Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / csb272 / csb272.c

diff --git a/qemu/roms/u-boot/board/csb272/csb272.c b/qemu/roms/u-boot/board/csb272/csb272.c
new file mode 100644 (file)
index 0000000..dc2c950
--- /dev/null
+++ b/qemu/roms/u-boot/board/csb272/csb272.c
@@ -0,0 +1,171 @@
+/*
+ * (C) Copyright 2004
+ * Tolunay Orkun, Nextio Inc., torkun@nextio.com
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <i2c.h>
+#include <miiphy.h>
+#include <asm/ppc4xx-emac.h>
+
+void sdram_init(void);
+
+/*
+ * Configuration data for AMIS FS6377-01 Programmable 3-PLL Clock Generator
+ *
+ * CLKA output => Epson LCD Controller
+ * CLKB output => Not Connected
+ * CLKC output => Ethernet
+ * CLKD output => UART external clock
+ *
+ * Note: these values are obtained from device after init by micromonitor
+*/
+uchar pll_fs6377_regs[16] = {
+       0x28, 0xef, 0x53, 0x03, 0x4b, 0x80, 0x32, 0x80,
+       0x94, 0x32, 0x80, 0xd4, 0x56, 0xf6, 0xf6, 0xe0 };
+
+/*
+ * pll_init: Initialize AMIS IC FS6377-01 PLL
+ *
+ * PLL supplies Epson LCD Clock, Ethernet Clock and UART external clock
+ *
+ */
+int pll_init(void)
+{
+       i2c_set_bus_num(0);
+
+       return  i2c_write(CONFIG_SYS_I2C_PLL_ADDR, 0, 1,
+               (uchar *) pll_fs6377_regs, sizeof(pll_fs6377_regs));
+}
+
+/*
+ * board_early_init_f: do early board initialization
+ *
+ */
+int board_early_init_f(void)
+{
+       /* initialize PLL so UART, LCD, Ethernet clocked at correctly */
+       (void) get_clocks();
+       pll_init();
+
+   /*-------------------------------------------------------------------------+
+   | Interrupt controller setup for the Walnut board.
+   | Note: IRQ 0-15  405GP internally generated; active high; level sensitive
+   |       IRQ 16    405GP internally generated; active low; level sensitive
+   |       IRQ 17-24 RESERVED
+   |       IRQ 25 (EXT IRQ 0) FPGA; active high; level sensitive
+   |       IRQ 26 (EXT IRQ 1) SMI; active high; level sensitive
+   |       IRQ 27 (EXT IRQ 2) Not Used
+   |       IRQ 28 (EXT IRQ 3) PCI SLOT 3; active low; level sensitive
+   |       IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
+   |       IRQ 30 (EXT IRQ 5) PCI SLOT 1; active low; level sensitive
+   |       IRQ 31 (EXT IRQ 6) PCI SLOT 0; active low; level sensitive
+   | Note for Walnut board:
+   |       An interrupt taken for the FPGA (IRQ 25) indicates that either
+   |       the Mouse, Keyboard, IRDA, or External Expansion caused the
+   |       interrupt. The FPGA must be read to determine which device
+   |       caused the interrupt. The default setting of the FPGA clears
+   |
+   +-------------------------------------------------------------------------*/
+
+       mtdcr (UIC0SR, 0xFFFFFFFF);   /* clear all ints */
+       mtdcr (UIC0ER, 0x00000000);   /* disable all ints */
+       mtdcr (UIC0CR, 0x00000000);   /* set all to be non-critical */
+       mtdcr (UIC0PR, 0xFFFFFF83);   /* set int polarities */
+       mtdcr (UIC0TR, 0x10000000);   /* set int trigger levels */
+       mtdcr (UIC0VCR, 0x00000001);  /* set vect base=0,INT0 highest priority */
+       mtdcr (UIC0SR, 0xFFFFFFFF);   /* clear all ints */
+
+       mtebc (EBC0_CFG, 0xa8400000);   /* EBC always driven */
+
+       return 0; /* success */
+}
+
+/*
+ * checkboard: identify/verify the board we are running
+ *
+ * Remark: we just assume it is correct board here!
+ *
+ */
+int checkboard(void)
+{
+       printf("BOARD: Cogent CSB272\n");
+
+       return 0; /* success */
+}
+
+/*
+ * initram: Determine the size of mounted DRAM
+ *
+ * Size is determined by reading SDRAM configuration registers as
+ * configured by initialization code
+ *
+ */
+phys_size_t initdram (int board_type)
+{
+       ulong tot_size;
+       ulong bank_size;
+       ulong tmp;
+
+       /*
+        * ToDo: Move the asm init routine sdram_init() to this C file,
+        * or even better use some common ppc4xx code available
+        * in arch/powerpc/cpu/ppc4xx
+        */
+       sdram_init();
+
+       tot_size = 0;
+
+       mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
+       tmp = mfdcr (SDRAM0_CFGDATA);
+       if (tmp & 0x00000001) {
+               bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+               tot_size += bank_size;
+       }
+
+       mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
+       tmp = mfdcr (SDRAM0_CFGDATA);
+       if (tmp & 0x00000001) {
+               bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+               tot_size += bank_size;
+       }
+
+       mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
+       tmp = mfdcr (SDRAM0_CFGDATA);
+       if (tmp & 0x00000001) {
+               bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+               tot_size += bank_size;
+       }
+
+       mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
+       tmp = mfdcr (SDRAM0_CFGDATA);
+       if (tmp & 0x00000001) {
+               bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
+               tot_size += bank_size;
+       }
+
+       return tot_size;
+}
+
+/*
+ * last_stage_init: final configurations (such as PHY etc)
+ *
+ */
+int last_stage_init(void)
+{
+       /* initialize the PHY */
+       miiphy_reset("ppc_4xx_eth0", CONFIG_PHY_ADDR);
+
+       /* AUTO neg */
+       miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, MII_BMCR,
+                       BMCR_ANENABLE | BMCR_ANRESTART);
+
+       /* LEDs     */
+       miiphy_write("ppc_4xx_eth0", CONFIG_PHY_ADDR, MII_NWAYTEST, 0x0d08);
+
+
+       return 0; /* success */
+}