diff options
Diffstat (limited to 'arch_msm7k/shared.c')
| -rw-r--r-- | arch_msm7k/shared.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/arch_msm7k/shared.c b/arch_msm7k/shared.c new file mode 100644 index 0000000..0ae8cd4 --- /dev/null +++ b/arch_msm7k/shared.c @@ -0,0 +1,197 @@ +/* + * Copyright (c) 2008, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <boot/boot.h> +#include <msm7k/shared.h> + +static void get_version(char *s, unsigned id) +{ + unsigned *ver = (unsigned*) MSM7K_VERSION; + unsigned n = ver[id]; + + snprintf(s, 32, "%d.%d", n >> 16, n & 0xffff); +} + +void get_version_modem(char *s) +{ + get_version(s, VERSION_MODEM); +} + +void get_version_modem_sbl(char *s) +{ + get_version(s, VERSION_MODEM_SBL); +} + +#define MSM_CSR_BASE 0xC0100000 + +#define MSM_A2M_INT(n) (MSM_CSR_BASE + 0x400 + (n) * 4) + +static inline void notify_other_proc_comm(void) +{ + writel(1, MSM_A2M_INT(6)); +} + +#define APP_COMMAND (MSM7K_SHARED_PHYS + 0x00) +#define APP_STATUS (MSM7K_SHARED_PHYS + 0x04) +#define APP_DATA1 (MSM7K_SHARED_PHYS + 0x08) +#define APP_DATA2 (MSM7K_SHARED_PHYS + 0x0C) + +#define MDM_COMMAND (MSM7K_SHARED_PHYS + 0x10) +#define MDM_STATUS (MSM7K_SHARED_PHYS + 0x14) +#define MDM_DATA1 (MSM7K_SHARED_PHYS + 0x18) +#define MDM_DATA2 (MSM7K_SHARED_PHYS + 0x1C) + + +enum +{ + PCOM_CMD_IDLE = 0x0, + PCOM_CMD_DONE, + PCOM_RESET_APPS, + PCOM_RESET_CHIP, + PCOM_CONFIG_NAND_MPU, + PCOM_CONFIG_USB_CLKS, + PCOM_GET_POWER_ON_STATUS, + PCOM_GET_WAKE_UP_STATUS, + PCOM_GET_BATT_LEVEL, + PCOM_CHG_IS_CHARGING, + PCOM_POWER_DOWN, + PCOM_USB_PIN_CONFIG, + PCOM_USB_PIN_SEL, + PCOM_SET_RTC_ALARM, + PCOM_NV_READ, + PCOM_NV_WRITE, + PCOM_GET_UUID_HIGH, + PCOM_GET_UUID_LOW, + PCOM_GET_HW_ENTROPY, + PCOM_RPC_GPIO_TLMM_CONFIG_REMOTE, + PCOM_CLKCTL_RPC_ENABLE, + PCOM_CLKCTL_RPC_DISABLE, + PCOM_CLKCTL_RPC_RESET, + PCOM_CLKCTL_RPC_SET_FLAGS, + PCOM_CLKCTL_RPC_SET_RATE, + PCOM_CLKCTL_RPC_MIN_RATE, + PCOM_CLKCTL_RPC_MAX_RATE, + PCOM_CLKCTL_RPC_RATE, + PCOM_CLKCTL_RPC_PLL_REQUEST, + PCOM_CLKCTL_RPC_ENABLED, + PCOM_VREG_SWITCH, + PCOM_VREG_SET_LEVEL, + PCOM_GPIO_TLMM_CONFIG_GROUP, + PCOM_GPIO_TLMM_UNCONFIG_GROUP, + PCOM_NV_READ_HIGH_BITS, + PCOM_NV_WRITE_HIGH_BITS, + PCOM_NUM_CMDS, +}; + +enum +{ + PCOM_INVALID_STATUS = 0x0, + PCOM_READY, + PCOM_CMD_RUNNING, + PCOM_CMD_SUCCESS, + PCOM_CMD_FAIL, +}; + +int msm_proc_comm(unsigned cmd, unsigned *data1, unsigned *data2) +{ + int ret = -1; + + while (readl(MDM_STATUS) != PCOM_READY) { + /* XXX check for A9 reset */ + } + + writel(cmd, APP_COMMAND); + if (data1) + writel(*data1, APP_DATA1); + if (data2) + writel(*data2, APP_DATA2); + + notify_other_proc_comm(); + while (readl(APP_COMMAND) != PCOM_CMD_DONE) { + /* XXX check for A9 reset */ + } + + if (readl(APP_STATUS) != PCOM_CMD_FAIL) { + if (data1) + *data1 = readl(APP_DATA1); + if (data2) + *data2 = readl(APP_DATA2); + ret = 0; + } + + return ret; +} + +int clock_enable(unsigned id) +{ + return msm_proc_comm(PCOM_CLKCTL_RPC_ENABLE, &id, 0); +} + +int clock_disable(unsigned id) +{ + return msm_proc_comm(PCOM_CLKCTL_RPC_DISABLE, &id, 0); +} + +int clock_set_rate(unsigned id, unsigned rate) +{ + return msm_proc_comm(PCOM_CLKCTL_RPC_SET_RATE, &id, &rate); +} + +int clock_get_rate(unsigned id) +{ + if (msm_proc_comm(PCOM_CLKCTL_RPC_RATE, &id, 0)) { + return -1; + } else { + return (int) id; + } +} + +void reboot(void) +{ + msm_proc_comm(PCOM_RESET_CHIP, 0, 0); + for (;;) ; +} + +int vreg_enable(unsigned id) +{ + unsigned n = 1; + return msm_proc_comm(PCOM_VREG_SWITCH, &id, &n); +} + +int vreg_disable(unsigned id) +{ + unsigned n = 0; + return msm_proc_comm(PCOM_VREG_SWITCH, &id, &n); +} + +int vreg_set_level(unsigned id, unsigned level) +{ + return msm_proc_comm(PCOM_VREG_SET_LEVEL, &id, &level); +} + + |