diff options
| author | Quinn Jensen <quinn.jensen@freescale.com> | 2007-05-24 18:12:35 -0600 |
|---|---|---|
| committer | Quinn Jensen <quinn.jensen@freescale.com> | 2007-05-24 18:12:35 -0600 |
| commit | 1fe3ba287e4eb4a437a1f9e1c2d2f0a18ec76e7c (patch) | |
| tree | 8658d8e793e4f4f438ec48fbcb786391fcfb2c9b | |
| parent | a854f7cd5b2e804701e55ec6f6360b9d71b8f043 (diff) | |
CR ENGR00028767: Enable clock in HAC module.
http://www.bitshrine.org/gpp/linux-2.6.19.2-mx-fix_hacc_clocking.patch
| -rw-r--r-- | drivers/mxc/security/mxc_hacc.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/mxc/security/mxc_hacc.c b/drivers/mxc/security/mxc_hacc.c index 3fc296e05ef2..6ea14f8da150 100644 --- a/drivers/mxc/security/mxc_hacc.c +++ b/drivers/mxc/security/mxc_hacc.c @@ -25,6 +25,7 @@ */ #include "mxc_hacc.h" +#include <linux/clk.h> #ifdef CONFIG_MXC_HAC_TEST_DEBUG #include <linux/module.h> #endif /* CONFIG_MXC_HAC_TEST_DEBUG */ @@ -63,8 +64,12 @@ static unsigned short hac_suspend_state = 0; */ hac_ret hac_hash_data(ulong start_address, ulong blk_len, hac_hash option) { + struct clk *clk; ulong hac_start, hac_blk_cnt, hac_ctl; hac_ret ret_val = HAC_SUCCESS; + + clk = clk_get(NULL, "hac_clk"); + clk_enable(clk); hac_start = __raw_readl(HAC_START_ADDR); hac_blk_cnt = __raw_readl(HAC_BLK_CNT); hac_ctl = __raw_readl(HAC_CTL); @@ -324,11 +329,15 @@ hac_ret hac_stop(void) hac_ret hac_hash_result(hac_hash_rlt * hash_result_reg) { ulong hac_hsh4, hac_hsh3, hac_hsh2, hac_hsh1, hac_hsh0; + struct clk *clk; + + clk = clk_get(NULL, "hac_clk"); hac_hsh4 = __raw_readl(HAC_HSH4); hac_hsh3 = __raw_readl(HAC_HSH3); hac_hsh2 = __raw_readl(HAC_HSH2); hac_hsh1 = __raw_readl(HAC_HSH1); hac_hsh0 = __raw_readl(HAC_HSH0); + clk_disable(clk); if (hac_suspend_state == 1) { pr_debug("HAC Module: HAC Module is in suspend mode.\n"); return HAC_FAILURE; @@ -463,9 +472,10 @@ hac_ret hac_burst_read(hac_burst_read_config burst_read) hac_ret hac_suspend(struct platform_device * pdev, pm_message_t state) { ulong hac_ctl; + struct clk *clk; hac_ctl = __raw_readl(HAC_CTL); - + clk = clk_get(NULL, "hac_clk"); hac_suspend_state = 1; pr_debug("HAC Module: In suspend power down.\n"); @@ -473,6 +483,7 @@ hac_ret hac_suspend(struct platform_device * pdev, pm_message_t state) /* Enable stop bits in HAC Control Register. */ hac_ctl |= HAC_CTL_STOP; __raw_writel(hac_ctl, HAC_CTL); + clk_disable(clk); return HAC_SUCCESS; } @@ -490,7 +501,10 @@ hac_ret hac_suspend(struct platform_device * pdev, pm_message_t state) hac_ret hac_resume(struct platform_device * pdev) { ulong hac_ctl; + struct clk *clk; + clk = clk_get(NULL, "hac_clk"); + clk_enable(clk); hac_ctl = __raw_readl(HAC_CTL); pr_debug("HAC Module: Resume power on.\n"); |