AR9_GPIO_P0_OUT | 0x4000;
+               for(i=0;i<0x10000;i++);
+       }
+       *AR9_GPIO_P0_DIR = *AR9_GPIO_P0_DIR &  ~0x4000;
+       *AR9_GPIO_P1_DIR = *AR9_GPIO_P1_DIR &  ~0x8;
+#endif
+}
+
+static u16 ar9_smi_reg_read(u16 reg)
+{
+       int i;
+       while(REG32(AR9_SW_MDIO_CTL) & 0x8000);
+       REG32(AR9_SW_MDIO_CTL) = 0x8000| 0x2<<10 | ((u32) (reg&0x3ff)) ; /*0x10=MDIO_OP_READ*/
+       for(i=0;i<0x3fff;i++);
+       udelay(50);
+        while(REG32(AR9_SW_MDIO_CTL) & 0x8000);
+       return((u16) (REG32(AR9_SW_MDIO_DATA)));
+}
+
+static u16 ar9_smi_reg_write(u16 reg, u16 data)
+{
+       int i;
+       while(REG32(AR9_SW_MDIO_CTL) & 0x8000);
+       REG32(AR9_SW_MDIO_CTL) = 0x8000| (((u32) data)<<16) | 0x01<<10 | ((u32) (reg&0x3ff)) ; /*0x01=MDIO_OP_WRITE*/
+       for(i=0;i<0x3fff;i++);
+               udelay(50);
+       return 0;
+}
+
+static void ar9_sw_chip_init(u8 port, u8 mode)
+{
+       int i;
+       u16 chipid;
+
+       debug("\nsearching for switches ... ");
+
+       asm("sync");
+       pci_reset();
+
+       /* 25mhz clock out */
+       *AR9_CGU_IFCCR &= ~(3<<10);
+       *AR9_GPIO_P0_ALTSEL0 = *AR9_GPIO_P0_ALTSEL0 | (1<<3);
+       *AR9_GPIO_P0_ALTSEL1 = *AR9_GPIO_P0_ALTSEL1 & ~(1<<3);
+       *AR9_GPIO_P0_DIR = *AR9_GPIO_P0_DIR  | (1<<3);
+       *AR9_GPIO_P0_OD = *AR9_GPIO_P0_OD | (1<<3);
+       *AR9_GPIO_P2_ALTSEL0 = *AR9_GPIO_P2_ALTSEL0 & ~(1<<0);
+       *AR9_GPIO_P2_ALTSEL1 = *AR9_GPIO_P2_ALTSEL1 & ~(1<<0);
+       *AR9_GPIO_P2_DIR = *AR9_GPIO_P2_DIR  | (1<<0);
+       *AR9_GPIO_P2_OD = *AR9_GPIO_P2_OD | (1<<0);
+
+       *AR9_PMU_PWDCR = (*AR9_PMU_PWDCR & 0xFFFBDFDF) ; 
+       *AR9_PMU_PWDCR = (*AR9_PMU_PWDCR & ~(AR9_PMU_DMA | AR9_PMU_SWITCH));
+       *AR9_PMU_PWDCR = (*AR9_PMU_PWDCR | AR9_PMU_USB0 | AR9_PMU_USB0_P);
+
+       *AR9_GPIO_P2_OUT &= ~(1<<0);
+       asm("sync");
+
+       ar9_configure_sw_port(port, mode);
+       ar9_enable_sw_port(port, mode);
+       REG32(AR9_SW_P0_CTL) |= 0x400000; /* disable mdio polling for tantos */
+       asm("sync");
+
+       /*GPIO 55(P3.7) used as output, set high*/
+       *AR9_GPIO_P3_OD |=(1<<7);
+       *AR9_GPIO_P3_DIR |= (1<<7);
+       *AR9_GPIO_P3_ALTSEL0 &=~(1<<7);
+       *AR9_GPIO_P3_ALTSEL1 &=~(1<<7);
+       asm("sync");
+       udelay(10);
+
+       *AR9_GPIO_P3_OUT &= ~(1<<7);
+       for(i=0;i<1000;i++)
+               udelay(110);
+       *AR9_GPIO_P3_OUT |=(1<<7);
+       udelay(100);
+
+       if(port==0)
+               REG32(AR9_SW_P0_CTL) |= 0x40001;
+       else
+               REG32(AR9_SW_P1_CTL) |= 0x40001;
+
+       REG32(AR9_SW_P2_CTL) |= 0x40001;
+       REG32(AR9_SW_PMAC_HD_CTL) |= 0x40000; /* enable CRC */
+
+       *AR9_GPIO_P2_ALTSEL0 = *AR9_GPIO_P2_ALTSEL0 | (0xc00);
+       *AR9_GPIO_P2_ALTSEL1 = *AR9_GPIO_P2_ALTSEL1 & ~(0xc00);
+       *AR9_GPIO_P2_DIR = *AR9_GPIO_P2_DIR  | 0xc00;
+       *AR9_GPIO_P2_OD = *AR9_GPIO_P2_OD | 0xc00;
+
+       asm("sync");
+       chipid = (unsigned short)(ar9_smi_reg_read(0x101));
+       printf("\nswitch chip id=%08x\n",chipid);
+       if (chipid != ID_TANTOS) {
+               debug("whatever detected\n");
+               ar9_smi_reg_write(0x1,0x840f);
+               ar9_smi_reg_write(0x3,0x840f);
+               ar9_smi_reg_write(0x5,0x840f);
+               ar9_smi_reg_write(0x7,0x840f);
+               ar9_smi_reg_write(0x8,0x840f);
+               ar9_smi_reg_write(0x12,0x3602);
+#ifdef CLK_OUT2_25MHZ
+               ar9_smi_reg_write(0x33,0x4000);
+#endif
+       } else { // Tantos switch ship
+               debug("Tantos switch detected\n");
+               ar9_smi_reg_write(0xa1,0x0004); /*port 5 force link up*/
+               ar9_smi_reg_write(0xc1,0x0004); /*port 6 force link up*/
+               ar9_smi_reg_write(0xf5,0x0BBB); /*port 4 duplex mode, flow control enable,1000Mbit/s*/
+                                                                               /*port 5 duplex mode, flow control enable, 1000Mbit/s*/
+                                                                               /*port 6 duplex mode, flow control enable, 1000Mbit/s*/
+       }
+       asm("sync");
+
+       /*reset GPHY*/
+       mdelay(200);
+       *AR9_RCU_RST_REQ |= (AR9_RCU_RST_REQ_DMA | AR9_RCU_RST_REQ_PPE) ;
+       udelay(50);
+       *AR9_GPIO_P2_OUT |= (1<<0);
+}
+
+static void ar9_dma_init(void)
+{
+       /* select port */
+       *AR9_DMA_PS = 0;
+
+       /* 
+       TXWGT 14:12 rw Port Weight for Transmit Direction (the default value \93001\94)
+
+       TXENDI 11:10 rw Endianness for Transmit Direction
+       Determine a byte swap between memory interface (left hand side) and
+       peripheral interface (right hand side).
+       00B B0_B1_B2_B3 No byte switching
+       01B B1_B0_B3_B2 B0B1B2B3 => B1B0B3B2
+       10B B2_B3_B0_B1 B0B1B2B3 => B2B3B0B1
+       
+       RXENDI 9:8 rw Endianness for Receive Direction
+       Determine a byte swap between peripheral (left hand side) and memory
+       interface (right hand side).
+       00B B0_B1_B2_B3 No byte switching
+       01B B1_B0_B3_B2 B0B1B2B3 => B1B0B3B2
+       10B B2_B3_B0_B1 B0B1B2B3 => B2B3B0B1
+       11B B3_B2_B1_B0 B0B1B2B3 => B3B2B1B0 
+
+       TXBL 5:4 rw Burst Length for Transmit Direction
+       Selects burst length for TX direction.
+       Others are reserved and will result in 2_WORDS burst length.
+       01B 2_WORDS 2 words
+       10B 4_WORDS 4 words
+       11B 8_WORDS 8 words
+
+       RXBL 3:2 rw Burst Length for Receive Direction
+       Selects burst length for RX direction.
+       Others are reserved and will result in 2_WORDS burst length.
+       01B 2_WORDS 2 words
+       10B 4_WORDS 4 words
+       11B 8_WORDS 8 words     
+       */
+       *AR9_DMA_PCTRL = 0x1f28;
+}
+
+#ifdef CONFIG_EXTRA_SWITCH
+static int external_switch_init(void)
+{
+       ar9_sw_chip_init(0, RGMII_MODE);
+
+       ar9_dma_init();
+
+       return 0;
+}
+#endif /* CONFIG_EXTRA_SWITCH */
+
+#if defined(CONFIG_CMD_HTTPD)
+
+static int image_info (ulong addr)
+{
+   void *hdr = (void *)addr;
+
+   printf ("\n## Checking Image at %08lx ...\n", addr);
+
+   switch (genimg_get_format (hdr)) {
+   case IMAGE_FORMAT_LEGACY:
+      puts ("   Legacy image found\n");
+      if (!image_check_magic (hdr)) {
+         puts ("   Bad Magic Number\n");
+         return 1;
+      }
+
+      if (!image_check_hcrc (hdr)) {
+         puts ("   Bad Header Checksum\n");
+         return 1;
+      }
+
+      image_print_contents (hdr);
+
+      puts ("   Verifying Checksum ... ");
+      if (!image_check_dcrc (hdr)) {
+         puts ("   Bad Data CRC\n");
+         return 1;
+      }
+      puts ("OK\n");
+      return 0;
+#if defined(CONFIG_FIT)
+   case IMAGE_FORMAT_FIT:
+      puts ("   FIT image found\n");
+
+      if (!fit_check_format (hdr)) {
+         puts ("Bad FIT image format!\n");
+         return 1;
+      }
+
+      fit_print_contents (hdr);
+
+      if (!fit_all_image_check_hashes (hdr)) {
+         puts ("Bad hash in FIT image!\n");
+         return 1;
+      }
+
+      return 0;
+#endif
+   default:
+      puts ("Unknown image format!\n");
+      break;
+   }
+
+   return 1;
+}
+
+int do_http_upgrade(const unsigned char *data, const ulong size)
+{
+       /* check the image */
+       if(image_info(data)) {
+               return -1;
+       }
+       /* write the image to the flash */
+       puts("http ugrade ...\n");
+       return 0;
+}
+
+int do_http_progress(const int state)
+{
+       /* toggle LED's here */
+       switch(state) {
+               case HTTP_PROGRESS_START:
+               puts("http start\n");
+               break;
+               case HTTP_PROGRESS_TIMEOUT:
+               break;
+               case HTTP_PROGRESS_UPLOAD_READY:
+               puts("http upload ready\n");
+               break;
+               case HTTP_PROGRESS_UGRADE_READY:
+               puts("http ugrade ready\n");
+               break;
+               case HTTP_PROGRESS_UGRADE_FAILED:
+               puts("http ugrade failed\n");
+               break;
+       }
+       return 0;
+}
+
+unsigned long do_http_tmp_address(void)
+{
+       char *s = getenv ("ram_addr");
+       if (s) {
+               ulong tmp = simple_strtoul (s, NULL, 16);
+               return tmp;
+       }
+       return 0 /*0x80a00000*/;
+}
+
+#endif
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