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-rw-r--r--drivers/gpio/Makefile47
-rw-r--r--drivers/gpio/pca953x.c227
-rw-r--r--drivers/mtd/nand/fsl_elbc_nand.c6
-rw-r--r--drivers/mtd/nand/nand_base.c2
-rw-r--r--drivers/pci/fsl_pci_init.c29
-rw-r--r--drivers/serial/serial_sh.c81
6 files changed, 349 insertions, 43 deletions
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
new file mode 100644
index 0000000000..dd618ed71c
--- /dev/null
+++ b/drivers/gpio/Makefile
@@ -0,0 +1,47 @@
+#
+# Copyright 2000-2008
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB := $(obj)libgpio.a
+
+COBJS-$(CONFIG_PCA953X) += pca953x.o
+
+COBJS := $(COBJS-y)
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+all: $(LIB)
+
+$(LIB): $(obj).depend $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+########################################################################
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
new file mode 100644
index 0000000000..390d99ad3d
--- /dev/null
+++ b/drivers/gpio/pca953x.c
@@ -0,0 +1,227 @@
+/*
+ * Copyright 2008 Extreme Engineering Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * Version 2 as published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+/*
+ * Driver for NXP's 4 and 8 bit I2C gpio expanders (eg pca9537, pca9557, etc)
+ * TODO: support additional devices with more than 8-bits GPIO
+ */
+
+#include <common.h>
+#include <i2c.h>
+#include <pca953x.h>
+
+/* Default to an address that hopefully won't corrupt other i2c devices */
+#ifndef CONFIG_SYS_I2C_PCA953X_ADDR
+#define CONFIG_SYS_I2C_PCA953X_ADDR (~0)
+#endif
+
+enum {
+ PCA953X_CMD_INFO,
+ PCA953X_CMD_DEVICE,
+ PCA953X_CMD_OUTPUT,
+ PCA953X_CMD_INPUT,
+ PCA953X_CMD_INVERT,
+};
+
+/*
+ * Modify masked bits in register
+ */
+static int pca953x_reg_write(uint8_t chip, uint addr, uint mask, uint data)
+{
+ uint8_t val;
+
+ if (i2c_read(chip, addr, 1, &val, 1))
+ return -1;
+
+ val &= ~mask;
+ val |= data;
+
+ return i2c_write(chip, addr, 1, &val, 1);
+}
+
+/*
+ * Set output value of IO pins in 'mask' to corresponding value in 'data'
+ * 0 = low, 1 = high
+ */
+int pca953x_set_val(uint8_t chip, uint mask, uint data)
+{
+ return pca953x_reg_write(chip, PCA953X_OUT, mask, data);
+}
+
+/*
+ * Set read polarity of IO pins in 'mask' to corresponding value in 'data'
+ * 0 = read pin value, 1 = read inverted pin value
+ */
+int pca953x_set_pol(uint8_t chip, uint mask, uint data)
+{
+ return pca953x_reg_write(chip, PCA953X_POL, mask, data);
+}
+
+/*
+ * Set direction of IO pins in 'mask' to corresponding value in 'data'
+ * 0 = output, 1 = input
+ */
+int pca953x_set_dir(uint8_t chip, uint mask, uint data)
+{
+ return pca953x_reg_write(chip, PCA953X_CONF, mask, data);
+}
+
+/*
+ * Read current logic level of all IO pins
+ */
+int pca953x_get_val(uint8_t chip)
+{
+ uint8_t val;
+
+ if (i2c_read(chip, 0, 1, &val, 1))
+ return -1;
+
+ return (int)val;
+}
+
+#ifdef CONFIG_CMD_PCA953X
+#ifdef CONFIG_CMD_PCA953X_INFO
+/*
+ * Display pca953x information
+ */
+static int pca953x_info(uint8_t chip)
+{
+ int i;
+ uint8_t data;
+
+ printf("pca953x@ 0x%x:\n\n", chip);
+ printf("gpio pins: 76543210\n");
+ printf("-------------------\n");
+
+ if (i2c_read(chip, PCA953X_CONF, 1, &data, 1))
+ return -1;
+ printf("conf: ");
+ for (i = 7; i >= 0; i--)
+ printf("%c", data & (1 << i) ? 'i' : 'o');
+ printf("\n");
+
+ if (i2c_read(chip, PCA953X_POL, 1, &data, 1))
+ return -1;
+ printf("invert: ");
+ for (i = 7; i >= 0; i--)
+ printf("%c", data & (1 << i) ? '1' : '0');
+ printf("\n");
+
+ if (i2c_read(chip, PCA953X_IN, 1, &data, 1))
+ return -1;
+ printf("input: ");
+ for (i = 7; i >= 0; i--)
+ printf("%c", data & (1 << i) ? '1' : '0');
+ printf("\n");
+
+ if (i2c_read(chip, PCA953X_OUT, 1, &data, 1))
+ return -1;
+ printf("output: ");
+ for (i = 7; i >= 0; i--)
+ printf("%c", data & (1 << i) ? '1' : '0');
+ printf("\n");
+
+ return 0;
+}
+#endif /* CONFIG_CMD_PCA953X_INFO */
+
+cmd_tbl_t cmd_pca953x[] = {
+ U_BOOT_CMD_MKENT(device, 3, 0, (void *)PCA953X_CMD_DEVICE, "", ""),
+ U_BOOT_CMD_MKENT(output, 4, 0, (void *)PCA953X_CMD_OUTPUT, "", ""),
+ U_BOOT_CMD_MKENT(input, 3, 0, (void *)PCA953X_CMD_INPUT, "", ""),
+ U_BOOT_CMD_MKENT(invert, 4, 0, (void *)PCA953X_CMD_INVERT, "", ""),
+#ifdef CONFIG_CMD_PCA953X_INFO
+ U_BOOT_CMD_MKENT(info, 2, 0, (void *)PCA953X_CMD_INFO, "", ""),
+#endif
+};
+
+int do_pca953x(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ static uint8_t chip = CONFIG_SYS_I2C_PCA953X_ADDR;
+ int val;
+ ulong ul_arg2 = 0;
+ ulong ul_arg3 = 0;
+ cmd_tbl_t *c;
+
+ c = find_cmd_tbl(argv[1], cmd_pca953x, ARRAY_SIZE(cmd_pca953x));
+
+ /* All commands but "device" require 'maxargs' arguments */
+ if (!c || !((argc == (c->maxargs)) ||
+ (((int)c->cmd == PCA953X_CMD_DEVICE) &&
+ (argc == (c->maxargs - 1))))) {
+ printf("Usage:\n%s\n", cmdtp->usage);
+ return 1;
+ }
+
+ /* arg2 used as chip number or pin number */
+ if (argc > 2)
+ ul_arg2 = simple_strtoul(argv[2], NULL, 16);
+
+ /* arg3 used as pin or invert value */
+ if (argc > 3)
+ ul_arg3 = simple_strtoul(argv[3], NULL, 16) & 0x1;
+
+ switch ((int)c->cmd) {
+#ifdef CONFIG_CMD_PCA953X_INFO
+ case PCA953X_CMD_INFO:
+ return pca953x_info(chip);
+#endif
+ case PCA953X_CMD_DEVICE:
+ if (argc == 3)
+ chip = (uint8_t)ul_arg2;
+ printf("Current device address: 0x%x\n", chip);
+ return 0;
+ case PCA953X_CMD_INPUT:
+ pca953x_set_dir(chip, (1 << ul_arg2),
+ PCA953X_DIR_IN << ul_arg2);
+ val = (pca953x_get_val(chip) & (1 << ul_arg2)) != 0;
+
+ printf("chip 0x%02x, pin 0x%lx = %d\n", chip, ul_arg2, val);
+ return val;
+ case PCA953X_CMD_OUTPUT:
+ pca953x_set_dir(chip, (1 << ul_arg2),
+ (PCA953X_DIR_OUT << ul_arg2));
+ return pca953x_set_val(chip, (1 << ul_arg2),
+ (ul_arg3 << ul_arg2));
+ case PCA953X_CMD_INVERT:
+ return pca953x_set_pol(chip, (1 << ul_arg2),
+ (ul_arg3 << ul_arg2));
+ default:
+ /* We should never get here */
+ return 1;
+ }
+}
+
+U_BOOT_CMD(
+ pca953x, 5, 1, do_pca953x,
+ "pca953x - pca953x gpio access\n",
+ "device [dev]\n"
+ " - show or set current device address\n"
+#ifdef CONFIG_CMD_PCA953X_INFO
+ "pca953x info\n"
+ " - display info for current chip\n"
+#endif
+ "pca953x output pin 0|1\n"
+ " - set pin as output and drive low or high\n"
+ "pca953x invert pin 0|1\n"
+ " - disable/enable polarity inversion for reads\n"
+ "pca953x intput pin\n"
+ " - set pin as input and read value\n"
+);
+
+#endif /* CONFIG_CMD_PCA953X */
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 367c7d7fcd..3f318e02e2 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -718,7 +718,7 @@ static void fsl_elbc_ctrl_init(void)
int board_nand_init(struct nand_chip *nand)
{
struct fsl_elbc_mtd *priv;
- uint32_t br, or;
+ uint32_t br = 0, or = 0;
if (!elbc_ctrl) {
fsl_elbc_ctrl_init();
@@ -737,11 +737,13 @@ int board_nand_init(struct nand_chip *nand)
* if we could pass more than one datum to the NAND driver...
*/
for (priv->bank = 0; priv->bank < MAX_BANKS; priv->bank++) {
+ phys_addr_t base_addr = virt_to_phys(nand->IO_ADDR_R);
+
br = in_be32(&elbc_ctrl->regs->bank[priv->bank].br);
or = in_be32(&elbc_ctrl->regs->bank[priv->bank].or);
if ((br & BR_V) && (br & BR_MSEL) == BR_MS_FCM &&
- (br & or & BR_BA) == (phys_addr_t)nand->IO_ADDR_R)
+ (br & or & BR_BA) == BR_PHYS_ADDR(base_addr))
break;
}
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ba05b762ed..94a65d4e72 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -460,8 +460,8 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip,
struct nand_chip *chip = mtd->priv;
if (!(chip->options & NAND_BBT_SCANNED)) {
- chip->scan_bbt(mtd);
chip->options |= NAND_BBT_SCANNED;
+ chip->scan_bbt(mtd);
}
if (!chip->bbt)
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index 1db42fd8d3..db68f26009 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -37,6 +37,11 @@ DECLARE_GLOBAL_DATA_PTR;
#include <pci.h>
#include <asm/immap_fsl_pci.h>
+/* Freescale-specific PCI config registers */
+#define FSL_PCI_PBFR 0x44
+#define FSL_PCIE_CAP_ID 0x4c
+#define FSL_PCIE_CFG_RDY 0x4b0
+
void pciauto_prescan_setup_bridge(struct pci_controller *hose,
pci_dev_t dev, int sub_bus);
void pciauto_postscan_setup_bridge(struct pci_controller *hose,
@@ -306,6 +311,30 @@ void fsl_pci_init(struct pci_controller *hose)
}
}
+/* Enable inbound PCI config cycles for agent/endpoint interface */
+void fsl_pci_config_unlock(struct pci_controller *hose)
+{
+ pci_dev_t dev = PCI_BDF(hose->first_busno,0,0);
+ u8 agent;
+ u8 pcie_cap;
+ u16 pbfr;
+
+ pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &agent);
+ if (!agent)
+ return;
+
+ pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap);
+ if (pcie_cap != 0x0) {
+ /* PCIe - set CFG_READY bit of Configuration Ready Register */
+ pci_hose_write_config_byte(hose, dev, FSL_PCIE_CFG_RDY, 0x1);
+ } else {
+ /* PCI - clear ACL bit of PBFR */
+ pci_hose_read_config_word(hose, dev, FSL_PCI_PBFR, &pbfr);
+ pbfr &= ~0x20;
+ pci_hose_write_config_word(hose, dev, FSL_PCI_PBFR, pbfr);
+ }
+}
+
#ifdef CONFIG_OF_BOARD_SETUP
#include <libfdt.h>
#include <fdt_support.h>
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index 1d76a194a5..bfdb2ce77a 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -18,6 +18,7 @@
*/
#include <common.h>
+#include <asm/io.h>
#include <asm/processor.h>
#if defined(CONFIG_CONS_SCIF0)
@@ -49,7 +50,7 @@
# define SCFRDR (vu_char *)(SCIF_BASE + 0x24)
#else
# define SCFTDR (vu_char *)(SCIF_BASE + 0xC)
-# define SCFSR (vu_short *)(SCIF_BASE + 0x10)
+# define SCFSR (vu_short *)(SCIF_BASE + 0x10)
# define SCFRDR (vu_char *)(SCIF_BASE + 0x14)
#endif
@@ -64,7 +65,7 @@
#elif defined(CONFIG_CPU_SH7763)
# if defined(CONFIG_CONS_SCIF2)
# define SCSPTR (vu_short *)(SCIF_BASE + 0x20)
-# define SCLSR (vu_short *)(SCIF_BASE + 0x24)
+# define SCLSR (vu_short *)(SCIF_BASE + 0x24)
# define LSR_ORER 1
# define FIFOLEVEL_MASK 0x1F
# else
@@ -90,7 +91,7 @@
defined(CONFIG_CPU_SH7722) || \
defined(CONFIG_CPU_SH7203)
# define SCSPTR (vu_short *)(SCIF_BASE + 0x20)
-# define SCLSR (vu_short *)(SCIF_BASE + 0x24)
+# define SCLSR (vu_short *)(SCIF_BASE + 0x24)
# define LSR_ORER 1
# define FIFOLEVEL_MASK 0x1F
#elif defined(CONFIG_CPU_SH7720)
@@ -106,42 +107,43 @@
/* SCBRR register value setting */
#if defined(CONFIG_CPU_SH7720)
-# define SCBRR_VALUE(bps, clk) (((clk*2)+16*bps)/(32*bps)-1)
+# define SCBRR_VALUE(bps, clk) (((clk * 2) + 16 * bps) / (32 * bps) - 1)
#elif defined(CONFIG_CPU_SH7723) && defined(CONFIG_SCIF_A)
/* SH7723 SCIFA use bus clock. So clock *2 */
-# define SCBRR_VALUE(bps, clk) (((clk*2*2)+16*bps)/(32*bps)-1)
+# define SCBRR_VALUE(bps, clk) (((clk * 2 * 2) + 16 * bps) / (32 * bps) - 1)
#else /* Generic SuperH */
-# define SCBRR_VALUE(bps, clk) ((clk+16*bps)/(32*bps)-1)
+# define SCBRR_VALUE(bps, clk) ((clk + 16 * bps) / (32 * bps) - 1)
#endif
-#define SCR_RE (1 << 4)
-#define SCR_TE (1 << 5)
+#define SCR_RE (1 << 4)
+#define SCR_TE (1 << 5)
#define FCR_RFRST (1 << 1) /* RFCL */
#define FCR_TFRST (1 << 2) /* TFCL */
-#define FSR_DR (1 << 0)
-#define FSR_RDF (1 << 1)
-#define FSR_FER (1 << 3)
-#define FSR_BRK (1 << 4)
-#define FSR_FER (1 << 3)
-#define FSR_TEND (1 << 6)
-#define FSR_ER (1 << 7)
+#define FSR_DR (1 << 0)
+#define FSR_RDF (1 << 1)
+#define FSR_FER (1 << 3)
+#define FSR_BRK (1 << 4)
+#define FSR_FER (1 << 3)
+#define FSR_TEND (1 << 6)
+#define FSR_ER (1 << 7)
/*----------------------------------------------------------------------*/
void serial_setbrg(void)
{
DECLARE_GLOBAL_DATA_PTR;
- *SCBRR = SCBRR_VALUE(gd->baudrate, CONFIG_SYS_CLK_FREQ);
+
+ writeb(SCBRR_VALUE(gd->baudrate, CONFIG_SYS_CLK_FREQ), SCBRR);
}
int serial_init(void)
{
- *SCSCR = (SCR_RE | SCR_TE);
- *SCSMR = 0;
- *SCSMR = 0;
- *SCFCR = (FCR_RFRST | FCR_TFRST);
- *SCFCR;
- *SCFCR = 0;
+ writew((SCR_RE | SCR_TE), SCSCR);
+ writew(0, SCSMR);
+ writew(0, SCSMR);
+ writew((FCR_RFRST | FCR_TFRST), SCFCR);
+ readw(SCFCR);
+ writew(0, SCFCR);
serial_setbrg();
return 0;
@@ -150,9 +152,9 @@ int serial_init(void)
static int serial_rx_fifo_level(void)
{
#if defined(SCRFDR)
- return (*SCRFDR >> 0) & FIFOLEVEL_MASK;
+ return (readw(SCRFDR) >> 0) & FIFOLEVEL_MASK;
#else
- return (*SCFDR >> 0) & FIFOLEVEL_MASK;
+ return (readw(SCFDR) >> 0) & FIFOLEVEL_MASK;
#endif
}
@@ -161,15 +163,15 @@ void serial_raw_putc(const char c)
unsigned int fsr_bits_to_clear;
while (1) {
- if (*SCFSR & FSR_TEND) { /* Tx fifo is empty */
+ if (readw(SCFSR) & FSR_TEND) { /* Tx fifo is empty */
fsr_bits_to_clear = FSR_TEND;
break;
}
}
- *SCFTDR = c;
+ writeb(c, SCFTDR);
if (fsr_bits_to_clear != 0)
- *SCFSR &= ~fsr_bits_to_clear;
+ writew(readw(SCFSR) & ~fsr_bits_to_clear, SCFSR);
}
void serial_putc(const char c)
@@ -191,26 +193,25 @@ int serial_tstc(void)
return serial_rx_fifo_level() ? 1 : 0;
}
-#define FSR_ERR_CLEAR 0x0063
-#define RDRF_CLEAR 0x00fc
+#define FSR_ERR_CLEAR 0x0063
+#define RDRF_CLEAR 0x00fc
void handle_error(void)
{
-
- (void)*SCFSR;
- *SCFSR = FSR_ERR_CLEAR;
- (void)*SCLSR;
- *SCLSR = 0x00;
+ readw(SCFSR);
+ writew(FSR_ERR_CLEAR, SCFSR);
+ readw(SCLSR);
+ writew(0x00, SCLSR);
}
int serial_getc_check(void)
{
unsigned short status;
- status = *SCFSR;
+ status = readw(SCFSR);
if (status & (FSR_FER | FSR_ER | FSR_BRK))
handle_error();
- if (*SCLSR & LSR_ORER)
+ if (readw(SCLSR) & LSR_ORER)
handle_error();
return status & (FSR_DR | FSR_RDF);
}
@@ -223,15 +224,15 @@ int serial_getc(void)
while (!serial_getc_check())
;
- ch = *SCFRDR;
- status = *SCFSR;
+ ch = readb(SCFRDR);
+ status = readw(SCFSR);
- *SCFSR = RDRF_CLEAR;
+ writew(RDRF_CLEAR, SCFSR);
if (status & (FSR_FER | FSR_FER | FSR_ER | FSR_BRK))
handle_error();
- if (*SCLSR & LSR_ORER)
+ if (readw(SCLSR) & LSR_ORER)
handle_error();
return ch;