]> git.sur5r.net Git - u-boot/blobdiff - board/keymile/km_arm/km_arm.c
powerpc/82xx: add SDRAM detection for km82xx
[u-boot] / board / keymile / km_arm / km_arm.c
index 5da856fabc4fd9e32eb90abe565315c52ee69287..2b2ca393765818a2dc2898d159140834560d3ac8 100644 (file)
@@ -33,7 +33,9 @@
 #include <nand.h>
 #include <netdev.h>
 #include <miiphy.h>
+#include <spi.h>
 #include <asm/io.h>
+#include <asm/arch/cpu.h>
 #include <asm/arch/kirkwood.h>
 #include <asm/arch/mpp.h>
 
@@ -112,7 +114,7 @@ u32 kwmpp_config[] = {
        0
 };
 
-#if defined(CONFIG_MGCOGE3UN)
+#if defined(CONFIG_KM_MGCOGE3UN)
 /*
  * Wait for startup OK from mgcoge3ne
  */
@@ -132,10 +134,10 @@ int startup_allowed(void)
 }
 #endif
 
-#if (defined(CONFIG_MGCOGE3UN)|defined(CONFIG_PORTL2))
+#if (defined(CONFIG_KM_PIGGY4_88E6061)|defined(CONFIG_KM_PIGGY4_88E6352))
 /*
- * These two boards have always ethernet present. Its connected to the mv
- * switch.
+ * All boards with PIGGY4 connected via a simple switch have ethernet always
+ * present.
  */
 int ethernet_present(void)
 {
@@ -200,14 +202,20 @@ int misc_init_r(void)
                printf("Overwriting MACH_TYPE with %d!!!\n", mach_type);
                gd->bd->bi_arch_number = mach_type;
        }
-#if defined(CONFIG_MGCOGE3UN)
+#if defined(CONFIG_KM_MGCOGE3UN)
        char *wait_for_ne;
        wait_for_ne = getenv("waitforne");
        if (wait_for_ne != NULL) {
                if (strcmp(wait_for_ne, "true") == 0) {
                        int cnt = 0;
+                       int abort = 0;
                        puts("NE go: ");
                        while (startup_allowed() == 0) {
+                               if (tstc()) {
+                                       (void) getc(); /* consume input */
+                                       abort = 1;
+                                       break;
+                               }
                                udelay(200000);
                                cnt++;
                                if (cnt == 5)
@@ -217,7 +225,10 @@ int misc_init_r(void)
                                        puts("    \b\b\b\b");
                                }
                        }
-                       puts("OK\n");
+                       if (abort == 1)
+                               printf("\nAbort waiting for ne\n");
+                       else
+                               puts("OK\n");
                }
        }
 #endif
@@ -232,96 +243,99 @@ int misc_init_r(void)
 
 int board_early_init_f(void)
 {
+#if defined(CONFIG_SOFT_I2C)
        u32 tmp;
 
-       kirkwood_mpp_conf(kwmpp_config);
+       /* set the 2 bitbang i2c pins as output gpios */
+       tmp = readl(KW_GPIO0_BASE + 4);
+       writel(tmp & (~KM_KIRKWOOD_SOFT_I2C_GPIOS) , KW_GPIO0_BASE + 4);
+#endif
+
+       kirkwood_mpp_conf(kwmpp_config, NULL);
+       return 0;
+}
+
+int board_init(void)
+{
+       /*
+        * arch number of board
+        */
+       gd->bd->bi_arch_number = MACH_TYPE_KM_KIRKWOOD;
+
+       /* address of boot parameters */
+       gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
 
        /*
-        * The FLASH_GPIO_PIN switches between using a
+        * The KM_FLASH_GPIO_PIN switches between using a
         * NAND or a SPI FLASH. Set this pin on start
         * to NAND mode.
         */
-       tmp = readl(KW_GPIO0_BASE);
-       writel(tmp | FLASH_GPIO_PIN , KW_GPIO0_BASE);
-       tmp = readl(KW_GPIO0_BASE + 4);
-       writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE + 4);
+       kw_gpio_set_valid(KM_FLASH_GPIO_PIN, 1);
+       kw_gpio_direction_output(KM_FLASH_GPIO_PIN, 1);
 
 #if defined(CONFIG_SOFT_I2C)
-       /* init the GPIO for I2C Bitbang driver */
+       /*
+        * Reinit the GPIO for I2C Bitbang driver so that the now
+        * available gpio framework is consistent. The calls to
+        * direction output in are not necessary, they are already done in
+        * board_early_init_f
+        */
        kw_gpio_set_valid(KM_KIRKWOOD_SDA_PIN, 1);
        kw_gpio_set_valid(KM_KIRKWOOD_SCL_PIN, 1);
-       kw_gpio_direction_output(KM_KIRKWOOD_SDA_PIN, 0);
-       kw_gpio_direction_output(KM_KIRKWOOD_SCL_PIN, 0);
 #endif
+
 #if defined(CONFIG_SYS_EEPROM_WREN)
        kw_gpio_set_valid(KM_KIRKWOOD_ENV_WP, 38);
        kw_gpio_direction_output(KM_KIRKWOOD_ENV_WP, 1);
 #endif
 
+#if defined(CONFIG_KM_FPGA_CONFIG)
+       trigger_fpga_config();
+#endif
+
        return 0;
 }
 
-int board_init(void)
+int board_late_init(void)
 {
-       /*
-        * arch number of board
-        */
-       gd->bd->bi_arch_number = MACH_TYPE_KM_KIRKWOOD;
-
-       /* address of boot parameters */
-       gd->bd->bi_boot_params = kw_sdram_bar(0) + 0x100;
+#if defined(CONFIG_KMCOGE5UN)
+/* I/O pin to erase flash RGPP09 = MPP43 */
+#define KM_FLASH_ERASE_ENABLE  43
+       u8 dip_switch = kw_gpio_get_value(KM_FLASH_ERASE_ENABLE);
+
+       /* if pin 1 do full erase */
+       if (dip_switch != 0) {
+               /* start bootloader */
+               puts("DIP:   Enabled\n");
+               setenv("actual_bank", "0");
+       }
+#endif
 
+#if defined(CONFIG_KM_FPGA_CONFIG)
+       wait_for_fpga_config();
+       fpga_reset();
+       toggle_eeprom_spi_bus();
+#endif
        return 0;
 }
 
-#if defined(CONFIG_CMD_SF)
-int do_spi_toggle(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+int board_spi_claim_bus(struct spi_slave *slave)
 {
-       u32 tmp;
-       if (argc < 2)
-               return cmd_usage(cmdtp);
-
-       if ((strcmp(argv[1], "off") == 0)) {
-               printf("SPI FLASH disabled, NAND enabled\n");
-               /* Multi-Purpose Pins Functionality configuration */
-               kwmpp_config[0] = MPP0_NF_IO2;
-               kwmpp_config[1] = MPP1_NF_IO3;
-               kwmpp_config[2] = MPP2_NF_IO4;
-               kwmpp_config[3] = MPP3_NF_IO5;
-
-               kirkwood_mpp_conf(kwmpp_config);
-               tmp = readl(KW_GPIO0_BASE);
-               writel(tmp | FLASH_GPIO_PIN , KW_GPIO0_BASE);
-       } else if ((strcmp(argv[1], "on") == 0)) {
-               printf("SPI FLASH enabled, NAND disabled\n");
-               /* Multi-Purpose Pins Functionality configuration */
-               kwmpp_config[0] = MPP0_SPI_SCn;
-               kwmpp_config[1] = MPP1_SPI_MOSI;
-               kwmpp_config[2] = MPP2_SPI_SCK;
-               kwmpp_config[3] = MPP3_SPI_MISO;
-
-               kirkwood_mpp_conf(kwmpp_config);
-               tmp = readl(KW_GPIO0_BASE);
-               writel(tmp & (~FLASH_GPIO_PIN) , KW_GPIO0_BASE);
-       } else {
-               return cmd_usage(cmdtp);
-       }
+       kw_gpio_set_value(KM_FLASH_GPIO_PIN, 0);
 
        return 0;
 }
 
-U_BOOT_CMD(
-       spitoggle,      2,      0,      do_spi_toggle,
-       "En-/disable SPI FLASH access",
-       "<on|off> - Enable (on) or disable (off) SPI FLASH access\n"
-       );
-#endif
+void board_spi_release_bus(struct spi_slave *slave)
+{
+       kw_gpio_set_value(KM_FLASH_GPIO_PIN, 1);
+}
 
 int dram_init(void)
 {
        /* dram_init must store complete ramsize in gd->ram_size */
        /* Fix this */
-       gd->ram_size = get_ram_size((volatile void *)kw_sdram_bar(0),
+       gd->ram_size = get_ram_size((void *)kw_sdram_bar(0),
                                kw_sdram_bs(0));
        return 0;
 }
@@ -337,15 +351,15 @@ void dram_init_banksize(void)
        }
 }
 
-#if (defined(CONFIG_MGCOGE3UN)|defined(CONFIG_PORTL2))
+#if (defined(CONFIG_KM_PIGGY4_88E6061))
 
-#define        PHY_LED_SEL     0x18
-#define PHY_LED0_LINK  (0x5)
-#define PHY_LED1_ACT   (0x8<<4)
-#define PHY_LED2_INT   (0xe<<8)
-#define        PHY_SPEC_CTRL   0x1c
+#define        PHY_LED_SEL_REG         0x18
+#define PHY_LED0_LINK          (0x5)
+#define PHY_LED1_ACT           (0x8<<4)
+#define PHY_LED2_INT           (0xe<<8)
+#define        PHY_SPEC_CTRL_REG       0x1c
 #define PHY_RGMII_CLK_STABLE   (0x1<<10)
-#define PHY_CLSA       (0x1<<1)
+#define PHY_CLSA               (0x1<<1)
 
 /* Configure and enable MV88E3018 PHY */
 void reset_phy(void)
@@ -357,15 +371,15 @@ void reset_phy(void)
                return;
 
        /* RGMII clk transition on data stable */
-       if (miiphy_read(name, CONFIG_PHY_BASE_ADR, PHY_SPEC_CTRL, &reg) != 0)
+       if (!miiphy_read(name, CONFIG_PHY_BASE_ADR, PHY_SPEC_CTRL_REG, &reg))
                printf("Error reading PHY spec ctrl reg\n");
-       if (miiphy_write(name, CONFIG_PHY_BASE_ADR, PHY_SPEC_CTRL,
-               reg | PHY_RGMII_CLK_STABLE | PHY_CLSA) != 0)
+       if (!miiphy_write(name, CONFIG_PHY_BASE_ADR, PHY_SPEC_CTRL_REG,
+               reg | PHY_RGMII_CLK_STABLE | PHY_CLSA))
                printf("Error writing PHY spec ctrl reg\n");
 
        /* leds setup */
-       if (miiphy_write(name, CONFIG_PHY_BASE_ADR, PHY_LED_SEL,
-               PHY_LED0_LINK | PHY_LED1_ACT | PHY_LED2_INT) != 0)
+       if (!miiphy_write(name, CONFIG_PHY_BASE_ADR, PHY_LED_SEL_REG,
+               PHY_LED0_LINK | PHY_LED1_ACT | PHY_LED2_INT))
                printf("Error writing PHY LED reg\n");
 
        /* reset the phy */
@@ -395,32 +409,53 @@ int hush_init_var(void)
 #endif
 
 #if defined(CONFIG_BOOTCOUNT_LIMIT)
+const ulong patterns[]      = {        0x00000000,
+                               0xFFFFFFFF,
+                               0xFF00FF00,
+                               0x0F0F0F0F,
+                               0xF0F0F0F0};
+const ulong NBR_OF_PATTERNS = ARRAY_SIZE(patterns);
+const ulong OFFS_PATTERN    = 3;
+const ulong REPEAT_PATTERN  = 1000;
+
 void bootcount_store(ulong a)
 {
-       volatile ulong *save_addr;
-       volatile ulong size = 0;
+       ulong *save_addr;
+       ulong size = 0;
        int i;
-       for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+
+       for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
                size += gd->bd->bi_dram[i].size;
-       }
-       save_addr = (ulong*)(size - BOOTCOUNT_ADDR);
+       save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
        writel(a, save_addr);
        writel(BOOTCOUNT_MAGIC, &save_addr[1]);
+
+       for (i = 0; i < REPEAT_PATTERN; i++)
+               writel(patterns[i % NBR_OF_PATTERNS],
+                       &save_addr[i+OFFS_PATTERN]);
+
 }
 
 ulong bootcount_load(void)
 {
-       volatile ulong *save_addr;
-       volatile ulong size = 0;
-       int i;
-       for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
+       ulong *save_addr;
+       ulong size = 0;
+       ulong counter = 0;
+       int i, tmp;
+
+       for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
                size += gd->bd->bi_dram[i].size;
+       save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
+
+       counter = readl(&save_addr[0]);
+
+       /* Is the counter reliable, check in the big pattern for bit errors */
+       for (i = 0; (i < REPEAT_PATTERN) && (counter != 0); i++) {
+               tmp = readl(&save_addr[i+OFFS_PATTERN]);
+               if (tmp != patterns[i % NBR_OF_PATTERNS])
+                       counter = 0;
        }
-       save_addr = (ulong*)(size - BOOTCOUNT_ADDR);
-       if (readl(&save_addr[1]) != BOOTCOUNT_MAGIC)
-               return 0;
-       else
-               return readl(save_addr);
+       return counter;
 }
 #endif
 
@@ -448,6 +483,43 @@ int get_scl(void)
 }
 #endif
 
+#if defined(CONFIG_POST)
+
+#define KM_POST_EN_L   44
+#define POST_WORD_OFF  8
+
+int post_hotkeys_pressed(void)
+{
+#if defined(CONFIG_KM_COGE5UN)
+       return kw_gpio_get_value(KM_POST_EN_L);
+#else
+       return !kw_gpio_get_value(KM_POST_EN_L);
+#endif
+}
+
+ulong post_word_load(void)
+{
+       void* addr = (void *) (gd->ram_size - BOOTCOUNT_ADDR + POST_WORD_OFF);
+       return in_le32(addr);
+
+}
+void post_word_store(ulong value)
+{
+       void* addr = (void *) (gd->ram_size - BOOTCOUNT_ADDR + POST_WORD_OFF);
+       out_le32(addr, value);
+}
+
+int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
+{
+       *vstart = CONFIG_SYS_SDRAM_BASE;
+
+       /* we go up to relocation plus a 1 MB margin */
+       *size = CONFIG_SYS_TEXT_BASE - (1<<20);
+
+       return 0;
+}
+#endif
+
 #if defined(CONFIG_SYS_EEPROM_WREN)
 int eeprom_write_enable(unsigned dev_addr, int state)
 {