[PATCH 1/5] ARM: mvebu: Enable PUP register
From: Ezequiel Garcia <hidden>
Date: 2014-08-23 22:55:11
Subsystem:
arm port, arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, the rest · Maintainers:
Russell King, Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Linus Torvalds
As reported by Sebastian, we need to enable this explicitly for the Tx clock on RGMII. While here, let's enable all the other peripherals. Although this is documented to be required only for Armada XP SoC, it has been found to be harmless on Armada 370, so we do it unconditionally to simplify the code. Reported-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Ezequiel Garcia <redacted> --- arch/arm/mach-mvebu/armada-370-xp.c | 5 +++++ arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h | 7 +++++++ 2 files changed, 12 insertions(+)
diff --git a/arch/arm/mach-mvebu/armada-370-xp.c b/arch/arm/mach-mvebu/armada-370-xp.c
index f2b991e..96d5878 100644
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c@@ -62,6 +62,11 @@ static int armada_370_xp_init_soc(void) mvebu_set_memory(phys_base, phys_size); mvebu_mbus_add_range(0xf0, 0x01, MVEBU_REMAP_INT_REG_BASE); + /* Enable GBE0, GBE1, LCD and NAND PUP */ + reg = readl(ARMADA_XP_PUP_ENABLE_BASE); + reg |= GE0_PUP_EN | GE1_PUP_EN | LCD_PUP_EN | NAND_PUP_EN; + writel(reg, ARMADA_XP_PUP_ENABLE_BASE); + return 0; } core_initcall(armada_370_xp_init_soc);
diff --git a/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h b/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h
index ccc687c..f6db784 100644
--- a/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h
+++ b/arch/arm/mach-mvebu/include/mach/armada-370-xp-regs.h@@ -30,6 +30,13 @@ #define SAR_TCLK_FREQ BIT(20) #define SAR_HIGH 0x04 +#define ARMADA_XP_PUP_ENABLE_BASE (ARMADA_370_XP_INT_REGS_BASE + 0x1864c) +#define GE0_PUP_EN BIT(0) +#define GE1_PUP_EN BIT(1) +#define LCD_PUP_EN BIT(2) +#define NAND_PUP_EN BIT(4) + + #define ARMADA_370_XP_SDRAM_BASE (ARMADA_370_XP_INT_REGS_BASE + 0x20000) #define DDR_BASE_CS 0x180 #define DDR_BASE_CSn(n) (DDR_BASE_CS + ((n) * 0x8))
--
2.0.1
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