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authorWolfgang Denk <wd@denx.de>2011-10-28 00:15:19 +0200
committerWolfgang Denk <wd@denx.de>2011-10-28 00:15:19 +0200
commit87a5d601031652293ec4b729fdb7ee01bbd940a8 (patch)
tree91ede3ee45b228736c1876a700024782d7bc2032 /drivers/misc
parent606a76f8ef479e42ae4d06f8f3ce87e9a1c72acf (diff)
parent37fc0ed268dc5acacd3a83adafa26eb1a84e90af (diff)
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm: ARM: Add Calxeda Highbank platform dkb: make mmc command as default enabled Marvell: dkb: add mmc support ARM: pantheon: add mmc definition davinci: remove config.mk file from the sources ARM:AM33XX: Add support for TI AM335X EVM ARM:AM33XX: Added timer support ARM:AM33XX: Add emif/ddr support ARM:AM33XX: Add clock definitions ARM:AM33XX: Added support for AM33xx omap3/emif4: fix registers definition davinci: remove obsolete macro CONFIG_EMAC_MDIO_PHY_NUM davinci: emac: add support for more than 1 PHYs davinci: emac: add new features to autonegotiate for EMAC da850evm: Move LPSC configuration to board_early_init_f() omap4_panda: Build in cmd_gpio support on panda omap: Don't use gpio_free to change direction to input mmc: omap: Allow OMAP_HSMMC[23]_BASE to be unset OMAP3: overo : Add environment variable optargs to bootargs OMAP3: overo: Move ethernet CS4 configuration to execute based on board id OMAP3: overo : Use ttyO2 instead of ttyS2. da830: add support for NAND boot mode dm36x: revert cache disable patch dm644X: revert cache disable patch devkit8000: Add malloc space omap: spl: fix build break due to changes in FAT OMAP3 SPL: Provide weak omap_rev_string omap: beagle: Use ubifs instead of jffs2 for nand boot omap: overo: Disable pull-ups on camera PCLK, HS and VS signals omap: overo: Configure mux for gpio10 SPL: Add DMA library omap3: Add interface for omap3 DMA omap3: Add DMA register accessors omap3: Add Base register for DMA arm, davinci: add missing LSPC define for MMC/SD1 U-Boot/SPL: omap4: Make ddr pre-calculated timings as default. DaVinci: correct MDSTAT.STATE mask omap4: splitting padconfs into common, 4430 and 4460 omap4: adding revision detection for 4460 ES1.1 omap4: replacing OMAP4_CONTROL with OMAP4430_CONTROL gplug: fixed build error as a result of code cleanup patch kirkwood_spi: add dummy spi_init() gpio: mvmfp: reduce include platform file ARM: orion5x: reduce dependence of including platform file serial: reduce include platform file for marvell chip ARM: kirkwood: reduce dependence of including platform file ARM: armada100: reduce dependence of including platform file ARM: pantheon: reduce dependence of including platform file Armada100: Add env storage support for Marvell gplugD Armada100: Add SPI flash support for Marvell gplugD Armada100: Add SPI support for Marvell gplugD SPI: Add SPI driver support for Marvell Armada100 dreamplug: initial board support. imx: fix coding style misc: pmic: drop old Freescale's pmic driver MX31: mx31pdk: use new pmic driver MX31: mx31ads: use new pmic driver MX31: mx31_litekit: use new pmic driver MX5: mx53evk: use new pmic driver MX5: mx51evk: use new pmic driver MX35: mx35pdk: use new pmic driver misc: pmic: addI2C support to pmic_fsl driver misc: pmic: use I2C_SET_BUS in pmic I2C MX5: efikamx/efikasb: use new pmic driver MX3: qong: use new pmic driver RTC: Switch mc13783 to generic pmic code MX5: vision2: use new pmic driver misc: pmic: Freescale PMIC switches to generic PMIC driver misc:pmic:samsung Enable PMIC driver at GONI target misc:pmic:max8998 MAX8998 support at a new PMIC driver. misc:pmic:core New generic PMIC driver mx31pdk: Remove unneeded config mx31: provide readable WEIM CS accessor MX51: vision2: Set global macros I2C: Add i2c_get/set_speed() to mxc_i2c.c ARM: Update mach-types devkit8000: Add config to enable SPL MMC boot devkit8000: protect board_mmc_init arm, post: add missing post_time_ms for arm cosmetic, post: Codingstyle cleanup arm, logbuffer: make it compileclean tegra2: Enable MMC for Seaboard tegra2: Add more pinmux functions tegra2: Rename PIN_ to PINGRP_ tegra2: Add more clock functions tegra2: Clean up board code a little tegra2: Rename CLOCK_PLL_ID to CLOCK_ID
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/Makefile6
-rw-r--r--drivers/misc/fsl_pmic.c235
-rw-r--r--drivers/misc/pmic_core.c147
-rw-r--r--drivers/misc/pmic_fsl.c66
-rw-r--r--drivers/misc/pmic_i2c.c92
-rw-r--r--drivers/misc/pmic_max8998.c43
-rw-r--r--drivers/misc/pmic_spi.c109
7 files changed, 462 insertions, 236 deletions
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index b152486116..a70970784c 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -28,13 +28,17 @@ LIB := $(obj)libmisc.o
COBJS-$(CONFIG_ALI152X) += ali512x.o
COBJS-$(CONFIG_DS4510) += ds4510.o
COBJS-$(CONFIG_FSL_LAW) += fsl_law.o
-COBJS-$(CONFIG_FSL_PMIC) += fsl_pmic.o
COBJS-$(CONFIG_GPIO_LED) += gpio_led.o
COBJS-$(CONFIG_FSL_MC9SDZ60) += mc9sdz60.o
COBJS-$(CONFIG_NS87308) += ns87308.o
COBJS-$(CONFIG_PDSP188x) += pdsp188x.o
COBJS-$(CONFIG_STATUS_LED) += status_led.o
COBJS-$(CONFIG_TWL4030_LED) += twl4030_led.o
+COBJS-$(CONFIG_PMIC) += pmic_core.o
+COBJS-$(CONFIG_PMIC_FSL) += pmic_fsl.o
+COBJS-$(CONFIG_PMIC_I2C) += pmic_i2c.o
+COBJS-$(CONFIG_PMIC_SPI) += pmic_spi.o
+COBJS-$(CONFIG_PMIC_MAX8998) += pmic_max8998.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
diff --git a/drivers/misc/fsl_pmic.c b/drivers/misc/fsl_pmic.c
deleted file mode 100644
index 23255a59b5..0000000000
--- a/drivers/misc/fsl_pmic.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
- *
- * 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 <config.h>
-#include <common.h>
-#include <asm/errno.h>
-#include <linux/types.h>
-#include <fsl_pmic.h>
-
-static int check_param(u32 reg, u32 write)
-{
- if (reg > 63 || write > 1) {
- printf("<reg num> = %d is invalid. Should be less then 63\n",
- reg);
- return -1;
- }
-
- return 0;
-}
-
-#ifdef CONFIG_FSL_PMIC_I2C
-#include <i2c.h>
-
-u32 pmic_reg(u32 reg, u32 val, u32 write)
-{
- unsigned char buf[4] = { 0 };
- u32 ret_val = 0;
-
- if (check_param(reg, write))
- return -1;
-
- if (write) {
- buf[0] = (val >> 16) & 0xff;
- buf[1] = (val >> 8) & 0xff;
- buf[2] = (val) & 0xff;
- if (i2c_write(CONFIG_SYS_FSL_PMIC_I2C_ADDR, reg, 1, buf, 3))
- return -1;
- } else {
- if (i2c_read(CONFIG_SYS_FSL_PMIC_I2C_ADDR, reg, 1, buf, 3))
- return -1;
- ret_val = buf[0] << 16 | buf[1] << 8 | buf[2];
- }
-
- return ret_val;
-}
-#else /* SPI interface */
-#include <spi.h>
-static struct spi_slave *slave;
-
-struct spi_slave *pmic_spi_probe(void)
-{
- return spi_setup_slave(CONFIG_FSL_PMIC_BUS,
- CONFIG_FSL_PMIC_CS,
- CONFIG_FSL_PMIC_CLK,
- CONFIG_FSL_PMIC_MODE);
-}
-
-void pmic_spi_free(struct spi_slave *slave)
-{
- if (slave)
- spi_free_slave(slave);
-}
-
-u32 pmic_reg(u32 reg, u32 val, u32 write)
-{
- u32 pmic_tx, pmic_rx;
- u32 tmp;
-
- if (!slave) {
- slave = pmic_spi_probe();
-
- if (!slave)
- return -1;
- }
-
- if (check_param(reg, write))
- return -1;
-
- if (spi_claim_bus(slave))
- return -1;
-
- pmic_tx = (write << 31) | (reg << 25) | (val & 0x00FFFFFF);
-
- tmp = cpu_to_be32(pmic_tx);
-
- if (spi_xfer(slave, 4 << 3, &tmp, &pmic_rx,
- SPI_XFER_BEGIN | SPI_XFER_END)) {
- spi_release_bus(slave);
- return -1;
- }
-
- if (write) {
- pmic_tx &= ~(1 << 31);
- tmp = cpu_to_be32(pmic_tx);
- if (spi_xfer(slave, 4 << 3, &tmp, &pmic_rx,
- SPI_XFER_BEGIN | SPI_XFER_END)) {
- spi_release_bus(slave);
- return -1;
- }
- }
-
- spi_release_bus(slave);
- return cpu_to_be32(pmic_rx);
-}
-#endif
-
-void pmic_reg_write(u32 reg, u32 value)
-{
- pmic_reg(reg, value, 1);
-}
-
-u32 pmic_reg_read(u32 reg)
-{
- return pmic_reg(reg, 0, 0);
-}
-
-void pmic_show_pmic_info(void)
-{
- u32 rev_id;
-
- rev_id = pmic_reg_read(REG_IDENTIFICATION);
- printf("PMIC ID: 0x%08x [Rev: ", rev_id);
- switch (rev_id & 0x1F) {
- case 0x1:
- puts("1.0");
- break;
- case 0x9:
- puts("1.1");
- break;
- case 0xA:
- puts("1.2");
- break;
- case 0x10:
- puts("2.0");
- break;
- case 0x11:
- puts("2.1");
- break;
- case 0x18:
- puts("3.0");
- break;
- case 0x19:
- puts("3.1");
- break;
- case 0x1A:
- puts("3.2");
- break;
- case 0x2:
- puts("3.2A");
- break;
- case 0x1B:
- puts("3.3");
- break;
- case 0x1D:
- puts("3.5");
- break;
- default:
- puts("unknown");
- break;
- }
- puts("]\n");
-}
-
-static void pmic_dump(int numregs)
-{
- u32 val;
- int i;
-
- pmic_show_pmic_info();
- for (i = 0; i < numregs; i++) {
- val = pmic_reg_read(i);
- if (!(i % 8))
- printf ("\n0x%02x: ", i);
- printf("%08x ", val);
- }
- puts("\n");
-}
-
-int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
-{
- char *cmd;
- int nregs;
- u32 val;
-
- /* at least two arguments please */
- if (argc < 2)
- return cmd_usage(cmdtp);
-
- cmd = argv[1];
- if (strcmp(cmd, "dump") == 0) {
- if (argc < 3)
- return cmd_usage(cmdtp);
-
- nregs = simple_strtoul(argv[2], NULL, 16);
- pmic_dump(nregs);
- return 0;
- }
- if (strcmp(cmd, "write") == 0) {
- if (argc < 4)
- return cmd_usage(cmdtp);
-
- nregs = simple_strtoul(argv[2], NULL, 16);
- val = simple_strtoul(argv[3], NULL, 16);
- pmic_reg_write(nregs, val);
- return 0;
- }
- /* No subcommand found */
- return 1;
-}
-
-U_BOOT_CMD(
- pmic, CONFIG_SYS_MAXARGS, 1, do_pmic,
- "Freescale PMIC (Atlas)",
- "dump [numregs] - dump registers\n"
- "pmic write <reg> <value> - write register"
-);
diff --git a/drivers/misc/pmic_core.c b/drivers/misc/pmic_core.c
new file mode 100644
index 0000000000..5d62a56d34
--- /dev/null
+++ b/drivers/misc/pmic_core.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * (C) Copyright 2010
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de
+ *
+ * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * 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 <linux/types.h>
+#include <pmic.h>
+
+static struct pmic pmic;
+
+int check_reg(u32 reg)
+{
+ if (reg >= pmic.number_of_regs) {
+ printf("<reg num> = %d is invalid. Should be less than %d\n",
+ reg, pmic.number_of_regs);
+ return -1;
+ }
+ return 0;
+}
+
+int pmic_set_output(struct pmic *p, u32 reg, int out, int on)
+{
+ u32 val;
+
+ if (pmic_reg_read(p, reg, &val))
+ return -1;
+
+ if (on)
+ val |= out;
+ else
+ val &= ~out;
+
+ if (pmic_reg_write(p, reg, val))
+ return -1;
+
+ return 0;
+}
+
+static void pmic_show_info(struct pmic *p)
+{
+ printf("PMIC: %s\n", p->name);
+}
+
+static void pmic_dump(struct pmic *p)
+{
+ int i, ret;
+ u32 val;
+
+ pmic_show_info(p);
+ for (i = 0; i < p->number_of_regs; i++) {
+ ret = pmic_reg_read(p, i, &val);
+ if (ret)
+ puts("PMIC: Registers dump failed\n");
+
+ if (!(i % 8))
+ printf("\n0x%02x: ", i);
+
+ printf("%08x ", val);
+ }
+ puts("\n");
+}
+
+struct pmic *get_pmic(void)
+{
+ return &pmic;
+}
+
+int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ u32 ret, reg, val;
+ char *cmd;
+
+ struct pmic *p = &pmic;
+
+ /* at least two arguments please */
+ if (argc < 2)
+ return cmd_usage(cmdtp);
+
+ cmd = argv[1];
+ if (strcmp(cmd, "dump") == 0) {
+ pmic_dump(p);
+ return 0;
+ }
+
+ if (strcmp(cmd, "read") == 0) {
+ if (argc < 3)
+ return cmd_usage(cmdtp);
+
+ reg = simple_strtoul(argv[2], NULL, 16);
+
+ ret = pmic_reg_read(p, reg, &val);
+
+ if (ret)
+ puts("PMIC: Register read failed\n");
+
+ printf("\n0x%02x: 0x%08x\n", reg, val);
+
+ return 0;
+ }
+
+ if (strcmp(cmd, "write") == 0) {
+ if (argc < 4)
+ return cmd_usage(cmdtp);
+
+ reg = simple_strtoul(argv[2], NULL, 16);
+ val = simple_strtoul(argv[3], NULL, 16);
+
+ pmic_reg_write(p, reg, val);
+
+ return 0;
+ }
+
+ /* No subcommand found */
+ return 1;
+}
+
+U_BOOT_CMD(
+ pmic, CONFIG_SYS_MAXARGS, 1, do_pmic,
+ "PMIC",
+ "dump - dump PMIC registers\n"
+ "pmic read <reg> - read register\n"
+ "pmic write <reg> <value> - write register"
+);
diff --git a/drivers/misc/pmic_fsl.c b/drivers/misc/pmic_fsl.c
new file mode 100644
index 0000000000..b6e809a188
--- /dev/null
+++ b/drivers/misc/pmic_fsl.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * 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 <spi.h>
+#include <pmic.h>
+#include <fsl_pmic.h>
+
+#if defined(CONFIG_PMIC_SPI)
+static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write)
+{
+ if ((val == NULL) && (write))
+ return *val & ~(1 << 31);
+ else
+ return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF);
+}
+#endif
+
+int pmic_init(void)
+{
+ struct pmic *p = get_pmic();
+ static const char name[] = "FSL_PMIC";
+
+ p->name = name;
+ p->number_of_regs = PMIC_NUM_OF_REGS;
+
+#if defined(CONFIG_PMIC_SPI)
+ p->interface = PMIC_SPI;
+ p->bus = CONFIG_FSL_PMIC_BUS;
+ p->hw.spi.cs = CONFIG_FSL_PMIC_CS;
+ p->hw.spi.clk = CONFIG_FSL_PMIC_CLK;
+ p->hw.spi.mode = CONFIG_FSL_PMIC_MODE;
+ p->hw.spi.bitlen = CONFIG_FSL_PMIC_BITLEN;
+ p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END;
+ p->hw.spi.prepare_tx = pmic_spi_prepare_tx;
+#elif defined(CONFIG_PMIC_I2C)
+ p->interface = PMIC_I2C;
+ p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR;
+ p->hw.i2c.tx_num = 3;
+ p->bus = I2C_PMIC;
+#else
+#error "You must select CONFIG_PMIC_SPI or CONFIG_PMIC_I2C"
+#endif
+
+ return 0;
+}
diff --git a/drivers/misc/pmic_i2c.c b/drivers/misc/pmic_i2c.c
new file mode 100644
index 0000000000..ad55d6447e
--- /dev/null
+++ b/drivers/misc/pmic_i2c.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * (C) Copyright 2010
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de
+ *
+ * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * 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 <linux/types.h>
+#include <pmic.h>
+#include <i2c.h>
+
+int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
+{
+ unsigned char buf[4] = { 0 };
+
+ if (check_reg(reg))
+ return -1;
+
+ switch (pmic_i2c_tx_num) {
+ case 3:
+ buf[0] = (val >> 16) & 0xff;
+ buf[1] = (val >> 8) & 0xff;
+ buf[2] = val & 0xff;
+ break;
+ case 1:
+ buf[0] = val & 0xff;
+ break;
+ }
+
+ if (i2c_write(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num))
+ return -1;
+
+ return 0;
+}
+
+int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
+{
+ unsigned char buf[4] = { 0 };
+ u32 ret_val = 0;
+
+ if (check_reg(reg))
+ return -1;
+
+ if (i2c_read(pmic_i2c_addr, reg, 1, buf, pmic_i2c_tx_num))
+ return -1;
+
+ switch (pmic_i2c_tx_num) {
+ case 3:
+ ret_val = buf[0] << 16 | buf[1] << 8 | buf[2];
+ break;
+ case 1:
+ ret_val = buf[0];
+ break;
+ }
+ memcpy(val, &ret_val, sizeof(ret_val));
+
+ return 0;
+}
+
+int pmic_probe(struct pmic *p)
+{
+ I2C_SET_BUS(p->bus);
+ debug("PMIC:%s probed!\n", p->name);
+ if (i2c_probe(pmic_i2c_addr)) {
+ printf("Can't find PMIC:%s\n", p->name);
+ return -1;
+ }
+
+ return 0;
+}
diff --git a/drivers/misc/pmic_max8998.c b/drivers/misc/pmic_max8998.c
new file mode 100644
index 0000000000..cc69fd7080
--- /dev/null
+++ b/drivers/misc/pmic_max8998.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * 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 <pmic.h>
+#include <max8998_pmic.h>
+
+int pmic_init(void)
+{
+ struct pmic *p = get_pmic();
+ static const char name[] = "MAX8998_PMIC";
+
+ puts("Board PMIC init\n");
+
+ p->name = name;
+ p->interface = PMIC_I2C;
+ p->number_of_regs = PMIC_NUM_OF_REGS;
+ p->hw.i2c.addr = MAX8998_I2C_ADDR;
+ p->hw.i2c.tx_num = 1;
+ p->bus = I2C_PMIC;
+
+ return 0;
+}
diff --git a/drivers/misc/pmic_spi.c b/drivers/misc/pmic_spi.c
new file mode 100644
index 0000000000..ff35377afc
--- /dev/null
+++ b/drivers/misc/pmic_spi.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics
+ * Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * (C) Copyright 2010
+ * Stefano Babic, DENX Software Engineering, sbabic@denx.de
+ *
+ * (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
+ *
+ * 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 <linux/types.h>
+#include <pmic.h>
+#include <spi.h>
+
+static struct spi_slave *slave;
+
+void pmic_spi_free(struct spi_slave *slave)
+{
+ if (slave)
+ spi_free_slave(slave);
+}
+
+struct spi_slave *pmic_spi_probe(struct pmic *p)
+{
+ return spi_setup_slave(p->bus,
+ p->hw.spi.cs,
+ p->hw.spi.clk,
+ p->hw.spi.mode);
+}
+
+static u32 pmic_reg(struct pmic *p, u32 reg, u32 *val, u32 write)
+{
+ u32 pmic_tx, pmic_rx;
+ u32 tmp;
+
+ if (!slave) {
+ slave = pmic_spi_probe(p);
+
+ if (!slave)
+ return -1;
+ }
+
+ if (check_reg(reg))
+ return -1;
+
+ if (spi_claim_bus(slave))
+ return -1;
+
+ pmic_tx = p->hw.spi.prepare_tx(reg, val, write);
+
+ tmp = cpu_to_be32(pmic_tx);
+
+ if (spi_xfer(slave, pmic_spi_bitlen, &tmp, &pmic_rx,
+ pmic_spi_flags)) {
+ spi_release_bus(slave);
+ return -1;
+ }
+
+ if (write) {
+ pmic_tx = p->hw.spi.prepare_tx(0, NULL, write);
+ pmic_tx &= ~(1 << 31);
+ tmp = cpu_to_be32(pmic_tx);
+ if (spi_xfer(slave, pmic_spi_bitlen, &tmp, &pmic_rx,
+ pmic_spi_flags)) {
+ spi_release_bus(slave);
+ return -1;
+ }
+ }
+
+ spi_release_bus(slave);
+ *val = cpu_to_be32(pmic_rx);
+
+ return 0;
+}
+
+int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
+{
+ if (pmic_reg(p, reg, &val, 1))
+ return -1;
+
+ return 0;
+}
+
+int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
+{
+ if (pmic_reg(p, reg, val, 0))
+ return -1;
+
+ return 0;
+}