summaryrefslogtreecommitdiff
path: root/arch/arm/cpu/armv7
diff options
context:
space:
mode:
authorLokesh Vutla <lokeshvutla@ti.com>2013-05-30 03:19:29 +0000
committerTom Rini <trini@ti.com>2013-06-10 08:43:09 -0400
commit63fc0c775c1eb86b9a1abb4e37311bbcf1dca008 (patch)
tree363b14b1ee207f2c9644adf366ab15884dbe8819 /arch/arm/cpu/armv7
parent4de28d7921908d8b222fac331111c94e048ee282 (diff)
downloadu-boot-imx-63fc0c775c1eb86b9a1abb4e37311bbcf1dca008.zip
u-boot-imx-63fc0c775c1eb86b9a1abb4e37311bbcf1dca008.tar.gz
u-boot-imx-63fc0c775c1eb86b9a1abb4e37311bbcf1dca008.tar.bz2
ARM: DRA7xx: power Add support for tps659038 PMIC
TPS659038 is the power IC used in DRA7XX boards. Adding support for this and also adding pmic data for DRA7XX boards. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch/arm/cpu/armv7')
-rw-r--r--arch/arm/cpu/armv7/omap-common/clocks-common.c23
-rw-r--r--arch/arm/cpu/armv7/omap5/hw_data.c38
2 files changed, 60 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/clocks-common.c b/arch/arm/cpu/armv7/omap-common/clocks-common.c
index 6c8e063..eda3451 100644
--- a/arch/arm/cpu/armv7/omap-common/clocks-common.c
+++ b/arch/arm/cpu/armv7/omap-common/clocks-common.c
@@ -30,6 +30,7 @@
* MA 02111-1307 USA
*/
#include <common.h>
+#include <i2c.h>
#include <asm/omap_common.h>
#include <asm/gpio.h>
#include <asm/arch/clock.h>
@@ -487,6 +488,9 @@ void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic)
u32 offset = volt_mv;
int ret = 0;
+ if (!volt_mv)
+ return;
+
pmic->pmic_bus_init();
/* See if we can first get the GPIO if needed */
if (pmic->gpio_en)
@@ -543,6 +547,15 @@ void scale_vcores(struct vcores_data const *vcores)
do_scale_vcore(vcores->mm.addr, vcores->mm.value,
vcores->mm.pmic);
+ do_scale_vcore(vcores->gpu.addr, vcores->gpu.value,
+ vcores->gpu.pmic);
+
+ do_scale_vcore(vcores->eve.addr, vcores->eve.value,
+ vcores->eve.pmic);
+
+ do_scale_vcore(vcores->iva.addr, vcores->iva.value,
+ vcores->iva.pmic);
+
if (emif_sdram_type() == EMIF_SDRAM_TYPE_DDR3) {
/* Configure LDO SRAM "magic" bits */
writel(2, (*prcm)->prm_sldo_core_setup);
@@ -732,3 +745,13 @@ void prcm_init(void)
if (OMAP_INIT_CONTEXT_SPL != omap_hw_init_context())
enable_basic_uboot_clocks();
}
+
+void gpi2c_init(void)
+{
+ static int gpi2c = 1;
+
+ if (gpi2c) {
+ i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
+ gpi2c = 0;
+ }
+}
diff --git a/arch/arm/cpu/armv7/omap5/hw_data.c b/arch/arm/cpu/armv7/omap5/hw_data.c
index 585e318..90274a0 100644
--- a/arch/arm/cpu/armv7/omap5/hw_data.c
+++ b/arch/arm/cpu/armv7/omap5/hw_data.c
@@ -26,6 +26,7 @@
* MA 02111-1307 USA
*/
#include <common.h>
+#include <palmas.h>
#include <asm/arch/omap.h>
#include <asm/arch/sys_proto.h>
#include <asm/omap_common.h>
@@ -294,6 +295,19 @@ struct pmic_data palmas = {
.pmic_write = omap_vc_bypass_send_value,
};
+struct pmic_data tps659038 = {
+ .base_offset = PALMAS_SMPS_BASE_VOLT_UV,
+ .step = 10000, /* 10 mV represented in uV */
+ /*
+ * Offset codes 1-6 all give the base voltage in Palmas
+ * Offset code 0 switches OFF the SMPS
+ */
+ .start_code = 6,
+ .i2c_slave_addr = TPS659038_I2C_SLAVE_ADDR,
+ .pmic_bus_init = gpi2c_init,
+ .pmic_write = palmas_i2c_write_u8,
+};
+
struct vcores_data omap5430_volts = {
.mpu.value = VDD_MPU,
.mpu.addr = SMPS_REG_ADDR_12_MPU,
@@ -322,6 +336,28 @@ struct vcores_data omap5430_volts_es2 = {
.mm.pmic = &palmas,
};
+struct vcores_data dra752_volts = {
+ .mpu.value = VDD_MPU_DRA752,
+ .mpu.addr = TPS659038_REG_ADDR_SMPS12_MPU,
+ .mpu.pmic = &tps659038,
+
+ .eve.value = VDD_EVE_DRA752,
+ .eve.addr = TPS659038_REG_ADDR_SMPS45_EVE,
+ .eve.pmic = &tps659038,
+
+ .gpu.value = VDD_GPU_DRA752,
+ .gpu.addr = TPS659038_REG_ADDR_SMPS6_GPU,
+ .gpu.pmic = &tps659038,
+
+ .core.value = VDD_CORE_DRA752,
+ .core.addr = TPS659038_REG_ADDR_SMPS7_CORE,
+ .core.pmic = &tps659038,
+
+ .iva.value = VDD_IVA_DRA752,
+ .iva.addr = TPS659038_REG_ADDR_SMPS8_IVA,
+ .iva.pmic = &tps659038,
+};
+
/*
* Enable essential clock domains, modules and
* do some additional special settings needed
@@ -562,7 +598,7 @@ void hw_data_init(void)
case DRA752_ES1_0:
*prcm = &dra7xx_prcm;
*dplls_data = &dra7xx_dplls;
- *omap_vcores = &omap5430_volts_es2;
+ *omap_vcores = &dra752_volts;
*ctrl = &dra7xx_ctrl;
break;