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| author | Lee Jones <lee.jones@linaro.org> | 2013-03-28 16:11:05 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-03-29 17:49:08 (GMT) |
| commit | e0c44686c3e22b2b7f0441a31db411b1c70b47c3 (patch) | |
| tree | 931b0217b0b5aed06f5cc92df365315e568345f9 /arch/arm/mach-ux500/board-mop500-regulators.c | |
| parent | 422d765d2cb9a22ded86d8b63a1701e296436b81 (diff) | |
| download | linux-fsl-qoriq-e0c44686c3e22b2b7f0441a31db411b1c70b47c3.tar.xz | |
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/board-mop500-regulators.c')
| -rw-r--r-- | arch/arm/mach-ux500/board-mop500-regulators.c | 28 |
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 2a2751e..c1173a1 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; + } } |