summaryrefslogtreecommitdiff
path: root/arch/arm/mach-ux500
diff options
context:
space:
mode:
authorLee Jones <lee.jones@linaro.org>2013-03-28 16:11:05 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-03-29 17:49:08 +0000
commite0c44686c3e22b2b7f0441a31db411b1c70b47c3 (patch)
tree931b0217b0b5aed06f5cc92df365315e568345f9 /arch/arm/mach-ux500
parent422d765d2cb9a22ded86d8b63a1701e296436b81 (diff)
ARM: ux500: Setup external regulator supply #2 for HREF v20 boards
v20 HREFs require non-standard configuration of EXT_SUPPLY2 to function correctly (specific information is commented). Here we make use of the recently added mechanism to adapt initialisation values for such use-cases. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'arch/arm/mach-ux500')
-rw-r--r--arch/arm/mach-ux500/board-mop500-regulators.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm/mach-ux500/board-mop500-regulators.c b/arch/arm/mach-ux500/board-mop500-regulators.c
index 2a2751e4aa8a..c1173a161a04 100644
--- a/arch/arm/mach-ux500/board-mop500-regulators.c
+++ b/arch/arm/mach-ux500/board-mop500-regulators.c
@@ -510,4 +510,32 @@ void mop500_regulator_init(void)
regulator->constraints.state_mem.disabled = 1;
regulator->constraints.state_standby.disabled = 1;
}
+
+ /*
+ * Handle AB8500_EXT_SUPPLY2 on HREFP_V20_V50 boards (do it for
+ * all HREFP_V20 boards)
+ */
+ if (cpu_is_u8500v20()) {
+ /* VextSupply2RequestCtrl = HP/OFF depending on VxRequest */
+ ab8500_modify_reg_init(AB8500_REGUREQUESTCTRL3, 0x01, 0x01);
+
+ /* VextSupply2SysClkReq1HPValid = SysClkReq1 controlled */
+ ab8500_modify_reg_init(AB8500_REGUSYSCLKREQ1HPVALID2,
+ 0x20, 0x20);
+
+ /* VextSupply2 = force HP at initialization */
+ ab8500_modify_reg_init(AB8500_EXTSUPPLYREGU, 0x0c, 0x04);
+
+ /* enable VextSupply2 during platform active */
+ regulator = &ab8500_ext_regulators[AB8500_EXT_SUPPLY2];
+ regulator->constraints.always_on = 1;
+
+ /* disable VextSupply2 in suspend */
+ regulator = &ab8500_ext_regulators[AB8500_EXT_SUPPLY2];
+ regulator->constraints.state_mem.disabled = 1;
+ regulator->constraints.state_standby.disabled = 1;
+
+ /* enable VextSupply2 HW control (used in suspend) */
+ regulator->driver_data = (void *)&ab8500_ext_supply2;
+ }
}