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authorNishanth Menon <nm@ti.com>2014-01-14 12:27:29 -0600
committerTom Rini <trini@ti.com>2014-01-24 11:41:17 -0500
commit194dd74ad919e57026f385aaab7f89acf7ea79ef (patch)
tree48b2fc010a5c9165ec11e4759f7d29cf78ebee9e
parent3ac8c0bf65759a1725e5dfc24a6e0214d6b37a4a (diff)
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DRA7: add ABB setup for MPU voltage domain
Patch adds modification to shared omap5 abb_setup() function, and proper registers definitions needed for ABB setup sequence. ABB is initialized for MPU voltage domain at OPP_NOM. Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Tom Rini <trini@ti.com>
-rw-r--r--arch/arm/cpu/armv7/omap5/abb.c13
-rw-r--r--arch/arm/cpu/armv7/omap5/prcm-regs.c8
-rw-r--r--arch/arm/include/asm/arch-omap5/omap.h2
3 files changed, 20 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/omap5/abb.c b/arch/arm/cpu/armv7/omap5/abb.c
index 31b6795..3bf8897 100644
--- a/arch/arm/cpu/armv7/omap5/abb.c
+++ b/arch/arm/cpu/armv7/omap5/abb.c
@@ -28,18 +28,25 @@
s8 abb_setup_ldovbb(u32 fuse, u32 ldovbb)
{
u32 vset;
+ u32 fuse_enable_mask = OMAP5_ABB_FUSE_ENABLE_MASK;
+ u32 fuse_vset_mask = OMAP5_ABB_FUSE_VSET_MASK;
+ if (!is_omap54xx()) {
+ /* DRA7 */
+ fuse_enable_mask = DRA7_ABB_FUSE_ENABLE_MASK;
+ fuse_vset_mask = DRA7_ABB_FUSE_VSET_MASK;
+ }
/*
* ABB parameters must be properly fused
* otherwise ABB should be disabled
*/
vset = readl(fuse);
- if (!(vset & OMAP5_ABB_FUSE_ENABLE_MASK))
+ if (!(vset & fuse_enable_mask))
return -1;
/* prepare VSET value for LDOVBB mux register */
- vset &= OMAP5_ABB_FUSE_VSET_MASK;
- vset >>= ffs(OMAP5_ABB_FUSE_VSET_MASK) - 1;
+ vset &= fuse_vset_mask;
+ vset >>= ffs(fuse_vset_mask) - 1;
vset <<= ffs(OMAP5_ABB_LDOVBBMPU_VSET_OUT_MASK) - 1;
vset |= OMAP5_ABB_LDOVBBMPU_MUX_CTRL_MASK;
diff --git a/arch/arm/cpu/armv7/omap5/prcm-regs.c b/arch/arm/cpu/armv7/omap5/prcm-regs.c
index 77c428b..ff32807 100644
--- a/arch/arm/cpu/armv7/omap5/prcm-regs.c
+++ b/arch/arm/cpu/armv7/omap5/prcm-regs.c
@@ -432,11 +432,13 @@ struct omap_sys_ctrl_regs const dra7xx_ctrl = {
.control_srcomp_code_latch = 0x4A002E84,
.control_ddr_control_ext_0 = 0x4A002E88,
.control_padconf_core_base = 0x4A003400,
+ .control_std_fuse_opp_vdd_mpu_2 = 0x4A003B24,
.control_port_emif1_sdram_config = 0x4AE0C110,
.control_port_emif1_lpddr2_nvm_config = 0x4AE0C114,
.control_port_emif2_sdram_config = 0x4AE0C118,
.control_emif1_sdram_config_ext = 0x4AE0C144,
.control_emif2_sdram_config_ext = 0x4AE0C148,
+ .control_wkup_ldovbb_mpu_voltage_ctrl = 0x4AE0C158,
.control_padconf_mode = 0x4AE0C5A0,
.control_xtal_oscillator = 0x4AE0C5A4,
.control_i2c_2 = 0x4AE0C5A8,
@@ -807,6 +809,9 @@ struct prcm_regs const dra7xx_prcm = {
.cm_dsp_clkstctrl = 0x4a005400,
.cm_dsp_dsp_clkctrl = 0x4a005420,
+ /* prm irqstatus regs */
+ .prm_irqstatus_mpu_2 = 0x4ae06014,
+
/* cm2.ckgen */
.cm_clksel_usb_60mhz = 0x4a008104,
.cm_clkmode_dpll_per = 0x4a008140,
@@ -967,4 +972,7 @@ struct prcm_regs const dra7xx_prcm = {
.prm_vc_val_bypass = 0x4ae07da0,
.prm_vc_cfg_i2c_mode = 0x4ae07db4,
.prm_vc_cfg_i2c_clk = 0x4ae07db8,
+
+ .prm_abbldo_mpu_setup = 0x4AE07DDC,
+ .prm_abbldo_mpu_ctrl = 0x4AE07DE0,
};
diff --git a/arch/arm/include/asm/arch-omap5/omap.h b/arch/arm/include/asm/arch-omap5/omap.h
index 34f6fc5..19fdece 100644
--- a/arch/arm/include/asm/arch-omap5/omap.h
+++ b/arch/arm/include/asm/arch-omap5/omap.h
@@ -205,6 +205,8 @@ struct s32ktimer {
/* ABB efuse masks */
#define OMAP5_ABB_FUSE_VSET_MASK (0x1F << 24)
#define OMAP5_ABB_FUSE_ENABLE_MASK (0x1 << 29)
+#define DRA7_ABB_FUSE_VSET_MASK (0x1F << 20)
+#define DRA7_ABB_FUSE_ENABLE_MASK (0x1 << 25)
#define OMAP5_ABB_LDOVBBMPU_MUX_CTRL_MASK (0x1 << 10)
#define OMAP5_ABB_LDOVBBMPU_VSET_OUT_MASK (0x1f << 0)