From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric.miao@linaro.org (Eric Miao) Date: Thu, 22 Dec 2011 21:48:24 +0800 Subject: [PATCH] ARM: imx6q: add support for IRAM Message-ID: <1324561704-4145-1-git-send-email-eric.miao@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Jason Chen Signed-off-by: Jason Chen Signed-off-by: Eric Miao --- arch/arm/mach-imx/Kconfig | 1 + arch/arm/mach-imx/clock-imx6q.c | 3 ++- arch/arm/mach-imx/mach-imx6q.c | 3 +++ arch/arm/plat-mxc/include/mach/mx6q.h | 6 ++++++ 4 files changed, 12 insertions(+), 1 deletions(-) diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 6ee6803..023d240 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -602,6 +602,7 @@ config SOC_IMX6Q select HAVE_IMX_GPC select HAVE_IMX_MMDC select HAVE_IMX_SRC + select IRAM_ALLOC select ARM_CPU_SUSPEND if PM select USE_OF diff --git a/arch/arm/mach-imx/clock-imx6q.c b/arch/arm/mach-imx/clock-imx6q.c index 039a7ab..b347a84 100644 --- a/arch/arm/mach-imx/clock-imx6q.c +++ b/arch/arm/mach-imx/clock-imx6q.c @@ -1777,6 +1777,7 @@ DEF_CLK(mmdc_ch0_axi_clk, CCGR3, CG10, &periph_clk, &mmdc_ch0_ipg_clk); DEF_CLK(mmdc_ch1_ipg_clk, CCGR3, CG13, &ipg_clk, NULL); DEF_CLK(mmdc_ch1_axi_clk, CCGR3, CG11, &periph2_clk, &mmdc_ch1_ipg_clk); DEF_CLK(openvg_axi_clk, CCGR3, CG13, &axi_clk, NULL); +DEF_CLK(ocram_clk, CCGR3, CG14, &ahb_clk, NULL); DEF_CLK(pwm1_clk, CCGR4, CG8, &ipg_perclk, NULL); DEF_CLK(pwm2_clk, CCGR4, CG9, &ipg_perclk, NULL); DEF_CLK(pwm3_clk, CCGR4, CG10, &ipg_perclk, NULL); @@ -1984,7 +1985,7 @@ int __init mx6q_clocks_init(void) /* only keep necessary clocks on */ writel_relaxed(0x3 << CG0 | 0x3 << CG1 | 0x3 << CG2, CCGR0); writel_relaxed(0x3 << CG8 | 0x3 << CG9 | 0x3 << CG10, CCGR2); - writel_relaxed(0x3 << CG10 | 0x3 << CG12, CCGR3); + writel_relaxed(0x3 << CG10 | 0x3 << CG12 | 0x1 << CG14, CCGR3); writel_relaxed(0x3 << CG4 | 0x3 << CG6 | 0x3 << CG7, CCGR4); writel_relaxed(0x3 << CG0, CCGR5); writel_relaxed(0, CCGR6); diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index bee6334..d69f99f 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -24,6 +24,7 @@ #include #include #include +#include /* For imx6q sabrelite board: set KSZ9021RN RGMII pad skew */ static int ksz9021rn_phy_fixup(struct phy_device *phydev) @@ -48,6 +49,8 @@ static void __init imx6q_init_machine(void) of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); + iram_init(MX6Q_IRAM_BASE_ADDR, MX6Q_IRAM_SIZE); + imx6q_pm_init(); } diff --git a/arch/arm/plat-mxc/include/mach/mx6q.h b/arch/arm/plat-mxc/include/mach/mx6q.h index 254a561..e051ff1 100644 --- a/arch/arm/plat-mxc/include/mach/mx6q.h +++ b/arch/arm/plat-mxc/include/mach/mx6q.h @@ -13,6 +13,8 @@ #ifndef __MACH_MX6Q_H__ #define __MACH_MX6Q_H__ +#include + #define MX6Q_IO_P2V(x) IMX_IO_P2V(x) #define MX6Q_IO_ADDRESS(x) IOMEM(MX6Q_IO_P2V(x)) @@ -30,4 +32,8 @@ #define MX6Q_UART4_BASE_ADDR 0x021f0000 #define MX6Q_UART4_SIZE 0x4000 +/* The last 4K is for cpu hotplug to workaround wdog issue */ +#define MX6Q_IRAM_BASE_ADDR 0x00900000 +#define MX6Q_IRAM_SIZE (SZ_256K - SZ_4K) + #endif /* __MACH_MX6Q_H__ */ -- 1.7.5.4