--- /dev/null
+/*
+ * (C) Copyright 2009 Wolfgang Denk <wd@denx.de>
+ * (C) Copyright 2009 Dave Srl www.dave.eu
+ * (C) Copyright 2009 Stefan Roese <sr@denx.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/bitops.h>
+#include <command.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/mpc512x.h>
+#include <fdt_support.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int eeprom_write_enable(unsigned dev_addr, int state)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+
+ if (dev_addr != CONFIG_SYS_I2C_EEPROM_ADDR)
+ return -1;
+
+ if (state == 0)
+ setbits_be32(&im->gpio.gpdat, 0x00100000);
+ else
+ clrbits_be32(&im->gpio.gpdat, 0x00100000);
+
+ return 0;
+}
+
+int board_early_init_f(void)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ int i;
+
+ /*
+ * Initialize Local Window for boot access
+ */
+ out_be32(&im->sysconf.lpbaw,
+ CSAW_START(0xffb00000) | CSAW_STOP(0xffb00000, 0x00010000));
+ sync_law(&im->sysconf.lpbaw);
+
+ /*
+ * Configure MSCAN clocks
+ */
+ for (i=0; i<4; ++i) {
+ out_be32(&im->clk.msccr[i], 0x00300000);
+ out_be32(&im->clk.msccr[i], 0x00310000);
+ }
+
+ /*
+ * Configure GPIO's
+ */
+ clrbits_be32(&im->gpio.gpodr, 0x000000e0);
+ clrbits_be32(&im->gpio.gpdir, 0x00ef0000);
+ setbits_be32(&im->gpio.gpdir, 0x001000e0);
+ setbits_be32(&im->gpio.gpdat, 0x00100000);
+
+ return 0;
+}
+
+phys_size_t initdram(int board_type)
+{
+ return get_ram_size(0, fixed_sdram(NULL, NULL, 0));
+}
+
+int misc_init_r(void)
+{
+ volatile immap_t *im = (immap_t *) CONFIG_SYS_IMMR;
+ u32 val;
+
+ /*
+ * Optimize access to profibus chip (VPC3) on the local bus
+ */
+
+ /*
+ * Select 1:1 for LPC_DIV
+ */
+ val = in_be32(&im->clk.scfr[0]) & ~SCFR1_LPC_DIV_MASK;
+ out_be32(&im->clk.scfr[0], val | (0x1 << SCFR1_LPC_DIV_SHIFT));
+
+ /*
+ * Configure LPC Chips Select Deadcycle Control Register
+ * CS0 - device can drive data 2 clock cycle(s) after CS deassertion
+ * CS1 - device can drive data 1 clock cycle(s) after CS deassertion
+ */
+ clrbits_be32(&im->lpc.cs_dccr, 0x000000ff);
+ setbits_be32(&im->lpc.cs_dccr, (0x00 << 4) | (0x01 << 0));
+
+ /*
+ * Configure LPC Chips Select Holdcycle Control Register
+ * CS0 - data is valid 2 clock cycle(s) after CS deassertion
+ * CS1 - data is valid 1 clock cycle(s) after CS deassertion
+ */
+ clrbits_be32(&im->lpc.cs_hccr, 0x000000ff);
+ setbits_be32(&im->lpc.cs_hccr, (0x00 << 4) | (0x01 << 0));
+
+ return 0;
+}
+
+static iopin_t ioregs_init[] = {
+ /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
+ {
+ offsetof(struct ioctrl512x, io_control_spdif_txclk), 3, 0,
+ IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC1=FEC_COL Sets Next 15 to FEC pads */
+ {
+ offsetof(struct ioctrl512x, io_control_psc0_0), 15, 0,
+ IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC1=SELECT LPC_CS1 */
+ {
+ offsetof(struct ioctrl512x, io_control_lpc_cs1), 1, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC5_2 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc5_2), 1, 0,
+ IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC5_3 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc5_3), 1, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC7_3 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc7_3), 1, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC9_0 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc9_0), 3, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC10_0 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc10_0), 3, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC10_3 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc10_3), 1, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC3=SELECT PSC11_0 */
+ {
+ offsetof(struct ioctrl512x, io_control_psc11_0), 4, 0,
+ IO_PIN_FMUX(3) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ },
+ /* FUNC0=SELECT IRQ0 */
+ {
+ offsetof(struct ioctrl512x, io_control_irq0), 4, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
+ IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
+ }
+};
+
+static iopin_t rev2_silicon_pci_ioregs_init[] = {
+ /* FUNC0=PCI Sets next 54 to PCI pads */
+ {
+ offsetof(struct ioctrl512x, io_control_pci_ad31), 54, 0,
+ IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_DS(0)
+ }
+};
+
+int checkboard(void)
+{
+ volatile immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+ u32 spridr;
+
+ puts("Board: MECP_5123\n");
+
+ /*
+ * Initialize function mux & slew rate IO inter alia on IO
+ * Pins
+ */
+ iopin_initialize(ioregs_init, ARRAY_SIZE(ioregs_init));
+
+ spridr = in_be32(&im->sysconf.spridr);
+ if (SVR_MJREV(spridr) >= 2)
+ iopin_initialize(rev2_silicon_pci_ioregs_init, 1);
+
+ return 0;
+}
+
+#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
+void ft_board_setup(void *blob, bd_t *bd)
+{
+ ft_cpu_setup(blob, bd);
+}
+#endif /* defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) */
Code Review / kvmfornfv.git / blobdiff